/* Host palette from docs/HOST-DESIGN.md: ink canvas, marker-green accent, system font. */
:root {
  color-scheme: dark;
  --canvas: #080B09;
  --surface: #141815;
  --text: #F2F5EF;
  --muted: #ADB6AF;
  --accent: #C7FF5F;
  --on-accent: #11160A;
  --line: #262C27;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
}
main { max-width: 620px; margin: 0 auto; padding: 32px 24px 64px; }
@media (max-width: 359px) { main { padding-left: 20px; padding-right: 20px; } }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 32px; }
header .mark { display: block; line-height: 0; }
header .mark img { height: 40px; width: auto; }
nav { display: flex; gap: 8px; }
nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border-radius: 16px; color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 600; }
nav a[aria-current] { color: var(--text); background: var(--surface); }
h1 { font-size: 34px; line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.01em; }
h2 { font-size: 22px; line-height: 1.25; margin: 32px 0 8px; }
p, ul, ol { margin: 0 0 12px; }
ul, ol { padding-left: 24px; }
li { margin-bottom: 8px; }
.muted { color: var(--muted); }
.card { background: var(--surface); border-radius: 20px; padding: 20px 24px; margin: 24px 0; }
.card h2 { margin-top: 0; }
.button { display: inline-flex; align-items: center; min-height: 48px; padding: 0 20px; border-radius: 16px; background: var(--accent); color: var(--on-accent); font-weight: 600; text-decoration: none; }
a { color: var(--accent); }
strong { font-weight: 600; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.steps { list-style: none; counter-reset: step; padding-left: 0; }
.steps li { counter-increment: step; position: relative; padding-left: 44px; margin-bottom: 16px; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 15px; background: var(--surface); color: var(--accent); font-size: 15px; font-weight: 600; display: flex; align-items: center; justify-content: center; }
.prompts { list-style: none; padding-left: 0; }
.prompts li { background: var(--surface); border-radius: 16px; padding: 12px 16px; color: var(--text); }