/* L’en-tête de toutes les pages (accueil compris) : marque, navigation et menus déroulants,
   connexion, démonstration, menu mobile. Une seule barre, identique partout.
   Balisage : scripts/habillage.mjs (seule plume). Comportement : entete.js.
   Couleurs et polices : charte « Encre & Mouvement » (CHARTE.md), écrites ici en clair pour
   que la barre soit la même quelle que soit la feuille de la page. */

.entete { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.84); backdrop-filter: saturate(1.6) blur(14px); border-bottom: 1px solid transparent; transition: border-color .3s; font-family: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif; }
.entete.defile { border-bottom-color: #E3E8EF; }
.entete .cadre { position: relative; display: flex; align-items: center; gap: 28px; width: min(1260px, calc(100% - 32px)); height: 68px; margin-inline: auto; }
.entete .marque { display: inline-flex; align-items: center; gap: 10px; color: #0A1A2F; text-decoration: none; font-weight: 600; font-size: 20px; letter-spacing: -.03em; }
.entete .marque svg { width: 30px; height: 30px; }
.entete .nav { display: flex; align-items: center; gap: 26px; margin-left: 12px; }
.entete .nav > a { text-decoration: none; font-size: 15px; font-weight: 500; color: #1A2B45; }
.entete .nav > a:hover, .entete .nav > a[aria-current] { color: #3046F5; }
.entete .actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.entete .langue { padding: 6px; font: 500 13px/1 "Plex Mono", ui-monospace, monospace; color: #52627A; text-decoration: none; }
.entete .langue:hover { color: #3046F5; }
.entete .bouton { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 6px; font: 600 15px/1 "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif; text-decoration: none; white-space: nowrap; transition: background .2s, box-shadow .2s; }
.entete .bouton--plein { background: #3046F5; color: #fff; box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 6px 16px -6px rgba(48,70,245,.55); }
.entete .bouton--plein:hover { background: #1F33C9; }
.entete .bouton--plein .fleche { transition: transform .2s; }
.entete .bouton--plein:hover .fleche { transform: translateX(3px); }
.entete .bouton--clair { color: #0A1A2F; box-shadow: 0 0 0 1px #D3DAE5 inset; }
.entete .bouton--clair:hover { box-shadow: 0 0 0 1px #0A1A2F inset; }

/* Menu mobile : un bouton « Menu » qui déplie la liste, sous 960 px. */
.entete .menu-m { display: none; position: relative; }
.entete .menu-m summary { display: inline-flex; align-items: center; height: 40px; padding: 0 14px; border-radius: 6px; box-shadow: 0 0 0 1px #D3DAE5 inset; list-style: none; cursor: pointer; font-size: 15px; font-weight: 600; color: #0A1A2F; }
.entete .menu-m summary::-webkit-details-marker { display: none; }
.entete .menu-m[open] summary { background: #F6F8FB; }
.entete .menu-m nav { position: absolute; right: 0; top: calc(100% + 8px); display: grid; min-width: 250px; padding: 6px; background: #fff; border: 1px solid #E3E8EF; border-radius: 12px; box-shadow: 0 24px 60px -16px rgba(10,26,47,.24); }
.entete .menu-m nav a { display: flex; align-items: center; min-height: 44px; padding: 0 14px; border-radius: 8px; color: #0A1A2F; text-decoration: none; font-size: 15px; font-weight: 500; }
.entete .menu-m nav a:hover { background: #EEF0FF; color: #3046F5; }

/* ── Menus déroulants (Produit, Ressources) : ouverts au survol, au clic et au clavier ── */
.menu { display: flex; align-items: center; align-self: stretch; }
.menu-bouton { display: inline-flex; align-items: center; gap: 5px; min-height: 44px; padding: 0; border: 0; background: none; cursor: pointer; font: inherit; font-size: 15px; font-weight: 500; color: #1A2B45; }
.menu-bouton .chevron { width: 12px; height: 12px; transition: transform .25s; }
.menu:hover .menu-bouton, .menu.ouvert .menu-bouton, .menu-bouton.courant { color: #3046F5; }
.menu:hover .chevron, .menu.ouvert .chevron { transform: rotate(180deg); }

.menu-panneau { position: absolute; z-index: 30; top: calc(100% - 6px); left: 0; right: 0; display: grid; grid-template-columns: repeat(3, 1fr) 280px; gap: 0 36px; padding: 30px 32px 32px; background: #fff; border: 1px solid rgba(10,26,47,.07); border-radius: 16px; box-shadow: 0 2px 4px rgba(10,26,47,.04), 0 24px 60px -16px rgba(10,26,47,.24); text-align: left; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .25s cubic-bezier(.2,.8,.2,1), visibility 0s .25s; }
.menu-panneau--etroit { left: auto; right: auto; width: 340px; grid-template-columns: 1fr; margin-left: -28px; }
/* Le pont : la souris traverse l'espace entre le mot et le panneau sans le refermer. */
.menu-panneau::before { content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px; }
.menu:hover .menu-panneau, .menu.ouvert .menu-panneau { opacity: 1; visibility: visible; transform: none; transition: opacity .2s, transform .25s cubic-bezier(.2,.8,.2,1), visibility 0s; }
.menu.ferme .menu-panneau { opacity: 0; visibility: hidden; }

.menu-titre { margin: 0 0 10px; padding-bottom: 12px; border-bottom: 1px solid #E3E8EF; font-size: 15px; font-weight: 500; color: #0A1A2F; }
.menu-panneau a.menu-lien { display: block; min-height: 0; padding: 9px 0; border-radius: 0; background: none; text-decoration: none; }
.menu-lien b { display: block; font-size: 16px; font-weight: 500; line-height: 1.3; color: #3046F5; }
.menu-lien > span { display: block; margin-top: 2px; font-size: 14px; font-weight: 400; line-height: 1.4; color: #52627A; }
.menu-panneau a.menu-lien:hover { background: none; }
.menu-panneau a.menu-lien:hover b, .menu-panneau a.menu-lien[aria-current] b { color: #1F33C9; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.menu-etat { display: inline-block; margin-top: 6px; padding: 3px 8px; border-radius: 999px; background: #FFF0EB; color: #B6371C; font: 500 11px/1.2 "Plex Mono", ui-monospace, "SFMono-Regular", monospace; font-style: normal; }

.menu-panneau a.menu-encart { display: flex; flex-direction: column; align-items: stretch; gap: 6px; min-height: 0; margin: -30px -32px -32px 0; padding: 30px 28px; background: #F6F8FB; border-left: 1px solid #E3E8EF; border-radius: 0 16px 16px 0; text-decoration: none; }
.menu-encart-sur { font: 500 12px/1.4 "Plex Mono", ui-monospace, "SFMono-Regular", monospace; color: #52627A; text-transform: uppercase; letter-spacing: .06em; }
.menu-encart b { font-size: 19px; font-weight: 500; letter-spacing: -.02em; color: #0A1A2F; }
.menu-encart > span:not([class]) { font-size: 14px; font-weight: 400; line-height: 1.5; color: #52627A; }
.menu-encart-lien { margin-top: auto; padding-top: 16px; font-size: 15px; font-weight: 600; color: #3046F5; }
.menu-encart:hover .menu-encart-lien span { display: inline-block; transform: translateX(3px); transition: transform .2s; }

@media (max-width: 1180px) {
  .menu-panneau { grid-template-columns: repeat(3, 1fr); }
  .menu-panneau a.menu-encart { display: none; }
}
@media (prefers-reduced-motion: reduce) { .menu-panneau { transition: none; transform: none; } }

@media (max-width: 960px) {
  .entete .nav { display: none; }
  .entete .menu-m { display: block; }
}
@media (max-width: 620px) {
  .entete .cadre { gap: 12px; }
  .entete .bouton--clair { display: none; }
  .entete .long { display: none; }
}