main {
    display: grid;
    grid-template-columns: 50% 50%;
}

main > div {
    padding: 1em;
    overflow: auto;
}

#program-list {
    max-height: 60vh;
    scrollbar-width: thin;
    scrollbar-color: darkblue #8ad;
}

#program-list::-webkit-scrollbar {
    width: 0.25em;
    height: 0.25em;
}

#program-list::-webkit-scrollbar-track {
    background: #8ad;
}

#program-list::-webkit-scrollbar-thumb {
    background: darkblue;
}

.programs {
    display: grid;
    grid-auto-rows: 10em;
    grid-template-columns: repeat(auto-fit, minmax(10em, 1fr));
    grid-gap: 0.8em;
}

.program {
    background-color: #099;
}

.program a {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
    text-decoration: none;
    color: inherit;
    transition: color 0.5s;
}

.program:hover a {
    color: white;
}

.program .summary {
    font-weight: bold;
    text-align: center;
    transition: 0.5s;
}

.program:hover .summary {
    opacity: 1;
}

details summary .duration {
    font-family: monospace;
}

.details.active > *:first-child {
    margin-top: 0;
}