:root {
  --bg: #0b0b0f;
  --card: #14141a;
  --text: #e8e8ed;
  --muted: #9a9aa8;
  --accent: #6366f1;
  --border: #2a2a35;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
header {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  background: rgba(11,11,15,0.9);
  backdrop-filter: blur(8px);
  z-index: 10;
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo { font-weight: 700; font-size: 1.25rem; color: var(--text); }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { color: var(--muted); font-size: 0.95rem; }
.nav-links a:hover, .nav-links a.active { color: var(--text); text-decoration: none; }
.hero {
  padding: 100px 0 80px;
  text-align: center;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero p {
  color: var(--muted);
  font-size: 1.2rem;
  max-width: 520px;
  margin: 0 auto 36px;
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 500;
  transition: opacity 0.2s;
}
.btn:hover { opacity: 0.9; text-decoration: none; }
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  padding: 40px 0 80px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}
.card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.card p { color: var(--muted); font-size: 0.95rem; }
.section { padding: 60px 0; }
.section h2 { font-size: 1.8rem; margin-bottom: 16px; }
.section p { color: var(--muted); max-width: 640px; }
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}
.footer-links { margin-top: 12px; display: flex; gap: 20px; justify-content: center; }
@media (max-width: 640px) {
  .hero h1 { font-size: 2.2rem; }
  .nav-links { gap: 16px; }
}