static/css/styles.css

/* static/css/styles.css */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f5f5;
}

header {
    background: #333;
    color: #fff;
    padding: 10px;
    text-align: center;
}

.container {
    padding: 20px;
}

#three-canvas {
    width: 100%;
    height: 300px;
    background: #000;
    margin-bottom: 20px;
}

input[type="text"], button {
    padding: 10px;
    font-size: 1em;
}

button {
    cursor: pointer;
}