:root {
  color-scheme: light;
  --ink: #18202a;
  --muted: #5d6875;
  --line: #d9dee5;
  --paper: #ffffff;
  --surface: #f5f7fa;
  --brand: #0d5c63;
  --accent: #b23a48;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  color: var(--ink);
  background: var(--surface);
}

a {
  color: var(--brand);
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.nav {
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-weight: 800;
  color: var(--brand);
  text-decoration: none;
  font-size: 20px;
}

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

.nav-links a {
  color: var(--ink);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--brand);
}

main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.hero {
  display: grid;
  gap: 18px;
  padding: 36px 0 28px;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(34px, 6vw, 56px);
  letter-spacing: 0;
}

h2 {
  margin-top: 34px;
  font-size: 26px;
}

h3 {
  margin-top: 24px;
  font-size: 20px;
}

p {
  margin: 0 0 16px;
}

.lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 760px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 6px;
  background: var(--brand);
  color: white;
  text-decoration: none;
  font-weight: 700;
}

.button.secondary {
  background: var(--paper);
  color: var(--brand);
  border: 1px solid var(--brand);
}

.notice {
  border-left: 4px solid var(--accent);
  padding: 14px 16px;
  background: var(--paper);
  margin: 24px 0;
}

.policy {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
}

ul {
  padding-left: 22px;
}

li {
  margin: 8px 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 22px 24px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding-top: 28px;
  }

  .policy {
    padding: 20px;
  }
}