@import 'variables.css';
@import 'components/navigation.css';
@import 'components/buttons.css';
@import 'components/hero.css';
@import 'components/products.css';
@import 'components/footer.css';
@import 'components/forms.css';
@import 'components/sections.css';
@import 'components/interactive.css';
@import 'components/ui.css';
@import 'components/optimization.css';

.page-wrapper {
    padding-top: var(--nav-height);
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-intro-image {
    aspect-ratio: 3/2;
    overflow: hidden;
    border-radius: var(--radius-md);
    width: 100%;
    height: auto;
    min-height: 450px;
}

.about-intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-intro-content h2 {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.about-intro-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    padding: var(--spacing-3xl) var(--spacing-2xl);
    background: linear-gradient(135deg, #f8f6f3 0%, #fdfbf7 100%);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-2xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, #d4d0c8, transparent);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    color: #1a1a1a;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

@media (max-width: 768px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .stat-item:not(:last-child)::after {
        display: none;
    }

    .stat-item:nth-child(2)::after,
    .stat-item:nth-child(4)::after {
        display: none;
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }
}

.why-choose-us {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-4xl) 0;
    background-color: #fdfbf7;
}

.why-content {
    padding: var(--spacing-lg);
}

.why-title {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: #1a1a1a;
    margin-bottom: var(--spacing-2xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
    grid-column: 1 / -1;
}

.why-section {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.why-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-icon i {
    color: #1a1a1a;
    font-size: var(--font-size-xl);
}

.why-text {
    flex: 1;
}

.why-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: var(--spacing-sm);
}

.why-list {
    list-style: disc;
    padding-left: var(--spacing-lg);
    margin: 0;
}

.why-list li {
    margin-bottom: var(--spacing-xs);
    color: #4a4a4a;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.why-text p {
    color: #4a4a4a;
    font-size: var(--font-size-sm);
    line-height: 1.8;
    margin: 0;
}

.why-image {
    border-radius: 0;
    overflow: hidden;
}

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

@media (max-width: 1024px) {
    .why-choose-us {
        grid-template-columns: 1fr;
        padding: var(--spacing-2xl) 0;
    }

    .why-image {
        order: -1;
    }

    .why-img {
        height: 300px;
        min-height: 300px;
    }

    .why-title {
        font-size: var(--font-size-2xl);
    }

    .why-section {
        gap: var(--spacing-lg);
    }

    .why-img {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .why-title {
        font-size: var(--font-size-2xl);
    }

    .why-section {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.material-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.material-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

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

.material-content {
    padding: var(--spacing-lg);
}

.material-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.material-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .materials-grid {
        grid-template-columns: 1fr;
    }
}

.contact-grid {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-item i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 50%;
    color: var(--accent-color);
}

.contact-item h4 {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.product-gallery {
    position: sticky;
    top: calc(var(--nav-height) + var(--spacing-lg));
}

.main-image {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    background: var(--bg-secondary);
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
}

.thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.thumbnail {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
    background: var(--bg-secondary);
}

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

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

.product-info-detail {
    padding: var(--spacing-lg) 0;
}

.product-info-detail h1 {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.stars {
    display: flex;
    gap: 2px;
    color: var(--accent-color);
}

.rating-count {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.product-price-detail {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: var(--spacing-lg);
}

.product-description-detail {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.product-options {
    margin-bottom: var(--spacing-lg);
}

.option-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.color-options {
    display: flex;
    gap: var(--spacing-sm);
}

.color-swatch {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.color-swatch.active {
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.thickness-options {
    display: flex;
    gap: var(--spacing-sm);
}

.thickness-btn {
    padding: 8px 16px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.thickness-btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-secondary);
}

.thickness-btn.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-primary);
    font-weight: 600;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.qty-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-lg);
    transition: all var(--transition-fast);
}

.qty-btn:hover {
    border-color: var(--text-primary);
}

.qty-input {
    width: 60px;
    text-align: center;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.product-actions-detail {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.product-meta {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.meta-item {
    display: flex;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.meta-item span:first-child {
    width: 120px;
    color: var(--text-secondary);
}

@media (max-width: 1024px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
    }

    .product-gallery {
        position: static;
    }
}

.certification-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.certification-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.certification-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.certification-image {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.certification-info {
    padding: var(--spacing-lg);
}

.certification-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.certification-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

@media (max-width: 1024px) {
    .certification-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .certification-image {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .certification-grid {
        grid-template-columns: 1fr;
    }

    .certification-image {
        height: 200px;
    }
}

.usage-scenarios {
    padding: var(--spacing-xl) 0;
}

.scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 768px) {
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
}

.scenario-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.scenario-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
}

.scenario-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.scenario-card:hover .scenario-image img {
    transform: scale(1.1);
}

.scenario-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(to top, rgba(45, 43, 44, 0.95), rgba(45, 43, 44, 0.6));
    color: white;
    font-weight: 500;
    font-size: var(--font-size-md);
    letter-spacing: 0.5px;
    backdrop-filter: blur(4px);
}

.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox-modal.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-modal.hidden {
    opacity: 0;
    visibility: hidden;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    cursor: pointer;
}

.lightbox-content {
    position: relative;
    z-index: 1;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: lightboxFadeIn 0.3s ease;
}

@keyframes lightboxFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 28px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.3s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.4);
}

.scenario-card {
    cursor: zoom-in;
}

.product-quick-features {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.product-quick-features h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.feature-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(139, 69, 19, 0.1);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.2s ease;
    cursor: default;
}

.feature-badge:hover {
    background: rgba(139, 69, 19, 0.2);
    transform: scale(1.05);
}

.feature-badge i {
    color: var(--accent-color);
    font-size: 12px;
}