/* Category Detail Page Styles */

/* Added CSS custom properties for advanced mobile responsiveness */
:root {
  --color-black: #000;
  --color-white: #fff;
  --color-gray: #666;
  --color-light-gray: #ccc;
  --color-bg: #f5f5f5;
  --color-accent: #ff4cfa;

  --spacing-xs: 8px;
  --spacing-sm: 15px;
  --spacing-md: 20px;
  --spacing-lg: 40px;
  --spacing-xl: 60px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  --border-width: 2px;
  --border-width-thick: 3px;
}

/* Category Hero */
.category-hero {
  padding: 80px 0 40px;
  background: var(--color-white);
  border-bottom: var(--border-width-thick) solid var(--color-black);
}

.category-title {
  /* Using clamp() for fluid typography */
  font-size: clamp(36px, 8vw, 72px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -2px;
  margin: 0;
  color: var(--color-black);
  text-align: center;
  line-height: 1.1;
}

/* Articles Grid - 2 columns, repeating pattern 2-2-1 (5 items cycle) */
.category-articles {
  padding: 0;
  margin: 0;
  background: var(--color-white);
  width: 100%;
  max-width: 100%;
  /* Added overflow hidden to prevent horizontal scroll */
  overflow-x: hidden;
  padding-top: var(--spacing-lg); /* add space above the grid */
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  grid-auto-rows: auto;
  margin-bottom: 0; /* ensure grid has no extra bottom margin */
}

/* Each regular article: half-width column */
.grid-article {
  width: 100%;
  height: 50vh;
  min-height: 50vh;
  max-height: 50vh;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Full-width article spans both columns when needed (last odd item) */
.grid-article-large {
  grid-column: 1 / -1;
  height: 50vh;
  min-height: 50vh;
  max-height: 50vh;
}

/* Ensure consistent presentation for article card */
.article-card {
  display: flex;
  height: 100%;
  width: 100%;
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition-normal);
  overflow: hidden;
  /* Added touch optimization */
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.article-card:hover {
  opacity: 0.95;
}

/* Added active state for touch devices */
.article-card:active {
  opacity: 0.9;
}

/* Text panel with colored background (50% of article) */
.article-text-panel {
  flex: 1;
  width: 50%;
  height: 100%;
  padding: var(--spacing-xl) 50px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--spacing-md);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  box-sizing: border-box;
}

/* Header section for title/subtitle at top */
.article-header {
  flex-shrink: 0;
}

/* Added article title styles */
.article-title {
  /* Using clamp() for fluid typography */
  font-size: clamp(12px, 4vw, 24px);
  font-weight: 900;
  line-height: 1.1;
  margin: 0;
  color: inherit;
  text-transform: none;
  letter-spacing: -1px;
  /* Added text rendering optimization */
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtitle under title */
.article-subtitle {
  margin: var(--spacing-xs) 0 0;
  /* Using clamp() for fluid typography */
  font-size: clamp(16px, 1.5vw, 18px);
  font-weight: 800;
  color: inherit;
  opacity: 0.95;
  line-height: 1.15;
}

/* Footer section for excerpt/author anchored to bottom */
.article-footer {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: auto;
}

/* ensure excerpt doesn't add extra top margin */
.article-excerpt {
  margin: 0;
  /* Using clamp() for fluid typography */
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.5;
  color: inherit;
  font-weight: 500;
  opacity: 0.95;
}

.article-author {
  /* Using clamp() for fluid typography */
  font-size: clamp(12px, 1vw, 14px);
  font-weight: 700;
  color: inherit;
  margin: 0;
  margin-top: auto;
}

/* Image fills 50% width and 100% height */
.article-image {
  flex: 1;
  width: 50%;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg);
  position: relative;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  /* Added image rendering optimization */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

/* Pagination */
.pagination {
  margin: var(--spacing-xl) auto var(--spacing-md) auto; /* smaller bottom gap */
  padding: var(--spacing-md) 0;
  border-top: var(--border-width) solid var(--color-black);
  max-width: 1200px;
}

.pagination ul {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
  padding: 0;
  margin: 0;
}

.pagination li {
  font-weight: 700;
  font-size: 16px;
}

.pagination a {
  color: var(--color-black);
  text-decoration: none;
  padding: var(--spacing-xs) 16px;
  border: var(--border-width) solid var(--color-black);
  transition: all var(--transition-fast);
  /* Added touch optimization */
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pagination a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* Added active state for touch devices */
.pagination a:active {
  transform: scale(0.95);
}

.pagination .disabled {
  color: var(--color-light-gray);
  padding: var(--spacing-xs) 16px;
  border: var(--border-width) solid var(--color-light-gray);
}

.pagination .page-info {
  font-weight: 600;
  color: var(--color-gray);
}

/* No Articles */
.no-articles {
  text-align: center;
  font-size: 18px;
  color: var(--color-gray);
  padding: var(--spacing-xl) 0;
}

/* Tablet breakpoint - single column with side-by-side layout */
@media (max-width: 1023px) and (min-width: 768px) {
  .articles-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .grid-article,
  .grid-article-large {
    grid-column: 1;
    height: 60vh;
    min-height: 60vh;
    max-height: 60vh;
  }

  .article-text-panel {
    padding: var(--spacing-lg) 30px;
  }

  .article-title {
    font-size: clamp(18px, 5vw, 36px);
  }
}

/* Mobile breakpoint - single column with vertical stack */
@media (max-width: 767px) {
  .category-hero {
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  }

  .articles-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .category-articles {
    padding: 20px 0 0;
    margin: 0;
  }

  /* Mobile cards now 70svh to create peek effect (70% visible, 30% of next card peeks) */
  .grid-article,
  .grid-article-large {
    grid-column: 1;
    height: 70svh;
    min-height: 70svh;
    max-height: 70svh;
  }

  /* Stack image on top, text below */
  .article-card {
    flex-direction: column;
    height: 100%;
  }

  /* Image takes 60% of card height (top) */
  .article-image {
    order: 1;
    width: 100%;
    height: 60%;
    min-height: 60%;
    flex: 0 0 60%;
  }

  /* Text panel takes 40% of card height (bottom) */
  .article-text-panel {
    order: 2;
    padding: var(--spacing-md) var(--spacing-md);
    padding-left: max(var(--spacing-md), env(safe-area-inset-left));
    padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    width: 100%;
    height: 40%;
    min-height: 40%;
    flex: 0 0 40%;
  }

  .article-title {
    font-size: clamp(18px, 4vw, 24px);
  }

  .article-subtitle {
    font-size: clamp(12px, 2.5vw, 14px);
  }

  .article-excerpt {
    font-size: clamp(11px, 2vw, 13px);
  }

  .pagination {
    margin: var(--spacing-lg) var(--spacing-md);
    padding: var(--spacing-md) 0;
  }

  .pagination ul {
    gap: var(--spacing-sm);
    flex-wrap: wrap;
  }

  .pagination a {
    padding: 10px 14px;
    font-size: 14px;
  }
}

/* Small mobile optimization */
@media (max-width: 480px) {
  /* Maintain vertical stack with adjusted padding */
  .article-text-panel {
    padding: var(--spacing-sm) 12px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    width: 100%;
    height: 40%;
    min-height: 40%;
    flex: 0 0 40%;
  }

  .article-image {
    width: 100%;
    height: 60%;
    min-height: 60%;
    flex: 0 0 60%;
  }

  .article-title {
    font-size: clamp(16px, 4.5vw, 20px);
  }

  .pagination a {
    padding: 8px 12px;
    font-size: 13px;
  }
}

/* Accessibility - Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Accessibility - High contrast mode support */
@media (prefers-contrast: high) {
  .article-card {
    border: 1px solid currentColor;
  }

  .pagination a {
    border-width: 3px;
  }
}