/* === SongSplit — Standalone Styles === */

/* Self-hosted fonts (privacy: no external requests to Google) */
@font-face {
    font-family: 'DM Sans';
    src: url('../fonts/songsplit/dm-sans-400.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'DM Sans';
    src: url('../fonts/songsplit/dm-sans-400-ext.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
    font-family: 'DM Sans';
    src: url('../fonts/songsplit/dm-sans-400.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'DM Sans';
    src: url('../fonts/songsplit/dm-sans-400.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'DM Sans';
    src: url('../fonts/songsplit/dm-sans-400.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'IBM Plex Mono';
    src: url('../fonts/songsplit/ibm-plex-mono-400.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'IBM Plex Mono';
    src: url('../fonts/songsplit/ibm-plex-mono-500.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --ss-bg: #0e0e12;
    --ss-surface: #16161b;
    --ss-surface-hover: #1e1e24;
    --ss-border: rgba(255, 255, 255, 0.06);
    --ss-text: #e0e0e4;
    --ss-text-muted: #8a8a96;
    --ss-accent: #6ea0ff;
    --ss-accent-hover: #8bb5ff;
    --ss-accent-glow: rgba(110, 160, 255, 0.25);
    --ss-gradient: linear-gradient(135deg, #6ea0ff 0%, #a78bfa 100%);
    --ss-success: #34d399;
    --ss-error: #f87171;
    --ss-warning: #fbbf24;
    --ss-radius: 12px;
    --ss-radius-sm: 8px;
    --ss-font: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --ss-mono: 'IBM Plex Mono', monospace;

    /* Stem colors — 3-tier system: vocals=purple, recording=coral, all others=blue */
    --ss-stem-vocals: #a78bfa;
    --ss-stem-drums: #5b9bf5;
    --ss-stem-bass: #5b9bf5;
    --ss-stem-other: #5b9bf5;
    --ss-stem-guitar: #5b9bf5;
    --ss-stem-piano: #5b9bf5;
    --ss-stem-backing: #5b9bf5;
    --ss-stem-recording: #f87171;

    /* Semantic colors for theme switching */
    --ss-surface-overlay: rgba(10, 14, 26, 0.85);
    --ss-canvas-bg: #111827;
    --ss-playhead: rgba(255, 255, 255, 0.9);
    --ss-toast-bg: #1f2937;
    --ss-toast-text: #e8ecf4;
    --ss-white-alpha-02: rgba(255, 255, 255, 0.02);
    --ss-white-alpha-03: rgba(255, 255, 255, 0.03);
    --ss-white-alpha-04: rgba(255, 255, 255, 0.04);
    --ss-white-alpha-05: rgba(255, 255, 255, 0.05);
    --ss-white-alpha-06: rgba(255, 255, 255, 0.06);
    --ss-white-alpha-08: rgba(255, 255, 255, 0.08);
    --ss-white-alpha-10: rgba(255, 255, 255, 0.1);
    --ss-white-alpha-12: rgba(255, 255, 255, 0.12);
    --ss-white-alpha-15: rgba(255, 255, 255, 0.15);
    --ss-white-alpha-30: rgba(255, 255, 255, 0.3);
    --ss-black-alpha-30: rgba(0, 0, 0, 0.3);
    --ss-black-alpha-50: rgba(0, 0, 0, 0.5);
    --ss-black-alpha-70: rgba(0, 0, 0, 0.7);
    --ss-piano-white-key: #e8e8e8;
    --ss-piano-white-border: #bbb;
    --ss-piano-black-key: #222;
    --ss-piano-black-border: #444;
    --ss-piano-label: #9333ea;
    --ss-pitch-lane-natural: rgba(255, 255, 255, 0.02);
    --ss-pitch-lane-sharp: rgba(0, 0, 0, 0.15);
    --ss-pitch-gridline-octave: rgba(255, 255, 255, 0.12);
    --ss-pitch-gridline: rgba(255, 255, 255, 0.04);
    --ss-fullscreen-bg: linear-gradient(180deg, #0a0e1a 0%, #111827 50%, #0a0e1a 100%);
}

/* Light theme overrides */
[data-theme="light"] {
    --ss-bg: #f5f5f7;
    --ss-surface: #ffffff;
    --ss-surface-hover: #f0f0f3;
    --ss-border: rgba(0, 0, 0, 0.08);
    --ss-text: #1a1a2e;
    --ss-text-muted: #6b6b7b;
    --ss-accent: #4a7fd8;
    --ss-accent-hover: #3a6cc0;
    --ss-accent-glow: rgba(74, 127, 216, 0.25);
    --ss-success: #16a34a;
    --ss-error: #dc2626;
    --ss-warning: #d97706;

    --ss-stem-vocals: #7c3aed;
    --ss-stem-drums: #2563eb;
    --ss-stem-bass: #2563eb;
    --ss-stem-other: #2563eb;
    --ss-stem-guitar: #2563eb;
    --ss-stem-piano: #2563eb;
    --ss-stem-backing: #2563eb;
    --ss-stem-recording: #dc2626;

    --ss-surface-overlay: rgba(245, 245, 247, 0.92);
    --ss-canvas-bg: #f0f0f3;
    --ss-playhead: rgba(0, 0, 0, 0.8);
    --ss-toast-bg: #ffffff;
    --ss-toast-text: #1a1a2e;
    --ss-white-alpha-02: rgba(0, 0, 0, 0.02);
    --ss-white-alpha-03: rgba(0, 0, 0, 0.03);
    --ss-white-alpha-04: rgba(0, 0, 0, 0.04);
    --ss-white-alpha-05: rgba(0, 0, 0, 0.05);
    --ss-white-alpha-06: rgba(0, 0, 0, 0.06);
    --ss-white-alpha-08: rgba(0, 0, 0, 0.06);
    --ss-white-alpha-10: rgba(0, 0, 0, 0.08);
    --ss-white-alpha-12: rgba(0, 0, 0, 0.08);
    --ss-white-alpha-15: rgba(0, 0, 0, 0.1);
    --ss-white-alpha-30: rgba(0, 0, 0, 0.2);
    --ss-black-alpha-30: rgba(0, 0, 0, 0.15);
    --ss-black-alpha-50: rgba(0, 0, 0, 0.2);
    --ss-black-alpha-70: rgba(0, 0, 0, 0.4);
    --ss-piano-white-key: #f8f8f8;
    --ss-piano-white-border: #d0d0d0;
    --ss-piano-black-key: #333;
    --ss-piano-black-border: #555;
    --ss-piano-label: #7c3aed;
    --ss-pitch-lane-natural: rgba(0, 0, 0, 0.02);
    --ss-pitch-lane-sharp: rgba(0, 0, 0, 0.06);
    --ss-pitch-gridline-octave: rgba(0, 0, 0, 0.12);
    --ss-pitch-gridline: rgba(0, 0, 0, 0.04);
    --ss-fullscreen-bg: linear-gradient(180deg, #e8e8ec 0%, #f5f5f7 50%, #e8e8ec 100%);
}

/* Auto theme: follow OS preference */
@media (prefers-color-scheme: light) {
    [data-theme="auto"] {
        --ss-bg: #f5f5f7;
        --ss-surface: #ffffff;
        --ss-surface-hover: #f0f0f3;
        --ss-border: rgba(0, 0, 0, 0.08);
        --ss-text: #1a1a2e;
        --ss-text-muted: #6b6b7b;
        --ss-accent: #4a7fd8;
        --ss-accent-hover: #3a6cc0;
        --ss-accent-glow: rgba(74, 127, 216, 0.25);
        --ss-success: #16a34a;
        --ss-error: #dc2626;
        --ss-warning: #d97706;

        --ss-stem-vocals: #7c3aed;
        --ss-stem-drums: #2563eb;
        --ss-stem-bass: #2563eb;
        --ss-stem-other: #2563eb;
        --ss-stem-guitar: #2563eb;
        --ss-stem-piano: #2563eb;
        --ss-stem-backing: #2563eb;
        --ss-stem-recording: #dc2626;

        --ss-surface-overlay: rgba(245, 245, 247, 0.92);
        --ss-canvas-bg: #f0f0f3;
        --ss-playhead: rgba(0, 0, 0, 0.8);
        --ss-toast-bg: #ffffff;
        --ss-toast-text: #1a1a2e;
        --ss-white-alpha-02: rgba(0, 0, 0, 0.02);
        --ss-white-alpha-03: rgba(0, 0, 0, 0.03);
        --ss-white-alpha-04: rgba(0, 0, 0, 0.04);
        --ss-white-alpha-05: rgba(0, 0, 0, 0.05);
        --ss-white-alpha-06: rgba(0, 0, 0, 0.06);
        --ss-white-alpha-08: rgba(0, 0, 0, 0.06);
        --ss-white-alpha-10: rgba(0, 0, 0, 0.08);
        --ss-white-alpha-12: rgba(0, 0, 0, 0.08);
        --ss-white-alpha-15: rgba(0, 0, 0, 0.1);
        --ss-white-alpha-30: rgba(0, 0, 0, 0.2);
        --ss-black-alpha-30: rgba(0, 0, 0, 0.15);
        --ss-black-alpha-50: rgba(0, 0, 0, 0.2);
        --ss-black-alpha-70: rgba(0, 0, 0, 0.4);
        --ss-piano-white-key: #f8f8f8;
        --ss-piano-white-border: #d0d0d0;
        --ss-piano-black-key: #333;
        --ss-piano-black-border: #555;
        --ss-piano-label: #7c3aed;
        --ss-pitch-lane-natural: rgba(0, 0, 0, 0.02);
        --ss-pitch-lane-sharp: rgba(0, 0, 0, 0.06);
        --ss-pitch-gridline-octave: rgba(0, 0, 0, 0.12);
        --ss-pitch-gridline: rgba(0, 0, 0, 0.04);
        --ss-fullscreen-bg: linear-gradient(180deg, #e8e8ec 0%, #f5f5f7 50%, #e8e8ec 100%);
    }
}

/* Theme toggle button */
.ss-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: transparent;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}
.ss-theme-toggle:hover {
    background: var(--ss-surface-hover);
    color: var(--ss-text);
}

body {
    font-family: var(--ss-font);
    background: var(--ss-bg);
    color: var(--ss-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden; /* Prevent horizontal scroll from full-bleed hero */
}

/* Ensure [hidden] always works regardless of other display rules */
[hidden] { display: none !important; }

a { color: var(--ss-accent); text-decoration: none; }
a:hover { color: var(--ss-accent-hover); }

/* === Header === */
.ss-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--ss-border);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--ss-surface-overlay);
}

.ss-logo {
    display: flex;
    align-items: center;
}
.ss-logo-img {
    height: 28px;
    width: auto;
}
.ss-logo-light { display: none; }
[data-theme="light"] .ss-logo-dark { display: none; }
[data-theme="light"] .ss-logo-light { display: inline; }
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-logo-dark { display: none; }
    [data-theme="auto"] .ss-logo-light { display: inline; }
}

.ss-header-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}
.ss-nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--ss-text-muted);
    transition: color 0.15s ease;
}
.ss-nav-link:hover {
    color: var(--ss-text);
}
.ss-nav-cta {
    font-size: 13px;
    font-weight: 600;
    color: white;
    background: #7c3aed;
    padding: 7px 16px;
    border-radius: 6px;
    transition: background 0.15s ease;
}
.ss-nav-cta:hover {
    background: #6d28d9;
    color: white;
}
.ss-nav-login {
    font-size: 13px;
    font-weight: 500;
    color: var(--ss-text-muted);
    border: 1px solid var(--ss-border, rgba(255,255,255,0.12));
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.15s ease;
}
.ss-nav-login:hover {
    color: var(--ss-text);
    border-color: var(--ss-white-alpha-15, rgba(255,255,255,0.15));
    background: var(--ss-surface-hover, rgba(255,255,255,0.06));
}
.ss-header-link {
    font-size: 13px;
    font-weight: 500;
    color: var(--ss-text-muted);
    transition: color 0.15s ease;
}
.ss-header-link:hover {
    color: var(--ss-text);
}

@media (max-width: 500px) {
    .ss-header { padding: 12px 16px; }
    .ss-logo-img { height: 24px; }
    .ss-header-nav { gap: 14px; }
    .ss-nav-link { font-size: 13px; }
    .ss-nav-cta { font-size: 12px; padding: 6px 12px; }
    .ss-nav-login { font-size: 12px; padding: 5px 10px; }
}

/* Header player variant — simplified when transport is in body */
.ss-header--player {
    padding: 10px 24px;
}

/* === Main === */
.ss-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 56px 24px 80px;
}
.ss-main--wide {
    max-width: 1200px;
    padding-top: 0;
}

/* === Footer === */
.ss-footer {
    text-align: center;
    padding: 32px 24px;
    border-top: 1px solid var(--ss-border);
    font-size: 13px;
    color: var(--ss-text-muted);
}
.ss-footer a { color: var(--ss-accent); }
.ss-footer-legal { margin-top: 8px; font-size: 11px; opacity: 0.6; }

/* === Buttons === */
.ss-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--ss-radius-sm);
    font-family: var(--ss-font);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}
.ss-btn-primary {
    background: var(--ss-gradient);
    color: white;
}
.ss-btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.ss-btn-outline {
    background: transparent;
    color: var(--ss-text);
    border: 1px solid var(--ss-border);
}
.ss-btn-outline:hover { background: var(--ss-surface-hover); border-color: var(--ss-accent); }

.ss-btn-sm { padding: 6px 14px; font-size: 13px; }
.ss-btn-xs { padding: 4px 10px; font-size: 12px; }

/* === Landing Page === */
.ss-hero { text-align: center; margin-bottom: 40px; }
.ss-hero-title {
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}
.ss-gradient-text {
    background: var(--ss-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.ss-hero-subtitle {
    font-size: 17px;
    color: var(--ss-text-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* === Upload Zone === */
.ss-upload-section { margin-bottom: 48px; }

/* Demo section (visitors — replaces upload zone) */
.ss-demo-section { text-align: center; padding: 2rem 1rem; }
.ss-demo-title { color: #fff; font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.ss-demo-desc { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-bottom: 1.5rem; }
.ss-demo-cta { margin-bottom: 1rem; }
.ss-demo-sub { color: rgba(255,255,255,0.5); font-size: 0.85rem; }
.ss-demo-sub a { color: #a78bfa; }
.ss-demo-sub a:hover { color: #c4b5fd; }

.ss-upload-zone {
    position: relative;
    border: 2px dashed var(--ss-border);
    border-radius: var(--ss-radius);
    padding: 48px 24px;
    min-height: 280px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--ss-surface);
}
.ss-upload-zone:hover, .ss-upload-zone.ss-drag-over {
    border-color: var(--ss-accent);
    background: rgba(110, 160, 255, 0.05);
}
.ss-upload-zone.ss-drag-over {
    box-shadow: 0 0 24px var(--ss-accent-glow);
}

.ss-upload-icon { color: var(--ss-text-muted); margin-bottom: 16px; }
.ss-upload-text { font-size: 17px; font-weight: 500; margin-bottom: 4px; }
.ss-upload-subtext { color: var(--ss-text-muted); font-size: 14px; margin-bottom: 12px; }
.ss-upload-formats { color: var(--ss-text-muted); font-size: 12px; opacity: 0.7; }

.ss-upload-progress { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--ss-surface-overlay); border-radius: var(--ss-radius); }
.ss-upload-progress-bar { position: relative; width: 280px; height: 6px; background: var(--ss-border); border-radius: 3px; overflow: hidden; }
.ss-upload-progress-fill { height: 100%; background: var(--ss-gradient); transition: width 0.6s ease; width: 0; }
.ss-upload-progress-text { margin-top: 12px; font-size: 14px; color: var(--ss-text-muted); }

.ss-upgrade-banner {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: var(--ss-radius-sm);
    padding: 12px 16px;
    margin-top: 12px;
    text-align: center;
    font-size: 14px;
}
.ss-upgrade-banner a { color: var(--ss-warning); font-weight: 500; }

.ss-track-count { text-align: center; margin-top: 12px; font-size: 13px; color: var(--ss-text-muted); }

/* === Track Cards === */
.ss-tracks-section { margin-bottom: 48px; }
.ss-section-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }

.ss-tracks-list { display: flex; flex-direction: column; gap: 12px; }

.ss-track-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius);
    transition: border-color 0.15s ease;
}
.ss-track-card:hover { border-color: var(--ss-white-alpha-15); }

.ss-track-thumb { width: 48px; height: 48px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.ss-track-thumb img { width: 100%; height: 100%; object-fit: cover; }
.ss-track-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ss-surface-hover);
    color: var(--ss-text-muted);
}

.ss-track-info { flex: 1; min-width: 0; }
.ss-track-title { font-size: 15px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 4px; }
.ss-track-status { display: flex; align-items: center; gap: 8px; }

.ss-status-badge {
    font-size: 12px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 4px;
}
.ss-status-completed { background: rgba(52, 211, 153, 0.15); color: var(--ss-success); }
.ss-status-failed { background: rgba(248, 113, 113, 0.15); color: var(--ss-error); }
.ss-status-processing { background: rgba(110, 160, 255, 0.15); color: var(--ss-accent); }

.ss-mini-progress { width: 80px; height: 3px; background: var(--ss-border); border-radius: 2px; overflow: hidden; }
.ss-mini-progress-fill { height: 100%; background: var(--ss-accent); transition: width 0.3s ease; }

.ss-tier-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 3px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.ss-tier-badge--plus { background: rgba(167, 139, 250, 0.15); color: #a78bfa; }
.ss-tier-badge--standard { background: rgba(0, 0, 0, 0.06); color: #9ca3af; }

.ss-track-actions { flex-shrink: 0; }

/* === Features Section === */
.ss-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 64px;
}
.ss-feature {
    text-align: center;
    padding: 24px 16px;
}
.ss-feature svg { color: var(--ss-accent); margin-bottom: 12px; }
.ss-feature h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.ss-feature p { font-size: 13px; color: var(--ss-text-muted); line-height: 1.5; }

@media (max-width: 600px) {
    .ss-features { grid-template-columns: 1fr; gap: 16px; }
}
.ss-features-cta {
    text-align: center;
    margin-top: 32px;
    font-size: 14px;
    color: var(--ss-text-muted);
}
.ss-features-cta a { color: var(--ss-accent, #6ea0ff); }

/* === Section typography (reusable) === */
.ss-section-label {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    color: var(--ss-text);
}
.ss-section-desc {
    font-size: 15px;
    color: var(--ss-text-muted);
    text-align: center;
    margin-bottom: 32px;
}

/* === Section C: Free features grid === */
.ss-free-features { padding: 0 0 48px; }
.ss-free-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 640px;
    margin: 0 auto;
}
.ss-free-card {
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: 10px;
    padding: 20px 16px;
    text-align: center;
}
.ss-free-card-icon {
    color: var(--ss-accent);
    margin-bottom: 10px;
}
.ss-free-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.ss-free-card p { font-size: 14px; color: var(--ss-text-muted); line-height: 1.5; }

@media (max-width: 600px) {
    .ss-free-grid { grid-template-columns: repeat(2, 1fr); }
}

/* === Section D: Plus comparison === */
.ss-plus-section { padding: 0 0 48px; }
.ss-plus-compare {
    display: flex;
    gap: 16px;
    max-width: 560px;
    margin: 0 auto;
}
.ss-plus-col {
    flex: 1;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: 10px;
    padding: 24px;
}
.ss-plus-col--plus {
    border-color: var(--ss-accent);
    box-shadow: 0 0 20px rgba(110, 160, 255, 0.1);
}
.ss-plus-col-title {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--ss-text-muted);
}
.ss-plus-list {
    list-style: none;
    font-size: 14px;
    text-align: left;
    color: var(--ss-text);
}
.ss-plus-list li {
    padding: 6px 0;
    border-bottom: 1px solid var(--ss-border);
}
.ss-plus-list li:last-child { border-bottom: none; }
.ss-check { color: var(--ss-success, #34d399); margin-right: 6px; font-weight: 700; }
.ss-btn-lg { padding: 12px 28px; font-size: 15px; }

@media (max-width: 600px) {
    .ss-plus-compare { flex-direction: column; }
}

/* === Section E: Platform depth === */
.ss-platform-section { padding: 0 0 48px; }
.ss-platform-card {
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-left: 3px solid var(--ss-accent);
    border-radius: 10px;
    padding: 32px;
}
.ss-platform-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.ss-platform-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.ss-platform-item p { font-size: 14px; color: var(--ss-text-muted); line-height: 1.5; }

@media (max-width: 600px) {
    .ss-platform-grid { grid-template-columns: 1fr; }
    .ss-platform-card { padding: 24px 20px; }
}

/* === Section F: Bottom CTA === */
.ss-landing-cta {
    text-align: center;
    padding: 48px 0 32px;
}
.ss-landing-cta h3 { font-size: 22px; font-weight: 600; margin-bottom: 8px; }
.ss-landing-cta p { font-size: 15px; color: var(--ss-text-muted); margin-bottom: 20px; }
.ss-landing-cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.ss-btn-outline {
    padding: 10px 24px;
    font-size: 15px;
    border: 1px solid var(--ss-border);
    border-radius: 8px;
    color: var(--ss-text-muted);
    background: transparent;
    text-decoration: none;
    font-weight: 500;
    transition: border-color 0.2s, color 0.2s;
}
.ss-btn-outline:hover {
    border-color: var(--ss-accent);
    color: var(--ss-accent);
}


/* ============================================================
   LANDING — DARK HERO & ORBITAL CAROUSEL
   ============================================================ */

/* Dark hero wrapper — always dark regardless of user theme */
.ss-hero-dark {
    position: relative;
    background-color: #000;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    /* Full-bleed breakout from .ss-main 720px constraint */
    margin-left: calc(-50vw + 50%);
    width: 100vw;
}

/* Gradient overlay */
.ss-hero-dark::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 1400px 900px at 50% 45%,
            rgba(30, 35, 70, 0.4) 0%,
            rgba(20, 25, 50, 0.6) 35%,
            rgba(14, 14, 26, 0.85) 65%,
            rgba(10, 10, 20, 1) 100%
        ),
        linear-gradient(135deg,
            #0E0E1A 0%,
            #151530 50%,
            #0A0A14 100%
        );
}

/* Noise overlay */
.ss-hero-dark::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    z-index: 0;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    mix-blend-mode: overlay;
}

/* --- Orbital Ring --- */
.ss-orbital-ring-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 400px;
    z-index: 1;
    pointer-events: none;
    perspective: 1000px;
    perspective-origin: 50% 50%;
}

.ss-orbital-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    transform-style: preserve-3d;
}

/* --- Orbital Artist Cards --- */
.ss-orbital-artist {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 180px;
    margin-left: -90px;
    margin-top: -140px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transform-style: preserve-3d;
}

.ss-orbital-artist-inner {
    display: flex;
    flex-direction: column;
}

.ss-orbital-artist-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    position: relative;
}

.ss-orbital-artist-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ss-orbital-artist-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
    pointer-events: none;
}

.ss-orbital-artist-details {
    width: 100%;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ss-orbital-artist-name {
    font-size: 15px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 0;
    letter-spacing: -0.3px;
}

.ss-orbital-artist-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ss-orbital-artist-genre {
    display: inline-block;
    width: fit-content;
    padding: 4px 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ss-orbital-artist-voice {
    display: inline-block;
    width: fit-content;
    padding: 4px 10px;
    background: rgba(102, 126, 234, 0.15);
    color: #667eea;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

/* --- Fog Overlay — larger than Q orb version to clear upload zone --- */
.ss-orbital-fog {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
    background: radial-gradient(
        ellipse 620px 380px at 50% 50%,
        rgba(10, 10, 20, 0.90) 0%,
        rgba(10, 10, 20, 0.60) 50%,
        transparent 100%
    );
}

/* --- Hero Content — sits above orbital and fog --- */
.ss-hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 80px 24px 40px;
}

/* Force white text in dark hero */
.ss-hero-dark .ss-hero-title {
    color: #fff;
}
.ss-hero-dark .ss-hero-subtitle {
    color: rgba(255, 255, 255, 0.65);
}
.ss-hero-dark .ss-gradient-text {
    -webkit-text-fill-color: transparent;
}

/* --- Upload Zone Dark Overrides — Animated WOW --- */
.ss-upload-section--dark {
    width: 100%;
    max-width: 600px;
}

.ss-upload-section--dark .ss-upload-zone {
    position: relative;
    z-index: 0;
    background: rgba(22, 22, 28, 0.80);
    border-color: transparent;
    backdrop-filter: blur(12px);
    color: #e0e0e4;
    box-shadow: 0 0 20px rgba(110, 160, 255, 0.08);
    animation: ss-upload-breathe 4s ease-in-out infinite;
    transition: box-shadow 0.4s ease, transform 0.3s ease;
}

/* Animated gradient border — ::before */
.ss-upload-section--dark .ss-upload-zone::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(270deg, #667eea, #7c3aed, #a78bfa, #667eea);
    background-size: 300% 100%;
    animation: ss-gradient-shift 6s ease infinite;
    z-index: -2;
    opacity: 0.5;
    transition: opacity 0.4s ease;
}

/* Solid inner fill — creates border-only illusion */
.ss-upload-section--dark .ss-upload-zone::after {
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: inherit;
    background: rgba(22, 22, 28, 0.92);
    z-index: -1;
}

/* Inner content above pseudo-elements */
.ss-upload-zone-inner {
    position: relative;
    z-index: 1;
}

/* Mouse-reactive glow */
.ss-upload-glow {
    position: absolute;
    inset: 2px;
    border-radius: inherit;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    background: radial-gradient(
        600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(110, 160, 255, 0.12) 0%,
        rgba(167, 139, 250, 0.06) 30%,
        transparent 70%
    );
}
.ss-upload-zone:hover .ss-upload-glow { opacity: 1; }

[data-theme="light"] .ss-upload-glow {
    background: radial-gradient(
        600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(124, 58, 237, 0.08) 0%,
        rgba(167, 139, 250, 0.04) 30%,
        transparent 70%
    );
}
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-upload-glow {
        background: radial-gradient(
            600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
            rgba(124, 58, 237, 0.08) 0%,
            rgba(167, 139, 250, 0.04) 30%,
            transparent 70%
        );
    }
}
@media (prefers-reduced-motion: reduce) {
    .ss-upload-glow { display: none; }
}

/* Uploading state — disable cursor */
.ss-upload-zone.ss-uploading { cursor: default; }

/* Hover state */
.ss-upload-section--dark .ss-upload-zone:hover {
    box-shadow: 0 0 30px rgba(110, 160, 255, 0.18);
    animation: none;
}
.ss-upload-section--dark .ss-upload-zone:hover::before {
    opacity: 0.8;
}

/* Drag-over state */
.ss-upload-section--dark .ss-upload-zone.ss-drag-over {
    box-shadow: 0 0 40px rgba(110, 160, 255, 0.25);
    transform: scale(1.01);
    animation: none;
}
.ss-upload-section--dark .ss-upload-zone.ss-drag-over::before {
    opacity: 1;
}

/* Floating upload icon */
.ss-upload-section--dark .ss-upload-icon {
    color: rgba(167, 139, 250, 0.7);
    animation: ss-icon-float 3s ease-in-out infinite;
    transition: transform 0.3s ease, color 0.3s ease;
}
.ss-upload-section--dark .ss-upload-zone:hover .ss-upload-icon {
    transform: translateY(-4px);
    color: rgba(167, 139, 250, 0.9);
}
.ss-upload-section--dark .ss-upload-zone.ss-drag-over .ss-upload-icon {
    transform: translateY(-8px) scale(1.1);
    color: #6ea0ff;
    animation: none;
}

/* Gradient text on upload label */
.ss-upload-section--dark .ss-upload-text {
    background: linear-gradient(135deg, #e0e0e4 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ss-upload-section--dark .ss-upload-subtext { color: rgba(255, 255, 255, 0.5); }
.ss-upload-section--dark .ss-upload-formats { color: rgba(255, 255, 255, 0.35); }

.ss-upload-section--dark .ss-upload-progress {
    z-index: 2;
    background: rgba(14, 14, 20, 0.95);
    border-radius: inherit;
}
.ss-upload-section--dark .ss-upload-progress-title { color: #e0e0e4; }
.ss-upload-section--dark .ss-upload-progress-text { color: rgba(255, 255, 255, 0.5); }
.ss-upload-section--dark .ss-upload-quality-msg { color: rgba(255, 255, 255, 0.45); }

.ss-upload-section--dark .ss-upload-consent-label {
    color: rgba(255, 255, 255, 0.5);
}
.ss-upload-section--dark .ss-upload-consent-label a {
    color: #6ea0ff;
}

.ss-upload-section--dark .ss-track-count {
    color: rgba(255, 255, 255, 0.4);
}
.ss-upload-section--dark .ss-track-count--limit {
    color: rgba(251, 191, 36, 0.7);
}

.ss-upload-section--dark .ss-upgrade-banner {
    background: rgba(251, 191, 36, 0.1);
    border-color: rgba(251, 191, 36, 0.3);
    color: rgba(255, 255, 255, 0.7);
}
[data-theme="light"] .ss-upload-section--dark .ss-upgrade-banner {
    background: rgba(180, 120, 0, 0.12);
    border-color: rgba(180, 120, 0, 0.3);
    color: rgba(26, 26, 46, 0.8);
}
[data-theme="light"] .ss-upload-section--dark .ss-upgrade-banner a {
    color: #b47800;
}

/* --- Upload Zone Keyframes --- */
@keyframes ss-gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes ss-upload-breathe {
    0%, 100% { box-shadow: 0 0 20px rgba(110, 160, 255, 0.08); }
    50% { box-shadow: 0 0 28px rgba(110, 160, 255, 0.14); }
}

@keyframes ss-icon-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* Accessibility: disable animations for reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ss-upload-section--dark .ss-upload-zone,
    .ss-upload-section--dark .ss-upload-zone::before,
    .ss-upload-section--dark .ss-upload-icon,
    .ss-proc-ring,
    .ss-proc-ring-core,
    .ss-upload-progress-shimmer {
        animation: none;
    }
}

/* --- Light Mode Hero Overrides --- */
[data-theme="light"] .ss-hero-dark {
    background-color: #e8e8f0;
}
[data-theme="light"] .ss-hero-dark::before {
    background:
        radial-gradient(ellipse 1400px 900px at 50% 45%,
            rgba(140, 130, 200, 0.2) 0%,
            rgba(180, 175, 210, 0.15) 35%,
            rgba(220, 220, 232, 0.4) 65%,
            rgba(232, 232, 240, 1) 100%
        ),
        linear-gradient(135deg,
            #e8e8f0 0%,
            #e0e0ea 50%,
            #e8e8f0 100%
        );
}
[data-theme="light"] .ss-hero-dark::after {
    opacity: 0.05;
}

/* Light fog overlay */
[data-theme="light"] .ss-orbital-fog {
    background: radial-gradient(
        ellipse 620px 380px at 50% 50%,
        rgba(232, 232, 240, 0.90) 0%,
        rgba(232, 232, 240, 0.60) 50%,
        transparent 100%
    );
}

/* Light hero text */
[data-theme="light"] .ss-hero-dark .ss-hero-title {
    color: #1a1a2e;
}
[data-theme="light"] .ss-hero-dark .ss-hero-subtitle {
    color: rgba(26, 26, 46, 0.6);
}
[data-theme="light"] .ss-hero-dark .ss-gradient-text {
    -webkit-text-fill-color: transparent;
}

/* Light upload zone overrides */
[data-theme="light"] .ss-upload-section--dark .ss-upload-zone {
    background: rgba(255, 255, 255, 0.80);
    backdrop-filter: blur(12px);
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.08);
}
[data-theme="light"] .ss-upload-section--dark .ss-upload-zone::after {
    background: rgba(255, 255, 255, 0.92);
}
[data-theme="light"] .ss-upload-section--dark .ss-upload-zone::before {
    background: linear-gradient(270deg, #7c3aed, #a78bfa, #c4b5fd, #7c3aed);
    background-size: 300% 100%;
}
[data-theme="light"] .ss-upload-section--dark .ss-upload-zone:hover {
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.15);
}
[data-theme="light"] .ss-upload-section--dark .ss-upload-zone.ss-drag-over {
    box-shadow: 0 0 40px rgba(124, 58, 237, 0.22);
}
[data-theme="light"] .ss-upload-section--dark .ss-upload-text {
    background: linear-gradient(135deg, #1a1a2e 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
[data-theme="light"] .ss-upload-section--dark .ss-upload-subtext { color: rgba(26, 26, 46, 0.5); }
[data-theme="light"] .ss-upload-section--dark .ss-upload-formats { color: rgba(26, 26, 46, 0.35); }
[data-theme="light"] .ss-upload-section--dark .ss-upload-consent-label { color: rgba(26, 26, 46, 0.5); }
[data-theme="light"] .ss-upload-section--dark .ss-upload-consent-label a { color: #7c3aed; }
[data-theme="light"] .ss-upload-section--dark .ss-track-count { color: rgba(26, 26, 46, 0.4); }
[data-theme="light"] .ss-upload-section--dark .ss-track-count--limit { color: rgba(180, 140, 20, 0.8); }
[data-theme="light"] .ss-upload-section--dark .ss-upload-progress { background: rgba(255, 255, 255, 0.95); }
[data-theme="light"] .ss-upload-section--dark .ss-upload-progress-title { color: #1a1a2e; }
[data-theme="light"] .ss-upload-section--dark .ss-upload-progress-text { color: rgba(26, 26, 46, 0.5); }
[data-theme="light"] .ss-upload-section--dark .ss-upload-quality-msg { color: rgba(26, 26, 46, 0.45); }

/* Auto mode — follow OS preference */
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-hero-dark {
        background-color: #e8e8f0;
    }
    [data-theme="auto"] .ss-hero-dark::before {
        background:
            radial-gradient(ellipse 1400px 900px at 50% 45%,
                rgba(140, 130, 200, 0.2) 0%,
                rgba(180, 175, 210, 0.15) 35%,
                rgba(220, 220, 232, 0.4) 65%,
                rgba(232, 232, 240, 1) 100%
            ),
            linear-gradient(135deg,
                #e8e8f0 0%,
                #e0e0ea 50%,
                #e8e8f0 100%
            );
    }
    [data-theme="auto"] .ss-hero-dark::after {
        opacity: 0.05;
    }
    [data-theme="auto"] .ss-orbital-fog {
        background: radial-gradient(
            ellipse 620px 380px at 50% 50%,
            rgba(232, 232, 240, 0.90) 0%,
            rgba(232, 232, 240, 0.60) 50%,
            transparent 100%
        );
    }
    [data-theme="auto"] .ss-hero-dark .ss-hero-title { color: #1a1a2e; }
    [data-theme="auto"] .ss-hero-dark .ss-hero-subtitle { color: rgba(26, 26, 46, 0.6); }
    [data-theme="auto"] .ss-hero-dark .ss-gradient-text { -webkit-text-fill-color: transparent; }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-zone {
        background: rgba(255, 255, 255, 0.80);
        backdrop-filter: blur(12px);
        box-shadow: 0 0 20px rgba(124, 58, 237, 0.08);
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-zone::after {
        background: rgba(255, 255, 255, 0.92);
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-zone::before {
        background: linear-gradient(270deg, #7c3aed, #a78bfa, #c4b5fd, #7c3aed);
        background-size: 300% 100%;
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-zone:hover {
        box-shadow: 0 0 30px rgba(124, 58, 237, 0.15);
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-zone.ss-drag-over {
        box-shadow: 0 0 40px rgba(124, 58, 237, 0.22);
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-text {
        background: linear-gradient(135deg, #1a1a2e 0%, #7c3aed 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-subtext { color: rgba(26, 26, 46, 0.5); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-formats { color: rgba(26, 26, 46, 0.35); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-consent-label { color: rgba(26, 26, 46, 0.5); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-consent-label a { color: #7c3aed; }
    [data-theme="auto"] .ss-upload-section--dark .ss-track-count { color: rgba(26, 26, 46, 0.4); }
    [data-theme="auto"] .ss-upload-section--dark .ss-track-count--limit { color: rgba(180, 140, 20, 0.8); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-progress { background: rgba(255, 255, 255, 0.95); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-progress-title { color: #1a1a2e; }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-progress-text { color: rgba(26, 26, 46, 0.5); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upload-quality-msg { color: rgba(26, 26, 46, 0.45); }
    [data-theme="auto"] .ss-upload-section--dark .ss-upgrade-banner {
        background: rgba(180, 120, 0, 0.12);
        border-color: rgba(180, 120, 0, 0.3);
        color: rgba(26, 26, 46, 0.8);
    }
    [data-theme="auto"] .ss-upload-section--dark .ss-upgrade-banner a { color: #b47800; }
}

/* Light mode: tablet fog override */
@media (min-width: 601px) and (max-width: 900px) {
    [data-theme="light"] .ss-orbital-fog {
        background: radial-gradient(
            ellipse 560px 360px at 50% 50%,
            rgba(232, 232, 240, 0.90) 0%,
            rgba(232, 232, 240, 0.60) 50%,
            transparent 100%
        );
    }
}
@media (min-width: 601px) and (max-width: 900px) and (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-orbital-fog {
        background: radial-gradient(
            ellipse 560px 360px at 50% 50%,
            rgba(232, 232, 240, 0.90) 0%,
            rgba(232, 232, 240, 0.60) 50%,
            transparent 100%
        );
    }
}

/* --- Dark-to-Theme Fade --- */
.ss-hero-fade {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    z-index: 11;
    pointer-events: none;
    background: linear-gradient(to bottom, transparent, var(--ss-bg));
}


/* --- Mobile Responsive --- */
@media (max-width: 600px) {
    .ss-orbital-ring-container,
    .ss-orbital-fog {
        display: none;
    }
    .ss-hero-content {
        padding: 48px 16px 32px;
    }
}

@media (min-width: 601px) and (max-width: 900px) {
    .ss-orbital-fog {
        background: radial-gradient(
            ellipse 560px 360px at 50% 50%,
            rgba(10, 10, 20, 0.90) 0%,
            rgba(10, 10, 20, 0.60) 50%,
            transparent 100%
        );
    }
}


/* ============================================================
   PLAYER PAGE — Multi-stem waveform splitter
   ============================================================ */

/* 1. Player page container */
.ss-player-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 24px 0;
}

/* Player page background gradient — animated stem-colored glow */
.ss-main--player::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse 70% 50% at 30% 20%, rgba(167, 139, 250, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 70% 30%, rgba(91, 155, 245, 0.10) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 50% 80%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #0E0E1A 0%, #111128 40%, #0d0d18 100%);
    pointer-events: none;
    animation: ss-bg-drift 20s ease-in-out infinite alternate;
}

@keyframes ss-bg-drift {
    0% {
        background-position: 0% 0%, 100% 0%, 50% 100%, 0% 0%;
    }
    50% {
        background-position: 10% 5%, 90% 10%, 45% 90%, 0% 0%;
    }
    100% {
        background-position: 5% -5%, 95% 5%, 55% 95%, 0% 0%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ss-main--player::before { animation: none; }
}

/* Light theme */
[data-theme="light"] .ss-main--player::before {
    background:
        radial-gradient(ellipse 70% 50% at 30% 20%, rgba(167, 139, 250, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 70% 30%, rgba(91, 155, 245, 0.06) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 50% 80%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, #f2f0f8 0%, #f5f5f7 100%);
}

/* Auto theme — light when system is light */
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-main--player::before {
        background:
            radial-gradient(ellipse 70% 50% at 30% 20%, rgba(167, 139, 250, 0.08) 0%, transparent 60%),
            radial-gradient(ellipse 60% 50% at 70% 30%, rgba(91, 155, 245, 0.06) 0%, transparent 55%),
            radial-gradient(ellipse 50% 40% at 50% 80%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
            linear-gradient(180deg, #f2f0f8 0%, #f5f5f7 100%);
    }
}

/* 2. Player header — two-column layout */
.ss-player-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--ss-border);
    background: var(--ss-surface);
}

.ss-player-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
    flex: 1;
}

.ss-player-header-right {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    flex-shrink: 0;
}

.ss-player-detail {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.ss-detail-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ss-text-muted);
    white-space: nowrap;
}
.ss-detail-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
    white-space: nowrap;
}

.ss-player-art {
    width: 64px;
    height: 64px;
    border-radius: var(--ss-radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}
.ss-player-art img { width: 100%; height: 100%; object-fit: cover; }
.ss-player-art-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ss-surface-hover);
    color: var(--ss-text-muted);
}

.ss-player-meta {
    flex: 1;
    min-width: 0;
}

.ss-player-title {
    font-size: clamp(16px, 3vw, 22px);
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.ss-player-subtitle {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--ss-text-muted);
}

.ss-meta-sep {
    color: var(--ss-text-muted);
    opacity: 0.5;
}

.ss-player-date {
    font-size: 13px;
    color: var(--ss-text-muted);
}

.ss-player-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--ss-text-muted);
}

.ss-player-duration {
    font-size: 13px;
    color: var(--ss-text-muted);
    font-variant-numeric: tabular-nums;
}

/* 3. Stem badge — small pill */
.ss-stem-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: rgba(110, 160, 255, 0.12);
    color: var(--ss-accent);
    border-radius: 10px;
    white-space: nowrap;
}

/* 3b. Transport bar — sticky, below player header */
.ss-transport-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 24px;
    background: var(--ss-surface);
    border-bottom: 1px solid var(--ss-border);
    position: sticky;
    top: 0;
    z-index: 90;
    min-height: 44px;
}

.ss-transport-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.ss-transport-progress {
    flex: 1;
    min-width: 0;
    padding: 0 4px;
}

.ss-transport-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Share button removed in redesign */

/* 5. Toolbar — removed (transport now in header) */
.ss-toolbar {
    display: none;
}

/* 6. Play button — 44px in toolbar */
.ss-play-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--ss-gradient);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    transition: transform 0.1s ease, box-shadow 0.15s ease;
}
.ss-play-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 0 20px var(--ss-accent-glow);
}
.ss-play-btn:active { transform: scale(0.96); }

/* 7. Toolbar time display */
.ss-toolbar-time {
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: var(--ss-mono);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    color: var(--ss-text);
    min-width: 90px;
    font-weight: 500;
}
.ss-time-sep {
    color: var(--ss-text-muted);
    opacity: 0.5;
}

/* 8. Toolbar button group */
.ss-toolbar-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 9. Toolbar icon button */
.ss-toolbar-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: transparent;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    flex-shrink: 0;
    font-family: var(--ss-font);
}
.ss-toolbar-btn:hover {
    background: var(--ss-surface-hover);
    color: var(--ss-accent);
}
.ss-toolbar-btn.active {
    color: var(--ss-accent);
    background: rgba(110, 160, 255, 0.1);
}
.ss-toolbar-btn.ss-loop-active {
    background: #f59e0b;
    color: #fff;
    border-radius: 50%;
}
.ss-toolbar-btn.ss-loop-active:hover {
    background: #d97706;
    color: #fff;
}

/* BPM readout chip */
.ss-bpm-readout {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 5px;
    background: var(--ss-white-alpha-03);
    cursor: pointer;
    transition: background 0.15s;
    flex-shrink: 0;
}
.ss-bpm-readout:hover { background: var(--ss-white-alpha-06); }
.ss-bpm-readout .ss-bpm-value {
    font-family: var(--ss-mono);
    font-variant-numeric: tabular-nums;
    font-size: 12px;
    font-weight: 500;
    color: var(--ss-text-muted);
}
.ss-bpm-readout .ss-bpm-unit {
    font-size: 9px;
    font-weight: 600;
    color: var(--ss-white-alpha-30);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Beat light indicator */
.ss-beat-light {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(110, 160, 255, 0.2);
    flex-shrink: 0;
    transition: background 0.05s ease;
}
.ss-beat-light.ss-beat-flash {
    background: var(--ss-accent);
    box-shadow: 0 0 8px var(--ss-accent-glow), 0 0 16px rgba(110, 160, 255, 0.3);
}

/* 10. Tempo group — inline in toolbar */
.ss-tempo-group {
    display: flex;
    align-items: center;
    gap: 6px;
}
.ss-tempo-icon {
    color: var(--ss-text-muted);
    flex-shrink: 0;
}

/* 11. Tempo inline slider */
.ss-tempo-slider-inline {
    width: 60px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--ss-white-alpha-10);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    flex-shrink: 0;
}
.ss-tempo-slider-inline::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ss-accent);
    cursor: pointer;
}
.ss-tempo-slider-inline::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ss-accent);
    border: none;
    cursor: pointer;
}

/* 12. Tempo label */
.ss-tempo-label {
    font-size: 12px;
    font-weight: 600;
    font-family: var(--ss-mono);
    color: var(--ss-accent);
    min-width: 32px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* 12a. BPM display & metronome */
.ss-bpm-display {
    display: flex;
    align-items: baseline;
    gap: 2px;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}
.ss-bpm-value {
    font-size: 13px;
    font-weight: 700;
    color: var(--ss-accent);
    font-variant-numeric: tabular-nums;
}
.ss-bpm-unit {
    font-size: 9px;
    color: var(--ss-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.ss-bpm-target {
    font-size: 11px;
    color: var(--ss-text-muted);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}
.ss-metronome-btn.active {
    color: var(--ss-accent);
    background: rgba(110, 160, 255, 0.15);
}

/* 12b. Key / Pitch selector */
.ss-key-group {
    display: flex;
    align-items: center;
    gap: 3px;
}
.ss-key-icon {
    color: var(--ss-text-muted);
    flex-shrink: 0;
    margin-right: 4px;
}
.ss-key-btn {
    width: 26px;
    height: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: 5px;
    color: var(--ss-text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--ss-font);
    position: relative;
    padding: 0;
    gap: 1px;
    flex-shrink: 0;
}
.ss-key-btn:hover {
    background: var(--ss-surface-hover);
    color: var(--ss-accent);
    border-color: rgba(110, 160, 255, 0.3);
}
.ss-key-btn.ss-key-active {
    background: rgba(110, 160, 255, 0.15);
    border-color: var(--ss-accent);
    color: var(--ss-accent);
}
.ss-key-label {
    font-size: 10px;
    line-height: 1;
}
.ss-key-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    display: block;
}
.ss-dot-green {
    background: #22c55e;
}
.ss-dot-amber {
    background: #f59e0b;
    animation: ss-pulse-dot 1.5s ease-in-out infinite;
}
.ss-dot-spinner {
    width: 6px;
    height: 6px;
    border: 1.5px solid var(--ss-white-alpha-30);
    border-top-color: var(--ss-accent);
    border-radius: 50%;
    animation: ss-spin-dot 0.8s linear infinite;
}

@keyframes ss-pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
@keyframes ss-spin-dot {
    to { transform: rotate(360deg); }
}

/* Transpose dropdown */
.ss-transpose-select {
    background: var(--ss-surface);
    color: var(--ss-text);
    border: 1px solid var(--ss-border);
    border-radius: 5px;
    padding: 4px 8px;
    font-family: var(--ss-font);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='8' height='5' viewBox='0 0 8 5' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0.5 0.5L4 4L7.5 0.5' stroke='%238a8a96' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    padding-right: 20px;
    min-width: 100px;
}
.ss-transpose-select:hover {
    border-color: var(--ss-accent);
}
.ss-transpose-select:focus {
    border-color: var(--ss-accent);
    box-shadow: 0 0 0 2px var(--ss-accent-glow);
}
.ss-transpose-select option {
    background: var(--ss-surface);
    color: var(--ss-text);
}
.ss-transpose-select.ss-transpose-loading {
    opacity: 0.5;
    pointer-events: none;
}
.ss-transpose-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--ss-text-muted);
    margin-left: 8px;
    animation: ss-fade-in 0.15s ease;
}
.ss-transpose-status .ss-mini-spinner {
    width: 12px;
    height: 12px;
    border: 1.5px solid var(--ss-white-alpha-10);
    border-top-color: var(--ss-accent);
    border-radius: 50%;
    animation: ss-spin-dot 0.8s linear infinite;
}

/* 13. Progress container — inline within transport bar */
.ss-progress-container,
.ss-transport-progress {
    padding: 0;
    background: transparent;
}

/* 14. Progress bar — 8px tall with bigger touch target */
.ss-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--ss-white-alpha-06);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    /* Larger touch target via padding */
}
.ss-progress-bar::before {
    content: '';
    position: absolute;
    inset: -8px 0;
}

/* Buffer bar — YouTube-style lighter bar showing how much is loaded */
.ss-progress-buffer {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--ss-white-alpha-15, rgba(255, 255, 255, 0.15));
    border-radius: 4px;
    z-index: 1;
    transition: width 0.3s ease;
}

.ss-progress-fill {
    height: 100%;
    background: var(--ss-accent);
    border-radius: 4px;
    position: relative;
    z-index: 2;
    width: 0%;
    pointer-events: none;
    transition: none;
}

.ss-progress-handle {
    position: absolute;
    top: 50%;
    left: 0%;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.15s ease;
    pointer-events: none;
}
.ss-progress-bar:hover .ss-progress-handle,
.ss-progress-bar.ss-dragging .ss-progress-handle {
    opacity: 1;
}

/* Loop markers (draggable) */
.ss-loop-start, .ss-loop-end {
    position: absolute;
    top: -6px;
    width: 4px;
    height: calc(100% + 12px);
    border-radius: 2px;
    cursor: grab;
    z-index: 5;
    touch-action: none;
}
.ss-loop-start { background: var(--ss-success); }
.ss-loop-end { background: var(--ss-error); }
.ss-loop-start::before, .ss-loop-end::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
}
.ss-loop-start::before { border-top: 5px solid var(--ss-success); }
.ss-loop-end::before { border-top: 5px solid var(--ss-error); }
.ss-loop-start:active, .ss-loop-end:active,
.ss-loop-start.ss-dragging, .ss-loop-end.ss-dragging { cursor: grabbing; }
/* Wider touch target */
.ss-loop-start::after, .ss-loop-end::after {
    content: '';
    position: absolute;
    inset: -8px -10px;
}
.ss-loop-region {
    position: absolute;
    top: 0;
    height: 100%;
    background: rgba(251, 191, 36, 0.12);
    pointer-events: none;
}

/* 15. View tabs — pill-style horizontal tab bar */
.ss-view-tabs {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 24px;
    border-bottom: 1px solid var(--ss-border);
    background: var(--ss-bg);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.ss-view-tabs::-webkit-scrollbar { display: none; }

.ss-view-tab {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--ss-text-muted);
    border-radius: 0;
    padding: 10px 16px;
    font-family: var(--ss-font);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    flex-shrink: 0;
    margin-bottom: -1px;
}
.ss-view-tab:hover {
    color: var(--ss-text);
}
.ss-view-tab-active {
    background: transparent;
    color: var(--ss-text);
    border-bottom-color: var(--ss-stem-vocals);
}

/* 16. View panel container */
.ss-view-panel {
    display: none;
    padding: 16px 24px;
    background: var(--ss-bg);
    min-height: 200px;
}
.ss-view-panel.ss-view-active {
    display: block;
}
#view-waveform.ss-view-panel {
    padding-top: 8px;
}


/* ============================================================
   STEM WAVEFORM LANES
   ============================================================ */

/* 17. Stems layout — two-column: fixed sidebar + scrollable canvases */
.ss-stems-layout {
    display: flex;
    align-items: stretch;
}
.ss-stems-sidebar {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.ss-stems-layout .ss-waveform-scroll {
    flex: 1;
    min-width: 0;
}
.ss-stems-container {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

/* 18. Individual stem lane — canvas row inside the scrollable area */
.ss-stem-lane {
    display: flex;
    align-items: stretch;
    height: 60px;
    background: var(--ss-surface);
    border: none;
    border-radius: 0 4px 4px 0;
    overflow: hidden;
    transition: opacity 0.2s ease;
}

/* Vocals lane — hero, taller */
.ss-stem-lane[data-stem-type="vocals"] {
    height: 72px;
}

/* Sidebar control block — paired with canvas row */
.ss-stem-sidebar-block {
    display: flex;
    align-items: stretch;
    height: 60px;
    background: var(--ss-surface);
    border-radius: 4px 0 0 4px;
    overflow: hidden;
    transition: opacity 0.2s ease;
}
.ss-stem-sidebar-block[data-stem-type="vocals"] {
    height: 72px;
}
.ss-stem-sidebar-block.muted {
    opacity: 0.22;
}
.ss-stem-sidebar-block.muted .ss-stem-name {
    text-decoration: line-through;
    text-decoration-color: var(--ss-white-alpha-30);
}

/* Left indicator strip */
.ss-stem-indicator {
    width: 4px;
    flex-shrink: 0;
    transition: opacity 0.2s;
}
.ss-stem-lane.muted .ss-stem-indicator { opacity: 0.3; }
.ss-stem-lane:not([data-stem-type="vocals"]):not(.ss-recording-lane) .ss-stem-indicator { opacity: 0.5; }

/* 29. Muted lane state */
.ss-stem-lane.muted {
    opacity: 0.22;
}
.ss-stem-lane.muted .ss-stem-canvas {
    filter: saturate(0.2);
}
.ss-stem-lane.muted .ss-stem-name {
    text-decoration: line-through;
    text-decoration-color: var(--ss-white-alpha-30);
}

/* 19. Stem controls sidebar */
.ss-stem-controls {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    padding: 8px 12px;
    border-right: 1px solid var(--ss-border);
    background: var(--ss-surface);
}

/* 19b. Stem top row — M, S, dot, name */
.ss-stem-top {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 19c. Stem bottom row — volume slider + pan knob */
.ss-stem-bottom {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 20. Stem label — dot + name (legacy, kept for compat) */
.ss-stem-label {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 21. Stem color dot */
.ss-stem-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
/* Color variants applied via data attribute or inline style */
.ss-stem-dot[data-stem="vocals"] { background: var(--ss-stem-vocals); }
.ss-stem-dot[data-stem="drums"] { background: var(--ss-stem-drums); }
.ss-stem-dot[data-stem="bass"] { background: var(--ss-stem-bass); }
.ss-stem-dot[data-stem="other"] { background: var(--ss-stem-other); }
.ss-stem-dot[data-stem="backing"] { background: var(--ss-stem-backing); }

/* 22. Stem name */
.ss-stem-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--ss-text);
    text-transform: capitalize;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
/* Stem name color per type */
.ss-stem-lane[data-stem-type="vocals"] .ss-stem-name { color: var(--ss-stem-vocals); }
.ss-recording-lane .ss-stem-name { color: var(--ss-stem-recording); }
.ss-stem-lane:not([data-stem-type="vocals"]):not(.ss-recording-lane) .ss-stem-name { color: var(--ss-text-muted); }

/* 23. Solo + Mute button group (legacy wrapper — buttons now inline in ss-stem-top) */
.ss-stem-buttons {
    display: flex;
    gap: 4px;
}

/* 24. Solo and Mute buttons */
.ss-solo-btn,
.ss-mute-btn {
    width: 20px;
    height: 18px;
    border-radius: 3px;
    border: none;
    background: var(--ss-white-alpha-05);
    color: var(--ss-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--ss-font);
    font-size: 9px;
    font-weight: 700;
    transition: all 0.12s ease;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}
.ss-solo-btn:hover {
    background: var(--ss-white-alpha-10);
    color: var(--ss-text);
}
.ss-mute-btn:hover {
    background: var(--ss-white-alpha-10);
    color: var(--ss-text);
}

/* 25. Solo active — yellow background */
.ss-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}
/* Per-stem solo active colors via data attribute */
.ss-stem-lane[data-stem="vocals"] .ss-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}
.ss-stem-lane[data-stem="drums"] .ss-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}
.ss-stem-lane[data-stem="bass"] .ss-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}
.ss-stem-lane[data-stem="other"] .ss-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}
.ss-stem-lane[data-stem="backing"] .ss-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}

/* 26. Mute active — red background */
.ss-mute-btn.active {
    background: rgba(239, 68, 68, 0.7);
    color: white;
}

/* 27. Stem volume — horizontal slider with gradient fill */
.ss-stem-volume {
    flex: 1;
    min-width: 0;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    background: var(--ss-white-alpha-06);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.ss-stem-volume::-webkit-slider-runnable-track {
    height: 3px;
    border-radius: 2px;
    background: transparent;
}
.ss-stem-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 7px;
    height: 7px;
    background: var(--ss-text-muted);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.15s ease;
    margin-top: -2px;
}
.ss-stem-volume::-webkit-slider-thumb:hover {
    background: var(--ss-accent);
}
.ss-stem-volume::-moz-range-track {
    height: 3px;
    border-radius: 2px;
    background: transparent;
}
.ss-stem-volume::-moz-range-thumb {
    width: 7px;
    height: 7px;
    background: var(--ss-text-muted);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}
.ss-stem-volume::-moz-range-thumb:hover {
    background: var(--ss-accent);
}

/* 28. Stem canvas — waveform rendering area */
.ss-stem-canvas {
    width: 100%;
    display: block;
    border-radius: 0 4px 4px 0;
    min-width: 0;
    height: 100%;
}
/* Per-stem canvas background tint */
.ss-stem-lane[data-stem-type="vocals"] .ss-stem-canvas { background: rgba(167, 139, 250, 0.08); }
.ss-recording-lane .ss-stem-canvas { background: rgba(248, 113, 113, 0.06); }
.ss-stem-lane:not([data-stem-type="vocals"]):not(.ss-recording-lane) .ss-stem-canvas { background: rgba(91, 155, 245, 0.05); }

/* 30. Playhead — vertical line overlay across all lanes */
.ss-playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--ss-accent);
    box-shadow: 0 0 8px var(--ss-accent-glow);
    pointer-events: none;
    z-index: 10;
    left: 0;
    transition: none;
}

/* Stems container needs relative positioning for shared playhead */
.ss-stems-container {
    position: relative;
}


/* ============================================================
   LYRICS VIEW
   ============================================================ */

.ss-lyrics-section { margin-bottom: 24px; }
.ss-lyrics-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.ss-lyrics-header .ss-section-title { margin-bottom: 0; }
.ss-lyrics-disclaimer { font-size: 11px; color: var(--ss-text); opacity: 1; margin-top: 2px; }

.ss-lyrics-display {
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius);
    padding: 24px 20px;
    position: relative;
    overflow: hidden;
}

.ss-lyrics-ready {
    text-align: center;
    color: var(--ss-text-muted);
    font-size: 14px;
    min-height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ss-lyrics-lens {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
    mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.3) 10%, black 30%, black 70%, rgba(0,0,0,0.3) 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.3) 10%, black 30%, black 70%, rgba(0,0,0,0.3) 90%, transparent 100%);
    min-height: 350px;
    padding: 16px 0;
    justify-content: center;
}

.ss-lyric-line {
    transition: all 0.3s ease;
    line-height: 1.5;
    min-height: 1.2em;
    max-width: 100%;
    word-wrap: break-word;
}
.ss-lyric-line[data-position="-2"],
.ss-lyric-line[data-position="2"] {
    font-size: 13px;
    opacity: 0.3;
    filter: blur(0.5px);
    color: var(--ss-text-muted);
}
.ss-lyric-line[data-position="-1"],
.ss-lyric-line[data-position="1"] {
    font-size: 15px;
    opacity: 0.5;
    color: var(--ss-text-muted);
}
.ss-lyric-line[data-position="0"] {
    font-size: 22px;
    font-weight: 600;
    opacity: 1;
    color: var(--ss-text);
    text-shadow: 0 0 20px var(--ss-accent-glow);
}

/* Word-level highlighting */
.ss-word { cursor: pointer; transition: color 0.15s ease; }
.ss-word.ss-sung { color: var(--ss-accent); }
.ss-word.ss-current {
    color: white;
    background: linear-gradient(135deg, rgba(110, 160, 255, 0.3), rgba(167, 139, 250, 0.3));
    border-radius: 3px;
    padding: 0 2px;
    text-shadow: 0 0 12px var(--ss-accent-glow);
}
.ss-word.ss-upcoming { color: var(--ss-text-muted); }

/* Lyrics actions bar */
.ss-lyrics-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0 0;
    gap: 12px;
}

/* === Fullscreen Lyrics === */
.ss-lyrics-display.ss-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    border-radius: 0;
    border: none;
    background: var(--ss-fullscreen-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 40px 80px;
}
.ss-fullscreen .ss-lyrics-ready { font-size: 18px; }
.ss-fullscreen .ss-lyrics-lens {
    min-height: 300px;
    gap: 10px;
}
.ss-fullscreen .ss-lyric-line[data-position="0"] { font-size: clamp(24px, 4vw, 2.5rem); }
.ss-fullscreen .ss-lyric-line[data-position="-1"],
.ss-fullscreen .ss-lyric-line[data-position="1"] { font-size: clamp(16px, 2.5vw, 1.2rem); }
.ss-fullscreen .ss-lyric-line[data-position="-2"],
.ss-fullscreen .ss-lyric-line[data-position="2"] { font-size: clamp(13px, 2vw, 1rem); }

.ss-fullscreen-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--ss-surface-overlay);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--ss-border);
}
.ss-fs-play-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--ss-gradient);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}
.ss-fs-progress {
    flex: 1;
    height: 4px;
    background: var(--ss-border);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
}
.ss-fs-progress-fill {
    height: 100%;
    background: var(--ss-accent);
    border-radius: 2px;
    width: 0;
    pointer-events: none;
}
.ss-fs-time {
    font-size: 12px;
    color: var(--ss-text-muted);
    font-variant-numeric: tabular-nums;
    min-width: 80px;
    text-align: right;
}
.ss-fs-close-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--ss-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ss-text-muted);
    flex-shrink: 0;
}
.ss-fs-loop-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--ss-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ss-text-muted);
    flex-shrink: 0;
    transition: all 0.15s;
}
.ss-fs-loop-btn:hover { border-color: var(--ss-accent); color: var(--ss-text); }
.ss-fs-loop-btn.ss-fs-loop-active { background: #f59e0b; border-color: #f59e0b; color: #fff; }
.ss-fs-loop-btn.ss-fs-loop-active:hover { background: #d97706; border-color: #d97706; color: #fff; }
.ss-fs-close-btn:hover { border-color: var(--ss-accent); color: var(--ss-text); }


/* ============================================================
   PITCH / NOTE TRACE VIEWS
   ============================================================ */

.ss-pitch-container {
    display: flex;
    flex-direction: column;
    height: 390px;
    border-radius: var(--ss-radius);
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    overflow: visible;
    position: relative;
}
.ss-pitch-canvas-wrap {
    overflow: hidden;
}
.ss-pitch-labels {
    width: 52px;
    flex-shrink: 0;
    border-right: 1px solid var(--ss-border);
}
.ss-pitch-labels canvas { width: 52px; height: 100%; display: block; }
.ss-pitch-canvas-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
}
.ss-pitch-canvas-wrap canvas { display: block; width: 100%; height: 100%; }
.ss-pitch-cursor {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--ss-accent);
    left: 30%;
    box-shadow: 0 0 8px rgba(110, 160, 255, 0.5);
    pointer-events: none;
}

/* Pitch mode toggle (Note Roll / Pitch Trace within panel) */
.ss-pitch-mode-toggle {
    display: flex;
    gap: 0;
    background: var(--ss-surface, rgba(255,255,255,0.04));
    border: 1px solid var(--ss-border);
    border-radius: 8px;
    overflow: hidden;
    width: fit-content;
    margin: 8px 12px 4px;
}
.ss-pitch-mode-btn {
    padding: 5px 14px;
    font-size: 12px;
    font-weight: 500;
    background: none;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    transition: all 0.15s;
}
.ss-pitch-mode-btn:not(:last-child) {
    border-right: 1px solid var(--ss-border);
}
.ss-pitch-mode-btn:hover { color: var(--ss-text); }
.ss-pitch-mode-btn.active {
    background: var(--ss-accent, #6366f1);
    color: #fff;
}
.ss-pitch-view-roll,
.ss-pitch-view-trace {
    display: flex;
    flex: 1;
    min-height: 0;
}
.ss-pitch-view-roll[hidden],
.ss-pitch-view-trace[hidden] {
    display: none;
}

/* Pitch Zoom */
.ss-pitch-zoom {
    display: flex;
    align-items: center;
    gap: 6px;
    position: absolute;
    top: 6px;
    right: 8px;
    z-index: 5;
    background: var(--ss-surface-overlay);
    border: 1px solid var(--ss-border);
    border-radius: 6px;
    padding: 3px 6px;
}
.ss-pitch-zoom-btn {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.15s ease;
}
.ss-pitch-zoom-btn:hover { color: var(--ss-accent); }
.ss-pitch-zoom-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--ss-text-muted);
    min-width: 22px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}


/* CTA bar removed in redesign */


/* ============================================================
   PREMIUM FEATURE CARDS (locked upsell) — kept for legacy
   ============================================================ */

.ss-premium-section { margin-bottom: 32px; }
.ss-premium-grid { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }

.ss-premium-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius-sm);
    transition: border-color 0.15s ease, background 0.15s ease;
}
.ss-premium-card:hover {
    border-color: rgba(110, 160, 255, 0.2);
    background: var(--ss-surface-hover);
}

.ss-premium-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(110, 160, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--ss-accent);
    opacity: 0.7;
}

.ss-premium-info { flex: 1; min-width: 0; }
.ss-premium-info h4 { font-size: 14px; font-weight: 600; margin-bottom: 2px; color: var(--ss-text); }
.ss-premium-info p { font-size: 12px; color: var(--ss-text-muted); line-height: 1.4; }

.ss-premium-badge {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--ss-gradient);
    color: white;
    flex-shrink: 0;
}

.ss-premium-badge-teacher {
    background: linear-gradient(135deg, #34d399 0%, #6ee7b7 100%);
}

.ss-premium-cta { text-align: center; margin-top: 16px; }
.ss-premium-subtext { font-size: 12px; color: var(--ss-text-muted); margin-top: 8px; }


/* ============================================================
   LEGACY PLAYER SECTIONS — Volume, Listen, Loop, Tempo, etc.
   ============================================================ */

/* Volume */
.ss-volume-section {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
}
.ss-volume-control { flex: 1; display: flex; align-items: center; gap: 10px; }
.ss-volume-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--ss-text-muted);
    min-width: 80px;
}
.ss-volume-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 4px;
    background: var(--ss-border);
    border-radius: 2px;
    outline: none;
}
.ss-volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--ss-accent);
    border-radius: 50%;
    cursor: pointer;
}
.ss-volume-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--ss-accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}
.ss-volume-value { font-size: 12px; color: var(--ss-text-muted); min-width: 32px; text-align: right; }

@media (max-width: 500px) {
    .ss-volume-section { flex-direction: column; gap: 12px; }
}

/* Listen Mode */
.ss-listen-section { margin-bottom: 20px; }
.ss-listen-buttons { display: flex; gap: 0; border-radius: var(--ss-radius-sm); overflow: hidden; border: 1px solid var(--ss-border); }
.ss-listen-btn {
    flex: 1;
    padding: 8px 12px;
    font-family: var(--ss-font);
    font-size: 13px;
    font-weight: 500;
    background: transparent;
    color: var(--ss-text-muted);
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    border-right: 1px solid var(--ss-border);
}
.ss-listen-btn:last-child { border-right: none; }
.ss-listen-btn:hover { background: var(--ss-surface-hover); color: var(--ss-text); }
.ss-listen-btn.ss-listen-active {
    background: var(--ss-gradient);
    color: white;
}

/* Loop Section */
.ss-loop-section { margin-bottom: 24px; }
.ss-loop-buttons { display: flex; align-items: center; gap: 10px; }
.ss-loop-times { font-size: 12px; color: var(--ss-text-muted); font-variant-numeric: tabular-nums; }

/* Tempo Section (legacy full-page layout) */
.ss-tempo-section { margin-bottom: 24px; }
.ss-tempo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.ss-tempo-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
}
.ss-tempo-title svg { color: var(--ss-accent); }
.ss-tempo-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--ss-accent);
    font-variant-numeric: tabular-nums;
}
.ss-tempo-slider-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}
.ss-tempo-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 4px;
    background: var(--ss-border);
    border-radius: 2px;
    outline: none;
}
.ss-tempo-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--ss-accent);
    border-radius: 50%;
    cursor: pointer;
}
.ss-tempo-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--ss-accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}
.ss-tempo-presets { display: flex; gap: 6px; }
.ss-tempo-preset {
    flex: 1;
    padding: 6px 0;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--ss-font);
    background: var(--ss-surface);
    color: var(--ss-text-muted);
    border: 1px solid var(--ss-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}
.ss-tempo-preset:hover {
    background: var(--ss-surface-hover);
    color: var(--ss-text);
    border-color: rgba(110, 160, 255, 0.2);
}
.ss-tempo-preset.ss-active {
    background: var(--ss-accent);
    color: #fff;
    border-color: var(--ss-accent);
}

/* Record Section (upsell) */
.ss-record-section { margin-bottom: 24px; }
.ss-record-panel {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius-sm);
}
.ss-record-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #ef4444;
}
.ss-record-info { flex: 1; min-width: 0; }
.ss-record-info h4 { font-size: 14px; font-weight: 600; color: var(--ss-text); margin-bottom: 2px; }
.ss-record-info p { font-size: 12px; color: var(--ss-text-muted); line-height: 1.4; }
.ss-record-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    background: #ef4444;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease;
    flex-shrink: 0;
    font-family: var(--ss-font);
}
.ss-record-btn:hover { background: #dc2626; }
.ss-record-btn svg { flex-shrink: 0; }

/* Download Section (upsell) */
.ss-download-section { margin-bottom: 24px; }
.ss-download-section .ss-section-subtitle {
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
    margin-bottom: 10px;
}
.ss-download-buttons { display: flex; gap: 8px; }
.ss-download-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 8px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--ss-font);
    background: var(--ss-surface);
    color: var(--ss-text-muted);
    border: 1px solid var(--ss-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
}
.ss-download-btn:hover {
    background: var(--ss-surface-hover);
    border-color: rgba(110, 160, 255, 0.2);
    color: var(--ss-text);
}
.ss-download-btn svg { flex-shrink: 0; opacity: 0.6; }
.ss-pro-tag {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 2px 5px;
    border-radius: 3px;
    background: var(--ss-gradient);
    color: white;
}
@media (max-width: 500px) {
    .ss-download-buttons { flex-direction: column; }
    .ss-record-panel { flex-direction: column; text-align: center; gap: 10px; }
}


/* ============================================================
   UPSELL MODAL
   ============================================================ */

.ss-modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--ss-black-alpha-70);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
    animation: ss-fade-in 0.2s ease;
}
@keyframes ss-fade-in { from { opacity: 0; } to { opacity: 1; } }
.ss-modal {
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: 16px;
    padding: 32px 28px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    position: relative;
    animation: ss-slide-up 0.25s ease;
}
@keyframes ss-slide-up { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.ss-modal-close {
    position: absolute;
    top: 12px;
    right: 14px;
    background: none;
    border: none;
    color: var(--ss-text-muted);
    font-size: 22px;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}
.ss-modal-close:hover { color: var(--ss-text); }
.ss-modal-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(110, 160, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--ss-accent);
}
.ss-modal-title { font-size: 20px; font-weight: 700; color: var(--ss-text); margin-bottom: 8px; }
.ss-modal-desc { font-size: 14px; color: var(--ss-text-muted); line-height: 1.5; margin-bottom: 20px; }
.ss-modal-cta {
    display: inline-block;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
}
.ss-modal-subtext { font-size: 12px; color: var(--ss-text-muted); margin-top: 10px; }
.ss-modal-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--ss-text-muted);
    margin-bottom: 20px;
    cursor: pointer;
    text-align: left;
    justify-content: center;
}
.ss-modal-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--ss-accent);
    cursor: pointer;
    flex-shrink: 0;
}
.ss-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 4px;
}
.ss-modal-progress {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}


/* ============================================================
   PROCESSING STATE
   ============================================================ */

.ss-processing-state {
    text-align: center;
    padding: 48px 24px;
}
.ss-processing-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--ss-border);
    border-top-color: var(--ss-accent);
    border-radius: 50%;
    animation: ss-spin 0.8s linear infinite;
    margin: 0 auto 16px;
}
@keyframes ss-spin { to { transform: rotate(360deg); } }
.ss-processing-title { font-size: 20px; font-weight: 600; margin-bottom: 8px; }
.ss-processing-message { font-size: 15px; color: var(--ss-accent); margin-bottom: 20px; min-height: 1.4em; }
.ss-processing-progress { width: 280px; height: 4px; background: var(--ss-border); border-radius: 2px; overflow: hidden; margin: 0 auto; }
.ss-processing-progress-fill { height: 100%; background: var(--ss-gradient); transition: width 0.5s ease; }
.ss-processing-pct { margin-top: 8px; font-size: 14px; color: var(--ss-text-muted); }
.ss-processing-quality {
    margin-top: 24px;
    padding: 16px 20px;
    background: rgba(110, 160, 255, 0.06);
    border: 1px solid rgba(110, 160, 255, 0.12);
    border-radius: var(--ss-radius-sm);
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
}
.ss-processing-quality p { font-size: 13px; color: var(--ss-text-muted); line-height: 1.5; }
.ss-processing-estimate { margin-top: 12px; font-size: 12px; color: var(--ss-text-muted); opacity: 0.7; }

/* Upload progress expanded — orbital rings */
.ss-proc-rings {
    position: relative;
    width: 96px;
    height: 96px;
    margin-bottom: 16px;
}
.ss-proc-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid transparent;
}
.ss-proc-ring--outer {
    border-top-color: var(--ss-accent);
    border-right-color: rgba(110, 160, 255, 0.3);
    animation: ss-spin 2.4s linear infinite;
}
.ss-proc-ring--mid {
    inset: 10px;
    border-bottom-color: #a78bfa;
    border-left-color: rgba(167, 139, 250, 0.3);
    animation: ss-spin 1.6s linear infinite reverse;
}
.ss-proc-ring--inner {
    inset: 20px;
    border-top-color: #c084fc;
    border-right-color: rgba(192, 132, 252, 0.25);
    animation: ss-spin 1.0s linear infinite;
}
.ss-proc-ring-core {
    position: absolute;
    inset: 30px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.35) 0%, transparent 70%);
    animation: ss-proc-core-pulse 2s ease-in-out infinite;
}
@keyframes ss-proc-core-pulse {
    0%, 100% { opacity: 0.5; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1.1); }
}

/* Progress bar shimmer */
.ss-upload-progress-shimmer {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%);
    animation: ss-shimmer 1.8s ease-in-out infinite;
}
@keyframes ss-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.ss-upload-progress-title { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.ss-upload-quality-msg { margin-top: 12px; font-size: 12px; color: var(--ss-text-muted); max-width: 320px; line-height: 1.5; }


/* ============================================================
   ERROR STATE
   ============================================================ */

.ss-error-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--ss-error);
}
.ss-error-state .ss-btn { margin-top: 16px; }


/* ============================================================
   EMBED PLAYER (iframe)
   ============================================================ */

.ss-embed-player {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--ss-surface);
    border-radius: var(--ss-radius-sm);
    padding: 12px;
}
.ss-embed-art { width: 60px; height: 60px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.ss-embed-art img { width: 100%; height: 100%; object-fit: cover; }
.ss-embed-art-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: var(--ss-surface-hover); }
.ss-embed-info { flex: 1; min-width: 0; }
.ss-embed-title { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 6px; }
.ss-embed-controls { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.ss-embed-play-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--ss-accent);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ss-embed-progress {
    flex: 1;
    height: 4px;
    background: var(--ss-border);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
}
.ss-embed-progress-fill { height: 100%; background: var(--ss-accent); border-radius: 2px; width: 0; }
.ss-embed-time { font-size: 11px; color: var(--ss-text-muted); font-variant-numeric: tabular-nums; }
.ss-embed-volumes { display: flex; gap: 12px; }
.ss-embed-vol { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--ss-text-muted); }
.ss-embed-vol input[type="range"] { width: 60px; height: 3px; }
.ss-embed-branding {
    writing-mode: vertical-lr;
    font-size: 10px;
    color: var(--ss-text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.5;
}
.ss-embed-branding:hover { opacity: 0.8; color: var(--ss-accent); }


/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet and below */
@media (max-width: 768px) {
    .ss-player-page {
        padding: 16px 16px 0;
    }

    /* Collapse two-column layout to stacked */
    .ss-stems-layout {
        flex-direction: column;
    }
    .ss-stems-sidebar {
        width: 100%;
        flex-direction: column;
        gap: 0;
    }
    .ss-stem-sidebar-block,
    .ss-tempo-sidebar-block,
    .ss-recording-sidebar {
        border-radius: 4px 4px 0 0;
        height: auto;
    }
    .ss-stem-lane,
    .ss-tempo-lane,
    .ss-recording-lane {
        border-radius: 0 0 4px 4px;
        margin-bottom: 3px;
    }

    .ss-stem-controls {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px 10px;
        padding: 8px 12px;
        border-right: none;
        border-bottom: 1px solid var(--ss-border);
    }

    .ss-stem-top {
        flex-shrink: 0;
    }

    .ss-stem-bottom {
        flex: 1;
        min-width: 100px;
    }

    .ss-stem-canvas {
        height: 60px;
        border-radius: 0 0 var(--ss-radius-sm) var(--ss-radius-sm);
    }

    .ss-player-header {
        padding: 12px 16px;
        flex-direction: column;
        align-items: flex-start;
    }

    .ss-player-header-right {
        gap: 16px;
        flex-wrap: wrap;
    }

    .ss-transport-bar {
        padding: 6px 16px;
        gap: 8px;
        flex-wrap: wrap;
    }

    .ss-transport-progress {
        order: 4;
        flex-basis: 100%;
        padding: 0;
    }

    .ss-view-tabs {
        padding: 8px 16px;
    }

    .ss-view-panel {
        padding: 12px 16px;
    }

}

/* Mobile */
@media (max-width: 500px) {
    .ss-player-page {
        padding: 12px 12px 0;
    }

    .ss-player-header {
        gap: 12px;
    }

    .ss-player-art {
        width: 48px;
        height: 48px;
    }

    .ss-player-title {
        font-size: 16px;
    }

    .ss-player-subtitle {
        flex-wrap: wrap;
    }

    .ss-player-header-right {
        display: none;
    }

    .ss-transport-bar {
        padding: 4px 12px;
        gap: 6px;
    }

    .ss-play-btn {
        width: 40px;
        height: 40px;
    }

    .ss-toolbar-time {
        font-size: 12px;
        min-width: 80px;
    }

    .ss-master-vol-group {
        display: none;
    }

    .ss-transpose-select {
        font-size: 11px;
        min-width: 80px;
    }

    .ss-reset-btn {
        display: none;
    }

    .ss-stem-controls {
        gap: 4px 8px;
    }

    .ss-stem-canvas {
        height: 50px;
    }

    .ss-stems-container {
        gap: 6px;
    }

    .ss-tempo-lane-controls {
        width: 100%;
        padding: 6px 10px;
        border-right: none;
        border-bottom: 1px solid var(--ss-border);
    }

    .ss-tempo-lane {
        height: auto;
    }

    .ss-tempo-lane .ss-stem-canvas {
        height: 30px;
    }

    .ss-view-panel {
        padding: 10px 12px;
    }
}

/* ============================================================
   PAN KNOB
   ============================================================ */

.ss-stem-pan-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
}
.ss-pan-knob {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: none;
    border: 1.5px solid var(--ss-white-alpha-10);
    position: relative;
    cursor: grab;
    flex-shrink: 0;
    transition: border-color 0.15s ease;
    touch-action: none;
}
.ss-pan-knob:hover {
    border-color: rgba(110, 160, 255, 0.4);
}
.ss-pan-knob:active {
    cursor: grabbing;
}
.ss-pan-knob::after {
    content: '';
    position: absolute;
    width: 1.5px;
    height: 4px;
    background: var(--ss-accent);
    border-radius: 1px;
    top: 2px;
    left: calc(50% - 0.75px);
}
.ss-stem-pan-label {
    font-size: 10px;
    color: var(--ss-text-muted);
    min-width: 20px;
    text-align: center;
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}

/* ============================================================
   TOOLBAR RIGHT SECTION
   ============================================================ */

.ss-toolbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ============================================================
   RESET BUTTON
   ============================================================ */

.ss-reset-btn {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    width: auto;
    padding: 4px 10px;
}

/* ============================================================
   MASTER VOLUME
   ============================================================ */

.ss-master-vol-group {
    display: flex;
    align-items: center;
    gap: 6px;
}
.ss-master-vol-group svg {
    color: var(--ss-text-muted);
    flex-shrink: 0;
}
.ss-master-vol-slider {
    width: 70px;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    background: var(--ss-white-alpha-06);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.ss-master-vol-slider::-webkit-slider-runnable-track {
    height: 3px;
    border-radius: 2px;
    background: transparent;
}
.ss-master-vol-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--ss-text-muted);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.15s ease;
    margin-top: -4.5px;
}
.ss-master-vol-slider::-webkit-slider-thumb:hover {
    background: var(--ss-accent);
}
.ss-master-vol-slider::-moz-range-track {
    height: 3px;
    border-radius: 2px;
    background: transparent;
}
.ss-master-vol-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--ss-text-muted);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}
.ss-master-vol-slider::-moz-range-thumb:hover {
    background: var(--ss-accent);
}

/* ============================================================
   RECORD STUDIO PANEL + RECORDING LANE
   ============================================================ */

@keyframes ss-record-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0); }
}
@keyframes ss-record-hero-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5), inset 0 0 0 0 rgba(239, 68, 68, 0); }
    50% { box-shadow: 0 0 0 16px rgba(239, 68, 68, 0), inset 0 0 12px rgba(239, 68, 68, 0.1); }
}
@keyframes ss-countdown-btn-pop {
    0% { transform: scale(0.5); opacity: 0; }
    15% { transform: scale(1.15); opacity: 1; }
    30% { transform: scale(1); opacity: 1; }
    80% { transform: scale(1); opacity: 1; }
    100% { transform: scale(0.85); opacity: 0; }
}
@keyframes ss-recording-dot-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Record Studio Wrap */
.ss-record-studio-wrap {
    margin-top: 16px;
}

/* Record Studio Panel */
.ss-record-studio {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.06), rgba(239, 68, 68, 0.02));
    border: 1px solid rgba(248, 113, 113, 0.2);
    border-radius: 12px;
    padding: 24px 28px 20px;
    text-align: center;
    box-shadow: 0 0 40px rgba(239, 68, 68, 0.04), inset 0 1px 0 rgba(255, 255, 255, 0.03);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.ss-record-studio:hover {
    box-shadow: 0 0 50px rgba(239, 68, 68, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.03);
    border-color: rgba(248, 113, 113, 0.3);
}
[data-theme="light"] .ss-record-studio {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.04), rgba(239, 68, 68, 0.01));
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.03), 0 1px 3px rgba(0, 0, 0, 0.04);
}
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-record-studio {
        background: linear-gradient(135deg, rgba(239, 68, 68, 0.04), rgba(239, 68, 68, 0.01));
        box-shadow: 0 0 30px rgba(239, 68, 68, 0.03), 0 1px 3px rgba(0, 0, 0, 0.04);
    }
}
.ss-record-studio--disabled {
    opacity: 0.35;
    pointer-events: none;
    position: relative;
}
.ss-record-studio--disabled::after {
    content: 'Stop practice mode to record';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--ss-text-muted);
    font-weight: 500;
    background: rgba(10, 10, 14, 0.6);
    border-radius: 12px;
    pointer-events: none;
}

/* Header row */
.ss-record-studio-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.ss-record-studio-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--ss-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

/* Audio/Video mode toggle */
.ss-record-mode-toggle {
    display: flex;
    border-radius: 6px;
    border: 1px solid var(--ss-border);
    overflow: hidden;
}
.ss-record-mode-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-font);
    color: var(--ss-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.ss-record-mode-btn:first-child {
    border-right: 1px solid var(--ss-border);
}
.ss-record-mode-btn:hover {
    background: var(--ss-white-alpha-04);
    color: var(--ss-text);
}
.ss-record-mode-btn.active {
    background: rgba(248, 113, 113, 0.12);
    color: #f87171;
}
.ss-record-mode-btn svg {
    flex-shrink: 0;
}

/* Headphone tip */
.ss-record-studio-tip {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    font-size: 11px;
    color: var(--ss-text-muted);
    white-space: nowrap;
}
.ss-record-studio-tip svg {
    flex-shrink: 0;
    opacity: 0.6;
}
.ss-record-tip-dismiss {
    background: none;
    border: none;
    color: var(--ss-text-muted);
    font-size: 15px;
    cursor: pointer;
    padding: 0 0 0 4px;
    line-height: 1;
    opacity: 0.4;
    transition: opacity 0.15s;
}
.ss-record-tip-dismiss:hover { opacity: 1; }

/* Body — centered hero button */
.ss-record-studio-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

/* Hero Record Button */
.ss-record-hero-btn {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    border: 2px solid rgba(248, 113, 113, 0.4);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.08));
    color: #f87171;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.2s ease;
    box-shadow: 0 0 24px rgba(239, 68, 68, 0.1);
}
.ss-record-hero-btn:hover {
    border-color: rgba(248, 113, 113, 0.7);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(239, 68, 68, 0.12));
    box-shadow: 0 0 32px rgba(239, 68, 68, 0.2);
    transform: scale(1.04);
}
.ss-record-hero-btn:active {
    transform: scale(0.95);
}
.ss-record-hero-btn.ss-hero-recording {
    border-color: #ef4444;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.35), rgba(239, 68, 68, 0.2));
    animation: ss-record-hero-pulse 1.5s ease-in-out infinite;
}
.ss-record-hero-btn.ss-hero-countdown {
    border-color: rgba(248, 113, 113, 0.6);
}

/* Icon inside hero */
.ss-record-hero-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}
.ss-record-hero-icon svg {
    width: 32px;
    height: 32px;
}

/* Stop icon (shown during recording) */
.ss-record-hero-icon .ss-stop-icon {
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 3px;
}

/* Countdown number in hero */
.ss-record-hero-countdown {
    position: absolute;
    font-size: 28px;
    font-weight: 700;
    color: #f87171;
    font-variant-numeric: tabular-nums;
    line-height: 1;
}
.ss-record-hero-countdown.ss-countdown-pop {
    animation: ss-countdown-btn-pop 0.9s ease forwards;
}

/* Label below button */
.ss-record-hero-label {
    font-size: 13px;
    color: var(--ss-text-muted);
    font-weight: 500;
}

/* Recording timer (replaces label during recording) */
.ss-record-hero-timer {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-mono);
    font-variant-numeric: tabular-nums;
    color: #ef4444;
}
.ss-recording-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #ef4444;
    animation: ss-recording-dot-blink 1.2s ease-in-out infinite;
}

/* Footer note */
.ss-record-studio-note {
    font-size: 12px;
    color: var(--ss-text-muted);
    opacity: 0.7;
    margin: 0;
}


/* Responsive: stack on mobile */
@media (max-width: 600px) {
    .ss-record-studio {
        padding: 20px 20px 16px;
    }
    .ss-record-studio-header {
        flex-wrap: wrap;
        gap: 8px;
    }
    .ss-record-hero-btn {
        width: 72px;
        height: 72px;
    }
    .ss-record-hero-icon svg {
        width: 28px;
        height: 28px;
    }
    .ss-record-studio-tip {
        margin-left: 0;
        order: 3;
        width: 100%;
    }
}
@media (prefers-reduced-motion: reduce) {
    .ss-record-studio,
    .ss-record-hero-btn {
        transition: none;
    }
    .ss-record-hero-btn:hover {
        transform: none;
    }
}

/* Recording sidebar block — paired with recording canvas lane */
.ss-recording-sidebar {
    height: 60px;
    margin-top: 8px;
    position: relative;
}
.ss-recording-sidebar::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 0;
    right: 100%;
    width: 100vw;
    height: 1px;
    background: var(--ss-border);
}
.ss-recording-sidebar .ss-recording-controls {
    border-right-color: rgba(248, 113, 113, 0.2);
}
.ss-recording-sidebar .ss-solo-btn.active {
    background: var(--ss-stem-recording);
    border-color: var(--ss-stem-recording);
}
.ss-recording-sidebar .ss-stem-name { color: var(--ss-stem-recording); }

.ss-recording-lane {
    border: none;
    margin-top: 8px;
    position: relative;
}
.ss-recording-lane .ss-solo-btn.active {
    background: var(--ss-stem-recording);
    border-color: var(--ss-stem-recording);
}

/* ============================================================
   TEMPO LANE — Smart beat marker track
   ============================================================ */

.ss-tempo-lane {
    height: 60px;
    background: rgba(110, 160, 255, 0.04);
    border: none;
    border-radius: 0 4px 4px 0;
    margin-top: 0;
}
.ss-tempo-lane .ss-stem-canvas {
    background: rgba(110, 160, 255, 0.02);
}

/* Tempo sidebar block — sits in the sidebar column */
.ss-tempo-sidebar-block {
    height: 60px;
    background: rgba(110, 160, 255, 0.04);
    border-radius: 4px 0 0 4px;
    display: flex;
    align-items: stretch;
    margin-top: 0;
}

/* Tempo lane sidebar controls — two-row layout to fit in 220px sidebar */
.ss-tempo-lane-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    align-content: center;
    gap: 4px 6px;
    flex: 1;
    padding: 6px 10px;
    border-right: 1px solid var(--ss-border);
    overflow: hidden;
}
.ss-tempo-row {
    display: flex;
    align-items: center;
    gap: 5px;
    width: 100%;
}

.ss-tempo-metronome-btn {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    background: transparent;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    flex-shrink: 0;
}
.ss-tempo-metronome-btn:hover {
    background: rgba(110, 160, 255, 0.1);
    color: var(--ss-accent);
}
.ss-tempo-metronome-btn.active {
    color: var(--ss-accent);
    background: rgba(110, 160, 255, 0.15);
}

.ss-tempo-bpm-group {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    min-width: 0;
}

.ss-tempo-bpm-input {
    width: 48px;
    background: var(--ss-white-alpha-05);
    border: 1px solid var(--ss-border);
    border-radius: 4px;
    color: var(--ss-accent);
    font-family: var(--ss-mono);
    font-size: 12px;
    font-weight: 600;
    text-align: center;
    padding: 2px 4px;
    font-variant-numeric: tabular-nums;
    outline: none;
    /* Hide spin buttons to save space */
    -moz-appearance: textfield;
}
.ss-tempo-bpm-input::-webkit-outer-spin-button,
.ss-tempo-bpm-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.ss-tempo-bpm-input:focus {
    border-color: var(--ss-accent);
}

.ss-tempo-bpm-label {
    font-size: 9px;
    color: var(--ss-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.ss-tempo-nudge {
    width: 22px;
    height: 20px;
    border-radius: 3px;
    background: var(--ss-white-alpha-04);
    border: 1px solid var(--ss-border);
    color: var(--ss-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    font-family: var(--ss-mono);
    transition: all 0.12s ease;
    flex-shrink: 0;
}
.ss-tempo-nudge:hover {
    background: rgba(110, 160, 255, 0.1);
    color: var(--ss-accent);
    border-color: rgba(110, 160, 255, 0.3);
}

.ss-tempo-sep {
    color: var(--ss-border);
    font-size: 10px;
    margin: 0 2px;
    flex-shrink: 0;
}

/* Tempo preset chips (when no BPM detected) */
.ss-tempo-presets-lane {
    display: flex;
    align-items: center;
    gap: 3px;
    flex: 1;
}
.ss-tempo-preset-chip {
    padding: 2px 6px;
    font-size: 10px;
    font-weight: 600;
    font-family: var(--ss-mono);
    background: var(--ss-white-alpha-04);
    color: var(--ss-text-muted);
    border: 1px solid var(--ss-border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.12s ease;
}
.ss-tempo-preset-chip:hover {
    background: rgba(110, 160, 255, 0.1);
    color: var(--ss-accent);
    border-color: rgba(110, 160, 255, 0.3);
}
.ss-tempo-preset-chip.active {
    background: rgba(110, 160, 255, 0.2);
    color: var(--ss-accent);
    border-color: var(--ss-accent);
}

/* (Recording placeholder lane — replaced by Record Studio panel) */

/* (Old prep overlay + countdown overlay — replaced by hero button countdown) */

/* Recording timer in sidebar */
.ss-recording-timer {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--ss-mono);
    font-variant-numeric: tabular-nums;
    color: #ef4444;
    white-space: nowrap;
}
.ss-recording-timer-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #ef4444;
    animation: ss-record-blink 1.2s ease-in-out infinite;
}
@keyframes ss-record-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Take toggle buttons */
.ss-take-nav {
    display: flex;
    align-items: center;
    gap: 3px;
    margin-left: auto;
}
.ss-take-btn {
    font-size: 9px;
    font-weight: 600;
    font-family: var(--ss-font);
    padding: 2px 7px;
    border-radius: 3px;
    border: 1px solid var(--ss-border);
    background: var(--ss-white-alpha-03);
    color: var(--ss-text-muted);
    cursor: pointer;
    transition: all 0.12s ease;
    white-space: nowrap;
}
.ss-take-btn:hover {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.3);
    color: #f87171;
}
.ss-take-btn.active {
    background: rgba(248, 113, 113, 0.15);
    border-color: rgba(248, 113, 113, 0.4);
    color: #f87171;
}

.ss-rerecord-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-font);
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid rgba(239, 68, 68, 0.3);
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.ss-rerecord-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.5);
}

/* Save Button */
.ss-save-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-font);
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid rgba(34, 197, 94, 0.3);
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.ss-save-btn:hover {
    background: rgba(34, 197, 94, 0.2);
    border-color: rgba(34, 197, 94, 0.5);
}
.ss-save-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.ss-save-btn--saved {
    background: rgba(34, 197, 94, 0.2);
    border-color: rgba(34, 197, 94, 0.5);
    color: #4ade80;
}

/* Recording Controls Bar — below waveform for take nav, save, re-record */
.ss-recording-controls-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 16px;
    background: var(--ss-white-alpha-02);
    border: 1px solid rgba(248, 113, 113, 0.12);
    border-radius: 6px;
    margin-top: 4px;
}
.ss-recording-controls-left {
    display: flex;
    gap: 4px;
    align-items: center;
}
.ss-recording-controls-right {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* ============================================================
   STEP INDICATOR — Record → Preview & Polish → Share
   Now embedded inside panels (no standalone background)
   ============================================================ */
.ss-step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 10px 16px 12px;
    border-bottom: 1px solid var(--ss-white-alpha-06);
    margin-bottom: 16px;
}
.ss-step {
    display: flex;
    align-items: center;
    gap: 6px;
}
.ss-step-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    font-family: var(--ss-font);
    border: 2px solid var(--ss-white-alpha-10);
    color: var(--ss-text-muted);
    background: none;
    transition: all 0.25s ease;
    flex-shrink: 0;
}
.ss-step-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--ss-text-muted);
    white-space: nowrap;
    transition: color 0.25s ease;
}
.ss-step-connector {
    width: 32px;
    height: 2px;
    background: var(--ss-white-alpha-10);
    margin: 0 8px;
    border-radius: 1px;
    transition: background 0.25s ease;
    flex-shrink: 0;
}

/* States */
.ss-step--completed .ss-step-circle {
    background: #34d399;
    border-color: #34d399;
    color: #fff;
}
.ss-step--completed .ss-step-label {
    color: #34d399;
}
.ss-step-connector--completed {
    background: #34d399;
}
.ss-step--active .ss-step-circle {
    background: #a78bfa;
    border-color: #a78bfa;
    color: #fff;
    box-shadow: 0 0 10px rgba(167, 139, 250, 0.4);
}
.ss-step--active .ss-step-label {
    color: #a78bfa;
    font-weight: 600;
}
.ss-step--pending .ss-step-circle {
    opacity: 0.5;
}
.ss-step--pending .ss-step-label {
    opacity: 0.5;
}

/* Light theme */
[data-theme="light"] .ss-step--completed .ss-step-circle {
    background: #16a34a;
    border-color: #16a34a;
}
[data-theme="light"] .ss-step--completed .ss-step-label {
    color: #16a34a;
}
[data-theme="light"] .ss-step-connector--completed {
    background: #16a34a;
}
[data-theme="light"] .ss-step--active .ss-step-circle {
    background: #7c3aed;
    border-color: #7c3aed;
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.3);
}
[data-theme="light"] .ss-step--active .ss-step-label {
    color: #7c3aed;
}

/* Mobile */
@media (max-width: 600px) {
    .ss-step-indicator {
        padding: 8px 10px 10px;
    }
    .ss-step-circle {
        width: 18px;
        height: 18px;
        font-size: 10px;
    }
    .ss-step-label {
        font-size: 10px;
    }
    .ss-step-connector {
        width: 20px;
        margin: 0 4px;
    }
}

/* ============================================================
   MIX PANEL — Premium glassmorphism (blue theme)
   ============================================================ */
.ss-mix-panel {
    margin: 10px 0 0;
    padding: 0;
    position: relative;
    border: 2px solid transparent;
    border-radius: 12px;
    background: transparent;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
    animation: ss-mix-breathe 4s ease-in-out infinite;
}

/* Animated gradient border (blue) */
.ss-mix-panel::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(270deg, #5b9bf5, #3b82f6, #6ea0ff, #5b9bf5);
    background-size: 300% 100%;
    animation: ss-gradient-shift 6s ease infinite;
    z-index: 0;
    opacity: 0.7;
    transition: opacity 0.4s ease;
}
.ss-mix-panel:hover::before {
    opacity: 0.9;
}

/* Dark inner fill (cool-dark tones) */
.ss-mix-panel::after {
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(16,24,48,0.97), rgba(12,16,32,0.97), rgba(16,20,44,0.97));
    z-index: 0;
}

/* Inner content above pseudo-elements */
.ss-mix-panel-inner {
    position: relative;
    z-index: 1;
    padding: 0 24px 20px;
}

/* Mouse-reactive glow (blue-tinted) */
.ss-mix-glow {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    background: radial-gradient(
        300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(91, 155, 245, 0.12),
        transparent 60%
    );
}
.ss-mix-panel:hover .ss-mix-glow {
    opacity: 1;
}

@keyframes ss-mix-breathe {
    0%, 100% { box-shadow: 0 0 20px rgba(91, 155, 245, 0.06); }
    50% { box-shadow: 0 0 28px rgba(91, 155, 245, 0.12); }
}

/* Entrance animation */
.ss-mix-panel--entering {
    opacity: 0;
    transform: translateY(12px);
}
.ss-mix-panel--entered {
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    opacity: 1;
    transform: translateY(0);
}

/* Light theme overrides */
[data-theme="light"] .ss-mix-panel::after {
    background: linear-gradient(135deg, rgba(235,242,255,0.98), rgba(240,245,255,0.98), rgba(235,240,252,0.98));
}
[data-theme="light"] .ss-mix-panel::before {
    opacity: 0.45;
}
[data-theme="light"] .ss-mix-glow {
    background: radial-gradient(
        300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(91, 155, 245, 0.06),
        transparent 60%
    );
}
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-mix-panel::after {
        background: linear-gradient(135deg, rgba(235,242,255,0.98), rgba(240,245,255,0.98), rgba(235,240,252,0.98));
    }
    [data-theme="auto"] .ss-mix-panel::before {
        opacity: 0.45;
    }
    [data-theme="auto"] .ss-mix-glow {
        background: radial-gradient(
            300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
            rgba(91, 155, 245, 0.06),
            transparent 60%
        );
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ss-mix-panel,
    .ss-mix-panel::before {
        animation: none;
    }
    .ss-mix-panel--entering {
        opacity: 1;
        transform: none;
    }
    .ss-mix-panel--entered {
        transition: none;
    }
}

/* --- Play/Pause Button in Mix Panel (blue accent) --- */
/* Inline action bar: Preview | Re-record | Save Performance */
.ss-mix-action-bar {
    display: flex;
    gap: 8px;
    padding: 12px 0;
    margin-bottom: 12px;
}
.ss-mix-action-bar button {
    flex: 1;
    padding: 10px 8px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-font);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    border: none;
}
.ss-mix-action-preview {
    border: 1px solid rgba(91, 155, 245, 0.5) !important;
    background: transparent;
    color: #5b9bf5;
}
.ss-mix-action-preview:hover {
    background: rgba(91, 155, 245, 0.12);
    border-color: #5b9bf5 !important;
}
.ss-mix-action-rerecord {
    background: var(--ss-white-alpha-06);
    color: var(--ss-text-muted);
}
.ss-mix-action-rerecord:hover {
    background: var(--ss-white-alpha-10);
    color: var(--ss-text);
}
.ss-mix-action-save {
    background: linear-gradient(135deg, #5b9bf5 0%, #4a8be0 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(91, 155, 245, 0.3);
}
.ss-mix-action-save:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(91, 155, 245, 0.4);
}
.ss-mix-action-save:active {
    transform: translateY(0);
}

/* Keep .ss-mix-play-btn class for beat pulse targeting */
.ss-mix-play-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Beat-synced pulse on play button */
@keyframes ss-beat-pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(91, 155, 245, 0.6); }
    50% { transform: scale(1.08); box-shadow: 0 0 16px 4px rgba(91, 155, 245, 0.4); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(91, 155, 245, 0); }
}
.ss-mix-play-btn.ss-beat-pulse {
    animation: ss-beat-pulse 0.15s ease-out;
}
@media (prefers-reduced-motion: reduce) {
    .ss-mix-play-btn.ss-beat-pulse {
        animation: none;
    }
}

/* --- Mix Panel Title & Subtitle --- */
.ss-mix-title {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ss-text-muted);
    margin-bottom: 4px;
}
.ss-mix-subtitle {
    font-size: 12px;
    font-weight: 400;
    color: var(--ss-text-muted);
    margin-bottom: 16px;
    opacity: 0.7;
}

/* --- DAW Mixer Section --- */
.ss-mixer-section {
    margin-bottom: 16px;
}

/* Tab switcher: Basic Mix | Full Mixer */
.ss-mixer-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 12px;
    background: var(--ss-white-alpha-03);
    border-radius: 6px;
    padding: 2px;
}
.ss-mixer-tab {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--ss-font);
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    background: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}
.ss-mixer-tab:hover {
    color: var(--ss-text-2);
}
.ss-mixer-tab.active {
    background: rgba(91, 155, 245, 0.15);
    color: #5b9bf5;
    font-weight: 700;
}
.ss-mixer-mode-panel {
    padding: 4px 0;
}

/* Basic Mix — single balance slider */
.ss-basic-mix {
    padding: 8px 0;
}
.ss-basic-mix-labels {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    font-weight: 600;
    color: #5b9bf5;
    margin-bottom: 8px;
    padding: 0 2px;
}
.ss-basic-mix-slider-wrap {
    position: relative;
    padding: 4px 0;
}
.ss-basic-mix-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}
.ss-basic-mix-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #5b9bf5;
    cursor: pointer;
    box-shadow: 0 0 8px rgba(91, 155, 245, 0.4);
    transition: box-shadow 0.15s ease;
}
.ss-basic-mix-slider::-webkit-slider-thumb:hover {
    box-shadow: 0 0 14px rgba(91, 155, 245, 0.6);
}
.ss-basic-mix-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #5b9bf5;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 8px rgba(91, 155, 245, 0.4);
}
.ss-basic-mix-center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 12px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 1px;
    pointer-events: none;
}

/* Channel strip — mirrors sidebar: M S dot name / fader dB */
.ss-mixer-channel {
    margin-bottom: 10px;
}
.ss-mixer-ch-top {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 4px;
}
.ss-mixer-ch-bottom {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* M and S buttons (matching sidebar style) */
.ss-mixer-mute-btn,
.ss-mixer-solo-btn {
    width: 20px;
    height: 18px;
    border-radius: 3px;
    border: 1px solid var(--ss-white-alpha-08);
    background: var(--ss-white-alpha-03);
    color: var(--ss-text-muted);
    font-size: 9px;
    font-weight: 700;
    font-family: var(--ss-font);
    cursor: pointer;
    transition: all 0.12s ease;
    flex-shrink: 0;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.02em;
}
.ss-mixer-mute-btn:hover,
.ss-mixer-solo-btn:hover {
    background: var(--ss-white-alpha-10);
    color: var(--ss-text);
}
.ss-mixer-mute-btn.active {
    background: rgba(239, 68, 68, 0.7);
    color: white;
}
.ss-mixer-solo-btn.active {
    background: rgba(250, 204, 21, 0.7);
    color: #000;
}

/* Channel color dot */
.ss-mixer-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Channel name */
.ss-mixer-ch-name {
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Fader */
.ss-mixer-fader {
    flex: 1;
    min-width: 0;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    background: var(--ss-white-alpha-06);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.ss-mixer-fader::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ss-text-muted);
    cursor: pointer;
    transition: background 0.15s ease;
}
.ss-mixer-fader::-webkit-slider-thumb:hover {
    background: #5b9bf5;
}
.ss-mixer-fader::-moz-range-thumb {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ss-text-muted);
    cursor: pointer;
    border: none;
}
.ss-mixer-fader::-moz-range-thumb:hover {
    background: #5b9bf5;
}

/* dB readout */
.ss-mixer-db {
    font-size: 10px;
    font-family: var(--ss-mono);
    color: var(--ss-text-muted);
    min-width: 36px;
    text-align: right;
    flex-shrink: 0;
}

/* Video preview in mix panel */
.ss-mix-video-wrap {
    margin: 12px 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(91, 155, 245, 0.2);
}
.ss-mix-video-wrap video {
    width: 100%;
    display: block;
    border-radius: 12px;
    max-height: 240px;
    object-fit: contain;
    background: #000;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    .ss-mix-panel-inner {
        padding: 0 14px 14px;
    }
    .ss-mix-action-bar {
        gap: 6px;
    }
    .ss-mix-action-bar button {
        font-size: 11px;
        padding: 8px 4px;
        gap: 4px;
    }
    .ss-mixer-tab {
        font-size: 13px;
        padding: 8px 14px;
    }
}

/* Sync Controls (in recording controls bar + performance page) */
.ss-sync-controls,
.ss-sync-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    max-width: 260px;
}
.ss-sync-bar {
    padding: 6px 16px;
    background: var(--ss-white-alpha-02);
    border: 1px solid rgba(248, 113, 113, 0.12);
    border-radius: 6px;
    margin-bottom: 4px;
}
.ss-sync-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--ss-text-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}
.ss-sync-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: var(--ss-white-alpha-08);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.ss-sync-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--ss-stem-recording, #f87171);
    cursor: pointer;
    border: 2px solid var(--ss-bg-1);
}
.ss-sync-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--ss-stem-recording, #f87171);
    cursor: pointer;
    border: 2px solid var(--ss-bg-1);
}
.ss-sync-value {
    font-size: 11px;
    font-variant-numeric: tabular-nums;
    color: var(--ss-text-2);
    min-width: 42px;
    text-align: right;
}

/* (Old video mode toggle — moved into Record Studio panel) */

/* Video PiP Preview — fixed position so it persists across tab switches */
.ss-video-pip {
    position: fixed;
    bottom: 16px;
    right: 16px;
    width: 160px;
    height: 120px;
    border-radius: 8px;
    border: 2px solid rgba(239, 68, 68, 0.6);
    object-fit: cover;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
    pointer-events: none;
}
@media (max-width: 600px) {
    .ss-video-pip {
        width: 110px;
        height: 82px;
        bottom: 10px;
        right: 10px;
    }
}

/* ============================================================
   SHARE PANEL (Performance page + Player page)
   ============================================================ */
.ss-share-panel {
    padding: 24px 20px;
    background: var(--ss-white-alpha-03);
    border: 1px solid var(--ss-white-alpha-08);
    border-radius: 12px;
    margin: 24px 0 8px;
    text-align: center;
}
.ss-share-panel--player {
    margin: 10px 0 0;
    padding: 0;
    position: relative;
    border: 2px solid transparent;
    background: transparent;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
    animation: ss-share-breathe 4s ease-in-out infinite;
}

/* Animated gradient border */
.ss-share-panel--player::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(270deg, #667eea, #7c3aed, #a78bfa, #667eea);
    background-size: 300% 100%;
    animation: ss-gradient-shift 6s ease infinite;
    z-index: 0;
    opacity: 0.7;
    transition: opacity 0.4s ease;
}
.ss-share-panel--player:hover::before {
    opacity: 0.9;
}

/* Rich inner fill */
.ss-share-panel--player::after {
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(30,20,60,0.97), rgba(16,16,35,0.97), rgba(20,16,50,0.97));
    z-index: 0;
}

/* Inner content above pseudo-elements */
.ss-share-panel-inner {
    position: relative;
    z-index: 1;
    padding: 0 24px 20px;
}

/* Mouse-reactive glow */
.ss-share-glow {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    background: radial-gradient(
        300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(124, 58, 237, 0.12),
        transparent 60%
    );
}
.ss-share-panel--player:hover .ss-share-glow {
    opacity: 1;
}

/* Light theme share panel */
[data-theme="light"] .ss-share-panel--player::after {
    background: linear-gradient(135deg, rgba(240,235,255,0.98), rgba(245,242,255,0.98), rgba(238,235,252,0.98));
}
[data-theme="light"] .ss-share-panel--player::before {
    opacity: 0.45;
}
[data-theme="light"] .ss-share-heading {
    color: #1a1a2e;
}
[data-theme="light"] .ss-share-btn--copy-hero {
    box-shadow: 0 4px 15px rgba(124,58,237,0.2);
}
[data-theme="light"] .ss-share-btn--copy-hero:hover {
    box-shadow: 0 8px 24px rgba(124,58,237,0.25);
}
[data-theme="light"] .ss-share-glow {
    background: radial-gradient(
        300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(124, 58, 237, 0.06),
        transparent 60%
    );
}

/* Auto theme — light when system is light */
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-share-panel--player::after {
        background: linear-gradient(135deg, rgba(240,235,255,0.98), rgba(245,242,255,0.98), rgba(238,235,252,0.98));
    }
    [data-theme="auto"] .ss-share-panel--player::before {
        opacity: 0.45;
    }
    [data-theme="auto"] .ss-share-heading {
        color: #1a1a2e;
    }
    [data-theme="auto"] .ss-share-btn--copy-hero {
        box-shadow: 0 4px 15px rgba(124,58,237,0.2);
    }
    [data-theme="auto"] .ss-share-btn--copy-hero:hover {
        box-shadow: 0 8px 24px rgba(124,58,237,0.25);
    }
    [data-theme="auto"] .ss-share-glow {
        background: radial-gradient(
            300px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
            rgba(124, 58, 237, 0.06),
            transparent 60%
        );
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ss-share-panel--player,
    .ss-share-panel--player::before {
        animation: none;
    }
    .ss-share-panel--entering {
        opacity: 1;
        transform: none;
    }
    .ss-share-panel--entered {
        transition: none;
    }
}

@keyframes ss-share-breathe {
    0%, 100% { box-shadow: 0 0 20px rgba(124, 58, 237, 0.06); }
    50% { box-shadow: 0 0 28px rgba(124, 58, 237, 0.12); }
}
.ss-share-heading {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 16px;
    letter-spacing: -0.01em;
}
.ss-share-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.ss-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-font);
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--ss-white-alpha-12);
    background: var(--ss-white-alpha-06);
    color: var(--ss-text);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}
.ss-share-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--ss-black-alpha-30);
}
.ss-share-btn--whatsapp {
    border-color: rgba(37, 211, 102, 0.3);
    background: rgba(37, 211, 102, 0.1);
}
.ss-share-btn--whatsapp:hover {
    background: rgba(37, 211, 102, 0.2);
    border-color: rgba(37, 211, 102, 0.5);
}
.ss-share-btn--facebook {
    border-color: rgba(24, 119, 242, 0.3);
    background: rgba(24, 119, 242, 0.1);
}
.ss-share-btn--facebook:hover {
    background: rgba(24, 119, 242, 0.2);
    border-color: rgba(24, 119, 242, 0.5);
}
.ss-share-btn--twitter {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.06);
}
.ss-share-btn--twitter:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
}
.ss-share-btn--email {
    border-color: rgba(156, 163, 175, 0.25);
    background: rgba(156, 163, 175, 0.08);
}
.ss-share-btn--email:hover {
    background: rgba(156, 163, 175, 0.15);
    border-color: rgba(156, 163, 175, 0.4);
}
.ss-share-btn--copy {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    justify-content: center;
    font-size: 13px;
    padding: 10px 16px;
    border-color: rgba(168, 85, 247, 0.3);
    background: rgba(168, 85, 247, 0.08);
}
.ss-share-btn--copy:hover {
    background: rgba(168, 85, 247, 0.15);
    border-color: rgba(168, 85, 247, 0.5);
}

/* Hero copy button */
.ss-share-btn--copy-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 380px;
    margin: 0 auto 16px;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 700;
    font-family: var(--ss-font);
    color: #fff;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #7c3aed, #6366f1, #4f46e5);
    box-shadow: 0 4px 15px rgba(124,58,237,0.3);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
}
.ss-share-btn--copy-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}
.ss-share-btn--copy-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124,58,237,0.4);
}
.ss-share-btn--copy-hero:hover::before {
    opacity: 1;
}
.ss-share-btn--copy-hero:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}
.ss-share-btn--copy-hero.ss-share-btn--copied {
    background: linear-gradient(135deg, #059669, #10b981, #34d399);
    box-shadow: 0 4px 15px rgba(16,185,129,0.3);
}

/* Icon-only social buttons */
.ss-share-btn--social {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    padding: 0;
    font-size: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}
.ss-share-social-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
}
.ss-share-social-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ss-text-muted);
}
.ss-share-social-icons {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Entrance animation */
.ss-share-panel--entering {
    opacity: 0;
    transform: translateY(12px);
}
.ss-share-panel--entered {
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    opacity: 1;
    transform: translateY(0);
}

/* OG Card Preview */
.ss-share-preview {
    margin-top: 16px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}
.ss-share-preview-img {
    width: 100%;
    border-radius: 8px;
    display: block;
}
.ss-share-preview-fallback {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--ss-white-alpha-04);
    border: 1px solid var(--ss-white-alpha-08);
    border-radius: 8px;
}
.ss-share-preview-thumb {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
}
.ss-share-preview-gradient {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #a855f7 0%, #6366f1 50%, #3b82f6 100%);
}
.ss-share-preview-info {
    text-align: left;
    min-width: 0;
}
.ss-share-preview-title {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ss-share-preview-desc {
    display: block;
    font-size: 11px;
    color: var(--ss-text-muted);
    margin-top: 2px;
}

/* Share URL preview (player page) */
.ss-share-url-preview {
    font-size: 11px;
    color: var(--ss-text-muted);
    margin-top: 8px;
    font-family: var(--ss-mono);
    word-break: break-all;
}

/* Performance page footer (report link) */
.ss-performance-footer {
    text-align: center;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--ss-white-alpha-06);
}

/* ============================================================
   MUSIC ANALYSIS FEATURES
   ============================================================ */

/* Key and range values in header details */
#key-badge,
#range-badge {
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
    white-space: nowrap;
}

/* Section markers removed in redesign */

/* Chord timeline */
.ss-chords-display {
    padding: 12px;
}
.ss-chord-timeline {
    display: flex;
    overflow: hidden;
    width: 100%;
    padding: 8px 0;
}
.ss-chord-block {
    padding: 8px 4px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
    border: 1px solid;
    border-radius: 6px;
    background: rgba(107, 114, 128, 0.08);
    cursor: default;
    transition: all 0.15s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.ss-chord-block .ss-chord-dur {
    font-size: 10px;
    font-weight: 400;
    color: var(--ss-text-muted);
    margin-top: 2px;
}
.ss-chord-block.ss-chord-active {
    transform: scale(1.05);
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.15);
    opacity: 1;
}
.ss-chords-loading {
    text-align: center;
    padding: 40px 20px;
    color: var(--ss-text-muted);
}

/* Chords & Chart content containers (matching lyrics white bg) */
.ss-chords-display,
#view-chart .ss-chord-chart {
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius);
}

/* Chord toolbar */
.ss-chord-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px 4px;
    border-bottom: 1px solid var(--ss-border);
    margin-bottom: 4px;
}
.ss-chord-shift-btns {
    display: flex;
    gap: 4px;
}
.ss-chord-shift-btn {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 500;
    color: var(--ss-text-muted);
    background: none;
    border: 1px solid var(--ss-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}
.ss-chord-shift-btn:hover {
    color: var(--ss-text);
    border-color: var(--ss-text-muted);
    background: var(--ss-surface-hover, rgba(255,255,255,0.05));
}
.ss-chord-shift-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.ss-chord-settings-btn {
    padding: 4px;
    background: none;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s;
}
.ss-chord-settings-btn:hover { color: var(--ss-text); background: var(--ss-surface-hover, rgba(255,255,255,0.05)); }

/* Chord settings panel (redesigned — vertical dropdown) */
.ss-chord-settings {
    padding: 12px;
    border-bottom: 1px solid var(--ss-border);
    display: flex;
    flex-direction: column;
    gap: 0;
}
.ss-chord-settings[hidden] {
    display: none;
}
.ss-chord-setting-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 10px;
}
.ss-chord-setting-group:last-child { margin-bottom: 0; }
.ss-chord-setting-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
}
.ss-chord-setting-row label {
    color: var(--ss-text-muted);
    white-space: nowrap;
    min-width: 90px;
    font-weight: 500;
}
.ss-chord-setting-btns {
    display: flex;
    gap: 0;
    background: var(--ss-surface, rgba(255,255,255,0.04));
    border: 1px solid var(--ss-border);
    border-radius: 8px;
    overflow: hidden;
}
.ss-chord-setting-btns button {
    padding: 5px 10px;
    font-size: 11px;
    font-weight: 500;
    background: none;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    transition: all 0.15s;
    border-right: 1px solid var(--ss-border);
}
.ss-chord-setting-btns button:last-child { border-right: none; }
.ss-chord-setting-btns button:hover { color: var(--ss-text); background: rgba(255,255,255,0.05); }
.ss-chord-setting-btns button.active {
    background: var(--ss-accent, #6366f1);
    color: #fff;
}

/* Chord degree label (timeline) */
.ss-chord-degree {
    font-size: 10px;
    font-weight: 400;
    color: var(--ss-text-muted);
    margin-top: 1px;
}

/* === GRID VIEW === */
.ss-chord-grid {
    padding: 4px 12px 12px;
    overflow-x: auto;
}
/* Grid: horizontal bars layout */
.ss-grid-wrapper {
    padding: 8px 12px;
    font-size: 13px;
    overflow-x: auto;
}
.ss-grid-line {
    display: flex;
    gap: 0;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--ss-border, rgba(255,255,255,0.08));
    padding-bottom: 10px;
}
.ss-grid-bar {
    flex: 1;
    min-width: 0;
    border-left: 1px solid var(--ss-border, rgba(255,255,255,0.12));
}
.ss-grid-bar:first-child {
    border-left: none;
}
.ss-grid-bar-label {
    font-size: 10px;
    color: var(--ss-text-muted);
    font-weight: 500;
    padding: 0 6px 2px;
    opacity: 0.6;
}
.ss-grid-beats {
    display: flex;
}
.ss-grid-cell {
    flex: 1;
    padding: 6px 2px;
    text-align: center;
    min-height: 40px;
    border-left: 2px solid transparent;
    transition: background 0.15s;
    cursor: pointer;
    position: relative;
}
.ss-grid-cell-filled {
    border-left-color: var(--cell-accent, #6b7280);
}
.ss-grid-cell:hover {
    background: var(--ss-surface-hover, rgba(255,255,255,0.04));
}
.ss-grid-cell-active {
    background: rgba(99, 102, 241, 0.15) !important;
    box-shadow: inset 0 0 0 1px var(--ss-accent, #6366f1);
    border-radius: 2px;
}
.ss-grid-chord-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--ss-text);
    line-height: 1.3;
    white-space: nowrap;
}
.ss-grid-chord-degree {
    font-size: 10px;
    color: var(--ss-text-muted);
    font-weight: 400;
}
/* Anacrusis (pickup) bar */
.ss-grid-bar-anacrusis {
    flex: 0 0 auto;
    max-width: 25%;
    opacity: 0.7;
    border-left: 2px dashed var(--ss-border, rgba(255,255,255,0.15));
}
.ss-grid-bar-anacrusis .ss-grid-bar-label {
    font-style: italic;
}
/* Beat number dots */
.ss-grid-beat-dot {
    position: absolute;
    bottom: 1px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 8px;
    color: var(--ss-text-muted);
    opacity: 0.3;
}

/* Chart toolbar */
.ss-chart-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
}
.ss-chart-follow-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 500;
    color: var(--ss-text-muted);
    background: none;
    border: 1px solid var(--ss-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}
.ss-chart-follow-btn:hover {
    color: var(--ss-text);
    border-color: var(--ss-text-muted);
}
.ss-chart-follow-btn.active {
    color: #fff;
    background: var(--ss-accent, #6366f1);
    border-color: var(--ss-accent, #6366f1);
}

/* Shift blocked animation */
.ss-chord-shift-blocked {
    animation: shiftBlocked 0.4s ease;
}
@keyframes shiftBlocked {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-2px); }
    40% { transform: translateX(2px); }
    60% { transform: translateX(-1px); }
    80% { transform: translateX(1px); }
}

/* === CHART VIEW (lyrics + chords) === */
.ss-chord-chart {
    padding: 12px 16px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
    overflow-y: auto;
    max-height: 500px;
    scroll-behavior: smooth;
}
.ss-chart-section {
    font-weight: 700;
    color: var(--ss-accent, #6366f1);
    margin: 16px 0 4px;
    font-size: 13px;
    text-transform: capitalize;
}
.ss-chart-section:first-child { margin-top: 0; }
.ss-chart-line {
    margin-bottom: 4px;
    padding: 2px 4px;
    border-radius: 4px;
    transition: background 0.15s;
    cursor: pointer;
}
.ss-chart-line-active {
    background: rgba(99, 102, 241, 0.08);
}
.ss-chart-chord-line {
    position: relative;
    height: 20px;
    white-space: nowrap;
    color: var(--ss-accent, #6366f1);
    font-weight: 600;
    font-size: 13px;
}
.ss-chart-chord {
    position: absolute;
    top: 0;
    cursor: pointer;
    transition: color 0.15s;
}
.ss-chart-chord:hover { text-decoration: underline; }
.ss-chart-lyric-line {
    color: var(--ss-text);
    white-space: pre-wrap;
}

/* Responsive: stack settings on mobile */
@media (max-width: 640px) {
    .ss-chord-toolbar { flex-wrap: wrap; gap: 6px; }
    .ss-chord-setting-row { flex-direction: column; align-items: flex-start; gap: 4px; }
    .ss-chord-setting-row label { min-width: auto; }
    .ss-chord-chart { font-size: 12px; max-height: 400px; }
    .ss-grid-wrapper { font-size: 11px; padding: 6px 8px; }
    .ss-grid-chord-name { font-size: 12px; }
    .ss-grid-line { flex-wrap: wrap; }
    .ss-grid-bar { min-width: 45%; }
}

/* Practice mode panel */
.ss-practice-panel {
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: 8px;
    padding: 10px 16px;
    margin: 0 0 8px;
}
.ss-practice-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--ss-text-muted);
}
.ss-practice-label {
    font-weight: 400;
    color: var(--ss-muted);
    font-size: 12px;
    letter-spacing: 0;
}
.ss-practice-slider {
    width: 80px;
    accent-color: var(--ss-accent);
}
.ss-practice-value {
    font-variant-numeric: tabular-nums;
    min-width: 32px;
}
.ss-practice-select {
    background: var(--ss-bg);
    color: var(--ss-text);
    border: 1px solid var(--ss-border);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
}
.ss-practice-status {
    font-weight: 600;
    color: var(--ss-accent);
    font-variant-numeric: tabular-nums;
}

/* ============================================================
   EXPORT VIEW
   ============================================================ */

.ss-export-sections {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.ss-export-section {
    padding: 16px;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius-sm);
}
.ss-export-heading {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--ss-text);
}
.ss-export-desc {
    font-size: 12px;
    color: var(--ss-text-muted);
    margin-bottom: 12px;
    line-height: 1.4;
}
.ss-export-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 8px;
    margin-bottom: 4px;
}
.ss-export-stem-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    background: var(--ss-white-alpha-02);
    border: 1px solid var(--ss-border);
    border-radius: 6px;
}
.ss-export-stem-name {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--ss-text);
    text-transform: capitalize;
}
.ss-export-stem-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.ss-export-dl-btn {
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--ss-font);
    background: rgba(110, 160, 255, 0.08);
    color: var(--ss-accent);
    border: 1px solid rgba(110, 160, 255, 0.2);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.12s ease;
    flex-shrink: 0;
}
.ss-export-dl-btn:hover {
    background: rgba(110, 160, 255, 0.15);
    border-color: var(--ss-accent);
}
.ss-export-harmony-btns {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Primary export section — subtle highlight */
.ss-export-section--primary {
    border-color: rgba(110, 160, 255, 0.2);
    background: rgba(110, 160, 255, 0.04);
}
.ss-export-mix-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
#export-video-mix-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Coming soon sections — dimmed */
.ss-export-section--coming-soon {
    opacity: 0.6;
}
.ss-export-section--coming-soon .ss-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* Coming soon badge */
.ss-coming-soon-badge {
    display: inline-block;
    padding: 1px 8px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    background: var(--ss-white-alpha-06);
    color: var(--ss-text-muted);
    border-radius: 10px;
    vertical-align: middle;
    margin-left: 6px;
}

@media (max-width: 500px) {
    .ss-export-grid {
        grid-template-columns: 1fr;
    }
    .ss-export-harmony-btns {
        flex-direction: column;
    }
}

/* Harmony dropdown */
.ss-harmony-group {
    position: relative;
}
.ss-harmony-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: var(--ss-surface);
    border: 1px solid var(--ss-border);
    border-radius: 8px;
    padding: 4px;
    z-index: 20;
    min-width: 140px;
    box-shadow: 0 4px 12px var(--ss-black-alpha-30);
}
.ss-harmony-option {
    display: block;
    width: 100%;
    padding: 8px 12px;
    text-align: left;
    background: none;
    border: none;
    color: var(--ss-text);
    font-size: 13px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.1s;
}
.ss-harmony-option:hover {
    background: var(--ss-white-alpha-08);
}

/* ============================================================
   WAVEFORM ZOOM
   ============================================================ */

.ss-waveform-zoom {
    display: flex;
    align-items: center;
    gap: 4px;
    position: absolute;
    top: 8px;
    right: 12px;
    z-index: 10;
    background: var(--ss-surface-overlay);
    border: 1px solid var(--ss-border);
    border-radius: 6px;
    padding: 3px 6px;
}

#view-waveform {
    position: relative;
}

.ss-waveform-zoom-btn {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--ss-text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.12s ease;
}
.ss-waveform-zoom-btn:hover {
    background: rgba(110, 160, 255, 0.15);
    color: var(--ss-accent);
}

.ss-waveform-zoom-label {
    font-size: 11px;
    font-weight: 600;
    font-family: var(--ss-mono);
    color: var(--ss-text);
    min-width: 22px;
    text-align: center;
}

.ss-waveform-scroll {
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--ss-border) transparent;
}
.ss-waveform-scroll::-webkit-scrollbar {
    height: 6px;
}
.ss-waveform-scroll::-webkit-scrollbar-track {
    background: transparent;
}
.ss-waveform-scroll::-webkit-scrollbar-thumb {
    background: var(--ss-border);
    border-radius: 3px;
}

/* Landing page responsive */
@media (max-width: 600px) {
    .ss-main { padding: 24px 16px 60px; }
    .ss-download-btns, .ss-share-btns { flex-direction: column; }
    .ss-download-btns .ss-btn, .ss-share-btns .ss-btn { width: 100%; justify-content: center; }
    .ss-practice-controls { font-size: 11px; gap: 6px; }
    .ss-practice-slider { width: 60px; }

    /* Share panel responsive */
    .ss-share-buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .ss-share-btn {
        font-size: 12px;
        padding: 8px 12px;
        justify-content: center;
    }
    .ss-share-btn--copy {
        max-width: 100%;
    }
    .ss-share-btn--copy-hero {
        max-width: 100%;
        font-size: 14px;
    }
    .ss-share-btn--social {
        width: 36px;
        height: 36px;
    }
    .ss-share-btn--social svg {
        width: 18px;
        height: 18px;
    }
    .ss-share-panel {
        padding: 16px 14px;
        margin: 16px 0 8px;
    }
    .ss-share-panel-inner {
        padding: 0 16px 16px;
    }
    .ss-share-heading {
        font-size: 15px;
    }
    .ss-recording-controls-bar {
        padding: 6px 10px;
        flex-wrap: wrap;
        gap: 6px;
    }
}


/* ============================================================
   LEGAL PAGES
   ============================================================ */

/* Legal page wrapper */
.ss-legal-page {
    max-width: 780px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}
.ss-legal-page h1 {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}
.ss-legal-page .ss-legal-updated {
    font-size: 13px;
    color: var(--ss-text-muted);
    margin-bottom: 40px;
}
.ss-legal-page h2 {
    font-size: 20px;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 12px;
    color: var(--ss-text);
}
.ss-legal-page h3 {
    font-size: 16px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 8px;
}
.ss-legal-page p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--ss-text-muted);
    margin-bottom: 16px;
}
.ss-legal-page ul, .ss-legal-page ol {
    margin: 0 0 16px 24px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--ss-text-muted);
}
.ss-legal-page li {
    margin-bottom: 6px;
}
.ss-legal-page strong {
    color: var(--ss-text);
    font-weight: 600;
}
.ss-legal-page a {
    color: var(--ss-accent);
}
.ss-legal-page a:hover {
    color: var(--ss-accent-hover);
    text-decoration: underline;
}
.ss-legal-page table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    font-size: 14px;
}
.ss-legal-page th,
.ss-legal-page td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--ss-border);
    color: var(--ss-text-muted);
}
.ss-legal-page th {
    color: var(--ss-text);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Upload consent checkbox */
.ss-upload-consent-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: var(--ss-text-muted);
    margin-top: 12px;
    cursor: pointer;
    user-select: none;
}
.ss-upload-consent-label a {
    color: var(--ss-accent);
}
.ss-consent-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--ss-accent);
    cursor: pointer;
    flex-shrink: 0;
}
.ss-consent-highlight {
    outline: 2px solid var(--ss-error);
    outline-offset: 4px;
    border-radius: 4px;
    animation: ss-consent-shake 0.4s ease;
}
@keyframes ss-consent-shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

/* Footer legal links */
.ss-footer-links {
    margin-top: 8px;
    font-size: 12px;
}
.ss-footer-links a {
    color: var(--ss-text-muted);
    transition: color 0.15s ease;
}
.ss-footer-links a:hover {
    color: var(--ss-accent);
}
.ss-footer-link-sep {
    margin: 0 8px;
    opacity: 0.4;
}

/* Player footer — report copyright link */
.ss-player-footer-legal {
    text-align: center;
    padding: 24px 0 8px;
    margin-top: 16px;
}
.ss-report-link {
    font-size: 12px;
    color: var(--ss-text-muted);
    opacity: 0.5;
    transition: opacity 0.15s ease, color 0.15s ease;
}
.ss-report-link:hover {
    opacity: 1;
    color: var(--ss-accent);
}

/* Report popover */
.ss-report-wrap {
    position: relative;
    display: inline-block;
}
.ss-report-popover {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    width: 260px;
    background: var(--ss-surface);
    border: 1px solid var(--ss-white-alpha-10);
    border-radius: var(--ss-radius-sm);
    padding: 16px;
    z-index: 100;
    box-shadow: 0 8px 32px var(--ss-black-alpha-50);
}
.ss-report-popover[hidden] { display: none !important; }
.ss-report-popover-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--ss-text);
    margin-bottom: 10px;
}
.ss-report-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}
.ss-report-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--ss-text-muted);
    padding: 4px 0;
    transition: color 0.15s ease;
}
.ss-report-option:hover { color: var(--ss-text); }
.ss-report-option input[type="radio"] {
    accent-color: var(--ss-accent);
    width: 14px;
    height: 14px;
    margin: 0;
}
.ss-report-details {
    width: 100%;
    background: var(--ss-white-alpha-04);
    border: 1px solid var(--ss-white-alpha-08);
    border-radius: 6px;
    color: var(--ss-text);
    font-family: var(--ss-font);
    font-size: 12px;
    padding: 8px;
    resize: vertical;
    min-height: 48px;
    max-height: 120px;
    margin-bottom: 10px;
}
.ss-report-details::placeholder { color: var(--ss-text-muted); opacity: 0.5; }
.ss-report-details:focus { outline: none; border-color: var(--ss-accent); }
.ss-report-submit {
    width: 100%;
    padding: 8px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ss-font);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    background: var(--ss-accent);
    color: #fff;
    transition: opacity 0.15s ease;
}
.ss-report-submit:hover { opacity: 0.9; }
.ss-report-submit:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Toast notification */
.ss-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--ss-toast-bg);
    border: 1px solid var(--ss-white-alpha-10);
    color: var(--ss-toast-text);
    font-size: 13px;
    padding: 10px 20px;
    border-radius: var(--ss-radius-sm);
    box-shadow: 0 4px 16px var(--ss-black-alpha-50);
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 200;
    pointer-events: none;
}
.ss-toast.ss-toast--visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Player expiry date */
.ss-player-expiry {
    font-size: 13px;
    color: var(--ss-text-muted);
    opacity: 0.7;
}

/* Expired page (410 Gone) */
.ss-expired-page {
    text-align: center;
    padding: 80px 24px;
    max-width: 480px;
    margin: 0 auto;
}
.ss-expired-icon {
    color: var(--ss-text-muted);
    margin-bottom: 24px;
    opacity: 0.5;
}
.ss-expired-page h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}
.ss-expired-page p {
    font-size: 15px;
    color: var(--ss-text-muted);
    line-height: 1.6;
    margin-bottom: 8px;
}
.ss-expired-retention {
    font-size: 13px;
    color: var(--ss-text-muted);
    opacity: 0.7;
    margin-bottom: 32px;
}
.ss-expired-page .ss-btn {
    margin-top: 16px;
}

/* === Free Tier Preview Boundary === */
.ss-preview-boundary {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--ss-accent, #6366f1);
    opacity: 0.8;
    z-index: 10;
    pointer-events: none;
}
.ss-preview-boundary::after {
    content: 'FREE PREVIEW';
    position: absolute;
    top: -18px;
    left: 4px;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--ss-accent, #6366f1);
    white-space: nowrap;
}

/* Plus gate overlay (analysis tab upsells) */
.ss-plus-gate-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    background: var(--ss-surface, rgba(255, 255, 255, 0.02));
    border: 1px solid var(--ss-border, rgba(255, 255, 255, 0.06));
    border-radius: var(--ss-radius, 12px);
}
.ss-plus-gate-content {
    text-align: center;
    max-width: 320px;
    padding: 2rem;
}
.ss-plus-gate-icon {
    color: var(--ss-accent, #6366f1);
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: center;
}
.ss-plus-gate-content h3 {
    color: #fff;
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}
.ss-plus-gate-content p {
    color: var(--ss-text-muted, #8b95b0);
    font-size: 0.9rem;
    margin: 0 0 1rem;
    line-height: 1.4;
}
.ss-plus-gate-disclaimer {
    font-size: 11px;
    color: var(--ss-text-muted, #8b95b0);
    margin-top: 8px;
    opacity: 0.7;
}
.ss-gated {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Visitor gate panel (shown instead of content for anonymous users) */
.ss-visitor-gate-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    background: var(--ss-surface, rgba(255, 255, 255, 0.02));
    border: 1px solid var(--ss-border, rgba(255, 255, 255, 0.06));
    border-radius: var(--ss-radius, 12px);
}
.ss-visitor-gate-panel h3 {
    color: #fff;
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}
.ss-visitor-gate-panel p {
    color: var(--ss-text-muted, #8b95b0);
    font-size: 0.9rem;
    margin: 0 0 1rem;
    line-height: 1.4;
}
.ss-visitor-gate-subtext {
    font-size: 11px !important;
    color: var(--ss-text-muted, #8b95b0) !important;
    margin-top: 8px !important;
    opacity: 0.7;
}

/* Coming soon panel (authenticated users, Lead Sheet tab) */
.ss-coming-soon-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    background: var(--ss-surface, rgba(255, 255, 255, 0.02));
    border: 1px solid var(--ss-border, rgba(255, 255, 255, 0.06));
    border-radius: var(--ss-radius, 12px);
    text-align: center;
    padding: 2rem;
}
.ss-coming-soon-panel h3 {
    color: #fff;
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}
.ss-coming-soon-panel p {
    color: var(--ss-text-muted, #8b95b0);
    font-size: 0.9rem;
    margin: 0 0 1rem;
    line-height: 1.4;
}

/* Buffering state on play button */
.ss-play-btn.ss-buffering {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}
.ss-play-btn.ss-buffering svg {
    visibility: hidden;
}
.ss-play-btn.ss-buffering::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: ss-spin 0.6s linear infinite;
}
@keyframes ss-spin {
    to { transform: rotate(360deg); }
}

/* Locked feature overlay */
.ss-locked-feature {
    position: relative;
    cursor: pointer;
}
.ss-locked-feature::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 26, 0.6);
    backdrop-filter: blur(2px);
    border-radius: inherit;
    z-index: 5;
}
.ss-locked-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 6;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 6px;
    color: var(--ss-accent, #6366f1);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

/* Expired page upsell section */
.ss-expired-upsell {
    margin-top: 32px;
    padding: 24px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px;
    text-align: center;
}
.ss-expired-upsell h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--ss-text-primary, #fff);
}
.ss-expired-upsell .ss-retention-tiers {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 16px 0;
    font-size: 14px;
    color: var(--ss-text-muted, #8b95b0);
}
.ss-expired-upsell .ss-retention-tier {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}
.ss-expired-upsell .ss-retention-tier strong {
    color: var(--ss-text-primary, #fff);
}

/* ============================================================
   PERFORMANCE PAGE
   ============================================================ */
.ss-performance-page {
    position: relative;
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px 80px;
}
.ss-performance-page::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse 60% 40% at 40% 15%, rgba(167, 139, 250, 0.10) 0%, transparent 55%),
        radial-gradient(ellipse 50% 45% at 65% 50%, rgba(91, 155, 245, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #0E0E1A 0%, #10102a 50%, #0d0d18 100%);
    pointer-events: none;
    animation: ss-bg-drift 25s ease-in-out infinite alternate;
}
[data-theme="light"] .ss-performance-page::before {
    background:
        radial-gradient(ellipse 60% 40% at 40% 15%, rgba(167, 139, 250, 0.06) 0%, transparent 55%),
        radial-gradient(ellipse 50% 45% at 65% 50%, rgba(91, 155, 245, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, #f2f0f8 0%, #f5f5f7 100%);
}
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .ss-performance-page::before {
        background:
            radial-gradient(ellipse 60% 40% at 40% 15%, rgba(167, 139, 250, 0.06) 0%, transparent 55%),
            radial-gradient(ellipse 50% 45% at 65% 50%, rgba(91, 155, 245, 0.05) 0%, transparent 50%),
            linear-gradient(180deg, #f2f0f8 0%, #f5f5f7 100%);
    }
}
@media (prefers-reduced-motion: reduce) {
    .ss-performance-page::before { animation: none; }
}
.ss-performance-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}
.ss-performance-header-left {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
    min-width: 0;
}
.ss-performance-art {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--ss-white-alpha-04);
    display: flex;
    align-items: center;
    justify-content: center;
}
.ss-performance-art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.ss-performance-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--ss-text);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ss-performance-subtitle {
    font-size: 13px;
    color: var(--ss-text-muted);
    margin: 2px 0 0;
}
.ss-performance-waveform {
    margin: 16px 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--ss-white-alpha-02);
    border: 1px solid var(--ss-white-alpha-06);
}
.ss-performance-video {
    margin: 16px 0;
    border-radius: 8px;
    overflow: hidden;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}
.ss-performance-video-el {
    width: 100%;
    display: block;
    border-radius: 8px;
    background: #000;
}

/* Video Hero — prominent video with orbital glow rings */
.ss-perf-video-hero {
    position: relative;
    margin: 24px auto;
    max-width: 640px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ss-perf-video-el {
    position: relative;
    z-index: 2;
    width: 100%;
    display: block;
    border-radius: 12px;
    background: #000;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

/* Video cover overlay — hides first frame */
.ss-perf-video-cover {
    position: absolute;
    inset: 0;
    z-index: 3;
    border-radius: 12px;
    background: var(--ss-gradient);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.4s ease;
    overflow: hidden;
}
.ss-perf-video-cover--hidden {
    opacity: 0;
    pointer-events: none;
}
.ss-perf-video-cover-play {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.2s ease;
    padding-left: 4px;
}
.ss-perf-video-cover:hover .ss-perf-video-cover-play {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.08);
}
.ss-perf-video-cover-title {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Cover loading state */
.ss-perf-video-cover--loading .ss-perf-video-cover-play { display: none; }
.ss-perf-video-cover-loader { display: none; flex-direction: column; align-items: center; gap: 12px; }
.ss-perf-video-cover--loading .ss-perf-video-cover-loader { display: flex; }

.ss-perf-cover-pulse-ring {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.4);
    animation: ss-cover-pulse 1.4s ease-in-out infinite;
}
@keyframes ss-cover-pulse {
    0%   { transform: scale(1);    opacity: 0.4; border-color: rgba(255, 255, 255, 0.3); }
    50%  { transform: scale(1.08); opacity: 1;   border-color: rgba(255, 255, 255, 0.6); }
    100% { transform: scale(1);    opacity: 0.4; border-color: rgba(255, 255, 255, 0.3); }
}
.ss-perf-cover-loading-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Video stall overlay — YouTube-style buffering spinner */
.ss-video-stall-overlay {
    position: absolute;
    inset: 0;
    z-index: 4;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: ss-fade-in 0.2s ease;
}
.ss-video-stall-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: ss-spin 0.8s linear infinite;
}
@keyframes ss-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.ss-performance-cta {
    text-align: center;
    margin: 32px 0 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.ss-performance-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
}
.ss-performance-cta-btn.ss-btn-outline {
    border-width: 2px;
}
.ss-performance-cta-sub {
    font-size: 13px;
    color: var(--ss-text-muted);
    margin-top: 8px;
}

/* Inline share icon row */
.ss-perf-share-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 20px 0 8px;
}
.ss-perf-share-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--ss-white-alpha-08);
    background: var(--ss-white-alpha-03);
    color: var(--ss-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}
.ss-perf-share-icon:hover {
    border-color: var(--ss-accent);
    color: var(--ss-accent);
    background: rgba(110, 160, 255, 0.08);
    transform: translateY(-2px);
}

.ss-btn-lg {
    font-size: 16px;
    padding: 14px 32px;
}

/* === Track Expiry & Upsell === */
.ss-track-expiry {
    font-size: 12px;
    color: var(--ss-text-muted);
    opacity: 0.6;
    margin-top: 2px;
}
.ss-track-expiry a {
    color: var(--ss-accent);
    text-decoration: none;
}
.ss-track-expiry a:hover { text-decoration: underline; }

.ss-track-count-upsell {
    color: inherit;
    opacity: 0.8;
    text-decoration: none;
}
.ss-track-count-upsell:hover { text-decoration: underline; }
.ss-upload-section--dark .ss-track-count-upsell { color: rgba(110, 160, 255, 0.6); }

/* === Recordings Social Dashboard === */

.ss-recordings-stats-card {
    background: linear-gradient(135deg, #f3f0ff 0%, #ede9fe 100%);
    border: 1px solid #ddd6fe;
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 16px;
}
.ss-recordings-stats-title {
    font-size: 13px;
    font-weight: 600;
    color: #6d28d9;
    margin: 0 0 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.ss-recordings-stats-numbers {
    font-size: 15px;
    font-weight: 500;
    color: #4c1d95;
    margin: 0;
}
.ss-stats-sep {
    margin: 0 6px;
    opacity: 0.4;
}

.ss-recordings-share-nudge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #faf5ff;
    border: 1px solid #ede9fe;
    border-radius: 10px;
    padding: 10px 16px;
    margin-bottom: 16px;
    font-size: 13px;
    color: #7c3aed;
}

/* Sort toggle */
.ss-recordings-sort-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
}
.ss-sort-btn {
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 500;
    color: #6b7280;
    background: transparent;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
}
.ss-sort-btn:hover {
    color: #7c3aed;
    border-color: #c4b5fd;
}
.ss-sort-btn--active {
    color: #7c3aed;
    background: #f3f0ff;
    border-color: #c4b5fd;
}

/* Recording card with copy-link */
.ss-recording-card {
    position: relative;
    background: #fff;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    transition: all 0.15s ease;
}
.ss-recording-card:hover {
    border-color: #c4b5fd;
    box-shadow: 0 1px 3px rgba(124, 58, 237, 0.06);
}
.ss-recording-card-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    text-decoration: none;
    color: inherit;
}
.ss-recording-copy-link {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
    background: #fff;
    color: #9ca3af;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all 0.15s ease;
    z-index: 2;
}
.ss-recording-card:hover .ss-recording-copy-link {
    opacity: 1;
}
.ss-recording-copy-link:hover {
    color: #7c3aed;
    border-color: #c4b5fd;
    background: #f3f0ff;
}

/* Stat pills on recording cards */
.ss-rec-stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 10px;
    background: #f3f0ff;
    color: #6d28d9;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
}
.ss-rec-stat-pill svg {
    color: #8b5cf6;
    flex-shrink: 0;
}
.ss-rec-stat-nudge {
    font-size: 11px;
    color: #c4b5fd;
    font-style: italic;
}

/* Toast for recordings page */
.ss-rec-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1f2937;
    color: #f9fafb;
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 100;
}
.ss-rec-toast--visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* === Post-Recording Share Prompt (Performance Page) === */

.ss-share-prompt {
    background: linear-gradient(135deg, #f3f0ff 0%, #ede9fe 100%);
    border: 1px solid #ddd6fe;
    border-radius: 12px;
    padding: 20px 24px;
    margin: 20px 0;
    text-align: center;
}
.ss-share-prompt-title {
    font-size: 16px;
    font-weight: 600;
    color: #4c1d95;
    margin: 0 0 12px;
}
.ss-share-prompt-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}
.ss-share-prompt-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid #c4b5fd;
    background: #fff;
    color: #6d28d9;
    text-decoration: none;
    transition: all 0.15s ease;
}
.ss-share-prompt-btn:hover {
    background: #7c3aed;
    color: #fff;
    border-color: #7c3aed;
}
.ss-share-prompt-btn--copy {
    background: #7c3aed;
    color: #fff;
    border-color: #7c3aed;
}
.ss-share-prompt-btn--copy:hover {
    background: #6d28d9;
}
.ss-share-prompt-dismiss {
    display: block;
    margin-top: 10px;
    font-size: 12px;
    color: #9ca3af;
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: underline;
}
.ss-share-prompt-dismiss:hover {
    color: #6b7280;
}

/* === Cover Count Badge (Player Page) === */

.ss-cover-count {
    font-size: 13px;
    color: var(--ss-text-muted, #9ca3af);
    margin-top: 4px;
}
.ss-cover-count strong {
    font-weight: 600;
    color: var(--ss-text, #e8ecf4);
}

/* ============================================================
   TIER STRATEGY: Locked Stems, Quality Badge, Speed Badge,
   Inline Lyrics, Plus Credit Toggle, Duet Pages
   ============================================================ */

/* --- Quality Badge --- */
.ss-quality-badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.ss-quality-standard {
    background: rgba(107, 114, 128, 0.2);
    color: #9ca3af;
}
.ss-quality-hq {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

/* --- Locked Stem Lanes (2-stem free users) --- */
/* These lanes match real stem lane height and sit between backing and tempo */
.ss-stem-lane-locked {
    position: relative;
    display: flex;
    align-items: stretch;
    height: 60px;
    opacity: 0.4;
    border-bottom: 1px solid var(--ss-border, rgba(255,255,255,0.06));
    transition: opacity 0.2s;
    cursor: pointer;
}
.ss-stem-lane-locked:hover {
    opacity: 0.55;
}
.ss-locked-stem-controls {
    width: var(--ss-sidebar-width, 180px);
    display: flex;
    align-items: center;
    padding: 0 12px;
    flex-shrink: 0;
    border-right: 1px solid var(--ss-border, rgba(255,255,255,0.06));
}
.ss-locked-stem-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--ss-text-muted, #6b7280);
}
.ss-locked-waveform-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
}
.ss-locked-waveform {
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        90deg,
        var(--ss-text-muted, #6b7280) 0px,
        var(--ss-text-muted, #6b7280) 2px,
        transparent 2px,
        transparent 5px
    );
    opacity: 0.2;
    mask-image: linear-gradient(
        0deg,
        transparent 10%,
        rgba(0,0,0,0.3) 20%,
        rgba(0,0,0,0.6) 35%,
        rgba(0,0,0,0.4) 50%,
        rgba(0,0,0,0.7) 60%,
        rgba(0,0,0,0.3) 75%,
        transparent 90%
    );
    -webkit-mask-image: linear-gradient(
        0deg,
        transparent 10%,
        rgba(0,0,0,0.3) 20%,
        rgba(0,0,0,0.6) 35%,
        rgba(0,0,0,0.4) 50%,
        rgba(0,0,0,0.7) 60%,
        rgba(0,0,0,0.3) 75%,
        transparent 90%
    );
}
.ss-stem-unlock-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--ss-text-muted, #9ca3af);
    opacity: 0;
    transition: opacity 0.2s;
}
.ss-stem-lane-locked:hover .ss-stem-unlock-overlay {
    opacity: 1;
}
@media (max-width: 768px) {
    .ss-locked-stem-controls { width: 100%; border-right: none; }
    .ss-stem-lane-locked { height: 48px; }
}

/* --- Inline Lyrics (3-line synced display) --- */
.ss-inline-lyrics {
    text-align: center;
    padding: 16px 20px;
    height: 225px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--ss-surface-alt, rgba(255,255,255,0.03));
    border-radius: 8px;
    margin: 8px 0;
    position: relative;
    overflow: hidden;
}
.ss-inline-lyrics::before,
.ss-inline-lyrics::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    height: 16px;
    pointer-events: none;
    z-index: 1;
}
.ss-inline-lyrics::before {
    top: 0;
    background: linear-gradient(to bottom, var(--ss-surface-alt, rgba(20,20,30,1)), transparent);
}
.ss-inline-lyrics::after {
    bottom: 0;
    background: linear-gradient(to top, var(--ss-surface-alt, rgba(20,20,30,1)), transparent);
}
.ss-inline-lyrics p {
    margin: 0;
    line-height: 1.6;
    transition: all 0.3s ease;
}
.ss-inline-lyrics-prev,
.ss-inline-lyrics-next {
    font-size: 13px;
    color: var(--ss-text-muted, #6b7280);
    opacity: 0.5;
}
.ss-inline-lyrics-current {
    font-size: 15px;
    font-weight: 500;
    color: var(--ss-text, #e8ecf4);
}
/* Collapsible on mobile */
@media (max-width: 768px) {
    .ss-inline-lyrics {
        padding: 6px 12px;
    }
    .ss-inline-lyrics-prev,
    .ss-inline-lyrics-next {
        display: none;
    }
}

/* --- Plus Credit Toggle --- */
.ss-plus-credit-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    margin: 8px 0;
    border-radius: 8px;
    background: rgba(168, 85, 247, 0.08);
    border: 1px solid rgba(168, 85, 247, 0.2);
}
.ss-toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--ss-text, #e8ecf4);
}
.ss-toggle-input {
    display: none;
}
.ss-toggle-switch {
    display: inline-block;
    width: 36px;
    height: 20px;
    background: var(--ss-surface, #1e1e2e);
    border-radius: 10px;
    position: relative;
    transition: background 0.2s;
    flex-shrink: 0;
}
.ss-toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: #6b7280;
    transition: all 0.2s;
}
.ss-toggle-input:checked + .ss-toggle-switch {
    background: #a855f7;
}
.ss-toggle-input:checked + .ss-toggle-switch::after {
    transform: translateX(16px);
    background: #fff;
}
.ss-toggle-text {
    font-size: 13px;
}
.ss-plus-badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    background: rgba(168, 85, 247, 0.2);
    color: #a855f7;
}
.ss-toggle-detail {
    font-size: 11px;
    color: var(--ss-text-muted, #6b7280);
    margin-left: auto;
}
.ss-plus-credit-spent {
    margin: 4px 0;
    font-size: 12px;
    text-align: center;
}
.ss-text-link {
    color: #a855f7;
    text-decoration: none;
}
.ss-text-link:hover {
    text-decoration: underline;
}

/* --- Plus Upsell Badge --- */
.ss-speed-badge {
    text-align: center;
    padding: 8px 0;
    font-size: 12px;
}
.ss-speed-plus-link {
    color: #a855f7;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}
.ss-speed-plus-link:hover {
    color: #c084fc;
    text-decoration: underline;
}

/* --- Performance Page: Actions Row --- */
.ss-performance-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 0;
}

/* --- Duet Pages --- */
.ss-duet-page,
.ss-duet-playback-page {
    max-width: 540px;
    margin: 0 auto;
    padding: 32px 16px;
}
.ss-duet-playback-header {
    text-align: center;
    margin-bottom: 24px;
}
.ss-duet-title {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 4px;
    color: var(--ss-text, #e8ecf4);
}
.ss-duet-subtitle {
    font-size: 14px;
    color: var(--ss-text-muted, #9ca3af);
    margin: 0;
}
.ss-duet-footer {
    text-align: center;
    font-size: 13px;
    color: var(--ss-text-muted, #6b7280);
    padding-top: 24px;
    border-top: 1px solid var(--ss-border, rgba(255,255,255,0.06));
    margin-top: 32px;
}

/* Duet Invite — Hero */
.ss-duet-hero {
    text-align: center;
    margin-bottom: 28px;
}
.ss-duet-hero-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(167, 139, 250, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: #a78bfa;
}
.ss-duet-hero-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--ss-text);
    margin: 0 0 8px;
}
.ss-duet-hero-subtitle {
    font-size: 15px;
    color: var(--ss-text-muted);
    margin: 0;
    line-height: 1.5;
}

/* Duet Invite — Audio Preview Card */
.ss-duet-preview-card {
    background: var(--ss-surface, #16161b);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius, 12px);
    padding: 16px;
    margin-bottom: 20px;
}
.ss-duet-preview-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 13px;
}
.ss-duet-preview-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #a78bfa;
    flex-shrink: 0;
}
.ss-duet-preview-label {
    color: var(--ss-text);
    font-weight: 500;
    flex: 1;
}
.ss-duet-preview-time {
    font-family: var(--ss-mono);
    color: var(--ss-text-muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}
.ss-duet-preview-waveform {
    height: 64px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--ss-radius-sm, 8px);
    overflow: hidden;
    cursor: pointer;
    margin-bottom: 12px;
}
.ss-duet-preview-waveform canvas {
    width: 100%;
    height: 100%;
}
.ss-duet-preview-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}
.ss-duet-preview-duration {
    font-family: var(--ss-mono);
    font-size: 12px;
    color: var(--ss-text-muted);
    font-variant-numeric: tabular-nums;
}

/* Shared Play Toggle Button */
.ss-duet-play-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--ss-accent);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.15s, transform 0.15s;
    flex-shrink: 0;
}
.ss-duet-play-toggle:hover { opacity: 0.85; transform: scale(1.05); }
.ss-duet-play-toggle--lg {
    width: 48px;
    height: 48px;
}

/* Duet Invite — Context Card */
.ss-duet-context-card {
    background: var(--ss-surface, #16161b);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius, 12px);
    padding: 16px;
    text-align: center;
    margin-bottom: 24px;
}
.ss-duet-context-split {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 10px;
}
.ss-duet-context-lane {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--ss-text);
}
.ss-duet-context-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.ss-duet-context-dot--them { background: #a78bfa; }
.ss-duet-context-dot--you { background: #6ea0ff; }
.ss-duet-context-plus {
    color: var(--ss-text-muted);
    font-size: 16px;
    font-weight: 300;
}
.ss-duet-context-text {
    font-size: 13px;
    color: var(--ss-text-muted);
    margin: 0;
}

/* Duet Invite — CTA */
.ss-duet-cta {
    text-align: center;
    padding: 8px 0 0;
}
.ss-duet-cta-btn {
    gap: 8px;
    font-size: 16px;
    padding: 14px 32px;
}

/* Duet Playback — Lanes */
.ss-duet-playback-lanes {
    margin: 0 0 8px;
}
.ss-duet-lane {
    padding: 10px 0;
    border-bottom: 1px solid var(--ss-border, rgba(255,255,255,0.06));
}
.ss-duet-lane:last-child { border-bottom: none; }
.ss-duet-lane-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.ss-duet-lane-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.ss-duet-lane-dot--original { background: #a78bfa; }
.ss-duet-lane-dot--partner { background: #6ea0ff; }
.ss-duet-lane-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--ss-text, #e8ecf4);
}
.ss-duet-waveform {
    height: 56px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--ss-radius-sm, 8px);
    overflow: hidden;
    cursor: pointer;
}
.ss-duet-waveform canvas {
    width: 100%;
    height: 100%;
}

/* Duet Playback — Seek Bar */
.ss-duet-seek-bar {
    position: relative;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    cursor: pointer;
    margin: 8px 0;
}
.ss-duet-seek-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--ss-accent, #6ea0ff);
    border-radius: 3px;
    width: 0;
    transition: width 0.05s linear;
}
.ss-duet-seek-handle {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
    left: 0;
    transition: left 0.05s linear;
}

/* Duet Playback — Controls */
.ss-duet-playback-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 12px 0;
}
.ss-duet-time {
    font-family: var(--ss-mono);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    color: var(--ss-text-muted, #9ca3af);
    min-width: 36px;
    text-align: center;
}

/* Duet Playback — Share Section */
.ss-duet-share-section {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid var(--ss-border);
    margin-top: 8px;
}
.ss-duet-share-heading {
    font-size: 14px;
    font-weight: 500;
    color: var(--ss-text-muted);
    margin: 0 0 12px;
}
.ss-duet-share-row {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Lead Sheet tab */
.ss-leadsheet-container { background: #fff; border-radius: var(--ss-radius, 12px); overflow: hidden; }
.ss-leadsheet-header { padding: 16px 20px 8px; background: #fff; }
.ss-leadsheet-title { font-size: 1.3rem; font-weight: 600; color: #1a1a2e; border: none;
    border-bottom: 2px solid transparent; background: transparent; width: 100%;
    padding: 4px 0; outline: none; transition: border-color 0.2s; font-family: inherit; }
.ss-leadsheet-title:hover { border-bottom-color: #ddd; }
.ss-leadsheet-title:focus { border-bottom-color: var(--ss-accent, #6c5ce7); }
.ss-leadsheet-toolbar { display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px 8px; gap: 12px; flex-wrap: wrap; }
.ss-leadsheet-shift-btns { display: flex; gap: 6px; }
.ss-leadsheet-transpose { display: flex; align-items: center; gap: 8px; }
.ss-leadsheet-transpose label { font-size: 0.85rem; color: #8b95b0; font-weight: 500; }
.ss-leadsheet-key-select { font-size: 0.85rem; padding: 4px 8px; border-radius: 6px;
    border: 1px solid #ddd; background: #fff; color: #1a1a2e; cursor: pointer; }
.ss-leadsheet-score { padding: 8px 16px 24px; min-height: 300px; background: #fff; }
.ss-leadsheet-loading { display: flex; align-items: center; justify-content: center;
    min-height: 200px; color: #8b95b0; }


/* ============================================================
   PREMIUM POLISH — Visual Depth & Micro-interactions
   Added for editorial-quality feel across the player UI.
   All animations respect prefers-reduced-motion.
   ============================================================ */

/* --- 1. Player Header — glass effect & art glow --- */
.ss-player-header {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(22, 22, 27, 0.85);
    border-bottom: none;
    box-shadow: 0 1px 0 var(--ss-border), 0 4px 24px rgba(0, 0, 0, 0.15);
}
.ss-player-art {
    box-shadow: 0 4px 20px rgba(167, 139, 250, 0.15);
    overflow: hidden;
}
.ss-player-art img {
    transition: transform 0.3s ease;
}
.ss-player-art:hover img {
    transform: scale(1.05);
}

/* --- 2. Transport Bar — glass effect & border glow --- */
.ss-transport-bar {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(22, 22, 27, 0.9);
    border-bottom: none;
    border-top: 1px solid rgba(167, 139, 250, 0.08);
    box-shadow: 0 1px 0 var(--ss-border);
}

/* Play button — enhanced hover glow */
.ss-play-btn:hover {
    box-shadow: 0 0 28px var(--ss-accent-glow), 0 0 8px rgba(167, 139, 250, 0.2);
}

/* Play button — pulse animation when playing */
@keyframes ss-play-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(110, 160, 255, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(110, 160, 255, 0); }
}
.ss-play-btn.ss-playing-pulse {
    animation: ss-play-pulse 2s ease-in-out infinite;
}

/* Skip / toolbar buttons — accent color on hover */
.ss-toolbar-btn {
    transition: all 0.2s ease;
}
.ss-toolbar-btn:hover {
    color: var(--ss-accent);
}
.ss-toolbar-btn:active {
    transform: scale(0.92);
}

/* --- 3. Progress Bar — gradient fill & glow --- */
.ss-progress-fill {
    background: linear-gradient(90deg, var(--ss-accent), #a78bfa);
    box-shadow: 0 0 8px rgba(110, 160, 255, 0.3);
}
.ss-progress-handle {
    transition: opacity 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.ss-progress-bar:hover .ss-progress-handle,
.ss-progress-bar.ss-dragging .ss-progress-handle {
    opacity: 1;
    width: 18px;
    height: 18px;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5), 0 0 10px rgba(110, 160, 255, 0.3);
}

/* --- 4. View Tabs — glow, thicker active border, hover bg --- */
.ss-view-tab:hover {
    background: rgba(255, 255, 255, 0.03);
}
.ss-view-tab-active {
    border-bottom-width: 3px;
    box-shadow: 0 2px 8px rgba(167, 139, 250, 0.2);
}
.ss-view-panel {
    animation: ss-tab-fade-in 0.25s ease;
}
@keyframes ss-tab-fade-in {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- 5. Stem Controls — hover indicator, mute/solo glow, volume thumb glow --- */
.ss-stem-sidebar-block {
    transition: opacity 0.2s ease, border-left 0.15s ease;
    border-left: 3px solid transparent;
}
.ss-stem-sidebar-block:hover {
    border-left-color: var(--ss-stem-backing);
}
.ss-stem-sidebar-block[data-stem-type="vocals"]:hover {
    border-left-color: var(--ss-stem-vocals);
}
.ss-stem-sidebar-block[data-stem-type="recording"]:hover {
    border-left-color: var(--ss-stem-recording);
}

/* Mute/Solo hover glow */
.ss-solo-btn:hover {
    box-shadow: 0 0 6px rgba(250, 204, 21, 0.3);
}
.ss-mute-btn:hover {
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.15);
}

/* Volume slider — custom thumb with glow */
.ss-stem-volume::-webkit-slider-thumb:hover {
    width: 10px;
    height: 10px;
    box-shadow: 0 0 6px var(--ss-accent-glow);
}
.ss-stem-volume::-moz-range-thumb:hover {
    width: 10px;
    height: 10px;
    box-shadow: 0 0 6px var(--ss-accent-glow);
}

/* --- 6. Waveform Area — inner shadow at edges, softer canvas --- */
.ss-waveform-scroll {
    box-shadow: inset 8px 0 16px -8px rgba(0, 0, 0, 0.3), inset -8px 0 16px -8px rgba(0, 0, 0, 0.3);
}
.ss-stem-canvas {
    border-radius: 0 6px 6px 0;
}

/* --- 7. Record Button — idle pulsing glow & enhanced hover --- */
@keyframes ss-record-idle-glow {
    0%, 100% { box-shadow: 0 0 24px rgba(239, 68, 68, 0.1), 0 0 0 0 rgba(248, 113, 113, 0.3); }
    50% { box-shadow: 0 0 32px rgba(239, 68, 68, 0.2), 0 0 0 8px rgba(248, 113, 113, 0); }
}
.ss-record-hero-btn:not(.ss-hero-recording):not(.ss-hero-countdown) {
    animation: ss-record-idle-glow 3s ease-in-out infinite;
}
.ss-record-hero-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 0 40px rgba(239, 68, 68, 0.3), 0 0 12px rgba(248, 113, 113, 0.2);
}

/* --- 8. Toolbar Buttons — smoother transitions --- */
/* (transitions and active scale already applied in section 2 above) */

/* --- 9. Toast Notifications — glass effect & slide-in --- */
.ss-toast {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(31, 41, 55, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* --- 10. Modal Overlays — backdrop blur & glass card --- */
.ss-modal-overlay {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    background: rgba(0, 0, 0, 0.6);
}
.ss-modal {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(22, 22, 27, 0.92);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.06);
}

/* --- 11. Feature Gate Cards — glassmorphism & CTA gradient --- */
.ss-visitor-gate-panel,
.ss-coming-soon-panel {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(22, 22, 27, 0.7);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}
.ss-visitor-gate-panel .ss-btn--primary,
.ss-coming-soon-panel .ss-btn--primary {
    background: linear-gradient(135deg, #6ea0ff 0%, #a78bfa 100%);
    border: none;
    box-shadow: 0 2px 12px rgba(110, 160, 255, 0.3);
    transition: box-shadow 0.2s ease, transform 0.15s ease;
}
.ss-visitor-gate-panel .ss-btn--primary:hover,
.ss-coming-soon-panel .ss-btn--primary:hover {
    box-shadow: 0 4px 20px rgba(110, 160, 255, 0.45);
    transform: translateY(-1px);
}

/* --- prefers-reduced-motion: disable all new animations --- */
@media (prefers-reduced-motion: reduce) {
    .ss-play-btn.ss-playing-pulse,
    .ss-record-hero-btn:not(.ss-hero-recording):not(.ss-hero-countdown) {
        animation: none;
    }
    .ss-view-panel {
        animation: none;
    }
    .ss-player-art img {
        transition: none;
    }
    .ss-toolbar-btn,
    .ss-progress-handle,
    .ss-stem-sidebar-block {
        transition: none;
    }
}

/* --- Light theme overrides for depth effects --- */
[data-theme="light"] .ss-player-header {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 24px rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .ss-transport-bar {
    background: rgba(255, 255, 255, 0.9);
    border-top-color: rgba(110, 160, 255, 0.1);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .ss-player-art {
    box-shadow: 0 4px 20px rgba(110, 160, 255, 0.1);
}
[data-theme="light"] .ss-progress-fill {
    box-shadow: 0 0 6px rgba(110, 160, 255, 0.2);
}
[data-theme="light"] .ss-view-tab-active {
    box-shadow: 0 2px 8px rgba(110, 160, 255, 0.15);
}
[data-theme="light"] .ss-waveform-scroll {
    box-shadow: inset 8px 0 16px -8px rgba(0, 0, 0, 0.08), inset -8px 0 16px -8px rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .ss-toast {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .ss-modal-overlay {
    background: rgba(0, 0, 0, 0.3);
}
[data-theme="light"] .ss-modal {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .ss-visitor-gate-panel,
[data-theme="light"] .ss-coming-soon-panel {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .ss-solo-btn:hover {
    box-shadow: 0 0 6px rgba(250, 204, 21, 0.2);
}
[data-theme="light"] .ss-mute-btn:hover {
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.1);
}

/* ============================================================
   TAB DISCOVERY — Sequential loading indicators (demo only)
   ============================================================ */
.ss-view-tab .ss-tab-loader {
    display: none;
    width: 14px;
    height: 14px;
    margin-left: 6px;
    vertical-align: middle;
}
.ss-view-tab .ss-tab-loader.ss-tab-loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.ss-tab-loader-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.1);
    border-top-color: var(--ss-accent);
    border-radius: 50%;
    animation: ss-tab-spin 0.6s linear infinite;
}
@keyframes ss-tab-spin {
    to { transform: rotate(360deg); }
}
.ss-tab-loader-check {
    display: none;
    color: var(--ss-success);
    font-size: 13px;
    animation: ss-tab-check-pop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes ss-tab-check-pop {
    0% { transform: scale(0); }
    100% { transform: scale(1); }
}
.ss-tab-loader.ss-tab-done .ss-tab-loader-spinner { display: none; }
.ss-tab-loader.ss-tab-done .ss-tab-loader-check { display: inline; }

.ss-view-tab.ss-tab-just-loaded {
    color: var(--ss-text) !important;
    text-shadow: 0 0 8px var(--ss-accent-glow);
    transition: text-shadow 0.3s ease, color 0.3s ease;
}
.ss-tab-loader.ss-tab-fade-out {
    opacity: 0;
    transition: opacity 0.5s ease;
}

@media (prefers-reduced-motion: reduce) {
    .ss-tab-loader-spinner { animation: none; }
    .ss-tab-loader-check { animation: none; }
}