html, body {
    margin: 0;
    padding: 0;
    border: 0;
    background-color: var(--background-tertiary);
}
footer {
    border-top: 2px solid var(--text-primary);
    font-weight: bold;
    background-color: var(--background);
    position: sticky;
    bottom: 0;
    width: 100%;
}
footer > center > p {
    margin: 0;
}
body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}
#page {
    flex-grow: 1;
    max-width: 65vw;
    min-width: 45vw;
    margin: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    background-color: var(--background);
    margin-top: 8px;
    margin-bottom: 8px;
}
hr {
    color: var(--text-primary);
    width: 100%;
}
#content {
    flex-grow: 1;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    background-color: var(--background);
    padding: 20px;
}
form {
    display: flex;
    flex-direction: column;
    align-self: center;
}
form > label {
    margin-top: 6px;
}

input:invalid {
    border: 4px dotted var(--text-warning);
}

bold {
    font-weight: bold;
    color: var(--text-warning);
    background-color: var(--background);
}

header {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    position: sticky;
    top: 0;
    width: 100%;
}
a:last-child > .navbutton {
    border-right: none;
}
.button {
    padding: 2px 10px 2px 10px;
    border-right: 2px solid var(--text-primary);
    font-family: inherit;
    font-size: inherit;
    background-color: var(--background);
    border: 2px solid var(--text-primary);
}
.formbutton {
    box-shadow: none;
    border-radius: 0;
    margin-top: 6px;
}
.navbutton {
    border: none;
    border-right: 2px solid var(--text-primary);
    border-bottom: 2px solid var(--text-primary);
}
.button:hover {
    background-color: var(--secondary);
}

input {
    font-family: inherit;
    font-size: inherit;
    border: 4px dotted var(--text-primary);
    background-color: var(--background-seconday);
}
form > select.button {
    background-color: var(--background-seconday);
    border: 4px dotted var(--text-primary);
}

.halfbox {
    width: 50%;
    display: grid;
    flex-grow: 1;
    align-content: start;
}
.formbox {
    display: grid;
    flex-grow: 1;
    align-content: start;
    align-self: start;
}

#page > center > h2 {
    margin-top: 12px;
    margin-bottom: 12px;
}

header > a, header > a:visited, header > a:link {
        text-decoration: none;
        color: var(--text-primary);
        font-weight: bold;
        justify-content: center;
        flex-grow: 1;}

:root {
    --background: #fbf9f4;
    --background-seconday: #fbfaca;
    --background-tertiary: #e0e0e0;
    --primary: #222;
    --secondary: #ccc;
    --text-primary: #4f474a;
    --text-warning: red;
    font-family: monospace;
    font-size: 2em;
    color: var(--text-primary)
}

@media (prefers-color-scheme: dark) {
    :root {
    }
}

@media screen and (max-width: 800px) {
    #page {
        max-width: 100vw;
        min-width: 90vw;
    }
    #content > div {
        width: 100%;
        max-width: unset;
    }
}