:root {
  --bg: #0b1020;
  --panel: #131a30;
  --text: #eef1f8;
  --muted: #9aa3b8;
  --glow: #f5d547;
  --glow-soft: rgba(245, 213, 71, 0.18);
  --line: #242d48;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, #1b2550 0%, var(--bg) 60%) fixed, var(--bg);
  color: var(--text);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 2.4rem; line-height: 1.1; margin: 0 0 12px; letter-spacing: -0.02em; }
h2 { font-size: 1.2rem; margin: 40px 0 8px; }
p, li { color: var(--muted); }
strong { color: var(--text); }
a { color: var(--glow); }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 40px; font-weight: 700; color: var(--text); text-decoration: none; }
.dot {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--glow);
  box-shadow: 0 0 12px 4px var(--glow-soft), 0 0 28px 10px var(--glow-soft);
  animation: pulse 3.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.55; box-shadow: 0 0 6px 2px var(--glow-soft); } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }
.lead { font-size: 1.15rem; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin: 16px 0; }
.card h2 { margin-top: 0; }
.button {
  display: inline-block; padding: 12px 20px; border-radius: 999px; border: 0;
  background: var(--glow); color: #1a1600; font-weight: 700; text-decoration: none; font-size: 1rem; cursor: pointer;
}
.button.secondary { background: transparent; color: var(--text); border: 1px solid var(--line); }
ul.plain { padding-left: 20px; }
code, input { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
input {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font-size: 0.95rem; margin: 8px 0 12px;
}
table { width: 100%; border-collapse: collapse; }
td { padding: 8px 0; border-bottom: 1px solid var(--line); }
td:last-child { text-align: right; color: var(--text); font-variant-numeric: tabular-nums; }
footer { margin-top: 56px; font-size: 0.85rem; color: var(--muted); }