/* Layout: containers, grid, section spacing */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

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

/* Sections */
.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

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

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

.section--primary p {
  color: rgba(255, 255, 255, 0.85);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-12);
}

.section__header p {
  margin-top: var(--space-4);
  font-size: var(--font-size-lg);
}

/* Scroll target offset for fixed nav */
.section[id] {
  scroll-margin-top: calc(var(--nav-height) + var(--space-4));
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-8);
}

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

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

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

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

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

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

.flex--gap-2 {
  gap: var(--space-2);
}

.flex--gap-4 {
  gap: var(--space-4);
}

.flex--gap-6 {
  gap: var(--space-6);
}

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

/* Main content offset for fixed nav */
main {
  padding-top: var(--nav-height);
}

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

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

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }

  .grid--3 {
    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);
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}