:root {
  --bg: #0f1115;
  --panel: #171a21;
  --ink: #e8eaed;
  --muted: #9aa3af;
  --accent: #6ee7b7;
  --line: #262b35;
  --maxw: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

header.site {
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0;
  background: rgba(15,17,21,0.86);
  backdrop-filter: saturate(150%) blur(8px);
}
header.site .wrap {
  display: flex; align-items: center; gap: 18px;
  height: 60px;
}
.brand { font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.brand .dot { color: var(--accent); }
nav { margin-left: auto; display: flex; gap: 18px; font-size: 15px; }
nav a { color: var(--muted); }
nav a:hover { color: var(--ink); text-decoration: none; }

.hero { padding: 72px 0 40px; }
.hero h1 { font-size: 40px; line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 14px; }
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0; max-width: 560px; }

main { padding: 8px 0 64px; }
section.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 26px;
  margin: 22px 0;
}
h2 { font-size: 22px; letter-spacing: -0.01em; margin: 0 0 12px; }
h3 { font-size: 16px; margin: 22px 0 6px; }
p, li { color: #cdd2da; }
.muted { color: var(--muted); }
small.updated { color: var(--muted); display: block; margin-top: 6px; }

ul { padding-left: 20px; }
li { margin: 6px 0; }

.features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.features .f { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.features .f h3 { margin: 0 0 4px; color: var(--ink); }
.features .f p { margin: 0; font-size: 14px; color: var(--muted); }

footer.site {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  color: var(--muted);
  font-size: 14px;
}
footer.site .wrap { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
footer.site a { color: var(--muted); }
footer.site .spacer { margin-left: auto; }

@media (max-width: 560px) {
  .hero h1 { font-size: 31px; }
  .features { grid-template-columns: 1fr; }
  nav { gap: 13px; }
}