/**
 * @file
 * Page-level layout: containers, region placement, grid helpers.
 * Component-specific styling lives in components.css.
 */

/* Containers -------------------------------------------------------- */

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

.container--wide { max-width: var(--width-wide); }
.container--narrow { max-width: var(--width-narrow); }
.container--full { max-width: none; }

/* Page frame -------------------------------------------------------- */

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

.page__main {
  flex: 1 0 auto;
  padding-block: var(--space-xl);
}

.page__footer {
  flex-shrink: 0;
  margin-top: var(--space-2xl);
}

/* Content + sidebar ------------------------------------------------- */

.layout-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 62rem) {
  .layout-content--with-sidebar {
    grid-template-columns: minmax(0, 1fr) 18rem;
    gap: var(--space-2xl);
  }

  .layout-content--sidebar-first {
    grid-template-columns: 18rem minmax(0, 1fr);
  }

  .layout-content--sidebar-first .layout-content__main {
    order: 2;
  }
}

/* Long-form pages get a measure limit for readability. */
.layout-content__main--prose > * {
  max-width: var(--width-prose);
}

.layout-content__main--prose > .full-bleed {
  max-width: none;
}

/* Section rhythm ---------------------------------------------------- */

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

.section--tight { padding-block: var(--space-xl); }
.section--loose { padding-block: var(--space-3xl); }

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

.section--inverse h1,
.section--inverse h2,
.section--inverse h3 {
  color: var(--c-white);
}

.section--tint {
  background: var(--c-green-100);
}

/* Section heading with a rule that encodes hierarchy, not decoration. */
.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-2xs);
  border-bottom: 2px solid var(--color-brand);
}

.section__title {
  margin: 0;
}

.section__action {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
}

/* Grids ------------------------------------------------------------- */

.grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr));
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(22rem, 100%), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(13rem, 100%), 1fr)); }
.grid--gap-lg { gap: var(--space-lg); }

/* Stack utility — vertical rhythm without margin collapsing surprises. */
.stack > * + * {
  margin-top: var(--space-sm);
}

.stack--lg > * + * { margin-top: var(--space-lg); }
.stack--sm > * + * { margin-top: var(--space-2xs); }

/* Header ------------------------------------------------------------ */

.page__header {
  position: relative;
  z-index: var(--z-sticky);
  background: var(--color-bg-raised);
  border-bottom: var(--border-rule);
}

.header-top {
  background: var(--color-brand-strong);
  color: var(--color-text-inverse);
  font-size: var(--fs-xs);
}

.header-top__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  min-height: 2.25rem;
}

.header-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-sm);
}

/* Footer ------------------------------------------------------------ */

.footer-top {
  background: var(--color-bg-inverse);
  color: var(--color-text-inverse);
  padding-block: var(--space-2xl);
}

.footer-bottom {
  background: var(--c-green-900);
  color: var(--c-green-200);
  padding-block: var(--space-md);
  font-size: var(--fs-xs);
  border-top: 1px solid rgb(255 255 255 / 10%);
}

.footer-bottom__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}