:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.navbar { background: rgba(30, 41, 59, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.nav-container { display: flex; justify-content: space-between; align-items: center; height: 68px; }
.logo { font-size: 1.25rem; font-weight: 700; display: flex; align-items: center; gap: 8px; color: #fff; }
.pulse-dot { width: 10px; height: 10px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 10px #22c55e; }
.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: #fff; }

.hero { text-align: center; padding: 80px 0 60px; max-width: 780px; margin: 0 auto; }
.hero h1 { font-size: 2.75rem; font-weight: 800; line-height: 1.2; margin-bottom: 20px; background: linear-gradient(135deg, #fff 40%, #93c5fd); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.lead { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; }
.btn { padding: 12px 24px; border-radius: 8px; font-weight: 600; text-decoration: none; transition: 0.2s; display: inline-block; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #2d3748; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin: 40px 0 80px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px; transition: transform 0.2s; }
.card:hover { transform: translateY(-3px); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.25rem; margin-bottom: 12px; color: #fff; }
.card p { color: var(--text-muted); font-size: 0.95rem; }

footer { margin-top: auto; border-top: 1px solid var(--border); background: #0c1222; padding: 32px 0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; font-size: 0.875rem; color: var(--text-muted); flex-wrap: gap: 16px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-muted); text-decoration: none; }
.footer-links a:hover { color: #fff; }

.page-content { padding: 60px 0; max-width: 800px; }
.page-content h1 { font-size: 2.2rem; margin-bottom: 24px; }
.page-content p { margin-bottom: 18px; color: var(--text-muted); font-size: 1.05rem; }
.page-content h2 { margin: 32px 0 16px; font-size: 1.5rem; color: #fff; }