:root {
  color-scheme: dark;
  --bg: #050e12;
  --panel: #0b1a20;
  --line: #1d3942;
  --text: #d9e7ea;
  --muted: #8aa6ad;
  --cyan: #16b8c8;
  --red: #e84057;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at 20% 0%, #0d2630 0%, var(--bg) 55%);
  color: var(--text);
  font: 16px/1.65 "Segoe UI", system-ui, -apple-system, sans-serif;
}
main { max-width: 860px; margin: 0 auto; padding: 48px 24px 80px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .inner { max-width: 860px; margin: 0 auto; padding: 18px 24px; display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--text); text-decoration: none; }
.brand span { color: var(--cyan); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; }
nav a:hover { color: var(--cyan); }
h1 { font-size: 2rem; line-height: 1.15; margin: 0 0 6px; }
h2 { font-size: 1.25rem; margin: 34px 0 10px; color: #fff; }
h3 { font-size: 1.05rem; margin: 22px 0 8px; }
p, li { color: var(--text); }
ul { padding-left: 22px; }
a { color: var(--cyan); }
.meta { color: var(--muted); font-size: .9rem; margin-bottom: 28px; }
.note { border-left: 3px solid var(--red); background: var(--panel); padding: 12px 16px; margin: 22px 0; color: var(--muted); }
table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; border: 1px solid var(--line); padding: 10px 12px; }
th { background: var(--panel); color: #fff; }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }
footer.site .inner { max-width: 860px; margin: 0 auto; padding: 20px 24px; }