/* ══════════════════════════════════════════════════════════════
   EnCube Labs — Layout Utilities & Grid System
   ══════════════════════════════════════════════════════════════ */

/* ── Page Wrapper ────────────────────────────────────────────── */
.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page__main {
  flex: 1;
  /* Offset for fixed navbar */
  padding-top: var(--navbar-height);
}

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

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

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

.container--full {
  max-width: none;
}

/* ── Section Spacing ─────────────────────────────────────────── */
.section {
  padding-top: var(--section-pad-y);
  padding-bottom: var(--section-pad-y);
}

.section--sm {
  padding-top: var(--section-pad-y-sm);
  padding-bottom: var(--section-pad-y-sm);
}

.section--lg {
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-5xl);
}

/* Asset slots — sized for future images/logos without oversized empty boxes */
.media-slot {
  position: relative;
  overflow: hidden;
  background-color: var(--color-surface-cool);
  border: 1px dashed var(--color-border);
}

.media-slot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-slot--logo {
  aspect-ratio: 3 / 2;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background-color: var(--color-surface);
}

.media-slot--logo img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 56px;
  object-fit: contain;
}

.media-slot--portrait {
  aspect-ratio: 4 / 5;
}

.media-slot--wide {
  aspect-ratio: 16 / 9;
}

.media-slot--square {
  aspect-ratio: 1;
}

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

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

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

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

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

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

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

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

/* Responsive grids default to 1 column on mobile */
@media (max-width: 767px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Flexbox Utilities ───────────────────────────────────────── */
.flex {
  display: flex;
}

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

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

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

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

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

.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);
}

/* ── Text Alignment ──────────────────────────────────────────── */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

/* ── Auto-center children ────────────────────────────────────── */
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* ── Visually Hidden (accessible) ────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Image Placeholder Container ─────────────────────────────── */
.placeholder-image {
  background-color: var(--color-surface-cool);
  border: 2px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.placeholder-image__label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  text-align: center;
  padding: var(--space-md);
  line-height: var(--leading-snug);
}

/* Common aspect ratios for placeholders */
.placeholder-image--16x9 {
  aspect-ratio: 16 / 9;
}

.placeholder-image--4x3 {
  aspect-ratio: 4 / 3;
}

.placeholder-image--1x1 {
  aspect-ratio: 1 / 1;
}

.placeholder-image--3x2 {
  aspect-ratio: 3 / 2;
}

.section--dark .media-section__title,
.framework-video-band .media-section__title {
  color: var(--color-dark-text);
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header--center {
  text-align: center;
}

.section-header .section-title {
  margin-bottom: var(--space-md);
}