/* ==========================================================================
   LAYOUT — Wrappers, Sections & Grid Foundations
   Page-level structural patterns.
   ========================================================================== */

/* ---- Container ---- */
.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---- Sections ---- */
section {
  padding: var(--space-4xl) 0;
}

section.tint {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

/* ---- Skip to Content (Accessibility) ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--gutter);
  z-index: var(--z-top);
  padding: var(--space-xs) var(--space-sm);
  background: var(--gradient-brand);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-xs);
}

/* ---- Visually Hidden (screen readers only) ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Shared SVG sprite definitions (hidden, removed from flow) ---- */
.svg-defs {
  position: absolute;
}