/* DearDhruv Layout & Surface Primitives (WCAG 2.2 AA) */

:root {

  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --section-gap: clamp(2.5rem, 6vw, 4.5rem);

  --width-reading: 72ch;
  --width-default: 1080px;
  --width-wide: var(--container-wide);
  --page-gutter: var(--gutter);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

.layout-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.layout-shell > main {
  flex: 1 0 auto;
}

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

.layout-container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
  box-sizing: border-box;
}

.layout-container-reading {
  width: 100%;
  max-width: var(--width-reading);
  margin-inline: auto;
  padding-inline: var(--gutter);
  box-sizing: border-box;
}

.layout-section {
  padding-block: var(--section-gap);
  border-bottom: 1px solid var(--color-divider);
}

.layout-section:last-of-type {
  border-bottom: none;
}

.layout-stack {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.layout-stack > * + * {
  margin-top: var(--stack-gap, var(--space-4));
}

.layout-stack-sm > * + * { --stack-gap: var(--space-2); }
.layout-stack-md > * + * { --stack-gap: var(--space-4); }
.layout-stack-lg > * + * { --stack-gap: var(--space-6); }
.layout-stack-xl > * + * { --stack-gap: var(--space-8); }

.layout-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cluster-gap, var(--space-2));
  align-items: center;
}

.layout-cluster-between {
  justify-content: space-between;
}

.layout-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--grid-gap, var(--space-6));
}

.layout-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--grid-gap, var(--space-6));
}

@media (max-width: 640px) {
  .layout-grid-2,
  .layout-grid-3 {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

.layout-media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-surface-subtle);
  border: 1px solid var(--color-border-subtle);
}

.layout-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}