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

:root{
  --bg:       #1a1206;
  --surface:  #241a0c;
  --surface2: #33260f;
  --accent:   #f59e0b;
  --accent-h: #fbbf24;
  --accent2:  #fcd34d;
  --red:      #ef4444;
  --green:    #22c55e;
  --text:     #fdf6e9;
  --muted:    #b89a6b;
  --r:        .85rem;
  --h-header: 50px;
}

html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--text);
  font-family:'Segoe UI',system-ui,sans-serif;-webkit-tap-highlight-color:transparent;
  overscroll-behavior:none}

#confetti-canvas{position:fixed;inset:0;pointer-events:none;z-index:9999}

body{
  background:
    radial-gradient(ellipse at 50% -10%, #f59e0b22, transparent 55%),
    radial-gradient(ellipse at 90% 110%, #fb923c14, transparent 50%),
    var(--bg);
}

/* ── App shell ──────────────────────────────────────────── */
.app-shell{
  height:100dvh;display:grid;grid-template-rows:var(--h-header) 1fr;
  padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);
}
.app-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:0 1rem;background:rgba(36,26,12,0.9);backdrop-filter:blur(8px);
  border-bottom:1px solid #f59e0b33;
}
.nav-back{color:var(--accent2);text-decoration:none;font-size:.8rem;font-weight:700}
.nav-back:hover{color:#fff}
.header-center{font-size:.95rem;font-weight:900;letter-spacing:.3px}
.score-chip{background:var(--accent);color:#1a1206;border-radius:2rem;
  padding:.2rem .8rem;font-size:.82rem;font-weight:900;box-shadow:0 0 16px #f59e0b55}

.app-main{overflow:hidden;position:relative}
.screen{
  position:absolute;inset:0;display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;padding:1rem;gap:1rem;
}

/* ── Accueil ────────────────────────────────────────────── */
#screen-home{align-items:center;text-align:center}
.home-hero{margin-top:.5rem}
.hero-emoji{font-size:2.6rem}
.hero-title{
  font-size:1.6rem;font-weight:900;letter-spacing:-.5px;margin-top:.2rem;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero-sub{color:var(--muted);font-size:.9rem;margin-top:.4rem;line-height:1.5}
.hero-hint{color:var(--accent2);font-weight:700;font-family:'Courier New',monospace}

/* Options (langue) */
.opt-block{width:100%;max-width:440px;display:flex;flex-direction:column;align-items:center;gap:.4rem}
.opt-label{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:1px}
.opt-hint{color:var(--muted);font-size:.72rem;min-height:1rem}
.toggle{display:inline-flex;background:var(--surface2);border-radius:2rem;padding:.25rem;gap:.25rem}
.toggle-btn{
  border:none;background:none;color:var(--muted);cursor:pointer;
  padding:.4rem .9rem;border-radius:2rem;font-size:.85rem;font-weight:700;
  transition:background .15s,color .15s;touch-action:manipulation;
}
.toggle-btn.active{background:var(--accent);color:#1a1206}

/* Modes */
.mode-grid{width:100%;max-width:440px;display:flex;flex-direction:column;gap:.7rem;margin-top:.3rem}
.mode-card{
  display:flex;flex-direction:column;gap:.2rem;text-align:left;
  background:var(--surface);border:1px solid #f59e0b26;border-radius:var(--r);
  padding:.9rem 1.1rem;cursor:pointer;color:var(--text);
  transition:transform .08s,border-color .15s,background .15s;touch-action:manipulation;
}
.mode-card:hover{border-color:#f59e0b80;background:var(--surface2)}
.mode-card:active{transform:scale(.98)}
.mode-icon{font-size:1.5rem}
.mode-label{font-weight:800;font-size:1rem}
.mode-desc{color:var(--muted);font-size:.8rem;line-height:1.45}

.home-stats{margin-top:.3rem}
.stat-box{
  background:var(--surface2);border:1px solid #f59e0b26;border-radius:2rem;
  padding:.4rem 1rem;font-size:.8rem;color:var(--accent2);font-weight:700;
}

/* ── Quiz ───────────────────────────────────────────────── */
#screen-quiz{gap:.9rem}
.quiz-top{width:100%}
.quiz-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:.4rem}
.quiz-mode-label{color:var(--accent2);font-size:.8rem;font-weight:700}
.quiz-counter{color:var(--muted);font-size:.85rem;font-weight:700}
.progress-bar{height:6px;background:#33260f;border-radius:3px;overflow:hidden}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .3s ease}

.quiz-prompt{
  text-align:center;background:var(--surface);border:1px solid #f59e0b26;
  border-radius:var(--r);padding:1.1rem;
}
.prompt-tag{
  display:inline-block;color:var(--accent);font-size:.7rem;font-weight:800;
  text-transform:uppercase;letter-spacing:1.5px;
  background:#f59e0b1a;border:1px solid #f59e0b33;border-radius:2rem;padding:.15rem .7rem;
}
.prompt-word{
  font-size:clamp(2rem,10vw,3rem);font-weight:900;color:#fff;margin-top:.4rem;
  text-shadow:0 0 30px #f59e0b55;
}
.prompt-sub{color:var(--muted);font-size:.9rem;margin-top:.25rem;font-style:italic}

/* Choix QCM */
.choices{display:flex;flex-direction:column;gap:.55rem}
.choice-btn{
  width:100%;padding:.9rem 1rem;text-align:center;
  background:var(--surface);border:1.5px solid #f59e0b33;border-radius:var(--r);
  color:var(--text);font-size:1.05rem;font-weight:700;cursor:pointer;
  font-family:'Courier New',monospace;letter-spacing:.3px;
  transition:transform .08s,border-color .15s,background .15s;touch-action:manipulation;
}
.choice-btn:hover{border-color:var(--accent)}
.choice-btn:active{transform:scale(.98)}
.choice-btn:disabled{cursor:default}
.choice-btn.correct{background:#14532d;border-color:var(--green);color:#bbf7d0}
.choice-btn.wrong  {background:#4c1d1d;border-color:var(--red);color:#fecaca}
.choice-btn.reveal {opacity:.55}

/* Bas de quiz */
.quiz-bottom{display:flex;flex-direction:column;gap:.6rem;align-items:center;margin-top:auto;padding-top:.4rem}
.feedback-box{
  width:100%;text-align:center;padding:.7rem .9rem;border-radius:var(--r);
  font-size:.95rem;font-weight:700;
}
.feedback-box.correct{background:#14532d55;color:#bbf7d0;border:1px solid #22c55e55}
.feedback-box.wrong  {background:#4c1d1d55;color:#fecaca;border:1px solid #ef444455}

/* ── Résultats ──────────────────────────────────────────── */
#screen-results{align-items:center;justify-content:center}
.results-card{
  background:var(--surface);border:1px solid #f59e0b33;border-radius:1.2rem;
  padding:2rem 1.6rem;max-width:400px;width:100%;text-align:center;
  box-shadow:0 16px 48px rgba(0,0,0,.5);
  animation:pop-in .35s cubic-bezier(.2,1.2,.4,1) both;
}
@keyframes pop-in{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:none}}
.results-emoji{font-size:3.4rem;line-height:1}
.results-title{font-size:1.4rem;font-weight:900;margin:.4rem 0}
.results-score{font-size:2.6rem;font-weight:900}
.results-details{color:var(--muted);font-size:.9rem;margin-top:.5rem;line-height:1.6}
.results-btns{display:flex;flex-direction:column;gap:.6rem;margin-top:1.4rem}

/* ── Boutons ────────────────────────────────────────────── */
.btn-primary,.btn-secondary,.btn-next,.btn-quit{
  border:none;border-radius:var(--r);font-weight:800;cursor:pointer;
  transition:transform .08s,filter .15s;touch-action:manipulation;
}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-h));color:#1a1206;padding:.9rem 1.2rem;font-size:1rem;box-shadow:0 8px 24px #f59e0b44}
.btn-secondary{background:var(--surface2);color:var(--accent2);border:1px solid #f59e0b33;padding:.9rem 1.2rem;font-size:1rem}
.btn-next{background:linear-gradient(135deg,var(--accent),var(--accent-h));color:#1a1206;padding:.75rem 1.6rem;font-size:1rem}
.btn-primary:active,.btn-secondary:active,.btn-next:active{transform:scale(.97)}
.btn-quit{background:none;color:var(--muted);padding:.5rem 1rem;font-size:.9rem}
.btn-quit:hover{color:var(--red)}

/* ── Animation « pop » ──────────────────────────────────── */
.pop{animation:pop .28s cubic-bezier(.2,1.4,.4,1) both}
@keyframes pop{0%{transform:scale(.7);opacity:.2}60%{transform:scale(1.06)}100%{transform:scale(1);opacity:1}}