:root {
  --bg: #0b1020;
  --panel: #121a2f;
  --panel2: #f4f7fb;
  --ink: #eef3ff;
  --muted: #aab6d3;
  --dark: #152039;
  --line: #263354;
  --accent: #78e3bb;
  --warn: #ffd166;
  --danger: #ff8b8b;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--ink); line-height: 1.6; }
a { color: inherit; }
.nav { max-width: 1120px; margin: auto; padding: 22px 24px; display: flex; justify-content: space-between; align-items: center; }
.brand { font-weight: 850; letter-spacing: .03em; }
.brand span { font-weight: 500; color: var(--muted); margin-left: 8px; }
.nav-link { color: var(--muted); text-decoration: none; }
.hero { max-width: 980px; margin: 64px auto 72px; padding: 0 24px; }
.eyebrow,.kicker { color: var(--accent); letter-spacing: .12em; font-size: .78rem; font-weight: 800; }
h1 { font-size: clamp(2.7rem,7vw,5.8rem); line-height: 1.02; letter-spacing: -.045em; margin: 16px 0 24px; }
h1 em { font-style: normal; color: var(--accent); }
h2 { font-size: clamp(1.8rem,4vw,3rem); line-height: 1.1; letter-spacing: -.025em; margin: 8px 0 18px; }
h3 { line-height: 1.2; }
.lead { max-width: 800px; font-size: 1.24rem; color: var(--muted); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 12px; }
.button { padding: 13px 18px; border-radius: 12px; text-decoration: none; font-weight: 750; border: 1px solid var(--line); }
.button.primary { background: var(--accent); color: #0a1a16; border-color: var(--accent); }
.button.secondary { background: transparent; color: var(--ink); }
.micro,.note,.center-note { color: var(--muted); font-size: .9rem; }
.section { max-width: 1120px; margin: 0 auto; padding: 76px 24px; }
.section.alt { max-width: none; background: var(--panel2); color: var(--dark); }
.section.alt > * { max-width: 1072px; margin-left: auto; margin-right: auto; }
.section-head { max-width: 800px; margin-bottom: 30px; }
.grid { display: grid; gap: 18px; }
.grid.three { grid-template-columns: repeat(3,1fr); }
.grid.two { grid-template-columns: repeat(2,1fr); }
.card,.price-card { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 24px; }
.card .icon { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: #1a2845; font-weight: 900; }
.card.good .icon { color: var(--accent); }
.card.warn .icon { color: var(--warn); }
.card.neutral .icon { color: #9fb7ff; }
.card ul,.boundary ul { padding-left: 20px; }
.demo { max-width: 980px; background: white; border: 1px solid #dce3ed; box-shadow: 0 24px 70px rgba(20,35,60,.12); border-radius: 24px; padding: 28px; }
.demo-title { display: flex; justify-content: space-between; gap: 18px; align-items: start; }
.pill { display: inline-block; font-size: .78rem; font-weight: 800; background: #e8eef8; color: #33415d; padding: 6px 10px; border-radius: 999px; }
.verdict { padding: 8px 12px; border-radius: 999px; font-size: .8rem; font-weight: 900; white-space: nowrap; }
.verdict.caution { background: #fff0bf; color: #6b5200; }
.impact-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin: 22px 0; }
.impact { padding: 16px; border-radius: 14px; border: 1px solid #dce3ed; display: flex; justify-content: space-between; gap: 10px; }
.impact span { color: #5c6881; text-align: right; }
.impact.pass { border-left: 4px solid #2aaf7a; }
.impact.caution { border-left: 4px solid #dfa91d; }
.simple-summary { padding: 18px; border-radius: 14px; background: #f4f7fb; }
details { margin-top: 16px; border-top: 1px solid #e0e6ef; padding-top: 16px; }
summary { cursor: pointer; font-weight: 800; }
.tech { margin-top: 12px; }
.tech > div { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid #edf0f5; }
.tech b { color: #1a8c61; }
.tech b.amber { color: #a77400; }
.tech-note { color: #66728b; font-size: .9rem; }
.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.steps article { border-top: 1px solid var(--line); padding-top: 18px; }
.steps article > span { color: var(--accent); font-size: .82rem; font-weight: 900; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.checklist { list-style: "✓  "; padding-left: 22px; }
.checklist li::marker { color: var(--accent); font-weight: 900; }
.boundary { background: #171d2d; border: 1px solid #363f57; border-radius: 20px; padding: 26px; }
.price-card.featured { border-color: var(--accent); }
.price { font-size: 2rem; font-weight: 900; margin: 14px 0; }
.price small { display: block; font-size: .8rem; color: var(--muted); font-weight: 600; }
.center-note { text-align: center; margin-top: 20px; }
.interest { text-align: center; max-width: 820px; }
.interest .hero-actions { justify-content: center; }
footer { border-top: 1px solid var(--line); max-width: 1120px; margin: 0 auto; padding: 32px 24px 54px; color: var(--muted); }
footer strong { color: var(--ink); }

@media (max-width: 820px) {
  .grid.three,.grid.two,.steps,.split,.impact-grid { grid-template-columns: 1fr; }
  .demo-title { flex-direction: column; }
  .impact { flex-direction: column; }
  .impact span { text-align: left; }
  .brand span { display: none; }
  .hero { margin-top: 34px; }
}