:root {
  --ink: #162018;
  --muted: #5c675f;
  --paper: #f7f5ed;
  --card: #ffffff;
  --green: #1f6b3a;
  --green-dark: #164d2b;
  --lime: #dff25a;
  --line: #dce4dc;
  --orange: #ef7d18;
  --shadow: 0 16px 50px rgba(24, 58, 35, 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;
  font-size: 17px;
  line-height: 1.55;
}
a { color: var(--green-dark); text-underline-offset: 3px; }
img { display: block; max-width: 100%; height: auto; }
.skip-link { position: absolute; left: -9999px; top: 0; }
.skip-link:focus { left: 12px; top: 12px; z-index: 99; padding: 10px; background: #fff; }
.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(247, 245, 237, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(31, 107, 58, 0.14);
}
.nav { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 850; letter-spacing: -0.03em; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--green); color: #fff; font-size: 15px; }
.nav-links { display: none; align-items: center; gap: 18px; font-size: 15px; font-weight: 700; }
.nav-links a { color: var(--ink); text-decoration: none; }
.hero { padding: 42px 0 32px; overflow: hidden; }
.hero-grid { display: grid; gap: 28px; }
.eyebrow { margin: 0 0 10px; color: var(--green-dark); font-size: 13px; font-weight: 850; text-transform: uppercase; letter-spacing: 0.11em; }
h1, h2, h3 { margin: 0; line-height: 1.08; letter-spacing: -0.045em; }
h1 { max-width: 850px; font-size: clamp(2.35rem, 8vw, 5.4rem); }
h2 { font-size: clamp(1.8rem, 5vw, 3.1rem); }
h3 { font-size: 1.25rem; }
.lead { max-width: 740px; margin: 18px 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.3rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 24px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 18px; border: 2px solid var(--green); border-radius: 12px; background: var(--green); color: #fff; font-weight: 850; text-decoration: none; box-shadow: 0 8px 22px rgba(31, 107, 58, 0.18); }
.button:hover { background: var(--green-dark); border-color: var(--green-dark); }
.button.secondary { background: transparent; color: var(--green-dark); box-shadow: none; }
.price-panel { position: relative; padding: 22px; border-radius: 22px; background: var(--green-dark); color: #fff; box-shadow: var(--shadow); overflow: hidden; }
.price-panel::after { content: ""; position: absolute; right: -30px; top: -35px; width: 150px; height: 150px; border-radius: 50%; background: var(--lime); opacity: .18; }
.price { font-size: clamp(3.1rem, 15vw, 5.7rem); font-weight: 900; letter-spacing: -0.075em; line-height: .95; }
.price small { font-size: .28em; letter-spacing: 0; }
.price-list { display: grid; gap: 8px; margin-top: 18px; }
.price-list span { display: flex; justify-content: space-between; gap: 14px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,.2); }
.price-list strong { text-align: right; }
.proof-strip { padding: 18px 0; background: #fff; border-block: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.proof { padding: 10px 0; }
.proof strong { display: block; font-size: 1.08rem; }
.proof span { color: var(--muted); font-size: .9rem; }
.section { padding: 56px 0; }
.section-head { display: grid; gap: 12px; margin-bottom: 26px; }
.section-head p { max-width: 760px; margin: 0; color: var(--muted); }
.cards { display: grid; gap: 16px; }
.card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); box-shadow: 0 8px 30px rgba(20, 50, 29, .06); }
.card p { margin: 10px 0 0; color: var(--muted); }
.card .tag { display: inline-block; margin-bottom: 14px; padding: 5px 9px; border-radius: 999px; background: #ecf4ed; color: var(--green-dark); font-size: .78rem; font-weight: 850; text-transform: uppercase; letter-spacing: .06em; }
.warning { border-color: #f3c58e; background: #fff7ec; }
.split { display: grid; gap: 24px; align-items: center; }
.product-photo { border-radius: 22px; aspect-ratio: 4/3; object-fit: cover; box-shadow: var(--shadow); background: #d8dfd8; }
.checklist { margin: 20px 0 0; padding: 0; list-style: none; }
.checklist li { position: relative; padding: 8px 0 8px 31px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; top: 7px; color: var(--green); font-weight: 900; }
.data-table { width: 100%; border-collapse: collapse; margin-top: 22px; background: #fff; border-radius: 16px; overflow: hidden; box-shadow: 0 8px 30px rgba(20, 50, 29, .06); }
.data-table th, .data-table td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { background: #eaf2ea; font-size: .9rem; }
.faq { display: grid; gap: 10px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.faq summary { cursor: pointer; padding: 17px 18px; font-weight: 850; }
.faq details p { margin: 0; padding: 0 18px 18px; color: var(--muted); }
.calculator { display: grid; gap: 18px; padding: 22px; border-radius: 20px; background: #fff; box-shadow: var(--shadow); }
.fields { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-weight: 750; }
input { min-height: 48px; width: 100%; padding: 10px 12px; border: 1px solid #b9c7bb; border-radius: 10px; background: #fff; color: var(--ink); font: inherit; }
input:focus { outline: 3px solid rgba(31, 107, 58, .22); border-color: var(--green); }
.result { padding: 18px; border-radius: 16px; background: var(--green-dark); color: #fff; }
.result-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.result strong { display: block; font-size: 1.55rem; }
.result span { font-size: .86rem; opacity: .84; }
.fine-print { color: var(--muted); font-size: .86rem; }
.cta { padding: 34px; border-radius: 24px; background: var(--lime); }
.cta p { max-width: 720px; margin: 12px 0 20px; }
.site-footer { padding: 36px 0 90px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-grid { display: grid; gap: 18px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 18px; }
.sticky-cta { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 20; display: flex; gap: 8px; padding: 8px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.96); box-shadow: 0 12px 40px rgba(0,0,0,.15); }
.sticky-cta .button { flex: 1; padding-inline: 9px; font-size: .9rem; }

@media (min-width: 760px) {
  .shell { width: min(1120px, calc(100% - 64px)); }
  .nav-links { display: flex; }
  .hero { padding: 72px 0 54px; }
  .hero-grid { grid-template-columns: minmax(0, 1.45fr) minmax(320px, .65fr); align-items: end; }
  .proof-grid { grid-template-columns: repeat(4, 1fr); }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr 1fr; }
  .calculator { grid-template-columns: .85fr 1.15fr; padding: 30px; }
  .fields { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr auto; align-items: end; }
  .sticky-cta { display: none; }
  .site-footer { padding-bottom: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}