/* AVIAH — feuille de style unique. Variables reprises de la charte graphique
   du 9 octobre 2026 (§7). Le logo garde ses couleurs natives ; ces variables
   ne s'appliquent qu'à l'interface. */
:root {
  --aviah-blue: #00345C;
  --aviah-blue-hover: #002846;
  --aviah-gold: #F8A700;
  --aviah-gold-hover: #E59800;
  --aviah-gold-text: #8A5700;
  --aviah-white: #FFFFFF;
  --aviah-surface: #F4F7FA;
  --aviah-text: #1F2933;
  --aviah-muted: #526477;
  --aviah-border: #D9E2EA;
  --aviah-input-border: #64788B;
  --aviah-success: #1E6B45;
  --aviah-error: #A12828;
  --font-title: Georgia, "Times New Roman", serif;
  --font-body: Arial, Helvetica, sans-serif;
  --container: 1200px;
  --radius-card: 12px;
  --radius-control: 8px;
  --shadow-card: 0 8px 24px rgba(0,52,92,.08);
  --gutter: 32px;
  --section: 80px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--aviah-white);
  color: var(--aviah-text);
  font: 18px/1.6 var(--font-body);
}
img { max-width: 100%; height: auto; }
h1, h2, h3 { font-family: var(--font-title); color: var(--aviah-blue); font-weight: 700; margin: 0 0 16px; }
h1 { font-size: 48px; line-height: 1.15; }
h2 { font-size: 36px; line-height: 1.2; }
h3 { font-size: 24px; line-height: 1.3; }
p { margin: 0 0 16px; }
a { color: var(--aviah-blue); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--aviah-blue-hover); }
:focus-visible { outline: 3px solid #00345C; outline-offset: 3px; }
.surface-dark :focus-visible { outline-color: #FFFFFF; }

.container { max-width: calc(var(--container) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.lecture { max-width: 72ch; }
.intro { font-size: 20px; color: var(--aviah-text); }
.muted { color: var(--aviah-muted); }
.legende { font-size: 14px; color: var(--aviah-muted); }
.or-texte { color: var(--aviah-gold-text); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.evitement {
  position: absolute; left: 16px; top: -100px; z-index: 50;
  background: var(--aviah-blue); color: #fff; padding: 12px 16px; border-radius: var(--radius-control);
  font-weight: 700; text-decoration: none;
}
.evitement:focus { top: 16px; color: #fff; outline-color: var(--aviah-gold); }

/* ── En-tête : blanc, non fixe (aucun en-tête collant ne doit masquer le focus) ── */
.entete { background: #fff; border-bottom: 1px solid var(--aviah-border); }
.entete .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.aviah-logo-surface { background: #FFFFFF; display: block; flex: 0 0 auto; }
/* Fichier recadré avec la zone libre de 0,10 × L déjà incluse.
   216 px affichés ⇒ le mot AVIAH mesure 180 px (seuil bureau de la charte). */
.aviah-logo { display: block; height: auto; width: 216px; max-width: 100%; object-fit: contain; }
.nav-principale ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.nav-principale a, .nav-principale .sous-bouton {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 8px 14px;
  font: 700 16px/1.2 var(--font-body); color: var(--aviah-blue); text-decoration: none;
  border-radius: var(--radius-control); background: none; border: 0; cursor: pointer;
}
.nav-principale a:hover, .nav-principale .sous-bouton:hover { background: var(--aviah-surface); }
.nav-principale a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--aviah-gold); text-decoration-thickness: 3px; text-underline-offset: 8px; }
.nav-principale .bouton { margin-left: 8px; }
.a-sous-menu { position: relative; }
.sous-bouton svg { width: 16px; height: 16px; transition: transform .15s; }
.sous-bouton[aria-expanded="true"] svg { transform: rotate(180deg); }
.sous-menu {
  display: none; position: absolute; top: calc(100% + 4px); left: 0; z-index: 20; min-width: 260px;
  flex-direction: column; align-items: stretch !important; gap: 0 !important;
  background: #fff; border: 1px solid var(--aviah-border); border-radius: var(--radius-card);
  box-shadow: var(--shadow-card); padding: 8px !important;
}
.sous-menu.ouvert { display: flex; }
.sous-menu a { width: 100%; }
.bouton-menu { display: none; }

/* ── Boutons (hauteur ≥ 48 px, charte §4) ── */
.bouton {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: var(--radius-control);
  font: 700 16px/1.2 var(--font-body); text-decoration: none; cursor: pointer;
  border: 2px solid var(--aviah-blue); transition: background-color .15s, color .15s;
}
.bouton svg { width: 18px; height: 18px; flex: 0 0 auto; }
.bouton-principal { background: var(--aviah-blue); color: #fff; }
.bouton-principal:hover { background: var(--aviah-blue-hover); border-color: var(--aviah-blue-hover); color: #fff; }
.bouton-secondaire { background: #fff; color: var(--aviah-blue); }
.bouton-secondaire:hover { background: var(--aviah-surface); color: var(--aviah-blue); }
.bouton-accent { background: var(--aviah-gold); color: var(--aviah-blue); }
.bouton-accent:hover { background: var(--aviah-gold-hover); color: var(--aviah-blue); }
.bouton[disabled] { opacity: .65; cursor: progress; }
.actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 24px; }

/* ── Sections ── */
.section { padding: var(--section) 0; }
.section-claire { background: var(--aviah-surface); }
.surtitre {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 12px;
  font: 700 14px/1.2 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--aviah-gold-text);
}
.surtitre::before { content: ""; width: 28px; height: 3px; background: var(--aviah-gold); border-radius: 2px; }
.tete-section { max-width: 760px; margin-bottom: 40px; }
.tete-section p { color: var(--aviah-muted); }

/* ── Héros ── */
.heros { padding: 64px 0 var(--section); }
.heros .container { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.heros .intro { max-width: 34em; }
.publics { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.publics li {
  font-size: 15px; color: var(--aviah-blue); background: var(--aviah-surface);
  border: 1px solid var(--aviah-border); border-radius: 999px; padding: 6px 14px;
}
/* Visuel : coupole et rayons traités en motif séparé (charte §5), jamais le logo. */
.coupole {
  position: relative; aspect-ratio: 5 / 5.4; background: var(--aviah-blue);
  border-radius: 50% 50% var(--radius-card) var(--radius-card) / 34% 34% var(--radius-card) var(--radius-card);
  padding: 22% 9% 9%; display: flex; flex-direction: column; justify-content: flex-end; gap: 16px; overflow: hidden;
}
.coupole .rayons { position: absolute; left: 50%; top: 9%; width: 62%; transform: translateX(-50%); color: var(--aviah-gold); opacity: .9; }
.carte-marque {
  position: relative; display: flex; align-items: center; gap: 16px; background: #fff;
  border-radius: var(--radius-card); padding: 16px 20px; text-decoration: none; color: var(--aviah-text);
}
.carte-marque img { flex: 0 0 auto; height: 52px; width: auto; }
.carte-marque strong { display: block; color: var(--aviah-blue); font-size: 17px; }
.carte-marque span { font-size: 15px; color: var(--aviah-muted); }
.carte-marque:hover { box-shadow: 0 0 0 3px var(--aviah-gold); }

/* ── Cartes ── */
.grille { display: grid; gap: 24px; }
.grille-2 { grid-template-columns: repeat(2, 1fr); }
.grille-3 { grid-template-columns: repeat(3, 1fr); }
.grille-4 { grid-template-columns: repeat(4, 1fr); }
.carte {
  background: #fff; border: 1px solid var(--aviah-border); border-radius: var(--radius-card);
  padding: 28px; display: flex; flex-direction: column; gap: 12px;
}
.carte h3 { margin: 0; }
.carte p { margin: 0; color: var(--aviah-muted); }
.carte .bouton { align-self: flex-start; margin-top: auto; }
.carte-service { box-shadow: var(--shadow-card); }
.carte-service .logo-partenaire { height: 64px; display: flex; align-items: center; }
.carte-service .logo-partenaire img { max-height: 64px; width: auto; }
.carte-service ul { margin: 0; padding-left: 20px; color: var(--aviah-text); font-size: 17px; }
.icone {
  width: 48px; height: 48px; border-radius: var(--radius-control); background: var(--aviah-surface);
  color: var(--aviah-blue); display: flex; align-items: center; justify-content: center; flex: 0 0 auto;
}
.icone svg { width: 24px; height: 24px; }
.etape-num {
  width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--aviah-gold);
  color: var(--aviah-blue); font: 700 18px/36px var(--font-title); text-align: center;
}

/* ── Faits vérifiables ── */
.faits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--aviah-border); border-radius: var(--radius-card); background: #fff; }
.faits > div { padding: 24px 28px; border-right: 1px solid var(--aviah-border); }
.faits > div:last-child { border-right: 0; }
.faits dt { font-size: 14px; color: var(--aviah-muted); margin-bottom: 4px; }
.faits dd { margin: 0; font-weight: 700; color: var(--aviah-blue); }

/* ── Pages intérieures ── */
.bandeau-page { padding: 56px 0 48px; border-bottom: 1px solid var(--aviah-border); }
.fil { font-size: 14px; margin-bottom: 16px; color: var(--aviah-muted); }
.fil ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.fil li + li::before { content: "/"; margin-right: 8px; color: var(--aviah-border); }
.bandeau-service { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.bandeau-service .zone-logo { background: #fff; border: 1px solid var(--aviah-border); border-radius: var(--radius-card); padding: 16px 20px; }
.bandeau-service .zone-logo img { display: block; height: 72px; width: auto; }
.colonnes { display: grid; grid-template-columns: 1fr 340px; gap: 56px; align-items: start; }
.encart { background: var(--aviah-surface); border-radius: var(--radius-card); padding: 28px; }
.encart h2, .encart h3 { font-size: 22px; }
.encart dl { margin: 0; }
.encart dt { font-weight: 700; color: var(--aviah-blue); font-size: 16px; margin-top: 16px; }
.encart dt:first-child { margin-top: 0; }
.encart dd { margin: 4px 0 0; font-size: 17px; }
.fiche h2 { font-size: 30px; margin-top: 48px; }
.fiche h2:first-child { margin-top: 0; }
.liste-coches { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 12px; }
.liste-coches li { display: flex; gap: 12px; align-items: flex-start; }
.liste-coches svg { width: 22px; height: 22px; color: var(--aviah-success); flex: 0 0 auto; margin-top: 4px; }
.liste-coches b { color: var(--aviah-blue); }
.modules { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 8px 0 16px; }
.module { display: flex; gap: 14px; align-items: flex-start; padding: 18px; border: 1px solid var(--aviah-border); border-radius: var(--radius-card); }
.module h3 { font-family: var(--font-body); font-size: 17px; margin: 0 0 4px; }
.module p { margin: 0; font-size: 16px; color: var(--aviah-muted); }
.limites { border-left: 4px solid var(--aviah-gold); background: #fff; padding: 16px 20px; border-radius: 0 var(--radius-control) var(--radius-control) 0; }

/* ── FAQ (contenu dans le HTML, indexable) ── */
.faq { border-top: 1px solid var(--aviah-border); }
.faq details { border-bottom: 1px solid var(--aviah-border); }
.faq summary {
  list-style: none; cursor: pointer; min-height: 56px; padding: 16px 40px 16px 0; position: relative;
  font-weight: 700; color: var(--aviah-blue);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 8px; top: 12px; font: 400 28px/1 var(--font-body); color: var(--aviah-blue); }
.faq details[open] summary::after { content: "–"; }
.faq details > div { padding: 0 0 20px; color: var(--aviah-text); }

/* ── Contact ── */
.formulaire { display: grid; gap: 22px; }
.champ { display: grid; gap: 6px; }
.champ label, .champ legend { font-weight: 700; color: var(--aviah-blue); font-size: 16px; }
.champ .aide { font-size: 14px; color: var(--aviah-muted); }
.champ input, .champ select, .champ textarea {
  width: 100%; min-height: 48px; padding: 12px 14px; font: 17px/1.4 var(--font-body); color: var(--aviah-text);
  background: #fff; border: 1px solid var(--aviah-input-border); border-radius: var(--radius-control);
}
.champ textarea { min-height: 180px; resize: vertical; }
.champ input:focus, .champ select:focus, .champ textarea:focus { border-color: var(--aviah-blue); }
.champ [aria-invalid="true"] { border: 2px solid var(--aviah-error); }
.erreur-champ { color: var(--aviah-error); font-size: 15px; font-weight: 700; }
.erreur-champ:empty { display: none; }
.deux-champs { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.obligatoire { color: var(--aviah-error); }
.piege { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.message {
  display: flex; gap: 12px; align-items: flex-start; padding: 16px 18px; border-radius: var(--radius-control);
  border: 2px solid; font-size: 17px;
}
.message svg { width: 22px; height: 22px; flex: 0 0 auto; margin-top: 2px; }
.message-succes { border-color: var(--aviah-success); color: var(--aviah-success); background: #fff; }
.message-erreur { border-color: var(--aviah-error); color: var(--aviah-error); background: #fff; }
.message p { margin: 0; color: var(--aviah-text); }
.message strong { display: block; }
.notice { font-size: 15px; color: var(--aviah-muted); }

/* ── Pied de page : bleu, logo sur surface blanche ── */
.pied { background: var(--aviah-blue); color: #fff; padding: 56px 0 28px; margin-top: 0; }
.pied a { color: #fff; }
.pied a:visited { color: #fff; }
.pied .container > .grille { grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 32px; }
.pied h2 { font: 700 16px/1.3 var(--font-body); color: #fff; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 12px; }
.pied ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 16px; }
.pied .aviah-logo-surface { display: inline-block; border-radius: var(--radius-control); }
.pied .aviah-logo { width: 160px; }
.pied p { font-size: 16px; color: #fff; }
.pied .bas { border-top: 1px solid rgba(255,255,255,.25); margin-top: 40px; padding-top: 20px; font-size: 14px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

.erreur-404 { text-align: center; padding: 96px 0; }
.erreur-404 .actions { justify-content: center; }

/* ── Adaptations ── */
@media (max-width: 1023px) {
  .heros .container, .colonnes { grid-template-columns: 1fr; }
  .grille-3, .grille-4 { grid-template-columns: repeat(2, 1fr); }
  .pied .container > .grille { grid-template-columns: 1fr 1fr; }
  .coupole { max-width: 460px; }
}
@media (max-width: 900px) {
  .entete .container { flex-wrap: wrap; justify-content: space-between; padding-top: 8px; padding-bottom: 8px; }
  .bouton-menu {
    display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 10px 16px;
    font: 700 16px/1 var(--font-body); color: var(--aviah-blue); background: #fff;
    border: 2px solid var(--aviah-blue); border-radius: var(--radius-control); cursor: pointer;
  }
  .bouton-menu svg { width: 20px; height: 20px; }
  .nav-principale { display: none; width: 100%; padding-bottom: 16px; }
  .nav-principale.ouverte { display: block; }
  .nav-principale ul { flex-direction: column; align-items: stretch; }
  .nav-principale a, .nav-principale .sous-bouton { width: 100%; justify-content: space-between; }
  .nav-principale .bouton { margin: 8px 0 0; justify-content: center; }
  .sous-menu { position: static; box-shadow: none; border: 0; padding: 0 0 0 16px !important; }
}
@media (max-width: 767px) {
  :root { --gutter: 20px; --section: 48px; }
  body { font-size: 17px; }
  h1 { font-size: 32px; }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }
  .intro { font-size: 18px; }
  .fiche h2 { font-size: 26px; }
  /* 192 px affichés ⇒ mot AVIAH à 160 px (seuil mobile de la charte). */
  .aviah-logo { width: 192px; }
  .heros { padding-top: 32px; }
  .grille-2, .grille-3, .grille-4, .modules, .deux-champs, .faits { grid-template-columns: 1fr; }
  .faits > div { border-right: 0; border-bottom: 1px solid var(--aviah-border); }
  .faits > div:last-child { border-bottom: 0; }
  .pied .container > .grille { grid-template-columns: 1fr; }
  .actions .bouton { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
.a-sous-menu.courant > .sous-bouton { text-decoration: underline; text-decoration-color: var(--aviah-gold); text-decoration-thickness: 3px; text-underline-offset: 8px; }
/* Priorité sur `.nav-principale ul` / `.nav-principale a` (spécificité plus forte). */
.nav-principale .sous-menu { display: none; }
.nav-principale .sous-menu.ouvert { display: flex; }
.nav-principale a.bouton-principal { background: var(--aviah-blue); color: #fff; padding: 8px 20px; }
.nav-principale a.bouton-principal:hover { background: var(--aviah-blue-hover); color: #fff; }
.nav-principale a.bouton-principal[aria-current="page"] { text-decoration: none; box-shadow: 0 0 0 3px var(--aviah-gold); }