/* ===========================================
   UTILITIES — Layout, spacing, a11y, motion
   =========================================== */

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-lg);
  position: relative;
  z-index: 1;
}

.container--narrow {
  max-width: 800px;
}

.container--mid {
  max-width: 900px;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--accent);
  color: var(--bg);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  z-index: 200;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-sm);
  outline: none;
}

/* Screen-reader 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;
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Mobile spacing overrides */
@media (max-width: 768px) {
  .container {
    padding: var(--space-md);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: clamp(32px, 10vw, 48px);
  }

  .page-header h1 {
    font-size: clamp(36px, 10vw, 56px);
  }
}