/* Collections / Cards */
.collections {
  padding: 120px 50px 100px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-title {
  font-size: 48px;
  letter-spacing: -2px;
  margin-bottom: 20px;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 18px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.category-tabs {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 12px 30px;
  background: transparent;
  border: 1px solid var(--text-muted);
  color: var(--text-muted);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: all 0.3s ease;
  font-size: 12px;
}
.tab-btn.active,
.tab-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  transform: translateY(-2px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 25px;
}
.collection-card {
  position: relative;
  background: linear-gradient(135deg, #1a1a1a, #0a0a0a);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.5s ease;
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
  border-radius: 8px;
}
.collection-thumbnail {
  width: 100%;
  height: 300px;
  background: linear-gradient(45deg, #2a2a2a, #1a1a1a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 50px;
  opacity: 0.3;
  transition: transform 0.5s ease, opacity 0.5s ease;
  position: relative;
  overflow: hidden;
}
.collection-thumbnail::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 102, 0, 0.1) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.8s ease;
}
.collection-card:hover .collection-thumbnail::after {
  transform: translateX(100%);
}
.collection-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.collection-card:hover .collection-thumbnail {
  transform: scale(1.05);
  opacity: 0.8;
}
.collection-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(255, 102, 0, 0.2);
}

.card-content {
  padding: 25px;
  background: rgba(0, 0, 0, 0.95);
}
.card-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent);
  color: white;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  border-radius: 2px;
}
.card-title {
  font-size: 22px;
  margin-bottom: 8px;
  font-weight: 700;
}
.card-subtitle {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 11px;
  margin-bottom: 12px;
}
.card-price {
  font-size: 18px;
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 900px) {
  .collections {
    padding: 60px 20px;
  }
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
  }
  .collection-thumbnail {
    height: 250px;
  }
  .card-content {
    padding: 20px;
  }
}