/*
 * layout.css
 * Structure générale : conteneurs, en-tête, navigation, pied de page, grilles.
 */

.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2.5rem, var(--container-narrow));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-2xl);
  position: relative;
}

.section--soft {
  background-color: var(--color-cream-soft);
}

.section--tight {
  padding-block: var(--space-xl);
}

/* ---------- En-tête ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(245, 240, 230, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-xs);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-2xs);
  text-decoration: none;
  line-height: 1;
}

.brand__mark {
  font-family: var(--font-display);
  font-size: 2.1rem;
  white-space: nowrap;
}

.brand__mark span:nth-child(1) { color: var(--color-sage-dark); }
.brand__mark span:nth-child(2) { color: var(--color-terracotta-dark); }
.brand__mark span:nth-child(3) { color: var(--color-navy-dark); }

.brand__tagline {
  display: none;
  font-family: var(--font-body);
  font-size: var(--fs-300);
  color: var(--color-text-soft);
  letter-spacing: 0.02em;
}

@media (min-width: 640px) {
  .brand__tagline {
    display: inline;
  }
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: var(--space-2xs) var(--space-sm);
}

.nav-toggle__icon {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-navy-dark);
  position: relative;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--color-navy-dark);
  transition: transform var(--transition-fast);
}

.nav-toggle__icon::before { top: -6px; }
.nav-toggle__icon::after { top: 6px; }

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }
}

.main-nav {
  display: none;
}

.main-nav.is-open {
  display: block;
  position: absolute;
  inset-inline: 0;
  top: 100%;
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.main-nav__list {
  list-style: none;
  padding: var(--space-sm);
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.main-nav__list a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--color-navy-dark);
  font-weight: 600;
  text-decoration: none;
}

.main-nav__list a:hover,
.main-nav__list a:focus-visible,
.main-nav__list a[aria-current="page"] {
  background-color: var(--color-sage-tint);
  color: var(--color-sage-dark);
}

@media (min-width: 900px) {
  .main-nav,
  .main-nav.is-open {
    display: block;
    position: static;
    background: none;
    border: none;
    box-shadow: none;
  }

  .main-nav__list {
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: var(--space-md);
  }

  .main-nav__list a {
    padding: var(--space-3xs) var(--space-2xs);
  }
}

.btn.header-cta {
  display: none;
}

@media (min-width: 900px) {
  .btn.header-cta {
    display: inline-flex;
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-2xl) var(--space-xl);
}

.hero__decor {
  position: absolute;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
  user-select: none;
}

.hero__decor--tl {
  top: 0;
  left: 0;
  width: min(280px, 40vw);
}

.hero__decor--br {
  bottom: 0;
  right: 0;
  width: min(260px, 38vw);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 46rem;
}

.hero--center .hero__content {
  max-width: 42rem;
  margin-inline: auto;
  text-align: center;
}

.page-hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-xl) var(--space-lg);
  text-align: center;
}

.page-hero__content {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  font-size: var(--fs-300);
  color: var(--color-text-soft);
  margin-bottom: var(--space-sm);
}

.breadcrumb a {
  color: var(--color-text-soft);
}

/* ---------- Grilles ---------- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.split {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 860px) {
  .split {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .split--reverse {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .split--reverse > :first-child {
    order: 2;
  }
}

/* ---------- Pied de page ---------- */
.site-footer {
  background-color: var(--color-navy-dark);
  color: var(--color-text-invert);
  padding-block: var(--space-xl) var(--space-lg);
}

.site-footer a {
  color: var(--color-text-invert);
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-terracotta-tint);
}

.footer-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(245, 243, 234, 0.15);
}

.footer-grid h2,
.footer-grid h3 {
  color: var(--color-text-invert);
  font-size: var(--fs-500);
  margin-bottom: var(--space-xs);
}

.footer-brand__mark {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-text-invert);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  font-size: var(--fs-300);
  color: rgba(245, 243, 234, 0.75);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
  padding: 0;
}

.footer-legal-links li + li {
  margin-top: 0;
}

.footer-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-2xs);
}

.footer-list li {
  margin: 0;
}