:root {
  --ink: #14231d;
  --muted: #596960;
  --paper: #f6f8f4;
  --surface: #ffffff;
  --line: #d9e2dc;
  --brand: #126b4d;
  --brand-dark: #0d513b;
  --soft: #e7f2ec;
  --warm: #f5ead5;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(20, 35, 29, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--brand-dark); text-underline-offset: 3px; }
a:hover { color: var(--brand); }

.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(760px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(246, 248, 244, 0.94);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { color: var(--ink); font-weight: 800; letter-spacing: -0.03em; text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 20px; font-size: 0.93rem; }
.nav-links a { color: var(--muted); text-decoration: none; }

.hero { padding: 52px 0 60px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr); gap: 64px; align-items: center; }
h1, h2, h3 { line-height: 1.1; letter-spacing: -0.04em; margin-top: 0; }
h1 { font-size: clamp(2.7rem, 5.4vw, 4.7rem); line-height: 1.04; max-width: 12ch; margin-bottom: 20px; }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); margin-bottom: 20px; }
h3 { font-size: 1.28rem; margin-bottom: 10px; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 1.8vw, 1.2rem); max-width: 62ch; }
.price { margin: 20px 0 18px; display: flex; align-items: baseline; gap: 10px; }
.price strong { font-size: 2rem; letter-spacing: -0.04em; }
.price span { color: var(--muted); }

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 22px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--brand);
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  font-size: 1rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform .16s ease, background .16s ease;
}

.button:hover { color: #fff; background: var(--brand-dark); transform: translateY(-1px); }
.button.secondary { background: transparent; color: var(--brand-dark); }
.button.secondary:hover { background: var(--soft); color: var(--brand-dark); }
.button.is-disabled { pointer-events: none; opacity: .58; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.microcopy { color: var(--muted); font-size: .88rem; margin-top: 14px; }

.product-window {
  overflow: hidden;
  border: 1px solid #cbd8d0;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.window-bar { display: flex; align-items: center; gap: 7px; padding: 14px 16px; border-bottom: 1px solid var(--line); background: #f3f6f4; }
.window-bar i { width: 9px; height: 9px; border-radius: 50%; background: #b9c7bf; }
.product-body { padding: 24px; }
.sample-title { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 18px; }
.sample-title strong { font-size: 1.08rem; }
.sample-title span { color: var(--muted); font-size: .8rem; }
.sample-row { display: grid; grid-template-columns: 86px 1fr 84px; gap: 12px; padding: 14px 0; border-top: 1px solid var(--line); font-size: .82rem; }
.sample-row span:last-child { color: var(--brand-dark); font-weight: 700; text-align: right; }

.band { padding: 72px 0; background: var(--surface); border-block: 1px solid var(--line); }
.section { padding: 78px 0; }
.section-copy { max-width: 720px; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 44px; border-top: 1px solid var(--line); }
.feature { padding: 28px 32px 8px 0; border-bottom: 1px solid var(--line); }
.feature p { color: var(--muted); margin: 0; }
.steps { counter-reset: steps; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 40px; }
.step { counter-increment: steps; }
.step::before { content: "0" counter(steps); display: block; margin-bottom: 18px; color: var(--brand); font-weight: 800; }
.step p { color: var(--muted); margin-bottom: 0; }

.trust { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.trust-panel { border-left: 3px solid var(--brand); padding: 4px 0 4px 24px; }
.trust-panel p { color: var(--muted); }
.plain-list { padding-left: 20px; }
.plain-list li { margin: 8px 0; }

.checkout-box { margin: 64px auto; padding: 40px; background: var(--ink); color: #fff; border-radius: var(--radius); }
.checkout-box h2 { max-width: 15ch; }
.checkout-box p { color: #d5dfd9; max-width: 65ch; }
.checkout-box .button { background: #71d3aa; border-color: #71d3aa; color: #0b3325; }
.checkout-box .button:hover { background: #91e1bd; color: #0b3325; }

.legal { padding: 64px 0 90px; }
.legal h1 { font-size: clamp(2.4rem, 5vw, 4rem); max-width: 16ch; }
.legal h2 { margin-top: 48px; font-size: 1.55rem; letter-spacing: -0.025em; }
.legal h3 { margin-top: 30px; font-size: 1.1rem; letter-spacing: -0.015em; }
.legal p, .legal li { color: #35473e; }
.legal .updated { color: var(--muted); font-size: .9rem; }
.fact-table { width: 100%; border-collapse: collapse; margin: 28px 0; background: var(--surface); }
.fact-table th, .fact-table td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.fact-table th { width: 34%; color: var(--muted); font-size: .9rem; }

.site-footer { padding: 36px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: .88rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 14px; }

@media (max-width: 820px) {
  .hero { padding-top: 52px; }
  .hero-grid, .trust { grid-template-columns: minmax(0, 1fr); }
  .hero-grid { gap: 42px; }
  .feature-list, .steps { grid-template-columns: 1fr; }
  .feature { padding-right: 0; }
  .nav-links a:not(:last-child) { display: none; }
}

@media (max-width: 520px) {
  .wrap, .narrow { width: min(100% - 28px, 1120px); }
  .nav { min-height: 62px; }
  .hero { padding: 44px 0 48px; }
  h1 { font-size: clamp(2.25rem, 11.8vw, 3rem); }
  .product-body, .checkout-box { padding: 24px; }
  .sample-row { grid-template-columns: 72px 1fr; }
  .sample-row span:last-child { grid-column: 2; text-align: left; }
  .actions .button { width: 100%; }
  .legal { padding-top: 44px; }
  .fact-table th, .fact-table td { display: block; width: 100%; }
  .fact-table th { padding-bottom: 4px; }
  .fact-table td { padding-top: 4px; }
}