:root {
  color-scheme: light dark;
  --bg: #f4f7f7;
  --panel: rgba(255, 255, 255, 0.9);
  --fg: #102221;
  --muted: #4c6663;
  --accent: #008d83;
  --accent-strong: #06655f;
  --border: #d7e2e0;
  --shadow: 0 20px 60px rgba(7, 24, 22, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #081312;
    --panel: rgba(15, 29, 28, 0.88);
    --fg: #edf7f5;
    --muted: #9ab6b2;
    --accent: #4bd3c9;
    --accent-strong: #89efe7;
    --border: #1e3431;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(0, 141, 131, 0.14), transparent 32%),
    radial-gradient(circle at top right, rgba(0, 141, 131, 0.1), transparent 28%),
    var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--fg);
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 0 0 6px rgba(0, 141, 131, 0.12);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.95rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
  gap: 24px;
  align-items: stretch;
  margin-bottom: 24px;
}

.card {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-panel,
.feature,
.policy-card {
  padding: 28px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0, 141, 131, 0.12);
  color: var(--accent-strong);
  font-size: 0.86rem;
  font-weight: 600;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

h2 {
  margin-top: 28px;
  font-size: 1.08rem;
}

.lead {
  margin: 0;
  max-width: 40rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 600;
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  color: #fff;
}

.button-secondary {
  color: var(--fg);
  background: transparent;
}

.panel-title {
  margin: 0;
  font-size: 1rem;
}

.line {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.line li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
}

.dot {
  position: relative;
  width: 18px;
  min-height: 18px;
}

.dot::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--accent);
}

.dot::after {
  content: "";
  position: absolute;
  top: 22px;
  left: 8px;
  bottom: -18px;
  width: 2px;
  background: linear-gradient(var(--accent), transparent);
}

.line li:last-child .dot::after {
  display: none;
}

.muted,
.updated {
  color: var(--muted);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.feature h2,
.feature p {
  margin: 0;
}

.feature h2 {
  margin-bottom: 8px;
}

.policy {
  max-width: 860px;
}

.policy h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.footer {
  padding: 24px 6px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 860px) {
  .hero,
  .section-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
  }

  .hero-copy,
  .hero-panel,
  .feature,
  .policy-card {
    padding: 24px;
  }
}