*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --green-dark: #0a1f0a; --black: #091a09; --black-2: #0c2010;
      --card-bg: rgba(255,255,255,0.07); --card-border: rgba(255,255,255,0.48);
      --lime: #D9A857; --lime-dim: rgba(217,168,87,0.12); --lime-border: rgba(217,168,87,0.25);
      --cream: #E8F5E8; --cream-2: rgba(232,245,232,0.6); --cream-3: rgba(232,245,232,0.35);
      --blue: #60a5fa; --blue-dim: rgba(96,165,250,0.1); --blue-border: rgba(96,165,250,0.25);
      --orange: #fb923c; --orange-dim: rgba(251,146,60,0.08);
      --font-head: 'Syne', 'Cairo', sans-serif; --font-body: 'DM Sans', 'Cairo', sans-serif; --font-arabic: 'Cairo', sans-serif;
    }
    body { background: var(--black, #091a09); color: var(--cream, #E8F5E8); font-family: var(--font-body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }

    /* ─── NAV ───
       Barre du haut app : style canonique dans css/composants.css
       (.vgl-app-nav, .lang-toggle, .nav-auth-avatar, .nav-auth-btn). */
    .nav-logo { text-decoration:none; display:flex; align-items:center; } .logo-img { height:38px; width:auto; display:block; }
    .nav-logo .comma { color:var(--lime); }
    .logo-ar { display:none; font-family:var(--font-arabic); }
    [dir="rtl"] .logo-fr { display:none; }
    [dir="rtl"] .logo-ar { display:inline; }
    .nav-links { display:flex; gap:28px; align-items:center; }
    .nav-links a { color:var(--cream-2); text-decoration:none; font-size:14px; transition:color 0.2s; }
    .nav-links a:hover { color:var(--cream); }
    .nav-right { display:flex; gap:12px; align-items:center; }
    .btn-cta { background:var(--lime); color:var(--black); border:none; border-radius:var(--radius-lg); padding:10px 20px; font-size:14px; font-weight:500; cursor:pointer; font-family:var(--font-body); text-decoration:none; display:inline-block; }
    .hamburger { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px; }
    .hamburger span { display:block; width:24px; height:2px; background:var(--cream); border-radius:var(--radius-pill); transition:all 0.3s; }
    .hamburger.open span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
    .hamburger.open span:nth-child(2) { opacity:0; }
    .hamburger.open span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }
    .mobile-menu { display:none; position:fixed; inset:0; z-index:98; background:rgba(10,31,10,0.97); backdrop-filter:blur(16px); flex-direction:column; align-items:center; justify-content:center; gap:28px; padding:32px; }
    .mobile-menu.open { display:flex; }
    .mobile-menu a.mob-link { color:var(--cream); text-decoration:none; font-size:22px; font-weight:500; }
    .mobile-menu .mob-lang { display:flex; background:rgba(255,255,255,0.06); border-radius:var(--radius-lg); padding:2px; margin-top:8px; }

    /* ─── HERO ─── */
    .page-hero { background:var(--green-dark); padding:140px 48px 72px; text-align:center; position:relative; overflow:hidden; }
    .page-hero::before { content:''; position:absolute; inset:0; }
    .page-eyebrow { font-size:11px; font-weight:500; text-transform:uppercase; letter-spacing:0.15em; color:var(--lime); margin-bottom:16px; }
    .page-title { font-family:var(--font-head); font-size:clamp(28px,5vw,56px); font-weight:400; line-height:1.08; margin-bottom:16px; position:relative; }
    .page-sub { font-size:16px; color:var(--cream-2); max-width:560px; margin:0 auto; line-height:1.7; position:relative; }
    [dir="rtl"] .page-title, [dir="rtl"] .page-sub { font-family:var(--font-arabic); }

    /* CTA du hero réservé aux élèves connectés (Vague 5 — contenu par rôle).
       body.vgl-connected est posé par js/app.js (initSidebar, mode "auth")
       dès qu'une session active est résolue, toutes largeurs confondues :
       les visiteurs n'ont jamais la classe → le CTA reste invisible. */
    .hero-cta { display:none; justify-content:center; margin-top:24px; position:relative; }
    body.vgl-connected .hero-cta { display:flex; }
    .hero-cta a {
      display:inline-flex; align-items:center; gap:8px;
      padding:12px 24px; border-radius:var(--radius-pill);
      background:var(--lime); color:var(--black);
      font:700 14px var(--font-body); text-decoration:none;
      transition:transform .15s ease;
    }
    .hero-cta a:active { transform:translateY(2px); }
    [dir="rtl"] .hero-cta a { font-family:var(--font-arabic); font-size:15px; }

    /* ─── FILTERS ─── */
    .filters-bar { background:var(--black-2); padding:28px 48px; border-bottom:1px solid var(--card-border); position:sticky; top:57px; z-index:10; display:flex; gap:16px; flex-wrap:wrap; align-items:center; }
    .filter-group { display:flex; flex-direction:column; gap:6px; }
    .filter-label { font-size:10px; font-weight:400; text-transform:uppercase; letter-spacing:0.1em; color:var(--cream-3); }
    .filter-pills { display:flex; gap:6px; flex-wrap:wrap; }
    .pill { padding:6px 14px; border-radius:var(--radius-lg); font-size:12px; font-weight:500; cursor:pointer; border:1px solid var(--card-border); background:var(--card-bg); color:var(--cream-3); transition:all 0.15s; }
    .pill:hover { color:var(--cream); border-color:rgba(255,255,255,0.2); }
    .pill.active { background:var(--lime); color:var(--black); border-color:var(--lime); }
    .pill.active-libre { background:var(--blue); color:var(--black); border-color:var(--blue); }
    [dir="rtl"] .filters-bar { flex-direction:row-reverse; }

    /* ─── CONTENT ─── */
    .exams-section { padding:48px 48px 80px; }
    .container { max-width:1100px; margin:0 auto; }

    .year-group { margin-bottom:48px; }
    .year-heading { font-family:var(--font-head); font-size:22px; font-weight:400; margin-bottom:20px; display:flex; align-items:center; gap:16px; }
    .year-tag { font-size:13px; font-weight:500; padding:4px 14px; border-radius:var(--radius-sm); background:var(--lime-dim); border:1px solid var(--lime-border); color:var(--lime); font-family:var(--font-body); }
    .year-tag.libre { background:var(--blue-dim); border-color:var(--blue-border); color:var(--blue); }

    .exams-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }

    .exam-card {
      background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-md);
      padding:20px 20px 16px; cursor:pointer; transition:all 0.2s; text-decoration:none; color:var(--cream);
      display:flex; flex-direction:column; gap:10px;
    }
    .exam-card:hover { border-color:var(--lime-border); background:var(--lime-dim); transform:translateY(-2px); }
    .exam-card.libre-card:hover { border-color:var(--blue-border); background:var(--blue-dim); }
    .exam-top { display:flex; align-items:flex-start; justify-content:space-between; gap:8px; }
    .exam-matiere { font-weight:400; font-size:15px; line-height:1.3; }
    .exam-matiere-ar { font-family:var(--font-arabic); font-size:15px; font-weight:400; display:none; }
    [dir="rtl"] .exam-matiere { display:none; }
    [dir="rtl"] .exam-matiere-ar { display:block; }
    .exam-type-badge { font-size:10px; font-weight:400; padding:3px 9px; border-radius:var(--radius-sm); flex-shrink:0; white-space:nowrap; }
    .badge-normal { background:var(--lime-dim); border:1px solid var(--lime-border); color:var(--lime); }
    .badge-libre { background:var(--blue-dim); border:1px solid var(--blue-border); color:var(--blue); }
    .exam-filiere { font-size:12px; color:var(--cream-3); }
    .exam-meta { display:flex; gap:12px; align-items:center; }
    .exam-session { font-size:11px; color:var(--lime); font-weight:400; }
    .exam-session.libre-session { color:var(--blue); }
    .exam-pages { font-size:11px; color:var(--cream-3); }
    .exam-actions { display:flex; gap:8px; margin-top:4px; }
    .btn-sujet, .btn-corrige { flex:1; padding:8px 0; border-radius:var(--radius-sm); font-size:12px; font-weight:500; cursor:pointer; border:none; text-align:center; text-decoration:none; display:block; transition:all 0.15s; }
    .btn-sujet { background:rgba(255,255,255,0.06); color:var(--cream-2); }
    .btn-sujet:hover { background:rgba(255,255,255,0.1); }
    .btn-corrige { background:var(--lime); color:var(--black); }
    .btn-corrige:hover { opacity:0.9; }
    .btn-corrige.blue-btn { background:var(--blue); }
    [dir="rtl"] .exam-top { flex-direction:row-reverse; }
    [dir="rtl"] .exam-actions { flex-direction:row-reverse; }

    /* empty state */
    .empty-state { text-align:center; padding:80px 20px; color:var(--cream-3); }
    .empty-state-icon { font-size:48px; margin-bottom:16px; }
    .empty-state-text { font-size:16px; }

    /* ─── RTL ─── */
    [dir="rtl"] .nav-links { flex-direction:row-reverse; }
    [dir="rtl"] .nav-right { flex-direction:row-reverse; }

    /* ─── RESPONSIVE ─── */
    @media (max-width:768px) {
      .nav-links { display:none; }
      .nav-right .btn-cta { display:none; }
      .page-hero { padding:110px 20px 60px; }
      .filters-bar { padding:20px 16px; gap:12px; top:54px; }
      .exams-section { padding:32px 16px 60px; }
      .exams-grid { grid-template-columns:1fr; gap:10px; }
    }
    @media (min-width:1024px) {
      .page-hero { padding:160px 64px 90px; }
      .filters-bar { padding:24px 64px; }
      .exams-section { padding:56px 64px 80px; }
      /* La barre du haut app reste visible au-dessus de la sidebar
         (arbitrage 2026-08-21) : les offsets « header masqué » de la
         Vague 4 sont retirés. */
    }
  
    .prog-fill, .resume-prog-fill, .prog-bar-fill {
      background: var(--lime) !important;
    }
    /* ── Footer: logo image as chalkboard background ── */
    footer { position: relative !important; }
    
    /* ── Brand mark (nav logo) ── */
    .nav-logo { text-decoration:none; display:flex; align-items:center; }
    .brand-mark {
      display:inline-flex; align-items:center; gap:0;
      font-family:var(--font-head,'Syne',sans-serif); font-weight:400; font-size:22px;
      color:var(--craie,#E8F5E8); letter-spacing:-0.03em; line-height:1;
    }
    .brand-mark .bm-comma { color:var(--craie-doree,#D9A857); font-size:26px; margin-inline-start:1px; }
    .logo { text-decoration:none; }
    .logo .brand-mark { font-size:20px; }