:root {
  color-scheme: light;
  --ink: #14231d;
  --muted: #5c6c64;
  --paper: #f6f7f2;
  --card: #ffffff;
  --green: #1e6b4f;
  --green-dark: #124b38;
  --lime: #c9ef65;
  --line: #dce3dc;
  --shadow: 0 24px 70px rgba(22, 49, 37, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 8%, rgba(201, 239, 101, .28), transparent 24rem),
    var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--green); text-underline-offset: .18em; }
.site-header, main, footer { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: #fff;
  background: var(--green);
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .12);
}
nav { display: flex; gap: 24px; }
nav a { color: var(--muted); font-size: .94rem; font-weight: 700; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--green); }

.hero { padding: 11vh 0 9vh; max-width: 900px; }
.eyebrow { margin: 0 0 16px; color: var(--green); font-size: .78rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
h1 { margin: 0; max-width: 950px; font-size: clamp(2.8rem, 8vw, 6.9rem); line-height: .94; letter-spacing: -.065em; }
.hero-copy, .lead { max-width: 720px; margin: 30px 0; color: var(--muted); font-size: clamp(1.08rem, 2.2vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border-radius: 999px; font-weight: 800; text-decoration: none; }
.button.primary { color: #fff; background: var(--green); box-shadow: 0 10px 30px rgba(30, 107, 79, .22); }
.button.primary:hover { background: var(--green-dark); }
.button.secondary { color: var(--ink); border: 1px solid var(--line); background: rgba(255,255,255,.65); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-bottom: 100px; }
.card { padding: 30px; border: 1px solid var(--line); border-radius: 26px; background: rgba(255,255,255,.86); box-shadow: var(--shadow); }
.card-number { color: var(--green); font-weight: 850; }
.card h2 { margin: 34px 0 10px; font-size: 1.45rem; letter-spacing: -.03em; }
.card p { margin: 0; color: var(--muted); }

.document { max-width: 840px; padding: 9vh 0 100px; }
.document h1 { font-size: clamp(2.7rem, 7vw, 5.3rem); }
.document section { margin-top: 52px; padding-top: 26px; border-top: 1px solid var(--line); }
.document h2 { margin: 0 0 10px; font-size: 1.55rem; letter-spacing: -.03em; }
.document p { color: var(--muted); }
.support > .button { margin-top: 4px; }
.faq details { padding: 20px 0; border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; color: var(--ink); font-weight: 800; }
.faq details p { margin-bottom: 0; }

footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px 0 38px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }

@media (max-width: 760px) {
  .site-header { align-items: flex-start; padding: 20px 0; }
  nav { flex-direction: column; align-items: flex-end; gap: 6px; }
  .hero { padding-top: 8vh; }
  .features { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: no-preference) {
  .card { transition: transform .2s ease, box-shadow .2s ease; }
  .card:hover { transform: translateY(-4px); box-shadow: 0 30px 80px rgba(22, 49, 37, .14); }
}