/* ListView専用レイアウト */
.content {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 1rem;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

aside {
    background: #fff;
    padding: 1rem;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    width: auto;
}

aside h2 {
    margin-top: 0;
    font-size: 1.25rem;
    border-bottom: 1px solid #ddd;
    padding-bottom: 0.5rem;
}

main {
    background: #fff;
    padding: 1rem;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin: 0px;
}

@media (max-width: 600px) {
    .content { display: block; }
    aside { margin-bottom: 1rem; }
}

/* ネストされたリストのインデント */
#file-list ul {
    padding-left: 1rem;
    list-style: none;
}

#file-list details > summary {
    cursor: pointer;
    padding: 0.25rem 0;
}

#file-list details[open] > summary {
    font-weight: bold;
}