:root {
  --bg: #0c0e1a;
  --bg-card: rgba(22, 26, 42, 0.85);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f1f5f9;
  --muted: #64748b;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --gold: #fbbf24;
  --discord: #5865F2;
  --sidebar-w: 260px;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --glass: blur(12px);
  --transition: .25s ease;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 60% at 20% -10%, rgba(99,102,241,.18), transparent),
    radial-gradient(ellipse 60% 40% at 85% 80%, rgba(139,92,246,.12), transparent);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  animation: pageFadeIn 0.4s ease-out;
}
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── UTILITIES ───────────────────── */
.hidden { display: none !important; }
.glass {
  background: var(--bg-card);
  backdrop-filter: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
a { color: inherit; text-decoration: none; }

/* ── BUTTONS ────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.5rem; border-radius: 8px;
  font-weight: 600; font-size: .95rem;
  cursor: pointer; border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(99,102,241,.4); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { background: rgba(255,255,255,.05); }
.btn-gold { background: linear-gradient(135deg, #f59e0b, #d97706); color:#fff; }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(245,158,11,.4); }
.btn-discord { background: var(--discord); color:#fff; }
.btn-discord:hover { transform: translateY(-2px); }
.btn-danger { background: var(--danger); color:#fff; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1.1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── FORM ───────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display:block; font-size:.85rem; color:var(--muted); margin-bottom:.5rem; }
.form-group input {
  width: 100%; padding: .85rem 1rem;
  background: rgba(0,0,0,.25);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: 1rem;
  transition: var(--transition);
}
.form-group input:focus { outline:none; border-color: var(--accent); background: rgba(0,0,0,.4); }
.form-error { color: var(--danger); font-size:.85rem; margin-top:.75rem; text-align:center; display:none; }

/* ── BADGE ──────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: .25rem .75rem; border-radius: 20px;
  font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing:.05em;
}
.badge-premium { background: rgba(251,191,36,.15); color: var(--gold); border:1px solid rgba(251,191,36,.3); }
.badge-free    { background: rgba(255,255,255,.08); color: var(--muted); border:1px solid var(--border); }
.badge-success { background: rgba(16,185,129,.15); color: var(--success); border:1px solid rgba(16,185,129,.3); }

/* ── NAV BARRE FIXE (Landing) ────── */
.topnav {
  position: fixed; top:0; left:0; width:100%; z-index:99;
  display:flex; align-items:center; justify-content:space-between;
  padding: 1.2rem 5%;
  background: rgba(12,14,26,.85); backdrop-filter: var(--glass);
  border-bottom: 1px solid var(--border);
}
.topnav-logo { display:flex; align-items:center; text-decoration:none; }
.topnav-logo img { height: 32px; width: auto; object-fit: contain; }
.topnav-links { display:flex; gap:1rem; align-items:center; }

/* ── SIDEBAR ────────────────────── */
.layout { display:flex; min-height:100vh; }
.sidebar {
  width: var(--sidebar-w); min-height:100vh;
  position: fixed; left:0; top:0;
  padding: 2rem 1.25rem;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border);
  background: rgba(12,14,26,.95);
  backdrop-filter: var(--glass);
  z-index: 50;
}
.sidebar-logo { display:flex; align-items:center; text-decoration:none; margin-bottom:2.5rem; }
.sidebar-logo img { height: 32px; width: auto; object-fit: contain; }
.nav-list { list-style:none; display:flex; flex-direction:column; gap:.25rem; flex:1; }
.nav-item a, .nav-item button {
  display:flex; align-items:center; gap:.75rem;
  width:100%; padding:.8rem 1rem; border-radius:8px;
  color: var(--muted); font-weight:500; font-size:.95rem;
  background:transparent; border:none; cursor:pointer;
  transition: var(--transition); text-align:left;
}
.nav-item a:hover, .nav-item button:hover, .nav-item.active a { background:rgba(255,255,255,.06); color:var(--text); }
.nav-item.active a { border-left:3px solid var(--accent); }
.nav-item.nav-danger button { color: var(--danger); }
.nav-icon { width:20px; text-align:center; font-size:1.1rem; }

/* ── MAIN CONTENT ───────────────── */
.main { margin-left:var(--sidebar-w); flex:1; padding:2.5rem 3.5rem; }
.page-header { margin-bottom: 2.5rem; padding-bottom:1.5rem; border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; }
.page-title { font-size:1.75rem; font-weight:700; }
.page-subtitle { color:var(--muted); margin-top:.35rem; }

/* ── STAT CARDS ─────────────────── */
.stats-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:1.25rem; margin-bottom:2.5rem; }
.stat-card { padding:1.5rem; }
.stat-label { font-size:.85rem; color:var(--muted); margin-bottom:.5rem; }
.stat-value { font-size:2rem; font-weight:800; }
.stat-sub { font-size:.8rem; color:var(--success); margin-top:.35rem; }

/* ── MODULE GRID ────────────────── */
.modules-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:1.5rem; }
.module-card { padding:1.5rem; cursor:pointer; transition:transform var(--transition), background var(--transition); position:relative; overflow:hidden; }
.module-card:hover { transform:translateY(-4px); background:rgba(255,255,255,.06); }
.module-icon { font-size:1.75rem; margin-bottom:1rem; }
.module-title { font-size:1.05rem; font-weight:600; margin-bottom:.35rem; }
.module-count { font-size:.85rem; color:var(--muted); }
.module-progress { height:5px; background:rgba(255,255,255,.08); border-radius:3px; margin-top:1rem; }
.module-fill { height:100%; background:var(--accent); border-radius:3px; transition:width .6s ease; }
.module-limit { position:absolute; top:.75rem; right:.75rem; font-size:.7rem; background:rgba(251,191,36,.12); color:var(--gold); padding:.2rem .5rem; border-radius:20px; border:1px solid rgba(251,191,36,.2); }

/* ── EXAM BANNER ────────────────── */
.exam-banner { padding:2rem 2.5rem; margin-bottom:2.5rem; display:flex; justify-content:space-between; align-items:center; border:1px solid rgba(99,102,241,.25); background:linear-gradient(135deg,rgba(99,102,241,.08),rgba(139,92,246,.08)); }
.exam-banner h2 { font-size:1.4rem; margin-bottom:.4rem; }
.exam-banner p { color:var(--muted); }

/* ── QUIZ PLAYER ────────────────── */
.player-wrap { max-width:760px; margin:0 auto; padding:2rem; }
.player-topbar { display:flex; justify-content:space-between; align-items:center; margin-bottom:2rem; }
.progress-label { font-weight:600; color:var(--muted); }
.timer-display { font-size:1.2rem; font-weight:700; font-variant-numeric:tabular-nums; color:var(--gold); }
.question-card { padding:3rem; text-align:center; }
.q-tag { display:inline-block; padding:.4rem 1rem; border-radius:20px; background:rgba(255,255,255,.07); color:var(--muted); font-size:.78rem; text-transform:uppercase; letter-spacing:1px; margin-bottom:1.5rem; }
.q-text { font-size:1.35rem; font-weight:600; line-height:1.55; margin-bottom:2.5rem; }
.options { display:flex; flex-direction:column; gap:1rem; text-align:left; }
.option {
  padding:1.2rem 1.5rem; border-radius:10px; cursor:pointer;
  border: 1px solid var(--border); background:rgba(255,255,255,.03);
  font-size:1rem; color:var(--text);
  transition: var(--transition);
}
.option:hover:not(:disabled) { background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.2); }
.option.correct   { border-color:var(--success) !important; background:rgba(16,185,129,.15) !important; color:var(--success); }
.option.incorrect { border-color:var(--danger) !important;  background:rgba(239,68,68,.15) !important; color:var(--danger); }
.option:disabled  { cursor:default; }
.player-footer { margin-top:2rem; display:flex; justify-content:flex-end; }

/* ── EXPLANATION BOX ────────────── */
.explanation-box {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: var(--radius);
  background: rgba(30, 41, 59, 0.5); border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  color: var(--text);
  font-size: .95rem; line-height: 1.6;
  text-align: left;
}
.explanation-box.success { border-left-color: var(--success); }
.explanation-box.error { border-left-color: var(--danger); }
.exp-title { font-weight: 700; margin-bottom: .5rem; display: flex; align-items: center; gap: .5rem; }

/* ── MICRO ANIMATIONS ───────────── */
@keyframes slideUpFade {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes shakeError {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}
.animate-slide-up { animation: slideUpFade 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.animate-shake { animation: shakeError 0.3s ease-in-out; }

/* ── RESULTS ────────────────────── */
.results-wrap { max-width:600px; margin:5rem auto; text-align:center; padding:3rem; }
.score-giant { font-size:5rem; font-weight:900; margin:1rem 0; }
.score-pass  { color:var(--success); }
.score-fail  { color:var(--warning); }

/* ── PAYWALL MODAL ──────────────── */
.modal-bg { position:fixed; inset:0; background:rgba(0,0,0,.75); backdrop-filter:blur(8px); display:flex; align-items:center; justify-content:center; z-index:200; }
.modal-box { width:90%; max-width:480px; padding:3rem; position:relative; text-align:center; }
.modal-close { position:absolute; top:1rem; right:1.5rem; background:transparent; border:none; color:var(--muted); font-size:1.5rem; cursor:pointer; }
.modal-box h2 { font-size:2rem; margin-bottom:1rem; }
.modal-box p  { color:var(--muted); line-height:1.6; margin-bottom:1.5rem; }
.feature-list { list-style:none; text-align:left; margin-bottom:2rem; }
.feature-list li { padding:.6rem 0; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:.75rem; }
.feature-list li::before { content:'✅'; }

/* ── LANDING PAGE ───────────────── */
#landing { padding-top: 6rem; }
.hero { max-width:900px; margin:0 auto; text-align:center; padding:5rem 2rem 4rem; }
.hero h1 { font-size:3.8rem; font-weight:900; line-height:1.1; margin-bottom:1.5rem; }
.hero p  { font-size:1.2rem; color:var(--muted); max-width:640px; margin:0 auto 2.5rem; line-height:1.65; }
.hero-cta { display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }
.benefits { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:1.75rem; padding:4rem 5%; }
.benefit-card { padding:2rem; border-top:3px solid var(--accent); }
.benefit-card.discord { border-top-color:var(--discord); }
.benefit-card h3 { font-size:1.15rem; margin-bottom:.75rem; }
.benefit-card p  { color:var(--muted); line-height:1.6; font-size:.95rem; }
.discord-section { margin:2rem 5% 4rem; padding:2.5rem; display:flex; justify-content:space-between; align-items:center; gap:2rem; border:1px solid rgba(88,101,242,.3); background:linear-gradient(135deg,rgba(88,101,242,.08),rgba(88,101,242,.02)); }
.discord-section h2 { font-size:1.75rem; margin-bottom:.75rem; }
.discord-section p  { color:var(--muted); line-height:1.6; }
.testimonials { padding:3rem 5%; }
.testimonials h2 { text-align:center; font-size:2rem; margin-bottom:2rem; }
.testi-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1.25rem; }
.testi { padding:1.5rem; }
.testi-text { color:var(--muted); line-height:1.6; margin-bottom:1rem; font-style:italic; }
.testi-name { font-weight:600; font-size:.9rem; }
.testi-stars { color:var(--gold); margin-bottom:.5rem; }
.site-footer { text-align:center; padding:2.5rem 5%; border-top:1px solid var(--border); color:var(--muted); font-size:.8rem; line-height:1.6; }
.footer-links { display:flex; justify-content:center; gap:2rem; margin-bottom:1rem; }
.footer-links a { color:var(--muted); transition:color var(--transition); }
.footer-links a:hover { color:var(--text); }

/* ── AUTH PAGE ──────────────────── */
.auth-center { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:2rem; }
.auth-card { width:100%; max-width:420px; padding:3rem; text-align:center; }
.auth-logo { display:flex; justify-content:center; align-items:center; text-decoration:none; margin-bottom:2rem; }
.auth-logo img { height: 45px; width: auto; object-fit: contain; }
.auth-sub { color:var(--muted); margin-bottom:2rem; }
.auth-toggle { margin-top:1.5rem; color:var(--muted); font-size:.88rem; }
.auth-toggle a { color:var(--accent); }
.tab-switcher { display:flex; gap:.5rem; margin-bottom:2rem; background:rgba(0,0,0,.25); padding:.35rem; border-radius:10px; }
.tab-btn { flex:1; padding:.6rem; border-radius:7px; border:none; background:transparent; color:var(--muted); font-weight:600; cursor:pointer; transition:var(--transition); }
.tab-btn.active { background:var(--bg-card); color:var(--text); }

/* ── MENTIONS LÉGALES ───────────── */
.legal-wrap { max-width:800px; margin:0 auto; padding:8rem 2rem 4rem; }
.legal-wrap h1 { font-size:2.5rem; margin-bottom:.5rem; }
.legal-wrap .subtitle { color:var(--muted); margin-bottom:3rem; }
.legal-wrap h2 { font-size:1.25rem; font-weight:700; margin:2rem 0 1rem; }
.legal-wrap p, .legal-wrap li { color:var(--muted); line-height:1.75; }
.legal-wrap li { margin-left:1.5rem; margin-bottom:.5rem; }