.rd-blog-toc {
    --rd-blog-toc-offset: 80px;
    --rd-blog-toc-sticky-offset: 100px;
    --rd-blog-toc-indent: 20px;
    --rd-blog-toc-indicator-color: currentColor;
    --rd-blog-toc-indicator-width: 4px;
    --rd-blog-toc-indicator-height: 1em;
    --rd-blog-toc-indicator-radius: 3px;
    --rd-blog-toc-indicator-spacing: 8px;
    position: relative;
    box-sizing: border-box;
}

.rd-blog-toc *,
.rd-blog-toc *::before,
.rd-blog-toc *::after {
    box-sizing: border-box;
}

/* Sticky */
.rd-blog-toc--sticky {
    position: sticky;
    top: var(--rd-blog-toc-sticky-offset);
    align-self: start;
    max-height: calc(100vh - var(--rd-blog-toc-sticky-offset));
    overflow-y: auto;
}

/*
 * Sticky needs room to travel: the nav's containing block must be taller
 * than the nav itself. Elementor wraps widgets in .elementor-widget-container
 * > .elementor-widget-blog_table_of_contents, both auto-height by default.
 * Stretch the whole chain so sticky works in flexbox containers and in
 * legacy section/column layouts.
 */
.elementor-widget-blog_table_of_contents:has(.rd-blog-toc--sticky) {
    align-self: stretch;
}

.elementor-widget-blog_table_of_contents:has(.rd-blog-toc--sticky),
.elementor-widget-blog_table_of_contents:has(.rd-blog-toc--sticky) > .elementor-widget-container {
    height: 100%;
}

.elementor-column:has(.rd-blog-toc--sticky) > .elementor-widget-wrap {
    height: 100%;
    align-content: flex-start;
}

/* Header */
.rd-blog-toc__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.rd-blog-toc__title {
    margin: 0;
    font-size: inherit;
    font-weight: 600;
}

.rd-blog-toc__toggle {
    display: none;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: transparent;
    border: none;
    padding: 0;
    font: inherit;
    color: inherit;
    cursor: pointer;
    text-align: left;
}

.rd-blog-toc__toggle-text {
    font-weight: 600;
}

.rd-blog-toc__toggle-icon::after {
    content: '+';
    margin-left: 0.5rem;
}

.rd-blog-toc--mobile-open .rd-blog-toc__toggle-icon::after {
    content: '−';
}

/* Lists */
.rd-blog-toc__list,
.rd-blog-toc__sublist {
    list-style: none;
    margin: 0;
    padding: 0;
}

.rd-blog-toc__sublist {
    padding-left: var(--rd-blog-toc-indent);
}

.rd-blog-toc__item {
    position: relative;
    margin-bottom: 0.5rem;
}

.rd-blog-toc__item:last-child {
    margin-bottom: 0;
}

.rd-blog-toc__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    transition: color 0.2s ease;
    padding-left: calc(var(--rd-blog-toc-indicator-spacing) + var(--rd-blog-toc-indicator-width));
}

.rd-blog-toc__link:hover {
    text-decoration: underline;
}

/* Indicator */
.rd-blog-toc__indicator {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: var(--rd-blog-toc-indicator-width);
    height: var(--rd-blog-toc-indicator-height);
    background-color: var(--rd-blog-toc-indicator-color);
    border-radius: var(--rd-blog-toc-indicator-radius);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.rd-blog-toc__item.is-active .rd-blog-toc__indicator {
    opacity: 1;
}

.rd-blog-toc--indicator-none .rd-blog-toc__link,
.rd-blog-toc--indicator-background .rd-blog-toc__link {
    padding-left: 0;
}

.rd-blog-toc--indicator-background .rd-blog-toc__item.is-active {
    border-radius: 0.25rem;
}

.rd-blog-toc--indicator-dot .rd-blog-toc__indicator {
    height: var(--rd-blog-toc-indicator-width);
    border-radius: 50%;
}

.rd-blog-toc__item.is-active .rd-blog-toc__link {
    font-weight: 600;
}

/* Numbering */
.rd-blog-toc--numbering-simple .rd-blog-toc__list {
    counter-reset: toc-simple;
}

.rd-blog-toc--numbering-simple .rd-blog-toc__item {
    counter-increment: toc-simple;
}

.rd-blog-toc--numbering-simple .rd-blog-toc__link::before {
    content: counter(toc-simple) '. ';
    font-weight: 400;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__list {
    counter-reset: toc-h2 toc-h3 toc-h4 toc-h5 toc-h6;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-2 {
    counter-increment: toc-h2;
    counter-reset: toc-h3;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-3 {
    counter-increment: toc-h3;
    counter-reset: toc-h4;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-4 {
    counter-increment: toc-h4;
    counter-reset: toc-h5;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-5 {
    counter-increment: toc-h5;
    counter-reset: toc-h6;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-6 {
    counter-increment: toc-h6;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-2 > .rd-blog-toc__link::before {
    content: counter(toc-h2) '. ';
    font-weight: 400;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-3 > .rd-blog-toc__link::before {
    content: counter(toc-h2) '.' counter(toc-h3) '. ';
    font-weight: 400;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-4 > .rd-blog-toc__link::before {
    content: counter(toc-h2) '.' counter(toc-h3) '.' counter(toc-h4) '. ';
    font-weight: 400;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-5 > .rd-blog-toc__link::before {
    content: counter(toc-h2) '.' counter(toc-h3) '.' counter(toc-h4) '.' counter(toc-h5) '. ';
    font-weight: 400;
}

.rd-blog-toc--numbering-hierarchical .rd-blog-toc__item--level-6 > .rd-blog-toc__link::before {
    content: counter(toc-h2) '.' counter(toc-h3) '.' counter(toc-h4) '.' counter(toc-h5) '.' counter(toc-h6) '. ';
    font-weight: 400;
}

/* Placeholder */
.rd-blog-toc--placeholder .rd-blog-toc__placeholder-note {
    font-size: 0.85em;
    opacity: 0.7;
    margin-top: 0.5rem;
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

/* Mobile */
@media (max-width: 767px) {
    .rd-blog-toc--mobile-hidden {
        display: none !important;
    }

    .rd-blog-toc--mobile-collapsible:not(.rd-blog-toc--mobile-open) .rd-blog-toc__list-wrapper {
        display: none;
    }

    .rd-blog-toc__toggle {
        display: inline-flex;
    }

    .rd-blog-toc__title--desktop {
        display: none;
    }
}