@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(to top, #7028e4 0%, #e5b2ca 100%);
}

.wrapper {
    width: 500px;
    background: #fff;
    border-radius: 7px;
    padding: 20px 25px 15px;
}

header h1 {
    font-size: 27px;
    font-weight: 500;
}

header p {
    font-size: 18px;
    margin-top: 5px;
}

form {
    margin: 20px 0 27px;
}

form input {
    width: 100%;
    height: 60px;
    outline: none;
    font-size: 19px;
    padding: 0 17px;
    border-radius: 5px;
    border: 1px solid #b3b2b2;
}

form button {
    opacity: 0.7;
    width: 100%;
    border: none;
    outline: none;
    color: #fff;
    cursor: pointer;
    padding: 15px 0;
    font-size: 17px;
    margin-top: 20px;
    border-radius: 5px;
    background: #7028e4;
    pointer-events: none;
}

form input:valid ~ button {
    opacity: 1;
    pointer-events: auto;
}