:root {
  --bg: #09090b;
  --surface: #18181b;
  --border: #27272a;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --accent: #fafafa;
  --accent-fg: #09090b;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
  max-width: 900px;
  margin: 0 auto;
}

.logo { font-weight: 600; font-size: 1.1rem; letter-spacing: -0.02em; }

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  margin-left: 1.5rem;
  font-size: 0.9rem;
  transition: color 0.2s;
}
nav a:hover { color: var(--text-primary); }

main { max-width: 700px; margin: 4rem auto; padding: 0 1.5rem; }

.hero { text-align: center; margin-bottom: 5rem; }
.hero h1 { font-size: 3.5rem; font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 1.5rem; }
.accent { color: var(--text-secondary); }
.subtitle { font-size: 1.15rem; color: var(--text-secondary); max-width: 500px; margin: 0 auto 2.5rem; }

.cta-group { display: flex; gap: 1rem; justify-content: center; }
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}
.btn.primary { background: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { opacity: 0.9; }
.btn.secondary { background: var(--surface); color: var(--text-primary); border: 1px solid var(--border); }
.btn.secondary:hover { border-color: var(--text-secondary); }

.install-section h2 { font-size: 1.5rem; margin-bottom: 1.5rem; font-weight: 500; }

.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.2s;
}
.copy-btn:hover { background: var(--border); color: var(--text-primary); }

pre { padding: 1rem; overflow-x: auto; }
code { font-family: 'Menlo', 'Monaco', monospace; font-size: 0.85rem; color: var(--text-primary); }

footer {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}