.toc {
    --hover-size: 0;

    display: grid;
    inline-size: auto;
    gap: var(--block-space) var(--inline-space);
    grid-template-columns: repeat(auto-fit, minmax(max(130px, 12cqi), 1fr));
    letter-spacing: -0.01ch;
    list-style: none;
    outline-offset: var(--inline-space-half);
    padding: 0;
    padding-top: 50px;
    padding-left: 20px;

    pd &:has(turbo-frame > :last-child:nth-child(-n + 2)) {
        @media (min-width: 70ch) {
            grid-template-columns: repeat(auto-fit, minmax(max(130px, 12cqi), 24cqi));
        }
    }

    &:focus:not(:focus-visible) {
        outline: none;
    }

    .toc__container:where(:has(#toc-list:checked)) & {
        display: flex;
        flex-direction: column;
        row-gap: calc(var(--block-space) * 0.3);
    }
}



.toc__container {
    max-inline-size: 70ch;

    &:where(:has(#delete-mode:checked)) {
        .disable-when-deleting {
            cursor: not-allowed;
            filter: grayscale(100%) contrast(0.5);
            opacity: 0.5;
            pointer-events: none;
        }
    }
}

.toc__leaf {
    border: solid 2px transparent;
    color: var(--color-ink);
    container-type: inline-size;
    display: inline-flex;
    flex-direction: column;
    margin: 0;
    scroll-margin-top: 8em;
    text-align: center;

    .toc__container:where(:has(#toc-list:checked)) & {
        align-items: center;
        column-gap: 1ch;
        flex-direction: row;
        justify-content: center;
        row-gap: calc(var(--block-space) * 0.3);
        text-align: start;
    }
}

.toc__title {
    --title-border-color: var(--color-subtle-dark);

    color: inherit;
    display: flex;
    flex-direction: column;
    font-size: var(--font-medium-responsive);
    gap: var(--inline-space);
    line-height: 1.2;
    text-decoration: none;

    .leaf--section &,
    .toc__container:where(:has(#toc-grid:checked)) & {
        font-weight: 700;
    }

    #sidebar &,
    .toc__container:where(:has(#toc-list:checked)) & {
        flex-direction: row;
        flex-grow: 1;
        font-size: inherit;
        white-space: nowrap;

        &:is(a) {
            @media (hover: hover) {
                &:hover {
                    text-decoration-line: underline;
                    text-decoration-thickness: 0.075em;
                }
            }
        }

        :is(.input) {
            field-sizing: content;
            min-inline-size: 20ch;
        }

        &::after {
            border-block-end: 1px dotted var(--title-border-color);
            content: "";
            flex-grow: 1;
            margin-block-end: 0.25em;
        }

        .toc__leaf--section & {
            font-weight: 750;
        }
    }

    .toc__leaf--last-read & {
        --title-border-color: var(--color-marker);
    }
}

.toc__thumbnail {
    aspect-ratio: 6 / 9;
    border-radius: 0.3em;
    border: 1px solid var(--color-subtle-dark);
    color: inherit;
    display: block;
    font-size: clamp(0.5rem, 5cqi, 0.8rem);
    line-height: 1.4;
    margin-block-end: var(--block-space-half);
    overflow: hidden;
    padding: 10cqi;
    position: relative;
    text-align: start;
    text-decoration: none;

    .toc__link {
        background-color: transparent;
        content: "";
        inset: 0;
        position: absolute;
        z-index: 1;

        .toc__container:where(:has(#delete-mode:checked)) & {
            pointer-events: none;
        }
    }

    .toc__leaf--section & {
        align-items: center;
        display: flex;
        font-size: var(--font-medium-responsive);
        font-weight: 900;
        justify-content: center;
    }

    .toc__leaf--picture & {
        padding: 0;

        img {
            block-size: 100%;
            inline-size: 100%;
            object-fit: cover;
        }
    }

    .toc__container:where(:has(#toc-list:checked)) & {
        display: none;
    }

    .heading__link {
        display: none;
    }

    &.toc__thumbnail--dark {
        background-color: var(--color-ink);
        color: var(--color-ink-reversed);
    }
}

.toc__wordcount {
    white-space: nowrap;

    .toc__container:where(:has(#toc-list:checked)) & {
        font-size: 0.8em;
    }
}

/* Delete mode */
.leaf__delete {
    --hover-color: var(--color-negative);
    --hover-size: max(2px, 0.08em);

    display: none;

    #footer &,
    .toc__container:where(:has(#delete-mode:checked)) & {
        display: flex;

        :is(.delete-mode__button:has(input:checked)) {
            --btn-background: var(--color-negative);
        }
    }

    .toc__container:where(:has(#toc-grid:checked)) & .btn {
        margin-block-end: calc(-0.5 * var(--btn-size));
        margin-inline: auto;
        position: relative;
        z-index: 1;
    }
}

.delete-mode__button:has(input:checked) {
    --btn-background: var(--color-negative);
}

.arrange-mode__button:has(input:checked) {
    --btn-background: var(--color-link);
}

body:not(:has(.toc__leaf)) {
    .disable-when-empty {
        cursor: not-allowed;
        filter: grayscale(100%) contrast(0.5);
        opacity: 0.5;
        pointer-events: none;
    }
}