/* ================================================================
   LAYOUT — Containers, sections, grid utilities
   Depends on: typography.css
================================================================ */

/* ── Containers ──────────────────────────────────────────────── */

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

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

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

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

/* ── Section padding ─────────────────────────────────────────── */

.section-pad {
  padding-block: var(--section-pad-lg);
}

.section-pad-md {
  padding-block: var(--section-pad-md);
}

.section-pad-sm {
  padding-block: var(--section-pad-sm);
}

/* ── Section backgrounds ─────────────────────────────────────── */

/* Default: white */
.section {
  background-color: var(--bg-primary);
}

/* Alternating off-white */
.section--secondary {
  background-color: var(--bg-secondary);
}

/* Dark navy — for Trust strips, Bunker, etc. */
.section--dark {
  background-color: var(--bg-dark);
  color: var(--text-on-dark-primary);
}

.section--dark .section-label,
.section--dark .chapter-label {
  color: var(--text-label);
}

.section--dark .section-title,
.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--text-on-dark);
}

.section--dark .section-sub,
.section--dark p {
  color: var(--text-on-dark-muted);
}

/* Dark blue — Captain's Desk header, accent strips */
.section--dark-secondary {
  background-color: var(--bg-dark-secondary);
  color: var(--text-on-dark-primary);
}

.section--dark-secondary .section-label,
.section--dark-secondary .chapter-label {
  color: var(--text-label);
}

.section--dark-secondary .section-title,
.section--dark-secondary h1,
.section--dark-secondary h2,
.section--dark-secondary h3 {
  color: var(--text-on-dark);
}

/* ── Page hero (hub pages) ───────────────────────────────────── */

.page-hero {
  position: relative;
  min-height: 56vh;
  display: grid;
  align-items: end;
  overflow: clip;
  background-color: var(--bg-dark-secondary);
}

.page-hero__bg {
  position: absolute;
  inset: 0;
}

.page-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--hero-object-position, 50% 50%);
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to right,
      rgba(19, 24, 31, 0.84) 0%,
      rgba(19, 24, 31, 0.58) 38%,
      rgba(19, 24, 31, 0.18) 68%,
      rgba(19, 24, 31, 0.00) 100%
    );
}

.page-hero--overlay-low .page-hero__overlay {
  background:
    linear-gradient(
      to right,
      rgba(19, 24, 31, 0.72) 0%,
      rgba(19, 24, 31, 0.46) 38%,
      rgba(19, 24, 31, 0.14) 68%,
      rgba(19, 24, 31, 0.00) 100%
    );
}

.page-hero--overlay-high .page-hero__overlay {
  background:
    linear-gradient(
      to right,
      rgba(19, 24, 31, 0.92) 0%,
      rgba(19, 24, 31, 0.68) 38%,
      rgba(19, 24, 31, 0.22) 68%,
      rgba(19, 24, 31, 0.00) 100%
    );
}

.page-hero__inner {
  position: relative;
  padding-block: var(--section-pad-lg);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-family: var(--font-body);
  font-size: 0.95rem; /* match .chapter-label */
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--accent);
}

.breadcrumbs a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--duration-instant) var(--ease-default);
}

.breadcrumbs a:hover {
  color: var(--color-white);
}

.breadcrumbs__sep {
  opacity: 0.6;
}

.page-hero__title {
  color: var(--text-on-dark);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-regular);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
  -webkit-font-smoothing: subpixel-antialiased;
  -moz-osx-font-smoothing: auto;
}

.page-hero__subtitle {
  margin-top: var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: var(--weight-light);
  line-height: var(--leading-relaxed);
  color: var(--text-on-dark-muted);
}

/* ── 2-column grid ───────────────────────────────────────────── */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
}

/* ── Section divider ─────────────────────────────────────────── */

.divider {
  border: none;
  border-top: var(--border-width) solid var(--border-standard);
  margin: var(--space-12) 0;
}

.divider--gold {
  border-color: var(--border-gold);
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}