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

body {
    background: #0a0a0a;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

#particleCanvas {
    display: block;
    cursor: crosshair;
}

.controls {
    position: fixed;
    top: 20px;
    left: 20px;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 300px;
    transition: opacity 0.3s ease;
}

.controls:hover {
    opacity: 0.9;
}

.control-info h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #64ffda;
}

.control-info p {
    font-size: 0.9rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.control-info strong {
    color: #64ffda;
}

@media (max-width: 768px) {
    .controls {
        top: 10px;
        left: 10px;
        padding: 15px;
        max-width: 250px;
    }
    
    .control-info h2 {
        font-size: 1rem;
    }
    
    .control-info p {
        font-size: 0.8rem;
    }
}