:root {
  --bg: #ffffff; --bg-alt: #f4f6f9; --fg: #18202a; --muted: #5a6573; --line: #dfe4ea;
  --accent: #1f5fd6; --accent-2: #0f9d8a; --accent-fg: #ffffff; --accent-soft: #eaf1fd;
  --card: #ffffff; --shadow: 0 1px 2px rgba(16,24,40,.06), 0 4px 16px rgba(16,24,40,.06);
  --radius: 12px; --max: 1080px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1318; --bg-alt: #151a21; --fg: #e7ebf0; --muted: #9ba6b3; --line: #262d37;
    --accent: #7ea6ff; --accent-2: #4fd1bd; --accent-fg: #0b1020; --accent-soft: #1b2640;
    --card: #161b22; --shadow: 0 1px 2px rgba(0,0,0,.4);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 var(--font); }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 16px; top: 8px; background: var(--bg); padding: 6px 10px; z-index: 10; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
header.site { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.logo { font-weight: 800; font-size: 20px; color: var(--fg); text-decoration: none; letter-spacing: .2px; }
.logo .mark { color: var(--accent); margin-right: 6px; }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; white-space: nowrap; }
nav a:hover { color: var(--fg); }
nav a[aria-current="page"] { color: var(--fg); font-weight: 600; }
main { min-height: 60vh; }
section { padding: 56px 0; }
section.alt { background: var(--bg-alt); }
h1 { font-size: clamp(32px, 5vw, 50px); line-height: 1.12; margin: 0 0 18px; letter-spacing: -.5px; }
h2 { font-size: clamp(24px, 3vw, 32px); line-height: 1.2; margin: 0 0 14px; letter-spacing: -.3px; }
h3 { font-size: 19px; margin: 0 0 8px; }
p { margin: 0 0 14px; }
.lead { font-size: clamp(18px, 2.2vw, 21px); color: var(--muted); max-width: 720px; }
.hero { padding: 72px 0 56px; background:
  radial-gradient(1200px 380px at 85% -10%, var(--accent-soft), transparent 70%), var(--bg); }
.hero .eyebrow { color: var(--accent-2); font-weight: 700; text-transform: uppercase; letter-spacing: 1px; font-size: 13px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.btn { display: inline-block; padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); color: var(--fg); background: var(--card); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card p { color: var(--muted); margin: 0; font-size: 16px; }
.steps { counter-reset: step; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.step { position: relative; padding-left: 52px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 0; width: 36px; height: 36px;
  border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 800; display: grid; place-items: center; }
.step p { color: var(--muted); font-size: 16px; }
.prose > * { max-width: 760px; }
.prose h2 { margin-top: 36px; } .prose h2:first-child { margin-top: 0; }
.prose ul { padding-left: 22px; } .prose li { margin: 6px 0; }
.note { border-left: 4px solid var(--accent-2); background: var(--bg-alt); padding: 14px 18px; border-radius: 8px; color: var(--fg); }
.faq dt { font-weight: 700; margin-top: 22px; } .faq dd { margin: 6px 0 0; color: var(--muted); }
.pill { display: inline-block; font-size: 13px; font-weight: 700; padding: 2px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); vertical-align: middle; }
footer.site { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 15px; }
footer .fine { font-size: 13px; }
@media (max-width: 640px) {
  body { font-size: 16px; }
  nav a { margin: 0 14px 0 0; }
  .bar { padding-top: 10px; padding-bottom: 10px; }
  section { padding: 40px 0; }
}