:root {
  --ink: #111;
  --muted: #5f6368;
  --line: #e3e3e3;
  --paper: #fff;
  --accent: #1a7f37;
  --code-bg: #f4f4f4;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #f2f2f2; --muted: #a0a4a8; --line: #2c2c2c; --paper: #111; --accent: #4ac26b; --code-bg: #1d1d1d; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.55 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 560px; margin: 0 auto; padding: 56px 20px 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 48px; }
.eyebrow { margin: 0 0 8px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 0 0 12px; font-size: 34px; line-height: 1.15; letter-spacing: -0.02em; font-weight: 650; }
h2 { margin: 40px 0 8px; font-size: 18px; letter-spacing: -0.01em; }
p { margin: 0 0 16px; }
.button {
  display: inline-block; margin: 8px 0 28px; padding: 14px 22px; border-radius: 10px;
  background: var(--ink); color: var(--paper); text-decoration: none; font-weight: 600;
}
.button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.steps { margin: 0 0 20px; padding-left: 22px; }
.steps li { margin-bottom: 10px; padding-left: 4px; }
code { background: var(--code-bg); padding: 2px 6px; border-radius: 5px; font-size: 14px; word-break: break-all; }
.note { font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 16px; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: 1px; }