:root {
  --bg: #030304;
  --fg: #f4f4f6;
  --fg-dim: rgba(244, 244, 246, 0.6);
  --accent: #7dd3fc;
  --glass: rgba(12, 12, 16, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  overscroll-behavior: none;
}

#stage {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  touch-action: none;
}

body.hide-cursor,
body.hide-cursor * {
  cursor: none;
}

/* ── Écran de démarrage ─────────────────────────────── */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 40%, #0c0d12 0%, #030304 75%);
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.start-card {
  text-align: center;
  max-width: min(90vw, 420px);
  padding: clamp(1.5rem, 5vw, 2.5rem);
}

.start-card h1 {
  margin: 0 0 0.4em;
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0 0 1.8em;
  color: var(--fg-dim);
  font-size: clamp(0.9rem, 2.5vw, 1.05rem);
}

.start-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75em;
}

.btn {
  font: inherit;
  font-size: clamp(0.95rem, 3vw, 1.05rem);
  padding: 0.85em 1.4em;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  color: #05141a;
  border: none;
  font-weight: 600;
}
.btn-primary:hover { background: #a5e2fc; }

.btn-secondary {
  background: var(--glass);
  color: var(--fg);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.12); }

.hint {
  margin-top: 1.4em;
  font-size: 0.8rem;
  color: var(--fg-dim);
}

.error {
  margin-top: 1em;
  font-size: 0.85rem;
  color: #ff8a8a;
  min-height: 1.2em;
}

/* ── Panneau lecture automatique ────────────────────── */

.panel-overlay {
  z-index: 30;
}

.panel-card {
  text-align: left;
  width: min(90vw, 420px);
  max-height: 80vh;
  overflow-y: auto;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  border-radius: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
  margin-bottom: 1em;
}
.panel-header h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.switch-row,
.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
  padding: 0.6em 0;
  border-bottom: 1px solid var(--glass-border);
  font-size: 0.9rem;
}

.switch-row input[type="checkbox"] {
  width: 1.2em;
  height: 1.2em;
  accent-color: var(--accent);
  cursor: pointer;
}

.field-row input[type="number"] {
  width: 5em;
  font: inherit;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--fg);
  padding: 0.3em 0.5em;
}

.playlist-list-header {
  margin: 1em 0 0.5em;
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.playlist-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2em;
}

.playlist-list li label {
  display: flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.45em 0.2em;
  font-size: 0.9rem;
  cursor: pointer;
}

.playlist-list li input[type="checkbox"] {
  width: 1.1em;
  height: 1.1em;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.icon-btn.active {
  background: var(--accent);
  color: #05141a;
}

/* ── HUD ─────────────────────────────────────────────── */

.hud {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.35s ease;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.hud.hud-off {
  opacity: 0;
}
.hud * {
  pointer-events: auto;
}
.hud.hud-off * {
  pointer-events: none;
}

.hud-top {
  position: absolute;
  top: clamp(0.75rem, 2vw, 1.25rem);
  left: clamp(0.75rem, 2vw, 1.25rem);
  right: clamp(0.75rem, 2vw, 1.25rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
}

.anim-info {
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  padding: 0.5em 1em;
  font-size: clamp(0.75rem, 2vw, 0.9rem);
  max-width: 60vw;
  overflow: hidden;
}
.anim-index {
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.anim-name {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hud-actions {
  display: flex;
  gap: 0.5em;
}

.icon-btn {
  width: clamp(2.2rem, 6vw, 2.6rem);
  height: clamp(2.2rem, 6vw, 2.6rem);
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(10px);
  color: var(--fg);
  font-size: clamp(1rem, 3vw, 1.15rem);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.14); }
.icon-btn:active { transform: scale(0.92); }

.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(2.4rem, 7vw, 3.2rem);
  height: clamp(2.4rem, 7vw, 3.2rem);
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  backdrop-filter: blur(10px);
  color: var(--fg);
  font-size: clamp(1.3rem, 4vw, 1.7rem);
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.15s ease;
}
.nav-btn:hover { background: rgba(255, 255, 255, 0.14); }
.nav-btn:active { transform: translateY(-50%) scale(0.92); }
.nav-prev { left: clamp(0.5rem, 2vw, 1.25rem); }
.nav-next { right: clamp(0.5rem, 2vw, 1.25rem); }

.hud-bottom {
  position: absolute;
  bottom: clamp(0.75rem, 3vw, 1.5rem);
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  text-align: center;
  padding: 0 1em;
}

.kbd-hint {
  font-size: clamp(0.7rem, 2vw, 0.8rem);
  color: var(--fg-dim);
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
  border-radius: 999px;
  padding: 0.45em 1em;
}

.desktop-only { display: inline; }
.mobile-only { display: none; }

@media (hover: none) and (pointer: coarse) {
  .desktop-only { display: none; }
  .mobile-only { display: inline; }
}

/* ── Toast ───────────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: clamp(3.5rem, 10vw, 5rem);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  z-index: 15;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  padding: 0.5em 1.2em;
  font-size: clamp(0.8rem, 2.5vw, 0.95rem);
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 480px) {
  .anim-info { max-width: 48vw; }
}