:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --border: #e3e8f0;
  --text: #1f2733;
  --muted: #64748b;
  --accent: #4f7cff;
  --heading: #1e293b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a2238;
    --card: #212a44;
    --border: #333d5c;
    --text: #e7ebf5;
    --muted: #9aa4c4;
    --accent: #ff6b2d;
    --heading: #ffffff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header.hero {
  text-align: center;
  margin-bottom: 40px;
}

header.hero img {
  width: 72px;
  height: 72px;
  border-radius: 16px;
}

h1 {
  color: var(--heading);
  font-size: 1.75rem;
  margin: 16px 0 8px;
}

h2 {
  color: var(--heading);
  font-size: 1.25rem;
  margin-top: 2em;
}

p.tagline {
  color: var(--muted);
  margin: 0;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
}

.cta:hover {
  opacity: 0.9;
}

.links {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
}

ul {
  padding-left: 1.2em;
}

footer {
  text-align: center;
  margin-top: 56px;
  color: var(--muted);
  font-size: 0.9rem;
}

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