:root {
  --bg: #0f1115;
  --panel: #171a21;
  --text: #e6e8ec;
  --muted: #9aa3b2;
  --accent: #4ea1ff;
  --good: #2bb673;
  --warn: #e3a008;
  --poor: #e5484d;
  --border: #232833;
  --maxw: 760px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
header.site {
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(15,17,21,.9); backdrop-filter: blur(8px);
}
header.site .container { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-weight: 700; letter-spacing: -.02em; font-size: 18px; color: var(--text); }
.brand span { color: var(--accent); }
nav a { margin-left: 18px; color: var(--muted); font-size: 14px; }
.hero { padding: 56px 0 24px; }
.hero h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -.02em; }
.hero p { color: var(--muted); font-size: 18px; margin: 0; }
.cards { display: grid; gap: 16px; padding: 24px 0 64px; }
.card {
  display: block; padding: 20px 22px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 14px; color: var(--text);
}
.card:hover { border-color: #2f3947; text-decoration: none; }
.card h3 { margin: 0 0 6px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .tag { display: inline-block; margin-top: 12px; font-size: 12px; color: var(--accent); }
article { padding: 40px 0 72px; }
article h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -.02em; }
article .meta { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
article h2 { font-size: 23px; margin: 36px 0 12px; letter-spacing: -.01em; }
article h3 { font-size: 18px; margin: 24px 0 8px; }
article p, article li { color: #d4d8df; }
article ul { padding-left: 22px; }
code {
  background: #11141a; border: 1px solid var(--border); border-radius: 6px;
  padding: 1px 6px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px;
}
table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }
.badge { display: inline-block; padding: 1px 9px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.badge.good { background: rgba(43,182,115,.15); color: var(--good); }
.badge.warn { background: rgba(227,160,8,.15); color: var(--warn); }
.badge.poor { background: rgba(229,72,77,.15); color: var(--poor); }
footer.site { border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
footer.site .container { padding: 28px 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
@media (max-width: 560px) {
  .hero h1 { font-size: 27px; }
  nav a { margin-left: 12px; }
}