:root {
  --bg: #f7faf9;
  --surface: #ffffff;
  --text: #1f2d2a;
  --muted: #64736f;
  --accent: #3f6f68;
  --accent-dark: #2e5751;
  --soft: #e8f1ef;
  --border: #dce7e4;
  --max: 1120px;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(31,45,42,.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(92%, var(--max)); margin: 0 auto; }

.site-header {
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
}
.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  font-size: .95rem;
}
.nav-links a:hover { color: var(--accent-dark); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 750;
  border: 1px solid transparent;
  transition: .2s ease;
}
.button-primary { background: var(--accent); color: #fff; }
.button-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.button-secondary { background: #fff; border-color: var(--border); color: var(--accent-dark); }
.button-secondary:hover { background: var(--soft); }

.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(circle at 85% 20%, #dfeeea 0, transparent 28%),
    linear-gradient(180deg, #fbfdfc 0%, #f2f7f5 100%);
}
.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-weight: 800;
  font-size: .78rem;
}
.hero h1, .page-hero h1 {
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  line-height: .98;
  letter-spacing: -.055em;
  max-width: 900px;
  margin: 16px 0 24px;
}
.hero p, .page-hero p {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--muted);
  max-width: 720px;
}
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }

.section { padding: 76px 0; }
.section-alt { background: #fff; }
.section h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -.04em;
  line-height: 1.05;
  margin: 0 0 16px;
}
.section-intro { color: var(--muted); max-width: 720px; margin-bottom: 34px; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; font-size: 1.25rem; }
.card p { color: var(--muted); margin-bottom: 0; }

.callout {
  background: var(--accent-dark);
  color: white;
  border-radius: 28px;
  padding: 44px;
}
.callout p { color: rgba(255,255,255,.82); max-width: 700px; }

.page-hero { padding: 72px 0 48px; }
.page-hero h1 { font-size: clamp(2.5rem, 5vw, 4.6rem); }

.prose { max-width: 760px; }
.prose h2 { margin-top: 36px; }
.prose p, .prose li { color: var(--muted); }

.faq details {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 12px;
}
.faq summary { cursor: pointer; font-weight: 750; }
.faq details p { color: var(--muted); }

.notice {
  background: #fff8e8;
  border: 1px solid #ead9ad;
  border-radius: 14px;
  padding: 18px 20px;
  color: #5e522e;
}

.footer {
  padding: 44px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .92rem;
}
.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.footer a { color: var(--accent-dark); }

.mobile-toggle { display: none; }

@media (max-width: 820px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .nav { position: relative; }
  .mobile-toggle {
    display: inline-flex;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 10px;
    padding: 9px 12px;
    font: inherit;
    font-weight: 700;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 18px;
    flex-direction: column;
    align-items: stretch;
  }
  .nav-links.open { display: flex; }
  .hero { padding-top: 70px; }
}