:root { color-scheme: light dark; }

body {
    display: flex;
    max-width: 900px;
    min-height: 100svh;
    margin: 0 auto;
    padding: 0 1rem;
    flex-direction: column;
    font-family: system-ui, sans-serif;
    line-height: 1.6;
}

main { flex: 1 0 auto; }

.navigation-bar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    align-items: center;
    margin: 0 -1rem 2rem;
    padding: 1rem;
    background: Canvas;
    border-bottom: 1px solid color-mix(in srgb, currentColor 25%, transparent);
}

.current-path { flex: 1 1 22rem; }

input,
button,
.directory-button {
    box-sizing: border-box;
    min-height: 2.5rem;
    padding: .5rem .75rem;
    border: 1px solid color-mix(in srgb, currentColor 35%, transparent);
    border-radius: .4rem;
    font: inherit;
}

input {
    min-width: 0;
    background: Field;
    color: FieldText;
}

.current-path input { width: 100%; }

button,
.directory-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: ButtonFace;
    color: ButtonText;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}

button:disabled,
.directory-button:disabled {
    cursor: not-allowed;
    opacity: .5;
}

.directory-button--icon-only {
    flex: 0 0 3rem;
    width: 3rem;
    height: 3rem;
    min-height: 3rem;
    padding: .3rem;
}

.directory-button--icon-only .directory-button__icon {
    width: 100%;
    height: 100%;
}

.directory-button__icon {
    display: block;
    margin: 0;
    object-fit: contain;
}

.page-header { margin-bottom: 2rem; }

.child-directories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr));
    gap: 1.5rem;
    margin: 0 0 3rem;
    padding: 1rem 0;
}

.child-directories .directory-button {
    flex-direction: column;
    gap: .75rem;
    min-height: 9rem;
    padding: 1rem;
    text-align: center;
    white-space: normal;
}

.child-directories .directory-button__icon {
    width: 5.5rem;
    height: 5.5rem;
}

.directory-button__label {
    max-width: 100%;
    overflow-wrap: anywhere;
}

.directory-brother {
    position: fixed;
    top: 50%;
    z-index: 9;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 5rem;
    border: 1px solid color-mix(in srgb, currentColor 30%, transparent);
    border-radius: .6rem;
    background: color-mix(in srgb, Canvas 88%, transparent);
    color: CanvasText;
    font-size: 3rem;
    line-height: 1;
    text-decoration: none;
    opacity: .65;
    transform: translateY(-50%);
    transition: opacity .15s ease, transform .15s ease;
}

.directory-brother:hover,
.directory-brother:focus-visible {
    opacity: 1;
    transform: translateY(-50%) scale(1.05);
}

.directory-brother--left { left: .75rem; }
.directory-brother--right { right: .75rem; }

.content-image {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.5rem auto;
}

.text-content { margin: 1.5rem 0; }

@media (max-width: 1050px) {
    .directory-brother {
        width: 2.5rem;
        height: 4rem;
        background: color-mix(in srgb, Canvas 94%, transparent);
    }

    .directory-brother--left { left: .25rem; }
    .directory-brother--right { right: .25rem; }
}

@media (max-width: 600px) {
    .navigation-bar { align-items: stretch; }
    .current-path { flex-basis: calc(100% - 4rem); }

}