/* ============================================================
   LAYOUT.CSS — Grid, Containers, Section Spacing
   Skymin Design System · skym.in
   ============================================================ */

/* --- Container -------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-8);
  }
}

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

/* Narrow container for text-heavy sections */
.container--narrow {
  max-width: var(--container-md);
}

/* --- Section ---------------------------------------------- */
.section {
  padding-block: var(--space-20);
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--space-24);
  }
}

/* Alternating section backgrounds */
.section--surface {
  background-color: var(--color-surface);
}

.section--dark {
  background-color: var(--color-bg);
}

/* --- Section Number Label --------------------------------- */
.section__number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--space-4);
}

/* --- Section Header --------------------------------------- */
.section__header {
  margin-bottom: var(--space-12);
}

.section__headline {
  margin-bottom: var(--space-4);
}

.section__subheadline {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  max-width: 56ch;
}

@media (min-width: 1024px) {
  .section__subheadline {
    font-size: var(--text-lg);
  }
}

/* --- Grid Utilities --------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Split Layout (text + visual, side by side) ----------- */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

/* --- Flex Utilities --------------------------------------- */
.flex {
  display: flex;
}

.flex--wrap {
  flex-wrap: wrap;
}

.flex--col {
  flex-direction: column;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  justify-content: space-between;
}

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --- Text Utilities --------------------------------------- */
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-sm { font-size: var(--text-sm); }
.text-mono { font-family: var(--font-mono); }

/* Max-width for readable text */
.max-prose {
  max-width: 64ch;
}