/* ── Design tokens (matches joexbayer.dev) ── */
:root {
  --surface-primary:   #ffffff;
  --surface-secondary: #f6f8fa;
  --surface-tertiary:  #eef1f5;
  --surface-inset:     #d8dee4;

  --border-primary:    #d1d9e0;
  --border-secondary:  #b8c1cc;

  --text-primary:      #1f2328;
  --text-secondary:    #59636e;
  --text-tertiary:     #818b98;

  --accent:            #2f81f7;
  --accent-hover:      #1f6feb;
  --accent-muted:      rgba(47, 129, 247, 0.08);
  --danger:            #d1242f;

  --font-sans:  'Space Grotesk', system-ui, sans-serif;
  --font-mono:  'IBM Plex Mono', 'Courier New', monospace;

  --radius-sm:  0.5rem;
  --radius-md:  1rem;
  --radius-lg:  1.5rem;
}

.dark {
  --surface-primary:   #0d1117;
  --surface-secondary: #161b22;
  --surface-tertiary:  #21262d;
  --surface-inset:     #161b22;

  --border-primary:    #21262d;
  --border-secondary:  #30363d;

  --text-primary:      #e6edf3;
  --text-secondary:    #8b949e;
  --text-tertiary:     #6e7681;

  --accent:            #58a6ff;
  --accent-hover:      #388bfd;
  --accent-muted:      rgba(88, 166, 255, 0.1);
  --danger:            #f85149;
}

/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--surface-primary);
  min-height: 100%;
  transition: background-color 200ms ease, color 200ms ease;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--accent-hover); }

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-primary);
  border-bottom: 1px solid var(--border-primary);
  transition: background-color 200ms ease;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 3.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
}
.nav-brand:hover { text-decoration: none; color: var(--text-primary); }

.brand-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.45rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1;
}

.brand-name {
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.search-form { display: flex; align-items: center; gap: 0; }

.search-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 150ms, color 150ms;
  flex-shrink: 0;
}
.search-icon-btn:hover { background: var(--surface-tertiary); color: var(--text-primary); text-decoration: none; }

.search-input {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background: var(--surface-primary);
  color: var(--text-primary);
  width: 180px;
  transition: border-color 150ms, box-shadow 150ms;
  outline: none;
}
.search-input::placeholder { color: var(--text-tertiary); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.btn-new {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  transition: background 150ms;
}
.btn-new:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 150ms, color 150ms;
}
.theme-toggle:hover { background: var(--surface-tertiary); color: var(--text-primary); }

.icon-sun { display: block; }
.icon-moon { display: none; }
.dark .icon-sun { display: none; }
.dark .icon-moon { display: block; }

/* ── Main layout ── */
.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* ── Homepage ── */
.page-home {}

.home-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-primary);
  flex-wrap: wrap;
}

.home-stat {
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.home-cat-form {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.home-cat-input {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  padding: 0.3rem 0.6rem;
  border: none;
  border-bottom: 1px solid var(--border-primary);
  background: transparent;
  color: var(--text-primary);
  outline: none;
  width: 140px;
  transition: border-color 150ms;
}
.home-cat-input:focus { border-bottom-color: var(--accent); }
.home-cat-input::placeholder { color: var(--text-tertiary); }
.home-cat-parent { width: 130px; }

.home-cat-btn {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 150ms, color 150ms;
}
.home-cat-btn:hover { background: var(--surface-tertiary); color: var(--text-primary); }

.home-cats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0 2.5rem;
  margin-bottom: 2.5rem;
}

.home-cat-col {
  padding-bottom: 1.5rem;
}

.home-cat-name {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  padding-bottom: 0.4rem;
  margin-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-primary);
}
.home-cat-name:hover { color: var(--accent); text-decoration: none; }

.home-article-link {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.15rem 0;
  transition: color 150ms;
}
.home-article-link:hover { color: var(--accent); text-decoration: none; }

.home-subcat {
  margin-top: 0.6rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--border-primary);
}
.home-subcat-deep { margin-left: 0.75rem; }

.home-subcat-name {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 0.2rem;
  transition: color 150ms;
}
.home-subcat-name:hover { color: var(--accent); text-decoration: none; }

.home-subarticle-link {
  display: block;
  font-size: 0.82rem;
  color: var(--text-tertiary);
  text-decoration: none;
  padding: 0.1rem 0;
  transition: color 150ms;
}
.home-subarticle-link:hover { color: var(--accent); text-decoration: none; }

.home-other { }

.home-other-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-primary);
}

/* ── Article list ── */
.page-list {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.list-main { flex: 1; min-width: 0; }

.list-header { margin-bottom: 1.5rem; }

/* ── Category sidebar ── */
.cat-sidebar {
  flex-shrink: 0;
  width: 180px;
  position: sticky;
  top: 5rem;
}

.cat-sidebar-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-primary);
}

.cat-group { margin-bottom: 0.25rem; }

.cat-link {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.2rem 0;
  transition: color 150ms;
}
.cat-link:hover { color: var(--accent); text-decoration: none; }
.cat-active { color: var(--accent); font-weight: 500; }
.cat-child { padding-left: 0.85rem; font-size: 0.82rem; }
.cat-grandchild { padding-left: 1.6rem; font-size: 0.8rem; }

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.article-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-item {
  border-bottom: 1px solid var(--border-primary);
}
.article-item:last-child { border-bottom: none; }

.article-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0.65rem 0;
  color: var(--text-primary);
  text-decoration: none;
  gap: 1rem;
  transition: color 150ms;
}
.article-link:hover {
  color: var(--accent);
  text-decoration: none;
}
.article-link:hover .article-title { color: var(--accent); }

.article-list .article-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0;
  line-height: 1.35;
}
.article-list .article-meta {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  font-family: 'IBM Plex Mono', monospace;
}

.empty-state {
  color: var(--text-secondary);
  padding: 2rem 0;
}

/* ── Article page ── */
.page-article {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

/* ── TOC sidebar ── */
.sidebar {
  flex-shrink: 0;
  width: 200px;
  position: sticky;
  top: 5rem;
}

.toc {
  padding: 0;
}

.toc-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-primary);
}

.toc ul { list-style: none; }
.toc li { margin: 0.25rem 0; }
.toc li a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  padding: 0.1rem 0;
  transition: color 150ms;
}
.toc li a:hover { color: var(--accent); text-decoration: none; }
.toc-h3 { padding-left: 0.85rem; }
.toc-h3 a { font-size: 0.8rem; }

.related {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-primary);
}
.related-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.6rem;
}
.related-list { list-style: none; padding: 0; margin: 0; }
.related-list li { margin: 0.3rem 0; line-height: 1.4; }
.related-list a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  padding: 0.1rem 0;
  transition: color 150ms;
}
.related-list a:hover { color: var(--accent); }

/* ── Breadcrumb ── */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: var(--text-tertiary); }

/* ── Article body ── */
.article-body { flex: 1; min-width: 0; }
.article-full { max-width: 740px; }

.article-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-primary);
}

.article-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.article-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  padding-top: 0.3rem;
}

.article-date { font-size: 0.8rem; color: var(--text-tertiary); }

.btn-edit {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 150ms, color 150ms;
}
.btn-edit:hover {
  background: var(--surface-tertiary);
  color: var(--text-primary);
  text-decoration: none;
}

/* ── Markdown content ── */
.article-content { color: var(--text-primary); }

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 1.75em 0 0.5em;
  line-height: 1.25;
  color: var(--text-primary);
  scroll-margin-top: 4.5rem;
}
.article-content h1 { font-size: 1.6rem; border-bottom: 1px solid var(--border-primary); padding-bottom: 0.4rem; }
.article-content h2 { font-size: 1.25rem; border-bottom: 1px solid var(--border-primary); padding-bottom: 0.3rem; }
.article-content h3 { font-size: 1.05rem; }
.article-content h4 { font-size: 0.95rem; }

.article-content p { margin: 0.85em 0; }

.article-content ul,
.article-content ol { padding-left: 1.5rem; margin: 0.85em 0; }
.article-content li { margin: 0.3em 0; }

.article-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--surface-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  color: var(--text-primary);
}

.article-content pre {
  background: var(--surface-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1em 0;
}
.article-content pre code,
.article-content pre code.hljs {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

.article-content blockquote {
  border-left: 3px solid var(--border-secondary);
  padding-left: 1rem;
  margin: 1em 0;
  color: var(--text-secondary);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 0.9rem;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border-primary);
  padding: 0.5rem 0.75rem;
  text-align: left;
}
.article-content th {
  background: var(--surface-secondary);
  font-weight: 600;
}
.article-content tr:nth-child(even) td { background: var(--surface-secondary); }

.article-content hr {
  border: none;
  border-top: 1px solid var(--border-primary);
  margin: 2em 0;
}

.article-content mark {
  background: rgba(255, 200, 0, 0.25);
  color: var(--text-primary);
  border-radius: 2px;
  padding: 0 2px;
}

/* ── Backlinks ── */
.backlinks {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-primary);
}

.backlinks-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.6rem;
}

.backlinks-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.backlinks-list a {
  font-size: 0.85rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border-primary);
  border-radius: 2rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 150ms, color 150ms;
}
.backlinks-list a:hover {
  background: var(--accent-muted);
  color: var(--accent);
  text-decoration: none;
}

/* ── Edit form ── */
.page-edit { max-width: 760px; }

.edit-form { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 1.25rem; }

.field { display: flex; flex-direction: column; gap: 0.4rem; }

.field-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.field-hint { font-size: 0.78rem; font-weight: 400; color: var(--text-tertiary); }

.field-input,
.field-textarea {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--surface-primary);
  color: var(--text-primary);
  transition: border-color 150ms, box-shadow 150ms;
  outline: none;
  width: 100%;
}
.field-input:focus,
.field-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.field-textarea {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  resize: vertical;
  line-height: 1.6;
  min-height: 22rem;
}

.edit-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

.btn-save {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background 150ms;
}
.btn-save:hover { background: var(--accent-hover); }

.btn-cancel {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background 150ms, color 150ms;
}
.btn-cancel:hover { background: var(--surface-tertiary); color: var(--text-primary); text-decoration: none; }

.btn-delete {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--danger);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-left: auto;
  transition: background 150ms;
}
.btn-delete:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); }

/* ── Search page ── */
.search-page {}

.search-bar-wrap {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-primary);
}

.search-bar-form {
  display: flex;
  gap: 0.5rem;
}

.search-bar-input {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.55rem 1rem;
  border: none;
  border-bottom: 2px solid var(--border-secondary);
  background: transparent;
  color: var(--text-primary);
  flex: 1;
  outline: none;
  transition: border-color 150ms;
}
.search-bar-input:focus { border-bottom-color: var(--accent); }
.search-bar-input::placeholder { color: var(--text-tertiary); }

.search-bar-btn {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background 150ms;
}
.search-bar-btn:hover { background: var(--accent-hover); }

.search-layout {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}

.search-filters {
  flex-shrink: 0;
  width: 160px;
  position: sticky;
  top: 5rem;
}

.search-filter-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-primary);
}

.search-cat-link {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.2rem 0;
  transition: color 150ms;
}
.search-cat-link:hover { color: var(--accent); text-decoration: none; }
.search-cat-active { color: var(--accent); font-weight: 500; }
.search-cat-root { margin-top: 0.15rem; }
.search-cat-child { padding-left: 0.75rem; font-size: 0.82rem; }
.search-cat-grandchild { padding-left: 1.4rem; font-size: 0.8rem; }

.search-results { flex: 1; min-width: 0; }

.search-meta {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
}
.search-meta strong { color: var(--text-primary); }
.search-meta a { color: var(--text-secondary); }

.search-result {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-primary);
}
.search-result:first-of-type { border-top: 1px solid var(--border-primary); }

.search-result-meta {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin-bottom: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.search-result-cat {
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 0.78rem;
}
.search-result-cat:hover { color: var(--accent); text-decoration: none; }
.search-result-sep { color: var(--border-secondary); }

.search-result-title {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  margin-bottom: 0.35rem;
  transition: color 150ms;
}
.search-result-title:hover { color: var(--accent); text-decoration: none; }

.search-result-snippet {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}
.search-result-snippet mark {
  background: rgba(255, 200, 0, 0.25);
  color: var(--text-primary);
  border-radius: 2px;
  padding: 0 2px;
}

.search-prompt {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  padding-top: 0.5rem;
}

/* ── Responsive ── */
@media (max-width: 700px) {
  .page-article, .page-list { flex-direction: column; }
  .sidebar, .cat-sidebar { width: 100%; position: static; }
  .article-header { flex-direction: column; }
  .nav-inner { padding: 0 1rem; }
  .search-input { width: 120px; }
  .home-cats { grid-template-columns: 1fr; }
  .home-header { gap: 0.5rem; }
  .home-actions { margin-left: 0; width: 100%; }
  .home-cat-form { flex-wrap: wrap; }
}

/* ── AE visualizer ── */
.page-ae-dashboard { padding: 2.5rem 2rem; max-width: 1200px; margin: 0 auto; }
.ae-header h1 { margin: 0 0 0.5rem; font-family: 'Space Grotesk', sans-serif; font-size: 2rem; }
.ae-source { color: var(--text-tertiary); font-size: 0.85rem; margin: 0 0 2rem; }
.ae-empty { padding: 3rem; border: 1px dashed var(--border); border-radius: 8px; text-align: center; color: var(--text-secondary); line-height: 1.8; }
.ae-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.ae-table th, .ae-table td { padding: 0.85rem 0.85rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.ae-table th { font-weight: 500; color: var(--text-secondary); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; padding-bottom: 0.65rem; }
.ae-table tbody tr:hover { background: rgba(0,0,0,0.025); }
.ae-table tbody td a { color: var(--text-primary); text-decoration: none; font-weight: 500; }
.ae-table tbody td a:hover { color: #2563eb; }
.ae-kind-hdr { writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; }
.ae-presence { text-align: center; }
.ae-tick.yes { color: #16a34a; font-weight: 600; }
.ae-tick.no  { color: var(--text-tertiary); opacity: 0.4; }
.ae-id-badge { display: inline-block; padding: 1px 6px; background: var(--bg-secondary, #eee); border-radius: 3px; font-family: 'IBM Plex Mono', monospace; font-size: 0.75rem; color: var(--text-secondary); }
.ae-progress { position: relative; height: 14px; background: var(--bg-secondary, #eee); border-radius: 3px; overflow: hidden; min-width: 80px; }
.ae-progress-bar { position: absolute; inset: 0 auto 0 0; background: #16a34a; opacity: 0.6; }
.ae-progress-label { position: relative; display: block; text-align: center; font-size: 0.7rem; line-height: 14px; font-family: 'IBM Plex Mono', monospace; }
.ae-na { color: var(--text-tertiary); }

.page-ae-artifact { display: flex; min-height: calc(100vh - 60px); }

.ae-sidebar {
  width: 280px;
  padding: 1.25rem 1rem;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  overflow-y: auto;
  position: sticky;
  top: 60px;
  height: calc(100vh - 60px);
}
.ae-sidebar-head { margin-bottom: 1rem; }
.ae-sidebar-head h2 {
  font-size: 1.05rem;
  line-height: 1.3;
  margin: 0.5rem 0 0.75rem;
  font-family: 'Space Grotesk', sans-serif;
}
.ae-back { font-size: 0.8rem; color: var(--text-secondary); text-decoration: none; }
.ae-back:hover { color: var(--text-primary); }
.ae-artifact-list ul { list-style: none; padding: 0; margin: 0.5rem 0 0; }
.ae-art { margin: 2px 0; }
.ae-art a {
  display: flex;
  gap: 0.6rem;
  padding: 7px 10px;
  border-radius: 5px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.875rem;
  line-height: 1.4;
}
.ae-art a:hover { background: rgba(0,0,0,0.04); }
.ae-art.active a { background: rgba(22,163,74,0.12); font-weight: 500; }
.ae-art-kind {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 5rem;
  padding-top: 1px;
}
.ae-art-name {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ae-main {
  flex: 1;
  padding: 2.5rem 3rem 4rem;
  max-width: 980px;
  min-width: 0;
}
.ae-art-header { margin-bottom: 2rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--border); }
.ae-art-header h1 {
  margin: 0 0 0.75rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  line-height: 1.2;
}
.ae-art-meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}
.ae-art-meta code { background: var(--surface-secondary, #f6f8fa); padding: 2px 8px; border-radius: 4px; font-size: 0.8rem; }
.ae-art-kind-badge { background: var(--surface-secondary, #eef1f5); padding: 2px 8px; border-radius: 4px; font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; }
.ae-readonly { color: #c2410c; font-size: 0.7rem; padding: 2px 8px; border: 1px solid #c2410c; border-radius: 4px; letter-spacing: 0.04em; text-transform: uppercase; }

.ae-toc {
  float: right;
  margin: 0 0 1.5rem 1.75rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 280px;
  font-size: 0.85rem;
  background: var(--surface-secondary, #f9fafb);
}
.ae-toc .toc-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); margin: 0 0 0.5rem; }
.ae-toc ul { list-style: none; padding: 0; margin: 0; }
.ae-toc li { margin: 0.3rem 0; line-height: 1.4; }
.ae-toc .toc-h3 { padding-left: 0.85rem; font-size: 0.8rem; }
.ae-toc a { color: var(--text-secondary); text-decoration: none; }
.ae-toc a:hover { color: var(--text-primary); }

/* ── Long-form prose inside artifacts ── */
.ae-content {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-primary);
}
.ae-content > * { max-width: 72ch; }
.ae-content > pre,
.ae-content > table,
.ae-content > .chroma { max-width: none; }

.ae-content h1 { font-size: 1.75rem; margin: 2.5rem 0 1rem; line-height: 1.25; font-family: 'Space Grotesk', sans-serif; }
.ae-content h2 { font-size: 1.45rem; margin: 2.75rem 0 1rem; line-height: 1.3; padding-bottom: 0.4rem; border-bottom: 1px solid var(--border); font-family: 'Space Grotesk', sans-serif; }
.ae-content h3 { font-size: 1.18rem; margin: 2rem 0 0.75rem; line-height: 1.35; font-family: 'Space Grotesk', sans-serif; }
.ae-content h4 { font-size: 1.02rem; margin: 1.5rem 0 0.5rem; font-weight: 600; }
.ae-content > h1:first-child,
.ae-content > h2:first-child { margin-top: 0; }

.ae-content p { margin: 0 0 1.25rem; }
.ae-content ul, .ae-content ol { margin: 0 0 1.25rem; padding-left: 1.5rem; }
.ae-content li { margin: 0.4rem 0; line-height: 1.7; }
.ae-content li > ul, .ae-content li > ol { margin: 0.35rem 0; }

.ae-content blockquote {
  margin: 1.25rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--border);
  color: var(--text-secondary);
  background: var(--surface-secondary, #f9fafb);
  border-radius: 0 4px 4px 0;
}

.ae-content code:not(pre code) {
  background: var(--surface-secondary, #f6f8fa);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.88em;
  font-family: 'IBM Plex Mono', monospace;
}
.ae-content pre {
  background: var(--surface-secondary, #f6f8fa);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0 1.75rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}
.ae-content pre code { background: none; padding: 0; font-size: inherit; }

.ae-content table {
  width: auto;
  margin: 1.25rem 0 1.75rem;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.ae-content th, .ae-content td { padding: 0.55rem 0.85rem; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.ae-content th { background: var(--surface-secondary, #f6f8fa); font-weight: 600; }
.ae-content tr:nth-child(2n) td { background: rgba(0,0,0,0.015); }

.ae-content hr { margin: 2.5rem 0; border: none; border-top: 1px solid var(--border); }

.ae-content a { color: #2563eb; text-decoration: none; border-bottom: 1px solid rgba(37,99,235,0.25); }
.ae-content a:hover { border-bottom-color: #2563eb; }

/* chroma: ensure contract code block matches prose pre */
.ae-content .chroma {
  background: var(--surface-secondary, #f6f8fa) !important;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0 1.75rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

a.dead-link { color: #c2410c; text-decoration: line-through; opacity: 0.75; cursor: not-allowed; }

.search-result-src.ae { display: inline-block; background: #16a34a; color: #fff; font-size: 0.65rem; font-weight: 600; letter-spacing: 0.05em; padding: 1px 6px; border-radius: 3px; margin-right: 0.5rem; }

@media (max-width: 960px) {
  .page-ae-artifact { flex-direction: column; }
  .ae-sidebar { position: static; height: auto; width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  .ae-main { padding: 1.5rem 1.25rem 3rem; max-width: none; }
  .ae-toc { float: none; margin: 0 0 1.5rem; max-width: none; }
  .ae-content > * { max-width: none; }
}