/**
 * SwiftPress Layout CSS
 * Container, Grid, Page Structure
 *
 * Performance: CSS Grid over JS-driven layouts.
 * Fluid containers via clamp() eliminate most breakpoints.
 */

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

.sp-container--narrow  { max-width: var(--container-md); }
.sp-container--full    { max-width: none; }

/* ─── Site Structure ─────────────────────────────────────────────── */
.sp-site {
  display: flex;
  flex-direction: column;
  min-height: 100svh;
}

.sp-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 64px;
}

.sp-site-content {
  flex: 1;
  padding-block: var(--space-12);
}

.sp-site-footer {
  background: var(--color-bg-alt);
  border-top: var(--border-width) solid var(--color-border);
  padding-block: var(--space-12);
}

/* ─── Content + Sidebar Layout ──────────────────────────────────── */
.sp-content-area {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: start;
}

/* Sidebar layout — only when sidebar has content */
.has-sidebar .sp-content-area {
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .has-sidebar .sp-content-area {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
  .sidebar-left .sp-content-area {
    grid-template-columns: 280px minmax(0, 1fr);
  }
  .sidebar-left .sp-primary {
    order: 2;
  }
  .sidebar-left .sp-sidebar {
    order: 1;
  }
}

/* ─── Archive / Blog Grid ────────────────────────────────────────── */
.sp-posts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

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

@media (min-width: 900px) {
  .sp-posts-grid--columns-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── Article / Single Post ─────────────────────────────────────── */
.sp-entry {
  /* Contain floats; isolate stacking context */
  display: flow-root;
}

.sp-entry-header {
  margin-bottom: var(--space-8);
}

.sp-entry-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.sp-entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.sp-entry-meta a {
  color: var(--color-text-muted);
}

.sp-entry-meta a:hover {
  color: var(--color-primary);
}

.sp-entry-content {
  /* Prose rhythm for Gutenberg content */
  --prose-gap: var(--space-6);
}

/* Gutenberg block spacing — replace block-spacing with CSS vars */
.sp-entry-content > * + * {
  margin-top: var(--prose-gap);
}

.sp-entry-content h2,
.sp-entry-content h3,
.sp-entry-content h4 {
  margin-top: calc(var(--prose-gap) * 1.5);
}

.sp-entry-footer {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: var(--border-width) solid var(--color-border);
}

/* ─── Featured Image ─────────────────────────────────────────────── */
.sp-post-thumbnail {
  margin-bottom: var(--space-8);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.sp-post-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Native lazy loading set in PHP template */
}

/* ─── Pagination ─────────────────────────────────────────────────── */
.sp-pagination {
  margin-top: var(--space-12);
}

.sp-pagination .nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.sp-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: var(--space-3);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  color: var(--color-text);
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.sp-pagination .page-numbers:hover,
.sp-pagination .page-numbers.current {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ─── Comments ───────────────────────────────────────────────────── */
.sp-comments {
  margin-top: var(--space-12);
}

.comment-list {
  list-style: none;
  padding: 0;
}

.comment-list .children {
  padding-left: var(--space-8);
  list-style: none;
  margin-top: var(--space-6);
}

.comment-body {
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--color-border);
  margin-bottom: var(--space-6);
}

.comment-author img {
  border-radius: var(--radius-full);
}

/* ─── 404 / Search ───────────────────────────────────────────────── */
.sp-not-found,
.sp-no-results {
  text-align: center;
  padding: var(--space-20) 0;
}

.sp-not-found h1 {
  font-size: clamp(5rem, 20vw, 12rem);
  line-height: 1;
  color: var(--color-border);
  margin-bottom: var(--space-4);
}

/* ─── Footer Grid ─────────────────────────────────────────────────── */
.sp-footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-10);
  margin-bottom: var(--space-10);
}

/* Explicit 4-column layout on wider screens */
@media (min-width: 900px) {
  .sp-footer-widgets--4col {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 640px) and (max-width: 899px) {
  .sp-footer-widgets--4col {
    grid-template-columns: repeat(2, 1fr);
  }
}

.sp-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: var(--border-width) solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}