/* ════════════════════════════════════════════════════════════════════
   REVEL FORCE — Music Library Styles  (css/music.css)
   Phase 3.5b: Top-level persistent instrument selector.
               OSMD family bar removed; chair picker remains.
════════════════════════════════════════════════════════════════════ */

/* ── MXL FILE CHIP + BADGE ───────────────────────────────────────── */
.file-chip-mxl {
  color: #a78bfa;
  border-color: rgba(167, 139, 250, 0.4);
  background: rgba(167, 139, 250, 0.07);
}
.badge-mxl {
  background: rgba(167, 139, 250, 0.12);
  color: #c4b5fd;
  border: 1px solid rgba(167, 139, 250, 0.35);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.28em 0.75em;
  border-radius: 50px;
}

/* ════════════════════════════════════════════════════════════════════
   TOP-LEVEL INSTRUMENT SELECTOR
   Sticky bar just above the song content. Gold-toned to signal it's
   a page-wide control rather than a section-level filter.
════════════════════════════════════════════════════════════════════ */
#page-instr-selector {
  position: sticky;
  top: 64px;        /* clears the nav bar */
  z-index: 40;
  background: rgba(2, 4, 8, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bdr-gold);
  padding: 0.75rem 0;
  margin: 0 0 1.75rem;
}

/* ── Collapsible instrument selector ──────────────────────────── */
.page-instr-bar {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-instr-toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0.25rem;
}

.page-instr-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.page-instr-current-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.42rem 0.85rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--bdr-gold);
  background: rgba(200, 160, 32, 0.1);
  color: var(--gold);
  cursor: pointer;
  transition: all var(--t);
}
.page-instr-current-btn:hover {
  background: rgba(200, 160, 32, 0.18);
}

.page-instr-chevron {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
  transition: transform var(--t);
}
.page-instr-open .page-instr-chevron {
  transform: rotate(180deg);
}

/* Options panel — hidden by default, shown on open */
.page-instr-options {
  display: none;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.6rem 0.25rem 0.15rem;
  border-top: 1px solid rgba(200, 160, 32, 0.15);
  margin-top: 0.5rem;
}
.page-instr-options.open { display: flex; }

.page-instr-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.42rem 0.85rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--bdr-gold);
  background: rgba(200, 160, 32, 0.05);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--t);
  white-space: nowrap;
}
.page-instr-btn:hover {
  color: var(--gold);
  border-color: rgba(200, 160, 32, 0.6);
  background: rgba(200, 160, 32, 0.1);
}
.page-instr-btn.active {
  color: var(--void);
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: var(--glow-gold);
}
.page-instr-btn[data-family="all"] { border-style: dashed; }
.page-instr-btn[data-family="all"].active { border-style: solid; }

/* ── SETLIST PAGE ────────────────────────────────────────────────── */
.setlist-picker {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.setlist-pill {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.55rem 1.2rem;
  border-radius: 50px;
  border: 1px solid var(--bdr-gold);
  background: rgba(200, 160, 32, 0.06);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--t);
}
.setlist-pill:hover {
  color: var(--gold);
  border-color: rgba(200, 160, 32, 0.55);
  background: rgba(200, 160, 32, 0.12);
}
.setlist-pill.active {
  color: var(--void);
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: var(--glow-gold);
}

.setlist-pill.virtual {
  border-style: dashed;
  opacity: 0.75;
}
.setlist-pill.virtual.active {
  opacity: 1;
}

/* ── SETLIST TABLE ───────────────────────────────────────────────── */
.setlist-table-wrap {
  background: var(--card-bg);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-md);
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.setlist-table-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--bdr-gold);
  gap: 1rem;
  flex-wrap: wrap;
}
.setlist-table-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.setlist-table-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}
.setlist-table-actions { display: flex; gap: 0.6rem; align-items: center; }

.song-row {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto auto;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid rgba(200, 160, 32, 0.08);
  transition: background var(--t);
  cursor: pointer;
  text-decoration: none;
}
.song-row:last-child { border-bottom: none; }
.song-row:hover { background: rgba(200, 160, 32, 0.05); }
.song-row.dragging { opacity: 0.45; background: rgba(200, 160, 32, 0.08); }
.song-row.drag-over { border-top: 2px solid var(--gold); }

.song-row-num {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  color: var(--text-dim);
  text-align: right;
  user-select: none;
}
.song-row-drag {
  cursor: grab;
  color: var(--text-dim);
  display: none;
  align-items: center;
  justify-content: center;
}
.song-row-drag:active { cursor: grabbing; }
.song-row-drag svg { width: 14px; height: 14px; }
.practice-mode .song-row-num  { display: none; }
.practice-mode .song-row-drag { display: flex; }

.song-row-body { min-width: 0; }
.song-row-title {
  font-weight: 600;
  color: var(--text-hi);
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.song-row-composer {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 0.1rem;
}
.song-row-files { display: flex; gap: 0.35rem; flex-shrink: 0; }
.file-chip {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.52rem;
  letter-spacing: 0.08em;
  padding: 0.22em 0.55em;
  border-radius: 3px;
  border: 1px solid;
  text-transform: uppercase;
  font-weight: 700;
}
.file-chip-pdf  { color: var(--orange); border-color: rgba(224,112,24,0.35); background: rgba(224,112,24,0.06); }
.file-chip-mp3  { color: var(--cyan);   border-color: rgba(0,204,220,0.35);  background: rgba(0,204,220,0.06); }
.file-chip-mid  { color: var(--blue);   border-color: rgba(72,152,248,0.35); background: rgba(72,152,248,0.06); }
.file-chip-none { color: var(--text-dim); border-color: var(--text-dim); background: transparent; opacity: 0.5; }

.song-row-arrow { color: var(--text-dim); flex-shrink: 0; transition: color var(--t); }
.song-row:hover .song-row-arrow { color: var(--gold); }
.song-row-arrow svg { width: 14px; height: 14px; }

/* ── WARM-UP ROW — structural, pinned above every setlist ───────────── */
.warmup-rows { border-bottom: 1px solid rgba(200, 160, 32, 0.15); }
.song-row-warmup { background: rgba(0, 204, 220, 0.04); }
.song-row-warmup:hover { background: rgba(0, 204, 220, 0.09); }
.song-row-warmup-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
}
.song-row-warmup-badge svg { width: 16px; height: 16px; }
.warmup-tag {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(0, 204, 220, 0.35);
  background: rgba(0, 204, 220, 0.08);
  padding: 0.18em 0.5em;
  border-radius: 3px;
  vertical-align: middle;
  margin-left: 0.3rem;
}

.practice-save-bar {
  display: none;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.5rem;
  border-top: 1px solid var(--bdr-gold);
  background: rgba(200, 160, 32, 0.06);
}
.practice-save-bar.visible { display: flex; }
.practice-save-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  flex: 1;
}

/* ── SONG PAGE HEADER ────────────────────────────────────────────── */
.song-page-hd {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--bdr-gold);
}
.song-page-back {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 1rem;
  transition: color var(--t);
  text-decoration: none;
}
.song-page-back:hover { color: var(--gold); }
.song-page-back svg { width: 13px; height: 13px; }

/* ── SONG PAGE HEADER: back link + prev/next-in-setlist row ────────── */
.song-page-hd-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.song-page-hd-top .song-page-back { margin-bottom: 0; }

.song-setlist-nav {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.song-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-sm);
  padding: 0.4rem 0.7rem;
  text-decoration: none;
  transition: all var(--t);
  background: rgba(200, 160, 32, 0.04);
}
.song-nav-btn svg { width: 12px; height: 12px; flex-shrink: 0; }
.song-nav-btn:hover:not(.disabled) { color: var(--gold); border-color: var(--gold); background: rgba(200,160,32,0.1); }
.song-nav-btn.disabled { opacity: 0.35; pointer-events: none; }
.song-nav-position {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  white-space: nowrap;
}

/* Compact variant used inside the OSMD toolbar (icons only, no labels) */
.song-setlist-nav-compact { gap: 0.35rem; }
.song-setlist-nav-compact .song-nav-btn { padding: 0.35rem 0.5rem; }
.song-setlist-nav-compact .song-nav-position { font-size: 0.56rem; }

@media (max-width: 640px) {
  .song-page-hd-top { flex-direction: column; align-items: flex-start; }
}
.song-page-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  color: var(--text-hi);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}
.song-page-composer { font-size: 1rem; color: var(--text-muted); font-style: italic; }
.song-page-badges   { display: flex; gap: 0.5rem; margin-top: 0.75rem; flex-wrap: wrap; }

/* ── FULL SCORE ROW ──────────────────────────────────────────────── */
.full-score-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  background: rgba(200, 160, 32, 0.05);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-md);
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.full-score-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  flex: 1;
}
.full-score-label svg,
.full-score-icon svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

/* ── OSMD VIEWER ─────────────────────────────────────────────────── */
.osmd-viewer {
  background: var(--card-bg);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-md);
  overflow: hidden;
  backdrop-filter: blur(8px);
  margin-bottom: 1.5rem;
}
.osmd-viewer-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--bdr-gold);
  gap: 0.75rem;
  flex-wrap: wrap;
  background: rgba(167, 139, 250, 0.04);
}
.osmd-viewer-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #a78bfa;
}
/* Groups the PDF button + zoom controls on the right side of the viewer header */
.osmd-viewer-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.osmd-pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.58rem;
}

/* Single audio card that appears below the OSMD viewer for the selected instrument */
.osmd-audio-card {
  margin-bottom: 1.5rem;
}
.osmd-audio-card .audio-player {
  border-radius: var(--r-md);
  border: 1px solid var(--bdr-gold);
  background: var(--card-bg);
}

.osmd-zoom-btns { display: flex; gap: 0.35rem; }
.osmd-zoom-btns .audio-dl-btn {
  padding: 0.35rem 0.65rem;
  font-size: 0.9rem;
  line-height: 1;
  font-family: monospace;
  min-width: 30px;
  text-align: center;
  justify-content: center;
}

/* ── OSMD CONTROLS (chair picker only — family moved to top bar) ─── */
.osmd-controls {
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid rgba(200, 160, 32, 0.1);
  background: rgba(2, 4, 8, 0.3);
  min-height: 0;
  /* collapses to nothing when no chairs to show */
  transition: padding var(--t);
}
/* Hide the bottom border when controls are effectively empty */
.osmd-controls:empty,
.osmd-controls:has(#osmd-chair-row:empty) {
  padding: 0;
  border-bottom: none;
}

/* Chair picker row */
.osmd-chair-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  padding: 0.3rem 0;
}
.chair-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 0.2rem;
}
.chair-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  min-width: 2.2rem;
  padding: 0.38rem 0.6rem;
  border-radius: var(--r-sm);
  border: 1px solid rgba(167, 139, 250, 0.4);
  background: rgba(167, 139, 250, 0.06);
  color: #c4b5fd;
  cursor: pointer;
  transition: all var(--t);
  text-align: center;
}
.chair-btn:hover  { background: rgba(167,139,250,0.14); border-color: #a78bfa; }
.chair-btn.active {
  color: var(--void);
  background: #a78bfa;
  border-color: #a78bfa;
  box-shadow: 0 0 10px rgba(167,139,250,0.4);
}

/* ── OSMD CANVAS ─────────────────────────────────────────────────── */
.osmd-viewer-body { position: relative; min-height: 120px; }
.osmd-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.osmd-canvas {
  padding: 1rem 0.5rem;
  overflow-x: auto;
  background: #060a12;
  scrollbar-width: thin;
  scrollbar-color: rgba(200,160,32,0.3) transparent;
}
.osmd-canvas::-webkit-scrollbar        { height: 6px; }
.osmd-canvas::-webkit-scrollbar-track  { background: transparent; }
.osmd-canvas::-webkit-scrollbar-thumb  { background: rgba(200,160,32,0.3); border-radius: 3px; }
.osmd-canvas svg { display: block; }

/* ── OSMD LIGHT MODE (score-only theme toggle) ──────────────────────── */
.osmd-light-mode .osmd-canvas       { background: #ffffff; }
.osmd-light-mode .osmd-viewer-body  { background: #ffffff; }
.osmd-light-mode #osmd-theme-btn    { color: var(--gold); border-color: var(--gold); }

/* ── OSMD FULLSCREEN ─────────────────────────────────────────────────
   Fullscreen is requested on the viewer card itself (not the whole page),
   so the toolbar — zoom, theme, prev/next — stays visible and usable while
   portal chrome (nav, sidebar) is hidden by the browser. */
#osmd-viewer-card:fullscreen,
#osmd-viewer-card:-webkit-full-screen {
  display: flex;
  flex-direction: column;
  border-radius: 0;
  margin: 0;
}
#osmd-viewer-card:fullscreen .osmd-viewer-body,
#osmd-viewer-card:-webkit-full-screen .osmd-viewer-body {
  flex: 1;
  overflow: auto;
}
#osmd-viewer-card:fullscreen .osmd-canvas,
#osmd-viewer-card:-webkit-full-screen .osmd-canvas {
  min-height: 100%;
}
#osmd-viewer-card.osmd-light-mode:fullscreen,
#osmd-viewer-card.osmd-light-mode:-webkit-full-screen {
  background: #ffffff;
}

/* ── INSTRUMENT AUDIO PANEL ──────────────────────────────────────── */
.instr-audio-panel { margin-bottom: 1.5rem; }
.instr-audio-sec {
  background: var(--card-bg);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-md);
  overflow: hidden;
  backdrop-filter: blur(8px);
  animation: fadeSlideUp 0.22s ease both;
}
.instr-audio-sec-hd {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--bdr-gold);
}
.instr-audio-sec > .audio-player { padding: 0.85rem 1.4rem; }
.instr-audio-sec > .midi-row     { padding: 0.85rem 1.4rem; }
.instr-audio-sec > .audio-player + .midi-row {
  border-top: 1px solid rgba(200,160,32,0.08);
}

/* ── PER-INSTRUMENT SECTIONS (legacy / PDF tab) ──────────────────── */
.instr-section {
  background: var(--card-bg);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 1.25rem;
  backdrop-filter: blur(8px);
  transition: all var(--t);
}
.instr-section:hover { border-color: rgba(200,160,32,0.5); }
.instr-section-hd {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--bdr-gold);
}
.instr-section-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-hi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  flex: 1;
}
.instr-section-chips { display: flex; gap: 0.4rem; }
.instr-section-body  {
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── AUDIO PLAYER ────────────────────────────────────────────────── */
.audio-player { display: flex; flex-direction: column; gap: 0.75rem; }
.audio-player-row { display: flex; align-items: center; gap: 1rem; }
.audio-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  min-width: 70px;
}
.audio-play-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gold);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  transition: all var(--t);
  box-shadow: 0 0 12px rgba(200,160,32,0.35);
}
.audio-play-btn:hover { background: var(--gold-lt); transform: scale(1.08); }
.audio-play-btn svg   { width: 14px; height: 14px; color: var(--void); margin-left: 2px; }

.audio-scrubber-wrap { flex: 1; display: flex; flex-direction: column; gap: 0.35rem; }
.audio-scrubber {
  -webkit-appearance: none;
  appearance: none;
  width: 100%; height: 4px;
  border-radius: 2px;
  background: var(--bdr-gold);
  outline: none;
  cursor: pointer;
  background-image: linear-gradient(var(--gold), var(--gold));
  background-size: 0% 100%;
  background-repeat: no-repeat;
}
.audio-scrubber::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(200,160,32,0.7);
  border: 2px solid var(--void);
}
.audio-time {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.55rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  display: flex;
  justify-content: space-between;
}
.audio-dl-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: all var(--t);
  flex-shrink: 0;
  cursor: pointer;
  background: transparent;
}
.audio-dl-btn:hover {
  color: var(--gold);
  border-color: rgba(200,160,32,0.5);
  background: rgba(200,160,32,0.07);
}
.audio-dl-btn svg { width: 11px; height: 11px; }

/* ── PLAYBACK SPEED ──────────────────────────────────────────────── */
.audio-speed-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0 1rem 0.55rem;
  flex-wrap: wrap;
}
.audio-speed-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.5rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-right: .15rem;
  flex-shrink: 0;
}
.audio-speed-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.5rem;
  letter-spacing: .04em;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-dim);
  border-radius: 4px;
  padding: .25em .55em;
  cursor: pointer;
  transition: all var(--t);
}
.audio-speed-btn.active {
  background: rgba(200,160,32,0.12);
  border-color: var(--gold);
  color: var(--gold);
}
.audio-speed-btn:hover:not(.active) {
  border-color: rgba(255,255,255,0.25);
  color: var(--text-body);
}

/* ── MIDI ROW ────────────────────────────────────────────────────── */
.midi-row { display: flex; align-items: center; gap: 0.85rem; flex-wrap: wrap; }
.midi-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  min-width: 70px;
}
.midi-badge {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.56rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.28em 0.65em;
  border-radius: 3px;
  border: 1px solid rgba(72,152,248,0.4);
  background: rgba(72,152,248,0.07);
  color: var(--blue-lt);
}

/* ── SHEET MUSIC FRAME ───────────────────────────────────────────── */
.sheet-music-frame {
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: rgba(2,4,8,0.4);
}
.sheet-music-frame-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--bdr-gold);
  gap: 0.75rem;
  flex-wrap: wrap;
}
.sheet-music-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}
.sheet-music-loading {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sheet-music-frame iframe { width: 100%; height: 520px; border: none; display: block; background: #fff; }

/* ── ALL PARTS GRID ──────────────────────────────────────────────── */
.all-parts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}
.part-card {
  background: rgba(9,16,31,0.7);
  border: 1px solid var(--bdr-gold);
  border-radius: var(--r-sm);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all var(--t);
}
.part-card:hover { border-color: rgba(200,160,32,0.5); transform: translateY(-2px); }
.part-card-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.part-card-links { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.part-link {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25em 0.6em;
  border-radius: 3px;
  text-decoration: none;
  transition: all var(--t);
}
.part-link-mxl { background: rgba(167,139,250,0.08); color:#a78bfa;       border:1px solid rgba(167,139,250,0.3); }
.part-link-pdf { background: rgba(224,112,24,0.1);  color:var(--orange); border:1px solid rgba(224,112,24,0.3);  }
.part-link-mp3 { background: rgba(0,204,220,0.08);  color:var(--cyan);   border:1px solid rgba(0,204,220,0.3);   }
.part-link-mid { background: rgba(72,152,248,0.08); color:var(--blue);   border:1px solid rgba(72,152,248,0.3);  }
.part-link:hover { filter: brightness(1.25); transform: translateY(-1px); }

/* ── NO FILES PLACEHOLDER ────────────────────────────────────────── */
.no-files-msg { font-size: 0.84rem; color: var(--text-dim); font-style: italic; padding: 0.5rem 0; }

/* ── ANIMATIONS ──────────────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* ── RESPONSIVE ──────────────────────────────────────────────────── */
@media (max-width: 700px) {
  #page-instr-selector { top: 56px; }
  .page-instr-btn { font-size: 0.56rem; padding: 0.35rem 0.65rem; }
  .page-instr-current-btn { font-size: 0.56rem; padding: 0.35rem 0.65rem; }

  .song-row { grid-template-columns: 2rem 1fr auto; }
  .song-row-files { display: none; }

  .osmd-viewer-hd { flex-direction: column; align-items: flex-start; }
  .osmd-viewer-actions { width: 100%; justify-content: flex-start; }

  .audio-player-row { flex-wrap: wrap; }
  .sheet-music-frame iframe { height: 360px; }
  .all-parts-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 440px) {
  .all-parts-grid { grid-template-columns: 1fr; }
  .osmd-canvas    { padding: 0.5rem 0; }
}