body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #e6f7ff;
    color: #444;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

h1 {
    color: #008080;
    border-bottom: 2px solid #008080;
    padding-bottom: 10px;
}