/* Reset & base */
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: #f9f9f9;
    color: #135029;
    line-height: 1.5;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 48px;
    background: white;
}

.logo img {
    height: 50px;
}

.nav a {
    font-family: 'Audiowide', cursive;
    color: #135029;
    text-decoration: none;
    margin-left: 32px;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s;
}
.nav a:hover,
.nav a.active {
    color: #1a6634;
}

/* PDP Container */
.pdp-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 24px;
}

/* Back to top button */
#backToTop {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: #135029;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    color: white;
    font-size: 18px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(19,80,41,0.3);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 1000;
}
#backToTop.show {
    opacity: 1;
    pointer-events: auto;
}

/* Product Hero */
.product-hero {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.product-images {
    flex: 1 1 500px;
    max-width: 600px;
    position: relative;
}

.main-image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 1.5rem;
    box-shadow: 0 8px 24px rgba(19,80,41,0.15);
}

.main-image-wrapper img {
    width: 100%;
    display: block;
    cursor: zoom-in;
    transition: transform 0.3s ease;
}

.main-image-wrapper:hover img {
    transform: scale(1.2);
}

.thumbnail-carousel {
    margin-top: 16px;
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 8px;
}

.thumbnail-carousel img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 1rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s;
}

.thumbnail-carousel img:focus,
.thumbnail-carousel img:hover,
.thumbnail-carousel img.active {
    border-color: #135029;
    outline: none;
}

/* Product Info */
.product-info {
    flex: 1 1 400px;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.product-title {
    font-family: 'Audiowide', cursive;
    font-size: 2.4rem;
    margin: 0;
    color: #135029;
}

.product-short-desc {
    font-size: 1.1rem;
    color: #2a4d2a;
}

.rating-reviews {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stars {
    color: #fede00;
    font-size: 1.2rem;
}

.reviews-link {
    font-size: 0.9rem;
    color: #135029;
    text-decoration: underline;
    cursor: pointer;
}

.price-section {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-weight: 700;
    font-size: 1.8rem;
    color: #135029;
}

.price-original {
    font-size: 1.2rem;
    color: #999;
    text-decoration: line-through;
}

.discount-badge {
    background: #135029;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 1rem;
    text-transform: uppercase;
}

.product-options fieldset {
    border: none;
    margin: 0 0 20px 0;
    padding: 0;
}

.product-options legend {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 1rem;
}

.product-options label {
    margin-right: 16px;
    cursor: pointer;
    font-size: 1rem;
    user-select: none;
}

.product-options input[type="radio"] {
    margin-right: 6px;
}

.quantity-selector {
    margin-bottom: 20px;
}

.quantity-selector label {
    font-weight: 600;
    margin-right: 8px;
}

.quantity-selector input {
    width: 60px;
    padding: 6px 8px;
    border: 1px solid #ccc;
    border-radius: 0.5rem;
    font-size: 1rem;
}

.action-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.btn {
    cursor: pointer;
    border-radius: 2rem;
    padding: 12px 28px;
    font-family: 'Audiowide', cursive;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    transition: background-color 0.3s, color 0.3s;
    user-select: none;
}

.btn-add-to-cart {
    background-color: #135029;
    color: white;
}

.btn-add-to-cart:hover {
    background-color: #1a6634;
}

.btn-buy-now {
    background-color: #fede00;
    color: #135029;
}

.btn-buy-now:hover {
    background-color: #e6c800;
}

.btn-wishlist {
    background: transparent;
    color: #135029;
    font-size: 1.5rem;
    padding: 8px;
    border-radius: 50%;
    border: 2px solid #135029;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s, color 0.3s;
}

.btn-wishlist:hover {
    background-color: #135029;
    color: white;
}

.shipping-info {
    font-size: 0.9rem;
    color: #2a4d2a;
    margin-top: 24px;
    line-height: 1.4;
}

/* Expandable content */
.product-details {
    max-width: 900px;
    margin: 0 auto 60px auto;
    padding: 0 24px;
}

.expand-btn {
    background: #135029;
    color: white;
    font-family: 'Audiowide', cursive;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 12px 24px;
    border: none;
    border-radius: 2rem;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
    max-width: 400px;
    margin-bottom: 16px;
}

.expand-btn[aria-expanded="true"] {
    background-color: #1a6634;
}

.expandable-content {
    background: white;
    border-radius: 1rem;
    padding: 24px;
    box-shadow: 0 8px 24px rgba(19, 80, 41, 0.1);
    font-size: 1rem;
    color: #135029;
    line-height: 1.6;
}

/* Customer reviews */
.customer-reviews {
    max-width: 900px;
    margin: 0 auto 60px auto;
    padding: 0 24px;
}

.customer-reviews h2 {
    font-family: 'Audiowide', cursive;
    font-size: 2rem;
    margin-bottom: 24px;
    color: #135029;
}

.reviews-list {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
}

.review {
    background: white;
    border-radius: 1rem;
    padding: 20px 24px;
    box-shadow: 0 6px 20px rgba(19, 80, 41, 0.1);
    margin-bottom: 24px;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.reviewer-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: #135029;
}

.stars {
    color: #fede00;
    font-size: 1rem;
}

.review-text {
    font-size: 1rem;
    color: #2a4d2a;
    margin-bottom: 12px;
}

.review-images img {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    object-fit: cover;
    margin-right: 12px;
    cursor: pointer;
    transition: transform 0.3s;
}
.review-images img:hover {
    transform: scale(1.1);
}

/* Review form */
.review-form {
    background: white;
    padding: 24px;
    border-radius: 1rem;
    box-shadow: 0 6px 20px rgba(19, 80, 41, 0.1);
}

.review-form h3 {
    font-family: 'Audiowide', cursive;
    color: #135029;
    margin-bottom: 16px;
}

.review-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.star-input {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.star-input input[type="radio"] {
    display: none;
}

.star-input label {
    font-size: 1.8rem;
    color: #ccc;
    cursor: pointer;
    transition: color 0.3s;
}

.star-input input[type="radio"]:checked ~ label,
.star-input label:hover,
.star-input label:hover ~ label {
    color: #fede00;
}

.review-form textarea {
    width: 100%;
    resize: vertical;
    min-height: 100px;
    padding: 12px;
    font-size: 1rem;
    border-radius: 0.75rem;
    border: 1px solid #ccc;
    margin-bottom: 16px;
    font-family: inherit;
}

.btn-submit-review {
    background-color: #135029;
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 2rem;
    font-family: 'Audiowide', cursive;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit-review:hover {
    background-color: #1a6634;
}

/* Recommended products */
.recommended-products {
    max-width: 1200px;
    margin: 0 auto 80px auto;
    padding: 0 24px;
}

.recommended-products h2 {
    font-family: 'Audiowide', cursive;
    font-size: 2rem;
    color: #135029;
    margin-bottom: 32px;
}

.recommended-grid {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding-bottom: 12px;
    scroll-behavior: smooth;
}

.recommended-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 6px 20px rgba(19, 80, 41, 0.1);
    min-width: 220px;
    flex-shrink: 0;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    padding: 16px;
    text-align: center;
}

.recommended-card:hover,
.recommended-card:focus {
    outline: none;
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(19, 80, 41, 0.2);
}

.recommended-card img {
    width: 100%;
    border-radius: 1rem;
    margin-bottom: 12px;
    object-fit: cover;
}

.recommended-card h3 {
    font-family: 'Audiowide', cursive;
    font-size: 1.1rem;
    color: #135029;
    margin-bottom: 8px;
}

.recommended-card .price {
    font-weight: 700;
    font-size: 1rem;
    color: #2a4d2a;
}

/* Responsive */
@media (max-width: 900px) {
    .product-hero {
    flex-direction: column;
    }
    .product-images,
    .product-info {
    max-width: 100%;
    }
    .recommended-grid {
    gap: 16px;
    }
}

@media (max-width: 600px) {
    .header {
    padding: 16px 24px;
    }
    .nav a {
    margin-left: 16px;
    font-size: 0.9rem;
    }
    .product-title {
    font-size: 1.8rem;
    }
    .price-section {
    font-size: 1.4rem;
    }
    .recommended-card {
    min-width: 180px;
    }
    .recommended-products h2 {
    font-size: 1.6rem;
    }
}

.recommended-grid {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding-bottom: 12px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
  }
.recommended-grid::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.recommended-grid {
    cursor: grab;
    user-select: none;
}
.recommended-grid.dragging {
    cursor: grabbing;
}