/* ============================================
   LAYOUT — Header, footer, conteneurs, grille
   ============================================ */

/* ---- Conteneur central ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (max-width: 640px) {
  .container {
    padding-inline: var(--space-4);
  }
}

/* ---- HEADER ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-4);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.site-logo-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1.1;
}

.site-logo-title {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  font-weight: var(--font-weight-normal);
}

/* Navigation principale */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav a.active {
  background-color: var(--color-primary);
  color: var(--color-text-inv);
}

/* Sélecteur de langue */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: var(--space-3);
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-border);
}

.site-nav .lang-switch a {
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-light);
}

.site-nav .lang-switch a.is-current {
  color: var(--color-primary);
  box-shadow: inset 0 -2px 0 var(--color-primary);
  border-radius: 0;
}

/* Bouton hamburger */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
  background-color: var(--color-bg-alt);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  pointer-events: none;
}

/* Mobile : menu hamburger */
@media (max-width: 1100px) {
  .site-logo-title {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-4);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    box-shadow: var(--shadow-md);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
  }

  .lang-switch {
    margin: var(--space-2) 0 0;
    padding: var(--space-2) var(--space-2) 0;
    border-left: 0;
    border-top: 1px solid var(--color-border);
  }

  .site-nav .lang-switch a {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
  }
}

/* ---- PAGE HERO ---- */
.page-hero {
  background: var(--color-primary);
  color: var(--color-text-inv);
  padding: var(--space-16) 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../assets/images/hero/cover2-SEW2021.jpg') center/cover no-repeat;
  opacity: 0.15;
}

.page-hero .container {
  position: relative;
}

.page-hero h1 {
  color: var(--color-text-inv);
  margin-bottom: var(--space-3);
}

.page-hero .hero-subtitle {
  font-size: var(--font-size-lg);
  opacity: 0.85;
  margin-bottom: 0;
}

/* Hero de page interne (plus petit) */
.page-hero--inner {
  padding: var(--space-10) 0 var(--space-8);
}

.page-hero--inner h1 {
  font-size: var(--font-size-2xl);
}

/* Fil d'Ariane */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-4);
}

.breadcrumb a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: white;
}
.breadcrumb span {
  color: rgba(255,255,255,0.4);
}

/* ---- Navigation interne (ancres) ---- */
.section-nav {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-height);
  z-index: 90;
}

.section-nav-inner {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  padding: var(--space-3) 0;
  scrollbar-width: none;
}

.section-nav-inner::-webkit-scrollbar {
  display: none;
}

.section-nav a {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  border-radius: var(--radius-full);
  white-space: nowrap;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.section-nav a:hover,
.section-nav a.active {
  background-color: var(--color-primary);
  color: white;
}

/* ---- MAIN CONTENT ---- */
main {
  min-height: calc(100vh - var(--header-height) - 200px);
}

/* ---- Sections ---- */
.section {
  padding: var(--space-16) 0;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section-header {
  margin-bottom: var(--space-8);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header p {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  max-width: 700px;
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

/* Séparateur entre sections */
.section + .section {
  border-top: 1px solid var(--color-border);
}

.section--alt + .section--alt {
  border-top: none;
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-inv);
  padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

.footer-block h3 {
  color: white;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer-block p,
.footer-block address {
  font-style: normal;
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
}

.footer-block a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-block a:hover {
  color: white;
  text-decoration: none;
}

.footer-nav {
  list-style: none;
  padding: 0;
}

.footer-nav li {
  margin-bottom: var(--space-2);
}

.footer-nav a {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: white;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  color: white;
  transition: background-color var(--transition-fast);
  text-decoration: none;
}

.footer-social a:hover {
  background: rgba(255,255,255,0.25);
}

.footer-social svg {
  width: 16px;
  height: 16px;
  fill: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.5);
  margin-bottom: 0;
}

/* ---- Grille responsive générique ---- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}