/* ── Layout primitives — container, sections, grids, stacks. */

body {
  background: var(--color-bg-0);
  color: var(--color-text-1);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: var(--layout-max-w);
  margin-inline: auto;
  padding-inline: var(--space-container-x);
}

.container--narrow {
  max-width: var(--layout-narrow-w);
}

.section {
  padding-block: var(--space-section-y);
}

.section--tight {
  padding-block: calc(var(--space-section-y) * 0.6);
}

.section__heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
}

.section__eyebrow {
  font-size: var(--fs-xs);
  letter-spacing: var(--letter-wide);
  text-transform: uppercase;
  color: var(--color-text-3);
  font-weight: var(--fw-medium);
}

.section__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--letter-tight);
  line-height: var(--lh-snug);
  color: var(--color-text-1);
}

.section__lead {
  font-size: var(--fs-body);
  color: var(--color-text-2);
  max-width: 56ch;
}

/* Responsive grids */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 960px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* Vertical stack utility */
.stack { display: flex; flex-direction: column; }
.stack--1 { gap: var(--space-1); }
.stack--2 { gap: var(--space-2); }
.stack--3 { gap: var(--space-3); }
.stack--4 { gap: var(--space-4); }
.stack--5 { gap: var(--space-5); }
.stack--6 { gap: var(--space-6); }

/* Cluster (horizontal flex) */
.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

/* Visually hidden */
.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;
}