/* =========================================================
   Pépite — Explosion (démo)
   Overlay typo pure Bodoni — pas de panel card, pas de fond
   solide, texte sur contexte. Bodoni pour titres, DM Sans
   pour corps, italic pour actions.
   ========================================================= */

* { box-sizing: border-box; }

:root {
  --bg: #08060d;
  --bg-grad-1: #110820;
  --bg-grad-2: #06030a;
  --violet: #c084fc;
  --magenta: #ec4899;
  --pink-soft: #f0abfc;
  --text: rgba(255, 255, 255, 0.94);
  --text-dim: rgba(255, 255, 255, 0.55);
  --text-faint: rgba(255, 255, 255, 0.35);
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(ellipse at center, var(--bg-grad-1) 0%, var(--bg-grad-2) 70%, #000 100%);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#explosion-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
}

/* ===== LOADER ===== */
.loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  pointer-events: none;
  background: transparent;
  transition: opacity .6s ease;
}
.loader.is-done { opacity: 0; }
.loader-text {
  font-family: 'Bodoni Moda', serif;
  font-size: 18px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  animation: loaderPulse 1.8s ease-in-out infinite;
}
.loader-text em { font-style: italic; }
@keyframes loaderPulse {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 0.85; }
}

/* ===== TOP BAR ===== */
.top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 22px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
  pointer-events: none;
}

.back-link {
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 16px;
  color: var(--text-dim);
  text-decoration: none;
  pointer-events: auto;
  transition: color .25s ease;
  letter-spacing: 0.01em;
}
.back-link:hover { color: var(--text); }

.title {
  font-family: 'Bodoni Moda', serif;
  font-weight: 400;
  font-size: 17px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}
.title em {
  font-style: italic;
  color: var(--text-faint);
  margin-left: 4px;
}

/* Cluster haut-droite : titre · son · langue · fps, côte à côte. Évite l'ancien
   chevauchement (.title et .audio-toggle étaient tous deux fixés top:22/right:32). */
.top-right {
  display: flex;
  align-items: center;
  gap: 18px;
  pointer-events: none; /* le titre/fps laissent passer le drag-rotation du cristal */
}
.top-right > #audio-toggle,
.top-right > .lang-select { pointer-events: auto; }

/* Sélecteur de langue : typo pure, affiche la langue active, déroulant EN/FR */
.lang-select {
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  color: var(--text-faint);
  background: transparent;
  border: none;
  cursor: pointer;
  letter-spacing: 0.02em;
  padding: 4px 2px;
  appearance: none;
  -webkit-appearance: none;
  transition: color .25s ease;
}
.lang-select:hover { color: var(--text); }
.lang-select option { color: #111; background: #fff; } /* lisible dans le menu natif */

/* ===== ACTIONS (bas centré) ===== */
.actions {
  position: fixed;
  bottom: 42px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 36px;
  z-index: 10;
}

.action-btn {
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  color: var(--text);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px 4px;
  letter-spacing: 0.01em;
  position: relative;
  transition: color .3s ease, transform .3s ease;
}
.action-btn::after {
  content: '';
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 2px;
  height: 1px;
  background: var(--text-faint);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .3s ease, background .3s ease;
}
.action-btn:hover {
  color: var(--pink-soft);
}
.action-btn:hover::after {
  transform: scaleX(1);
  background: var(--pink-soft);
}
.action-btn.is-active {
  color: var(--magenta);
}
.action-btn.is-active::after {
  transform: scaleX(1);
  background: var(--magenta);
}

/* ===== AUDIO TOGGLE ===== */
.audio-toggle {
  /* Élément inline du cluster .top-right (haut-droite) — voir .top-right */
  background: transparent;
  border: none;
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  color: var(--text-faint);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: color .25s ease;
  padding: 4px 8px;
}
.audio-toggle:hover { color: var(--text); }
.audio-toggle.is-on { color: var(--violet); }

/* ===== DEV PANEL ===== */
.dev-toggle {
  position: fixed;
  bottom: 22px;
  right: 22px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.4);
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color .2s ease, border-color .2s ease;
}
.dev-toggle:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.3);
}

.dev-panel {
  position: fixed;
  right: 22px;
  bottom: 70px;
  width: 360px;
  max-height: 82vh;
  background: rgba(8, 6, 13, 0.97);
  border: 1px solid rgba(192, 132, 252, 0.22);
  border-radius: 8px;
  padding: 0;
  z-index: 11;
  font-family: 'DM Sans', sans-serif;
  font-size: 12.5px;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Sticky header (titre + preset bar + dropdown) */
.dev-header {
  flex-shrink: 0;
  padding: 14px 18px 10px;
  border-bottom: 1px solid rgba(192, 132, 252, 0.14);
  background: rgba(8, 6, 13, 0.99);
}

.dev-title {
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 15px;
  color: var(--text);
  margin: 0 0 10px 0;
  letter-spacing: 0.02em;
}

.preset-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.preset-action {
  flex: 1;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(192, 132, 252, 0.06);
  border: 1px solid rgba(192, 132, 252, 0.22);
  border-radius: 4px;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.preset-action:hover {
  background: rgba(192, 132, 252, 0.16);
  border-color: rgba(192, 132, 252, 0.5);
}
.preset-action:active { transform: scale(0.96); }

.preset-select {
  width: 100%;
  height: 28px;
  background: rgba(192, 132, 252, 0.06);
  border: 1px solid rgba(192, 132, 252, 0.22);
  border-radius: 4px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 11.5px;
  padding: 0 8px;
  cursor: pointer;
}
.preset-select option {
  background: rgba(8, 6, 13, 0.98);
  color: var(--text);
}

/* Scrollable content area */
.dev-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 8px 18px 18px;
  scrollbar-width: thin;
  scrollbar-color: rgba(192, 132, 252, 0.3) transparent;
}
.dev-scroll::-webkit-scrollbar { width: 6px; }
.dev-scroll::-webkit-scrollbar-thumb {
  background: rgba(192, 132, 252, 0.3);
  border-radius: 3px;
}

/* Accordion sections */
.dev-section {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 6px 0;
}
.dev-section:first-child { border-top: none; }
.dev-section > summary {
  cursor: pointer;
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 13.5px;
  color: var(--text);
  list-style: none;
  padding: 6px 0;
  display: flex;
  align-items: center;
  letter-spacing: 0.01em;
  user-select: none;
  position: relative;
}
.dev-section > summary::-webkit-details-marker { display: none; }
.dev-section > summary::after {
  content: '+';
  position: absolute;
  right: 4px;
  color: var(--text-dim);
  font-size: 14px;
  font-style: normal;
  transition: transform .2s ease;
}
.dev-section[open] > summary::after {
  content: '−';
}
.dev-section > summary:hover {
  color: var(--pink-soft);
}
.dev-section-body {
  padding: 8px 0 4px 0;
}

/* Preset grid (6 boutons thématiques) */
.preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.preset-btn {
  background: transparent;
  border: 1px solid rgba(192, 132, 252, 0.25);
  border-radius: 4px;
  color: var(--text);
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-size: 12px;
  padding: 8px 6px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.preset-btn:hover {
  background: rgba(192, 132, 252, 0.12);
  border-color: rgba(192, 132, 252, 0.55);
  color: var(--pink-soft);
}
.preset-btn:active { transform: scale(0.98); }

/* Toast notification (éphémère) */
.toast {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(8, 6, 13, 0.96);
  border: 1px solid rgba(192, 132, 252, 0.35);
  border-radius: 4px;
  padding: 9px 16px;
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-size: 13px;
  color: var(--text);
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  transition: opacity .25s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}
.toast.is-visible { opacity: 1; }

/* Hue swatch (utilisé par les sliders de teinte) */
.hue-swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  vertical-align: middle;
  margin-left: 6px;
}

/* Toggle row (pour les booleans) */
.dev-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.dev-toggle-row label {
  flex: 1;
  font-size: 11.5px;
  color: var(--text-dim);
  cursor: pointer;
}
.dev-toggle-input {
  appearance: none;
  width: 32px;
  height: 18px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 9px;
  position: relative;
  cursor: pointer;
  transition: background .2s ease;
}
.dev-toggle-input::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  transition: transform .2s ease, background .2s ease;
}
.dev-toggle-input:checked {
  background: rgba(192, 132, 252, 0.5);
}
.dev-toggle-input:checked::before {
  transform: translateX(14px);
  background: var(--violet);
}

.dev-row {
  margin-bottom: 12px;
  position: relative;
}

/* Tooltip détaillé au survol — affiché À GAUCHE du panel via position:fixed
   (sort de tous les overflow:auto parents). La position verticale --tip-top
   est mise à jour par JS au mouseenter (pas calculable en CSS pur). */
.dev-row[data-tip],
.dev-action[data-tip] {
  cursor: help;
}
.dev-row[data-tip]:hover::after,
.dev-action[data-tip]:hover::after {
  content: attr(data-tip);
  position: fixed;
  right: calc(22px + 360px + 16px);   /* panel right + panel width + gap */
  top: var(--tip-top, 50vh);
  transform: translateY(-50%);
  width: 280px;
  padding: 11px 14px;
  background: rgba(8, 6, 13, 0.97);
  border: 1px solid rgba(192, 132, 252, 0.32);
  border-radius: 6px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 11.5px;
  font-style: normal;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0;
  white-space: normal;
  text-align: left;
  z-index: 100;
  pointer-events: none;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55);
}
/* Petite flèche pointant vers la ligne survolée */
.dev-row[data-tip]:hover::before,
.dev-action[data-tip]:hover::before {
  content: '';
  position: fixed;
  right: calc(22px + 360px + 4px);
  top: var(--tip-top, 50vh);
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: rgba(192, 132, 252, 0.32);
  z-index: 101;
  pointer-events: none;
}

/* Mobile (≤ 640px) : panel plus étroit, tooltip désactivé (pas de hover). */
@media (hover: none), (max-width: 640px) {
  .dev-row[data-tip]:hover::after,
  .dev-row[data-tip]:hover::before,
  .dev-action[data-tip]:hover::after,
  .dev-action[data-tip]:hover::before {
    display: none;
  }
}
.dev-row label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
  font-size: 11px;
  color: var(--text-dim);
}
.dev-row label output {
  font-family: 'JetBrains Mono', 'SF Mono', monospace;
  color: var(--violet);
  font-size: 11px;
}
.dev-row input[type="range"] {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  outline: none;
}
.dev-row input[type="range"]:focus-visible {
  outline: 2px solid var(--violet, #c084fc);
  outline-offset: 3px;
}
.dev-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--violet);
  cursor: pointer;
  border: 2px solid rgba(8, 6, 13, 0.8);
  box-shadow: 0 0 6px rgba(192, 132, 252, 0.5);
}
.dev-row input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--violet);
  cursor: pointer;
  border: 2px solid rgba(8, 6, 13, 0.8);
}

.dev-action {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid rgba(192, 132, 252, 0.25);
  border-radius: 4px;
  color: var(--violet);
  font-family: 'Bodoni Moda', serif;
  font-style: italic;
  font-size: 12px;
  cursor: pointer;
  transition: background .2s ease;
}
.dev-action:hover {
  background: rgba(192, 132, 252, 0.08);
}

/* ===== MOBILE ===== */
@media (max-width: 640px) {
  .top { padding: 16px 18px; }
  .title { font-size: 14px; }
  .actions { bottom: 28px; gap: 24px; }
  .action-btn { font-size: 19px; }
  .dev-panel { width: calc(100% - 44px); right: 22px; }
}