/* =====================================================
   El Chacharas Inc. — Product Detail Styles
   ===================================================== */

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

/* Gallery */
.product-gallery {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
    align-self: start;
}

.product-gallery-main {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--color-gray-50);
    aspect-ratio: 1;
    margin-bottom: var(--space-4);
}

.product-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    cursor: zoom-in;
}

.product-gallery-main:hover img {
    transform: scale(1.05);
}

.product-gallery-thumbs {
    display: flex;
    gap: var(--space-3);
    overflow-x: auto;
    padding-bottom: var(--space-2);
}

.thumb {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    background: var(--color-gray-50);
    padding: 0;
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumb:hover {
    border-color: var(--color-gray-400);
}

.thumb.active {
    border-color: var(--color-green);
    box-shadow: 0 0 0 2px var(--color-green-bg);
}

/* Product Info */
.product-info {
    padding-top: var(--space-2);
}

.product-info-category {
    margin-bottom: var(--space-2);
}

.product-info-category a {
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    color: var(--color-green);
    transition: color var(--transition-fast);
}

.product-info-category a:hover {
    color: var(--color-green-dark);
}

.product-info-name {
    font-size: var(--text-3xl);
    font-weight: 800;
    margin-bottom: var(--space-2);
    line-height: 1.2;
}

.product-sku {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-4);
}

.product-info-price {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
}

.product-price-current {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-black);
}

.product-price-compare {
    font-size: var(--text-lg);
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.product-price-discount {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-red);
    background: var(--color-red-bg);
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.product-tax-note {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
}

.product-info-description {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.product-info-description p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* Options */
.product-option {
    margin-bottom: var(--space-5);
}

.product-option-label {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-2);
}

.product-option-label strong {
    color: var(--color-black);
}

/* Color Swatches */
.color-swatches {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.color-swatch {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    cursor: pointer;
    border: 3px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
}

.color-swatch:hover {
    transform: scale(1.1);
}

.color-swatch.active {
    border-color: var(--color-green);
    box-shadow: 0 0 0 2px var(--color-green-bg), inset 0 0 0 1px rgba(0,0,0,0.1);
}

.color-swatch.active::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* Size Options */
.size-options {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.size-btn {
    min-width: 50px;
    height: 42px;
    padding: 0 var(--space-4);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    background: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.size-btn:hover {
    border-color: var(--color-green);
    color: var(--color-green);
}

.size-btn.active {
    border-color: var(--color-green);
    background: var(--color-green);
    color: var(--color-white);
}

.size-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    text-decoration: line-through;
}

/* Stock Indicator */
.variant-stock {
    margin-bottom: var(--space-5);
}

.stock-indicator {
    font-size: var(--text-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.stock-indicator.in-stock {
    color: var(--color-green);
    background: var(--color-green-bg);
}

.stock-indicator.low-stock {
    color: var(--color-orange);
    background: var(--color-orange-bg);
}

.stock-indicator.out-of-stock {
    color: var(--color-red);
    background: var(--color-red-bg);
}

/* Quantity Selector */
.product-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.quantity-selector {
    display: flex;
    align-items: center;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.quantity-selector .qty-minus,
.quantity-selector .qty-plus {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    font-weight: 600;
    background: var(--color-gray-50);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    color: var(--color-gray-700);
}

.quantity-selector .qty-minus:hover,
.quantity-selector .qty-plus:hover {
    background: var(--color-green-bg);
    color: var(--color-green);
}

.quantity-selector input {
    width: 50px;
    text-align: center;
    border: none;
    font-size: var(--text-base);
    font-weight: 600;
    -moz-appearance: textfield;
    background: var(--color-white);
}

.quantity-selector input::-webkit-outer-spin-button,
.quantity-selector input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.product-add-btn {
    flex: 1;
    font-size: var(--text-base) !important;
    padding: var(--space-4) var(--space-6);
}

/* Guarantees */
.product-guarantees {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-5);
    background: var(--color-bg-warm);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.guarantee-item > span {
    font-size: 24px;
    flex-shrink: 0;
}

.guarantee-item div {
    display: flex;
    flex-direction: column;
}

.guarantee-item strong {
    font-size: var(--text-sm);
    font-weight: 600;
}

.guarantee-item span {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
}

/* Product Tabs */
.product-tabs {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.tabs-nav {
    display: flex;
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.tab-btn {
    flex: 1;
    padding: var(--space-4) var(--space-6);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-gray-500);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-green);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.tab-btn:hover {
    color: var(--color-black);
    background: var(--color-white);
}

.tab-btn.active {
    color: var(--color-green);
    background: var(--color-white);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tabs-content {
    padding: var(--space-8);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.tab-text {
    color: var(--color-gray-600);
    line-height: 1.8;
}

.tab-text h4 {
    color: var(--color-black);
    margin-bottom: var(--space-3);
}

@media (max-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .product-gallery {
        position: static;
    }

    .product-info-name {
        font-size: var(--text-2xl);
    }

    .product-price-current {
        font-size: var(--text-2xl);
    }

    .product-actions {
        flex-direction: column;
    }

    .tabs-nav {
        flex-direction: column;
    }

    .tab-btn {
        border-bottom: 1px solid var(--color-gray-200);
    }

    .tab-btn::after {
        height: 0;
    }

    .tabs-content {
        padding: var(--space-5);
    }
}