@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    text-align: center;
    margin-top: 50px;
    background-image: linear-gradient(to right, #ff0000, #ffa500, #ffff00, #008000, #0000ff, #800080, #4b0082);
}

h1 {
    background: linear-gradient(to right, #16c7e2, #00ff00);
    background-clip: text;
    color: transparent;
}

input {
    margin: 5px;
    padding: 8px;
    font-size: 2em;
    border: 1px #000 solid;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
}

button {
    padding: 8px 16px;
    font-size: 16px;
    cursor: pointer;
}

#message {
    margin-top: 20px;
    font-weight: bold;
}