:root {
    --beige:       #F2E8D5;
    --beige-mid:   #EADDBf;
    --beige-dark:  #D9CBA8;
    --beige-light: #F9F4EA;
    --parchment:   #FBF8F1;
    --blue:        #1E3A6E;
    --blue-hover:  #16305C;
    --blue-soft:   #2E5FA3;
    --blue-pale:   #D0DDF0;
    --blue-ghost:  #EBF0F9;
    --text:        #1C2B45;
    --text-body:   #3A4A62;
    --text-muted:  #7A8A9E;
    --text-light:  #AAB4C4;
    --border:      #D6C9A8;
    --border-soft: #E5D9BE;
    --shadow-sm:   0 1px 8px rgba(30,58,110,.07);
    --shadow:      0 3px 18px rgba(30,58,110,.10);
    --shadow-md:   0 6px 28px rgba(30,58,110,.14);
    --stamp:       #A5382A;   /* accent unique : rouge tampon / ex-libris */
    --stamp-soft:  #C15A49;
    --mono:        'Space Mono', ui-monospace, monospace;
    --r:    3px;
    --r-lg: 4px;
    --r-xl: 6px;
    --input-bg:    #fff;
    --accent:      var(--beige);
    --accent-2:    var(--parchment);
    --heading:     var(--blue);
    color-scheme: light;
  }

  /* ══════════════════════════════════════════════════════════════════════════ */
  /*  THÈME SOMBRE                                                               */
  /* ══════════════════════════════════════════════════════════════════════════ */
  [data-theme="dark"]{
    color-scheme: dark;
    --beige:       #11151C;
    --beige-mid:   #2A323F;
    --beige-dark:  #3A4453;
    --beige-light: #1B212B;
    --parchment:   #1A1F29;
    --blue:        #16223B;
    --blue-hover:  #1E2C49;
    --blue-soft:   #6F9BE6;
    --blue-pale:   #2C3E5C;
    --blue-ghost:  #1F2A3D;
    --text:        #E7EBF2;
    --text-body:   #BFC8D4;
    --text-muted:  #8A95A6;
    --text-light:  #5F6B7C;
    --border:      #2E3744;
    --border-soft: #2A323D;
    --shadow-sm:   0 1px 8px rgba(0,0,0,.35);
    --shadow:      0 3px 18px rgba(0,0,0,.45);
    --shadow-md:   0 6px 28px rgba(0,0,0,.55);
    --input-bg:    #222B37;
    --accent:      #E7D6AC;
    --accent-2:    #F0E3C2;
    --heading:     #8FB4F0;
  }
  /* Titres bleus -> bleu clair lisible sur fond sombre */
  [data-theme="dark"] .sec-title,
  [data-theme="dark"] .info-title,
  [data-theme="dark"] .info-card h3,
  [data-theme="dark"] .up-head h2,
  [data-theme="dark"] .uok h3,
  [data-theme="dark"] .modal-h h3,
  [data-theme="dark"] .profile-title,
  [data-theme="dark"] .profile-card h3,
  [data-theme="dark"] .preview-head h3,
  [data-theme="dark"] .warning-box strong,
  [data-theme="dark"] .sec-link:hover,
  [data-theme="dark"] .ud-item:hover,
  [data-theme="dark"] .us.done .usn{color:var(--heading);}
  /* Boutons CTA beige : conserver un accent clair sur fond sombre */
  [data-theme="dark"] .btn-primary,
  [data-theme="dark"] .btn-cta,
  [data-theme="dark"] .nb-create,
  [data-theme="dark"] .nav-avatar{background:var(--accent)!important;color:#14213C!important;border-color:var(--accent);}
  [data-theme="dark"] .btn-primary:hover,
  [data-theme="dark"] .btn-cta:hover,
  [data-theme="dark"] .nb-create:hover,
  [data-theme="dark"] .nav-avatar:hover{background:var(--accent-2)!important;color:#14213C!important;}
  /* Champs de formulaire (fond blanc codé en dur) */
  [data-theme="dark"] .fg input,
  [data-theme="dark"] .fg textarea,
  [data-theme="dark"] .fg select,
  [data-theme="dark"] .profile-form input,
  [data-theme="dark"] #pf-cursus-select{background:var(--input-bg)!important;color:var(--text);border-color:var(--border)!important;}
  [data-theme="dark"] .fitem{background:var(--input-bg);}
  /* Toast : fond sombre fixe pour rester lisible */
  [data-theme="dark"] .toast{background:#0C1117;color:#fff;}

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

  :focus-visible{outline:3px solid rgba(242,232,213,.95);outline-offset:3px;}
  button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid rgba(242,232,213,.95);outline-offset:3px;}

  body{
    font-family:'DM Sans',sans-serif;
    background:var(--beige);
    color:var(--text);
    min-height:100vh;
    font-size:15px;
    line-height:1.65;
    transition:background-color .25s ease,color .25s ease;
  }

  /* ── NAVBAR ── */
  nav{background:var(--blue);position:sticky;top:0;z-index:100;border-top:3px solid var(--stamp);border-bottom:1px solid rgba(242,232,213,.22);box-shadow:var(--shadow);}
  .nav-in{max-width:1180px;margin:0 auto;display:flex;align-items:center;padding:0 28px;height:60px;gap:0;position:relative;}
  .logo{display:flex;align-items:center;gap:10px;cursor:pointer;margin-right:32px;flex-shrink:0;}
  .logo-b{width:34px;height:34px;border-radius:8px;display:block;flex-shrink:0;}
  .logo-txt{display:flex;flex-direction:column;justify-content:center;line-height:1.05;}
  .logo-t{font-family:'Playfair Display',serif;font-size:19px;font-weight:700;color:#fff;}
  .logo-t em{color:var(--beige-dark);font-style:normal;}
  .logo-sub{font-family:var(--mono);font-size:10px;text-transform:uppercase;color:rgba(255,255,255,.55);letter-spacing:.12em;margin-top:3px;}
  .nav-links{display:flex;align-items:center;gap:2px;flex:1;}
  .nav-toggle{display:none;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.12);color:#fff;border-radius:3px;padding:9px 14px;font-size:13px;font-weight:600;cursor:pointer;margin-left:auto;transition:all .2s;}
  .nav-toggle:hover{background:rgba(255,255,255,.2);}
  .nav-toggle[aria-expanded="true"]{background:rgba(242,232,213,.2);color:var(--beige);}
  .nav-menu{display:flex;align-items:center;gap:12px;flex:1;justify-content:flex-end;}
  .nav-links{display:flex;align-items:center;gap:2px;flex:1;}
  .nb{color:rgba(255,255,255,.7);border:none;background:none;padding:8px 15px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .18s;white-space:nowrap;}
  .nb:hover{background:rgba(255,255,255,.12);color:#fff;}
  .nb.active{color:var(--beige);font-weight:600;background:rgba(255,255,255,.1);}
  .nb-create{color:var(--blue)!important;background:var(--beige);font-weight:600;}
  .nb-create:hover{background:var(--parchment);color:var(--blue)!important;}
  .nav-search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:3px;padding:0 14px;margin-right:14px;}
  .nav-search input{background:none;border:none;outline:none;color:#fff;font-size:14px;width:200px;font-family:'DM Sans',sans-serif;padding:8px 0;}
  .nav-search input::placeholder{color:rgba(255,255,255,.38);}
  .btn-cta{background:var(--beige);color:var(--blue);border:none;border-radius:3px;padding:9px 20px;font-size:14px;font-weight:600;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .2s;display:flex;align-items:center;gap:6px;white-space:nowrap;}
  .btn-cta:hover{background:var(--parchment);transform:translateY(-1px);box-shadow:var(--shadow);}

  /* ── VUES ── */
  .view{display:none;}
  .view.active{display:block;}

  /* ── HÉRO ── */
  .hero{background:var(--blue);padding:60px 28px 68px;text-align:center;position:relative;overflow:hidden;}
  .hero::after{content:'';position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,transparent,transparent 39px,rgba(255,255,255,.04) 39px,rgba(255,255,255,.04) 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,rgba(255,255,255,.04) 39px,rgba(255,255,255,.04) 40px);pointer-events:none;}
  .hero-pill{display:inline-flex;align-items:center;gap:10px;background:none;border:none;border-radius:0;padding:0;color:var(--beige);font-family:var(--mono);font-size:12px;font-weight:400;text-transform:uppercase;letter-spacing:.14em;margin-bottom:22px;position:relative;z-index:1;}
  .hero-pill svg{display:none;}
  .hero-pill::before{content:'';width:9px;height:9px;background:var(--stamp);display:inline-block;flex-shrink:0;}
  .hero h1{font-family:'Playfair Display',serif;font-size:50px;font-weight:700;color:#fff;line-height:1.12;margin-bottom:16px;position:relative;z-index:1;}
  .hero h1 em{color:var(--beige-dark);font-style:normal;}
  .hero p{color:rgba(255,255,255,.68);font-size:17px;max-width:500px;margin:0 auto 36px;position:relative;z-index:1;}
  .hero-btns{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
  .btn-primary{background:var(--beige);color:var(--blue);border:none;border-radius:3px;padding:13px 28px;font-size:15px;font-weight:600;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .2s;display:inline-flex;align-items:center;gap:8px;}
  .btn-primary:hover{background:var(--parchment);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.25);}
  .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.3);border-radius:3px;padding:12px 28px;font-size:15px;font-weight:500;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all .2s;}
  .btn-ghost:hover{background:rgba(255,255,255,.18);}
  .hero-stats{display:flex;justify-content:center;gap:44px;margin-top:48px;padding-top:30px;border-top:1px solid rgba(255,255,255,.14);position:relative;z-index:1;}
  .hstat-num{font-family:'Playfair Display',serif;font-size:32px;font-weight:700;color:var(--beige);display:block;}
  .hstat-lbl{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.5);margin-top:4px;}

  /* ── SECTIONS ── */
  .section{max-width:1180px;margin:0 auto;padding:48px 28px;}
  .sec-hd{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:26px;}
  .sec-title{font-family:'Playfair Display',serif;font-size:24px;font-weight:700;color:var(--blue);}
  .sec-link{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--blue-soft);cursor:pointer;font-weight:400;display:flex;align-items:center;gap:5px;background:none;border:none;}
  .sec-link:hover{color:var(--stamp);}
  .alt{background:var(--parchment);border-top:1px solid var(--beige-mid);border-bottom:1px solid var(--beige-mid);}

  /* ── GRILLE MATIÈRES ── */
  .subjects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(195px,1fr));gap:16px;}
  .subject-card{background:var(--parchment);border:1.5px solid var(--border-soft);border-radius:var(--r-lg);padding:22px 18px;cursor:pointer;transition:all .22s;position:relative;overflow:hidden;}
  .subject-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--sc,var(--blue));border-radius:var(--r-lg) var(--r-lg) 0 0;}
  .subject-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--blue-pale);}
  .sc-icon{width:46px;height:46px;border-radius:4px;background:var(--sb,var(--blue-ghost));display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-size:24px;font-weight:700;color:var(--sc,var(--blue));margin-bottom:14px;}
  .sc-count{position:absolute;top:14px;right:14px;background:var(--sb,var(--blue-ghost));color:var(--sc,var(--blue-soft));font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.03em;padding:3px 8px;border-radius:2px;}
  .sc-name{font-weight:600;font-size:15px;color:var(--text);margin-bottom:3px;line-height:1.3;}
  .sc-meta{font-size:12px;color:var(--text-muted);}
  .create-card{border:2px dashed var(--beige-dark)!important;background:transparent!important;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;min-height:152px;}
  .create-card::before{display:none!important;}
  .create-card:hover{border-color:var(--blue-soft)!important;background:var(--blue-ghost)!important;}
  .create-plus{width:40px;height:40px;border-radius:50%;border:2px dashed var(--blue-pale);background:var(--blue-ghost);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--blue-soft);}

  /* ── GRILLE DOCS ── */
  .docs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:18px;}
  .doc-card{background:var(--parchment);border:1.5px solid var(--border-soft);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;transition:all .22s;}
  .doc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--blue-pale);}
  .doc-thumb{height:112px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--border-soft);position:relative;overflow:hidden;}
  .doc-thumb-bg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:80px;opacity:.07;color:var(--blue);}
  .doc-badge{position:absolute;top:10px;left:10px;font-family:var(--mono);font-size:10.5px;font-weight:700;padding:4px 8px;border-radius:2px;text-transform:uppercase;letter-spacing:.06em;color:#fff;}
  .bc{background:var(--blue);}
  .bf{background:#1A7A4A;}
  .bp{background:#B83232;}
  .bcc{background:#7140BC;}
  .doc-ico{font-size:38px;position:relative;z-index:1;}
  .doc-body{padding:15px 16px;}
  .doc-title{font-weight:600;font-size:14.5px;color:var(--text);line-height:1.35;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .doc-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .doc-pill{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.02em;padding:3px 8px;border-radius:2px;}
  .doc-date{font-size:12px;color:var(--text-muted);}
  .doc-foot{padding:10px 16px;border-top:1px solid var(--beige-mid);display:flex;align-items:center;justify-content:space-between;}
  .doc-auth{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-muted);}
  .av{width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;}
  .doc-dl{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:4px;}

  /* ── EXPLORE ── */
  .exp-top{background:var(--blue);padding:32px 28px 28px;border-bottom:3px solid var(--beige-dark);}
  .exp-top-in{max-width:1180px;margin:0 auto;}
  .exp-top h2{font-family:'Playfair Display',serif;font-size:28px;color:#fff;margin-bottom:20px;}
  .frow{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
  .fsearch{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:0 14px;flex:1;min-width:180px;}
  .fsearch input{background:none;border:none;outline:none;color:#fff;font-size:14px;font-family:'DM Sans',sans-serif;padding:9px 0;width:100%;}
  .fsearch input::placeholder{color:rgba(255,255,255,.38);}
  .fsel{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:8px;padding:9px 14px;font-family:'DM Sans',sans-serif;font-size:14px;outline:none;cursor:pointer;min-width:160px;}
  .fsel option{background:var(--blue);}
  .ftabs{display:flex;gap:6px;background:rgba(0,0,0,.08);padding:4px;border-radius:8px;}
  .ftab{background:transparent;border:none;color:rgba(255,255,255,.55);padding:6px 16px;border-radius:6px;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;}
  .ftab:hover{color:rgba(255,255,255,.85);}
  .ftab.act{background:var(--blue-soft);color:#fff;font-weight:600;}

  /* ── INFORMATIONS ── */
  .info-wrap{max-width:760px;margin:48px auto 80px;padding:0 28px;}
  .info-title{font-family:'Playfair Display',serif;font-size:34px;color:var(--blue);margin-bottom:10px;margin-top:10px;}
  .info-sub{color:var(--text-muted);font-size:16px;margin-bottom:36px;}
  .info-card{background:var(--parchment);border:1.5px solid var(--border-soft);border-radius:var(--r-lg);padding:28px 30px;margin-bottom:18px;box-shadow:var(--shadow-sm);}
  .info-card h3{font-family:'Playfair Display',serif;font-size:18px;color:var(--blue);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--beige-mid);display:flex;align-items:center;gap:10px;}
  .info-row{display:flex;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px solid var(--beige-mid);font-size:15px;}
  .info-row:last-child{border-bottom:none;}
  .info-ico{font-size:20px;flex-shrink:0;margin-top:1px;}
  .info-lbl{color:var(--text-muted);font-size:14px;min-width:130px;flex-shrink:0;padding-top:1px;}
  .info-val{color:var(--text);font-weight:500;}
  .info-val a{color:var(--blue-soft);text-decoration:none;}
  .info-val a:hover{text-decoration:underline;}

  /* ── UPLOAD ── */
  .up-box{max-width:720px;margin:0 auto;background:var(--parchment);border:1.5px solid var(--border-soft);border-radius:var(--r-xl);padding:40px;position:relative;}
  .up-head{text-align:center;margin-bottom:36px;}
  .up-head h2{font-family:'Playfair Display',serif;font-size:28px;color:var(--blue);margin-bottom:8px;}
  .up-head p{color:var(--text-muted);font-size:15px;}
  .usteps{display:flex;justify-content:center;gap:8px;margin-bottom:40px;}
  .us{display:flex;align-items:center;gap:10px;}
  .usn{width:32px;height:32px;border-radius:50%;border:2px solid var(--beige-dark);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--text-muted);background:var(--beige-light);transition:all .3s;}
  .us.active .usn{background:var(--blue);color:#fff;border-color:var(--blue);}
  .us.done .usn{background:var(--blue-pale);color:var(--blue);border-color:var(--blue-pale);}
  .us.done .usn::before{content:'✓';font-size:16px;}
  .usl{font-size:13px;font-weight:500;color:var(--text-muted);}
  .us.active .usl{color:var(--text);font-weight:600;}
  .usep{width:32px;height:2px;background:var(--beige-dark);margin:0 -4px;}
  .hidden{display:none!important;}

  /* DZ */
  .dz{border:2px dashed var(--border);background:var(--beige-light);border-radius:var(--r-lg);padding:44px 24px;text-align:center;cursor:pointer;transition:all .22s;margin-bottom:24px;}
  .dz:hover,.dz.over{border-color:var(--blue-soft);background:var(--blue-ghost);}
  .dz-ico{font-family:var(--mono);font-size:42px;font-weight:700;line-height:1;color:var(--blue-pale);margin-bottom:12px;}
  .dz h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:6px;}
  .dz p{font-size:14px;color:var(--text-muted);}
  .dz-txt{font-size:13px;color:var(--text-light);margin-top:10px;}

  /* FORM */
  .fg{margin-bottom:22px;}
  .fg label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;}
  .fg input,.fg textarea,.fg select{width:100%;padding:11px 14px;border:1.5px solid var(--border-soft);border-radius:var(--r);font-family:'DM Sans',sans-serif;font-size:14px;color:var(--text);background:#fff;transition:all .2s;outline:none;}
  .fg input:focus,.fg textarea:focus,.fg select:focus{border-color:var(--blue-soft);box-shadow:0 0 0 3px var(--blue-ghost);}
  .fg textarea{resize:vertical;min-height:90px;}

  /* TYPE OPTS */
  .type-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;}
  .type-opt{border:1.5px solid var(--border-soft);border-radius:var(--r);padding:14px;text-align:center;cursor:pointer;transition:all .22s;background:var(--parchment);}
  .type-opt:hover{border-color:var(--blue-pale);background:var(--blue-ghost);}
  .type-opt.sel{border-color:var(--blue);background:var(--blue-ghost);box-shadow:var(--shadow-sm);}
  .to-ico{font-family:var(--mono);font-size:18px;font-weight:700;letter-spacing:.06em;color:var(--blue);margin-bottom:8px;}
  .to-lbl{font-size:13px;font-weight:600;color:var(--text);}

  /* FILE LIST */
  .fitem{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border-soft);border-radius:var(--r);padding:12px 14px;margin-bottom:10px;transition:all .2s;}
  .fitem:hover{box-shadow:var(--shadow-sm);}
  .fi-ico{font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.05em;color:var(--blue-soft);background:var(--blue-ghost);border-radius:3px;padding:9px 8px;min-width:46px;text-align:center;}
  .fi-nm{font-size:13px;font-weight:600;color:var(--text);}
  .fi-sz{font-size:11px;color:var(--text-muted);margin-top:2px;}
  .fi-rm{width:24px;height:24px;border-radius:50%;border:none;background:var(--beige-light);color:var(--text-muted);font-size:16px;cursor:pointer;transition:all .18s;}
  .fi-rm:hover{background:#EF4444;color:#fff;}

  /* SUCCESS */
  .uok{text-align:center;padding:60px 20px;}
  .uok-ico{font-family:'Playfair Display',serif;font-size:60px;line-height:1;color:#2E7D52;margin-bottom:16px;animation:pop .4s ease-out;}
  @keyframes pop{0%{transform:scale(0);opacity:0;}60%{transform:scale(1.1);}100%{transform:scale(1);opacity:1;}}
  .uok h3{font-family:'Playfair Display',serif;font-size:26px;font-weight:700;color:var(--blue);margin-bottom:10px;}
  .uok p{color:var(--text-muted);font-size:15px;margin-bottom:26px;}

  /* MODAL */
  .modal{position:fixed;inset:0;background:rgba(28,43,69,.6);backdrop-filter:blur(2px);z-index:200;display:none;align-items:center;justify-content:center;padding:20px;}
  .modal.open{display:flex;}
  .modal-c{background:var(--parchment);border-radius:var(--r-xl);max-width:480px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.3);animation:modalIn .3s ease-out;}
  @keyframes modalIn{from{opacity:0;transform:translateY(-20px)scale(.96);}to{opacity:1;transform:translateY(0)scale(1);}}
  .modal-h{padding:28px 32px 0;border-bottom:1px solid var(--beige-mid);}
  .modal-h h3{font-family:'Playfair Display',serif;font-size:23px;font-weight:700;color:var(--blue);margin-bottom:18px;}
  .modal-b{padding:28px 32px;}
  .modal-f{padding:20px 32px;border-top:1px solid var(--beige-mid);display:flex;gap:10px;justify-content:flex-end;}
  .btn-sec{background:var(--beige-mid);color:var(--text);border:none;border-radius:var(--r);padding:10px 20px;font-family:'DM Sans',sans-serif;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;}
  .btn-sec:hover{background:var(--beige-dark);}

  /* TOAST */
  .toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%)translateY(100px);background:var(--text);color:#fff;padding:14px 24px;border-radius:var(--r);font-size:14px;font-weight:500;box-shadow:var(--shadow-md);z-index:300;transition:all .3s;max-width:90%;display:flex;align-items:center;gap:10px;}
  .toast.show{transform:translateX(-50%)translateY(0);}
  .toast.ok{background:#10B981;}

.site-footer{background:var(--blue);color:rgba(255,255,255,.8);padding:24px 28px;text-align:center;font-size:14px;}
.site-footer p{margin:0;}
.site-footer .footer-links{margin-top:10px;display:flex;justify-content:center;gap:18px;flex-wrap:wrap;}
.site-footer a{color:rgba(255,255,255,.75);text-decoration:none;transition:color .2s;}
.site-footer a:hover{color:var(--beige);}

  /* ── USER AVATAR ── */
  .nav-user{position:relative;display:flex;align-items:center;}
  .nav-avatar{width:36px;height:36px;border-radius:50%;background:var(--beige);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;cursor:pointer;border:2px solid var(--beige-mid);transition:all .2s;flex-shrink:0;}
  .nav-avatar:hover{background:var(--parchment);transform:scale(1.05);}
  .user-dropdown{position:absolute;top:50px;right:0;background:var(--parchment);border:1.5px solid var(--border-soft);border-radius:var(--r-lg);box-shadow:var(--shadow-md);min-width:200px;overflow:hidden;z-index:200;display:none;}
  .user-dropdown.open{display:block;}
  .user-dropdown-info{padding:14px 16px;border-bottom:1px solid var(--beige-mid);font-size:13px;color:var(--text-muted);}
  .user-dropdown-info strong{display:block;color:var(--text);font-size:14px;margin-bottom:2px;}
  .ud-item{display:block;width:100%;padding:11px 16px;border:none;background:none;text-align:left;cursor:pointer;font-size:14px;color:var(--text);font-family:'DM Sans',sans-serif;transition:all .18s;}
  .ud-item:hover{background:var(--beige-light);color:var(--blue);}
  .ud-item.danger{color:#DC2626;}
  .ud-item.danger:hover{background:#FEE2E2;}

  @media(max-width:960px){
    .nav-toggle{display:inline-flex;}
    .nav-menu{display:none;position:absolute;top:60px;left:0;right:0;background:var(--blue);flex-direction:column;align-items:flex-start;padding:16px 28px;border-bottom:1px solid rgba(255,255,255,.12);gap:14px;}
    .nav-menu.open{display:flex;}
    .nav-links{flex-direction:column;width:100%;}
    .nav-search{width:100%;margin-right:0;}
    .nav-search input{width:100%;}
    .nb{width:100%;text-align:left;}
    .btn-cta{display:none;}
    /* Menu utilisateur : profil + déconnexion affichés directement dans le menu mobile */
    .nav-user{margin-left:0;width:100%;}
    .nav-avatar{display:none;}
    .user-dropdown{position:static;display:block;width:100%;min-width:0;background:transparent;border:none;border-radius:0;box-shadow:none;border-top:1px solid rgba(255,255,255,.14);margin-top:4px;padding-top:6px;}
    .user-dropdown-info{color:rgba(255,255,255,.7);border-bottom:1px solid rgba(255,255,255,.14);}
    .user-dropdown-info strong{color:#fff;}
    .ud-item{color:#fff;border-radius:8px;}
    .ud-item:hover{background:rgba(255,255,255,.12);color:#fff;}
    .ud-item.danger{color:#FCA5A5;}
    .ud-item.danger:hover{background:rgba(220,38,38,.28);color:#fff;}
  }

  /* ── PROFILE ── */
  .profile-wrap{max-width:660px;margin:48px auto;padding:0 28px;}
  .profile-title{font-family:'Playfair Display',serif;font-size:34px;color:var(--blue);margin-bottom:10px;}
  .profile-sub{color:var(--text-muted);font-size:16px;margin-bottom:36px;}
  .profile-card{background:var(--parchment);border:1.5px solid var(--border-soft);border-radius:var(--r-lg);padding:28px 30px;margin-bottom:20px;box-shadow:var(--shadow-sm);}
  .profile-card h3{font-family:'Playfair Display',serif;font-size:18px;color:var(--blue);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--beige-mid);display:flex;align-items:center;gap:10px;}
  .profile-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--beige-mid);font-size:15px;}
  .profile-row:last-child{border-bottom:none;}
  .profile-lbl{color:var(--text-muted);font-size:14px;min-width:130px;flex-shrink:0;}
  .profile-val{color:var(--text);font-weight:500;}
  .profile-form input{width:100%;padding:11px 14px;border:1.5px solid var(--border-soft);border-radius:var(--r);font-family:'DM Sans',sans-serif;font-size:14px;color:var(--text);background:#fff;outline:none;margin-top:6px;}
  .profile-form input:focus{border-color:var(--blue-soft);box-shadow:0 0 0 3px var(--blue-ghost);}
  .profile-form label{font-size:14px;font-weight:600;color:var(--text);display:block;margin-top:16px;}
  .profile-msg{font-size:13px;padding:10px 14px;border-radius:8px;margin-top:12px;display:none;}
  .profile-msg.ok{background:#D1FAE5;color:#065F46;}
  .profile-msg.err{background:#FEE2E2;color:#991B1B;}


  /* FOOTER */
  footer{background:var(--blue);border-top:3px solid var(--beige-dark);padding:32px 28px;text-align:center;margin-top:64px;}
  .foot-brand{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:14px;}
  .foot-logo{width:40px;height:40px;border-radius:9px;display:block;}
  .foot-name{font-family:'Playfair Display',serif;font-size:22px;font-weight:700;color:#fff;}
  .foot-name em{color:var(--beige-dark);font-style:normal;}
  footer p{color:rgba(255,255,255,.72);font-size:14px;margin:0;line-height:1.7;}
  .foot-links{margin-top:12px;font-size:13px;}
  footer a{color:var(--beige-dark);text-decoration:none;font-weight:600;margin:0 12px;transition:color .2s;}
  footer a:hover{color:var(--beige);text-decoration:underline;}

  /* LIKE/DISLIKE */
  .doc-reactions{display:flex;align-items:center;gap:6px;}
  .btn-react{background:none;border:1px solid var(--border-soft);border-radius:20px;padding:4px 10px;font-size:12px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .2s;color:var(--text-muted);}
  .btn-react:hover{background:var(--beige-mid);}
  .btn-react.liked{background:#FEE2E2;border-color:#F87171;color:#DC2626;}
  .btn-react.disliked{background:#E0E7FF;border-color:#818CF8;color:#4F46E5;}
  
  /* MODAL PREVIEW */
  .preview-modal{position:fixed;inset:0;background:rgba(28,43,69,.75);backdrop-filter:blur(4px);z-index:300;display:none;align-items:center;justify-content:center;padding:20px;}
  .preview-modal.open{display:flex;}
  .preview-box{background:var(--parchment);border-radius:var(--r-xl);width:90%;max-width:900px;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.3);}
  .preview-head{padding:20px 24px;border-bottom:1px solid var(--beige-mid);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;}
  .preview-head h3{font-family:'Playfair Display',serif;font-size:18px;color:var(--blue);}
  .preview-body{flex:1;overflow:hidden;min-height:0;}
  .preview-body iframe{width:100%;height:100%;border:none;min-height:500px;}
  .preview-body img{max-width:100%;max-height:500px;object-fit:contain;display:block;margin:auto;padding:20px;}
  .preview-foot{padding:16px 24px;border-top:1px solid var(--beige-mid);display:flex;gap:10px;justify-content:flex-end;flex-shrink:0;}
  .btn-close-prev{background:none;border:1.5px solid var(--border);border-radius:var(--r);padding:9px 20px;cursor:pointer;font-family:'DM Sans',sans-serif;font-size:14px;font-weight:600;color:var(--text-muted);}
  .btn-close-prev:hover{background:var(--beige-mid);}

  /* ANI */
  .ani{animation:fadeUp .4s ease-out;}
  @keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
  
  /* WARNING BOX */
  .warning-box{background:var(--beige-light);border:1.5px solid var(--beige-mid);border-radius:var(--r);padding:16px;margin-top:12px;}
  .warning-box strong{color:var(--blue);display:block;margin-bottom:6px;}
  .warning-box ul{padding-left:20px;font-size:13px;color:var(--text-muted);line-height:1.6;}
  
  /* ══════════════════════════════════════════════════════════════════════════════════════════ */
  /*  RESPONSIVE                                                                                 */
  /* ══════════════════════════════════════════════════════════════════════════════════════════ */
  
  @media (max-width: 1024px) {
    .nav-in{padding:0 20px;}
    .container{padding:0 20px;}
    .subjects-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));}
    .docs-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));}
  }

  @media (max-width: 768px) {
    nav{position:relative;}
    .nav-in{flex-wrap:wrap;height:auto;padding:12px 16px;}
    .logo{margin-right:auto;}
    .logo-b{width:30px;height:30px;font-size:15px;}
    .logo-t{font-size:16px;}
    .nav-links{width:100%;display:grid;grid-template-columns:repeat(2,1fr);gap:6px;margin-top:12px;}
    .nb{padding:10px 12px;font-size:13px;border-radius:8px;}
    .nb-create{grid-column:1 / -1;}
    .hero{padding:40px 16px;min-height:auto;}
    .hero h1{font-size:32px;}
    .hero p{font-size:15px;}
    .hero-btns{flex-direction:column;width:100%;}
    .hero-btns .btn-primary, .hero-btns .btn-ghost{width:100%;}
    .section{padding:40px 16px;}
    .s-head{flex-direction:column;align-items:flex-start;gap:12px;}
    .subjects-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;}
    .docs-grid{grid-template-columns:1fr;gap:16px;}
    .doc-card{display:flex;flex-direction:row;gap:16px;}
    .doc-thumb{width:120px;height:120px;flex-shrink:0;border-radius:10px;}
    .doc-body{flex:1;}
    .doc-title{font-size:15px;}
    .doc-foot{flex-direction:column;align-items:flex-start;gap:8px;}
    .wizard{flex-direction:column;gap:16px;padding:20px 16px;}
    .wstep{width:100%;}
    .up-box{padding:30px 16px;}
    .type-grid{grid-template-columns:repeat(2,1fr);}
    .exp-filters{flex-direction:column;gap:12px;}
    .exp-filters select{width:100%;}
    .ftabs{overflow-x:auto;-webkit-overflow-scrolling:touch;}
    .ftab{white-space:nowrap;}
    .mn-content{width:95%;max-width:400px;padding:24px 20px;}
    .preview-box{width:95%;max-height:80vh;}
    .preview-body iframe{min-height:300px;}
    footer{padding:40px 16px;}
    .foot-grid{grid-template-columns:1fr;}
  }

  @media (max-width: 480px) {
    .hero h1{font-size:26px;line-height:1.2;}
    .hero p{font-size:14px;}
    .subjects-grid{grid-template-columns:repeat(2,1fr);}
    .subject-card{padding:16px;}
    .sc-name{font-size:14px;}
    .doc-thumb{width:100px;height:100px;}
    .doc-title{font-size:14px;}
    .type-grid{grid-template-columns:1fr;}
    .btn-react{padding:3px 8px;font-size:11px;}
  }

  /* ══════════════════════════════════════════════════════════════════════════ */
  /*  MASTHEAD PARTAGÉ — identique à la page d'accueil (a-propos, login, register) */
  /* ══════════════════════════════════════════════════════════════════════════ */
  .ds-nav{background:var(--blue);position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(242,232,213,.22);}
  .ds-nav-in{max-width:1180px;margin:0 auto;height:62px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;}
  .ds-brand{display:flex;align-items:center;gap:11px;text-decoration:none;}
  .ds-brand img{width:34px;height:34px;display:block;border-radius:7px;flex-shrink:0;}
  .ds-brand-name{font-family:'Playfair Display',serif;font-size:19px;font-weight:700;color:#fff;line-height:1;display:block;}
  .ds-brand-name em{color:var(--beige-dark);font-style:normal;}
  .ds-brand-cote{font-family:'Space Mono',monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.5);display:block;margin-top:4px;}
  .ds-nav-links{display:flex;align-items:center;gap:4px;background:none;border:0;box-shadow:none;position:static;z-index:auto;}
  .ds-nav-links>a{font-size:14.5px;color:rgba(255,255,255,.82);text-decoration:none;padding:9px 14px;font-weight:500;transition:color .18s;}
  .ds-nav-links>a:hover{color:#fff;}
  .ds-nav-links>a[aria-current="page"]{color:var(--beige);}
  .ds-nav-cta{background:var(--beige)!important;color:var(--blue)!important;font-weight:600!important;border-radius:3px;padding:9px 18px!important;transition:background .18s;}
  .ds-nav-cta:hover{background:var(--parchment)!important;}
  @media(max-width:600px){
    .ds-nav-in{height:auto;flex-wrap:wrap;padding:12px 16px;gap:10px;}
    .ds-brand-cote{display:none;}
    .ds-nav-links{flex-wrap:wrap;gap:2px;}
    .ds-nav-links>a{padding:8px 10px;font-size:13.5px;}
  }