/* =============================================================================
   LAYOUT — en-tête, navigation mobile, pied de page
   ========================================================================== */

/* -----------------------------------------------------------------------------
   Logo (réutilisé dans l'en-tête et le pied de page)
   -------------------------------------------------------------------------- */
.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand__logo {
  width: auto;
  height: 30px;
}

/* Version claire, posée sur les fonds bordeaux */
.brand--light .brand__logo {
  filter: brightness(0) invert(1);
}

/* -----------------------------------------------------------------------------
   En-tête
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--cream) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-height);
}

.site-nav {
  display: flex;
  gap: 2rem;
}

.site-nav a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--ink);
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--bordeaux);
}

.site-header__tagline {
  max-width: 120px;
  font-weight: 600;
  font-size: 0.56rem;
  letter-spacing: 0.16em;
  line-height: 1.7;
  text-align: right;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  background: none;
  border: 0;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--bordeaux);
}

@media (max-width: 900px) {
  .site-nav,
  .site-header__tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}

/* -----------------------------------------------------------------------------
   Menu mobile plein écran
   -------------------------------------------------------------------------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 150;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem clamp(24px, 7vw, 60px);
  color: var(--cream);
  background: var(--bordeaux);
  transform: translateY(-101%);
  transition: transform 0.5s cubic-bezier(0.7, 0, 0.15, 1);
}

.mobile-menu.is-open {
  transform: none;
}

.mobile-menu a {
  padding: 0.3rem 0;
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 9vw, 3.4rem);
  color: var(--cream);
  border-bottom: 1px solid var(--line-light);
}

.mobile-menu a em {
  color: var(--gold);
}

.mobile-menu__close {
  position: absolute;
  top: 22px;
  right: clamp(20px, 5vw, 60px);
  font-family: var(--font-title);
  font-size: 2rem;
  color: var(--cream);
  background: none;
  border: 0;
  cursor: pointer;
}

/* -----------------------------------------------------------------------------
   Pied de page
   -------------------------------------------------------------------------- */
.site-footer {
  padding-block: clamp(24px, 3vw, 36px);
  background: var(--cream);
  border-top: 1px solid var(--line);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.4rem;
}

.site-footer__group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.site-footer .brand__logo {
  height: 24px;
}

.site-footer__tagline {
  font-weight: 600;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.site-footer__nav {
  display: flex;
  gap: 1.2rem;
}

.site-footer__nav a,
.site-footer__email {
  font-size: 0.8rem;
  color: var(--ink);
}

.site-footer__nav a:hover,
.site-footer__email:hover {
  color: var(--bordeaux);
}

.site-footer__social {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.site-footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: var(--transition);
}

.site-footer__social a:hover {
  color: var(--cream);
  background: var(--bordeaux);
  border-color: var(--bordeaux);
}

.site-footer__bottom {
  margin-top: 1rem;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

@media (max-width: 820px) {
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}