:root {
    --space-xs: 2pt;
    --space-sm: 5pt;
    --space-md: 8pt;
    --space-lg: 12pt;
    --space-xl: 18pt;

    --button-bg: #eee;
}

nav {
    display: flex;
    align-items: center;
    background-color: #bbb;
    padding: var(--space-sm);
}

nav a, #header a {
    text-decoration: none;
    color: black;
}

.corner {
    margin-left: auto;
}

.messages {
    margin: 1rem 2rem;
}

.message {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.message.success { background-color: #d4edda; color: #155724; }
.message.error   { background-color: #f8d7da; color: #721c24; }
.message.warning { background-color: #fff3cd; color: #856404; }

main {
    font: courier;
    margin: var(--space-sm) 2rem var(--space-sm);
    padding: var(--space-sm);
}

@media (width <= 800px) {
    main {
        font: courier;
        margin: var(--space-xs) 1rem var(--space-xs);
        padding: var(--space-xs);
    }
}

.labelled_grid {
    display: grid;
    margin-top: 1rem;
    grid-template-columns: minmax(10rem, min-content) 1fr;
    column-gap: 1rem;
    padding: var(--space-sm);
    row-gap: var(--space-sm);
}

section, .block {
    margin-bottom: var(--space-lg);
}

button, .btn {
    margin: var(--space-sm);
}

.labelled_grid label::after {
    content: ':';
}

#header {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: var(--space-sd);
    margin: var(--space-sm) 0;
    gap: 1rem;
    background: #bbb;
}

#header form {
    display: inline; /* prevent full-width form block */
    margin: 0;
}

.logout-btn {
    margin-left: auto;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font: inherit;
}

.list {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
}

.list tr {
    height: 3em;
}

.list th, .list td {
    margin: 4pt 4pt;
    overflow: hidden;
    text-overflow: ellipsis;
    word-wrap: break-word;
    padding: var(--space-sm);
    border: 1px solid #000;
}

.list th.added-by { width: 10%; min-width: 25ch; }
.list th.date-added { width: 10%; min-width: 25ch; }
.list th.media-type { width: 8%; }
.list th.delete-header { width: 3%; }

.hide-delete th.delete-header,
.hide-delete td.delete-cell {
    display: none;
}

.hidden {
    display: none;
}


.list tr:nth-child(even) {
    background-color: #eee;
}

.centered {
    margin: 4rem;
    display: grid;
    justify-content: center;
}

#list-control-panel {
    display: flex;
    margin: 1em;
    align-items: center;
}

.remove-x {
    display: block;
    font: .8rem/1 sans-serif;
    font-weight: bold;
    color: red;
    width: auto;
    padding: none;
    margin: none;
}

.danger {
    color: red;
}

@media (width <= 800px) {
    .list tr { height: 2em; }
    .list th.added-by { width: 10%; max-width: 5ch; }
    .list th.title { width: 40%; max-width: 5ch; }
    .list th.media-type { width: 10%; max-width: 5ch; }
    .list th.delete-header { width: 4%; max-width: 5ch; }

    .list td.added-by { width: 10%; max-width: 5ch; }

    .list th.date-added, .list td.date-added { display: none; }
}