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

body {
    color: #5D6063;
    background-color: #EAEDF0;
    font-family: "Helvetica", "Arial", sans-serif;
    font-size: 16px;
    line-height: 1.3;

    display: flex;
    flex-direction: column;
    align-items: center;
}

.form-header {
    text-align: center;
    background-color: #F6F7F8;
    border: 1px solid #D6D9DC;
    border-radius: 3px;

    width: 80%;
    margin: 40px 0;
    padding: 50px;
}

.form-header h1 {
    font-size: 30px;
    margin-bottom: 20px;
}

.form-header ul {
    list-style: none;
    text-align: left;
    margin-left: 20px;
    margin-top: 20px;
    margin-bottom: 20px;
}

.form-header li {
    margin-bottom: 5px;
}

.form-header li:before {
    content: "●";
    padding-right: 10px;
}

.form-header li.valid {
    color: green;
}

.form-header li.valid:before {
    content: "✔";
    padding-right: 10px;
}

.form-header li.invalid {
    color: red;
}

.form-header li.invalid:before {
    content: "✖";
    padding-right: 10px;
}

.form {
    background-color: #F6F7F8;
    border: 1px solid #D6D9DC;
    border-radius: 3px;

    width: 80%;
    padding: 50px;
    margin: 0 0 40px 0;
}

.form-row {
    margin-bottom: 40px;
    display: flex;
    justify-content: flex-start;
    flex-direction: column;
    flex-wrap: wrap;
}

.form-row input[type='text'],
.form-row input[type='password'],
.form-row input[type='email'] {
    background-color: #FFFFFF;
    border: 1px solid #D6D9DC;
    border-radius: 3px;
    width: 100%;
    padding: 7px;
    font-size: 14px;
}

.form-row input[type='text']:invalid,
.form-row input[type='password']:invalid,
.form-row input[type='email']:invalid {
    border: 2px solid #D55C5F;
    color: #D55C5F;
    box-shadow: none; /* Remove default red glow in Firefox */
}

.form-row textarea:invalid {
    border: 2px solid #D55C5F;
    color: #D55C5F;
    box-shadow: none; /* Remove default red glow in Firefox */
}

.form-row label {
    margin-bottom: 15px;
}

.form-row textarea {
    font-family: "Helvetica", "Arial", sans-serif;
    font-size: 14px;

    border: 1px solid #D6D9DC;
    border-radius: 3px;

    min-height: 200px;
    margin-bottom: 10px;
    padding: 7px;
    resize: none;
}

.form-row .instructions {
    color: #999999;
    font-size: 14px;
    margin-bottom: 30px;
}

.form-row .checkbox-label {
    margin-top: 15px;
    margin-bottom: 0;
}

.form-row .checkbox-label span {
    margin-left: 5px;
}

.form-row button {
    font-size: 16px;
    font-weight: bold;

    color: #FFFFFF;
    background-color: #5995DA;

    border: none;
    border-radius: 3px;

    padding: 10px 40px;
    cursor: pointer;
}

.form-row button:hover {
    background-color: #76AEED;
}

.form-row button:active {
    background-color: #407FC7;
}

@media only screen and (min-width: 700px) {
    .form-header,
    .form {
        width: 650px;
    }

    .form-row {
        flex-direction: row;
        align-items: flex-start; /* To avoid stretching */
        margin-bottom: 20px;
    }

    .form-row input[type='text'],
    .form-row input[type='password'],
    .form-row input[type='email'],
    .form-row select,
    .form-row textarea {
        width: 250px;
        height: initial;
    }

    .form-row label {
        text-align: right;
        width: 170px;
        margin-top: 7px;
        padding-right: 20px;
    }

    .form-row .instructions {
        margin-left: 170px;
    }

    .form-row .checkbox-label {
        margin-top: 0px;
        margin-left: 170px;
        width: auto;
    }

    .form-row button {
        margin-left: 170px;
    }
}