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

:root{
  --bg:      #1a0a12;
  --surface: #2a1420;
  --surface2:#3a1c2c;
  --accent:  #f43f5e;
  --accent-h:#fb7185;
  --accent2: #fda4af;
  --red:     #ef4444;
  --green:   #22c55e;
  --text:    #fdeef2;
  --muted:   #c99aab;
  --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%, #f43f5e22, transparent 55%),
  radial-gradient(ellipse at 90% 110%, #fb718514, transparent 50%), var(--bg);}

/* ── 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(42,20,32,0.9);backdrop-filter:blur(8px);border-bottom:1px solid #f43f5e33}
.nav-back{color:var(--accent2);text-decoration:none;font-size:.8rem;font-weight:700}
.nav-back:hover{color:#fff}
.header-center{font-size:1rem;font-weight:900;letter-spacing:.5px}
.score-chip{background:var(--accent);color:#fff;border-radius:2rem;padding:.2rem .8rem;font-size:.82rem;font-weight:900;box-shadow:0 0 16px #f43f5e66}

.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;align-items:center}

/* ── Accueil ────────────────────────────────────────────── */
#screen-home{text-align:center}
.home-hero{margin-top:.5rem}
.hero-emoji{font-size:2.8rem}
.hero-title{font-size:1.7rem;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}

.mode-grid{width:100%;max-width:440px;display:grid;grid-template-columns:1fr 1fr;gap:.7rem;margin-top:.3rem}
.mode-card{display:flex;flex-direction:column;gap:.2rem;text-align:left;
  background:var(--surface);border:1px solid #f43f5e26;border-radius:var(--r);
  padding:.9rem;cursor:pointer;color:var(--text);
  transition:transform .08s,border-color .15s,background .15s;touch-action:manipulation}
.mode-card:hover{border-color:#f43f5e80;background:var(--surface2)}
.mode-card:active{transform:scale(.97)}
.mode-icon{font-size:1.5rem}
.mode-label{font-weight:800;font-size:.9rem}
.mode-desc{color:var(--muted);font-size:.75rem;line-height:1.4}

.home-stats{margin-top:.3rem}
.stat-box{background:var(--surface2);border:1px solid #f43f5e26;border-radius:2rem;
  padding:.4rem 1rem;font-size:.8rem;color:var(--accent2);font-weight:700}

/* ── Quiz ───────────────────────────────────────────────── */
#screen-quiz{gap:.9rem}
.quiz-top{width:100%;max-width:480px}
.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:#3a1c2c;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{width:100%;max-width:480px;text-align:center;
  background:var(--surface);border:1px solid #f43f5e26;border-radius:var(--r);padding:1.1rem}
.prompt-flag{width:100%;max-width:280px;height:auto;border-radius:8px;
  box-shadow:0 6px 20px rgba(0,0,0,.5);border:1px solid rgba(255,255,255,.15)}
.prompt-tag{display:inline-block;color:var(--accent);font-size:.7rem;font-weight:800;
  text-transform:uppercase;letter-spacing:1.5px;background:#f43f5e1a;border:1px solid #f43f5e33;
  border-radius:2rem;padding:.15rem .7rem}
.prompt-word{font-size:clamp(1.5rem,7vw,2.4rem);font-weight:900;color:#fff;margin-top:.4rem;text-shadow:0 0 30px #f43f5e55}

/* Choix */
.choices{width:100%;max-width:480px;display:flex;flex-direction:column;gap:.55rem}
.choices-flags{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}
.choice-btn{width:100%;padding:.9rem 1rem;text-align:center;background:var(--surface);
  border:1.5px solid #f43f5e33;border-radius:var(--r);color:var(--text);font-size:1rem;font-weight:700;
  cursor:pointer;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:.5}
.choice-flag{padding:.5rem}
.choice-flag img{width:100%;height:auto;border-radius:6px;display:block;border:1px solid rgba(255,255,255,.12)}

/* Bas de quiz */
.quiz-bottom{width:100%;max-width:480px;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;display:flex;align-items:center;justify-content:center;gap:.4rem;flex-wrap:wrap}
.feedback-box.correct{background:#14532d55;color:#bbf7d0;border:1px solid #22c55e55}
.feedback-box.wrong{background:#4c1d1d55;color:#fecaca;border:1px solid #ef444455}
.fb-flag{width:2rem;height:auto;border-radius:3px;vertical-align:middle}

/* ── Résultats ──────────────────────────────────────────── */
#screen-results{align-items:center;justify-content:center}
.results-card{background:var(--surface);border:1px solid #f43f5e33;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:#fff;padding:.9rem 1.2rem;font-size:1rem;box-shadow:0 8px 24px #f43f5e44}
.btn-secondary{background:var(--surface2);color:var(--accent2);border:1px solid #f43f5e33;padding:.9rem 1.2rem;font-size:1rem}
.btn-next{background:linear-gradient(135deg,var(--accent),var(--accent-h));color:#fff;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)}

.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}}