:root {
    --bg-color: #222;
    --fg-color: #555;
    --text-color: #dbdbdb;
    --pad-datasets: 1rem;
    --pad-main: 2rem;
    --min-card-size: 60ch;
    --corner-radius: 1rem;
    font-size: 12pt;
}

body {
    background-color: var(--bg-color, black);
    color: var(--text-color, white);
}

main {
    max-width: calc(2 * var(--min-card-size) + var(--pad-main) + var(--pad-datasets));
    padding-inline: var(--pad-main);
    margin-inline: auto;
    container-type: inline-size;
}

header {
    text-align: center;
    margin-inline: .75rem;
}

#tool-bar {
    display: flex;
    flex-direction: row;
    float: right;
}

#search-bar {
    background-color: var(--fg-color, darkgrey);
    padding: .5rem 1rem;
    width: 100%;
    border-radius: 1.5rem;
}

#search-entry {
    background: none;
    border: none;
    color: var(--text-color);
}

.datasets {
    padding-inline: var(--pad-datasets);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--min-card-size), 1fr));
    gap: 1rem;
}

@container (width < 80ch) {
    .datasets {
        grid-template-columns: 1fr;
    }
}

.dataset {
    padding: 1rem 2rem;
    background-color: var(--fg-color, darkgrey);
    border-radius: var(--corner-radius);
    list-style: none;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
}

.upvote {
    margin-left: 1rem;
    margin-block: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5em;
}
/* Buttons */
.upvote-btn, .downvote-btn, .search-btn {
    background: var(--icon-url) no-repeat;
    background-size: contain;
    border: none;
    width: var(--icon-size);
    height: var(--icon-size);
    padding: 0;
    overflow: hidden;
    color: transparent;
    cursor: pointer;
}

.downvote-btn, .upvote-btn{
    --icon-url: url(triangle.svg);
    --icon-size: 2rem;
}

.downvote-btn {
    transform: rotate(180deg);
}

.search-btn {
    --icon-url: url(looking-glass.svg);
    --icon-size: 1rem;
}

:is(.upvote-btn, .downvote-btn, .search-btn):is(:hover, :focus-visible) {
    filter: brightness(1.5);
}

:is(.upvote-btn, .downvote-btn, .search-btn):active {
    filter: brightness(1.75);
}