:root {
  --bg: #ffffff;
  --text: #16181d;
  --muted: #5b616e;
  --line: #e4e6eb;
  --card: #f5f6f8;
  --accent: #ff6a3d;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --text: #eceef2;
    --muted: #a0a6b2;
    --line: #262a33;
    --card: #171a20;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
nav a { color: var(--muted); text-decoration: none; margin-left: 12px; font-size: 14px; }
nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 14px; }
.summary { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; margin: 20px 0; }
.summary li { margin: 4px 0; }
table { width: 100%; border-collapse: collapse; margin: 8px 0; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; width: 32%; }
a { color: var(--accent); }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); }
@media (max-width: 520px) {
  h1 { font-size: 26px; }
  th { width: 38%; }
}