:root {
  --bg: #0d1117;
  --bg-secondary: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --badge-bg: #21262d;
  --badge-curve: #238636;
  --badge-bitcoin: #f7931a;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.tagline {
  color: var(--text-muted);
  font-size: 1.1rem;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

section {
  margin-bottom: 3rem;
}

.intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 2rem;
}

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

.intro a:hover {
  text-decoration: underline;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.package-card {
  display: block;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
}

.package-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.package-card h3 {
  color: var(--accent);
  font-size: 1rem;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  margin-bottom: 0.5rem;
}

.package-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: var(--badge-bg);
  color: var(--text-muted);
}

.badge.curve {
  background: var(--badge-curve);
  color: white;
}

.badge.bitcoin {
  background: var(--badge-bitcoin);
  color: white;
}

.install pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
}

.install code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.9rem;
  color: var(--text);
}

.links ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
}

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

.links a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 2rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }

  .package-grid {
    grid-template-columns: 1fr;
  }

  .links ul {
    flex-direction: column;
    gap: 0.75rem;
  }
}