:root {
    --color-primary: #0066ff;
    --color-primary-dark: #0052cc;
    --color-primary-light: #e6f0ff;
    --color-secondary: #6c757d;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg-alt);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    color: var(--color-text-light);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 16px;
    padding-left: 16px;
    border-left: 1px solid var(--color-border);
}

.lang-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.lang-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.lang-divider {
    color: var(--color-border);
}

.breadcrumb {
    background: white;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.breadcrumb-link:hover {
    color: var(--color-primary);
}

.breadcrumb-separator {
    color: var(--color-border);
}

.breadcrumb-current {
    color: var(--color-text);
    font-size: 14px;
    font-weight: 500;
}

.product-detail {
    padding: 60px 0;
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.product-gallery {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.main-image {
    width: 100%;
    height: 500px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid var(--color-border);
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 12px;
}

.thumbnail {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 2px solid var(--color-border);
    transition: var(--transition);
}

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

.product-category {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.product-category:hover {
    opacity: 0.8;
}

.product-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
    letter-spacing: -0.5px;
}

.product-brand-tag {
    display: inline-block;
    padding: 6px 12px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 24px;
}

.product-price-box {
    padding: 24px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.price-label {
    font-size: 14px;
    color: var(--color-text-light);
    display: block;
    margin-bottom: 8px;
}

.price-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}

.price-note {
    font-size: 13px;
    color: var(--color-text-light);
}

.stock-status {
    margin-bottom: 32px;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

.contact-box {
    padding: 24px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: 32px;
}

.contact-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-note {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 20px;
}

.contact-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn-whatsapp {
    background: #25d366;
    color: white;
}

.btn-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-email {
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-email:hover {
    background: var(--color-bg-alt);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.specs-box,
.description-box {
    margin-bottom: 32px;
}

.specs-title,
.description-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.specs-list {
    display: grid;
    gap: 12px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.spec-label {
    font-size: 14px;
    color: var(--color-text-light);
}

.spec-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

.description-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-light);
}

.footer {
    background: white;
    border-top: 1px solid var(--color-border);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

.footer-text {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-link {
    font-size: 14px;
    color: var(--color-text-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--color-primary);
}

@media (max-width: 1024px) {
    .product-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-gallery {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .product-title {
        font-size: 24px;
    }
    
    .price-value {
        font-size: 28px;
    }
    
    .product-layout {
        padding: 24px;
    }
    
    .contact-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .main-image {
        height: 300px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .product-detail {
        padding: 40px 0;
    }
}
/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        display: flex;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 100;
        gap: 0;
    }
    
    .nav-menu.active {
        max-height: 400px;
        opacity: 1;
    }
    
    .nav-link {
        width: 100%;
        padding: 12px 16px;
        margin-bottom: 8px;
        display: block;
    }
    
    .lang-switch {
        width: 100%;
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--color-border);
        padding-top: 16px;
        margin-top: 8px;
        justify-content: center;
    }
    
    body.menu-open {
        overflow: hidden;
    }
}