:root {
  color-scheme: dark;
  --ink: #111312;
  --panel: #171a18;
  --paper: #f5f1e8;
  --muted: #a7afaa;
  --line: rgba(245, 241, 232, 0.16);
  --signal: #43c697;
  --forest: #0d5b47;
}

* { box-sizing: border-box; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 10000; padding: 10px 14px; border: 2px solid #43c697; border-radius: 8px; background: #fff; color: #111; font-weight: 800; transform: translateY(calc(-100% - 24px)); transition: transform 160ms ease; }
.skip-link:focus { transform: translateY(0); }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible { outline: 3px solid #43c697; outline-offset: 3px; }
main:focus { outline: none; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
.site-shell { min-height: 100vh; overflow: hidden; }
.topbar {
  min-height: 72px;
  padding: 0 clamp(22px, 5vw, 76px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 750; text-decoration: none; }
.brand img { width: 28px; height: 28px; }
.topbar nav { display: flex; gap: 24px; }
.topbar nav a { color: var(--muted); font-size: 13px; text-decoration: none; }
.topbar nav a:hover { color: var(--paper); }
.hero {
  position: relative;
  padding: clamp(84px, 10vw, 150px) clamp(22px, 7vw, 110px) clamp(76px, 9vw, 128px);
  background-image: radial-gradient(circle, rgba(245,241,232,.05) .65px, transparent .8px);
  background-size: 20px 20px;
}
.hero::after {
  content: '';
  position: absolute;
  width: min(36vw, 480px);
  aspect-ratio: 1;
  right: -9%;
  bottom: -38%;
  border: 1px solid rgba(67,198,151,.17);
  border-radius: 50%;
}
.eyebrow { color: var(--signal); font-size: 12px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1; letter-spacing: -.04em; }
h1 { max-width: 980px; margin-top: 20px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(54px, 8vw, 112px); font-weight: 500; line-height: .92; }
.lede { max-width: 720px; margin: 30px 0 0; color: var(--muted); font-size: clamp(18px, 2vw, 22px); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 48px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 7px; font-weight: 750; text-decoration: none; }
.button.primary { border-color: var(--signal); background: var(--signal); color: var(--ink); }
.section { padding: clamp(72px, 9vw, 120px) clamp(22px, 7vw, 110px); border-top: 1px solid var(--line); }
.section.light { background: var(--paper); color: var(--ink); }
.section-heading { display: grid; grid-template-columns: .45fr 1.25fr .65fr; gap: clamp(28px, 6vw, 90px); align-items: start; }
.section-heading h2 { max-width: 820px; font-size: clamp(42px, 5.2vw, 76px); }
.section-heading > p { margin: 5px 0 0; color: var(--muted); font-size: 16px; }
.section.light .section-heading > p { color: rgba(17,19,18,.62); }
.step-list { margin-top: 72px; border-top: 1px solid var(--line); }
.section.light .step-list { border-color: rgba(17,19,18,.18); }
.step {
  padding: 28px 0;
  display: grid;
  grid-template-columns: 80px minmax(220px, .65fr) minmax(0, 1fr);
  gap: 28px;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.section.light .step { border-color: rgba(17,19,18,.18); }
.step > span { color: var(--signal); font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; }
.section.light .step > span { color: var(--forest); }
.step h3 { font-size: clamp(23px, 2.4vw, 34px); }
.step p { max-width: 690px; margin: 0; color: var(--muted); }
.section.light .step p { color: rgba(17,19,18,.62); }
.split { margin-top: 72px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--line); }
.section.light .split { border-color: rgba(17,19,18,.18); }
.split article { min-height: 320px; padding: clamp(26px, 4vw, 48px); }
.split article + article { border-left: 1px solid var(--line); }
.section.light .split article + article { border-color: rgba(17,19,18,.18); }
.split h3 { margin-bottom: 20px; font-size: clamp(28px, 3vw, 44px); }
.split p, .split li { color: var(--muted); }
.section.light .split p, .section.light .split li { color: rgba(17,19,18,.64); }
.split ul { margin: 24px 0 0; padding-left: 18px; }
.split li { margin: 10px 0; }
.visual {
  margin-top: 72px;
  padding: clamp(26px, 5vw, 54px);
  border: 1px solid var(--line);
  background: var(--panel);
}
.visual img { display: block; width: 100%; height: auto; }
.visual-caption { margin: 18px 0 0; color: var(--muted); font-size: 13px; }
.notice { margin-top: 36px; padding: 22px 24px; border-left: 3px solid var(--signal); background: rgba(67,198,151,.07); color: var(--muted); }
.section.light .notice { background: rgba(13,91,71,.07); color: rgba(17,19,18,.66); }
.notice strong { color: var(--paper); }
.section.light .notice strong { color: var(--ink); }
.faq { max-width: 980px; margin: 62px auto 0; }
.faq details { padding: 22px 0; border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 750; }
.faq p { margin: 14px 0 0; color: var(--muted); }
.cta { padding: clamp(68px, 8vw, 108px) clamp(22px, 7vw, 110px); text-align: center; border-top: 1px solid var(--line); }
.cta h2 { max-width: 850px; margin: 0 auto; font-family: Georgia, "Times New Roman", serif; font-size: clamp(46px, 6vw, 84px); font-weight: 500; }
.cta p { max-width: 650px; margin: 24px auto 0; color: var(--muted); }
.cta .actions { justify-content: center; }
.footer { padding: 28px clamp(22px, 5vw, 76px); display: flex; flex-wrap: wrap; gap: 10px 20px; color: var(--muted); border-top: 1px solid var(--line); font-size: 13px; }
.footer a { text-decoration: none; }

@media (max-width: 800px) {
  .section-heading { grid-template-columns: 1fr; }
  .step { grid-template-columns: 54px minmax(0, 1fr); }
  .step p { grid-column: 2; }
  .split { grid-template-columns: 1fr; }
  .split article + article { border-left: 0; border-top: 1px solid var(--line); }
}

@media (max-width: 560px) {
  .topbar { min-height: 66px; padding: 0 18px; }
  .topbar nav a:first-child { display: none; }
  .hero, .section, .cta { padding-left: 20px; padding-right: 20px; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .step p { grid-column: 1; }
}