:root {
  --paper: #f7f3ec;
  --ink: #1c1c1c;
  --muted: #5a5a5a;
  --rule: #e5e0d6;
  --accent: #2a4a7f;
  --accent-soft: #dde4f0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1c1c1c;
    --ink: #f7f3ec;
    --muted: #a8a8a8;
    --rule: #333;
    --accent: #8aaee0;
    --accent-soft: #2a3340;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
}

p, ul {
  margin: 0 0 1rem;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.25rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.9em;
  background: var(--rule);
  padding: 0.1em 0.35em;
  border-radius: 0.25em;
}

.hero {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.hero img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.hero h1 {
  margin: 0;
}

.tagline {
  color: var(--muted);
  font-size: 1.05rem;
  margin-top: 0.25rem;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.card {
  padding: 1rem 1.2rem;
  border: 1px solid var(--rule);
  border-radius: 0.6rem;
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
}

footer a {
  margin-right: 1rem;
}