/* ==========================================================================
   Header : transparent sur le hero (texte blanc), puis fond blanc dès
   qu'on défile ou qu'un menu est ouvert (.is-solid). Méga-menus.
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: var(--z-header);
  color: var(--white);
  background: transparent;
  transition:
    background-color var(--dur-slow) var(--ease-out),
    color var(--dur-slow) var(--ease-out),
    box-shadow var(--dur-slow) var(--ease-out);
}

.site-header.is-solid {
  color: var(--navy);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

/* Le header est plus large que le contenu (1408px max) : 6 rubriques + CTA */
.site-header .container {
  width: min(100% - 2 * var(--gutter), 88rem);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  min-height: 5rem;
}

.site-header .logo { flex: none; }
.site-header .logo img { width: 8.75rem; }

.logo__solid { display: none; }
.site-header.is-solid .logo__solid { display: block; }
.site-header.is-solid .logo__clear { display: none; }

[data-header-sentinel] {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 24px;
  pointer-events: none;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

/* ---------------------------------------------------- Navigation desktop */
.site-nav {
  display: none;
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: stretch;
  list-style: none;
  padding: 0;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  min-height: 5rem;
  padding-inline: 0.7rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  color: inherit;
  white-space: nowrap;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 1.25rem;
  height: 2px;
  border-radius: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}

.nav-link:hover::after,
.nav-link[aria-expanded="true"]::after,
.nav-link[aria-current="page"]::after,
.nav-link.is-current::after {
  transform: scaleX(1);
}

.nav-link .icon {
  width: 0.75rem;
  height: 0.75rem;
  transition: transform var(--dur) var(--ease-out);
}

.nav-link[aria-expanded="true"] .icon {
  transform: rotate(180deg);
}

.nav-link:focus-visible {
  outline-offset: -6px;
}

/* ------------------------------------------------------------ Méga-menu */
.mega {
  position: absolute;
  inset: 100% 0 auto;
  background: var(--white);
  color: var(--navy);
  border-top: 1px solid var(--line);
  box-shadow: 0 24px 48px rgb(24 56 88 / 0.14);
}

@media (prefers-reduced-motion: no-preference) {
  .mega:not([hidden]) {
    animation: mega-in var(--dur-slow) var(--ease-out);
  }
}

@keyframes mega-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.mega__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 22rem);
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-7);
}

.mega__title {
  margin-bottom: var(--space-3);
  padding-left: var(--space-3);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--slate);
}

.mega__list {
  display: grid;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
}

.mega-link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-1) var(--space-3);
  align-items: start;
  padding: var(--space-3);
  border-radius: var(--radius-field);
  text-decoration: none;
  color: var(--navy);
  transition: background-color var(--dur-fast) var(--ease-out);
}

.mega-link:hover { background: var(--teal-tint); }

.mega-link__icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--teal-tint);
  color: var(--teal-ink);
  grid-row: span 2;
}

.mega-link:hover .mega-link__icon { background: var(--white); }

.mega-link__icon .icon { width: 1.25rem; height: 1.25rem; }

.mega-link strong {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  line-height: 1.2;
}

.mega-link__desc {
  font-size: var(--fs-sm);
  line-height: 1.45;
  color: var(--slate);
}

.mega__feature {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-1);
  min-height: 15rem;
  padding: var(--space-5);
  border-radius: var(--radius-card);
  overflow: hidden;
  color: var(--white);
  text-decoration: none;
}

.mega__feature img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.mega__feature::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to top, rgb(14 34 51 / 0.92), rgb(14 34 51 / 0.25));
}

.mega__feature:hover img { transform: scale(1.03); }

.mega__feature strong {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  line-height: 1.2;
}

.mega__feature-price {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: var(--fs-sm);
}

.mega__feature-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1;
}

.mega__feature-link .icon { width: 1rem; height: 1rem; }

/* ------------------------------------------------------ Menu mobile */
.menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding-inline: var(--space-4);
  border-radius: var(--radius-pill);
  border: 1.5px solid currentColor;
  font-weight: 700;
  font-size: var(--fs-sm);
  line-height: 1;
  color: inherit;
}

.menu-toggle .icon { width: 1.125rem; height: 1.125rem; }

.mobile-menu {
  max-height: calc(100dvh - 5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--white);
  color: var(--navy);
  border-top: 1px solid var(--line);
  padding-block: var(--space-3) var(--space-6);
}

.mobile-nav {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-5);
}

.mobile-nav > li { border-bottom: 1px solid var(--line); }

.mobile-nav a,
.mobile-nav__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 3.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1875rem;
  text-align: left;
  text-decoration: none;
  color: var(--navy);
}

.mobile-nav__toggle .icon {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--teal-ink);
  transition: transform var(--dur) var(--ease-out);
}

.mobile-nav__toggle[aria-expanded="true"] .icon { transform: rotate(180deg); }

.mobile-nav__sub {
  list-style: none;
  padding: 0 0 var(--space-3) var(--space-4);
  border-left: 2px solid var(--teal);
  margin-bottom: var(--space-3);
}

.mobile-nav__sub a {
  min-height: 2.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
}

@media (min-width: 80em) {
  .site-nav { display: block; }
  .site-header__actions { margin-left: var(--space-2); }
  .menu-toggle, .mobile-menu { display: none !important; }
}

/* Entre 1280 et 1440px : nav resserrée pour garder logo, 6 rubriques
   et CTA sur une seule ligne. */
@media (min-width: 80em) and (max-width: 89.99em) {
  .site-header__inner { gap: var(--space-4); }
  .site-header .logo img { width: 7.5rem; }
  .nav-link {
    padding-inline: 0.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
  }
  .nav-link::after { left: 0.5rem; right: 0.5rem; }
}

@media (max-width: 29.99em) {
  .site-header__cta { display: none; }
}