@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono&display=swap');

html {
    box-sizing:border-box;

}
body {
    margin: 15px;
    min-height: 90vh;
    font-family: 'Roboto Mono', monospace;
    letter-spacing: 1px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #005FFF;   
}

.container {
    width: 480px;
    height: 630px;
    background: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #031B4E;
    border-radius: 10px;
    box-shadow: 0 5px 30px 10px rgba(0, 0, 0, 0.4);
}

form {
    width: 90%;

}

.form-group {
    height: 65px;
}

label {
    position: relative;
    bottom: 3px;

}

input {
    width: 100% ;
    height: 50px;
    padding: 20px;
    font-size: 15px;
    border: 1px solid gainsboro;
    border-radius: 2px;
    outline: none;
    box-sizing: border-box;
    transition: all 0.3;
}

input:valid {
    border: 1px solid green;
}

input:invalid {
    border: 1px solid red;
}

button{
    cursor: pointer;
    color: white;
    background-color: black;
    border: none;
    border-radius: 5px;
    width: 100%;
    height: 50px;
    font-family: 'Roboto Mono', monospace;
    font-size: 20px;
    letter-spacing: 2px;
    margin-top: 5px;
}

button:hover {
    filter: brightness(200%);
    color: lavender;
}

button:focus {
    outline: none;
}