body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #2c3e50;
}

.countdown {
    font-size: 3em;
    font-weight: bold;
    color: #e74c3c;
    background-color: #ecf0f1;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}