:root {
    --brand: #0646ad;
    --text: #444;
    --error: red;
    --ok: green;
}

body {
    margin: 0;
    font: 400 16px/1.625 'Open Sans', Arial, Helvetica, sans-serif;
    color: var(--text);
}

.top {
    padding: 1em;
    box-shadow: 0 3px 5px 0 rgba(50, 50, 50, 0.75);
}

.logo {
    height: 54px;
}

.content {
    margin: 2em;
}

input[type="file"] {
    display: block;
    min-width: 50%;
    font-size: 110%;
    cursor: pointer;
}

.button {
    display: inline-block;
    margin: 1em 0;
    padding: 15px 25px;
    border: 1px solid var(--brand);
    border-radius: 50px;
    background: transparent;
    color: var(--brand);
    font: 700 16px 'Open Sans', Arial, Helvetica, sans-serif;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
}

.button:hover {
    background: var(--brand);
    color: #fff;
}

.error {
    color: var(--error);
}

.health {
    font-size: 150%;
    font-weight: 700;
}

.health-ok {
    color: var(--ok);
}

.health-fail {
    color: var(--error);
}