/* Articles layout — tools sidebar + article stream/body */

.articles-shell {
  display: grid;
  grid-template-columns: minmax(11rem, 14rem) minmax(0, 1fr);
  gap: 1.25rem 1.75rem;
  align-items: start;
  margin: 0 0 1.5rem;
}

.articles-sidebar {
  position: sticky;
  top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  padding: 0.85rem 0.9rem;
}

.articles-sidebar-title {
  margin: 0 0 0.65rem;
  font-size: var(--font-label-sm-size);
  font-weight: var(--font-label-sm-weight);
  letter-spacing: var(--font-label-sm-spacing);
  text-transform: uppercase;
  color: var(--muted);
}

.articles-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.articles-sidebar-list a {
  display: block;
  padding: 0.35rem 0.45rem;
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
}

.articles-sidebar-list a:hover,
.articles-sidebar-list a:focus-visible {
  background: var(--panel-soft);
  outline: none;
}

.articles-sidebar-list a:focus-visible {
  outline: 2px solid var(--btn-primary);
  outline-offset: 1px;
}

.articles-main {
  min-width: 0;
}

.articles-intro {
  margin: 0 0 1.25rem;
}

.articles-intro h1 {
  margin: 0 0 0.5rem;
}

.articles-intro p {
  margin: 0;
  color: var(--muted);
  max-width: 42rem;
}

.articles-stream {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.articles-stream-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  padding: 1rem 1.1rem;
}

.articles-stream-item h2 {
  margin: 0 0 0.35rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.articles-stream-item h2 a {
  color: var(--text);
  text-decoration: none;
}

.articles-stream-item h2 a:hover,
.articles-stream-item h2 a:focus-visible {
  color: var(--btn-primary);
  text-decoration: underline;
}

.articles-stream-meta {
  margin: 0 0 0.45rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

.articles-stream-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.45;
}

.articles-empty {
  margin: 0;
  padding: 1rem 1.1rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  color: var(--muted);
  background: var(--panel);
}

.articles-article-body {
  max-width: 42rem;
}

.articles-article-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
  .articles-shell {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .articles-sidebar {
    position: static;
  }

  .articles-sidebar-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.25rem 0.5rem;
  }
}

@media (max-width: 480px) {
  .articles-sidebar-list {
    grid-template-columns: 1fr;
  }
}