/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; padding: 0.75rem 2rem;
  font-weight: 600; border-radius: var(--radius-sm); transition: var(--trans-base); cursor: pointer; border: 1px solid transparent;
}
.btn--primary { background: var(--ink-900); color: var(--white); }
.btn--primary:hover { background: var(--gold-600); transform: translateY(-2px); }
.btn--outline { border-color: var(--ink-900); color: var(--ink-900); }
.btn--outline:hover { background: var(--ink-900); color: var(--white); }
.btn--gold { background: var(--gold-500); color: var(--white); }

/* Cards */
.card { background: var(--white); border: 1px solid var(--neutral-200); border-radius: var(--radius-md); overflow: hidden; transition: var(--trans-base); height: 100%; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gold-500); }
.card__img-wrapper { aspect-ratio: 4/3; overflow: hidden; background: var(--neutral-100); }
.card__img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card__img { transform: scale(1.05); }
.card__content { padding: 1.5rem; flex-grow: 1; display: flex; flex-direction: column; }
.card__title { font-size: 1.25rem; margin-bottom: 0.5rem; }
.card__link { margin-top: auto; color: var(--gold-600); font-weight: 600; font-size: 0.875rem; display: inline-flex; align-items: center; gap: 4px; }

/* Grid Systems */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }

/* Fade In Up Animation */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.reveal--in { opacity: 1; transform: translateY(0); }

/* Breadcrumbs */
.breadcrumbs { padding: 1rem 0; font-size: 0.875rem; color: var(--ink-500); }
.breadcrumbs a { color: var(--ink-700); }
.breadcrumbs span { margin: 0 0.5rem; color: var(--neutral-200); }

/* Product Detail */
.product-hero { display: grid; grid-template-columns: 1fr; gap: 3rem; margin-top: 2rem; }
.gallery-main { aspect-ratio: 1/1; background: var(--neutral-100); border-radius: var(--radius-md); overflow: hidden; }
.gallery-thumbs { display: flex; gap: 1rem; margin-top: 1rem; overflow-x: auto; }
.thumb { width: 80px; height: 80px; border-radius: 4px; cursor: pointer; opacity: 0.6; transition: 0.2s; object-fit: cover; border: 2px solid transparent;}
.thumb.active { opacity: 1; border-color: var(--gold-500); }
@media(min-width: 768px) { .product-hero { grid-template-columns: 1.2fr 0.8fr; } }

/* Lightbox */
.lightbox {
    position: fixed; inset: 0; background: rgba(14, 17, 22, 0.95); z-index: 2000;
    display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.lightbox.active { opacity: 1; pointer-events: auto; }
.lightbox img { max-height: 90vh; max-width: 90vw; border-radius: 4px; box-shadow: 0 0 20px rgba(0,0,0,0.5); }
.lightbox-close { position: absolute; top: 20px; right: 20px; color: white; font-size: 2rem; cursor: pointer; }