/**
 * ==================================================
 * Portfolio Section Styles
 * Grid with Filtering
 * ==================================================
 */

.portfolio-section {
  padding: var(--space-20) 0;
  background: var(--color-bg);
}

/* Filters */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.filter-btn:hover {
  border-color: var(--filter-color, var(--color-primary));
  color: var(--filter-color, var(--color-primary));
}

.filter-btn.active {
  background: var(--filter-color, var(--color-primary));
  border-color: var(--filter-color, var(--color-primary));
  color: #fff;
  box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.filter-icon {
  font-size: 1.1em;
}

.filter-count {
  padding: var(--space-1) var(--space-2);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
}

.filter-btn.active .filter-count {
  background: rgba(255, 255, 255, 0.2);
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

/* Portfolio Card */
.portfolio-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-normal);
  opacity: 1;
  transform: scale(1);
}

.portfolio-card.hidden {
  display: none;
}

.portfolio-card.hiding {
  opacity: 0;
  transform: scale(0.9);
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.portfolio-card:hover .card-glow {
  opacity: 1;
}

/* Card Media */
.card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

.portfolio-card:hover .card-thumbnail {
  transform: scale(1.1);
}

.card-thumbnail-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tertiary);
}

.placeholder-icon {
  font-size: 3rem;
  opacity: 0.3;
}

/* Card Overlay */
.card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.portfolio-card:hover .card-overlay {
  opacity: 1;
}

.play-btn {
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  color: #fff;
  cursor: pointer;
  transition: all var(--transition-normal);
  transform: scale(0.8);
}

.portfolio-card:hover .play-btn {
  transform: scale(1);
}

.play-btn:hover {
  background: var(--color-primary-light);
  box-shadow: var(--shadow-glow-primary);
  transform: scale(1.1) !important;
}

.play-btn svg {
  width: 28px;
  height: 28px;
  margin-left: 4px; /* Visual centering */
}

/* Card Category Badge */
.card-category {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: var(--cat-color, var(--color-primary));
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: #fff;
  backdrop-filter: blur(10px);
}

.cat-icon {
  font-size: 0.9em;
}

/* Card Content */
.card-content {
  padding: var(--space-5);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  line-height: var(--line-height-snug);
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* Card Glow Effect */
.card-glow {
  position: absolute;
  inset: -50%;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(var(--color-primary-rgb), 0.1) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

/* Empty State */
.portfolio-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.empty-text {
  color: var(--color-text-secondary);
}

/* Load More */
.portfolio-more {
  text-align: center;
  margin-top: var(--space-12);
}