/* ============================================================
   Culture Clash — thème partagé (extrait des écrans validés)
   ============================================================ */
:root{
  --void-1: #0a0f2e;
  --void-2: #151140;
  --void-3: #1c1f52;
  --nebula-gold: #f2c14e;
  --nebula-blue: #3d6fce;
  --nebula-violet: #7a4fd6;
  --gold: #f2c14e;
  --gold-soft: #fde8c0;
  --gold-line: #caa24a;
  --ink: #f4f7ff;
  --muted: #a9b7db;
  --blue-c: #4a7bea;

  --font-display: 'Baloo 2', system-ui, sans-serif;
  --font-body: 'Nunito Sans', system-ui, sans-serif;

  /* Catégories (reprises des cartes physiques) */
  --savoirs-bg: #ece2c6; --savoirs-ink: #241c0a;
  --culture-bg: #5b3f96; --culture-ink: #f4eefc;
  --sport-bg: #2e8f4f;   --sport-ink: #eafff1;
  --sante-bg: #2fa89b;   --sante-ink: #eafffb;
  --clash-bg: #c23b34;   --clash-ink: #fff0ee;

  /* Niveaux */
  --decouverte-1: #a7dc4f; --decouverte-2: #4c7a12; --decouverte-ink:#0d2103;
  --challenge-1: #4fc2f2;  --challenge-2: #045a8a;  --challenge-ink:#eaf7ff;
  --maitrise-1: #c46bab;   --maitrise-2: #5a1f4a;   --maitrise-ink:#fbeef7;
  --legende-1: #f6d27a;    --legende-2: #d99e2a;    --legende-ink:#2a1c05;

  --p1: #f2c14e; --p2: #4fc2f2; --p3: #c46bab; --p4: #7fe07f;
}

*{ box-sizing: border-box; }
html, body{ margin:0; padding:0; background:#05071a; }
body{ font-family: var(--font-body); color: var(--ink); }
@font-face { font-family: 'Baloo 2'; src: local('Baloo 2'); }

button{ font-family: inherit; }
input:focus-visible, button:focus-visible{ outline: 3px solid #fff; outline-offset: 2px; }

/* ---------- App shell / router ---------- */
#app{ min-height: 100vh; position: relative; }
.app-screen{ display: none; }
.app-screen.active{ display: block; }

/* ---------- Fond nébuleuse commun ---------- */
.nebula-bg{
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 70% 50% at 20% 0%, rgba(122,79,214,0.40), transparent 60%),
    radial-gradient(ellipse 70% 55% at 85% 10%, rgba(242,193,78,0.24), transparent 60%),
    radial-gradient(ellipse 90% 60% at 50% 105%, rgba(61,111,206,0.36), transparent 65%),
    linear-gradient(160deg, var(--void-1), var(--void-3) 45%, var(--void-2) 100%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.nebula-stars{
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1.8px 1.8px at 10% 20%, #fff, transparent),
    radial-gradient(1.8px 1.8px at 80% 15%, #fff, transparent),
    radial-gradient(1.3px 1.3px at 30% 70%, #fff, transparent),
    radial-gradient(1.3px 1.3px at 60% 85%, #fff, transparent),
    radial-gradient(1.8px 1.8px at 90% 60%, #fff, transparent),
    radial-gradient(1.3px 1.3px at 45% 35%, #fff, transparent),
    radial-gradient(1.8px 1.8px at 20% 90%, #fff, transparent),
    radial-gradient(1.3px 1.3px at 70% 40%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 15% 55%, #fde8c0, transparent),
    radial-gradient(1.5px 1.5px at 92% 35%, #fde8c0, transparent),
    radial-gradient(1.2px 1.2px at 55% 10%, #fff, transparent),
    radial-gradient(1.2px 1.2px at 38% 92%, #fff, transparent);
  background-repeat: no-repeat;
  opacity: 0.75;
  animation: nebula-twinkle 3.5s ease-in-out infinite alternate;
}
@keyframes nebula-twinkle{ from{opacity:.5;} to{opacity:.95;} }

.glow-orb{
  position: absolute; border-radius: 50%; filter: blur(40px); opacity: 0.5;
  animation: glow-drift 9s ease-in-out infinite alternate;
}
.glow-orb.o1{ width: 220px; height: 220px; background: var(--nebula-violet); top: -60px; left: -60px; }
.glow-orb.o2{ width: 260px; height: 260px; background: var(--nebula-blue); bottom: -100px; right: -80px; animation-delay: 1.5s; }
.glow-orb.o3{ width: 160px; height: 160px; background: var(--nebula-gold); top: 30%; right: 5%; animation-delay: 3s; }
@keyframes glow-drift{ from{ transform: translate(0,0) scale(1); } to{ transform: translate(12px,-10px) scale(1.08); } }

@media (prefers-reduced-motion: reduce){
  .nebula-stars, .glow-orb, .bolt-icon { animation: none !important; }
}

/* ---------- Marque C⚡C ---------- */
.brand-mark{ display: flex; align-items: center; justify-content: center; gap: 2px; }
.brand-mark .c{ font-family: var(--font-display); font-weight: 800; line-height: 1; }
.brand-mark .c1{ color: var(--gold); text-shadow: 0 0 20px rgba(242,193,78,0.65); }
.brand-mark .c2{ color: var(--blue-c); text-shadow: 0 0 20px rgba(74,123,234,0.65); }
.bolt-icon{ filter: drop-shadow(0 0 10px rgba(255,224,140,0.9)); animation: bolt-pulse 2.2s ease-in-out infinite; }
@keyframes bolt-pulse{
  0%,100%{ filter: drop-shadow(0 0 6px rgba(255,224,140,0.6)); transform: scale(1); }
  50%{ filter: drop-shadow(0 0 18px rgba(255,224,140,1)); transform: scale(1.06); }
}

/* ---------- Topbar commun (retour + logo) ---------- */
.topbar{
  position: relative; z-index: 2; width: 100%; max-width: 460px;
  display: flex; align-items: center; gap: 10px; margin-bottom: 6px;
}
.topbar-back{
  width: 36px; height: 36px; border-radius: 10px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16);
  color: var(--ink); font-size: 18px;
  display: flex; align-items:center; justify-content:center; cursor: pointer;
}
.topbar-back:hover{ background: rgba(255,255,255,0.16); }
.topbar-brand{ display:flex; align-items:center; gap:8px; opacity:0.9; }
.topbar-brand img{ height: 22px; }
.topbar-brand span{ font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing:0.04em; color: var(--gold-soft); }
.topbar-spacer{ flex: 1; }
.topbar-turn{
  font-family: var(--font-display); font-weight: 700; font-size: 13px;
  color: var(--gold-soft); letter-spacing: 0.03em;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14);
  padding: 6px 12px; border-radius: 999px; white-space: nowrap;
}

/* ---------- Boutons pleins et opaques (jamais transparents) ---------- */
.btn-solid{
  font-family: var(--font-display); font-weight: 700;
  border: none; border-radius: 14px; cursor: pointer;
  box-shadow: 0 8px 18px rgba(0,0,0,0.4);
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn-solid:hover{ filter: brightness(1.06); transform: translateY(-1px); }
.btn-solid:active{ transform: translateY(0); }
.btn-solid:disabled{ opacity: 0.5; cursor: default; transform:none; filter:none; }
.btn-gold{ color: #2a1c05; background: linear-gradient(135deg, #f6d27a, var(--gold) 60%, #d99e2a); }
.btn-blue{ color: #f4f7ff; background: linear-gradient(135deg, #6f97f2, var(--blue-c) 60%, #2c4fb0); }
.btn-ghost{
  color: var(--ink); background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover{ background: rgba(255,255,255,0.16); }
.btn-green{ color: #06280f; background: linear-gradient(135deg, #9be08a, #2e8f4f 60%, #1c5f33); }
.btn-red{ color: #fff0ee; background: linear-gradient(135deg, #e0685f, #c23b34 60%, #8a231e); }

/* ---------- Tooltip commun ---------- */
.tt{
  position: absolute; left: 50%; bottom: calc(100% + 10px);
  transform: translateX(-50%) translateY(4px);
  background: #fff; color: #16213e; font-size: 12.5px; font-weight: 600;
  padding: 8px 14px; border-radius: 10px; white-space: nowrap;
  box-shadow: 0 8px 18px rgba(0,0,0,0.35);
  opacity: 0; pointer-events: none;
  transition: opacity .15s ease, transform .15s ease; z-index: 5;
}
.tt::after{
  content: ""; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  border: 6px solid transparent; border-top-color: #fff;
}
.tt.visible{ opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Champs de formulaire ---------- */
.field-input{
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.22);
  color: var(--ink); border-radius: 12px; padding: 12px 14px; font-size: 15px;
  width: 100%; font-family: var(--font-body);
}
.field-input::placeholder{ color: var(--muted); }
.field-input:focus{ background: rgba(255,255,255,0.13); }

/* ---------- Utilitaires ---------- */
.sr-only{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); }