:root {
  color-scheme: light;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --soft: #f8fafc;
  --brand: #0d9488;
  --brand-dark: #0f766e;
  --brand-soft: #f0fdfa;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
a { color: inherit; }
.wrap { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(226, 232, 240, .9);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
}
.nav-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; }
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
}
.nav-link { color: var(--brand-dark); font-size: 14px; font-weight: 600; text-decoration: none; }
.hero {
  padding: 72px 0 58px;
  background:
    radial-gradient(circle at 80% 20%, rgba(20, 184, 166, .16), transparent 32%),
    linear-gradient(180deg, #fff, var(--soft));
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex;
  border: 1px solid #99f6e4;
  border-radius: 999px;
  padding: 5px 11px;
  color: var(--brand-dark);
  background: var(--brand-soft);
  font-size: 12px;
  font-weight: 700;
}
h1 { margin: 18px 0 16px; font-size: clamp(38px, 6vw, 62px); line-height: 1.05; letter-spacing: -.04em; }
.lead { margin: 0; max-width: 650px; color: #475569; font-size: clamp(17px, 2vw, 21px); }
.hero-note { margin-top: 18px; color: var(--muted); font-size: 13px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 26px;
  padding: 13px 22px;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 25px rgba(13, 148, 136, .2);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}
.button:hover { background: var(--brand-dark); }
.example {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(15, 23, 42, .12);
}
.example-head { padding: 12px 18px; background: #f1f5f9; color: var(--muted); font-size: 12px; font-weight: 600; }
.example-body { padding: 22px; }
.post, .reply { border: 1px solid var(--line); border-radius: 14px; padding: 15px; font-size: 14px; }
.post { background: var(--soft); color: #475569; }
.arrow { padding: 10px 0; color: var(--brand); text-align: center; font-weight: 700; }
.reply { border-color: #99f6e4; background: var(--brand-soft); color: #134e4a; }
.section { padding: 72px 0; }
.section.alt { background: var(--soft); }
.section h2 { margin: 0 0 14px; font-size: clamp(27px, 4vw, 40px); line-height: 1.15; letter-spacing: -.025em; }
.section-intro { max-width: 720px; margin: 0 0 32px; color: var(--muted); font-size: 17px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { border: 1px solid var(--line); border-radius: 18px; padding: 24px; background: #fff; }
.card strong { display: block; margin-bottom: 8px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; }
.step { counter-increment: step; }
.step::before {
  content: counter(step);
  width: 34px;
  height: 34px;
  margin-bottom: 13px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}
.step h3 { margin: 0 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.faq { max-width: 780px; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.cta { padding: 74px 0; background: #0f172a; color: #fff; text-align: center; }
.cta h2 { max-width: 760px; margin: 0 auto; font-size: clamp(30px, 5vw, 48px); line-height: 1.12; }
.cta p { margin: 15px auto 0; max-width: 620px; color: #cbd5e1; }
.cta .button { background: #14b8a6; }
.footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 12px; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 18px; }
.footer a:hover { color: var(--brand-dark); }
@media (max-width: 760px) {
  .hero { padding: 46px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .section { padding: 52px 0; }
  .cards, .steps { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: center; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }