/* ============================================================
   Blog — index + post
   ============================================================ */

.blog-hero { padding-block: clamp(1.5rem, 3vw, 2.5rem) 0; }
.blog-hero__title { font-size: clamp(2rem, 5vw, 3.25rem); margin-top: 16px; max-width: 16ch; }
.blog-hero__lede { margin-top: 16px; max-width: 52ch; }

.blog-toolbar {
  display: flex; align-items: center; justify-content: flex-end; gap: 12px;
  margin-top: clamp(1.5rem, 3vw, 2rem);
}
.blog-search {
  position: relative; flex: 1; max-width: 340px;
}
.blog-search .icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--ink-faint); }
.blog-search input { padding-left: 42px; }
.blog-sort {
  height: 48px; padding: 0 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--paper);
  font-size: 0.875rem; font-weight: 700; color: var(--ink);
}

.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 2.2fr);
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
  padding-block: clamp(1.5rem, 3vw, 2.5rem) clamp(3rem, 7vw, 5rem);
}

/* ---------- Sidebar ---------- */
.blog-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 90px; }
.blog-sidebar__card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
}
.blog-sidebar__title {
  font-size: 0.6875rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--crimson); margin-bottom: 14px;
}
.blog-cat-list { display: flex; flex-direction: column; gap: 2px; }
.blog-cat-list a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 700; color: var(--ink-soft);
  transition: background .15s var(--ease), color .15s var(--ease);
}
.blog-cat-list a:hover { background: rgba(9,9,11,0.04); color: var(--ink); }
.blog-cat-list a[aria-current="page"] { background: var(--crimson-wash); color: var(--crimson-deep); }
.blog-cat-list .icon { flex-shrink: 0; color: var(--ink-faint); }
.blog-cat-list a[aria-current="page"] .icon { color: var(--crimson); }
.blog-cat-list__label { flex: 1; }
.blog-cat-list__count {
  font-size: 0.6875rem; font-weight: 800;
  padding: 2px 8px; border-radius: var(--radius-pill);
  background: rgba(9,9,11,0.06); color: var(--ink-faint);
}
.blog-cat-list a[aria-current="page"] .blog-cat-list__count { background: var(--crimson); color: #fff; }

.blog-newsletter { background: var(--crimson-wash); border: none; }
.blog-newsletter__icon {
  width: 40px; height: 40px; display: grid; place-items: center;
  background: #fff; color: var(--crimson); border-radius: 50%;
  box-shadow: 0 6px 16px -4px rgba(255,1,64,0.24);
  margin-bottom: 12px;
}
.blog-newsletter h3 { font-size: 1rem; font-weight: 800; }
.blog-newsletter p { margin-top: 6px; font-size: 0.8125rem; color: var(--ink-soft); }
.blog-newsletter form { margin-top: 14px; display: flex; flex-direction: column; gap: 10px; }
.blog-newsletter input { height: 44px; }
.blog-newsletter .form-status { margin: 0; padding: 10px 12px; font-size: 0.75rem; }

.blog-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.blog-tag {
  font-size: 0.75rem; font-weight: 700; color: var(--crimson-deep);
  background: var(--crimson-wash);
  padding: 7px 13px; border-radius: var(--radius-pill);
}

/* ---------- Post grid + cards ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.blog-card {
  display: flex; flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}
.blog-card:hover { transform: translateY(-3px); box-shadow: var(--lift-2); }
.blog-card__cover {
  position: relative;
  aspect-ratio: 16 / 10.5;
  background: linear-gradient(150deg, var(--crimson-wash), #fff 78%);
  display: grid; place-items: center;
  color: rgba(255,1,64,0.35);
}
.blog-card__cover .icon { width: 40px; height: 40px; }
.blog-card__badge {
  position: absolute; top: 12px; left: 12px;
  font-size: 0.6875rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase;
  background: var(--paper); color: var(--crimson);
  padding: 6px 12px; border-radius: var(--radius-pill);
  box-shadow: var(--lift-1);
}
.blog-card__body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.blog-card__meta { display: flex; align-items: center; gap: 6px; font-size: 0.75rem; color: var(--ink-faint); font-weight: 600; }
.blog-card__meta .icon { flex-shrink: 0; }
.blog-card__meta span + span { margin-left: 6px; }
.blog-card__title { margin-top: 10px; font-size: 1.0625rem; font-weight: 800; line-height: 1.35; }
.blog-card__title a { color: var(--ink); }
.blog-card__title a:hover { color: var(--crimson); }
.blog-card__excerpt { margin-top: 8px; font-size: 0.875rem; color: var(--ink-soft); line-height: 1.5; flex: 1; }
.blog-card__more {
  margin-top: 14px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.8125rem; font-weight: 800; color: var(--crimson);
}
.blog-card__more .icon { transition: transform .15s var(--ease); }
.blog-card:hover .blog-card__more .icon { transform: translateX(3px); }

.blog-empty { padding: clamp(3rem, 6vw, 5rem) 0; text-align: center; color: var(--ink-soft); }

/* ---------- Single post ---------- */
.post-hero { padding-block: clamp(1.5rem, 3vw, 2rem) 0; }
.post-hero__badge { display: inline-block; }
.post-hero__title { font-size: clamp(1.875rem, 4.5vw, 3rem); margin-top: 14px; max-width: 26ch; }
.post-hero__lede { margin-top: 14px; max-width: 62ch; }
.post-hero__meta {
  margin-top: 18px; display: flex; align-items: center; flex-wrap: wrap; gap: 6px 18px;
  font-size: 0.8125rem; color: var(--ink-faint); font-weight: 600;
}
.post-hero__meta > span { display: inline-flex; align-items: center; gap: 6px; }
.post-share { display: flex; align-items: center; gap: 8px; }
.post-share__label { font-size: 0.75rem; font-weight: 700; color: var(--ink-faint); margin-right: 2px; }
.post-share button {
  width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 50%; border: 1px solid var(--line-strong); background: var(--paper); color: var(--ink-soft);
  transition: border-color .15s var(--ease), color .15s var(--ease);
}
.post-share button:hover { border-color: var(--crimson); color: var(--crimson); }
.post-share button.is-copied { border-color: var(--verified); color: var(--verified); }

.post-cover {
  margin-top: 24px;
  aspect-ratio: 21 / 9;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--crimson-wash), #fff 75%);
  display: grid; place-items: center;
  color: rgba(255,1,64,0.3);
}
.post-cover .icon { width: 64px; height: 64px; }

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
  padding-block: clamp(2rem, 4vw, 3rem) clamp(3rem, 7vw, 5rem);
}

.post-body { max-width: 68ch; min-width: 0; }
.post-body > .prose-intro { font-size: 1.0625rem; color: var(--ink-soft); line-height: 1.7; }
.post-section { margin-top: clamp(2rem, 4vw, 2.75rem); scroll-margin-top: 100px; }
.post-section__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: var(--radius-sm);
  background: var(--crimson-wash); color: var(--crimson);
  font-size: 0.8125rem; font-weight: 900;
  margin-bottom: 10px;
}
.post-section__heading, .post-content h2 { font-size: 1.375rem; font-weight: 800; margin: 0 0 12px; line-height: 1.3; color: var(--ink); }
.post-content p { font-size: 1rem; color: var(--ink-soft); line-height: 1.75; margin-bottom: 1.1em; }
.post-content p:last-child { margin-bottom: 0; }
.post-content strong { color: var(--ink); }
.post-content a { color: var(--crimson); text-decoration: underline; text-decoration-color: rgba(255,1,64,0.35); text-underline-offset: 2px; }
.post-content a:hover { text-decoration-color: var(--crimson); }
.post-content ul, .post-content ol { margin: 0 0 1.1em; padding-left: 1.3em; color: var(--ink-soft); font-size: 1rem; line-height: 1.7; }
.post-content li { margin-bottom: 0.4em; }

.post-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); margin: 1.5em 0; }
.post-content table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.post-content thead { background: rgba(9,9,11,0.03); }
.post-content th { text-align: left; font-weight: 800; color: var(--ink); padding: 12px 16px; white-space: nowrap; }
.post-content td { padding: 12px 16px; color: var(--ink-soft); border-top: 1px solid var(--line); }
.post-content tr:hover td { background: rgba(9,9,11,0.015); }

.post-faq { margin-top: clamp(2rem, 4vw, 2.75rem); }
.post-faq__item {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 20px; margin-bottom: 10px;
}
.post-faq__q { font-weight: 800; font-size: 0.9375rem; color: var(--ink); display: flex; gap: 10px; }
.post-faq__q .icon { flex-shrink: 0; color: var(--crimson); margin-top: 2px; }
.post-faq__a { margin-top: 8px; padding-left: 26px; font-size: 0.9375rem; color: var(--ink-soft); line-height: 1.65; }

.post-tldr {
  margin-top: clamp(2rem, 4vw, 2.75rem);
  padding: 22px 24px;
  background: var(--void); color: var(--on-void);
  border-radius: var(--radius-lg);
}
.post-tldr__label {
  font-size: 0.6875rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--crimson); margin-bottom: 10px; display: block;
}
.post-tldr p { font-size: 0.9375rem; line-height: 1.7; color: var(--on-void-soft); margin: 0; }
.post-tldr a { color: #fff; text-decoration: underline; text-decoration-color: rgba(255,255,255,0.4); }

/* ---------- Post sidebar ---------- */
.post-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 90px; }
.post-sidebar__card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 22px;
}
.post-author { display: flex; gap: 14px; align-items: flex-start; }
.post-author__avatar {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: var(--crimson-wash); color: var(--crimson);
  display: grid; place-items: center; font-weight: 900; font-size: 1.125rem;
}
.post-author__label { font-size: 0.6875rem; color: var(--ink-faint); font-weight: 700; }
.post-author__name { font-size: 0.9375rem; font-weight: 800; color: var(--ink); margin-top: 2px; }
.post-author__role { font-size: 0.75rem; color: var(--ink-faint); margin-top: 1px; }
.post-author__bio { margin-top: 12px; font-size: 0.8125rem; color: var(--ink-soft); line-height: 1.6; }

.post-toc { display: flex; flex-direction: column; gap: 2px; }
.post-toc a {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem; font-weight: 700; color: var(--ink-soft);
  border-left: 2px solid transparent;
}
.post-toc a:hover { color: var(--ink); background: rgba(9,9,11,0.03); }
.post-toc a.is-active { color: var(--crimson); border-left-color: var(--crimson); background: var(--crimson-wash); }
.post-toc__num { font-variant-numeric: tabular-nums; font-weight: 800; color: var(--ink-faint); font-size: 0.75rem; flex-shrink: 0; width: 18px; }
.post-toc a.is-active .post-toc__num { color: var(--crimson); }

.post-related { display: flex; flex-direction: column; gap: 14px; }
.post-related__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.post-related__head a { font-size: 0.75rem; font-weight: 800; color: var(--crimson); display: inline-flex; align-items: center; gap: 4px; }
.post-related-item { display: flex; gap: 12px; align-items: center; }
.post-related-item__cover {
  width: 56px; height: 56px; border-radius: var(--radius-sm); flex-shrink: 0;
  background: linear-gradient(150deg, var(--crimson-wash), #fff 80%);
  display: grid; place-items: center; color: rgba(255,1,64,0.35);
}
.post-related-item__body { min-width: 0; }
.post-related-item__title { font-size: 0.8125rem; font-weight: 800; color: var(--ink); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-related-item__meta { font-size: 0.6875rem; color: var(--ink-faint); margin-top: 3px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .blog-layout { grid-template-columns: minmax(0, 1fr); }
  .blog-sidebar { position: static; order: 2; }
  .blog-grid { order: 1; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .post-layout { grid-template-columns: minmax(0, 1fr); }
  .post-sidebar { position: static; }
}
@media (max-width: 620px) {
  .blog-grid { grid-template-columns: minmax(0, 1fr); }
  .blog-toolbar { flex-wrap: wrap; }
  .blog-search { max-width: none; width: 100%; }
}