/* ============================================
   PROJECTS PAGE STYLES
   ============================================ */

.section--page-header {
  padding-top: var(--space-12);
  padding-bottom: var(--space-6);
}

.page-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-3xl);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.page-subtitle {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 500px;
}

.section--compact {
  padding: var(--space-4) 0;
}

.section--featured {
  padding: var(--space-6) 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section__header {
  margin-bottom: var(--space-4);
}

.section__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-xl);
  font-weight: 500;
  color: var(--text-primary);
}

/* Featured Projects Grid */
.project-grid--featured {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-4);
}

.project-grid--featured .card__image,
.project-grid--featured .card__image-placeholder {
  height: 250px;
}

.card--featured {
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.1);
}

/* ============================================
   FILTER SECTIONS
   ============================================ */

.filter-section {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.filter-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 50px;
}

.filter-bar {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border-subtle);
  padding: var(--space-1) var(--space-2);
  border-radius: 4px;
  cursor: pointer;
  transition: 
    color var(--transition-fast),
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-secondary);
  border-color: var(--text-muted);
}

.filter-btn--active {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

/* ============================================
   PROJECT CARDS ENHANCED
   ============================================ */

.card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.card__image-placeholder {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.card__image-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 30% 50%, var(--glow-primary), transparent 50%),
    radial-gradient(circle at 70% 50%, var(--glow-secondary), transparent 50%);
  opacity: 0.5;
}

.card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: top;
  border-bottom: 1px solid var(--border-subtle);
  opacity: 0;
  transition: opacity 0.5s ease;
  background-color: var(--bg-tertiary);
}

.card__image.loaded {
  opacity: 1;
}

.card__content {
  padding: var(--space-3);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__date {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.card__links {
  display: flex;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
}

.card__link-btn {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  transition: 
    color var(--transition-fast),
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.card__link-btn:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

.card__link-btn--primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.card__link-btn--primary:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-primary);
}

/* Hidden state for filtering */
.card[data-hidden="true"] {
  display: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .page-title {
    font-size: var(--font-size-2xl);
  }
  
  .page-subtitle {
    font-size: var(--font-size-base);
  }
}

@media (max-width: 640px) {
  .section--page-header {
    padding-top: var(--space-8);
    padding-bottom: var(--space-4);
  }
  
  .filter-section {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .filter-label {
    margin-bottom: var(--space-1);
  }
  
  .filter-bar {
    width: 100%;
  }
  
  .filter-btn {
    padding: 6px 10px;
    font-size: 11px;
  }
  
  .card__image-placeholder,
  .card__image {
    height: 100px;
  }
  
  .card__content {
    padding: var(--space-2);
  }
  
  .card__title {
    font-size: var(--font-size-base);
  }
  
  .card__intent {
    font-size: var(--font-size-sm);
  }
  
  .tags {
    gap: 4px;
  }
  
  .tag {
    font-size: 10px;
    padding: 2px 6px;
  }
}