/* ── Reset & base ─────────────────────────────────────────────────────────── */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:         #1a1a2e;
  --surface:    #16213e;
  --surface2:   #0f3460;
  --accent:     #e94560;
  --accent-dim: #a3213c;
  --text:       #eaeaea;
  --text-muted: #8899aa;
  --border:     rgba(255,255,255,0.10);
  --radius:     8px;
  --ctrl-h:     52px;
  font-size:    15px;
  font-family:  'Segoe UI', system-ui, sans-serif;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.hidden { display: none !important; }


/* ══════════════════════════════════════════════════════════════
   ÉCRAN D'ACCUEIL
══════════════════════════════════════════════════════════════ */

#splash {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  overflow-y: auto;
  padding: 24px 16px;
}

.splash-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
  max-width: 480px;
}

/* Logo */
.splash-logo {
  text-align: center;
  line-height: 1;
  margin-bottom: 4px;
}
.splash-logo-push {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
}
.splash-logo-hero {
  display: block;
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Champs */
.splash-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.splash-field > label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
}

/* Select modèle */
#splash-bell-model {
  appearance: none;
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.95rem;
  cursor: pointer;
  width: 100%;
}
#splash-bell-model:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* Boutons mode piano/partition */
.mode-toggle-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.mode-btn {
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 0;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  user-select: none;
}
.mode-btn:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text);
}
.mode-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* Liste MIDI */
.midi-list {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 260px;
  overflow-y: auto;
}
.midi-item {
  padding: 11px 16px;
  font-size: 0.92rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.12s;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.midi-item:last-child { border-bottom: none; }
.midi-item:hover { background: rgba(255,255,255,0.06); }
.midi-item.selected {
  background: rgba(233, 69, 96, 0.15);
  color: #fff;
}
.midi-item-icon { font-size: 1.1rem; flex-shrink: 0; }
.midi-item-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.midi-list-empty {
  padding: 20px 16px;
  color: var(--text-muted);
  font-size: 0.88rem;
  text-align: center;
}

.midi-list-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 6px;
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text);
}

#midi-file-input { display: none; }

/* Message d'erreur splash */
.splash-error {
  background: rgba(233, 69, 96, 0.15);
  border: 1px solid rgba(233, 69, 96, 0.4);
  border-radius: var(--radius);
  color: #f88;
  font-size: 0.85rem;
  padding: 10px 14px;
}

/* Bouton Démarrer */
.btn-start {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 14px 0;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  letter-spacing: 0.04em;
  transition: background 0.15s, opacity 0.15s;
}
.btn-start:hover:not(:disabled) {
  background: var(--accent-dim);
}
.btn-start:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.btn-start.loading {
  opacity: 0.6;
  cursor: wait;
}


/* ══════════════════════════════════════════════════════════════
   ÉCRAN DE JEU
══════════════════════════════════════════════════════════════ */

#game {
  display: grid;
  grid-template-rows: 1fr var(--ctrl-h);
  height: 100vh;
}

/* Zone canvas */
#canvas-wrap {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  min-height: 0;
}
#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Barre de contrôles */
#controls {
  background: var(--surface);
  border-top: 1px solid var(--border);
  height: var(--ctrl-h);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  overflow: hidden;
}

/* Titre / bouton retour */
.ctrl-title {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255,255,255,0.55);
  white-space: nowrap;
  padding: 0 4px;
  letter-spacing: 0.02em;
  transition: color 0.15s;
  flex-shrink: 0;
}
.ctrl-title span { color: var(--accent); }
.ctrl-title:hover { color: rgba(255,255,255,0.9); }

/* Séparateur */
.ctrl-sep {
  width: 1px;
  height: 26px;
  background: var(--border);
  flex-shrink: 0;
}

/* Boutons */
.btn {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 14px;
  height: 36px;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  user-select: none;
  flex-shrink: 0;
}
.btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.25);
}
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-size: 1.1rem;
  width: 42px;
  padding: 0;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
}

.btn-icon {
  padding: 0;
  width: 36px;
  font-size: 1rem;
}

/* Barre de progression */
#progress-bar {
  flex: 1;
  height: 10px;
  background: rgba(255,255,255,0.10);
  border-radius: 5px;
  cursor: pointer;
  position: relative;
  min-width: 60px;
}
#progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 5px;
  pointer-events: none;
  transition: width 0.08s linear;
}
/* Conteneur des traits de mesure */
#progress-measures {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.measure-tick {
  position: absolute;
  top: 0;
  width: 1px;
  height: 100%;
  background: rgba(255,255,255,0.22);
  transform: translateX(-50%);
  pointer-events: auto;
  cursor: pointer;
  transition: background 0.12s;
}
.measure-tick:hover {
  background: rgba(255,255,255,0.7);
}
/* Conteneur des marqueurs de checkpoint */
#progress-checkpoints {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
/* Un marqueur de checkpoint = petit losange/triangle au-dessus de la barre */
.cp-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: #fff;
  border-radius: 2px;
  rotate: 45deg;
  opacity: 0.75;
  pointer-events: auto;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
}
.cp-marker:hover { opacity: 1; }
.cp-marker.active {
  background: var(--accent);
  opacity: 1;
}
/* Tooltip sur survol */
.cp-marker[title]:hover::after {
  content: attr(title);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.85);
  color: #fff;
  font-size: 0.75rem;
  white-space: nowrap;
  padding: 4px 8px;
  border-radius: 4px;
  pointer-events: none;
  rotate: -45deg;
}

/* Tempo */
.tempo-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.tempo-icon {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1;
  flex-shrink: 0;
}
#tempo-slider {
  width: 80px;
  accent-color: var(--accent);
  cursor: pointer;
}
#tempo-slider:disabled { opacity: 0.35; cursor: not-allowed; }
#tempo-label {
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  min-width: 36px;
  text-align: right;
}

/* ── Métronome — splash ──────────────────────────────────────────────────── */

.splash-launch-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

/* Dans la rangée de lancement, btn-start prend le reste de la place */
.splash-launch-row .btn-start {
  flex: 1;
  width: auto;
  padding-left: 16px;
  padding-right: 16px;
}

.btn-metronome {
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 16px;
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  flex-shrink: 0;
}
.btn-metronome:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text);
}
.btn-metronome[aria-pressed="true"] {
  background: rgba(233, 69, 96, 0.18);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* ── Métronome — barre de jeu ────────────────────────────────────────────── */

.btn-metronome-game[aria-pressed="true"] {
  background: rgba(233, 69, 96, 0.2);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.28); }