:root {
  --bg-color: #121212;
  --card-bg: #1e1e1e;
  --primary: #8a5cf6;
  --primary-hover: #a17cfb;
  --secondary-bg: #2a2a2a;
  --text-color: #e6e6e6;
  --muted: #b8b8b8;
  --heading-color: #ffffff;
  --border-color: #333;
  --radius: 6px;
  --max-width: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
h1, h2, h3, h4 { color: var(--heading-color); font-weight: 600; line-height: 1.2; }
p { margin-bottom: 1rem; }

header {
  background: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
}
.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.cbi-brand { display: flex; align-items: center; flex-shrink: 0; }
.footer-logo { width: 44px; height: 44px; object-fit: contain; display: block; }
.logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--heading-color);
  font-size: 1.3rem;
  font-weight: 600;
  margin-right: auto;
}
.logo:hover { color: var(--heading-color); }
.main-nav > ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.main-nav a {
  color: var(--text-color);
  font-weight: 500;
  padding: .5rem;
  border-radius: var(--radius);
  white-space: nowrap;
}
.main-nav a:hover { background: var(--secondary-bg); color: var(--text-color); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 1.6rem;
  cursor: pointer;
}

main { flex: 1; min-height: 70vh; }
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 3rem;
  align-items: center;
}
.hero h1, .page-hero h1 {
  font-size: clamp(2.3rem, 6vw, 4.6rem);
  line-height: 1.04;
  margin: .25rem 0 1rem;
}
.lead { font-size: 1.2rem; color: var(--muted); max-width: 760px; }
.hero-icon { width: 100%; filter: invert(1); opacity: .9; }
.eyebrow { font-size: .8rem; letter-spacing: .15em; font-weight: 800; color: var(--primary); }
.btn {
  display: inline-block;
  border: 1px solid var(--border-color);
  padding: .7rem 1rem;
  border-radius: var(--radius);
  margin: .25rem .4rem .25rem 0;
}
.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn.primary:hover { background: var(--primary-hover); color: #fff; }
.cards, .feature-list {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}
.cards article, .feature-list article {
  background: var(--card-bg);
  padding: 1.4rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}
.cards h2, .feature-list h2 { margin-bottom: .75rem; }
.content, .page-hero { max-width: var(--max-width); margin: 0 auto; padding: 2.5rem 1.5rem; }
.page-hero { text-align: center; }
.content { max-width: 900px; }
.content h2 { margin: 2rem 0 .5rem; }
.faq h2 { margin-bottom: .35rem; }
pre {
  overflow: auto;
  background: #0b0b0b;
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }

footer {
  margin-top: auto;
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  color: var(--muted);
}
.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.footer-brand { display: flex; align-items: center; gap: 1rem; }
.footer-brand p { margin: 0; }
.footer-nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.footer-nav a { color: var(--text-color); font-size: .9rem; white-space: nowrap; }
.footer-nav a:hover { color: var(--primary); }

@media (max-width: 760px) {
  .header-container { flex-wrap: wrap; }
  .nav-toggle { display: block; }
  .main-nav { display: none; width: 100%; }
  .main-nav.open { display: block; }
  .main-nav > ul { flex-direction: column; align-items: flex-start; gap: .25rem; padding-top: .5rem; }
  .hero { grid-template-columns: 1fr; padding-top: 3rem; }
  .hero-icon { display: none; }
  .footer-container, .footer-brand { align-items: flex-start; }
  .footer-brand { width: 100%; }
}