:root {
  --bg: #0f1115;
  --surface: #161922;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --accent: #7dd3fc;
  --border: #232735;
  --max: 780px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease;
}
a:hover { border-bottom-color: var(--accent); }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  padding: 96px 0 48px;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  margin: 0 0 12px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.125rem;
  max-width: 60ch;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.9rem;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

main section {
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}
main section:last-of-type { border-bottom: none; }

h2 {
  margin: 0 0 24px;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 600;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.timeline li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  align-items: start;
}

.timeline .when {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--muted);
  padding-top: 2px;
}

.timeline .org { color: var(--muted); font-weight: 500; }
.timeline p { margin: 4px 0 0; color: var(--muted); }

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
}
.card h3 { margin-bottom: 6px; }
.card p { margin: 0 0 6px; color: var(--muted); font-size: 0.95rem; }
.card .meta {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 10px;
}

.card-link {
  display: block;
  color: inherit;
  border-bottom: none;
  transition: border-color 120ms ease, background 120ms ease;
}
.card-link:hover {
  border-bottom: none;
  border-color: var(--accent);
  background: rgba(125, 211, 252, 0.04);
}
.card-link h3 { color: var(--text); }
.card-link:hover h3 { color: var(--accent); }

ul.inline {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

footer {
  padding: 32px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 600px) {
  .hero { padding: 64px 0 36px; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
}

/* Sub-page header — smaller than homepage hero */
.subhero {
  padding: 64px 0 32px;
  border-bottom: 1px solid var(--border);
}
.subhero h1 {
  margin: 0 0 8px;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.subhero p {
  margin: 0 0 20px;
  color: var(--muted);
  max-width: 62ch;
}
.subhero .back {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Post list (/thoughts) */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 28px;
}
.post-list li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  align-items: baseline;
}
.post-list .date {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--muted);
}
.post-list h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}
.post-list h3 a {
  color: var(--text);
  border-bottom: none;
}
.post-list h3 a:hover { color: var(--accent); }
.post-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Article body (individual posts, guidelines, ai-agents page) */
.article-body {
  padding: 40px 0 64px;
}
.article-body p,
.article-body li {
  color: var(--text);
}
.article-body p { margin: 0 0 1em; }
.article-body h2 {
  margin: 40px 0 16px;
  font-size: 1.2rem;
}
.article-body h3 {
  margin: 28px 0 10px;
  font-size: 1rem;
}
.article-body ul,
.article-body ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
}
.article-body li { margin-bottom: 6px; }
.article-body blockquote {
  margin: 1em 0;
  padding: 6px 16px;
  border-left: 3px solid var(--border);
  color: var(--muted);
}
.article-body code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--surface);
  padding: 1px 6px;
  border-radius: 4px;
}
.article-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
}
.article-body pre code {
  background: none;
  padding: 0;
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

.post-meta {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (max-width: 600px) {
  .post-list li { grid-template-columns: 1fr; gap: 4px; }
}

/* Embedded long-form docs (architecture reference, build guide) */
.doc-intro {
  margin: 0 0 8px;
}
.doc-downloads {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.9rem;
}
.doc-downloads a { color: var(--accent); }

.doc-embed {
  margin: 0 0 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}
.doc-embed > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 14px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--muted);
  user-select: none;
}
.doc-embed > summary::-webkit-details-marker { display: none; }
.doc-embed > summary:hover { background: rgba(255,255,255,0.02); color: var(--accent); }
.doc-embed > summary::before {
  content: "▸";
  display: inline-block;
  width: 10px;
  margin-right: 8px;
  transition: transform 120ms ease;
}
.doc-embed[open] > summary::before { transform: rotate(90deg); }
.doc-embed[open] > summary { border-bottom: 1px solid var(--border); }

.doc-rendered {
  padding: 20px 20px 8px;
  background: var(--bg);
}
.doc-rendered h1,
.doc-rendered h2,
.doc-rendered h3,
.doc-rendered h4 {
  font-weight: 600;
  letter-spacing: -0.01em;
}
.doc-rendered h1 {
  margin: 28px 0 12px;
  font-size: 1.2rem;
}
.doc-rendered h2 {
  margin: 24px 0 10px;
  font-size: 1.05rem;
}
.doc-rendered h3 {
  margin: 20px 0 8px;
  font-size: 0.98rem;
}
.doc-rendered h4 {
  margin: 16px 0 6px;
  font-size: 0.92rem;
  color: var(--muted);
}
.doc-rendered p { margin: 0 0 1em; }
.doc-rendered ul,
.doc-rendered ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
}
.doc-rendered li { margin-bottom: 4px; }
.doc-rendered blockquote {
  margin: 1em 0;
  padding: 6px 16px;
  border-left: 3px solid var(--border);
  color: var(--muted);
}
.doc-rendered code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85em;
  background: var(--surface);
  padding: 1px 6px;
  border-radius: 4px;
}
.doc-rendered pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}
.doc-rendered pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}
.doc-rendered hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}
.doc-rendered img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 16px auto;
  border-radius: 6px;
}
.doc-rendered table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1em;
  font-size: 0.9rem;
}
.doc-rendered th,
.doc-rendered td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.doc-rendered th {
  color: var(--muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

/* Detection-kit section — file blocks, copy buttons */
.kit-intro {
  margin: 0 0 8px;
}
.kit-downloads {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.9rem;
}
.kit-downloads a { color: var(--accent); }

.kit-group-heading {
  margin: 28px 0 12px;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.file-block {
  margin: 0 0 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}
.file-block > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  user-select: none;
}
.file-block > summary::-webkit-details-marker { display: none; }
.file-block > summary:hover { background: rgba(255,255,255,0.02); }
.file-block[open] > summary { border-bottom: 1px solid var(--border); }

.file-path {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--text);
  background: none;
  padding: 0;
}
.file-block > summary::before {
  content: "▸";
  display: inline-block;
  color: var(--muted);
  font-size: 0.75rem;
  width: 10px;
  margin-right: 4px;
  transition: transform 120ms ease;
}
.file-block[open] > summary::before {
  transform: rotate(90deg);
}
.file-path-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
  overflow: hidden;
}
.file-path-wrap .file-path {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 120ms, border-color 120ms, background 120ms;
}
.copy-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.copy-btn.copied {
  color: #8ee3a8;
  border-color: #8ee3a8;
}

.file-block > pre {
  margin: 0;
  padding: 14px 16px;
  background: var(--bg);
  border: none;
  border-radius: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  max-height: 520px;
  overflow: auto;
}
.file-block > pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}