:root{
  --bg:#fbfbf8;
  --fg:#1a1a1a;
  --muted:#5a5a5a;
  --line:#e6e3dd;
  --card:#ffffff;
  --accent:#0f3d2e;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--fg);
  line-height:1.6;
}
.container{max-width:980px;margin:0 auto;padding:0 18px}
.site-header{position:sticky;top:0;background:rgba(251,251,248,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:18px}
.brand{font-weight:700;letter-spacing:.02em;text-decoration:none;color:var(--fg)}
.nav{display:flex;flex-wrap:wrap;gap:14px}
.nav a{color:var(--muted);text-decoration:none}
.nav a:hover{color:var(--fg)}
main{padding:22px 0 42px}
.site-footer{border-top:1px solid var(--line);padding:18px 0;color:var(--muted)}
.prose h1{margin:0 0 10px;line-height:1.2}
.prose img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
.meta{color:var(--muted);font-family:var(--mono);font-size:12px;margin:0 0 18px}
.list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-decoration:none;color:var(--fg)}
.card-title{font-weight:650;margin-bottom:6px}
.card-summary{color:var(--muted);font-size:14px}
.card-meta{color:var(--muted);font-family:var(--mono);font-size:12px;margin-top:10px}
@media (max-width: 820px){.list{grid-template-columns:1fr}.nav{gap:10px}}