/* ==========================================================================
   u.cash - Articles Section
   Blog/article preview cards with thumbnails, categories, and hover effects.
   ========================================================================== */

/* ---- Articles Section ---- */

.articles-section {
  position: relative;
  padding-block: var(--space-5xl);
  background: var(--color-bg-primary);
  overflow: hidden;
}

/* Background decoration */
.articles-section::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(
    circle,
    var(--color-gold-subtle) 0%,
    transparent 70%
  );
  pointer-events: none;
}

/* ---- Articles Header ---- */

.articles-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  margin-bottom: var(--space-2xl);
}

.articles-header-text {
  max-width: 500px;
}

.articles-header .section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold-primary);
  margin-bottom: var(--space-md);
}

.articles-header h2 {
  margin-bottom: var(--space-sm);
}

.articles-header p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

/* View all link */
.articles-view-all {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-gold-primary);
  text-decoration: none;
  transition: gap var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.articles-view-all:hover {
  gap: var(--space-sm);
  color: var(--color-gold-light);
}

.articles-view-all svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.articles-view-all:hover svg {
  transform: translateX(3px);
}

/* ---- Articles Grid ---- */

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ---- Article Card ---- */

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold-glow);
  box-shadow: var(--shadow-glass-hover), var(--shadow-gold);
}

/* ---- Article Thumbnail ---- */

.article-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.article-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-thumbnail img {
  transform: scale(1.05);
}

/* Category tag over thumbnail */
.article-category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  display: inline-flex;
  padding: 0.25rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-gold-primary);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border-radius: var(--radius-full);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  z-index: 1;
}

/* ---- Article Content ---- */

.article-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  flex-grow: 1;
}

.article-date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
}

.article-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
  transition: color var(--transition-fast);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card:hover .article-title {
  color: var(--color-gold-primary);
}

.article-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  line-height: var(--leading-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Article Footer ---- */

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  margin-top: auto;
}

.article-read-time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.article-read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-gold-primary);
  transition: gap var(--transition-fast);
}

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

.article-read-more svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.article-card:hover .article-read-more svg {
  transform: translateX(2px);
}

/* ---- Featured Article (large) ---- */

.article-featured {
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  .article-featured {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
  }

  .article-featured .article-thumbnail {
    aspect-ratio: auto;
    height: 100%;
    min-height: 300px;
  }

  .article-featured .article-content {
    padding: var(--space-xl);
    justify-content: center;
  }

  .article-featured .article-title {
    font-size: var(--text-2xl);
  }
}

/* ---- Responsive Grid ---- */

@media (min-width: 576px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .articles-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 575.98px) {
  .articles-header h2 {
    font-size: var(--text-3xl);
  }

  .articles-header {
    flex-direction: column;
    align-items: flex-start;
  }
}