/* ==========================================================================
   Single Post Styles - blog.css
   Loaded on singular post pages (single.php)
   Depends on style.css for CSS custom properties (design tokens)
   ========================================================================== */

/* ==========================================================================
   Single Post Hero - Background Image + Overlay
   ========================================================================== */

.single-hero {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 400px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.single-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.single-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.85) 100%);
}

.single-hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
  padding: 3rem 0;
}

.single-hero-tag {
  display: inline-block;
  margin-bottom: 1rem;
}

.single-hero-title {
  font-family: var(--font-headline);
  font-size: var(--text-headline-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: #ffffff;
  margin-bottom: 1rem;
  max-width: 800px;
}

.single-hero-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-headline);
  font-size: var(--text-label-sm);
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-wrap: wrap;
}

.single-hero-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  flex-shrink: 0;
}

/* ==========================================================================
   Single Post Content Grid
   ========================================================================== */

.single-content-section {
  padding: var(--spacing-section-padding) 0;
}

.single-grid {
  display: grid;
  grid-template-columns: 1fr var(--spacing-sidebar-width);
  gap: var(--spacing-gutter);
  align-items: start;
}

/* ==========================================================================
   Single Article Body
   ========================================================================== */

.single-article {
  max-width: none;
}

.single-article p {
  font-size: var(--text-body-lg);
  line-height: 1.7;
  color: var(--color-on-surface);
  margin-bottom: 1.5rem;
}

.single-article h2 {
  font-family: var(--font-headline);
  font-size: var(--text-headline-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.single-article h3 {
  font-family: var(--font-headline);
  font-size: var(--text-headline-md);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.single-article ul,
.single-article ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.single-article ul {
  list-style: disc;
}

.single-article ol {
  list-style: decimal;
}

.single-article li {
  margin-bottom: 0.5rem;
  font-size: var(--text-body-lg);
  line-height: 1.7;
}

.single-article blockquote {
  background-color: var(--color-surface-container-low);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
  padding: 2rem 2rem 2rem 2.5rem;
  margin: 2.5rem 0;
  font-style: italic;
  color: var(--color-primary);
  font-weight: 500;
  font-size: var(--text-body-lg);
  line-height: 1.7;
}

.single-article img {
  border-radius: var(--radius-xl);
  margin: 2rem 0;
}

/* ==========================================================================
   TL;DR Box - Auto-highlighted first h2 + paragraph
   ========================================================================== */

.single-article h2:first-of-type {
  margin-left: 1.5rem;
  margin-bottom: 0;
}

.single-article h2:first-of-type + p {
  background-color: var(--color-surface-container-low);
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
  padding: 1.5rem 2rem 1.5rem 2.5rem;
  margin-bottom: 2rem;
  font-size: var(--text-body-lg);
  line-height: 1.6;
  position: relative;
}

.single-article h2:first-of-type + p::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #002444, #B91C1C);
}

/* ==========================================================================
   Author Bio Box - Two Column Design
   ========================================================================== */

.author-bio {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
  margin-top: 3rem;
  padding: 2rem;
  background-color: var(--color-surface-container-low);
  border-left: none;
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
  position: relative;
}

.author-bio::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #002444, #B91C1C);
}

.author-bio-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.author-bio-avatar {
  margin-bottom: 0.75rem;
}

.author-bio-img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
}

.author-bio-label {
  font-family: var(--font-label);
  font-size: 11px;
  color: var(--color-muted-steel);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.author-bio-name {
  font-family: var(--font-headline);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
  line-height: 1.2;
}

.author-bio-title {
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  color: var(--color-muted-steel);
  margin: 0;
}

.author-bio-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.author-bio-text {
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-on-surface);
  margin: 0;
}

.author-bio-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 500;
  color: var(--color-crimson-bold);
  text-decoration: none;
  transition: gap 0.2s ease;
}

.author-bio-link:hover {
  gap: 0.5rem;
}

.author-bio-arrow {
  font-size: 1.1em;
  line-height: 1;
}

/* Responsive */
@media (max-width: 768px) {
  .author-bio {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .author-bio-left {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
  }
  
  .author-bio-avatar {
    margin-bottom: 0;
  }
}

/* ==========================================================================
   Single Sidebar
   ========================================================================== */

.single-sidebar {
  position: sticky;
  top: 5rem;
}

.sidebar-related {
  /* No background box — cleaner look matching Stitch */
}

.sidebar-related-heading {
  font-family: var(--font-headline);
  font-size: var(--text-headline-md);
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: 1.5rem;
  width: fit-content;
}

.sidebar-related-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-related-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.sidebar-related-card:hover {
  opacity: 0.85;
}

.sidebar-related-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sidebar-related-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.sidebar-related-card:hover .sidebar-related-img {
  transform: scale(1.05);
}

.sidebar-related-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidebar-related-tag {
  font-family: var(--font-label);
  font-size: 10px;
  color: var(--color-crimson-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-related-title {
  font-family: var(--font-headline);
  font-size: var(--text-body-md);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 0;
  transition: color 0.2s ease;
}

.sidebar-related-card:hover .sidebar-related-title {
  color: var(--color-crimson-bold);
}

.sidebar-related-date {
  font-family: var(--font-label);
  font-size: 11px;
  color: var(--color-muted-steel);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Single Post - Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .single-grid {
    grid-template-columns: 1fr;
  }

  .single-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .single-hero {
    height: 40vh;
    min-height: 320px;
  }

  .single-hero-title {
    font-size: var(--text-headline-lg);
  }

  .single-hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .single-hero-dot {
    display: none;
  }
}