/* ============================================
   8-PAGE-SECTIONS.CSS
   
   Page-Specific Layout Components
   - Homepage Hero
   - Filtered Grid (Projects/Posts)
   - Post Navigation
   - Related Posts
   - List Views
   - Left Panel (Sidebar)
   - Dense Gallery Grid
   ============================================ */

/* ============================================
   1. HOMEPAGE HERO
   ============================================ */

.welcome-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at center, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
  margin-bottom: var(--space-xxl);
  padding: var(--space-xl) var(--space-md);
}

.hero-content {
  max-width: 800px;
  z-index: var(--z-base);
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-content p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 60ch;
  margin: 0 auto var(--space-lg);
}

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

.featured-section h2 {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

/* ============================================
   2. FILTERED GRID LAYOUT
   (Projects/Posts listings)
   ============================================ */

.filtered-grid-layout,
.post-grid {
  margin: var(--space-xl) 0;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .grid-container {
    grid-template-columns: 1fr;
  }
}

.grid-item {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: visible; /* Allow glow to extend */
  border: 1px solid var(--color-border-light);
  /* Synchronized transition timing */
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  will-change: transform, box-shadow;
}

/* Unified glow effect using pseudo-element */
.grid-item::before {
  content: '';
  position: absolute;
  inset: -1px; /* Extend to cover border */
  border-radius: calc(var(--radius-lg) + 1px); /* Match parent + border */
  background: transparent;
  box-shadow: none;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  pointer-events: none;
  z-index: -1;
}

.grid-item:hover,
.grid-item:focus-within {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.grid-item:hover::before,
.grid-item:focus-within::before {
  opacity: 1;
  /* Glow extends to bottom edge with proper spacing */
  box-shadow:
    0 0 0 1px var(--color-primary),
    0 20px 40px -8px rgba(var(--shadow-color), var(--alpha-15)),
    0 8px 16px -4px rgba(var(--shadow-color), var(--alpha-10));
}

@media (prefers-reduced-motion: reduce) {
  .grid-item:hover,
  .grid-item:focus-within {
    transform: none;
  }
  
  .grid-item::before {
    transition: none;
  }
}

.grid-item:focus-within {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.grid-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.grid-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  /* Clip image to container */
  isolation: isolate;
}

.grid-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Synchronized with container transition */
  transition: transform var(--duration-normal) var(--ease-out);
  will-change: transform;
}

/* Synchronized hover: image scales with container movement */
.grid-item:hover .grid-image img,
.grid-item:focus-within .grid-image img {
  transform: scale(1.05);
}

.grid-content {
  padding: var(--space-md);
}

.grid-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
  color: var(--color-text);
  line-height: 1.3;
}

.grid-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.grid-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.grid-more {
  text-align: center;
  margin-top: var(--space-xl);
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: gap var(--duration-fast);
}

.more-link:hover,
.more-link:focus-visible {
  gap: var(--space-sm);
}

.more-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   3. POST NAVIGATION (Prev/Next)
   ============================================ */

.post-nav {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

@media (min-width: 600px) {
  .post-nav {
    grid-template-columns: 1fr 1fr;
  }
}

.post-nav-prev,
.post-nav-next {
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color var(--duration-fast), background-color var(--duration-fast);
}

.post-nav-prev:hover,
.post-nav-prev:focus-visible,
.post-nav-next:hover,
.post-nav-next:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-bg-secondary);
}

.post-nav-prev:focus-visible,
.post-nav-next:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.post-nav-next {
  text-align: right;
  align-items: flex-end;
}

.post-nav-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.post-nav-title {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

/* ============================================
   4. RELATED POSTS
   ============================================ */

.related-posts {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
}

.related-posts__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.related-posts__title::before {
  content: '→';
  color: var(--color-primary);
  vertical-align: middle;
}

.related-posts__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-posts__list li {
  padding: var(--space-xs) 0;
  border-bottom: 1px dashed var(--color-border);
}

.related-posts__list li:last-child {
  border-bottom: none;
}

.related-posts__list a {
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color var(--duration-fast);
}

.related-posts__list a:hover,
.related-posts__list a:focus-visible {
  color: var(--color-primary);
}

.related-posts__list a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.related-posts__list a::before {
  content: '•';
  color: var(--color-primary);
}

/* ============================================
   5. LIST VIEWS (Posts/Projects)
   ============================================ */

.post-list,
.projects-list {
  margin: var(--space-xl) 0;
}

.post-preview,
.project-preview {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.post-preview:last-child,
.project-preview:last-child {
  border-bottom: none;
}

.post-preview__title,
.project-preview__title {
  margin-bottom: var(--space-sm);
}

.post-preview__title a,
.project-preview__title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.post-preview__title a:hover,
.project-preview__title a:hover {
  color: var(--color-primary);
}

.post-preview__excerpt,
.project-preview__excerpt {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  max-width: var(--content-max-width);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--text-sm);
  transition: gap var(--duration-fast);
}

.read-more:hover {
  gap: var(--space-sm);
}

/* ============================================
   6. LEFT PANEL (Sidebar)
   ============================================ */

.left-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  height: 100%;
  min-height: 100vh;
  padding: var(--space-lg);
  background-image: var(--panel-bg-image, none);
  background-color: var(--panel-bg-color, rgb(79, 177, 186));
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  color: rgb(var(--shadow-color-light));
  text-align: center;
}

/* Wrapper for centered content in left panel */
.left-panel__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  width: 100%;
}

.left-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(var(--shadow-color), var(--alpha-50));
  z-index: 0;
}

/* Gradient overlay for improved text legibility over images */
.left-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(var(--shadow-color), var(--alpha-30)) 0%,
    rgba(var(--shadow-color), var(--alpha-50)) 100%
  );
  z-index: 0;
}

.left-panel > * {
  position: relative;
  z-index: 1;
}

.left-panel__avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 3px solid rgba(var(--shadow-color-light), var(--alpha-50));
  margin-bottom: var(--space-md);
  object-fit: cover;
}

.left-panel__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: rgb(var(--shadow-color-light));
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.left-panel__title a {
  color: inherit;
  text-decoration: none;
}

.left-panel__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: rgba(var(--shadow-color-light), var(--alpha-50));
  margin: var(--space-md) auto 0;
}

.left-panel__tagline {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: rgba(var(--shadow-color-light), var(--alpha-80));
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.left-panel__nav {
  margin-bottom: var(--space-lg);
}

.left-panel__nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.left-panel__nav li {
  margin-bottom: var(--space-xs);
}

.left-panel__nav a {
  color: rgba(var(--shadow-color-light), var(--alpha-90));
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  padding: var(--space-xs) var(--space-sm);
  display: inline-block;
  transition: color var(--duration-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.left-panel__nav a:hover,
.left-panel__nav a.active {
  color: rgb(var(--shadow-color-light));
}

/* Glitch effect on sidebar nav hover */
.left-panel__nav a:hover {
  text-shadow: 2px 0 var(--color-primary), -2px 0 var(--color-secondary);
}

.left-panel__social {
  display: flex;
  flex-direction: row;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.left-panel__social .social-links-list {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.left-panel__social li {
  display: inline-flex;
}

.left-panel__social a {
  color: rgba(var(--shadow-color-light), var(--alpha-60));
  font-size: 1.2rem;
  transition: color var(--duration-fast);
  text-decoration: none;
}

.left-panel__social a:hover {
  color: rgb(var(--shadow-color-light));
}

/* ============================================
   7. POSTS LIST COMPONENT
   ============================================ */

.posts-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.posts-list__item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.posts-list__item:last-child {
  border-bottom: none;
}

.posts-list__date {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.posts-list__date::before,
.posts-list__date::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border-light);
}

.posts-list__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.posts-list__title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.posts-list__title a:hover {
  color: var(--color-primary);
}

.posts-list__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.posts-list__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* ============================================
   POSTS LIST IMAGE
   ============================================ */

.posts-list__image {
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  /* Position for pseudo-element effects */
  position: relative;
  /* Synchronized transition */
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  will-change: transform, box-shadow;
}

.posts-list__image a {
  display: block;
  text-decoration: none;
}

.posts-list__image img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  display: block;
  /* Synchronized transition timing */
  transition: transform var(--duration-normal) var(--ease-out);
  will-change: transform;
}

/* Synchronized hover: container and image together */
.posts-list__image:has(a:hover),
.posts-list__image:has(a:focus) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.posts-list__image a:hover img,
.posts-list__image a:focus img {
  transform: scale(1.03);
}

/* Responsive adjustments */
@media (min-width: 768px) {
  .posts-list__image img {
    max-height: 240px;
  }
}

/* ============================================
   8. BACKLINKS
   ============================================ */

.backlinks {
  margin-top: var(--space-xl);
  padding: var(--space-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-primary);
}

.backlinks__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.backlinks__title::before {
  content: '←';
  color: var(--color-primary);
}

.backlinks__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.backlinks__item {
  padding: var(--space-xs) 0;
  border-bottom: 1px dashed var(--color-border);
}

.backlinks__item:last-child {
  border-bottom: none;
}

.backlinks__link {
  color: var(--color-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color var(--duration-fast);
}

.backlinks__link:hover,
.backlinks__link:focus-visible {
  color: var(--color-primary);
}

.backlinks__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.backlinks__link::before {
  content: '•';
  color: var(--color-primary);
}

/* ============================================
   9. ABOUT PAGE
   ============================================ */

.about-page {
  max-width: var(--content-max-width);
}

.about-content {
  font-size: var(--text-base);
  line-height: 1.7;
}

.about-content p {
  margin-bottom: var(--space-md);
}

/* ============================================
   10. TOC (Table of Contents)
   Compact, better spacing
   ============================================ */

.toc {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-lg) 0;
  border: 1px solid var(--color-border-light);
}

.toc-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toc ul {
  list-style: none;
  padding-left: var(--space-sm);
  margin: 0;
  font-size: var(--text-xs);
}

.toc > ul {
  padding-left: 0;
}

.toc li {
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.toc a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-xs);
  display: block;
  padding: calc(var(--space-xs) / 2) 0;
  border-left: 2px solid transparent;
  padding-left: var(--space-sm);
  margin-left: calc(-1 * var(--space-sm));
  transition: border-color var(--duration-fast), color var(--duration-fast);
}

.toc a:hover,
.toc a:focus-visible {
  border-left-color: var(--color-primary);
  color: var(--color-primary);
}

.toc a:focus-visible {
  outline: none; /* Border serves as indicator */
}

/* ============================================
   11. DENSE GALLERY GRID (Masonry-lite)
   ============================================ */

.gallery-dense {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  grid-auto-rows: 200px;
  grid-auto-flow: dense;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.gallery-dense img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform var(--duration-normal);
  aspect-ratio: 16/9;
}

/* ============================================
   12. TAXONOMY PAGES (Tags, Categories)
   ============================================ */

/* --- Taxonomy List (for _default/taxonomy.html) --- */
.taxonomy-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-lg);
}

/* --- Tags Cloud (for tags/list.html) --- */
.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-lg);
}

/* --- Categories Cloud (for categories/list.html) --- */
.categories-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-lg);
}

/* --- Term Page Navigation --- */
.term-nav {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: var(--border-subtle);
}

.gallery-dense img:hover {
  transform: scale(1.02);
}

/* Spanning modifiers */
.gallery-item--wide { grid-column: span 2; }
.gallery-item--tall { grid-row: span 2; }
.gallery-item--big  { grid-column: span 2; grid-row: span 2; }

@media (max-width: 600px) {
  /* Reset spans on mobile */
  .gallery-item--wide,
  .gallery-item--tall,
  .gallery-item--big {
    grid-column: auto;
    grid-row: auto;
  }
}

/* ============================================
   13. FOOTER STYLES
   ============================================ */

.site-footer a {
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.site-footer img {
  display: inline-block;
  height: 22px;
  vertical-align: middle;
}

/* ============================================
   14. DARK MODE ENHANCEMENTS
   ============================================ */

[data-theme="dark"] .grid-item,
.dark-mode .grid-item {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
}

[data-theme="dark"] .grid-item:hover,
[data-theme="dark"] .grid-item:focus-within,
.dark-mode .grid-item:hover,
.dark-mode .grid-item:focus-within {
  box-shadow: var(--shadow-xl);
}

[data-theme="dark"] .welcome-hero,
.dark-mode .welcome-hero {
  background: radial-gradient(circle at center, var(--color-bg-tertiary) 0%, var(--color-bg) 100%);
}

[data-theme="dark"] .post-nav-prev,
[data-theme="dark"] .post-nav-next,
.dark-mode .post-nav-prev,
.dark-mode .post-nav-next {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
}

[data-theme="dark"] .posts-list__item,
.dark-mode .posts-list__item {
  background: var(--color-bg-secondary);
}