:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --accent-color: #fd79a8;
    --text-color: #f5f6fa;
    --light-color: #f5f6fa;
    --dark-color: #1a1a2e;
    --bg-color: #1a1a2e;
    --card-bg: #2d3436;
    --header-bg: rgba(26, 26, 46, 0.95);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.preloader-content {
    text-align: center;
    color: white;
}

.preloader-logo {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.preloader-logo::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    transition: width 0.3s ease;
    animation: logoLine 1.5s ease-in-out forwards;
}

@keyframes logoLine {
    0% { width: 0; }
    100% { width: 100%; }
}

.preloader-bar {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    margin: 20px auto;
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(108, 92, 231, 0.2);
}

.preloader-progress {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    background-size: 200% 100%;
    animation: gradientMove 2s linear infinite;
    box-shadow: 0 0 15px rgba(108, 92, 231, 0.5);
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

header {
    background-color: var(--header-bg);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

header.scrolled {
    padding: 15px 0;
    background-color: var(--dark-color);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo span {
    font-weight: 300;
    color: var(--light-color);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--light-color);
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 20px;
    color: var(--light-color);
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--light-color);
    font-size: 1.2rem;
    cursor: pointer;
    margin-right: 15px;
    transition: var(--transition);
}

.theme-toggle:hover {
    color: var(--primary-color);
    transform: rotate(30deg);
}

.light-theme {
    --bg-color: #f5f6fa;
    --text-color: #2d3436;
    --card-bg: white;
    --header-bg: rgba(255, 255, 255, 0.95);
}

.light-theme header {
    background-color: var(--header-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.light-theme header.scrolled {
    background-color: white;
}

.light-theme .logo span,
.light-theme nav ul li a,
.light-theme .nav-toggle,
.light-theme .close-nav {
    color: var(--text-color);
}

.light-theme .bg-light {
    background-color: #f8f9fa;
}

.light-theme .section-header h2 {
    color: #1a1a2e;
}

.light-theme .section-header p {
    color: #555;
}

.light-theme .product-title {
    color: #1a1a2e;
}

.light-theme p {
    color: #333;
}

.light-theme .theme-toggle i {
    content: '\\f185';
}

.light-theme h1, 
.light-theme h2, 
.light-theme h3, 
.light-theme h4, 
.light-theme h5, 
.light-theme h6 {
    color: #1a1a2e;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--light-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

.close-nav {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 20px;
    color: var(--light-color);
}

.hero {
    height: 100vh;
    .light-theme .hero {
        background-image: linear-gradient(rgba(26, 26, 46, 0.7), rgba(26, 26, 46, 0.7)), url('../images/bg.jpg');
    }
    
    .light-theme .hero h1 {
        color: white;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    }
    
    .light-theme .hero p {
        color: rgba(255, 255, 255, 0.9);
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    }
    
    .light-theme .hero-content {
        background-color: rgba(26, 26, 46, 0.7);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    }

    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: white;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    opacity: 0;
    transform: translateY(30px);
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

section {
    padding: 80px 0;
}

.bg-light {
    background-color: #16213e;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
    color: var(--light-color);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-header p {
    color: #a0a0a0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    transform: translateY(50px);
    opacity: 0;
}

.product-card:hover {
    transform: translateY(-10px) !important;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.product-image {
    height: 200px;
    overflow: hidden;
}

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

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

.product-info {
    padding: 20px;
}

.product-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--light-color);
}

.product-link {
    display: inline-block;
    margin-top: 15px;
    padding: 8px 20px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

footer {
    background-color: #0f0f1a;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.footer-column {
    flex: 1;
    min-width: 250px;
    margin-bottom: 30px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-column p {
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: #ddd;
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.social-links a {
    display: inline-block;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    margin-right: 10px;
    transition: var(--transition);
}

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

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.copyright a {
    color: var(--primary-color);
    text-decoration: none;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        background-color: var(--dark-color);
        padding: 80px 20px 20px;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
        z-index: 101;
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav ul li {
        margin: 0 0 20px 0;
    }
    
    .close-nav {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .footer-column {
        flex: 0 0 100%;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 20px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}