body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 0;
    text-align: center;
}
header {
    background-color: #007bff;
    color: white;
    padding: 1rem;
}
main {
    padding: 20px;
    max-width: 900px;
    margin: auto;
}
.video-container, .score-container {
    margin-bottom: 30px;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
iframe {
    max-width: 100%;
}
footer {
    margin-top: 30px;
    padding: 1rem;
    background-color: #333;
    color: white;
}