:root { --bg: #000000; --text: #d5d9e0; --muted: #8b92a0; --accent: #32d46a; --card-bg: #111215; --border: #222; }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
    a { color: var(--accent); text-decoration: none; }
    a:hover { text-decoration: underline; }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 18px; }
    .nav { position: fixed; inset: 0 0 auto 0; height: 64px; display: flex; align-items: center; z-index: 30; background: #000000; }
    .nav .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
    .brand { font-weight: 800; letter-spacing: .04em; color: white; }
    .brand b { color: white; }
    .nav-links { display: flex; align-items: center; gap: 18px; }
    .nav a { color: #cbd5e1; }
    .btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border); background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(0,0,0,0)); color: var(--text); cursor: pointer; font-weight: 600; }
    .btn:hover { border-color: #234055; box-shadow: 0 0 0 1px #234055 inset; text-decoration: none; }
    .btn.primary { background: linear-gradient(180deg, rgba(50,212,106,.15), rgba(50,212,106,.05)); border-color: rgba(50,212,106,.35); }

    main { padding: 96px 0 64px; }
    
    .hero { text-align: center; margin-bottom: 64px; }
    .hero h1 { font-size: clamp(36px, 6vw, 56px); font-weight: 800; margin-bottom: 20px; line-height: 1.1; }
    .hero .sub { font-size: 20px; color: var(--muted); margin-bottom: 32px; max-width: 700px; margin-left: auto; margin-right: auto; }
    .hero .cta { display: inline-block; background: var(--accent); color: #000; padding: 16px 32px; border-radius: 8px; font-weight: 700; font-size: 18px; }
    .hero .cta:hover { background: #28c55f; text-decoration: none; }

    .features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-bottom: 64px; }
    .feature-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 32px; }
    .feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--accent); }
    .feature-card p { color: var(--muted); line-height: 1.7; }

    .highlight-box { background: rgba(50, 212, 106, 0.1); border: 1px solid var(--accent); border-radius: 12px; padding: 32px; margin: 48px 0; text-align: center; }
    .highlight-box h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; }
    .highlight-box p { font-size: 18px; color: var(--muted); margin-bottom: 24px; }

    footer { border-top: 1px solid var(--border); padding: 48px 0; margin-top: 64px; }
    footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; }
    footer a { color: var(--muted); font-size: 14px; margin-right: 16px; }

    @media (max-width: 768px) {
      .nav .wrap { flex-direction: column; gap: 12px; }
      .nav-links { flex-direction: column; gap: 12px; }
      .features { grid-template-columns: 1fr; }
    }