/*
 * Blog Posts by Category page template
 * Modern, sidebar-free card grid with pagination.
 */

.bu-blog-page {
  --bu-accent: #192f59;
  --bu-accent-2: #2f5bb7;
  --bu-ink: #0f1b2d;
  --bu-muted: #5b6678;
  --bu-line: #e3e8f0;
  --bu-surface: #ffffff;
  --bu-bg: #f5f7fb;
  --bu-radius: 18px;

  background: var(--bu-bg);
  padding: 56px 0 72px;
}

.bu-blog-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.bu-blog-intro {
  max-width: 760px;
  margin: 0 auto 40px;
  text-align: center;
  color: var(--bu-muted);
  font-size: 18px;
  line-height: 1.7;
}

/* ---------- Grid ---------- */
.bu-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

/* ---------- Card ---------- */
.bu-blog-card {
  display: flex;
  flex-direction: column;
  background: var(--bu-surface);
  border: 1px solid var(--bu-line);
  border-radius: var(--bu-radius);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(15, 27, 45, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.bu-blog-card:hover,
.bu-blog-card:focus-within {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: 0 18px 40px rgba(25, 47, 89, 0.16);
}

.bu-blog-card__media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bu-line);
}

.bu-blog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.bu-blog-card:hover .bu-blog-card__media img {
  transform: scale(1.06);
}

.bu-blog-card__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--bu-accent) 0%, var(--bu-accent-2) 100%);
}

.bu-blog-card__placeholder span {
  font-size: 64px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1;
}

.bu-blog-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 22px 24px 20px;
}

.bu-blog-page .bu-blog-card .bu-blog-card__title {
  margin: 0 0 8px;
  padding: 0;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

.bu-blog-page .bu-blog-card__title a {
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  color: var(--bu-ink);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 2px;
  transition: background-size 0.3s ease, color 0.2s ease;
}

.bu-blog-card:hover .bu-blog-card__title a {
  color: var(--bu-accent);
  background-size: 100% 2px;
}

.bu-blog-card__excerpt {
  margin: 0 0 20px;
  color: var(--bu-muted);
  font-size: 15px;
  line-height: 1.65;
}

.bu-blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--bu-line);
}

.bu-blog-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--bu-muted);
  font-size: 13px;
}

.bu-blog-card__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--bu-accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.bu-blog-card__more svg {
  transition: transform 0.2s ease;
}

.bu-blog-card__more:hover svg {
  transform: translateX(4px);
}

/* ---------- Featured (latest post) ---------- */
.bu-blog-card--featured {
  grid-column: 1 / -1;
  flex-direction: row;
}

.bu-blog-card--featured .bu-blog-card__media {
  flex: 1 1 55%;
  aspect-ratio: auto;
  min-height: 360px;
}

.bu-blog-card--featured .bu-blog-card__body {
  flex: 1 1 45%;
  justify-content: center;
  padding: 40px 44px;
}

.bu-blog-page .bu-blog-card--featured .bu-blog-card__title {
  font-size: 24px;
  line-height: 1.3;
  margin-bottom: 12px;
  -webkit-line-clamp: 3;
  line-clamp: 3;
}

.bu-blog-card--featured .bu-blog-card__excerpt {
  font-size: 15.5px;
  margin-bottom: 26px;
}

.bu-blog-card--featured .bu-blog-card__footer {
  margin-top: 0;
}

/* ---------- Pagination ---------- */
.bu-blog-pagination {
  margin-top: 56px;
}

.bu-blog-pagination ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bu-blog-pagination li {
  margin: 0;
}

.bu-blog-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 0;
  background: none;
  box-shadow: none;
  color: var(--bu-muted);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}

.bu-blog-pagination a.page-numbers:hover {
  color: var(--bu-accent);
}

.bu-blog-pagination .page-numbers.current {
  color: var(--bu-accent);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 8px;
}

/* ---------- Empty state ---------- */
.bu-blog-empty {
  max-width: 480px;
  margin: 24px auto;
  padding: 56px 32px;
  text-align: center;
  background: var(--bu-surface);
  border: 1px dashed var(--bu-line);
  border-radius: var(--bu-radius);
  color: var(--bu-muted);
}

.bu-blog-empty svg {
  color: var(--bu-accent-2);
  margin-bottom: 12px;
}

.bu-blog-empty h2 {
  margin: 0 0 8px;
  color: var(--bu-ink);
  font-size: 22px;
}

.bu-blog-empty p {
  margin: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .bu-blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .bu-blog-card--featured .bu-blog-card__body {
    padding: 28px;
  }

  .bu-blog-page .bu-blog-card--featured .bu-blog-card__title {
    font-size: 21px;
  }
}

@media (max-width: 720px) {
  .bu-blog-page {
    padding: 36px 0 52px;
  }

  .bu-blog-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .bu-blog-card--featured {
    flex-direction: column;
  }

  .bu-blog-card--featured .bu-blog-card__media {
    flex: none;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .bu-blog-card--featured .bu-blog-card__body {
    padding: 22px 24px 20px;
  }

  .bu-blog-page .bu-blog-card--featured .bu-blog-card__title {
    font-size: 19px;
  }

  .bu-blog-pagination .bu-blog-pagination__label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bu-blog-card,
  .bu-blog-card__media img,
  .bu-blog-card__more svg,
  .bu-blog-pagination .page-numbers {
    transition: none;
  }

  .bu-blog-card:hover,
  .bu-blog-card:hover .bu-blog-card__media img {
    transform: none;
  }
}