:root {
  --bg: #ffffff;
  --text: #1b1b1f;
  --muted: #5b5b66;
  --line: #e4e4ea;
  --accent: #0a5bd6;
  --card: #f6f7fa;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1013;
    --text: #ececf1;
    --muted: #a2a2ad;
    --line: #2a2b31;
    --accent: #6ea8ff;
    --card: #17181d;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; padding-bottom: 14px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
nav a { margin-left: 18px; text-decoration: none; color: var(--muted); font-size: 15px; }
nav a:first-child { margin-left: 0; }
nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
main { padding-top: 28px; padding-bottom: 40px; }
h1 { font-size: 32px; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 6px; }
h2 { font-size: 21px; margin: 34px 0 8px; }
h3 { font-size: 17px; margin: 22px 0 6px; }
.lede { color: var(--muted); font-size: 19px; margin-top: 4px; }
.meta { color: var(--muted); font-size: 15px; margin: 0 0 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 18px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 9px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
footer { border-top: 1px solid var(--line); padding-top: 16px; padding-bottom: 32px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); margin-right: 14px; }
@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 27px; }
  nav a { margin-left: 12px; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  td { border-bottom: none; padding: 2px 0; }
  tr { border-bottom: 1px solid var(--line); padding: 10px 0; }
  td:first-child { font-weight: 600; }
}
.skip { position: absolute; left: -9999px; top: 8px; background: var(--accent); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 12px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
address { font-style: normal; line-height: 1.7; }
footer nav a { margin-left: 0; margin-right: 14px; }
.steps li { margin: 8px 0; }