/* =========================================================
   HEADER — VERSION MAQUETTE
   ========================================================= */

.site-header {
  background-color: var(--color-bg-main);
}

/* Skip link */

.skip-link {
  position: absolute;
  top: -40px;
  left: 16px;
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
  padding: 8px 12px;
  border: 2px solid var(--color-border);
  z-index: 1000;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

/* Bande haute */

.header-top {
  background-color: var(--color-bg-alt);
  font-size: 0.8rem;
}

.header-top-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.header-institution {
  display: flex;
  gap: 12px;
  font-weight: 600;
}

.institution-territory {
  color: var(--color-text-muted);
}

.header-tools a {
  margin-left: 16px;
  color: var(--color-text-muted);
  font-weight: 500;
  text-decoration: none;
}

/* Bloc principal */

.header-main {
  padding: 24px 0;
}

.header-main-inner {
  display: grid;
  grid-template-columns: 3fr 1fr;
  align-items: center;
  gap: 32px;
}

/* Partie gauche */

.header-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.identity-main {
  display: flex;
  gap: 20px;
  align-items: center;
}

.identity-logo {
  width: 64px;
  height: 64px;
  border: 3px solid var(--color-primary);
  color: var(--color-primary);
  font-weight: 800;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.identity-title {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 700;
}

.identity-tagline {
  margin: 4px 0 0;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */

.header-nav {
  margin-top: 8px;
}

.nav-main {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.nav-main a {
  font-weight: 600;
  color: var(--color-text-main);
  text-decoration: none;
}

.nav-main a[aria-current="page"] {
  color: var(--color-primary);
}

/* Identité locale */

.header-right {
  display: flex;
  justify-content: flex-end;
}

.identity-local svg {
  width: 96px;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 2;
  opacity: 0.8;
}

/* Ligne rouge structurante */

.header-separator {
  border-bottom: 4px solid var(--color-primary);
}

/* Responsive */

@media (max-width: 900px) {
  .header-main-inner {
    grid-template-columns: 1fr;
  }

  .header-right {
    justify-content: flex-start;
    margin-top: 16px;
  }

  .nav-main {
    flex-wrap: wrap;
    gap: 16px;
  }
}