style.css

@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500&family=Poppins:ital,wght@0,200;0,400;0,500;0,600;0,700;0,800;0,900;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

*{
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
    overflow: hidden;
}

body {
    height: 100vh;
    background: linear-gradient(80deg, #ec0b0e, #ff00a6);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

h1{
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 20px;
}

fieldset {
    background-color: rgb(0, 0, 0);
    padding: 50px;
    border-radius: 20px;
    border: none;
    width: 250px;
    box-shadow: 4px 8px 20px rgb(0, 0, 0);
}

ol li{
    color: white;
    font-weight: 500;
    padding-bottom: 5px;
}

ol{
    padding-bottom: 30px;
}

legend {
    color: white;
}

label {
    color: white;
    font-weight: 500;
}

input {
    border-radius: 20px;
    border: solid 1px #ff00a6;
    padding: 10px;
}

button {
    border-radius: 20px;
    border: none;
    padding: 15px;
    justify-content: center;
    margin-left: 80px;
    font-size: 15px;
    color: rgb(255, 255, 255);
    background: linear-gradient(80deg, #ec0b0e, #ff00a6);   
    box-shadow: 0px 4px 6px white;
}

button:hover{
    transform: scale(1.1);
    transition: 0.8s;
}