:root {
  --bg: #ffffff;
  --text: #202124;
  --muted: #5f6368;
  --line: #e8eaed;
  --brand: #1a73e8;
  --soft: #f1f3f4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --text: #e8eaed;
    --muted: #9aa0a6;
    --line: #2d2f33;
    --brand: #8ab4f8;
    --soft: #222326;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 44px; height: 44px; border-radius: 10px; }
header a { color: inherit; text-decoration: none; font-weight: 600; font-size: 20px; }
h1 { font-size: 30px; line-height: 1.2; margin: 24px 0 4px; }
h2 { font-size: 20px; margin: 36px 0 8px; padding-top: 12px; border-top: 1px solid var(--line); }
h3 { font-size: 16px; margin: 20px 0 4px; }
p, li { color: var(--text); }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
a { color: var(--brand); }
ul { padding-left: 22px; }
li { margin: 4px 0; }
.box { background: var(--soft); border-radius: 12px; padding: 16px 18px; margin: 16px 0; }
.box p:first-child { margin-top: 0; }
.box p:last-child { margin-bottom: 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
.button {
  display: inline-block; background: var(--brand); color: #fff; text-decoration: none;
  padding: 10px 18px; border-radius: 999px; font-weight: 600;
}
@media (prefers-color-scheme: dark) { .button { color: #17181a; } }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer a { margin-right: 14px; }
@media (max-width: 560px) {
  h1 { font-size: 26px; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  td { border: 0; padding: 2px 0; }
  tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
  td:first-child { font-weight: 600; }
}