/* =====================================================================
   ONCO ARCADE — Charte graphique partagée (v1.0)
   Auteur : Pr Jean-Emmanuel Bibault
   Un seul fichier importé par TOUS les jeux → habillage identique.
   Thème clair/sombre via  html[data-theme="dark"]
   Bilingue via             html[lang="fr"] / html[lang="en"]  + classes .fr / .en
   ===================================================================== */

:root {
  --bg: #f7f8fb;
  --bg-2: #ffffff;
  --text: #111827;
  --muted: #667085;
  --soft: #98a2b3;
  --card: rgba(255, 255, 255, .82);
  --card-strong: rgba(255, 255, 255, .97);
  --stroke: rgba(17, 24, 39, .11);
  --stroke-strong: rgba(17, 24, 39, .18);
  --shadow: 0 16px 42px rgba(15, 23, 42, .08);
  --shadow-soft: 0 8px 24px rgba(15, 23, 42, .06);
  --primary: #2557d6;
  --cyan: #0891b2;
  --magenta: #c02678;
  --violet: #6d28d9;
  --green: #047857;
  --amber: #b45309;
  --red: #c2414b;
  --chip: rgba(37, 87, 214, .08);
  --mist: rgba(37, 87, 214, .055);
  --radius: 12px;
  --radius-sm: 8px;
  --glass-blur: blur(18px);
  --focus: 0 0 0 4px rgba(37, 87, 214, .16);
}

html[data-theme="dark"] {
  --bg: #070a12;
  --bg-2: #0d1323;
  --text: #f8fafc;
  --muted: #a7b0c2;
  --soft: #7d8798;
  --card: rgba(15, 23, 42, .74);
  --card-strong: rgba(15, 23, 42, .96);
  --stroke: rgba(255, 255, 255, .12);
  --stroke-strong: rgba(255, 255, 255, .2);
  --shadow: 0 24px 72px rgba(0, 0, 0, .38);
  --shadow-soft: 0 14px 36px rgba(0, 0, 0, .24);
  --primary: #7aa2ff;
  --cyan: #22d3ee;
  --magenta: #f472b6;
  --violet: #a78bfa;
  --green: #34d399;
  --amber: #f6bd60;
  --red: #fb7185;
  --chip: rgba(122, 162, 255, .14);
  --mist: rgba(122, 162, 255, .08);
  --focus: 0 0 0 4px rgba(122, 162, 255, .18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.45;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 14% 6%, rgba(37, 87, 214, .10), transparent 34%),
    radial-gradient(circle at 88% 8%, rgba(192, 38, 120, .06), transparent 32%),
    radial-gradient(circle at 44% 92%, rgba(8, 145, 178, .055), transparent 36%);
  z-index: -2;
}
body::after {
  content: "";
  position: fixed;
  width: 560px; height: 560px;
  right: -210px; top: 210px;
  border-radius: 999px;
  background: conic-gradient(from 160deg, rgba(37,87,214,.18), rgba(192,38,120,.14), rgba(8,145,178,.16), rgba(37,87,214,.18));
  filter: blur(54px);
  opacity: .72;
  z-index: -3;
  pointer-events: none;
}

a, a:visited, a:hover, a:focus, a:active { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }
::selection { background: rgba(37, 87, 214, .18); }

/* ---------- Layout ---------- */
.shell { width: min(1160px, calc(100% - 36px)); margin: 0 auto; }

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 18px;
  font-size: clamp(44px, 6vw, 76px);
  line-height: .95;
  letter-spacing: -.064em;
  font-weight: 520;
}
.gradient-text {
  background: linear-gradient(120deg, var(--text), color-mix(in srgb, var(--primary) 66%, var(--cyan)), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  max-width: 690px;
  margin-bottom: 26px;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.5;
  font-weight: 400;
}

/* ---------- Topbar / brand ---------- */
.topbar {
  position: sticky;
  top: 14px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 14px;
  padding: 9px 10px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--card-strong) 82%, transparent);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-soft);
}
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.mark {
  width: 36px; height: 36px;
  position: relative;
  flex: 0 0 auto;
  border-radius: 9px;
  border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--stroke));
  background:
    radial-gradient(circle at 48% 50%, var(--magenta) 0 3px, transparent 4px),
    conic-gradient(from 110deg, transparent 0 22deg, var(--primary) 22deg 126deg, transparent 126deg 194deg, var(--cyan) 194deg 320deg, transparent 320deg 360deg),
    linear-gradient(135deg, rgba(37,87,214,.12), rgba(8,145,178,.08));
  box-shadow: inset 0 0 0 7px color-mix(in srgb, var(--bg-2) 72%, transparent);
}
.mark::before, .mark::after {
  content: "";
  position: absolute;
  left: 8px; right: 8px; top: 17px;
  height: 1px;
  background: color-mix(in srgb, var(--text) 32%, transparent);
}
.mark::after { transform: rotate(90deg); }
.brand-text { display: grid; gap: 0; line-height: 1.08; }
.brand-title { font-weight: 560; letter-spacing: -.02em; white-space: nowrap; }
.brand-subtitle { color: var(--muted); font-size: 12px; white-space: nowrap; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a, .nav button { flex: 0 0 auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  color: var(--text);
  background: color-mix(in srgb, var(--card-strong) 82%, transparent);
  box-shadow: none;
  cursor: pointer;
  font-weight: 450;
  transition: transform .16s ease, border-color .16s ease, background .16s ease, box-shadow .16s ease, color .16s ease;
}
.btn:hover { transform: translateY(-1px); border-color: var(--stroke-strong); box-shadow: var(--shadow-soft); }
.btn:active { transform: translateY(0); box-shadow: none; }
.btn:focus-visible { outline: 0; box-shadow: var(--focus); }
.btn.primary {
  color: #fff;
  border-color: color-mix(in srgb, var(--primary) 62%, black);
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 68%, var(--cyan)));
  box-shadow: 0 12px 26px rgba(37, 87, 214, .18);
}
.btn.ghost { background: transparent; }
.btn.small { min-height: 32px; padding: 7px 10px; font-size: 13px; }
.btn.block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none; }

/* ---------- Theme toggle ---------- */
.toggle {
  position: relative;
  width: 68px; min-height: 34px;
  border-radius: 999px;
  padding: 3px;
  border: 1px solid var(--stroke);
  background: color-mix(in srgb, var(--card-strong) 82%, transparent);
  cursor: pointer;
}
.toggle span {
  position: absolute;
  inset: 3px auto 3px 3px;
  width: 28px;
  border-radius: 999px;
  background: var(--text);
  transition: transform .18s ease, background .18s ease;
}
.toggle::before, .toggle::after {
  position: absolute; top: 50%;
  transform: translateY(-50%);
  font-size: 12px; color: var(--muted);
}
.toggle::before { content: "\2600"; left: 10px; }
.toggle::after { content: "\263E"; right: 10px; }
html[data-theme="dark"] .toggle span { transform: translateX(34px); background: #fff; }

/* ---------- Eyebrow / sections ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 16px;
  padding: 6px 9px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: var(--chip);
  color: color-mix(in srgb, var(--primary) 74%, var(--text));
  font-size: 13px; font-weight: 450;
}
.eyebrow i {
  width: 7px; height: 7px; border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--green) 13%, transparent);
}
section { padding: 44px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.section-title { margin: 0; font-size: clamp(25px, 3vw, 36px); line-height: 1.1; letter-spacing: -.045em; font-weight: 500; }
.section-note { max-width: 530px; margin: 8px 0 0; color: var(--muted); }

/* ---------- Pills ---------- */
.pill-row { display: flex; gap: 7px; flex-wrap: wrap; }
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 28px; padding: 5px 8px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--card-strong) 78%, transparent);
  color: var(--muted);
  font-size: 12px; font-weight: 420;
}
.pill.blue { color: var(--primary); background: color-mix(in srgb, var(--primary) 9%, transparent); }
.pill.green { color: var(--green); background: color-mix(in srgb, var(--green) 9%, transparent); }
.pill.pink { color: var(--magenta); background: color-mix(in srgb, var(--magenta) 9%, transparent); }
.pill.amber { color: var(--amber); background: color-mix(in srgb, var(--amber) 10%, transparent); }
.pill.violet { color: var(--violet); background: color-mix(in srgb, var(--violet) 10%, transparent); }

/* ---------- Cards / panels ---------- */
.panel {
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: var(--card);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-soft);
  padding: 20px;
}
.panel h3 { margin-bottom: 8px; font-size: 21px; letter-spacing: -.03em; font-weight: 520; }
.panel p { color: var(--muted); }

.metric {
  padding: 14px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--card) 78%, transparent);
  backdrop-filter: var(--glass-blur);
}
.metric strong { display: block; margin-bottom: 4px; font-size: 22px; font-weight: 520; letter-spacing: -.03em; }
.metric span { color: var(--muted); font-size: 13px; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; max-width: 680px; }

.control-card {
  padding: 14px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--card-strong) 76%, transparent);
}
.control-card h4 { margin: 0 0 9px; font-weight: 520; letter-spacing: -.02em; }
.control-card p { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.stat { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 10px 0 6px; font-size: 13px; color: var(--muted); }
.stat strong { color: var(--text); font-weight: 500; }

/* ---------- Meters ---------- */
.meter { height: 7px; overflow: hidden; border-radius: 999px; background: color-mix(in srgb, var(--muted) 16%, transparent); }
.meter span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--green), var(--cyan)); }
.meter.tox span { background: linear-gradient(90deg, var(--green), var(--amber)); }

/* ---------- Game cards (hub) ---------- */
.grid-games { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.game-card {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 255px;
  padding: 18px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: var(--card);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.game-card:hover { transform: translateY(-3px); border-color: var(--stroke-strong); box-shadow: var(--shadow); }
.game-card::before {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 86% 10%, color-mix(in srgb, var(--game-color, var(--primary)) 17%, transparent), transparent 36%);
}
.game-top { display: flex; align-items: start; justify-content: space-between; gap: 12px; position: relative; z-index: 1; }
.game-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--game-color, var(--primary)) 36%, var(--stroke));
  background: color-mix(in srgb, var(--game-color, var(--primary)) 11%, transparent);
  color: var(--game-color, var(--primary));
  font-size: 24px;
}
.game-card h3 { position: relative; z-index: 1; margin: 18px 0 7px; font-size: 22px; letter-spacing: -.03em; font-weight: 520; }
.game-card p { position: relative; z-index: 1; margin: 0; color: var(--muted); font-size: 14.5px; }
.game-foot { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 18px; }
.game-meta { display: flex; gap: 6px; flex-wrap: wrap; }

/* Domain accents */
.beamlet  { --game-color: var(--primary); }
.bragg    { --game-color: var(--cyan); }
.fraction { --game-color: var(--amber); }
.oar      { --game-color: var(--green); }
.contour  { --game-color: var(--magenta); }
.tki      { --game-color: var(--violet); }
.tox      { --game-color: var(--red); }

/* ---------- Leaderboard ---------- */
.leaderboard { display: grid; gap: 9px; margin-top: 18px; }
.score-row {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 11px 12px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--card-strong) 72%, transparent);
}
.score-row.me { border-color: color-mix(in srgb, var(--primary) 55%, var(--stroke)); background: color-mix(in srgb, var(--primary) 8%, var(--card-strong)); }
.rank { color: var(--muted); font-variant-numeric: tabular-nums; }
.player { display: grid; gap: 2px; min-width: 0; }
.player strong { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.player span { color: var(--muted); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.points { color: var(--text); font-variant-numeric: tabular-nums; font-weight: 520; }
.mock-head { display: flex; justify-content: space-between; align-items: center; gap: 14px; margin-bottom: 16px; }
.mock-title { display: grid; gap: 2px; }
.mock-title strong { font-size: 17px; font-weight: 520; letter-spacing: -.02em; }
.mock-title span { color: var(--muted); font-size: 13px; }

/* ---------- About / footer ---------- */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.about-card {
  padding: 24px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: var(--card);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-soft);
}
.about-card h2 { font-size: 30px; line-height: 1.1; letter-spacing: -.05em; font-weight: 500; margin-bottom: 12px; }
.about-card p { color: var(--muted); }
.footer { padding: 38px 0 48px; color: var(--muted); font-size: 13px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; border-top: 1px solid var(--stroke); padding-top: 18px; }

/* =====================================================================
   COMPOSANTS DE JEU GÉNÉRIQUES  (préfixe .oa-)  — nouveaux, partagés
   ===================================================================== */

/* Coque de jeu : topbar + scène + panneau latéral */
.oa-game {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: var(--card);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow);
}
.oa-stage {
  position: relative;
  min-height: min(60vh, 460px);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--primary) 7%, transparent), transparent 40%),
    radial-gradient(circle at 20% 22%, color-mix(in srgb, var(--magenta) 5%, transparent), transparent 32%),
    color-mix(in srgb, var(--bg-2) 76%, transparent);
  touch-action: manipulation;
}
.oa-side { display: grid; gap: 12px; align-content: start; }

/* Bandeau de score / HUD compact */
.oa-hud { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.oa-score { font-variant-numeric: tabular-nums; font-weight: 560; letter-spacing: -.02em; font-size: 20px; }
.oa-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 8px; border-radius: 999px;
  border: 1px solid var(--stroke);
  background: color-mix(in srgb, var(--card-strong) 78%, transparent);
  font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums;
}

/* Champs de saisie (pseudo) */
.oa-field {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: var(--bg-2);
  color: var(--text);
}
.oa-field:focus-visible { outline: 0; box-shadow: var(--focus); border-color: color-mix(in srgb, var(--primary) 50%, var(--stroke)); }
.oa-label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--muted); }

/* Modale (fin de partie, aide, soumission de score) */
.oa-overlay {
  position: fixed; inset: 0; z-index: 200;
  display: none;
  place-items: center;
  padding: 18px;
  background: color-mix(in srgb, #000 46%, transparent);
  backdrop-filter: blur(6px);
}
.oa-overlay.open { display: grid; }
.oa-modal {
  width: min(460px, 100%);
  max-height: calc(100vh - 36px);
  overflow: auto;
  padding: 22px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: var(--card-strong);
  box-shadow: var(--shadow);
  animation: oa-pop .18s ease;
}
@keyframes oa-pop { from { transform: translateY(8px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.oa-modal h2 { margin: 0 0 8px; font-size: 26px; letter-spacing: -.04em; font-weight: 520; }
.oa-modal .oa-big { font-size: clamp(40px, 9vw, 58px); font-weight: 560; letter-spacing: -.04em; line-height: 1; margin: 6px 0 2px; }
.oa-modal p { color: var(--muted); }
.oa-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.oa-actions .btn { flex: 1 1 auto; }

/* Note pédagogique de fin de partie */
.oa-note {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid var(--stroke);
  border-left: 3px solid var(--green);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--green) 6%, transparent);
  font-size: 13.5px;
}

/* Toasts */
.oa-toasts { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 300; display: grid; gap: 8px; width: min(420px, calc(100% - 24px)); }
.oa-toast {
  padding: 11px 14px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  background: var(--card-strong);
  box-shadow: var(--shadow-soft);
  font-size: 13.5px;
  animation: oa-pop .18s ease;
}
.oa-toast.err { border-left: 3px solid var(--red); }
.oa-toast.ok  { border-left: 3px solid var(--green); }

/* ---------- Bilingue ---------- */
html[lang="fr"] .en { display: none !important; }
html[lang="en"] .fr { display: none !important; }

/* ---------- Accessibilité mouvement ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero, .two-col, .about { grid-template-columns: 1fr; }
  .grid-games { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .oa-game { grid-template-columns: 1fr; }
  .oa-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .shell { width: min(100% - 24px, 1160px); }
  .topbar { align-items: start; border-radius: var(--radius); flex-direction: column; }
  .nav { width: 100%; flex-wrap: wrap; }
  .nav .btn { flex: 1 1 auto; }
  h1 { font-size: clamp(42px, 13vw, 62px); }
  .lead { font-size: 17px; }
  .metrics, .grid-games, .oa-side { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .footer-inner { display: grid; }
}