/* ============================================
   Omnichord — Instrument-Shaped Layout
   Wide D-shape: curved top, flat bottom, speaker grill
   ============================================ */
/* Note: box-sizing reset and body styles are in site.css (site shell).
   base.css only styles the instrument content inside its window. */

#page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  font-family: var(--font);
  color: var(--text-primary);
  background: transparent;
  -webkit-user-select: none;
  user-select: none;
}

/* ============ THE INSTRUMENT BODY ============ */
#omnichord-body {
  width: 100%;
  max-width: 1060px;
  /* The classic Omnichord D-shape: big curved top, nearly flat bottom */
  border-radius: 48% 48% 4% 4% / 18% 18% 2% 2%;
  background: var(--bezel-bg, #1a1a22);
  padding: 6px;
  box-shadow:
    0 4px 20px rgba(0,0,0,0.6),
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 -2px 8px rgba(0,0,0,0.3) inset;
  position: relative;
}

#omnichord-bezel {
  border-radius: 47% 47% 3.5% 3.5% / 17% 17% 1.8% 1.8%;
  background: var(--body-bg-secondary);
  border: 1px solid var(--body-border);
  overflow: hidden;
  position: relative;
}

/* ============ BRAND STRIP ============ */
#brand-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 16px 40px 8px;
}

.brand-engraving {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--text-muted);
  opacity: 0.5;
  text-shadow: 0 1px 0 rgba(255,255,255,0.06), 0 -1px 0 rgba(0,0,0,0.4);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 10px;
  color: var(--text-primary);
  text-shadow: 0 1px 0 rgba(255,255,255,0.08), 0 -1px 0 rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.3);
}

.brand-model {
  font-family: var(--font);
  font-size: 0.55rem;
  letter-spacing: 2px;
  color: var(--text-muted);
}

/* ============ CONTROLS TRAY ============ */
#controls-tray {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 40px 6px;
  flex-wrap: wrap;
}

.tray-group {
  display: flex;
  align-items: center;
  gap: 5px;
}

.tray-group label {
  font-size: 0.55rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.tray-group select {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 0.65rem;
  font-family: var(--font);
  cursor: pointer;
  outline: none;
}

#help-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--btn-bg);
  color: var(--text-muted);
  border: 1px solid var(--btn-border);
  font-family: var(--font);
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
}
#help-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

/* ============ CUSTOM THEME PANEL ============ */
#custom-theme-panel {
  border-top: 1px solid var(--body-border);
  padding: 12px 24px;
}

#custom-theme-panel h3 {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.color-pickers {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin-bottom: 10px;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.color-row label {
  font-size: 0.6rem;
  color: var(--text-secondary);
  min-width: 60px;
}

.color-row input[type="color"] {
  width: 24px;
  height: 20px;
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  cursor: pointer;
  background: transparent;
  padding: 0;
}

.eyedrop-btn {
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  color: var(--btn-text);
  border-radius: 3px;
  padding: 1px 4px;
  cursor: pointer;
  font-size: 0.6rem;
  opacity: 0.6;
  transition: opacity 0.15s;
}
.eyedrop-btn:hover { opacity: 1; }

.palette-extract {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 10px;
}

.palette-extract input[type="text"] {
  flex: 1;
  min-width: 180px;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 4px 6px;
  font-size: 0.65rem;
  font-family: var(--font);
}

#palette-drop-zone {
  border: 1px dashed var(--btn-border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 0.6rem;
  color: var(--text-muted);
  cursor: pointer;
}
#palette-drop-zone.dragover { border-color: var(--accent-1); }

.theme-actions {
  display: flex;
  gap: 5px;
}

.theme-actions button,
.palette-extract button {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 4px 8px;
  font-size: 0.6rem;
  font-family: var(--font);
  cursor: pointer;
}
.theme-actions button:hover,
.palette-extract button:hover { background: var(--btn-bg-hover); }

/* ============ INSTRUMENT FACE ============ */
#instrument {
  padding: 0 20px;
}

/* ============ CHORD SECTION ============ */
#chord-section {
  padding: 6px 0 10px;
}

#chord-grid {
  display: grid;
  grid-template-columns: 32px repeat(12, 1fr);
  gap: 3px;
}

.chord-row-label {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.chord-btn {
  position: relative;
  padding: 8px 1px;
  border: 1px solid var(--btn-border);
  border-radius: var(--btn-radius);
  font-size: 0.6rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  text-align: center;
  transition: all 0.08s ease;
  touch-action: none;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1), inset 0 -1px 0 rgba(0,0,0,0.2);
}

.chord-btn.maj { background: var(--chord-maj-bg); color: var(--btn-text); }
.chord-btn.min { background: var(--chord-min-bg); color: var(--btn-text); }
.chord-btn.sev { background: var(--chord-sev-bg); color: var(--btn-text); }

.chord-btn.active.maj {
  background: var(--chord-maj-active);
  box-shadow: 0 0 10px var(--chord-maj-active);
  transform: scale(0.94);
}
.chord-btn.active.min {
  background: var(--chord-min-active);
  box-shadow: 0 0 10px var(--chord-min-active);
  transform: scale(0.94);
}
.chord-btn.active.sev {
  background: var(--chord-sev-active);
  box-shadow: 0 0 10px var(--chord-sev-active);
  transform: scale(0.94);
}

.chord-btn:hover { filter: brightness(1.15); }

/* ============ SONIC STRINGS ============ */
#strings-section {
  padding: 6px 0 8px;
}

.section-label {
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-muted);
  padding: 0 0 4px 2px;
  text-shadow: 0 0 8px rgba(255,255,255,0.06), 0 1px 0 rgba(255,255,255,0.04);
}

#strings-strip {
  position: relative;
  height: 100px;
  background: var(--strip-bg);
  border-radius: 5px;
  overflow: hidden;
  cursor: crosshair;
  touch-action: none;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.4), 0 1px 0 rgba(255,255,255,0.03);
}

#strings-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}

#strings-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#strings-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}

#strings-controls label {
  font-size: 0.55rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1.5px;
}

#strings-controls input[type="range"] {
  width: 80px;
  accent-color: var(--accent-1);
  height: 3px;
}

/* ============ RHYTHM SECTION ============ */
#rhythm-section {
  padding: 6px 0;
  border-top: 1px solid var(--body-border);
}

#rhythm-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

#rhythm-start-stop {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s;
  padding: 0;
}
#rhythm-start-stop:hover { background: var(--btn-bg-hover); }
#rhythm-start-stop.playing {
  background: var(--btn-active);
  box-shadow: 0 0 10px var(--btn-active);
}

#metronome-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s;
  padding: 0;
}
#metronome-btn:hover { background: var(--btn-bg-hover); }
#metronome-btn.active {
  background: var(--accent-1);
  box-shadow: 0 0 8px var(--accent-1);
  color: #fff;
}

.rhythm-param {
  display: flex;
  align-items: center;
  gap: 4px;
}

.rhythm-param label {
  font-size: 0.55rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1.5px;
}

.rhythm-param select {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 0.65rem;
  font-family: var(--font);
  cursor: pointer;
  outline: none;
}

.rhythm-param input[type="range"] {
  width: 60px;
  accent-color: var(--accent-1);
  height: 3px;
}

#tempo-display {
  font-size: 0.65rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  min-width: 24px;
}

#beat-indicator {
  display: flex;
  gap: 3px;
  margin-left: auto;
}

.beat-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--beat-dot);
  transition: all 0.06s;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.3);
}
.beat-dot.active {
  background: var(--beat-dot-active);
  box-shadow: 0 0 4px var(--beat-dot-active), inset 0 1px 2px rgba(255,255,255,0.1);
}
.beat-dot.current {
  background: var(--beat-dot-current);
  transform: scale(1.4);
  box-shadow: 0 0 8px var(--beat-dot-current), 0 0 16px var(--beat-dot-current);
}

/* ============ RECORDER SECTION ============ */
#recorder-section {
  padding: 6px 0 8px;
  border-top: 1px solid var(--body-border);
}

#recorder-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.rec-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  font-size: 0.7rem;
  font-family: var(--font);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s;
  padding: 0;
}
.rec-btn:hover { background: var(--btn-bg-hover); }

#rec-record.recording {
  background: var(--rec-active);
  color: #fff;
  box-shadow: 0 0 8px rgba(255,50,50,0.4);
  animation: rec-pulse 1s ease-in-out infinite;
}
#rec-overdub.recording {
  background: #ff8800;
  color: #fff;
}
#rec-record.counting-in {
  background: #ff8800;
  color: #fff;
  animation: rec-pulse 0.5s ease-in-out infinite;
}

@keyframes rec-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.rec-select {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 0.6rem;
  font-family: var(--font);
  cursor: pointer;
  margin: 0 2px;
}

#rec-export-wav, #rec-export-midi {
  border-radius: 4px;
  width: auto;
  padding: 0 8px;
  font-size: 0.55rem;
  letter-spacing: 1px;
}

#recorder-timeline {
  position: relative;
  height: 40px;
  background: var(--timeline-bg);
  border-radius: 4px;
  margin-top: 6px;
  overflow: hidden;
  box-shadow: inset 0 1px 4px rgba(0,0,0,0.3);
}

#timeline-canvas {
  width: 100%;
  height: 100%;
}

#playback-head {
  position: absolute;
  top: 0; left: 0;
  width: 2px;
  height: 100%;
  background: var(--timeline-head);
  box-shadow: 0 0 4px var(--timeline-head);
  transition: left 0.04s linear;
  pointer-events: none;
}

/* ============ SPEAKER GRILL ============ */
#speaker-grill {
  padding: 10px 40px 16px;
}

.grill-pattern {
  height: 40px;
  border-radius: 4px;
  /* CSS-only speaker grill — two layers for depth */
  background-image:
    radial-gradient(circle, var(--grill-dot, rgba(255,255,255,0.06)) 1px, transparent 1px),
    radial-gradient(circle, rgba(0,0,0,0.15) 1px, transparent 1px);
  background-size: 6px 6px, 6px 6px;
  background-position: 0 0, 3px 3px;
  background-color: var(--grill-bg, rgba(0,0,0,0.3));
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.4), inset 0 -1px 0 rgba(255,255,255,0.03);
}

/* ============ VOICE SELECTOR ============ */
#strings-voice {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 3px 6px;
  font-size: 0.6rem;
  font-family: var(--font);
  cursor: pointer;
  outline: none;
}
#strings-voice:hover { border-color: var(--text-secondary); }

/* ============ VIBRATO BUTTON ============ */
#vibrato-btn {
  padding: 3px 8px;
  border-radius: 3px;
  background: var(--btn-bg);
  color: var(--text-muted);
  border: 1px solid var(--btn-border);
  font-family: var(--font);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: all 0.15s;
}
#vibrato-btn:hover { color: var(--text-primary); border-color: var(--text-secondary); }
#vibrato-btn.active {
  background: var(--accent-1);
  color: #fff;
  border-color: var(--accent-1);
  box-shadow: 0 0 8px var(--accent-1);
}

/* ============ CUSTOM RANGE SLIDERS ============ */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  background: var(--btn-border, #333);
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-secondary, #aaa);
  border: 2px solid var(--btn-bg, #222);
  margin-top: -5px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
  transition: background 0.1s;
}
input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--text-primary, #fff);
}
input[type="range"]::-moz-range-track {
  height: 3px;
  background: var(--btn-border, #333);
  border-radius: 2px;
  border: none;
}
input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-secondary, #aaa);
  border: 2px solid var(--btn-bg, #222);
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

/* ============ SECTION GROOVE LINES ============ */
#strings-section {
  border-top: 1px solid var(--body-border);
}

/* ============ SHORTCUT GROUP LABELS ============ */
.shortcut-group-label {
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-top: 10px;
  margin-bottom: 2px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--body-border);
}
.shortcut-group-label:first-of-type { margin-top: 0; }

.shortcut-row-note {
  padding: 1px 0;
  font-size: 0.6rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ============ OVERLAYS ============ */
#shortcuts-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}

.shortcuts-content {
  background: var(--body-bg-secondary);
  border: 1px solid var(--body-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  max-width: 360px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.shortcuts-content h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.shortcut-row {
  padding: 2px 0;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.shortcut-row kbd {
  display: inline-block;
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font);
  font-size: 0.65rem;
  margin-right: 3px;
  color: var(--text-primary);
}

#close-shortcuts {
  margin-top: 12px;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 4px 12px;
  font-family: var(--font);
  font-size: 0.65rem;
  cursor: pointer;
}
#close-shortcuts:hover { background: var(--btn-bg-hover); }

/* ============ AUDIO START OVERLAY ============ */
#audio-start-overlay {
  position: fixed;
  inset: 0;
  background: var(--page-bg, #0a0a10);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  cursor: pointer;
  transition: opacity 0.5s ease;
}

#audio-start-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.start-content {
  text-align: center;
}

.start-logo {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 14px;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.start-content p {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 3px;
  text-transform: uppercase;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* ============ UTILITIES ============ */
.hidden { display: none !important; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--body-border); border-radius: 3px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  #page { padding: 10px; }

  #omnichord-body {
    border-radius: 30% 30% 3% 3% / 10% 10% 2% 2%;
  }
  #omnichord-bezel {
    border-radius: 29% 29% 2.5% 2.5% / 9% 9% 1.5% 1.5%;
  }

  #brand-strip { padding: 12px 28px 6px; }
  .brand-name { font-size: 0.9rem; letter-spacing: 6px; }

  #controls-tray { padding: 0 28px 6px; }
  .midi-group { display: none; }

  #instrument { padding: 0 12px; }

  #chord-grid {
    grid-template-columns: 26px repeat(12, 1fr);
    gap: 2px;
  }
  .chord-btn { padding: 7px 0; font-size: 0.5rem; }
  .chord-row-label { font-size: 0.4rem; }

  #strings-strip { height: 85px; }
  #speaker-grill { padding: 8px 20px 12px; }
}

@media (max-width: 600px) {
  #page { padding: 6px; }

  #omnichord-body {
    border-radius: 20% 20% 3% 3% / 6% 6% 1.5% 1.5%;
    padding: 4px;
  }
  #omnichord-bezel {
    border-radius: 19% 19% 2.5% 2.5% / 5.5% 5.5% 1.2% 1.2%;
  }

  #brand-strip { padding: 10px 20px 4px; gap: 8px; }
  .brand-engraving { display: none; }
  .brand-name { font-size: 0.8rem; letter-spacing: 5px; }
  .brand-model { display: none; }

  #controls-tray { padding: 0 20px 4px; gap: 8px; }

  #instrument { padding: 0 8px; }

  #chord-grid {
    grid-template-columns: 20px repeat(12, 1fr);
    gap: 1px;
  }
  .chord-btn { padding: 6px 0; font-size: 0.4rem; border-radius: 3px; }

  #strings-strip { height: 70px; }

  #rhythm-controls { gap: 6px; }
  .rhythm-param input[type="range"] { width: 45px; }

  #speaker-grill { padding: 6px 12px 10px; }
  .grill-pattern { height: 28px; }
}

@media (max-width: 400px) {
  .brand-name { font-size: 0.7rem; letter-spacing: 4px; }
  .chord-btn { padding: 5px 0; font-size: 0.35rem; }
  #strings-strip { height: 55px; }
  .start-logo { font-size: 1.4rem; letter-spacing: 8px; }
}