:root {
  --green-900: #14532d;
  --green-700: #15803d;
  --green-100: #dcfce7;
  --gray-900: #111827;
  --gray-600: #4b5563;
  --gray-100: #f3f4f6;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
}
.container { width: min(1100px, 92%); margin: 0 auto; }
.site-header {
  border-bottom: 1px solid #e5e7eb;
  background: rgba(255,255,255,0.95);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1rem;
}
.logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--green-900);
  text-decoration: none;
}
.nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.nav a { color: var(--gray-600); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--green-700); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}
.btn-primary { background: var(--green-700); color: white; }
.btn-primary:hover { background: var(--green-900); }
.btn-ghost { border-color: #d1d5db; color: var(--gray-900); }
.btn-lg { padding: 0.8rem 1.25rem; }
.hero {
  padding: 5rem 0 4rem;
  background: linear-gradient(180deg, var(--green-100), white);
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--green-700);
  font-weight: 700;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin: 0.5rem 0 1rem;
  max-width: 12ch;
}
.lead { font-size: 1.15rem; color: var(--gray-600); max-width: 60ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.features { padding: 3rem 0 5rem; }
.grid-3, .grid-4 {
  display: grid;
  gap: 1.25rem;
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.plan .price { font-size: 2rem; font-weight: 800; margin: 0.5rem 0 1rem; }
.plan ul { padding-left: 1.1rem; color: var(--gray-600); }
.plan.featured { border-color: var(--green-700); }
.page-header { padding: 4rem 0 2rem; }
.pricing, .content-block { padding-bottom: 4rem; }
.prose { max-width: 70ch; color: var(--gray-600); }
.site-footer {
  border-top: 1px solid #e5e7eb;
  padding: 2rem 0;
  color: var(--gray-600);
  font-size: 0.95rem;
}