:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1b1f24;
  --muted: #5b6470;
  --line: #dde1e6;
  --accent: #0a7c86;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --card: #191d22;
    --text: #e6e9ed;
    --muted: #9aa4af;
    --line: #2a3038;
    --accent: #3fc6d0;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
header img { width: 48px; height: 48px; }
h1 { font-size: 2rem; margin: 0; letter-spacing: .01em; }
h2 { font-size: 1.2rem; margin: 2.2em 0 .6em; }
h3 { font-size: 1rem; margin: 1.4em 0 .3em; }
p, li { color: var(--text); }
.lead { color: var(--muted); font-size: 1.1rem; margin-top: 0; }
.muted { color: var(--muted); font-size: .9rem; }
a { color: var(--accent); }
.button {
  display: inline-block; padding: 10px 18px; border-radius: 8px;
  background: var(--accent); color: var(--bg); text-decoration: none; font-weight: 600;
}
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; padding: 0; list-style: none; }
.grid li { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.grid b { display: block; }
.grid span { color: var(--muted); font-size: .92rem; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.table { overflow-x: auto; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
footer a { margin-right: 16px; }