body {
    background: linear-gradient(135deg, #0b0c10, #1f2833);
    color: #c5c6c7;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.login, .game {
    background: #1f2833;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
    text-align: center;
}
.login h1, .game h1 {
    color: #66fcf1;
}
input[type="text"] {
    padding: 10px;
    width: 200px;
    margin-bottom: 20px;
    border: none;
    border-radius: 4px;
}
button {
    padding: 10px 20px;
    background: #45a29e;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
button:hover {
    background: #66fcf1;
    color: #000;
}
canvas {
    background: #0b0c10;
    border: 2px solid #66fcf1;
    margin-top: 20px;
}
.scoreboard {
    margin-top: 20px;
    color: #fff;
}