body, html {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #0d0d0d;
    color: #fff;
}
.login-bg {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.login-container {
    background: #222;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    text-align: center;
}
.login-form input {
    display: block;
    margin: 10px auto;
    padding: 10px;
    width: 200px;
    border-radius: 5px;
    border: none;
}
.login-form button {
    padding: 10px 20px;
    background: #3a9bdc;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.score-list {
    text-align: left;
    margin-top: 20px;
}
canvas {
    background: #111;
    display: block;
    margin: 0 auto;
}
.info-bar {
    text-align: center;
    margin-top: 10px;
    font-size: 20px;
}