:root {
    --bg-color: #000;
    --text-color: #fff;
    --accent-color: #3e6ae1;
    --secondary-bg: #111;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.logo {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    transition: opacity 0.3s ease;
}

.nav-links a:hover {
    opacity: 0.7;
}

.lang-selector select {
    background: transparent;
    color: #fff;
    border: 1px solid #fff;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-selector select:hover {
    background: rgba(255, 255, 255, 0.1);
}

.section {
    min-height: 100vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 100px 20px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.hero-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #000 50%, #0a0a0a 100%);
}

#hero h1 {
    font-size: 4rem;
    margin-bottom: 10px;
    font-weight: 700;
    letter-spacing: 3px;
}

#hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-weight: 300;
    letter-spacing: 2px;
}

.content {
    max-width: 1200px;
    width: 100%;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 45px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn.primary {
    background-color: var(--accent-color);
    color: #fff;
}

.btn.primary:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(62, 106, 225, 0.5);
}

.btn.secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid #fff;
}

.btn.secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

#products {
    background: #000;
}

#products h2,
#features h2,
#video h2,
#contact h2 {
    font-size: 2.5rem;
    margin-bottom: 50px;
    font-weight: 700;
    letter-spacing: 1px;
}

.product-grid,
.features-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 50px;
}

.product-card {
    background: var(--secondary-bg);
    padding: 30px;
    border-radius: 15px;
    width: 100%;
    max-width: 400px;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px rgba(62, 106, 225, 0.2);
}

.product-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.product-card p {
    font-size: 0.95rem;
    opacity: 0.8;
}

#features {
    background: #000;
}

.feature-item {
    width: 100%;
    max-width: 280px;
    padding: 20px;
}

.feature-item .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.feature-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.feature-item p {
    font-size: 0.9rem;
    opacity: 0.8;
}

#video {
    background: #000;
}

.video-container {
    width: 100%;
    max-width: 900px;
    aspect-ratio: 16 / 9;
    margin: 0 auto;
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border-radius: 15px;
    border: none;
}

#contact {
    background: #000;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.contact-info a {
    font-size: 1rem;
}

footer {
    padding: 50px;
    background: #000;
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.6;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid #fff;
    border-radius: 15px;
    opacity: 0.5;
    animation: scroll-bounce 2s infinite;
}

@keyframes scroll-bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

@media (max-width: 768px) {
    #navbar {
        padding: 15px 20px;
    }

    .nav-links {
        display: none;
    }

    #hero h1 {
        font-size: 2.5rem;
    }

    #hero p {
        font-size: 1rem;
    }

    #products h2,
    #features h2,
    #video h2,
    #contact h2 {
        font-size: 1.8rem;
    }

    .product-grid,
    .features-grid {
        gap: 20px;
    }

    .product-card {
        width: 100%;
        max-width: 100%;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    #navbar {
        flex-direction: column;
        gap: 15px;
    }

    .logo {
        font-size: 1.2rem;
    }

    #hero {
        padding: 80px 15px;
    }

    #hero h1 {
        font-size: 2rem;
    }

    .section {
        padding: 60px 15px;
    }
}