:root {
  color-scheme: light;
  --bg: #f7f3ea;
  --paper: #fffaf0;
  --ink: #172033;
  --muted: #5b6475;
  --line: #ded6c8;
  --accent: #117a65;
  --accent-dark: #0b5345;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent-dark);
}

.shell {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 20px 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0 28px;
}

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

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

.nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.hero {
  border-top: 1px solid var(--line);
  padding: 44px 0 22px;
}

.eyebrow {
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 10px 0 14px;
  font-size: clamp(36px, 8vw, 72px);
  line-height: 0.98;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 19px;
}

.content {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-top: 26px;
  padding: 28px;
}

h2 {
  margin: 34px 0 10px;
  font-size: 24px;
}

h2:first-child {
  margin-top: 0;
}

p,
li {
  color: var(--muted);
}

ul {
  padding-left: 22px;
}

.notice {
  border-left: 4px solid var(--accent);
  margin: 24px 0;
  padding: 2px 0 2px 16px;
}

.footer {
  color: var(--muted);
  font-size: 14px;
  margin-top: 34px;
}

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

  .content {
    padding: 22px;
  }
}