styles/design-system/base/layout.css

/* Layout Utilities and Helpers */

/* Container system */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--container-padding, 1rem);
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
    padding-inline: 1.5rem;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
    padding-inline: 2rem;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

/* Layout patterns */
.layout-grid {
  display: grid;
  gap: var(--gap, 1rem);
}

.layout-flex {
  display: flex;
  gap: var(--gap, 1rem);
}

/* Common grid patterns */
.grid-cols-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(var(--min-width, 250px), 1fr));
}

.grid-cols-auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(var(--min-width, 250px), 1fr));
}

/* Sidebar layouts */
.layout-sidebar {
  display: grid;
  grid-template-columns: var(--sidebar-width, 260px) 1fr;
  gap: var(--gap, 2rem);
  align-items: start;
}

@media (max-width: 1024px) {
  .layout-sidebar {
    grid-template-columns: 1fr;
  }
}

/* Stack layouts */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--gap, 1rem);
}

.stack-horizontal {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--gap, 1rem);
}

/* Cluster layout */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap, 1rem);
  align-items: center;
}

/* Center layout */
.center {
  display: grid;
  place-items: center;
  min-height: var(--min-height, 100vh);
}

/* Cover layout */
.cover {
  display: flex;
  flex-direction: column;
  min-height: var(--min-height, 100vh);
}

.cover > * {
  margin-block: 1rem;
}

.cover > :first-child:not(.centered) {
  margin-block-start: 0;
}

.cover > :last-child:not(.centered) {
  margin-block-end: 0;
}

.cover > .centered {
  margin-block: auto;
}

/* Switcher layout (switches from horizontal to vertical) */
.switcher {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap, 1rem);
}

.switcher > * {
  flex-grow: 1;
  flex-basis: calc((var(--threshold, 30rem) - 100%) * 999);
}

/* Frame layout (for aspect ratios) */
.frame {
  aspect-ratio: var(--ratio, 16 / 9);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.frame > img,
.frame > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Reel layout (horizontal scroll) */
.reel {
  display: flex;
  gap: var(--gap, 1rem);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.reel::-webkit-scrollbar {
  display: none;
}

.reel > * {
  flex: 0 0 auto;
}

/* Full bleed */
.full-bleed {
  width: 100vw;
  margin-inline: calc(50% - 50vw);
}

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

/* Skip to content link */
.skip-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 999;
  padding: 0.5rem 1rem;
  background-color: var(--accent-black);
  color: var(--white);
  text-decoration: none;
  border-radius: 0.25rem;
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.2s, transform 0.2s;
}

.skip-link:focus {
  opacity: 1;
  transform: translateY(0);
}