:root {
  color-scheme: light;
  --bg: #f8f7f2;
  --surface: #fffefa;
  --surface-muted: #efeee7;
  --text: #202623;
  --muted: #63716d;
  --faint: #8a9690;
  --border: #d9ded6;
  --accent: #2e6f68;
  --accent-strong: #184f4b;
  --code-bg: #ecefe9;
  --shadow: 0 18px 48px rgba(36, 44, 39, 0.08);
  --content: 760px;
  --wide: 1120px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  line-height: 1.68;
}

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

a:hover {
  color: var(--accent-strong);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(46, 111, 104, 0.28);
  outline-offset: 3px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--wide);
  margin: 0 auto;
  padding: 28px 28px 18px;
  border-bottom: 1px solid var(--border);
}

.site-title {
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px 18px;
}

.site-nav__link {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.site-nav__link.is-active {
  color: var(--text);
  font-weight: 650;
}

main {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 28px 72px;
}

.home-hero,
.listing-shell,
.article-shell {
  max-width: var(--content);
  margin: 0 auto;
}

.home-hero {
  padding: 74px 0 38px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  line-height: 1.14;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
}

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 1.8rem;
}

h3 {
  font-size: 1.25rem;
}

.lede {
  margin: 18px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 1.15rem;
}

.search-box {
  position: relative;
  margin-top: 34px;
}

.search-box label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.search-box input {
  width: 100%;
  min-height: 48px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.search-results {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.search-results:empty {
  display: none;
}

.search-result {
  display: block;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-decoration: none;
}

.search-result strong {
  display: block;
  color: var(--text);
}

.search-result span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.9rem;
}

.section-block {
  max-width: var(--wide);
  margin: 54px auto 0;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.section-heading {
  max-width: var(--content);
  margin: 0 auto 22px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.post-list {
  display: grid;
  gap: 14px;
  max-width: var(--content);
  margin: 0 auto;
}

.post-card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 254, 250, 0.72);
}

.post-card--featured {
  background: var(--surface);
  box-shadow: var(--shadow);
}

.post-card__meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--faint);
  font-size: 0.86rem;
}

.post-card h3 {
  margin-top: 12px;
}

.post-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.post-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag-row a {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
  text-decoration: none;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  max-width: var(--content);
  margin: 0 auto;
}

.category-link {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.category-link small {
  color: var(--muted);
}

.listing-shell {
  padding: 68px 0;
}

.listing-shell .post-list {
  margin-top: 32px;
}

.article-shell {
  padding: 58px 0 72px;
}

.back-link {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.article-header h1 {
  margin-top: 18px;
}

.article-header > p {
  margin: 18px 0 18px;
  color: var(--muted);
  font-size: 1.14rem;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 210px;
  gap: 48px;
  margin-top: 44px;
}

.article-content {
  min-width: 0;
}

.article-content h2,
.article-content h3 {
  margin-top: 2.1em;
  margin-bottom: 0.7em;
}

.article-content p,
.article-content ul,
.article-content ol,
.article-content blockquote,
.article-content pre,
.article-content table {
  margin: 1.05em 0;
}

.article-content p,
.article-content li {
  color: #2b342f;
}

.article-content ul,
.article-content ol {
  padding-left: 1.35rem;
}

.article-content blockquote {
  padding-left: 18px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.article-content pre {
  overflow-x: auto;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--code-bg);
}

.article-content code {
  padding: 0.12em 0.32em;
  border-radius: 5px;
  background: var(--code-bg);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.article-content pre code {
  padding: 0;
  background: transparent;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.article-content th,
.article-content td {
  padding: 10px 12px;
  border: 1px solid var(--border);
  text-align: left;
}

.toc {
  position: sticky;
  top: 24px;
  align-self: start;
  padding-left: 18px;
  border-left: 1px solid var(--border);
}

.toc p {
  margin: 0 0 10px;
  color: var(--text);
  font-weight: 700;
}

.toc__link {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.toc__link--3 {
  padding-left: 12px;
}

.article-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 46px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.article-pagination a {
  display: block;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.article-pagination span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.archive-year {
  margin-top: 34px;
}

.archive-item {
  display: grid;
  grid-template-columns: 120px 1fr 120px;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.archive-item time,
.archive-item span {
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  max-width: var(--wide);
  margin: 0 auto;
  padding: 28px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 2.35rem;
  }

  .post-grid,
  .category-grid,
  .article-layout,
  .article-pagination {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
    order: -1;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
  }

  .archive-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 560px) {
  .site-header,
  main,
  .site-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .home-hero {
    padding-top: 48px;
  }

  .post-card,
  .category-link {
    padding: 18px;
  }
}