/* ============================================================
   style.css — QNPHRASE
   QNTEMPO/QNAUDIOのデザイントークン・コンポーネントをそのまま踏襲。
   スマホ専用単一レイアウト。
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --accent-primary: #3b82f6;
  --accent-secondary: #1d4ed8;
  --accent-glow: rgba(59, 130, 246, 0.35);
  --accent-hover-1: #2563eb;
  --accent-hover-2: #1e40af;
  --font-display: 'Instrument Sans';
  --font-body: 'Instrument Sans';

  --ease-snap: cubic-bezier(0.2, 0, 0, 1);
  --ease-glide: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-pop: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-dismiss: cubic-bezier(0.4, 0, 1, 1);

  --dur-hover: 130ms;
  --dur-press: 100ms;
  --dur-open: 240ms;
  --dur-dismiss: 200ms;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html {
  touch-action: pan-x pan-y;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  height: 100dvh;
  overflow: hidden;
  background: #0d0d0f;
  color: #f0f0f3;
  font-family: var(--font-body, 'Instrument Sans'), -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
  padding: 24px 24px 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  user-select: none;
}

/* ---------- Header ---------- */
#appHeader {
  width: 100%;
  max-width: 1400px;
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  z-index: 200;
  flex-shrink: 0;
}

#appLogo {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 1px;
  margin: 0;
  color: #f0f0f3;
  text-transform: uppercase;
}

#appLogoQN { color: var(--accent-primary); }

#appVersion {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: #6b6b7b;
  text-transform: none;
  vertical-align: middle;
}

/* ---------- Control bar: Key / Scale / Position chips ---------- */
.control-bar {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-shrink: 0;
}

#barsChip { flex: 0.75; }
#scaleChip .chip-value { font-size: 20px; }

.control-chip {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 12px 12px 14px;
  border-radius: 14px;
  background: #16161b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), transform var(--dur-press) var(--ease-snap);
}
.control-chip:active { transform: scale(0.97); }

.chip-label {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #6b6b7b;
}

.chip-value {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 30px;
  font-weight: 800;
  color: #f0f0f3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  line-height: 1.1;
}

/* ---------- Chord progression grid ---------- */
.prog-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  margin-top: 18px;
}

.prog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
  flex-shrink: 0;
}

.prog-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.single-toggle-btn {
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent-primary);
  color: #fff;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
  border: none;
  min-width: 76px;
  transition: background var(--dur-hover) var(--ease-snap), transform var(--dur-press) var(--ease-snap);
}
.single-toggle-btn:active { transform: scale(0.95); }

.stage-meta-label {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #55555f;
}

.meta-inline-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 5px 10px;
  border-radius: 8px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #c8c8d0;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
}
.meta-inline-btn:active { transform: scale(0.95); }

/* 小節ごとに「コード入力(4拍)」+「その小節のTAB」をまとめたブロックを縦に並べる。
   全体を1つの縦スクロールコンテナに収め、画面幅いっぱいに均等表示する。 */
.bar-blocks {
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  padding-bottom: 4px;
}

.bar-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.bar-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bar-block-num {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: #55555f;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.bar-block-chord-label {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-primary);
}

.prog-bar-row {
  display: flex;
  gap: 3px;
  align-items: stretch;
}

.prog-cell {
  flex: 1;
  min-width: 0;
  aspect-ratio: 1 / 0.42;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #6b6b7b;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 22px;
  font-weight: 800;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), color var(--dur-hover) var(--ease-snap);
  white-space: nowrap;
  overflow: hidden;
}
.prog-cell.filled {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.prog-cell:active { transform: scale(0.94); }
.prog-cell.playing {
  border-color: #f0f0f3;
  box-shadow: 0 0 0 2px rgba(240, 240, 243, 0.3);
}

/* ---------- 小節ごとのTAB表示エリア ---------- */
.bar-block-tab {
  background: #16161b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 0;
  position: relative;
}
.bar-block-tab-empty {
  color: #55555f;
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-size: 12px;
  text-align: center;
  padding: 16px;
}

.tab-bar-svg {
  width: 100%;
  height: auto;
  display: block;
  padding: 8px 12px;
}

/* ---------- Generate button ---------- */
.generate-row {
  flex-shrink: 0;
  margin: 14px 0;
  display: flex;
  gap: 8px;
}

.generate-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border: none;
  color: #fff;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 6px 20px var(--accent-glow);
  transition: transform var(--dur-press) var(--ease-snap);
}
.generate-btn:active { transform: scale(0.97); }
.generate-btn svg { width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; }

.save-btn {
  flex-shrink: 0;
  width: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: #16161b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #f0f0f3;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), transform var(--dur-press) var(--ease-snap);
}
.save-btn:active { transform: scale(0.94); }
.save-btn:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.save-btn svg { width: 22px; height: 22px; fill: currentColor; }
.save-btn-danger { color: #ef4444; border-color: rgba(239, 68, 68, 0.25); }
.save-btn-danger:hover { border-color: #ef4444; color: #ef4444; }

/* ---------- Save name input popup ---------- */
.save-name-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #f0f0f3;
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-size: 15px;
  margin-bottom: 4px;
}
.save-name-input::placeholder { color: #55555f; }
.save-name-input:focus { outline: none; border-color: var(--accent-primary); }

.save-mode-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.save-mode-btn {
  flex: 1;
  padding: 10px 4px;
  text-align: center;
  border-radius: 10px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #8b8b9e;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.save-mode-btn.selected {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.save-mode-btn:active { transform: scale(0.96); }

/* ---------- Stock (saved phrases) list ---------- */
.stock-filter-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.stock-filter-btn {
  flex: 1;
  padding: 10px 4px;
  text-align: center;
  border-radius: 10px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #8b8b9e;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.stock-filter-btn.selected {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.stock-filter-btn:active { transform: scale(0.96); }

.stock-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 50vh;
  overflow-y: auto;
}
.stock-empty {
  text-align: center;
  padding: 24px 0;
  color: #55555f;
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-size: 13px;
}
.stock-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 12px 12px 14px;
  border-radius: 12px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
}
.stock-row-main {
  flex: 1;
  min-width: 0;
}
.stock-row-name {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #f0f0f3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.stock-row-meta {
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-size: 11px;
  color: #6b6b7b;
  margin-top: 2px;
}
.stock-row-fav {
  flex-shrink: 0;
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: #55555f;
  cursor: pointer;
  font-size: 18px;
}
.stock-row-fav.active { color: #f5b400; }
.stock-row-fav:active { transform: scale(0.9); }
.stock-row-delete {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: #55555f;
  cursor: pointer;
  font-size: 16px;
}
.stock-row-delete:active { background: rgba(239, 68, 68, 0.15); color: #ef4444; }

/* ---------- Popups (shared with QNTEMPO patterns) ---------- */
.av-popup {
  display: none;
  position: fixed;
  left: 20px;
  right: 20px;
  bottom: 0;
  z-index: 350;
  background: #16161b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: none;
  border-radius: 20px 20px 0 0;
  padding: 18px 18px calc(18px + env(safe-area-inset-bottom));
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 -12px 32px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateY(100%);
  transition: opacity var(--dur-open) var(--ease-dismiss), transform var(--dur-open) var(--ease-dismiss);
}
.av-popup.open {
  display: block;
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-open) var(--ease-pop), transform var(--dur-open) var(--ease-pop);
}

.av-popup-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 340;
  background: rgba(5, 5, 7, 0);
  transition: background var(--dur-open) var(--ease-dismiss);
}
.av-popup-backdrop.open {
  display: block;
  background: rgba(5, 5, 7, 0.6);
  transition: background var(--dur-open) var(--ease-pop);
}

.popup-title {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #6b6b7b;
  margin: 0 0 14px;
}

.popup-subtitle {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: #6b6b7b;
  margin: 14px 0 8px;
}

.confirm-message {
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-size: 14px;
  color: #c8c8d0;
  line-height: 1.5;
  margin: 0;
}

/* ---------- Volume sliders (Settings popup) ---------- */
.volume-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.volume-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: #1c1c24;
  outline: none;
  cursor: pointer;
}
.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 2px 8px var(--accent-glow);
  cursor: pointer;
  border: none;
}
.volume-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 2px 8px var(--accent-glow);
  cursor: pointer;
  border: none;
}
.volume-slider::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: #1c1c24;
}

.volume-value {
  flex-shrink: 0;
  width: 42px;
  text-align: right;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-primary);
  font-variant-numeric: tabular-nums;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 6px;
}
.choice-grid-12 { grid-template-columns: repeat(6, 1fr); }
#keyGrid.choice-grid-12 .choice-cell { padding: 18px 4px; }
.choice-grid-4 { grid-template-columns: repeat(4, 1fr); }
.choice-grid-degree { grid-template-columns: repeat(4, 1fr); }
.choice-grid-onbass { grid-template-columns: repeat(4, 1fr); }
.choice-grid-scale {
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.scale-choice-cell {
  font-size: 12px;
  padding: 12px 4px;
  line-height: 1.25;
}

.choice-cell {
  padding: 13px 4px;
  text-align: center;
  border-radius: 12px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #c8c8d0;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), color var(--dur-hover) var(--ease-snap);
}
.choice-cell.selected {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.choice-cell:active { transform: scale(0.94); }

/* スケール一覧は縦リスト（種類が多いため） */
.chord-popup-actions { margin-top: 14px; }

/* ---------- Manual note input popup (TAB cell tap) ---------- */
/* 0〜21フレットをボタングリッドで選択 */
.fret-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
  margin-bottom: 10px;
}
@media (min-width: 640px) {
  .fret-grid {
    grid-template-columns: repeat(10, 1fr);
  }
}
.fret-cell {
  aspect-ratio: 1 / 0.62;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #c8c8d0;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), color var(--dur-hover) var(--ease-snap);
}
.fret-cell.selected {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.fret-cell:active { transform: scale(0.94); }

.note-length-toggle-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
  margin-bottom: 10px;
}
.note-length-btn {
  aspect-ratio: 1 / 0.9;
  padding: 6px 2px;
  text-align: center;
  border-radius: 8px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #c8c8d0;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), color var(--dur-hover) var(--ease-snap);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.note-length-symbol {
  width: 18px;
  height: 18px;
  color: #c8c8d0;
  transition: color var(--dur-hover) var(--ease-snap);
}
.note-length-btn.selected .note-length-symbol { color: var(--accent-primary); }
.note-length-name {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.note-length-btn.selected {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
.note-length-btn:active { transform: scale(0.94); }

.note-length-total-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-bottom: 2px;
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-size: 12px;
  color: #6b6b7b;
}
#noteLengthTotal {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 16px;
  font-weight: 800;
  color: var(--accent-primary);
}

/* ---------- TAB manual input hit areas ---------- */
.tab-hit-cell {
  cursor: pointer;
  fill: transparent;
  transition: fill 80ms ease;
}
.tab-hit-cell:hover {
  fill: rgba(255, 255, 255, 0.08);
}
.tab-note-rect { cursor: pointer; }


.chord-clear-btn {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #ef4444;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  cursor: pointer;
}
.chord-clear-btn:active { transform: scale(0.97); }

.popup-close-btn {
  width: 100%;
  margin-top: 14px;
  padding: 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border: none;
  color: #fff;
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 6px 20px var(--accent-glow);
  transition: transform var(--dur-press) var(--ease-snap);
}
.popup-close-btn:active { transform: scale(0.97); }

/* ---------- Note input popup: Clear + Set side by side ---------- */
.note-input-actions-row {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.note-input-actions-row .chord-clear-btn {
  width: auto;
  flex: 1;
}
.note-input-actions-row .popup-close-btn {
  width: auto;
  flex: 1;
  margin-top: 0;
}

/* ---------- Bottom fixed transport (mirrors QNTEMPO) ---------- */
.top-controls-spacer { flex-shrink: 0; }

.top-controls {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
  background: rgba(13, 13, 15, 0.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.4);
}

.bpm-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.bpm-step-btn {
  flex-shrink: 0;
  width: 40px;
  border-radius: 12px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #f0f0f3;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), transform var(--dur-press) var(--ease-snap);
}
.bpm-step-btn svg { width: 18px; height: 18px; fill: currentColor; }
.bpm-step-btn:active { transform: scale(0.94); background: var(--accent-glow); border-color: var(--accent-primary); color: var(--accent-primary); }

.bpm-display-wrap {
  flex: 1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  padding: 8px 4px;
  border-radius: 12px;
  background: #16161b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: grab;
  touch-action: none;
  user-select: none;
}
.bpm-display-wrap:active { cursor: grabbing; }
#bpmVal {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: #f0f0f3;
  font-variant-numeric: tabular-nums;
}
.bpm-unit {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #8b8b9e;
}
#tempoName {
  font-family: var(--font-body, 'Instrument Sans'), sans-serif;
  font-style: italic;
  font-size: 12px;
  color: #6b6b7b;
}

.bpm-click-btn {
  flex-shrink: 0;
  width: 56px;
  border-radius: 12px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), color var(--dur-hover) var(--ease-snap), transform var(--dur-press) var(--ease-snap);
}
.bpm-click-btn svg { width: 18px; height: 18px; fill: currentColor; }
.bpm-click-btn:active { transform: scale(0.94); }
.bpm-click-btn.active { color: var(--accent-primary); border-color: var(--accent-primary); background: var(--accent-glow); }

.top-controls-row { display: flex; gap: 8px; align-items: center; }

.top-controls-btn-label {
  font-family: var(--font-display, 'Instrument Sans'), sans-serif;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.7;
  line-height: 1;
}

.transport-btn {
  flex: 1;
  padding: 12px 0 10px;
  background: #1c1c24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  cursor: pointer;
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  transition: background var(--dur-hover) var(--ease-snap), border-color var(--dur-hover) var(--ease-snap), transform var(--dur-press) var(--ease-snap), box-shadow var(--dur-press) var(--ease-snap);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.transport-btn svg { width: 20px; height: 20px; fill: currentColor; }
.transport-btn:active { transform: scale(0.94); background: #2a2a35; }

.transport-btn-play {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border: none;
  box-shadow: 0 6px 20px var(--accent-glow);
  color: #fff;
}
.transport-btn-play.playing {
  background: linear-gradient(135deg, #ef4444, #b91c1c);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35);
}