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

body {
    font-family: 'Poppins', sans-serif;
    background: #0f0f1a;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

header {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.3));
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #00ffff;
    text-shadow: 0 0 10px rgba(0,255,255,0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px rgba(0,255,255,0.5);
    }
    to {
        text-shadow: 0 0 20px rgba(0,255,255,0.8);
    }
}

.subtitle {
    font-size: 1.5rem;
    color: #cccccc;
    margin-bottom: 30px;
}

header .download-top {
    margin-top: 40px;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.features {
    margin-bottom: 60px;
}

h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #00ffff;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 10px;
    backdrop-filter: blur(5px);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.1);
}

.feature-card h3 {
    color: #00ffff;
    margin-bottom: 15px;
}

.download {
    text-align: center;
}

.download-btn {
    background: #00ffff;
    color: #0f0f1a;
    border: none;
    padding: 15px 40px;
    font-size: 1.2rem;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 20px 0;
}

.download-btn:hover {
    background: #66ffff;
    transform: scale(1.05);
}

.version {
    color: #666;
    font-size: 0.9rem;
}

.welcome, .how-to-use, .safety, .faq {
    margin-bottom: 60px;
    background: rgba(255,255,255,0.05);
    padding: 30px;
    border-radius: 10px;
}

.welcome p, .safety p {
    color: #cccccc;
    margin-top: 20px;
    margin-bottom: 30px;
}

.download-top {
    text-align: center;
}

.instructions ol {
    margin-left: 20px;
    color: #cccccc;
}

.instructions li {
    margin: 10px 0;
}

.faq-content {
    display: grid;
    gap: 20px;
}

.faq-item {
    background: rgba(255,255,255,0.03);
    padding: 20px;
    border-radius: 8px;
}

.faq-item h3 {
    color: #00ffff;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
}