:root {
  --bg: #F6F7F9; --surface: #FFFFFF; --border: #E3E6EB;
  --text: #14171C; --muted: #5B6270; --accent: #5B34D6; --accent-fill: #6D4AE8;
  --safe: #1B7F4B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #08090B; --surface: #111318; --border: #23262E;
    --text: #F3F5F7; --muted: #A2A9B6; --accent: #A98BFF; --accent-fill: #6D4AE8;
    --safe: #4CD38A;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 48px 20px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 40px; }
header a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 12px; }
.mark { width: 20px; height: 36px; flex: none; }
.brand { font-weight: 650; font-size: 18px; letter-spacing: -0.01em; }
nav { margin-left: auto; display: flex; gap: 20px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current="page"], nav a:hover { color: var(--text); }
h1 { font-size: clamp(30px, 6vw, 42px); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 16px; }
h2 { font-size: 21px; letter-spacing: -0.01em; margin: 44px 0 10px; }
h3 { font-size: 17px; margin: 28px 0 6px; }
p, li { color: var(--muted); }
strong, h1, h2, h3 { color: var(--text); }
a { color: var(--accent); }
.lede { font-size: 19px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; margin: 24px 0; }
.card p:last-child { margin-bottom: 0; }
.promise { display: flex; gap: 12px; align-items: flex-start; }
.promise svg { flex: none; margin-top: 4px; color: var(--safe); }
.button { display: inline-block; background: var(--accent-fill); color: #fff; text-decoration: none; font-weight: 600;
  padding: 12px 20px; border-radius: 10px; }
.button:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 16px 0; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text); font-weight: 600; }
td { color: var(--muted); }
.table-scroll { overflow-x: auto; }
footer { margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 14px; color: var(--muted); }
footer p { margin: 4px 0; }