:root {
  --bg: #f8f4ef;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #52606d;
  --brand: #2f5d50;
  --brand-dark: #22453b;
  --accent: #ece3d6;
  --line: #d9e2ec;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: linear-gradient(180deg, #fff 0%, var(--bg) 60%);
  line-height: 1.5;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: color-mix(in oklab, #fff 82%, transparent);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 0;
}

.brand {
  text-decoration: none;
  color: var(--brand-dark);
  font-weight: 700;
}

.hero {
  position: relative;
  padding: 4.8rem 0 2.8rem;
  overflow: hidden;
}

.bg-shape {
  position: absolute;
  width: 650px;
  height: 650px;
  right: -180px;
  top: -220px;
  background: radial-gradient(circle, #e8ddcb 0%, transparent 70%);
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand);
  font-size: 0.8rem;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.8rem; }
h1 { font-size: clamp(1.95rem, 4vw, 3rem); }
h2 { font-size: clamp(1.45rem, 2.6vw, 2rem); }

.lead {
  max-width: 64ch;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1.1rem;
}

.btn {
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  padding: 0.72rem 1rem;
  border: 1px solid transparent;
}

.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }

.btn-secondary {
  background: #fff;
  color: var(--brand-dark);
  border-color: var(--brand-dark);
}

.btn-outline {
  color: var(--brand-dark);
  border-color: var(--brand-dark);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 10px 24px rgba(31, 41, 51, 0.08);
}

.card ul { margin: 0; padding-left: 1.1rem; }
.note { color: var(--muted); margin-top: 0.7rem; font-size: 0.95rem; }

.section { padding: 2.2rem 0; }
.muted {
  background: var(--accent);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.tiers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}

.tier {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.tier p {
  margin: 0;
  color: var(--muted);
  min-height: 52px;
}

.steps article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
}

.site-footer {
  background: #fff;
  padding: 1rem 0 1.5rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.footer-grid a { color: var(--brand-dark); }

@media (max-width: 840px) {
  .hero-grid, .steps, .tiers { grid-template-columns: 1fr; }
}