body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

input, button, select {
    border-radius: 0;
    border: 1px solid #222;
    font-size: 15pt;
    padding: 0.5rem;
}

button, select {
    transition: box-shadow 0.3s;
    border: 0;
    background-color: #222;
    color: #fff;
    box-shadow: #444 5px 5px;
    margin: 1rem;
}

button:hover, select:hover {
    box-shadow: #444 3px 3px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

h2 {
    margin-top: 5rem;
}

h4 {
    margin-top: 3rem;
}

p {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    line-height: 2rem;
}

strong {
    color: #f00;
    font-weight: bold;
}

footer {
    background-color: #222;
    color: #fff;
    font-size: 10pt;
    text-align: center;
    margin: 0;
}

footer p {
    margin: 5px;
    line-height: 1rem;
}

.centered {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

a {
    text-decoration: none;
}

.current {
    text-decoration: underline;
}

code {
    background-color: #222;
    color: #fff;
    border-radius: 3px;
    padding: 5px;
}

nav {
    height: 5rem;
    align-content: center;
}

nav a {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    transition: box-shadow 0.3s;
    background-color: #222;
    color: #fff;
    padding: 1rem;
    margin: 1rem;
    box-shadow: #444 5px 5px;
}

nav a.current {
    box-shadow: none;
}

nav a:hover {
    box-shadow: #444 3px 3px;
}

nav a.current:hover {
    box-shadow: none;
}

main {
    margin: 4rem auto;
    flex: 1;
}

img {
    max-width: 95vw;
}

.links {
    flex: 1;
}

.links a {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-weight: bold;
    font-size: calc(max(2.5vw, 25px));
    color: white;
}

.link {
    transition: box-shadow 0.3s;
    box-shadow: #444 5px 5px;
    margin: 0 auto;
    height: calc(max(10vw, 120px));
    width: calc(max(10vw, 120px));
    background-color: #222;
    align-content: center;
}

.link:hover {
    box-shadow: #444 3px 3px;
}

.about {
    margin-top: 8rem;
}

.about h3 {
    margin-top: 4rem;
}