:root {
  --bg: #f5f7fa;
  --text: #2c2f32;
  --muted: #595c5e;
  --accent: #4555a8;
  --card: #ffffff;
  --border: #dfe3e7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101318;
    --text: #e8eaed;
    --muted: #9aa3ae;
    --accent: #9daaf2;
    --card: #1c2129;
    --border: #2e343e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
.site-nav {
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.site-nav a {
  color: var(--accent);
  text-decoration: none;
  margin-right: 1rem;
}
.site-nav a:hover { text-decoration: underline; }
.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
.wrap.wide { max-width: 44rem; }
.card {
  background: var(--card);
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}
.summary {
  background: var(--bg);
  padding: 1rem 1rem;
  border-radius: 8px;
  border-left: 4px solid var(--accent);
  margin: 1rem 0 1.5rem;
}
h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.75rem;
  color: var(--accent);
}
h2:first-of-type { margin-top: 1.25rem; }
h3 {
  font-size: 1rem;
  margin: 1.25rem 0 0.5rem;
}
p { margin: 0.75rem 0; }
ul { margin: 0.5rem 0 0.75rem; padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
strong { font-weight: 600; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0.75rem 0;
}
th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
}
th { background: var(--bg); }
.disclaimer {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
a { color: var(--accent); }
.hero {
  text-align: center;
  padding: 2rem 0 1rem;
}
.hero h1 { font-size: 2rem; }
.hero .tagline {
  color: var(--muted);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}
.link-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}
.link-card {
  display: block;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border-radius: 12px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 12px rgba(0,0,0,.04);
  transition: border-color 0.15s;
}
.link-card:hover {
  border-color: var(--accent);
}
.link-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  color: var(--accent);
}
.link-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}
.cta-mail {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.65rem 1.25rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}
.cta-mail:hover { opacity: 0.92; }