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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    overflow-x: hidden;
    background: #000;
    color: #fff;
}

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.nav-menu.visible {
    opacity: 1;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding: 0 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.1);
}

/* Landing Section */
.landing-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    background: radial-gradient(circle at center, #1a1a2e 0%, #000 100%);
}

.landing-container {
    max-width: 1200px;
    width: 100%;
    text-align: center;
}

.landing-container h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-transform: lowercase;
    letter-spacing: 0.1em;
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 4rem;
    color: #aaa;
    text-transform: lowercase;
}

.version-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.version-link {
    display: block;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    text-decoration: none;
    color: #fff;
    transition: transform 0.3s ease, background 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.version-link:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.version-link h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-transform: lowercase;
}

.version-link p {
    color: #aaa;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .landing-container h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .nav-container {
        gap: 1rem;
        padding: 0 1rem;
        flex-wrap: wrap;
    }
    
    .nav-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .version-links {
        grid-template-columns: 1fr;
    }
}