:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --text: #202124;
  --muted: #666b73;
  --line: #d8dee8;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --surface: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.site-shell {
  width: min(100% - 32px, 880px);
  margin: 0 auto;
  padding: 56px 0 72px;
}

.site-header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 32px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: 4.1rem;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.45rem;
}

h3 {
  margin-top: 32px;
  font-size: 1.2rem;
}

.lede,
.summary {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
}

.nav-links,
.article-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
}

.identity-block {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
  gap: 36px;
  border-bottom: 1px solid var(--line);
  padding: 28px 0 30px;
}

.identity-block h2 {
  margin-bottom: 8px;
}

.identity-block p {
  margin: 0;
  max-width: 640px;
  color: var(--muted);
}

.identity-role {
  color: var(--text);
  font-weight: 700;
}

.section-label {
  margin-bottom: 10px !important;
  color: var(--accent-dark) !important;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topic-list {
  display: grid;
  gap: 6px;
  margin: 0 0 18px;
  padding-left: 1.1rem;
  color: #2d3034;
}

.identity-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.article-list {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.article-card {
  border-bottom: 1px solid var(--line);
  padding: 24px 0 28px;
}

.article-card p {
  max-width: 720px;
  margin: 0 0 16px;
  color: var(--muted);
}

.article-meta {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.56);
  padding: 3px 8px;
  color: #3f454b;
  font-size: 0.82rem;
}

.article-shell {
  width: min(100% - 32px, 760px);
}

.article-nav {
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.article-nav {
  justify-content: flex-start;
}

.article-page header {
  padding: 38px 0 18px;
}

.about-shell {
  width: min(100% - 32px, 760px);
}

.about-page {
  padding-top: 34px;
}

.about-section {
  border-bottom: 1px solid var(--line);
  padding: 0 0 28px;
  margin-bottom: 28px;
}

.about-section p {
  max-width: 680px;
  color: #2d3034;
}

.about-topics {
  max-width: 560px;
}

.prose {
  font-size: 1.05rem;
}

.prose h1 {
  display: none;
}

.prose h2 {
  margin-top: 42px;
}

.prose p,
.prose li {
  color: #2d3034;
}

.prose ul {
  padding-left: 1.3rem;
}

.prose code {
  border-radius: 4px;
  background: #edf2f7;
  padding: 0.1rem 0.28rem;
}

.prose pre {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #1f2933;
  padding: 16px;
}

.prose pre code {
  background: transparent;
  color: #f8fafc;
  padding: 0;
}

@media (max-width: 520px) {
  .site-shell {
    width: min(100% - 24px, 880px);
    padding: 34px 0 54px;
  }

  h1 {
    font-size: 2.25rem;
  }

  .lede,
  .summary,
  .prose {
    font-size: 1rem;
  }

  .identity-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}