:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --surface: #ffffff;
  --text: #202124;
  --muted: #5f6368;
  --border: #d8d8d0;
  --accent: #176b5d;
  --accent-dark: #0d4f44;
  --focus: #8b5cf6;
}

* {
  box-sizing: border-box;
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--surface);
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
}

.skip-link:focus {
  top: 1rem;
}

.site-header,
footer {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

footer {
  border-bottom: 0;
  border-top: 1px solid var(--border);
  padding: 1.5rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem;
}

main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

.hero,
.notice,
article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.hero {
  padding: 2rem;
}

.eyebrow {
  color: var(--accent-dark);
  font-weight: 700;
  margin: 0 0 0.75rem;
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  max-width: 48rem;
  font-size: clamp(2rem, 6vw, 4rem);
  margin: 0;
}

.lead {
  max-width: 44rem;
  color: var(--muted);
  font-size: 1.2rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
}

.button.secondary {
  background: var(--surface);
  color: var(--accent-dark);
}

.button.disabled {
  border-color: var(--border);
  background: #e8e8e2;
  color: var(--muted);
  cursor: not-allowed;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

article,
.notice {
  padding: 1.25rem;
}

.notice {
  margin-top: 1rem;
}

.safety {
  border-color: #b65d2f;
}

@media (max-width: 42rem) {
  .hero {
    padding: 1.25rem;
  }

  nav {
    gap: 0.75rem;
  }
}