:root {
  --bg: #FAFAFC;
  --surface: #FFFFFF;
  --text: #1F2C3E;
  --accent: #2C4A6E;
  --muted: #5F6B7A;
  --line: #D8DCE3;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 "Inter", "IBM Plex Sans", system-ui, sans-serif;
  margin: 0;
}
.container { max-width: 880px; margin: 0 auto; padding: 0 1.5rem; }
header.site { background: var(--surface); border-bottom: 1px solid var(--line); padding: 1.5rem 0; }
header.site .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.brand { color: var(--accent); text-decoration: none; font-weight: 700; font-size: 1.05rem; letter-spacing: 0.02em; }
.brand small { display: block; font-size: 0.7rem; color: var(--muted); font-weight: 400; letter-spacing: 0.05em; text-transform: uppercase; margin-top: 0.15rem; }
nav.site a { color: var(--text); text-decoration: none; margin-left: 1.5rem; font-size: 0.95rem; }
nav.site a:hover { color: var(--accent); }
main { padding: 3rem 0 4rem; }
.section-label { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 0 0 0.5rem; font-weight: 600; }
article header { margin: 0 0 2rem; }
article h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 0.75rem; font-weight: 700; color: var(--text); }
article .meta { color: var(--muted); font-size: 0.9rem; margin: 0; }
article h2 { font-size: 1.25rem; margin: 2.5rem 0 0.75rem; font-weight: 700; color: var(--accent); }
article p { margin: 1rem 0; }
article a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
article a:hover { text-decoration: none; }
article ul, article ol { margin: 1rem 0; padding-left: 1.5rem; }
article li { margin: 0.4rem 0; }
article blockquote { border-left: 3px solid var(--accent); margin: 1.5rem 0; padding: 0.25rem 1rem; color: var(--muted); }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li { background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 1.25rem 1.5rem; margin: 0 0 1rem; }
.post-list h2 { font-size: 1.15rem; margin: 0 0 0.5rem; font-weight: 700; }
.post-list h2 a { color: var(--text); text-decoration: none; }
.post-list h2 a:hover { color: var(--accent); }
.post-list .meta { color: var(--muted); font-size: 0.85rem; margin: 0 0 0.5rem; letter-spacing: 0.02em; }
.post-list .excerpt { margin: 0; font-size: 0.95rem; }
footer.site { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); font-size: 0.85rem; background: var(--surface); }
footer.site .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
footer.site a { color: var(--accent); }
@media (max-width: 600px) {
  body { font-size: 16px; }
  article h1 { font-size: 1.55rem; }
  nav.site a { margin-left: 1rem; }
  header.site .container { gap: 0.75rem; }
}