/* ============================================
   LAYOUT — Grid, Containers, Responsive
   ============================================ */

/* === CONTAINERS === */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

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

/* === SECTIONS === */
.section {
  position: relative;
  padding: var(--section-padding) 0;
  overflow: hidden;
}

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

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

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

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__label {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  font-family: var(--font-body);
}

.section__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.section__title span {
  color: var(--color-primary);
  font-family: var(--font-accent);
  font-style: italic;
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* === GRID === */
.grid {
  display: grid;
  gap: var(--space-xl);
  align-items: stretch;
}

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

.grid--auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* === FLEX === */
.flex {
  display: flex;
}

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

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

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

.flex--gap-sm { gap: var(--space-sm); }
.flex--gap-md { gap: var(--space-md); }
.flex--gap-lg { gap: var(--space-lg); }
.flex--gap-xl { gap: var(--space-xl); }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: clamp(3rem, 8vh, 5rem) 0;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }
}