:root {
  --bg: #ffffff;
  --fg: #11181C;
  --muted: #687076;
  --primary: #2563EB;
  --surface: #f8f9fa;
  --border: #e5e7eb;
  --accent: #0a7ea4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151718;
    --fg: #ECEDEE;
    --muted: #9BA1A6;
    --primary: #60a5fa;
    --surface: #1e2022;
    --border: #334155;
    --accent: #38bdf8;
  }
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.back-link {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.subtitle {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.effective-date {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin-top: 48px;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 17px;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 16px;
  color: var(--fg);
}

blockquote {
  background: var(--surface);
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 8px 8px 0;
  font-size: 15px;
}

blockquote p {
  margin-bottom: 0;
}

blockquote strong {
  color: var(--fg);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

thead {
  background: var(--surface);
}

th {
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

tr:last-child td {
  border-bottom: none;
}

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

a:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

.footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* Landing page styles */
.hero {
  text-align: center;
  padding: 80px 24px 48px;
}

.hero-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, #2563EB, #0a7ea4);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-icon svg {
  width: 44px;
  height: 44px;
  fill: white;
}

.hero h1 {
  font-size: 36px;
  margin-bottom: 12px;
}

.hero p {
  color: var(--muted);
  font-size: 18px;
  max-width: 480px;
  margin: 0 auto;
}

.cards {
  display: flex;
  gap: 20px;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.card {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  text-decoration: none;
  color: var(--fg);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  text-decoration: none;
}

.card h2 {
  font-size: 20px;
  margin-top: 0;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.card .arrow {
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}

@media (max-width: 600px) {
  .cards {
    flex-direction: column;
  }
  .hero {
    padding: 48px 24px 32px;
  }
  .hero h1 {
    font-size: 28px;
  }
}