:root {
  color-scheme: light;
  --background: #f7f8f4;
  --surface: #ffffff;
  --ink: #18201c;
  --muted: #667069;
  --line: #dfe5dc;
  --accent: #245f4a;
  --accent-strong: #174434;
  --max-width: 860px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-strong);
}

.site-header,
.site-footer {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
}

.brand {
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--ink);
}

.site-main {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 72px 0 64px;
}

.hero h1,
.page h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.75rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.18rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 650;
  text-decoration: none;
}

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

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

.button.secondary:hover {
  border-color: var(--accent-strong);
  color: var(--accent-strong);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.summary-item {
  min-height: 150px;
  padding: 24px;
  background: var(--surface);
}

.summary-item h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  line-height: 1.3;
}

.summary-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.page {
  max-width: 760px;
  padding: 48px 0 72px;
}

.page h1 {
  margin-bottom: 12px;
}

.page .effective-date {
  margin: 0 0 36px;
  color: var(--muted);
  font-size: 1rem;
}

.page h2 {
  margin: 42px 0 12px;
  font-size: 1.35rem;
  line-height: 1.25;
}

.page p,
.page li {
  color: #323b35;
}

.page ul {
  padding-left: 1.35rem;
}

.page code {
  padding: 0.12em 0.32em;
  border-radius: 4px;
  background: #e9efe7;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.site-footer {
  padding: 36px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    padding: 44px 0 48px;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .summary-item {
    min-height: auto;
  }
}