/* layout.css */

/* Grid utilities */
.grid-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.grid-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 35px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

@media (max-width: 640px) {
  .grid-duo {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .grid-gallery {
    grid-template-columns: 1fr;
  }
}

/* Section spacing */
section {
  padding: 80px 0;
}

/* Main content */
main {
  flex: 1;
  position: relative;
  z-index: 1;
  background: var(--bg);
  min-height: 100vh;
}

/* Skip to content */
.skip-to-content {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  padding: 12px 20px;
  background-color: var(--accent);
  color: var(--bg);
  font-family: 'Instrument Sans', system-ui, sans-serif;
  font-weight: 600;
  font-size: var(--text-sm);
  transform: translateY(-100%);
  transition: transform 0.2s ease;
  border-radius: 0 0 6px 0;
}

.skip-to-content:focus {
  transform: translateY(0);
  outline: none;
}

/* Progress bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent);
  z-index: 999;
  pointer-events: none;
  transition: background-color var(--transition-color);
}

/* Visually hidden utility */
.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;
}

/* Focus visible styles */
*:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}