:root {
  --green: #16a34a;
  --green-dark: #15803d;
  --green-light: #22c55e;
  --ink: #111827;
  --muted: #6b7280;
  --bg: #ffffff;
  --bg-soft: #f9fafb;
  --border: #e5e7eb;
  --radius: 14px;
  --max: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: var(--green-dark); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--ink); text-decoration: none; }
.brand .logo { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, var(--green-light), var(--green-dark)); display: grid; place-items: center; font-size: 20px; }
.nav a { margin-left: 22px; text-decoration: none; color: var(--muted); font-weight: 600; font-size: 15px; }
.nav a:hover { color: var(--ink); }

/* Hero */
.hero {
  background: linear-gradient(160deg, #ecfdf5 0%, #ffffff 60%);
  padding: 72px 0 64px;
  text-align: center;
}
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -1px; }
.hero h1 .accent { color: var(--green); }
.hero p { font-size: clamp(17px, 2.5vw, 21px); color: var(--muted); max-width: 620px; margin: 0 auto 28px; }

.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 999px;
  font-weight: 700; text-decoration: none; font-size: 16px;
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--border); }

/* Sections */
.section { padding: 64px 0; }
.section h2 { font-size: clamp(26px, 4vw, 36px); text-align: center; margin: 0 0 12px; letter-spacing: -0.5px; }
.section .lead { text-align: center; color: var(--muted); max-width: 620px; margin: 0 auto 44px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.card {
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
}
.card .ico { font-size: 30px; }
.card h3 { margin: 14px 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* Legal pages */
.legal { padding: 48px 0 80px; }
.legal h1 { font-size: 34px; margin-bottom: 6px; letter-spacing: -0.5px; }
.legal .updated { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.legal h2 { font-size: 22px; margin-top: 36px; }
.legal h3 { font-size: 17px; margin-top: 24px; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 8px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-soft); padding: 40px 0; margin-top: 40px; }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }
.site-footer .links a { margin-right: 18px; color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; }
.site-footer .links a:hover { color: var(--ink); }
.site-footer .copy { color: var(--muted); font-size: 14px; }