/*
 * layout.css — Page scaffolding: header, nav, footer, grids
 * Tribu Bamiléké — tribubamileke.org
 * Mobile-first; widening rules live in responsive.css
 */

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

main {
  min-height: 60vh;
}

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

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

.section__title {
  margin-bottom: var(--space-lg);
}

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

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: var(--header-height);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.site-header__logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: 700;
  flex-shrink: 0;
}

.site-header__controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* ---------- Primary nav (drawer on mobile) ---------- */
.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(20rem, 85vw);
  background-color: var(--color-bg);
  border-left: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  padding: calc(var(--header-height) + var(--space-md)) var(--space-md) var(--space-md);
  overflow-y: auto;
  z-index: 90;
}

.site-nav[data-open="true"] {
  transform: translateX(0);
}

.site-nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.site-nav__link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-md);
}

.site-nav__link:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
}

.site-nav__link[aria-current="page"] {
  background-color: var(--color-primary);
  color: #ffffff;
}

[data-theme="dark"] .site-nav__link[aria-current="page"] {
  color: #1a150f;
}

/* Hamburger */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Backdrop behind open drawer */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(13, 10, 6, 0.5);
  z-index: 80;
}

.nav-backdrop[hidden] {
  display: none;
}

/* ---------- Grids ---------- */
.grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #f0ece4;
  padding-block: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xl);
}

[data-theme="dark"] .site-footer {
  background-color: #10131c;
}

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

.site-footer__title {
  color: var(--color-secondary-light);
  font-size: var(--fs-md);
  margin-bottom: var(--space-sm);
}

.site-footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.site-footer a {
  color: #f0ece4;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-secondary-light);
  text-decoration: underline;
}

.site-footer__legal {
  border-top: 1px solid rgba(240, 236, 228, 0.25);
  padding-top: var(--space-md);
  font-size: var(--fs-sm);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
}

.site-footer__social {
  display: flex;
  gap: var(--space-md);
}

/* ---------- Page hero (interior pages) ---------- */
.page-hero {
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-lg);
}

.page-hero__title {
  margin-bottom: var(--space-xs);
}

.page-hero__intro {
  color: var(--color-text-light);
  max-width: 60ch;
  margin-bottom: 0;
}

/* ---------- Newsletter ---------- */
.newsletter {
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

[data-theme="dark"] .newsletter {
  background-color: #2b3a55;
}

.newsletter__title {
  color: #ffffff;
  margin-bottom: var(--space-sm);
}

.newsletter__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 28rem;
  margin: var(--space-md) auto 0;
}

.newsletter__input {
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-md);
  border: none;
  width: 100%;
}

/* ---------- Language map ---------- */
.lang-map {
  width: 100%;
  max-width: 40rem;
  margin-inline: auto;
}

.lang-map__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-md);
  font-size: var(--fs-sm);
}

.lang-map__swatch {
  display: inline-block;
  width: 0.875rem;
  height: 0.875rem;
  border-radius: var(--radius-sm);
  margin-right: var(--space-xs);
  vertical-align: middle;
}