.product-hero {
    height: 50vh;
    background-image: url('https://via.placeholder.com/1920x1080/111/D4AF37?text=Koleksiyon');
    background-size: cover; background-position: center; position: relative;
    display: flex; align-items: center; justify-content: center;
}
.product-hero .hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.5);
}
.product-hero h1 {
    position: relative; z-index: 2; font-size: 4rem; color: var(--text-light);
    text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
}
.product-gallery { padding: 100px 0; }
.filter-buttons {
    display: flex; justify-content: center; flex-wrap: wrap;
    gap: 15px; margin-bottom: 60px;
}
.filter-btn {
    background: transparent; border: 1px solid var(--text-muted);
    color: var(--text-muted); padding: 10px 25px; cursor: pointer;
    font-family: var(--font-body); font-size: 0.9rem; letter-spacing: 1px;
    text-transform: uppercase; transition: all 0.3s ease;
}
.filter-btn:hover { color: var(--text-light); border-color: var(--text-light); }
.filter-btn.active { background: var(--gold-primary); border-color: var(--gold-primary); color: var(--bg-dark); }

.product-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.product-card {
    background: linear-gradient(145deg, var(--bg-content), var(--bg-dark));
    border: 1px solid rgba(255, 255, 255, 0.05); min-height: 280px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: rgba(212, 175, 55, 0.3);
}
.card-content { text-align: center; }
.card-content h3 { font-family: var(--font-heading); font-size: 2.5rem; color: var(--gold-primary); margin-bottom: 10px; }
.card-content p { font-family: var(--font-body); font-size: 1rem; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; }

@media (max-width: 768px) {
    .product-hero h1 { font-size: 2.8rem; }
    .filter-buttons { gap: 10px; }
    .filter-btn { padding: 8px 18px; font-size: 0.8rem; }
    .card-content h3 { font-size: 2rem; }
}