/**
 * Layout Styles — New Super Photography
 * Source of truth: DESIGN_SYSTEM.md & ARCHITECTURE.md
 */

/* Main Containers */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-gutter);
  padding-right: var(--container-gutter);
}

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

.container--wide {
  max-width: 1400px;
}

/* Sections */
.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  position: relative;
}

.section--sm {
  padding-top: calc(var(--section-padding-y) * 0.6);
  padding-bottom: calc(var(--section-padding-y) * 0.6);
}

.section--hero {
  padding-top: 0;
  padding-bottom: var(--section-padding-y);
}

/* Surfaces / Background themes */
.surface-dark {
  background-color: var(--color-black);
  color: var(--color-white);
}

.surface-dark .lead {
  color: var(--color-muted-on-dark);
}

.surface-dark a:hover {
  color: var(--color-gold);
}

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

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

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

/* Section Header pattern */
.section-header {
  margin-bottom: var(--space-8);
}

.section-header--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  max-width: 720px;
}

.section-header--split {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .section-header--split {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--space-12);
  }
}

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

/* 2-column grid */
.grid--2col {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid--2col {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

/* 3-column grid */
.grid--3col {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--3col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--3col {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

/* 4-column grid */
.grid--4col {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .grid--4col {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}

/* Split content & media (50/50 or 60/40) */
.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 768px) {
  .split-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }

  .split-layout--reversed > :first-child {
    order: 2;
  }
  .split-layout--reversed > :last-child {
    order: 1;
  }
}

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

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

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

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

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

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

.gap-lg {
  gap: var(--space-8);
}