/**
 * Header OFNAC — topbar + nav + sous-menus + volets + menu mobile.
 * Porté depuis la maquette ofnac-accueil.html.
 */

/* ============================================================
   Topbar
   ============================================================ */
.topbar{position:sticky;top:0;z-index:61;background:var(--teal-900);color:#DCEDED;font-size:.8rem}
.topbar__in{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:38px}
.topbar__l,.topbar__r{display:flex;align-items:center;gap:1.1rem}
.tline{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--ff-mono);letter-spacing:.02em}
.tline b{color:#fff;font-weight:500}
.tline svg{width:14px;height:14px;opacity:.75}
.socials{display:flex;gap:.35rem}
.socials a{
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.09);transition:background .2s,transform .2s;
}
.socials a:hover{background:var(--teal-600);transform:translateY(-2px)}
.socials svg{width:13px;height:13px;fill:#fff}
/* Liste de <li><a>, pas de <button> : c'est la sortie native de
   pll_the_languages() (Polylang), chaque lien porte déjà lang/hreflang. */
.langs{display:flex;align-items:center;gap:.35rem;list-style:none}
.langs a{
  display:flex;align-items:center;padding:.2rem .4rem;border-radius:5px;
  opacity:.6;transition:.2s;
}
.langs a img{display:block;border-radius:2px}
.langs a:hover{opacity:1}
.langs a[aria-current="true"]{background:rgba(255,255,255,.16);opacity:1}
.a11y{display:flex;align-items:center;gap:.3rem;border-left:1px solid rgba(255,255,255,.16);padding-left:1rem}
.a11y button{font-size:.72rem;opacity:.7;padding:.1rem .3rem;font-family:var(--ff-mono)}
.a11y button:hover{opacity:1}
.topbar__l .tline:first-child{background:#fff;color:var(--teal-900);padding:.3rem .8rem;border-radius:100px}
.topbar__l .tline:first-child svg{opacity:1}
.topbar__l .tline:first-child b{color:var(--teal-900);font-weight:600}
a.tline{transition:color .2s}
a.tline:hover{color:#fff}
/* Le badge N° Vert reste teal sur blanc au survol : jamais de blanc sur blanc. */
.topbar__l .tline:first-child:hover{color:var(--teal-900)}
.topbar__l .tline:first-child:hover b{color:var(--teal-900)}
.tnav{display:flex;gap:1.2rem;font-weight:500;font-size:.79rem;border-right:1px solid rgba(255,255,255,.16);padding-right:1.1rem}
.tnav a{transition:color .2s}
.tnav a:hover{color:#fff}

/* ============================================================
   Header
   ============================================================ */
.hdr{
  position:sticky;top:42px;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  transition:box-shadow .3s;
}
.hdr.is-stuck{box-shadow:0 6px 30px -18px rgba(0,0,0,.4)}
.hdr__in{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:90px;flex-wrap:nowrap}

.logo{display:flex;align-items:center;flex:none;padding-block:.5rem}
.logo img{width:auto;height:78px;display:block;transition:transform .35s var(--ease)}
.logo:hover img{transform:scale(1.03)}

.nav__link.is-active{color:var(--teal-600);font-weight:600}

.drop__item{position:relative}
.drop__item>a{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.drop__item>a svg{width:10px;height:10px;opacity:.45;flex:none}
.flyout{
  position:absolute;left:100%;top:-.5rem;min-width:190px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  box-shadow:0 24px 50px -22px rgba(14,30,30,.32);padding:.5rem;
  opacity:0;visibility:hidden;transform:translateX(-8px);transition:.22s var(--ease);
}
.drop__item:hover>.flyout,.drop__item:focus-within>.flyout{opacity:1;visibility:visible;transform:none}
.drop__item:hover>a,.drop__item:focus-within>a{background:var(--bord-600);color:#fff}
.drop__item:hover>a svg,.drop__item:focus-within>a svg{opacity:1}
.flyout a{display:block;padding:.55rem .75rem;border-radius:8px;font-size:.845rem;color:var(--ink-70)}
.flyout a:hover{background:var(--teal-050);color:var(--teal-800)}

.nav{display:flex;align-items:center;gap:0;margin-left:auto;flex-wrap:nowrap}
.nav__item{position:relative;flex:none}
.nav__link{
  display:flex;align-items:center;gap:.28rem;white-space:nowrap;
  padding:.6rem .7rem;border-radius:8px;font-size:.92rem;font-weight:500;
  color:var(--teal-600);transition:color .2s,background .2s;
}
.nav__link:hover{color:var(--teal-800);background:var(--teal-050)}
.nav__link svg{width:11px;height:11px;opacity:.5;transition:transform .25s}
.nav__item:hover .nav__link svg,.nav__item:focus-within .nav__link svg{transform:rotate(180deg)}
.drop{
  position:absolute;top:calc(100% + 8px);left:0;min-width:250px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  box-shadow:0 24px 50px -22px rgba(14,30,30,.32);
  padding:.5rem;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.22s var(--ease);
}
.nav__item:hover .drop,.nav__item:focus-within .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:block;padding:.6rem .75rem;border-radius:8px;font-size:.875rem;color:var(--ink-70)}
.drop a:hover{background:var(--teal-050);color:var(--teal-800)}
.hdr__cta{display:flex;align-items:center;gap:.6rem;flex:none;margin-left:.5rem}
.hdr__cta .btn{padding:.7rem 1.1rem;font-size:.86rem;white-space:nowrap}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line)}
.burger span{display:block;width:18px;height:2px;background:var(--ink);margin:3.5px auto;border-radius:2px;transition:.25s}
.burger.is-open span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

.mnav{display:none;border-top:1px solid var(--line);background:#fff;padding:1rem var(--gut) 1.5rem}
.mnav.is-open{display:block}
.mnav a{display:block;padding:.75rem 0;border-bottom:1px solid var(--line);font-weight:500}

/* Accordéon des sous-menus (CDC §5.3 : max-height + rotation du chevron) */
.mnav__item{border-bottom:1px solid var(--line)}
.mnav__item .mnav__panel{border-bottom:0}
.mnav__toggle{
  display:flex;align-items:center;justify-content:space-between;gap:.5rem;
  width:100%;padding:.75rem 0;font-weight:500;font-size:1rem;
  text-align:left;background:none;border:0;color:var(--ink);font-family:inherit;
}
.mnav__toggle svg{width:11px;height:11px;opacity:.5;flex:none;transition:transform .25s var(--ease)}
.mnav__toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
.mnav__panel{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);padding-left:1rem}
.mnav__panel.is-open{max-height:640px}
.mnav__panel a{font-weight:400;font-size:.92rem;color:var(--ink-70)}
.mnav__panel .mnav__item:last-child,.mnav__panel a:last-child{border-bottom:0}

@media(max-width:1180px){
  .nav,.hdr__cta .btn{display:none}
  .burger{display:block}
  .hdr__in{height:68px;min-height:72px}
  .tnav{display:none}
  .topbar__l .tline:not(:first-child),.a11y{display:none}
}
@media(max-width:680px){
  .topbar__r .langs{display:none}
  .slide__acts .btn{flex:1;justify-content:center}
}