/*
Theme Name: LED Industrial Lighting
Theme URI: https://example.com
Author: WordPress Developer
Author URI: https://example.com
Description: Professional LED industrial lighting theme for foreign trade websites. Modern, responsive design with beautiful UI for showcasing industrial LED products.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: led-lighting
Tags: e-commerce, responsive-layout, custom-menu, featured-images, theme-options, translation-ready
*/

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #ff6b00;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e5e5e5;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

/* === HEADER === */
.site-header {
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.site-logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-logo span {
    color: var(--secondary-color);
}

.main-navigation ul {
    display: flex;
    gap: 30px;
}

.main-navigation a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    padding: 8px 0;
    position: relative;
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.main-navigation a:hover::after,
.main-navigation a.current-menu-item::after {
    width: 100%;
}

.header-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.search-btn,
.contact-btn {
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

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

.search-btn:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
}

.contact-btn {
    background: var(--primary-color);
    color: var(--bg-white);
    border: none;
}

.contact-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* === HERO SECTION === */
.hero-section {
    background: linear-gradient(135deg, #0a1628 0%, #1a2d4a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><linearGradient id="g1" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" stop-color="%230066cc" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ff6b00" stop-opacity="0.05"/></linearGradient></defs><circle cx="200" cy="200" r="300" fill="url(%23g1)"/><circle cx="800" cy="800" r="400" fill="url(%23g1)"/></svg>') center/cover;
    opacity: 0.5;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--bg-white);
    margin-bottom: 24px;
}

.hero-content h1 span {
    background: linear-gradient(90deg, var(--secondary-color), #ffaa00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary,
.btn-secondary {
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

.btn-secondary:hover {
    background: var(--bg-white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 50px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--secondary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: var(--secondary-color);
    border-radius: 50%;
    opacity: 0.2;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.2;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.3;
    }
}

/* === FEATURES SECTION === */
.features-section {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header h2 span {
    color: var(--primary-color);
}

.section-header p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    background: var(--bg-light);
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    background: var(--bg-white);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: var(--bg-white);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* === PRODUCTS SECTION === */
.products-section {
    padding: 100px 0;
    background: var(--bg-light);
}

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

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

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 300px;
    background: linear-gradient(135deg, #e8f4fd, #f0f7ff);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--secondary-color);
    color: var(--bg-white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.product-content {
    padding: 24px;
}

.product-category {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.product-card h3:hover {
    color: var(--primary-color);
}

.product-specs {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-gray);
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.btn-view {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.product-price {
    font-size: 24px;
    font-weight: 800;
    color: var(--secondary-color);
}

/* === ABOUT SECTION === */
.about-section {
    padding: 100px 0;
    background: var(--bg-white);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.about-image::after {
    content: '';
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 20px;
    z-index: -1;
}

.about-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
}

.about-content h2 span {
    color: var(--primary-color);
}

.about-content p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-features {
    margin-top: 40px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.feature-check {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 12px;
    font-weight: bold;
}

.about-feature span {
    font-size: 16px;
    color: var(--text-dark);
}

/* === CTA SECTION === */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    text-align: center;
}

.cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === FOOTER === */
.site-footer {
    background: #0a1628;
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo span {
    color: var(--secondary-color);
}

.footer-about p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 16px;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-column h4 {
    color: var(--bg-white);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    display: block;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 10px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

.footer-bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--primary-color);
}

/* Language Switcher Styles */
.language-switcher {
    margin-top: 20px;
}

.language-switcher select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background: var(--bg-white);
    color: var(--text-dark);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.language-switcher select:hover {
    border-color: var(--primary-color);
}

/* Header Actions with Icons */
.header-actions button,
.header-actions a {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Responsive adjustments for footer */
@media (max-width: 768px) {
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 48px;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .about-container {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .main-navigation {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--bg-white);
        padding: 100px 30px;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
    }

    .main-navigation.active {
        right: 0;
    }

    .main-navigation ul {
        flex-direction: column;
        gap: 20px;
    }

    .header-actions {
        display: none;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .stat-item {
        width: 100%;
    }

    .hero-stats {
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }

    .section-header h2 {
        font-size: 26px;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .footer-social {
        flex-wrap: wrap;
    }
}