/* KHIARI.COM — feuille de style commune (V1) */
:root{
  --bg:#f4f5fb; --surface:#ffffff; --text:#1d1f2e; --muted:#5d6180; --line:#e4e6f0;
  --c-cours:#2f6fdc; --c-outils:#0f8f6f; --c-prive:#7046c9; --c-perso:#c96a1b;
  --hero1:#3b4fd8; --hero2:#7b4fd6; --focus:#3b4fd8; --fs:16px;
  --shadow:0 6px 22px rgba(30,35,80,.08);
}
:root[data-theme="dark"]{
  --bg:#0f1120; --surface:#191c30; --text:#eceefa; --muted:#a6aac6; --line:#2a2e48;
  --c-cours:#6aa8ff; --c-outils:#3fd1a8; --c-prive:#a98bf0; --c-perso:#f2a35e;
  --hero1:#2a3596; --hero2:#5531a3; --focus:#a98bf0; --shadow:0 6px 22px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{font-size:var(--fs)}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;line-height:1.55;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px;width:100%}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:50}

/* En-tête dégradé */
.hero{background:linear-gradient(135deg,var(--hero1),var(--hero2));color:#fff;padding:18px 0 46px;border-radius:0 0 28px 28px}
.hero.small{padding-bottom:18px}
.bar{display:flex;justify-content:space-between;align-items:center;gap:10px}
.logo{font-weight:800;letter-spacing:.03em;text-decoration:none;color:#fff;font-size:1.05rem}
.tools{display:flex;gap:6px}
.tbtn{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.32);border-radius:10px;min-width:40px;height:38px;font:inherit;font-size:.9rem;cursor:pointer}
.tbtn:hover{background:rgba(255,255,255,.26)}
.hero h1{text-align:center;font-size:2.1rem;margin:40px 0 6px;font-weight:700}
.hero.small h1{font-size:1.8rem;margin-top:30px}
.hero p{text-align:center;margin:0 auto;max-width:620px;opacity:.92}
.crumb{display:block;text-align:center;margin-top:10px;font-size:.9rem;opacity:.9}

/* Recherche */
.search{max-width:620px;margin:-28px auto 0;position:relative}
.search input{width:100%;height:56px;border:none;border-radius:16px;background:var(--surface);color:var(--text);font:inherit;padding:0 18px 0 50px;box-shadow:var(--shadow)}
.search svg{position:absolute;left:17px;top:17px;width:22px;height:22px;stroke:var(--muted)}
.results{max-width:620px;margin:8px auto 0}
.res{display:flex;justify-content:space-between;gap:10px;padding:11px 16px;background:var(--surface);border-bottom:1px solid var(--line);text-decoration:none}
.res:first-child{border-radius:14px 14px 0 0}.res:last-child{border-radius:0 0 14px 14px;border-bottom:none}.res:only-child{border-radius:14px}
a.res:hover b{text-decoration:underline}
.res small{color:var(--muted)}
.tag{font-size:.75rem;background:var(--bg);border-radius:999px;padding:2px 10px;white-space:nowrap;align-self:center}

h2{font-size:1.15rem;margin:38px 0 14px;text-align:center}

/* Cartes des espaces */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{--c:var(--c-cours);background:var(--surface);border-radius:20px;padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;border-top:5px solid var(--c);text-decoration:none;transition:transform .15s}
.card:hover{transform:translateY(-3px)}
.card .ico{width:54px;height:54px;border-radius:16px;background:var(--c);display:grid;place-items:center}
.card .ico svg{width:28px;height:28px;stroke:#fff;fill:none;stroke-width:1.8}
.card h3{margin:4px 0 0;font-size:1.1rem}
.card p{margin:0;color:var(--muted);font-size:.92rem;flex:1}
.card .go{margin-top:6px;font-weight:700;color:var(--c)}
.card.outils{--c:var(--c-outils)}.card.prive{--c:var(--c-prive)}.card.perso{--c:var(--c-perso)}
.lock{font-size:.75rem;color:var(--muted)}

/* Diplômes */
.diplomes{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.chip{background:var(--surface);border:2px solid transparent;border-radius:16px;padding:14px;font:inherit;font-weight:700;color:var(--text);cursor:pointer;box-shadow:var(--shadow)}
.chip:hover,.chip[aria-pressed="true"]{border-color:var(--c-cours)}

/* Blocs texte */
.panel{background:var(--surface);border-radius:20px;box-shadow:var(--shadow);padding:24px;margin-top:24px}
.panel h2{text-align:left;margin-top:0}
.panel h3{margin:22px 0 6px;font-size:1.02rem}
.panel p,.panel li{color:var(--text)}
.muted{color:var(--muted)}
.empty{text-align:center;color:var(--muted);padding:18px}
.btn{display:inline-block;background:var(--c-cours);color:#fff;border-radius:12px;padding:10px 18px;text-decoration:none;font-weight:700}
:root[data-theme="dark"] .btn{color:#0f1120}

/* Pied de page */
footer{margin-top:48px;color:var(--muted);font-size:.88rem;text-align:center;padding:20px 16px}
footer a{margin:0 4px}

/* Navigation mobile */
nav.bottom{display:none}
@media (max-width:640px){
  .hero h1{font-size:1.6rem;margin-top:28px}
  .hero.small h1{font-size:1.45rem}
  nav.bottom{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--line);justify-content:space-around;padding:8px 0 calc(8px + env(safe-area-inset-bottom));z-index:10}
  nav.bottom a{text-decoration:none;color:var(--text);font-size:.75rem;display:flex;flex-direction:column;align-items:center;gap:2px;min-width:60px}
  nav.bottom a[aria-current="page"]{color:var(--c-cours);font-weight:700}
  nav.bottom svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8}
}
@media print{nav.bottom,.tools{display:none}}

/* Arborescence à gauche */
.avec-arbre{display:grid;grid-template-columns:360px minmax(0,1fr);gap:20px;align-items:start;margin-top:24px}
.arbre{background:var(--surface);border-radius:16px;box-shadow:var(--shadow);padding:12px 8px;position:sticky;top:12px;max-height:calc(100vh - 24px);overflow:auto}
.arbre-titre{margin:2px 8px 8px;font-weight:700;font-size:.85rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.arbre ul{list-style:none;margin:0;padding:0}
.arbre-ligne{display:flex;align-items:center}
.arbre-fleche{width:22px;height:30px;flex:none;border:none;background:none;color:var(--muted);cursor:pointer;font-size:.8rem;padding:0}
.arbre-fleche:disabled{cursor:default}
.arbre-noeud{flex:1;min-width:0;display:flex;justify-content:space-between;align-items:center;gap:6px;border:none;background:none;color:var(--text);font:inherit;font-size:.92rem;text-align:left;padding:5px 8px;border-radius:8px;cursor:pointer}
.arbre-noeud:hover{background:var(--bg)}
.arbre-noeud.actif{background:var(--c-cours);color:#fff;font-weight:700}
:root[data-theme="dark"] .arbre-noeud.actif{color:#0f1120}
.arbre-nom{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.arbre-n{font-size:.75rem;opacity:.75;flex:none}
.arbre-select{display:none;width:100%;min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font:inherit;padding:0 10px}
.arbre-fil{font-weight:700;color:var(--muted);margin:0 0 10px;min-height:1.2em}
.avec-arbre .search{margin:0 0 12px;max-width:none}
.avec-arbre .search input{height:48px}
.avec-arbre .groupe h2{font-size:1rem;margin:18px 0 8px}
.avec-arbre .groupe:first-child h2{margin-top:0}
.avec-arbre .results{max-width:none}
@media (max-width:800px){
  .avec-arbre{grid-template-columns:1fr;gap:12px}
  .arbre{position:static;max-height:none;padding:10px}
  .arbre-liste{display:none}
  .arbre-select{display:block}
}

/* Page d'aperçu d'un fichier */
.apercu-haut{justify-content:flex-start;display:flex;margin-top:16px}
.apercu-tete{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.btn-dl{font-size:1.05rem;padding:12px 22px}
.apercu-cadre{width:100%;height:75vh;border:1px solid var(--line);border-radius:12px;background:#fff}
.apercu-image{display:block;max-width:100%;height:auto;margin:0 auto;border-radius:12px}
.lienbtn{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:7px 12px;font:inherit;font-size:.9rem;cursor:pointer;text-decoration:none;display:inline-block}
.apercu-boutons{display:flex;gap:10px;flex-wrap:wrap}
.btn-ouvrir{background:var(--c-outils)}

/* Titre de page sous le bandeau (bandeau réduit au logo) */
.page-titre{text-align:center;margin:26px 0 18px}
.page-titre h1{font-size:1.7rem;margin:0 0 4px}
.page-titre p{margin:0;color:var(--muted,inherit);opacity:.85}
.page-titre .crumb{display:inline-block;margin-top:10px}

/* Logo Khiari Formation Conseil (image sur fond noir) — bandeau noir / bleu nuit */
.hero{background:linear-gradient(90deg,#000 0%,#000 42%,#050d22 62%,#0b2147 100%)}
.hero .bar{justify-content:flex-start}
.logo{display:inline-block;line-height:0}
.logo img{display:block;width:auto;height:115px}
.hero.accueil{padding:22px 0 50px}
.hero-intro{display:flex;align-items:center;gap:28px}
.hero-intro .logo img{height:260px}
.hero-intro .intro{flex:1;max-width:560px}
.hero-intro .intro h1{text-align:left;margin:0 0 10px;font-size:2rem;color:#f2c25b;letter-spacing:.01em}
.hero-intro .intro p{text-align:left;margin:0;max-width:none;font-size:1.05rem;line-height:1.6;opacity:.95}
@media (max-width:640px){
  .hero{background:linear-gradient(180deg,#000 0%,#000 50%,#0b2147 100%)}
  .hero .logo img{height:84px}
  .hero-intro{flex-direction:column;gap:8px;text-align:center}
  .hero-intro .logo img{height:170px}
  .hero-intro .intro h1,.hero-intro .intro p{text-align:center}
  .hero-intro .intro h1{font-size:1.5rem}
}

/* ===== Accueil : cartes agrandies (16/10/2026) ===== */
.grid.accueil-cartes{width:min(1240px,calc(100vw - 32px));position:relative;left:50%;transform:translateX(-50%);gap:22px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.accueil-cartes .card{padding:34px 26px 30px;min-height:320px;gap:12px;border-top-width:6px}
.accueil-cartes .card .ico{width:76px;height:76px;border-radius:20px}
.accueil-cartes .card .ico svg{width:40px;height:40px}
.accueil-cartes .card h3{font-size:1.3rem;margin-top:8px;white-space:nowrap}
.accueil-cartes .card p{font-size:1.02rem;line-height:1.5}
.accueil-cartes .card .go{font-size:1.08rem}

/* ===== Mon espace Cours (17/10/2026) ===== */
.co-page{width:min(1400px,calc(100vw - 32px));position:relative;left:50%;transform:translateX(-50%);margin-top:18px}
.co-corps{display:grid;grid-template-columns:360px minmax(0,1fr);gap:22px;align-items:start}
.co-arbre{background:var(--surface);border-radius:18px;box-shadow:var(--shadow);padding:14px;position:sticky;top:12px;max-height:calc(100vh - 24px);overflow-y:auto}
.co-t{margin:0 0 8px 8px;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.co-n{display:flex;align-items:flex-start;gap:6px;width:100%;text-align:left;background:none;border:none;color:var(--text);font:inherit;padding:8px 10px;border-radius:10px;cursor:pointer}
.co-n:hover{background:var(--bg)}
.co-n.sel{background:var(--c-cours);color:#fff}
.co-f{width:14px;flex:none;color:var(--muted);font-size:.8rem;margin-top:3px}.co-n.sel .co-f{color:#fff}
.co-lab{flex:1;min-width:0}.co-lab b{display:block;font-size:.98rem}
.co-lab small{display:block;color:var(--muted);font-size:.8rem;line-height:1.3}
.co-n.sel .co-lab small,.co-n.sel .co-nb{color:#dfe8ff}
.co-nb{font-size:.78rem;color:var(--muted);margin-top:2px}
.co-ch{padding-left:26px}.co-ch .co-n{padding:6px 10px;font-size:.92rem}
.co-fil{margin:0 0 12px;font-size:.92rem;color:var(--muted)}
.co-fil a{color:var(--c-cours);text-decoration:none}.co-fil a:hover{text-decoration:underline}
.co-outils{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.co-outils input{flex:1;min-width:220px;height:46px;border:none;border-radius:12px;background:var(--surface);color:var(--text);box-shadow:var(--shadow);padding:0 16px;font:inherit}
.co-puces{display:flex;gap:6px;flex-wrap:wrap}
.co-puce{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:7px 14px;font:inherit;font-size:.88rem;cursor:pointer}
.co-puce:hover{border-color:var(--c-cours)}.co-puce.on{background:var(--text);color:var(--surface);border-color:var(--text)}
.co-cartes{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.co-carte{display:flex;flex-direction:column;background:var(--surface);border-radius:18px;padding:20px;box-shadow:var(--shadow);border-top:5px solid var(--c-cours);text-decoration:none;color:var(--text);transition:transform .15s}
.co-carte:hover{transform:translateY(-3px)}
.co-code{align-self:flex-start;background:#e8effd;color:var(--c-cours);font-weight:800;border-radius:10px;padding:4px 10px;font-size:1.05rem;margin-bottom:8px}
.co-carte h3{margin:0 0 6px;font-size:1.06rem;line-height:1.35}
.co-carte p{margin:0;color:var(--muted);font-size:.9rem;flex:1}
.co-bas{display:flex;justify-content:space-between;margin-top:14px;font-size:.88rem}.co-bas b{color:var(--c-cours)}
.co-nouv{background:#fdecc8;color:#8a5a00;font-size:.72rem;font-weight:700;border-radius:999px;padding:2px 8px;margin-left:8px;vertical-align:middle;white-space:nowrap}
.co-grp{font-size:1rem;margin:18px 0 8px;color:var(--muted);text-align:left}
.co-res{display:flex;align-items:center;gap:14px;background:var(--surface);border-radius:14px;padding:12px 16px;margin-bottom:8px;box-shadow:0 3px 10px rgba(30,35,80,.05);text-decoration:none;color:var(--text)}
.co-res:hover{outline:2px solid #cfdcf8}.co-res:hover b{text-decoration:underline}
.co-ico{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;font-size:.68rem;font-weight:800;color:#fff;flex:none;background:#6b7280}
.co-i-html{background:#e4572e}.co-i-pdf{background:#c0392b}.co-i-xlsx{background:#1e7d45}.co-i-docx{background:#2b579a}.co-i-pptx{background:#c4511f}.co-i-zip{background:#8a6d3b}.co-i-img{background:#7b4fd6}.co-i-lien{background:#4b5563}
.co-txt{flex:1;min-width:0}.co-txt b{display:block}.co-txt small{color:var(--muted)}
:root[data-theme="dark"] .co-code{background:#1d2a4a}:root[data-theme="dark"] .co-nouv{background:#4a3a12;color:#ffd88a}
@media (max-width:860px){.co-corps{grid-template-columns:1fr}.co-arbre{position:static;max-height:none}}

/* Mon espace Outils : même page, couleur verte */
.co-page.esp-outils{--c-cours:var(--c-outils)}
.esp-outils .co-code{background:#e2f4ee}
.esp-outils .co-res:hover{outline-color:#bfe6d8}

/* MODE TEST (provisoire) */
.bandeau-test{background:#f59e0b;color:#1d1f2e;text-align:center;font-weight:700;font-size:.88rem;padding:7px 12px;position:relative;z-index:50}
.admin-body .bandeau-test{position:fixed;top:0;left:0;right:0}
.admin-body .admin-menu,.admin-body .admin-zone{padding-top:34px}
.voir-comme{display:flex;justify-content:center;align-items:center;gap:10px;margin:10px 0 0;font-size:.95rem}
.voir-comme label{font-weight:700;color:#b45309}
.voir-comme select{height:38px;border:2px solid #f59e0b;border-radius:10px;padding:0 10px;font:inherit;background:var(--surface);color:var(--text)}

/* Recherche de l'accueil (17/10/2026) */
.res.res-recherche{align-items:center;gap:12px}
.res-recherche .co-ico{width:38px;height:38px;font-size:.62rem}
.rr-txt{flex:1;min-width:0}.rr-txt b{display:block}.rr-txt small{display:block}
.res.rr-plus{justify-content:center;color:var(--c-cours);font-weight:600;font-size:.92rem}

/* Boutons Accueil / Nous contacter du bandeau (17/10/2026) */
.haut-nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.haut-nav .hn{color:#fff;text-decoration:none;font-size:.92rem;font-weight:600;padding:8px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.08);white-space:nowrap}
.haut-nav .hn:hover{background:rgba(255,255,255,.18);border-color:#e9c46a;color:#e9c46a}
.hero.accueil{position:relative}
.nav-accueil{position:absolute;top:16px;right:20px;z-index:5}
@media (max-width:600px){.haut-nav .hn{padding:6px 10px;font-size:.85rem}.nav-accueil{top:10px;right:10px}}

/* ===== Fenêtre « Nous contacter » (17/10/2026) ===== */
.kc-fond{position:fixed;inset:0;z-index:1000;background:rgba(8,12,30,.6);display:flex;align-items:center;justify-content:center;padding:16px}
.kc-boite{position:relative;width:min(620px,100%);max-height:calc(100vh - 32px);overflow-y:auto;background:var(--surface);color:var(--text);border-radius:20px;padding:26px 26px 20px;box-shadow:0 20px 60px rgba(0,0,0,.35);border-top:6px solid #e9c46a}
.kc-boite h2{margin:0 0 4px;font-size:1.4rem}
.kc-sous{margin:0 0 14px;color:var(--muted);font-size:.92rem}
.kc-x{position:absolute;top:14px;right:14px;width:38px;height:38px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:10px;cursor:pointer;font-size:1rem}
.kc-deux{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.kc-champ{margin-bottom:12px}
.kc-champ label{display:block;font-weight:700;font-size:.9rem;margin-bottom:5px}
.kc-champ input,.kc-champ select,.kc-champ textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font:inherit;padding:9px 12px}
.kc-champ textarea{resize:vertical;min-height:120px;line-height:1.5}
.kc-champ input:focus,.kc-champ select:focus,.kc-champ textarea:focus{outline:2px solid #e9c46a;border-color:#e9c46a}
.kc-piege{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.kc-etat{margin:4px 0 0;font-size:.92rem;min-height:1.2em}
.kc-etat.kc-ok{color:#0b5e43;background:#e3f6ee;padding:10px 12px;border-radius:10px}
.kc-etat.kc-err{color:#8a1c1c;background:#fde8e8;padding:10px 12px;border-radius:10px}
.kc-nav{display:flex;justify-content:flex-end;gap:10px;margin-top:14px}
.kc-btn{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:10px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer}
.kc-envoyer{background:#0f1733;color:#e9c46a;border-color:#0f1733}
.kc-envoyer:disabled{opacity:.6}
@media (max-width:560px){.kc-deux{grid-template-columns:1fr}}
/* Page Messages de l'Administration */
.msg{padding:0;margin:10px 0 0}
.msg summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;padding:14px 18px}
.msg summary::-webkit-details-marker{display:none}
.msg-pt{width:10px;height:10px;border-radius:50%;background:transparent;flex:none}
.msg-nonlu .msg-pt{background:#c96a1b}.msg-nonlu .msg-t b{font-weight:800}
.msg-t b{display:block;font-weight:600}.msg-t small{color:var(--muted)}
.msg-corps{padding:0 18px 16px 40px}
.msg-de{margin:0 0 8px;color:var(--muted);font-size:.92rem}
.msg-texte{background:var(--bg);border-radius:12px;padding:12px 14px;line-height:1.6}
.msg-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.msg-actions form{margin:0}

/* Accueil : logo à gauche, texte réparti sur le reste de la largeur */
.hero-intro{flex-direction:row;align-items:center;gap:44px;text-align:left}
.hero-intro .logo{flex:0 0 auto}
.hero-intro .logo img{height:200px;width:auto}
.hero-intro .intro{flex:1;max-width:none}
.hero-intro .intro h1,.hero-intro .intro p{text-align:left}
@media (max-width:760px){
  .hero-intro{flex-direction:column;gap:8px;text-align:center}
  .hero-intro .logo img{height:150px}
  .hero-intro .intro h1,.hero-intro .intro p{text-align:center}
}
/* Accueil : bandeau sur toute la largeur (logo collé à gauche) */
.hero-intro.wrap{max-width:none;padding:0 56px}
@media (max-width:760px){.hero-intro.wrap{padding:0 16px}}

/* Filigrane : logo très léger, centré et fixe, derrière le contenu de toutes les pages */
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:url("logo-kfc-transparent2.png?v=1") center/min(60vw,620px) auto no-repeat;opacity:.05}
@media print{body::before{display:none}}
/* Accueil : logo agrandi au maximum dans le bandeau */
@media (min-width:761px){
  .hero.accueil{padding:6px 0 38px}
  .hero-intro .logo img{height:270px}
  .hero-intro{gap:36px}
}
/* Accueil : textes réglables (Paramètres) */
.hero-intro .intro p + p{margin-top:.6em}
.hero-intro .intro ul,.hero-intro .intro ol{margin:.5em 0;padding-left:1.4em;text-align:left;font-size:1.05rem;line-height:1.6}
.hero-intro .intro a{color:#f2c25b}
.card .card-p{margin:0;color:var(--muted);font-size:.92rem;flex:1}
.accueil-cartes .card .card-p{font-size:1.02rem;line-height:1.5}
.card .card-p ul,.card .card-p ol{margin:.3em 0;padding-left:1.3em;text-align:left}
/* Boutons d'affichage du bandeau : A− / A+ / clair-sombre (27/10/2026) */
.hn-reglages{display:inline-flex;gap:6px}
.haut-nav button.hn{font-family:inherit;cursor:pointer;line-height:1.2;min-width:42px}
.haut-nav .hn-b{padding:8px 11px}
:root[data-theme="dark"] .th-sombre,:root:not([data-theme="dark"]) .th-clair{display:none}
@media (max-width:600px){.haut-nav .hn-b{padding:6px 9px;min-width:36px}}
/* Nuances d'affichage (curseur « ⚙ Affichage ») */
:root[data-nuance="doux"]{--bg:#f3eee3;--surface:#fbf8f1;--text:#2a251e;--muted:#6a6152;--line:#e4d9c6;--shadow:0 6px 22px rgba(80,60,20,.08)}
:root[data-nuance="gris"]{--bg:#dcdfe7;--surface:#eceef3;--text:#191c28;--muted:#4f5469;--line:#c8ccd8;--shadow:0 6px 22px rgba(20,25,50,.10)}
:root[data-nuance="noir"]{--bg:#000;--surface:#101114;--text:#f3f3f6;--muted:#a5a8b8;--line:#25262d;--hero1:#151a4a;--hero2:#2b1a55;--shadow:0 6px 22px rgba(0,0,0,.6)}
/* Panneau Affichage */
.aff-ancre{position:relative}
.aff-panneau{position:absolute;right:0;top:calc(100% + 8px);z-index:60;width:300px;max-width:calc(100vw - 24px);background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 34px rgba(0,0,0,.25);padding:14px 16px;text-align:left;font-size:.95rem}
.aff-titre{margin:4px 0 8px;font-weight:700;font-size:.9rem}
.aff-ligne{display:flex;align-items:center;gap:10px}.aff-ico{font-size:1.1rem}
.aff-curseur{flex:1;accent-color:var(--focus);height:28px;cursor:pointer}
.aff-crans{display:flex;justify-content:space-between;gap:2px;margin:2px 0 6px}
.aff-cran{background:none;border:1px solid transparent;border-radius:8px;color:var(--muted);font:inherit;font-size:.78rem;padding:3px 5px;cursor:pointer}
.aff-cran.on{color:var(--text);font-weight:700;border-color:var(--line)}
.aff-auto{margin:0 0 12px;font-size:.8rem;color:var(--muted)}
.aff-taille{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.aff-btn{min-width:46px;height:36px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font:inherit;font-weight:700;cursor:pointer}
.aff-btn:disabled{opacity:.4;cursor:default}.aff-val{min-width:56px;text-align:center;font-weight:600}
.aff-raz{width:100%;background:none;border:none;border-top:1px solid var(--line);color:var(--muted);font:inherit;font-size:.82rem;padding:10px 0 2px;text-align:left;cursor:pointer}
.aff-raz:hover{color:var(--text)}
.aff-panneau p{text-align:left}.aff-panneau .aff-titre{color:var(--text)}
.arbre-fil a{text-decoration:underline}.co-grp-lien{cursor:pointer}.co-grp-lien:hover{text-decoration:underline}

/* Chapitres : pastilles numérotées violettes (Cours, Outils, espace professeur) */
:root{--c-chap:#7046c9}
:root[data-theme="dark"]{--c-chap:#a98bf0}
.co-num,.arbre-num{flex:none;width:22px;height:22px;border-radius:50%;background:var(--c-chap);color:#fff;font-size:.75rem;font-weight:700;display:inline-flex;align-items:center;justify-content:center;line-height:1}
:root[data-theme="dark"] .co-num,:root[data-theme="dark"] .arbre-num{color:#14102a}
.co-ch .co-n{align-items:flex-start;gap:8px}.co-ch .co-lab b{font-weight:500;white-space:normal}.co-ch .co-n .co-num{margin-top:1px}
.co-ch .co-n.sel .co-num,.arbre-noeud.actif .arbre-num{background:#fff;color:var(--c-chap)}
.arbre-noeud.chap{justify-content:flex-start;align-items:flex-start;gap:8px}
.arbre-noeud.chap .arbre-nom{white-space:normal;flex:1;line-height:1.3;padding-top:2px}
.arbre-noeud.chap .arbre-n{padding-top:3px}

/* Lecture en ligne uniquement (28/10/2026) */
.btn-lecture{display:inline-flex;align-items:center;gap:6px;background:var(--bg);color:var(--muted);border:1px solid var(--line);border-radius:12px;padding:9px 14px;font-weight:600;font-size:.92rem;white-space:nowrap}
.apercu-ls{margin:10px 0 0}