.article {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.article__header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: var(--spacing-lg);

  @media screen and (min-width: 1024px) {
    display: grid;
    grid-template-columns: 360px 1fr;
  }
}

.article__image {
  border-radius: var(--spacing-lg);
  width: 100%;

  @media screen and (min-width: 1024px) {
    width: 360px;
  }
}

.article__info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md)
}

.article__description {
  font: var(--typography-title-small);
  color: var(--color-text-dimmed)
}

.article__tags {
  --chip-background: var(--color-black);
  --chip-font: var(--typography-body-small);
  --chip-size: 28px;
  --chip-icon-size: 16px;

  display: flex;
  flex-flow: wrap;
  gap: var(--spacing-xs);
}

.article__meta {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.article__created,
.article__author {
  display: flex;
  align-items: center;
  line-height: 1;
  gap: var(--spacing-xs);
}

.article__avatar {
  border-radius: 50%;
  display: block;
}

.article__author a {
  color: var(--color-text-dimmed);

  &:hover {
    color: var(--color-primary);
  }
}

.article__main {
  display: grid;
  gap: var(--spacing-lg);

  @media screen and (min-width: 1024px) {
    grid-template-columns: 360px 1fr;
  }
}

.article__sidebar {
  display: none;
  @media screen and (min-width: 1024px) {
    display: block;
    position: sticky;
    top: calc(var(--page-header-middle-height) + var(--spacing-md));
    order: initial;
    height: calc(100vh - var(--page-header-middle-height) - var(--spacing-md));
  }
}


.article__title {
  font-weight: 700;
}

.article__toc {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);

  height: 100%;
}

.article__toc-title {
  font: var(--typography-title-small);
  margin-bottom: 0;
}

.article__toc-list {
  padding: 0;
  padding-inline-start: 0;
  list-style: none;
  counter-reset: toc;
}

.article__toc-content > .article__toc-list {
  margin-block: 0;
}

.article__toc-item > .article__toc-list {
  position: relative;
  padding-left: 1.5ch;
}

.article__toc-list > *,
.article__toc-item > * {
  margin-block: 0;
}

.article__toc-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xxs);
}

.article__toc-item::marker {
  color: var(--color-border);
}

.article__toc-item {
  counter-increment: toc;
}

.article__toc-link {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--color-text);
  border-radius: var(--spacing-sm);
  font: var(--typography-body-small);
  line-height: 1.25;
  transition: all 200ms var(--transition-cubic-bezier-soft);

  &::before {
    content: counter(toc);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-border-light, #e0e0e0);
    color: var(--color-text-dimmed);
    font-size: 11px;
    line-height: 1;
  }

  &:hover {
    color: var(--link-color);
    background-color: var(--color-background-light, #f5f5f5);
  }
}

.article__toc-link[aria-current="true"] {
  color: var(--color-primary);
  background-color: color-mix(in srgb, var(--color-primary) 8%, transparent);

  &::before {
    background-color: var(--color-primary);
    color: var(--color-white, #fff);
  }
}

.article__toc-content {
  overflow-y: auto;
  height: 100%;
  min-height: 0;
  margin-inline-start: calc((3px + var(--spacing-xxs)) * -1);
  padding: var(--spacing-sm);
  scrollbar-gutter: stable;
  scrollbar-width: thin;

  @media screen and (min-width: 1140px) {
    padding: 0;
  }
}