/* ============================================================================
   layout.css – Layout Primitives & Utilities
   ============================================================================ */

/* === Container === */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-wide {
  max-width: var(--content-max-wide);
}

@media (min-width: 1024px) {
  .container,
  .container-wide {
    padding: 0 var(--space-12);
  }
}

/* === Stack: vertical rhythm === */
.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); }
.stack-8  { gap: var(--space-8); }
.stack-10 { gap: var(--space-10); }
.stack-12 { gap: var(--space-12); }

/* === Row: horizontal flex === */
.row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.row-1 { gap: var(--space-1); }
.row-2 { gap: var(--space-2); }
.row-3 { gap: var(--space-3); }
.row-4 { gap: var(--space-4); }
.row-6 { gap: var(--space-6); }

.row-wrap { flex-wrap: wrap; }
.row-between { justify-content: space-between; }
.row-end { justify-content: flex-end; }
.row-stretch { align-items: stretch; }

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

/* === Grid: responsive auto-fit === */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-1 { grid-template-columns: 1fr; }
.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: 900px) {
  .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;
  }
}

/* === Section: padded vertical block === */
.section {
  padding: var(--space-12) 0;
}

.section-sm { padding: var(--space-8) 0; }
.section-lg { padding: var(--space-16) 0; }

/* === Page padding === */
.page {
  padding: var(--space-8) 0 var(--space-16);
}

/* === Section Header (h1 + p) === */
.section-header {
  padding: var(--space-10) var(--space-6) var(--space-6);
  max-width: var(--content-max);
  margin: 0 auto;
  width: 100%;
}

.section-header h1 {
  margin-bottom: var(--space-3);
}

.section-header p {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  max-width: 56ch;
  line-height: var(--leading-relaxed);
}

@media (min-width: 1024px) {
  .section-header {
    padding: var(--space-16) var(--space-12) var(--space-8);
  }
}

/* === Section Heading (h2 + p, kleiner) === */
.section-heading {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) var(--space-3);
  width: 100%;
}

.section-heading h2 {
  margin-bottom: var(--space-2);
}

.section-heading p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* === Visually hidden helper === */
[hidden] { display: none !important; }