:root {
  color-scheme: light dark;
  --bg: #0f1419;
  --fg: #e7ecf1;
  --muted: #9aa7b2;
  --accent: #3d9aed;
  --card: #1a222c;
  --border: #2a3542;
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.55;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fa;
    --fg: #1a1f26;
    --muted: #5c6b7a;
    --accent: #0969da;
    --card: #ffffff;
    --border: #d8dee4;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header {
  margin-bottom: 2rem;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0 0 0.35rem;
}

.tagline {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 0.75rem;
  font-weight: 600;
}

p {
  margin: 0 0 0.75rem;
}

p:last-child {
  margin-bottom: 0;
}

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

a:hover {
  text-decoration: underline;
}

pre,
.code {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
  font-size: 0.88rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  margin: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.btn {
  display: inline-block;
  padding: 0.45rem 0.95rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 0.95rem;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

@media (prefers-color-scheme: light) {
  .btn.primary {
    color: #fff;
  }
}

footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--muted);
}