body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-family: Tahoma, Verdana, Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

h1 {
    font-size: 3rem;
    font-weight: bold;
    color: #2c3e50;
}

.container {
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}