/* ========================================
   PRODUCT DETAIL PAGE STYLES
   ======================================== */

/* === PRODUCT HEADER === */
.product-header {
    padding: 180px 0 60px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
}

.product-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(46, 125, 50, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(102, 187, 106, 0.1) 0%, transparent 50%);
}

.product-header .container {
    position: relative;
    z-index: 1;
}

.product-header h1 {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 10px;
    margin-top: 20px;
    color: var(--dark);
}

.product-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 0;
}

/* === PRODUCT DETAILS SECTION === */
.product-details {
    padding: 80px 0;
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
}

/* === PRODUCT GALLERY === */
.product-gallery {
    margin-bottom: 40px;
}

.main-image {
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.main-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.thumbnail {
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
    height: 100px;
    object-fit: cover;
}

.thumbnail:hover {
    border-color: var(--primary-light);
}

.thumbnail.active {
    border-color: var(--primary);
}

/* === PRODUCT INFO TABS === */
.product-info-tabs {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.tab-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--gray-light);
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 15px 25px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-content h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 20px;
    color: var(--dark);
}

.tab-content p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.standard-list {
    list-style: none;
    margin: 20px 0;
}

.standard-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray);
}

.standard-list i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* === FEATURE GRID === */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.feature-box {
    background: var(--gray-light);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.feature-box:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    transform: translateY(-5px);
}

.feature-box i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
    display: block;
}

.feature-box:hover i {
    color: var(--white);
}

.feature-box h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-box p {
    font-size: 0.9rem;
    margin: 0;
}

/* === BENEFITS LIST === */
.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.benefit-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon i {
    color: var(--white);
    font-size: 1.5rem;
}

.benefit-content h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}

.benefit-content p {
    margin: 0;
    color: var(--gray);
}

/* === APPLICATIONS GRID === */
.applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.application-card {
    background: var(--gray-light);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.application-card:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-5px);
}

.application-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.application-card:hover i {
    color: var(--white);
}

.application-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.application-card p {
    font-size: 0.9rem;
    margin: 0;
}

/* === SPECIFICATIONS === */
.spec-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.spec-card {
    background: var(--gray-light);
    padding: 25px;
    border-radius: 15px;
}

.spec-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary);
}

.spec-card ul {
    list-style: none;
}

.spec-card ul li {
    padding: 8px 0;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 10px;
}

.spec-card ul li::before {
    content: '✓';
    color: var(--primary);
    font-weight: bold;
}

.contact-spec {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    color: var(--white);
}

.contact-spec p {
    color: var(--white);
    margin-bottom: 20px;
}

.contact-spec .btn {
    background: var(--white);
    color: var(--primary);
}

.contact-spec .btn:hover {
    background: var(--gray-light);
}

/* === PRODUCT SIDEBAR === */
.product-sidebar {
    position: sticky;
    top: 100px;
}

.enquiry-card {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.enquiry-card h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 10px;
    color: var(--dark);
}

.enquiry-card > p {
    color: var(--gray);
    margin-bottom: 25px;
}

.enquiry-form .form-group {
    margin-bottom: 15px;
}

.enquiry-form input,
.enquiry-form select,
.enquiry-form textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--gray-light);
    border-radius: 12px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.enquiry-form input:focus,
.enquiry-form select:focus,
.enquiry-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.quick-contact {
    background: var(--gray-light);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 30px;
}

.quick-contact h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
}

.quick-contact .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px 0;
}

.quick-contact .contact-item:first-child {
    padding-top: 0;
}

.quick-contact .contact-item i {
    color: var(--primary);
    font-size: 1.3rem;
    margin-top: 3px;
}

.quick-contact .contact-item strong {
    display: block;
    font-weight: 600;
    margin-bottom: 3px;
    color: var(--dark);
}

.quick-contact .contact-item a {
    color: var(--gray);
    font-size: 0.95rem;
}

.quick-contact .contact-item a:hover {
    color: var(--primary);
}

.certifications {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 25px;
    border-radius: 15px;
    color: var(--white);
}

.certifications h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.cert-badges {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cert-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 15px;
    border-radius: 10px;
}

.cert-badge i {
    font-size: 1.5rem;
}

/* === RELATED PRODUCTS === */
.related-products {
    padding: 80px 0;
    background: var(--gray-light);
}

.related-products h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 50px;
    color: var(--dark);
}

.products-grid-small {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card-small {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
}

.product-card-small:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-card-small img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card-small h4 {
    padding: 20px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

.product-card-small .btn-link {
    display: block;
    padding: 15px 20px;
    color: var(--primary);
    font-weight: 600;
    border-top: 1px solid var(--gray-light);
}

.product-card-small .btn-link:hover {
    background: var(--gray-light);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .product-layout {
        grid-template-columns: 1fr;
    }
    
    .product-sidebar {
        position: static;
    }
    
    .spec-cards {
        grid-template-columns: 1fr;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .product-header h1 {
        font-size: 2rem;
    }
    
    .main-image img {
        height: 300px;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .feature-grid,
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-buttons {
        flex-wrap: wrap;
    }
    
    .products-grid-small {
        grid-template-columns: 1fr;
    }
}