* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;

    background: #0f172a;
    font-family: Arial, sans-serif;
}

h1 {
    background: #ffffff;
    color: #1e293b;

    padding: 40px 60px;

    border-radius: 15px;

    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);

    font-size: 32px;
    text-align: center;
}