:root {
  --bg: #fffdf8;
  --fg: #1f2a24;
  --muted: #5b6b63;
  --accent: #2f6f4f;
  --accent-dark: #1f4c36;
  --border: #e3e8e3;
  --code-bg: #f3f1ea;
  --max: 46rem;
}

* { box-sizing: border-box; }

html { font-size: 17px; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
}

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

/* Header */
.site-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.brand {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--accent-dark);
}
.site-nav {
  display: flex;
  gap: 1.1rem;
  margin-left: auto;
  flex-wrap: wrap;
}
.site-nav a { text-decoration: none; color: var(--muted); }
.site-nav a:hover { color: var(--fg); }
.site-nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }
.site-nav .external { color: var(--muted); }

/* Shared content width */
.breadcrumb, .content, .pager, .site-footer {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Breadcrumb */
.breadcrumb { padding-top: 1rem; font-size: 0.85rem; color: var(--muted); }
.breadcrumb ol { list-style: none; display: flex; gap: 0.4rem; padding: 0; margin: 0; flex-wrap: wrap; }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: 0.4rem; color: var(--border); }
.breadcrumb a { text-decoration: none; }

/* Content */
.content { padding-top: 1.5rem; padding-bottom: 2rem; }
.content h1 { font-size: 2.1rem; line-height: 1.15; letter-spacing: -0.02em; margin: 0.4rem 0 1rem; }
.content h2 { font-size: 1.4rem; margin-top: 2.4rem; }
.content h3 { font-size: 1.1rem; margin-top: 1.8rem; }
.content p, .content li { color: #2a352e; }
.content code {
  background: var(--code-bg);
  padding: 0.12em 0.35em;
  border-radius: 4px;
  font-size: 0.88em;
}
.content pre {
  background: var(--code-bg);
  padding: 1rem 1.1rem;
  border-radius: 8px;
  overflow-x: auto;
  border: 1px solid var(--border);
}
.content pre code { background: none; padding: 0; }
.content blockquote {
  margin: 1.5rem 0;
  padding: 0.2rem 1.1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

/* Pager */
.pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
  border-top: 1px solid var(--border);
}
.pager a { text-decoration: none; font-weight: 600; }

/* Footer */
.site-footer {
  padding-top: 2rem;
  padding-bottom: 3rem;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}