/* Éléments présents sur toutes les pages : en-tête, menu, bandeau de titre, pied de page. */

/* ---------- En-tête ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ink-v2026);
  color: #f7f1e6;
}
.site-header--overlay { position: absolute; left: 0; right: 0; background: transparent; }
.site-header--overlay.is-stuck { position: fixed; background: rgba(18, 18, 18, .94); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height-v2026);
}

.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; }
.brand__logo { width: 38px; height: 38px; }
.brand__name { font: 600 1.5rem/1 var(--font-title-v2026); letter-spacing: .06em; }

.main-nav ul { display: flex; gap: 2rem; margin: 0; padding: 0; list-style: none; }
.main-nav a {
  padding-bottom: .25rem;
  font-size: .78rem;
  font-weight: 400;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}
.main-nav a:hover, .main-nav a.is-active { color: var(--gold-v2026); border-color: var(--gold-v2026); }

.nav-toggle { display: none; }

/* Menu mobile : panneau plein écran */
@media (max-width: 860px) {
  .nav-toggle {
    display: grid;
    gap: 5px;
    width: 44px;
    height: 44px;
    place-content: center;
    background: none;
    border: 0;
    cursor: pointer;
    z-index: 60;
  }
  .nav-toggle span { width: 24px; height: 2px; background: #f7f1e6; transition: transform .25s, opacity .25s; }
  .nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .main-nav {
    position: fixed;
    inset: 0;
    display: grid;
    place-items: center;
    background: rgba(12, 12, 12, .98);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s, visibility .25s;
  }
  .nav-open .main-nav { opacity: 1; visibility: visible; }
  .main-nav ul { flex-direction: column; align-items: center; gap: 1.6rem; }
  .main-nav a { font-size: 1.05rem; }
  .nav-open { overflow: hidden; }
}

/* ---------- Bandeau de titre des pages intérieures ---------- */
.page-hero {
  padding-block: clamp(3rem, 8vw, 5.5rem);
  text-align: center;
  background: linear-gradient(rgba(18, 18, 18, .86), rgba(18, 18, 18, .86)), url('/assets/img/background-responsive.jpg') center / cover;
  color: #f7f1e6;
}
.page-hero h1 { margin-bottom: .3em; font-size: clamp(2.4rem, 7vw, 4.2rem); color: #f7f1e6; }
.page-hero h1 em { color: var(--gold-v2026); }
.page-hero p { max-width: 42rem; margin-inline: auto; opacity: .85; }

/* ---------- Pied de page ---------- */
.site-footer { background: #0c0c0c; color: #bbb; font-size: .9rem; }
.site-footer__grid {
  display: grid;
  gap: 2rem;
  padding-block: 3rem;
  grid-template-columns: 1fr;
}
.site-footer__title { margin-bottom: .6rem; font: 500 1.25rem/1.2 var(--font-title-v2026); color: var(--gold-v2026); }
.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li { margin-bottom: .35rem; }
.site-footer address { font-style: normal; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--gold-v2026); }
.site-footer__legal { padding-block: 1rem; border-top: 1px solid #222; font-size: .78rem; color: #8a8a8a; text-align: center; }
.site-footer__legal a { color: var(--gold-v2026); }

@media (min-width: 640px) { .site-footer__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .site-footer__grid { grid-template-columns: 2fr 1fr 1.4fr 1fr; } }