/* ============================================================
   layout.css — Grilles, conteneurs, mise en page
   Kalamundi — La Plume du Monde
   ============================================================ */

/* ============================================================
   Conteneurs
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

.container--sm { max-width: var(--container-sm); }
.container--md { max-width: var(--container-md); }
.container--lg { max-width: var(--container-lg); }

/* ============================================================
   Navbar
   ============================================================ */

.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding-inline: var(--spacing-md);
  max-width: var(--container-xl);
  margin-inline: auto;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-inverse);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
}

.navbar__logo img {
  height: 36px;
  width: auto;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.navbar__link {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.navbar__link:hover,
.navbar__link--active {
  color: var(--text-inverse);
  background-color: rgba(255, 255, 255, 0.12);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Bouton hamburger — mobile */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-xs);
  cursor: pointer;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-inverse);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-fast);
}

/* ============================================================
   Layout principal
   ============================================================ */

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding-block: var(--spacing-lg);
}

/* ============================================================
   Grilles
   ============================================================ */

.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Grille auto-responsive pour les cartes */
.grid--cards {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.grid--cards-lg {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

/* ============================================================
   Flex utilitaires
   ============================================================ */

.flex         { display: flex; }
.flex-col     { display: flex; flex-direction: column; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap    { flex-wrap: wrap; }
.gap-xs  { gap: var(--spacing-xs); }
.gap-sm  { gap: var(--spacing-sm); }
.gap-md  { gap: var(--spacing-md); }
.gap-lg  { gap: var(--spacing-lg); }

/* ============================================================
   Section hero
   ============================================================ */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--text-inverse);
  padding-block: var(--spacing-xl);
  text-align: center;
}

.hero__title {
  font-size: clamp(var(--font-size-2xl), 5vw, var(--font-size-3xl));
  color: var(--text-inverse);
  margin-bottom: var(--spacing-md);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-inline: auto;
}

/* ============================================================
   Section générique
   ============================================================ */

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

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

.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.section__title {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: var(--border-radius-full);
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding-block: var(--spacing-xl);
  font-size: var(--font-size-sm);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer__logo {
  color: var(--text-inverse);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.footer__tagline {
  font-style: italic;
  color: var(--color-accent-light);
  margin-bottom: var(--spacing-md);
}

.footer__heading {
  color: var(--text-inverse);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer__link {
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-accent-light);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.45);
}

/* ============================================================
   Sidebar layout (dashboard)
   ============================================================ */

.layout-sidebar {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 76px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
}

.sidebar__item:hover,
.sidebar__item--active {
  background-color: var(--bg-secondary);
  color: var(--color-primary);
}

/* ============================================================
   Responsive — Mobile first
   ============================================================ */

@media (max-width: 768px) {
  .navbar__nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-primary-dark);
    padding: var(--spacing-md);
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-lg);
  }

  .navbar__nav.is-open {
    display: flex;
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar {
    position: relative;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }

  .layout-sidebar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-block: var(--spacing-lg);
  }
}