/* ===== Menu principal (à ajouter à la fin de faux-diplomes.css) ===== */
.site-header{display:block;padding:8px 20px}
.site-header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px}
.menu-principal>ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:4px}
.menu-principal a,.menu-principal summary{display:block;padding:8px 12px;border-radius:8px;color:#e2e8f0;font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;transition:background .2s,color .2s}
.menu-principal a:hover,.menu-principal summary:hover{background:rgba(255,255,255,.08);color:#fbbf24}
.menu-principal a[aria-current="page"],.menu-principal summary.actif{color:#fbbf24}
.menu-principal summary{list-style:none}
.menu-principal summary::-webkit-details-marker{display:none}
.menu-principal summary::after{content:"";display:inline-block;margin-left:6px;width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-3px) rotate(45deg);transition:transform .2s}
.menu-principal details[open] summary::after{transform:translateY(0) rotate(225deg)}
.menu-sous{position:relative}
.menu-sous-liste{list-style:none;margin:0;padding:6px;position:absolute;top:calc(100% + 6px);left:0;z-index:50;min-width:220px;background:#fff;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.18)}
.menu-sous-liste a{color:#1a1a2e;font-weight:500;padding:8px 12px}
.menu-sous-liste a:hover{background:#fef3c7;color:#1a1a2e}
.menu-sous-liste a[aria-current="page"]{color:#d97706}
.menu-toggle{display:none;align-items:center;gap:8px;padding:8px 12px;background:none;border:1px solid rgba(255,255,255,.25);border-radius:8px;color:#fff;font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.menu-toggle-barres,.menu-toggle-barres::before,.menu-toggle-barres::after{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle-barres::before,.menu-toggle-barres::after{content:"";position:absolute;left:0}
.menu-toggle-barres::before{top:-6px}
.menu-toggle-barres::after{top:6px}

.menu-sous-articles{min-width:320px;max-width:380px;left:auto;right:0}
.menu-sous-articles a{white-space:normal;line-height:1.35}
.menu-sous-tous{margin-top:4px;padding-top:4px;border-top:1px solid #f1f5f9}
.menu-sous-tous a{font-weight:700;color:#d97706}
@media(max-width:860px){
  .menu-sous-articles{min-width:0;max-width:none}
  .menu-sous-tous{border-top-color:rgba(255,255,255,.1)}
  .menu-sous-tous a{color:#fbbf24}
}
@media(max-width:860px){
  .site-header{position:relative;z-index:1000}
  .site-header .logo img{height:42px}
  .menu-toggle{display:flex}
  /* Panneau qui s'ouvre par-dessus la page, sans pousser la bannière */
  .menu-principal{display:none;position:absolute;top:100%;left:0;right:0;padding:8px 16px 14px;background:#1a1a2e;border-top:1px solid rgba(255,255,255,.08);box-shadow:0 14px 30px rgba(0,0,0,.35);max-height:calc(100vh - 70px);overflow-y:auto}
  .menu-principal.ouvert{display:block;animation:menuApparition .18s ease-out}
  @keyframes menuApparition{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
  /* L'icône hamburger devient une croix quand le menu est ouvert */
  .menu-toggle-barres{transition:background .2s}
  .menu-toggle-barres::before,.menu-toggle-barres::after{transition:transform .2s,top .2s}
  .menu-toggle[aria-expanded="true"] .menu-toggle-barres{background:transparent}
  .menu-toggle[aria-expanded="true"] .menu-toggle-barres::before{top:0;transform:rotate(45deg)}
  .menu-toggle[aria-expanded="true"] .menu-toggle-barres::after{top:0;transform:rotate(-45deg)}
  .menu-principal>ul{flex-direction:column;align-items:stretch;gap:2px}
  .menu-principal a,.menu-principal summary{padding:11px 12px}
  .menu-sous-liste{position:static;min-width:0;margin:2px 0 6px 12px;padding:0;background:none;box-shadow:none;border-left:2px solid rgba(251,191,36,.4);border-radius:0}
  .menu-sous-liste a{color:#cbd5e1}
  .menu-sous-liste a:hover{background:rgba(255,255,255,.08);color:#fbbf24}
  .menu-sous-liste a[aria-current="page"]{color:#fbbf24}
}