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

:root {
    --bg:          #0a0a0f;
    --surface:     #111118;
    --border:      rgba(140, 80, 255, 0.2);
    --border-glow: rgba(140, 80, 255, 0.5);
    --purple:      #7c3aed;
    --pink:        #ec4899;
    --cyan:        #06b6d4;
    --text:        #e2e0f0;
    --text-muted:  #9990bb;
    --radius:      12px;
    --glass-bg:    rgba(255,255,255,0.03);
    --glass-blur:  blur(12px);
}

html { font-size: 16px; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background:  var(--bg);
    color:       var(--text);
    min-height:  100vh;
    line-height: 1.5;
}

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.app-wrapper {
    width:   100%;
    padding: 0 16px 4rem;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
header {
    padding:    2.5rem 0 2rem;
    text-align: center;
}

header h1 {
    font-size:   2.6rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    background:  linear-gradient(135deg, var(--purple), var(--pink), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    color:      var(--text-muted);
    margin-top: 0.5rem;
    font-size:  1.05rem;
}

/* ── Main grid ──────────────────────────────────────────────────────────────── */
.main-grid {
    display:               grid;
    grid-template-columns: 1fr 1fr;
    gap:                   1.5rem;
    align-items:           start;
}

@media (max-width: 860px) {
    .main-grid { grid-template-columns: 1fr; }
}

/* ── Glass panel ─────────────────────────────────────────────────────────────── */
.panel {
    background:    var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border:        1px solid var(--border);
    border-radius: var(--radius);
    padding:       1.5rem;
    transition:    border-color 0.3s;
}

.panel:hover { border-color: var(--border-glow); }

.panel h2 {
    font-size:     1rem;
    font-weight:   700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color:          var(--text-muted);
    margin-bottom:  1rem;
    display:        flex;
    align-items:    center;
    gap:            0.4rem;
}

.panel h2 .step-badge {
    display:         inline-flex;
    align-items:     center;
    justify-content: center;
    width:  1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background: var(--purple);
    color:       #fff;
    font-size:   0.75rem;
    font-weight: 800;
}

/* ── Form elements ──────────────────────────────────────────────────────────── */
.form-row {
    display:   flex;
    gap:       0.75rem;
    flex-wrap: wrap;
}

.form-group {
    display:       flex;
    flex-direction: column;
    gap:           0.4rem;
    margin-bottom: 1rem;
    flex:          1 1 200px;
}

.form-group:last-child { margin-bottom: 0; }

label {
    font-size:   0.8rem;
    font-weight: 600;
    color:       var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="text"],
input[type="password"],
select,
textarea {
    background:    rgba(255,255,255,0.05);
    border:        1px solid var(--border);
    border-radius: 8px;
    color:         var(--text);
    font-size:     0.95rem;
    padding:       0.55rem 0.8rem;
    width:         100%;
    transition:    border-color 0.2s, box-shadow 0.2s;
    font-family:   inherit;
}

input:focus, select:focus, textarea:focus {
    outline:      none;
    border-color: var(--purple);
    box-shadow:   0 0 0 3px rgba(124,58,237,0.2);
}

select option { background: #1a1a2e; }

textarea {
    resize:     vertical;
    min-height: 80px;
}

/* ── API key row ──────────────────────────────────────────────────────────────  */
.key-row {
    display: flex;
    gap:     0.5rem;
}

.key-row input { flex: 1; }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
    border:        none;
    border-radius: 8px;
    cursor:        pointer;
    font-family:   inherit;
    font-weight:   700;
    font-size:     0.9rem;
    padding:       0.6rem 1.2rem;
    transition:    all 0.2s;
    white-space:   nowrap;
}

.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
    background: linear-gradient(135deg, var(--purple), var(--pink));
    color:      #fff;
    box-shadow: 0 0 20px rgba(124,58,237,0.35);
}

.btn-cancel {
    background: linear-gradient(135deg, #b91c1c, #dc2626) !important;
    color: #fff !important;
    border-color: rgba(220,38,38,0.6) !important;
}
.btn-cancel:hover { box-shadow: 0 0 20px rgba(220,38,38,0.5) !important; }

.btn-primary:hover:not(:disabled) {
    transform:  translateY(-1px);
    box-shadow: 0 0 30px rgba(124,58,237,0.55);
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    border:     1px solid var(--border);
    color:      var(--text);
}

.btn-secondary:hover:not(:disabled) {
    background:   rgba(255,255,255,0.1);
    border-color: var(--border-glow);
}

.btn-generate {
    width:     100%;
    padding:   0.85rem;
    font-size: 1.05rem;
    margin-top: 0.5rem;
    background: linear-gradient(135deg, var(--purple) 0%, var(--pink) 60%, var(--cyan) 100%);
    color:      #fff;
    box-shadow: 0 0 24px rgba(124,58,237,0.4);
}

.btn-generate:hover:not(:disabled) {
    box-shadow: 0 0 36px rgba(124,58,237,0.65);
    transform:  translateY(-1px);
}

/* ── Audio drop zone ─────────────────────────────────────────────────────────── */
.audio-drop {
    display:         flex;
    flex-direction:  column;
    align-items:     center;
    justify-content: center;
    gap:             0.5rem;
    border:          2px dashed var(--border);
    border-radius:   var(--radius);
    padding:         1.5rem;
    cursor:          pointer;
    text-align:      center;
    transition:      border-color 0.2s, background 0.2s;
}

.audio-drop:hover, .audio-drop.drag-over {
    border-color: var(--purple);
    background:   rgba(124,58,237,0.06);
}

.audio-drop .icon {
    font-size: 2rem;
    line-height: 1;
}

.audio-drop .drop-hint {
    font-size: 0.8rem;
    color:     var(--text-muted);
}

#audio-file,
#svg-upload  { display: none; }
#audio-file-name {
    font-size:  0.85rem;
    color:      var(--cyan);
    font-weight: 600;
    margin-top:  0.25rem;
}

/* ── Status messages ──────────────────────────────────────────────────────────  */
.status-msg {
    display:       none;
    font-size:     0.82rem;
    font-weight:   600;
    padding:       0.4rem 0.7rem;
    border-radius: 6px;
    margin-top:    0.4rem;
}

.status-msg.success { background: rgba(6,182,212,0.12); color: var(--cyan); }
.status-msg.error   { background: rgba(236,72,153,0.12); color: var(--pink); }

/* ── Slider ──────────────────────────────────────────────────────────────────── */
.slider-row {
    display:     flex;
    align-items: center;
    gap:         0.75rem;
}

input[type="range"] {
    -webkit-appearance: none;
    flex:       1;
    height:     3px;
    background: linear-gradient(to right, var(--purple), var(--pink));
    border:     none;
    border-radius: 2px;
    cursor:     pointer;
    margin:     0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width:         13px;
    height:        13px;
    border-radius: 50%;
    background:    #000;
    border:        2px solid var(--purple);
    box-shadow:    0 0 5px rgba(124,58,237,0.6);
    cursor:        pointer;
}

input[type="range"]::-moz-range-thumb {
    width:         12px;
    height:        12px;
    border-radius: 50%;
    background:    #000;
    border:        2px solid var(--purple);
    box-shadow:    0 0 5px rgba(124,58,237,0.6);
    cursor:        pointer;
}

.slider-label-row {
    display:         flex;
    justify-content: space-between;
    font-size:       0.75rem;
    color:           var(--text-muted);
    margin-top:      0.2rem;
}

.energy-val {
    font-weight: 800;
    color:       var(--cyan);
    min-width:   1.5rem;
    text-align:  right;
}

/* ── Preview section ─────────────────────────────────────────────────────────── */
#preview-section {
    margin-top:    2rem;
    display:       flex;
    flex-direction: column;
    gap:           1.5rem;
}

#preview-section.hidden { display: none; }

.preview-canvas-row {
    display:     flex;
    gap:         1.5rem;
    align-items: stretch;
    flex-wrap:   wrap;
    position:    sticky;
    top:         0;
    z-index:     50;
    background:  var(--bg);
    padding:     0.75rem 0;
    margin:      -0.75rem 0 0;
    box-shadow:  0 4px 24px rgba(0,0,0,0.6);
}

/* canvas-col: column container for canvas + audio controls
   Width auto-sizes from the canvas-wrapper's aspect-ratio + row height */
.canvas-col {
    display:        flex;
    flex-direction: column;
    flex:           0 0 auto;
    width:          auto;
    max-width:      min(700px, 100%);
}

.canvas-col.landscape {
    max-width: min(700px, 100%);
}

/* Audio controls bar — sits directly below the canvas */
.audio-controls-bar {
    display:     flex;
    align-items: center;
    gap:         0.45rem;
    padding:     0.45rem 0.6rem;
    background:  rgba(255,255,255,0.04);
    border:      1px solid var(--border);
    border-top:  none;
    border-radius: 0 0 var(--radius) var(--radius);
    width:       100%;
    box-sizing:  border-box;
}

.aud-play-btn {
    -webkit-appearance: none;
    background:    rgba(124,58,237,0.2);
    border:        1px solid var(--purple);
    color:         var(--text);
    border-radius: 6px;
    width:         30px;
    height:        28px;
    font-size:     0.8rem;
    line-height:   1;
    cursor:        pointer;
    flex-shrink:   0;
    display:       flex;
    align-items:   center;
    justify-content: center;
    transition:    background 0.15s;
}
.aud-play-btn:hover { background: rgba(124,58,237,0.4); }

.aud-time {
    font-size:     0.68rem;
    color:         var(--text-muted);
    font-variant-numeric: tabular-nums;
    flex-shrink:   0;
    min-width:     2.6em;
    text-align:    center;
}

.aud-seek {
    flex: 1;
    min-width: 0;
}

.aud-vol-group {
    display:     flex;
    align-items: center;
    gap:         0.3rem;
    flex-shrink: 0;
}

.aud-vol-icon {
    font-size:   0.75rem;
    line-height: 1;
    user-select: none;
}

.aud-vol {
    width: 56px;
}

.preview-options-row {
    display:     flex;
    gap:         1.5rem;
    align-items: start;
    flex-wrap:   wrap;
}

/* Each options column stacks its panels vertically */
.options-col {
    display:        flex;
    flex-direction: column;
    gap:            1.5rem;
    flex:           1 1 280px;
    min-width:      260px;
}

/* Canvas wrapper — 16:9 outer frame; height fills the row (matches controls panel);
   width auto-sizes from aspect-ratio. Portrait canvas is pillarboxed inside. */
.canvas-wrapper {
    position:        relative;
    flex:            1;
    width:           auto;
    aspect-ratio:    16/9;
    min-height:      220px;
    background:      #000;
    border:          1px solid var(--border-glow);
    border-top-left-radius:  var(--radius);
    border-top-right-radius: var(--radius);
    overflow:        hidden;
    box-shadow:      0 0 40px rgba(124,58,237,0.3);
    display:         flex;
    align-items:     center;
    justify-content: center;
}

/* Portrait 9:16 canvas: fit by height, black pillarboxes fill the sides */
.canvas-wrapper canvas {
    display: block;
    height:  100%;
    width:   auto;
}

/* Landscape 16:9: switch to width-driven layout so aspect-ratio isn't overconstrained */
.preview-canvas-row.landscape {
    align-items: start;
}
.canvas-wrapper.landscape {
    flex:   0 0 auto;
    width:  100%;
}

/* Landscape 16:9 canvas: fill the 16:9 wrapper exactly */
.canvas-wrapper.landscape canvas {
    width:  100%;
    height: 100%;
}

/* Fullscreen overlay button (top-right corner of canvas-wrapper) */
.fs-overlay-btn {
    position:        absolute;
    top:             0.45rem;
    right:           0.45rem;
    background:      rgba(0,0,0,0.45);
    border:          1px solid rgba(255,255,255,0.2);
    color:           rgba(255,255,255,0.85);
    border-radius:   6px;
    width:           30px;
    height:          26px;
    font-size:       0.88rem;
    cursor:          pointer;
    z-index:         10;
    display:         flex;
    align-items:     center;
    justify-content: center;
    transition:      background 0.15s;
    padding:         0;
}
.fs-overlay-btn:hover { background: rgba(255,255,255,0.18); }

/* Popout mode — hide canvas col in main page; un-sticky the row */
.canvas-col.popout-hidden { display: none; }
.preview-canvas-row.popout-active {
    position:   static;
    box-shadow: none;
}

/* Fullscreen mode — canvas fills viewport; controls overlay at bottom */
#fullscreen-shell:fullscreen,
#fullscreen-shell:-webkit-full-screen {
    display:    block;
    position:   relative;
    background: #000;
    width:      100vw;
    height:     100vh;
    padding:    0;
    overflow:   hidden;
}

#fullscreen-shell:fullscreen .canvas-wrapper,
#fullscreen-shell:-webkit-full-screen .canvas-wrapper {
    position:      absolute;
    top:           0;
    left:          0;
    width:         100%;
    height:        100%;
    aspect-ratio:  auto;  /* let explicit w/h take over */
    border:        none;
    border-radius: 0;
    box-shadow:    none;
}

#fullscreen-shell:fullscreen .audio-controls-bar,
#fullscreen-shell:-webkit-full-screen .audio-controls-bar {
    position:        absolute;
    bottom:          0;
    left:            0;
    right:           0;
    width:           100%;
    background:      rgba(0,0,0,0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border:          none;
    border-radius:   0;
    border-top:      1px solid rgba(255,255,255,0.1);
    z-index:         20;
    transition:      opacity 0.35s ease;
}

#fullscreen-shell:fullscreen .audio-controls-bar.fs-hidden,
#fullscreen-shell:-webkit-full-screen .audio-controls-bar.fs-hidden {
    opacity:        0;
    pointer-events: none;
}

/* Controls beside canvas */
.preview-controls {
    flex:      1 1 260px;
    display:   flex;
    flex-direction: column;
    gap:       1rem;
}

.playback-row {
    display: flex;
    gap:     0.5rem;
}

/* Progress bar */
.rec-progress-wrap {
    margin-top: 0.5rem;
}

.rec-progress-wrap.hidden { display: none; }

.progress-track {
    background:    rgba(255,255,255,0.08);
    border-radius: 4px;
    height:        6px;
    overflow:      hidden;
    margin-bottom: 0.4rem;
}

.progress-fill {
    background:    linear-gradient(90deg, var(--purple), var(--cyan));
    height:        100%;
    width:         0%;
    border-radius: 4px;
    transition:    width 0.4s;
}

/* Shimmer pulse while FFmpeg converts server-side (duration unknown) */
@keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position:  200% center; }
}

.progress-fill.indeterminate {
    width:               82% !important;
    background:          linear-gradient(90deg, var(--purple) 25%, var(--cyan) 50%, var(--pink) 75%, var(--purple) 100%);
    background-size:     200% auto;
    animation:           shimmer 1.4s linear infinite;
    transition:          none;
}

.progress-text {
    font-size: 0.8rem;
    color:     var(--text-muted);
}

/* Theme description */
.theme-display {
    background:    rgba(6,182,212,0.06);
    border:        1px solid rgba(6,182,212,0.2);
    border-radius: 8px;
    padding:       0.75rem 1rem;
    font-size:     0.88rem;
    color:         var(--cyan);
    font-style:    italic;
    min-height:    2.5rem;
}

.theme-display::before {
    content: '"';
    font-size: 1.3rem;
    line-height: 0;
    vertical-align: -0.3rem;
    margin-right: 0.2rem;
    opacity: 0.5;
}

/* ── Controls sub-heading ────────────────────────────────────────────────────── */
.ctrl-heading {
    font-size:      0.75rem;
    font-weight:    700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color:          var(--text-muted);
    margin-bottom:  0.6rem;
}

/* ── Checkbox toggle rows ────────────────────────────────────────────────────── */
.toggle-group {
    display:        flex;
    flex-direction: column;
    gap:            0.5rem;
}

.toggle-row {
    display:     flex;
    align-items: center;
    gap:         0.55rem;
    cursor:      pointer;
    font-size:   0.9rem;
    color:       var(--text);
    user-select: none;
}

.toggle-row input[type="checkbox"] {
    width:         17px;
    height:        17px;
    accent-color:  var(--purple);
    cursor:        pointer;
    flex-shrink:   0;
}



/* ── AI Customise panel ──────────────────────────────────────────────────────── */
.ai-customise-panel select {
    padding: 0.45rem 0.7rem;
}

.color-grid {
    display:        flex;
    flex-direction: column;
    gap:            0.55rem;
    margin-bottom:  0.25rem;
}

.color-swatch-row {
    display:     flex;
    align-items: center;
    gap:         0.75rem;
}

.extra-lock-label {
    display:     flex;
    align-items: center;
    gap:         2px;
    flex-shrink: 0;
    cursor:      pointer;
    font-size:   0.7rem;
    color:       var(--text-muted);
}

.color-swatch-label {
    font-size:      0.8rem;
    font-weight:    600;
    color:          var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    min-width:      96px;
    flex-shrink:    0;
}

input[type="color"].color-swatch {
    -webkit-appearance: none;
    width:         42px;
    height:        30px;
    border:        1px solid var(--border);
    border-radius: 6px;
    background:    none;
    cursor:        pointer;
    padding:       2px;
    flex-shrink:   0;
}

input[type="color"].color-swatch::-webkit-color-swatch-wrapper { padding: 0; border-radius: 4px; }
input[type="color"].color-swatch::-webkit-color-swatch         { border: none; border-radius: 4px; }

/* ── Utility ──────────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

.divider {
    border:     none;
    border-top: 1px solid var(--border);
    margin:     1rem 0;
}

/* ── Format selector ─────────────────────────────────────────────────────────── */
.format-row {
    display:     flex;
    align-items: center;
    gap:         0.6rem;
}

.format-label {
    font-size:      0.8rem;
    font-weight:    600;
    color:          var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink:    0;
}

.format-btns {
    display: flex;
    gap:     0.35rem;
}

.format-btn {
    padding:       0.3rem 0.75rem;
    font-size:     0.8rem;
    font-weight:   600;
    background:    rgba(255,255,255,0.05);
    color:         var(--text-muted);
    border:        1px solid var(--border);
    border-radius: 20px;
    cursor:        pointer;
    transition:    background 0.15s, color 0.15s, border-color 0.15s;
}
.format-btn:hover {
    background:   rgba(255,255,255,0.1);
    color:        var(--text);
}
.format-btn.active {
    background:   rgba(124,58,237,0.25);
    color:        var(--purple);
    border-color: var(--purple);
}

/* ── Geometry editor ──────────────────────────────────────────────────────────── */
.geometry-panel #shape-list {
    display:        flex;
    flex-direction: column;
    gap:            0.6rem;
    margin-bottom:  0.75rem;
    max-height:     340px;
    overflow-y:     auto;
    padding-right:  2px;
}

.shape-row {
    background:    rgba(255,255,255,0.04);
    border:        1px solid var(--border);
    border-radius: 10px;
    padding:       0.55rem 0.7rem 0.6rem;
}

.shape-row-head {
    display:     flex;
    align-items: center;
    gap:         0.5rem;
    margin-bottom: 0.45rem;
}

.shape-num {
    font-size:   0.75rem;
    font-weight: 700;
    color:       var(--text-muted);
    width:       1.4rem;
    text-align:  right;
    flex-shrink: 0;
}

.shape-field {
    flex:          1;
    padding:       0.28rem 0.5rem;
    font-size:     0.82rem;
    background:    var(--surface);
    color:         var(--text);
    border:        1px solid var(--border);
    border-radius: 6px;
    cursor:        pointer;
    min-width:     0;
}

.shape-remove-btn {
    background:    transparent;
    border:        1px solid rgba(255,80,80,0.4);
    color:         rgba(255,100,100,0.8);
    border-radius: 6px;
    width:         26px;
    height:        26px;
    font-size:     1rem;
    line-height:   1;
    cursor:        pointer;
    flex-shrink:   0;
    transition:    background 0.15s, color 0.15s;
    padding:       0;
}
.shape-remove-btn:hover {
    background: rgba(255,80,80,0.2);
    color:      #ff6464;
}

.shape-row-controls {
    display:               grid;
    grid-template-columns: repeat(4, 1fr);
    gap:                   0.4rem;
}

.shape-slider-wrap {
    display:        flex;
    flex-direction: column;
    gap:            0.2rem;
    align-items:    center;
}

.shape-slider-wrap span {
    font-size:      0.68rem;
    font-weight:    600;
    color:          var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.shape-slider-wrap input[type="range"] {
    width:   100%;
    height:  3px;
    margin:  0;
    cursor:  pointer;
    accent-color: var(--cyan);
}

/* ── Mobile: only canvas sticky, not the whole preview row ──────────────────── */
@media (max-width: 700px) {
    /* Dissolve the row wrapper so its children become direct flex items of
       preview-section. This lets canvas-col be sticky across the full page
       scroll height rather than being constrained to its parent's height.   */
    .preview-canvas-row {
        display: contents;
    }
    .canvas-col {
        position:   sticky;
        top:        0;
        z-index:    50;
        background: var(--bg);
        padding:    0.5rem 0;
    }
}

/* ── Inline hex color input ──────────────────────────────────────────────────── */
.color-hex-input {
    width:          76px;
    padding:        0.22rem 0.4rem;
    font-size:      0.74rem;
    font-family:    'Courier New', monospace;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background:     rgba(255,255,255,0.06);
    border:         1px solid var(--border);
    border-radius:  5px;
    color:          var(--text);
    flex-shrink:    0;
    /* override the generic input[type="text"] rule */
    width:          76px !important;
    padding:        0.22rem 0.4rem !important;
}

.color-hex-input:focus {
    outline:      none;
    border-color: var(--purple);
    box-shadow:   0 0 0 2px rgba(124,58,237,0.2);
}

/* ── Text layer editor ───────────────────────────────────────────────────────── */
#text-layer-list {
    display:        flex;
    flex-direction: column;
    gap:            0.6rem;
    margin-bottom:  0.25rem;
    max-height:     400px; /* ~5 collapsed rows; 2 expanded rows */
    overflow-y:     auto;
    overflow-x:     hidden;
    padding-right:  4px;
}

.text-layer-row {
    background:  rgba(255,255,255,0.04);
    border:      1px solid var(--border);
    border-radius: 10px;
    overflow:    hidden;
    flex-shrink: 0; /* prevent rows from compressing inside the scrollable list */
}

.text-layer-head {
    display:     flex;
    align-items: center;
    gap:         0.45rem;
    padding:     0.5rem 0.6rem;
    cursor:      pointer;
    user-select: none;
}

.text-layer-vis-btn {
    background:    none;
    border:        1px solid var(--border);
    color:         var(--text-muted);
    border-radius: 5px;
    width:         24px;
    height:        24px;
    font-size:     0.78rem;
    line-height:   1;
    cursor:        pointer;
    flex-shrink:   0;
    transition:    color 0.15s, border-color 0.15s;
    padding:       0;
}
.text-layer-vis-btn.active {
    color:         var(--cyan);
    border-color:  var(--cyan);
}

.text-layer-name {
    font-size:   0.82rem;
    font-weight: 600;
    color:       var(--text);
    flex:        1;
    min-width:   0;
    overflow:    hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-layer-expand-btn {
    background:  none;
    border:      none;
    color:       var(--text-muted);
    font-size:   0.75rem;
    cursor:      pointer;
    flex-shrink: 0;
    padding:     0 2px;
    transition:  transform 0.15s;
}
.text-layer-expand-btn.open { transform: rotate(180deg); }

.text-layer-remove-btn {
    background:    transparent;
    border:        1px solid rgba(255,80,80,0.35);
    color:         rgba(255,100,100,0.75);
    border-radius: 5px;
    width:         24px;
    height:        24px;
    font-size:     0.95rem;
    line-height:   1;
    cursor:        pointer;
    flex-shrink:   0;
    padding:       0;
    transition:    background 0.15s, color 0.15s;
}
.text-layer-remove-btn:hover {
    background: rgba(255,80,80,0.18);
    color:      #ff6464;
}

.text-layer-body {
    padding:    0 0.65rem 0.65rem;
    display:    none;
    flex-direction: column;
    gap:        0.55rem;
}
.text-layer-body.open { display: flex; }

.text-layer-input {
    width:         100%;
    padding:       0.35rem 0.55rem;
    font-size:     0.88rem;
    background:    var(--surface);
    color:         var(--text);
    border:        1px solid var(--border);
    border-radius: 6px;
    font-family:   inherit;
}
.text-layer-input:focus {
    outline:      none;
    border-color: var(--purple);
    box-shadow:   0 0 0 2px rgba(124,58,237,0.2);
}

.text-opt-label {
    font-size:      0.72rem;
    font-weight:    600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color:          var(--text-muted);
    display:        block;
    margin-bottom:  0.2rem;
}

.text-layer-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.45rem;
}

.text-layer-sliders {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.4rem;
}

.text-slider-wrap {
    display:        flex;
    flex-direction: column;
    gap:            0.15rem;
    align-items:    center;
}

.text-slider-wrap span {
    font-size:      0.66rem;
    font-weight:    600;
    color:          var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.text-slider-wrap input[type="range"] {
    width:        100%;
    height:       3px;
    margin:       0;
    accent-color: var(--purple);
}

.text-color-row {
    display:     flex;
    align-items: center;
    gap:         0.5rem;
}

.text-bold-row {
    display:     flex;
    align-items: center;
    gap:         0.4rem;
    font-size:   0.85rem;
    color:       var(--text);
    cursor:      pointer;
}
.text-bold-row input[type="checkbox"] {
    width:        15px;
    height:       15px;
    accent-color: var(--purple);
    cursor:       pointer;
}


/* ── Randomize / section heading rows ───────────────────────────────────────── */
.ctrl-heading-row {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    margin-bottom:   0.6rem;
}

/* ── Project toolbar ─────────────────────────────────────────────────────────── */

.project-toolbar {
    position:        fixed;
    top:             0;
    right:           0;
    z-index:         9999;
    display:         flex;
    align-items:     center;
    gap:             0.4rem;
    padding:         0.3rem 0.6rem;
    background:      rgba(10, 5, 20, 0.88);
    backdrop-filter: blur(8px);
    border-bottom:   1px solid rgba(255,255,255,0.06);
    border-left:     1px solid rgba(255,255,255,0.06);
    border-radius:   0 0 0 8px;
}

.project-toolbar-btn {
    font-size:  0.73rem;
    padding:    0.25rem 0.6rem;
}

.project-reset-btn {
    border-color: rgba(239,68,68,0.45);
    color:        rgba(255,120,120,0.9);
}
.project-reset-btn:hover {
    border-color: rgba(239,68,68,0.7);
    color:        #f87171;
}

#session-status {
    font-size:    0.75rem;
    color:        var(--cyan);
    margin-left:  0.5rem;
    opacity:      0;
    transition:   opacity 0.4s;
}

#session-status.visible {
    opacity: 1;
}

/* ── Lyric Editor ────────────────────────────────────────────────────────────── */

#lyric-editor-section {
    padding:    2rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.06);
    max-width:  1400px;
    margin:     0 auto;
}

.lyric-editor-header {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    margin-bottom:   1.1rem;
}

.lyric-editor-heading {
    font-size:   1.05rem;
    font-weight: 700;
    margin:      0;
    letter-spacing: 0.03em;
}

#timeline-wrap {
    background:    #0b0b1c;
    border:        1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    overflow:      hidden;
    margin-bottom: 1.25rem;
}

#timeline-controls {
    display:       flex;
    align-items:   center;
    gap:           0.5rem;
    padding:       0.4rem 0.75rem;
    background:    #12122a;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    font-size:     0.78rem;
}

#timeline-time-display {
    font-family: monospace;
    font-size:   0.85rem;
    color:       var(--cyan);
    font-weight: 600;
    min-width:   4.5em;
}

#timeline-zoom-label {
    font-size:   0.72rem;
    color:       var(--text-muted);
    min-width:   3.8em;
    text-align:  center;
}

.timeline-zoom-btn {
    background:    rgba(255,255,255,0.06);
    border:        1px solid rgba(255,255,255,0.15);
    color:         var(--text);
    border-radius: 5px;
    width:         24px;
    height:        24px;
    font-size:     1rem;
    line-height:   1;
    cursor:        pointer;
    padding:       0;
    display:       flex;
    align-items:   center;
    justify-content: center;
    flex-shrink:   0;
}
.timeline-zoom-btn:hover { background: rgba(255,255,255,0.12); }

#timeline-ruler {
    display:    block;
    background: #12122a;
    cursor:     default;
    /* width set by JS to match track width */
}

#timeline-scroll {
    overflow-x:  auto;
    overflow-y:  hidden;
    height:      104px;  /* 76px track + 28px ruler — overridden by JS */
    min-height:  104px;
    position:    relative;
    background:  #09091a;
    transition:  height 0.2s ease;
}

#timeline-track {
    position:   relative;
    height:     76px;   /* overridden by JS */
    min-width:  100%;
}

.lyric-block {
    position:    absolute;
    top:         10px;
    height:      60px;
    border-radius: 6px;
    cursor:      grab;
    user-select: none;
    display:     flex;
    align-items: center;
    padding:     0 2px 0 10px;
    font-size:   0.72rem;
    font-weight: 600;
    white-space: nowrap;
    overflow:    hidden;
    box-sizing:  border-box;
    border:      2px solid transparent;
    transition:  border-color 0.12s, box-shadow 0.12s;
}

.lyric-block:active { cursor: grabbing; }

.lyric-block.selected {
    border-color: rgba(255,255,255,0.85);
    z-index:      10;
    box-shadow:   0 0 0 2px rgba(255,255,255,0.15);
}

.lyric-block__text {
    flex:            1;
    overflow:        hidden;
    text-overflow:   ellipsis;
    pointer-events:  none;
    color:           #fff;
    text-shadow:     0 1px 3px rgba(0,0,0,0.7);
}

.lyric-block__resize {
    width:       14px;
    min-width:   14px;
    height:      100%;
    cursor:      ew-resize;
    display:     flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity:     0.6;
}

.lyric-block__resize::after {
    content:       '';
    width:         3px;
    height:        20px;
    background:    rgba(255,255,255,0.55);
    border-radius: 2px;
    display:       block;
}

.lyric-block__del {
    width:         16px;
    min-width:     16px;
    height:        16px;
    background:    rgba(220,50,50,0.35);
    border:        1px solid rgba(255,80,80,0.5);
    border-radius: 3px;
    color:         rgba(255,200,200,0.95);
    font-size:     0.6rem;
    line-height:   1;
    cursor:        pointer;
    padding:       0;
    flex-shrink:   0;
    opacity:       0;
    transition:    opacity 0.12s;
    margin-right:  2px;
    display:       flex;
    align-items:   center;
    justify-content: center;
}
.lyric-block:hover .lyric-block__del,
.lyric-block.selected .lyric-block__del {
    opacity: 1;
}

/* Channel separators and labels */
.channel-sep {
    position:       absolute;
    left:           0;
    right:          0;
    height:         1px;
    background:     rgba(255,255,255,0.08);
    pointer-events: none;
    z-index:        3;
}

.channel-label {
    position:        absolute;
    left:            0;
    width:           46px;
    display:         flex;
    align-items:     center;
    justify-content: center;
    font-size:       0.6rem;
    font-weight:     700;
    color:           rgba(255,255,255,0.25);
    text-transform:  uppercase;
    letter-spacing:  0.06em;
    background:      rgba(9,9,26,0.88);
    border-right:    1px solid rgba(255,255,255,0.07);
    pointer-events:  none;
    z-index:         4;
    user-select:     none;
}

#timeline-playhead {
    position:       absolute;
    top:            -28px;   /* extends up into ruler canvas area */
    bottom:         0;
    width:          2px;
    background:     #ec4899;
    pointer-events: none;
    z-index:        20;
    display:        none;
}

/* Properties panel */
#lyric-props-panel {
    background:    rgba(255,255,255,0.03);
    border:        1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding:       1.25rem;
}

.lyric-props-header {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    margin-bottom:   1rem;
}

.lyric-props-header span {
    font-size:      0.8rem;
    font-weight:    700;
    color:          var(--cyan);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    overflow:       hidden;
    text-overflow:  ellipsis;
    white-space:    nowrap;
}

.lyric-props-header button {
    background:  none;
    border:      none;
    color:       var(--text-muted);
    cursor:      pointer;
    font-size:   1rem;
    line-height: 1;
    padding:     0;
    flex-shrink: 0;
    margin-left: 0.5rem;
}

.props-grid {
    display:               grid;
    grid-template-columns: 1fr 1fr;
    gap:                   0.85rem 1.5rem;
}

.props-row {
    display:        flex;
    flex-direction: column;
    gap:            0.3rem;
}

.props-row.full-width {
    grid-column: 1 / -1;
}

.props-row > label:first-child {
    font-size:      0.7rem;
    color:          rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Lyric export options panel */
#lyric-export-panel {
    margin-bottom: 1rem;
}

.lyric-export-options {
    display:       flex;
    align-items:   center;
    flex-wrap:     wrap;
    gap:           0.75rem;
    background:    rgba(255,255,255,0.03);
    border:        1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding:       0.75rem 1rem;
}

.lyric-export-title {
    font-size:      0.72rem;
    font-weight:    700;
    color:          var(--cyan);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-right:   0.25rem;
}

.lyric-export-check {
    display:     flex;
    align-items: center;
    gap:         0.35rem;
    font-size:   0.78rem;
    color:       var(--text-muted);
    cursor:      pointer;
    user-select: none;
}

.lyric-export-check input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--cyan);
}

/* Tap-to-Time panel */
#tap-panel {
    background:    rgba(255,255,255,0.03);
    border:        1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding:       2rem 1.5rem;
    text-align:    center;
    margin-bottom: 1.25rem;
}

#tap-countdown-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

#tap-count-num {
    font-size:   5rem;
    font-weight: 900;
    color:       var(--cyan);
    line-height: 1;
    min-width:   1ch;
}

.tap-count-label {
    font-size:   0.85rem;
    color:       var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

#tap-active-display {
    display:        flex;
    flex-direction: column;
    align-items:    center;
    gap:            0.4rem;
}

.tap-progress {
    font-size:      0.75rem;
    color:          var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom:  0.5rem;
}

#tap-current-line {
    font-size:   1.75rem;
    font-weight: 800;
    color:       #fff;
    min-height:  2.5rem;
    margin:      0 0 0.25rem;
}

#tap-next-wrap {
    font-size:  0.85rem;
    color:      var(--text-muted);
    min-height: 1.4rem;
    margin-bottom: 1.5rem;
}

#tap-btn {
    font-size:  1.1rem;
    padding:    0.85rem 3.5rem;
    min-width:  180px;
}

.tap-hint {
    font-size:    0.75rem;
    color:        var(--text-muted);
    margin-top:   0.35rem;
}

.tap-hint kbd {
    background:    rgba(255,255,255,0.1);
    border:        1px solid rgba(255,255,255,0.2);
    border-radius: 3px;
    padding:       1px 5px;
    font-family:   monospace;
    font-size:     0.9em;
}

.props-row input[type="range"] {
    flex:   0 0 auto;
    width:  100%;
    height: 4px;
    margin: 0;
}

.props-row input[type="color"] {
    width:         52px;
    height:        34px;
    border:        1px solid rgba(255,255,255,0.2);
    border-radius: 5px;
    cursor:        pointer;
    background:    none;
    padding:       2px;
}

/* ── Footer ──────────────────────────────────────────────────────────────────── */
footer {
    text-align: center;
    color:      var(--text-muted);
    font-size:  0.8rem;
    padding:    2rem 0 1rem;
    opacity:    0.6;
}