/* EKI E-COMMERCE STYLESHEET - PRODUCT PAGE V3.0 (GOLD THEME) */
/* This stylesheet works WITH index.css, which provides the variables and base styles. */

main {
    background-color: var(--color-background);
}
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

.breadcrumbs {
    padding: calc(var(--spacing-unit) * 2) 0;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-white);
}
.breadcrumbs a { color: var(--color-text-light); }
.breadcrumbs span { color: var(--color-text); font-weight: 500; }
.breadcrumbs a:hover { color: var(--color-accent); }

.product-detail-section {
    padding: calc(var(--spacing-unit) * 8) 0;
    background-color: var(--color-white);
}
.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
}

.product-images .main-image {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.product-info {
    padding-top: var(--spacing-unit) * 2;
}
.product-info-category {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.product-info-title {
    font-size: 2.5rem;
    margin: var(--spacing-unit) 0;
    color: var(--color-heading);
}
.product-info-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-unit);
    margin-bottom: var(--spacing-unit) * 2;
}
.product-info-rating .stars { color: #f6b01e; }
.product-info-rating .rating-text {
    color: var(--color-text-light);
    font-size: 0.9rem;
}
.product-info-rating .rating-text:hover {
    text-decoration: underline;
    color: var(--color-accent);
}

.product-info-price {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-unit) * 3;
}
.product-info-description {
    margin-bottom: var(--spacing-unit) * 3;
    max-width: 55ch;
    line-height: 1.8;
}
.product-stock {
    margin-bottom: var(--spacing-unit) * 4;
    font-weight: 500;
}
.stock-in { color: #059669; }
.stock-out { color: #e53e3e; }
.stock-in i, .stock-out i { margin-right: var(--spacing-unit); }

.product-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-unit) * 2;
}
.quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}
.quantity-selector input {
    width: 60px;
    height: 52px;
    text-align: center;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    background: none;
    color: var(--color-heading);
    -moz-appearance: textfield;
}
.quantity-selector input::-webkit-outer-spin-button,
.quantity-selector input::-webkit-inner-spin-button {
  -webkit-appearance: none; margin: 0;
}
.quantity-selector .quantity-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0 15px;
    font-size: 1.2rem;
    color: var(--color-text-light);
    height: 52px;
    transition: var(--transition-fast);
}
.quantity-btn:hover { color: var(--color-accent); }

.add-to-cart-btn {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-unit);
}
.add-to-cart-btn:disabled {
    background: var(--color-border);
    color: var(--color-text-light);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}
.add-to-cart-btn i { margin-right: var(--spacing-unit); }

/* Lower Section: Reviews & Related */
.product-details-lower {
    background: var(--color-background);
    padding: calc(var(--spacing-unit) * 12) 0;
}
.product-details-lower .section-header { text-align: center; margin-bottom: calc(var(--spacing-unit) * 6); }
.product-details-lower .section-title { font-size: 2.5rem; }

.reviews-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
}
.review-summary h3, .review-form-container h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-unit) * 3;
    color: var(--color-heading);
    padding-bottom: var(--spacing-unit);
    border-bottom: 1px solid var(--color-border);
}
.review-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-unit) * 3;
}
.review-card {
    border: 1px solid var(--color-border);
    padding: var(--spacing-unit) * 3;
    border-radius: var(--border-radius);
    background-color: var(--color-white);
}
.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-unit);
}
.review-author { font-weight: 600; color: var(--color-heading); }
.review-text { font-style: italic; color: var(--color-text); }

.review-form-container {
    background: var(--color-white);
    padding: var(--spacing-unit) * 4;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}
.form-group { margin-bottom: var(--spacing-unit) * 2; }
.form-group label { display: block; margin-bottom: var(--spacing-unit); font-weight: 500; }
.form-group select, .form-group textarea {
    width: 100%;
    padding: var(--spacing-unit) * 1.5;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}
.form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(217, 164, 66, 0.15);
}
.form-group textarea { resize: vertical; }

.related-products { margin-top: calc(var(--spacing-unit) * 12); }
.related-products h3 {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: var(--spacing-unit) * 4;
    color: var(--color-heading);
}

.not-found-section { text-align: center; padding: calc(var(--spacing-unit) * 10) 0; }
.not-found-section h2 { font-size: 2.5rem; margin-bottom: var(--spacing-unit) * 2; }
.not-found-section p { margin-bottom: var(--spacing-unit) * 4; }

/* Responsive Styles */
@media (max-width: 1024px) {
    .product-layout, .reviews-grid { grid-template-columns: 1fr; }
    .review-form-container { margin-top: calc(var(--spacing-unit) * 6); }
}

@media (max-width: 768px) {
    .product-info-title { font-size: 2rem; }
    .product-actions { flex-direction: column; align-items: stretch; }
}