:root {
  --bg: #ffffff;
  --fg: #11181C;
  --muted: #687076;
  --border: #E5E7EB;
  --accent: #22C55E;
  --accent-fg: #ffffff;
  --max: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0c0e;
    --fg: #ECEDEE;
    --muted: #9BA1A6;
    --border: #1f2226;
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

header .brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

header .brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

header nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  margin-left: 20px;
}

header nav a:hover {
  color: var(--fg);
}

h1 {
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  font-weight: 700;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  margin: 40px 0 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 17px;
  margin: 24px 0 8px;
  font-weight: 600;
}

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

.muted {
  color: var(--muted);
}

ul {
  padding-left: 20px;
}

li + li {
  margin-top: 6px;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}

th, td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 10px 8px;
  vertical-align: top;
}

th {
  font-weight: 600;
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

.effective {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  margin-top: 16px;
}

.hero {
  padding: 32px 0 24px;
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
}

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

footer a {
  color: var(--muted);
}