/* En-tête V3.6 pour les pages Astro. Extrait de v3*.css.
   Variables préfixées --h36-* : landing-premium.css occupe deja --ink,
   --teal, --line et --shadow au niveau :root. */
.site-header, .mobile-menu, .skip-link {
  --h36-ink: #071b2d;
  --h36-line: rgba(7, 27, 45, .12);
  --h36-mist: #edf6f5;
  --h36-navy: #041522;
  --h36-shadow: 0 24px 80px rgba(5, 27, 43, .14);
  --h36-teal: #0d8983;
  --h36-teal-dark: #086b6b;
}

.skip-link { position: fixed; z-index: 1000; top: 10px; left: 10px; padding: 12px 16px; color: #fff; background: var(--h36-navy); border-radius: 10px; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
/* Dual brand header */
.site-header { position: sticky; z-index: 200; top: 0; background: #fff; box-shadow: 0 1px 0 rgba(7, 27, 45, .1); transition: box-shadow .2s ease; }
.site-header.is-scrolled { box-shadow: 0 14px 44px rgba(7, 27, 45, .12); }
.brand-row { border-bottom: 1px solid rgba(7, 27, 45, .08); }
.brand-row-twinme { border-bottom: 0; background: #f8fbfb; }
.header-inner { width: min(calc(100% - 48px), 1440px); min-height: 63px; display: flex; align-items: center; gap: 28px; margin-inline: auto; }
.twinme-inner { min-height: 52px; }
.brand-link { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-link-biotwin img { width: 128px; }
.brand-link-twinme img { width: 103px; max-height: 31px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; gap: clamp(15px, 1.55vw, 26px); }
.desktop-nav a, .utility-nav > a { position: relative; color: #213d50; font-size: 12px; font-weight: 720; text-decoration: none; white-space: nowrap; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--h36-teal); transition: right .2s ease; }
.desktop-nav a:hover::after { right: 0; }
.nav-highlight { color: var(--h36-teal-dark) !important; }
.biotwin-nav { margin-left: auto; }
.twinme-nav { margin-left: auto; }
.utility-nav { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.utility-primary { padding: 8px 14px; border-radius: 999px; color: #fff !important; background: var(--h36-teal); }
.language-picker { position: relative; }
.language-picker > button { min-height: 38px; padding: 7px 10px; border: 1px solid var(--h36-line); border-radius: 10px; color: var(--h36-ink); background: #fff; font-size: 12px; font-weight: 800; cursor: pointer; }
.language-menu { position: absolute; top: calc(100% + 8px); right: 0; min-width: 150px; padding: 7px; border: 1px solid var(--h36-line); border-radius: 13px; background: #fff; box-shadow: var(--h36-shadow); }
.language-menu a { display: flex; justify-content: space-between; gap: 14px; padding: 9px 10px; border-radius: 8px; font-size: 12px; font-weight: 800; text-decoration: none; }
.language-menu a:hover { background: var(--h36-mist); }
.language-menu small { color: #718290; font-weight: 500; }
.menu-toggle { display: none; width: 46px; height: 44px; margin-left: auto; padding: 11px; border: 1px solid var(--h36-line); border-radius: 12px; background: #fff; cursor: pointer; }
.menu-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 4px 0; border-radius: 5px; background: var(--h36-ink); transition: transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.mobile-menu { position: fixed; z-index: 190; inset: 116px 0 0; overflow-y: auto; padding: 30px max(24px, calc((100vw - 1000px) / 2)); background: #fff; }
.mobile-menu[hidden] { display: none; }
.mobile-menu-section { display: grid; gap: 2px; padding: 0 0 28px; }
.mobile-menu-section + .mobile-menu-section { padding-top: 28px; border-top: 1px solid var(--h36-line); }
.mobile-menu-section strong { margin-bottom: 8px; color: var(--h36-teal-dark); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.mobile-menu-section a { min-height: 46px; display: flex; align-items: center; border-bottom: 1px solid rgba(7, 27, 45, .06); color: var(--h36-ink); font-size: 16px; font-weight: 700; text-decoration: none; }
@media (max-width: 1240px) {
  
  .desktop-nav { gap: 13px; }
  
  .desktop-nav a, .utility-nav > a { font-size: 11px; }
  
  .brand-link-biotwin img { width: 115px; }
  
  .header-inner { gap: 18px; }
}
@media (max-width: 1080px) {
  
  .desktop-nav { display: none; }
  
  .menu-toggle { display: block; }
  
  .utility-nav { margin-left: auto; }
}
@media (max-width: 700px) {
  
  .header-inner { width: calc(100% - 28px); }
  
  .brand-row-biotwin .header-inner { min-height: 60px; }
  
  .twinme-inner { min-height: 50px; }
  
  .brand-link-biotwin img { width: 112px; }
  
  .brand-link-twinme img { width: 92px; }
  
  .utility-nav .language-picker, .utility-nav > a:not(.utility-primary) { display: none; }
  
  .utility-primary { font-size: 11px !important; }
  
  .mobile-menu { inset-block-start: 110px; }
}
@media (max-width: 480px) {
  
  .utility-primary { padding: 7px 10px; }
}
@media print {
  
  .site-header, .entry-overlay, .scroll-cue, .final-cta, .site-footer { display: none !important; }
}
.brand-link-twinme {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  text-align: right;
}
.brand-link-twinme span {
  color: rgba(7, 25, 39, .58);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.twinme-inner {
  justify-content: flex-end;
}
.twinme-nav {
  margin-left: auto;
}
@media (max-width: 900px) {
  

  .brand-link-twinme span {
    display: none;
  }
}
/* ---------- EN-TETE ---------- */
.brand-row-biotwin .biotwin-nav { margin-left: 16px; margin-right: auto; }
.twinme-inner { justify-content: flex-end; gap: 18px; padding-right: clamp(16px, 6vw, 132px); }
.brand-link-twinme {
  order: -1;
  margin-left: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  text-align: left;
}
.brand-link-twinme img { width: 132px; max-height: 36px; }
.brand-link-twinme span { display: block; width: 132px; margin: 0; font-size: 8.5px; letter-spacing: .015em; line-height: 1.1; text-align: center; white-space: nowrap; }
.twinme-nav { margin-left: 0; }
.utility-nav { margin-left: 0; }
/* 2) Contraste limite du sous-texte "Propulse par BioTwin" (mesure: 4.35:1 a 8.5px, sous le
   seuil AA pour du texte de cette taille). Opacite relevee sans changer la teinte. */
.brand-link-twinme span { color: rgba(7, 25, 39, .72); }
@media (max-width: 900px) {
  
  .brand-link-twinme span { display: none; }
}