/* ═══════════════════════════════════════════════════════════
   MILORA BEAUTY — product_detail.css
═══════════════════════════════════════════════════════════ */

/* ── Layout ───────────────────────────────────────────────── */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-16);
    align-items: start;
    margin-bottom: var(--sp-20);
}

/* ── Gallery ──────────────────────────────────────────────── */
.product-gallery {
    position: sticky;
    top: calc(var(--navbar-height) + var(--sp-6));
}

.gallery-main {
    position: relative;
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--cream);
    margin-bottom: var(--sp-4);
}

.gallery-main__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    cursor: zoom-in;
}
.gallery-main:hover .gallery-main__img { transform: scale(1.03); }

.gallery-main__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--sp-3);
    color: var(--grey-light);
    background: linear-gradient(135deg, var(--cream) 0%, var(--cream-dark) 100%);
}
.gallery-main__placeholder i { font-size: 3rem; }
.gallery-main__placeholder span {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.gallery-sale-badge {
    position: absolute;
    top: var(--sp-4);
    left: var(--sp-4);
    z-index: 2;
}

.gallery-thumbs {
    display: flex;
    gap: var(--sp-3);
}

.gallery-thumb {
    width: 72px;
    height: 88px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
    flex-shrink: 0;
    cursor: pointer;
}
.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.gallery-thumb.active,
.gallery-thumb:hover {
    border-color: var(--gold);
}

/* ── Product Info ─────────────────────────────────────────── */
.product-info__meta {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-4);
}

.product-info__brand {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
    transition: color var(--transition-fast);
}
.product-info__brand:hover { color: var(--gold-deep); }

.product-info__category {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--grey-light);
}
.product-info__category::before {
    content: '·';
    margin-right: var(--sp-3);
    color: var(--gold-pale);
}

.product-info__name {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--sp-5);
}

/* ── Price ────────────────────────────────────────────────── */
.product-info__price {
    display: flex;
    align-items: baseline;
    gap: var(--sp-4);
    flex-wrap: wrap;
    margin-bottom: var(--sp-3);
}

.price-current {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--black);
}

.price-original {
    font-size: 1.1rem;
    color: var(--grey-light);
    text-decoration: line-through;
}

.product-info__savings {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-4);
    background: rgba(155,64,64,0.08);
    border: 1px solid rgba(155,64,64,0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-error);
    margin-bottom: var(--sp-5);
}

/* ── Stock indicator ──────────────────────────────────────── */
.product-info__stock {
    margin-bottom: var(--sp-5);
}

.stock-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: 0.8rem;
    font-weight: 500;
}

.stock-indicator i { font-size: 0.5rem; }

.stock-indicator--in  { color: var(--color-success); }
.stock-indicator--low { color: var(--color-warning); }
.stock-indicator--out { color: var(--grey-light); }

/* ── Add to cart row ──────────────────────────────────────── */
.product-info__add {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    margin: var(--sp-6) 0;
    flex-wrap: wrap;
}

.product-info__add .btn--add-to-cart {
    flex: 1;
    min-width: 160px;
}

/* ── Delivery info ────────────────────────────────────────── */
.product-info__delivery {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
    padding: var(--sp-5);
    background: var(--cream-light);
    border: 1px solid var(--gold-pale);
    border-radius: var(--radius-md);
    margin-bottom: var(--sp-6);
}

.delivery-item {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
    font-size: 0.85rem;
    color: var(--grey);
}
.delivery-item i {
    color: var(--gold);
    font-size: 0.9rem;
    margin-top: 2px;
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}
.delivery-item strong { color: var(--black-soft); }

/* ── Tabs ─────────────────────────────────────────────────── */
.product-tabs {
    border-top: 1px solid var(--gold-pale);
    padding-top: var(--sp-5);
}

.product-tabs__nav {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--gold-pale);
    margin-bottom: var(--sp-5);
}

.tab-btn {
    padding: var(--sp-3) var(--sp-5);
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--grey);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}
.tab-btn:hover { color: var(--gold-deep); }
.tab-btn.active {
    color: var(--gold-deep);
    border-bottom-color: var(--gold);
}

.tab-panel {
    display: none;
    font-size: 0.9rem;
    color: var(--grey);
    line-height: 1.85;
    animation: tabFade 0.2s ease;
}
.tab-panel.active { display: block; }

@keyframes tabFade {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Related section ──────────────────────────────────────── */
.related-section {
    border-top: 1px solid var(--gold-pale);
    padding-top: var(--sp-12);
    margin-top: var(--sp-4);
    margin-bottom: var(--sp-16);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: var(--sp-8);
    }
    .product-gallery { position: static; }
}

@media (max-width: 560px) {
    .product-info__add { flex-direction: column; }
    .product-info__add .btn { width: 100%; }
    .product-info__add .qty-stepper { width: 100%; justify-content: center; }
}