:root {
    --ink: #0b0d0f; --ink-2: #111519; --panel: #151a1f; --line: #2b3239;
    --muted: #84909a; --paper: #f3f0e8; --lime: #c9ff4b; --violet: #a58bff;
    --coral: #ff6f61; --cyan: #5ce1e6; --radius: 5px;
    color-scheme: dark;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin: 0; background: var(--ink); color: var(--paper); font: 16px/1.6 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
  a { color: inherit; }
  .wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
  .eyebrow { letter-spacing: .16em; font-size: 12px; color: var(--muted); font-weight: 650; }

  header { position: sticky; top: 0; z-index: 10; background: rgba(11,13,15,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
  .nav { display: flex; align-items: center; gap: 28px; padding: 16px 0; }
  .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; margin-right: auto; }
  .mark { width: 38px; height: 38px; display: grid; place-items: center; background: var(--lime); color: var(--ink); font-size: 22px; font-weight: 900; letter-spacing: -4px; }
  .mark span { font-size: 13px; vertical-align: top; }
  .brand strong { font-size: 13px; letter-spacing: .14em; }
  .nav a:not(.brand):not(.cta) { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; }
  .nav a:not(.brand):not(.cta):hover { color: var(--paper); }
  .cta { background: var(--lime); color: var(--ink); text-decoration: none; font-weight: 800; font-size: 13px; letter-spacing: .06em; padding: 11px 20px; border-radius: var(--radius); }
  .cta:hover { filter: brightness(1.08); }
  .cta.ghost { background: transparent; color: var(--paper); border: 1px solid var(--line); }
  .cta.ghost:hover { border-color: var(--muted); filter: none; }

  .hero { padding: 96px 0 72px; text-align: left; }
  .hero h1 { font-size: clamp(34px, 5.4vw, 58px); line-height: 1.08; letter-spacing: -.02em; margin: 18px 0 20px; max-width: 780px; }
  .hero h1 em { font-style: normal; color: var(--lime); }
  .hero p.lead { font-size: 19px; color: #c4cad1; max-width: 640px; margin: 0 0 32px; }
  .hero .actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
  .trust { margin-top: 26px; color: var(--muted); font-size: 14px; }
  .trust b { color: var(--paper); font-weight: 650; }

  section { padding: 72px 0; border-top: 1px solid var(--line); }
  h2 { font-size: clamp(26px, 3.4vw, 36px); letter-spacing: -.01em; margin: 10px 0 14px; }
  .section-lead { color: #c4cad1; max-width: 620px; margin-bottom: 40px; }

  .grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
  .card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
  .card h3 { margin: 14px 0 8px; font-size: 17px; }
  .card p { color: var(--muted); font-size: 14.5px; margin: 0; }
  .chip { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: var(--radius); font-weight: 900; font-size: 16px; background: var(--ink-2); border: 1px solid var(--line); }
  .lime { color: var(--lime); } .violet { color: var(--violet); } .coral { color: var(--coral); } .cyan { color: var(--cyan); }

  .steps { counter-reset: step; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
  .step { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: var(--ink-2); }
  .step::before { counter-increment: step; content: "0" counter(step); font-family: ui-monospace, monospace; color: var(--lime); font-size: 13px; letter-spacing: .1em; }
  .step h3 { margin: 12px 0 8px; font-size: 17px; }
  .step p { color: var(--muted); font-size: 14.5px; margin: 0; }

  .plans { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); max-width: 820px; }
  .plan { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; display: flex; flex-direction: column; }
  .plan.featured { border-color: var(--lime); position: relative; }
  .plan .badge { position: absolute; top: -11px; left: 26px; background: var(--lime); color: var(--ink); font-size: 11px; font-weight: 800; letter-spacing: .08em; padding: 3px 10px; border-radius: 99px; }
  .plan h3 { margin: 0 0 4px; font-size: 15px; letter-spacing: .1em; }
  .price { font-size: 42px; font-weight: 800; letter-spacing: -.02em; margin: 8px 0 2px; }
  .price small { font-size: 15px; color: var(--muted); font-weight: 600; }
  .plan .who { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
  .plan ul { list-style: none; margin: 0 0 26px; padding: 0; display: grid; gap: 10px; }
  .plan li { font-size: 14.5px; color: #c4cad1; padding-left: 24px; position: relative; }
  .plan li::before { content: "✓"; position: absolute; left: 0; color: var(--lime); font-weight: 800; }
  .plan .cta { text-align: center; margin-top: auto; }
  .plans-note { color: var(--muted); font-size: 14px; margin-top: 22px; max-width: 720px; }

  .principles { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
  .principle { border-left: 3px solid var(--lime); padding: 4px 0 4px 20px; }
  .principle:nth-child(2) { border-color: var(--violet); }
  .principle:nth-child(3) { border-color: var(--cyan); }
  .principle h3 { margin: 0 0 6px; font-size: 16px; }
  .principle p { color: var(--muted); font-size: 14.5px; margin: 0; }

  details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-2); margin-bottom: 12px; }
  summary { cursor: pointer; padding: 18px 22px; font-weight: 650; font-size: 15px; list-style: none; display: flex; }
  summary::after { content: "+"; margin-left: auto; color: var(--lime); font-weight: 800; }
  details[open] summary::after { content: "–"; }
  details p { padding: 0 22px 18px; margin: 0; color: var(--muted); font-size: 14.5px; }

  .final { text-align: center; padding: 96px 0; }
  .final h2 { margin-bottom: 12px; }
  .final p { color: var(--muted); margin: 0 0 30px; }

  footer { border-top: 1px solid var(--line); padding: 34px 0 46px; color: var(--muted); font-size: 13.5px; }
  footer .wrap { display: flex; gap: 22px; flex-wrap: wrap; align-items: center; }
  footer a { color: var(--muted); text-decoration: none; }
  footer a:hover { color: var(--paper); }
  footer .brand-line { margin-right: auto; }
  @media (max-width: 640px) { .nav a[data-optional] { display: none; } .hero { padding: 64px 0 48px; } }

  .principles-block { margin-top: 34px; }
  .faq-block { max-width: 760px; margin-top: 30px; }