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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f1117; color: #e2e8f0;
  min-height: 100vh; display: flex; flex-direction: column;
}

header {
  padding: 1.2rem 2rem; border-bottom: 1px solid #1e2535;
  display: flex; align-items: center;
}
header .logo { font-size: 1.1rem; font-weight: 700; color: #60a5fa; }
header nav { margin-left: auto; display: flex; gap: 1.5rem; }
header nav a { color: #94a3b8; text-decoration: none; font-size: 0.9rem; }
header nav a:hover { color: #e2e8f0; }

main {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 4rem 2rem; text-align: center;
}

.badge {
  display: inline-block; background: #1e3a5f; color: #60a5fa;
  font-size: 0.75rem; font-weight: 600; padding: 0.3rem 0.8rem;
  border-radius: 999px; letter-spacing: 0.05em;
  text-transform: uppercase; margin-bottom: 1.5rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -1px; margin-bottom: 1.2rem;
}
h1 span { color: #60a5fa; }

p.sub {
  color: #64748b; font-size: 1.1rem;
  max-width: 480px; line-height: 1.7; margin-bottom: 2.5rem;
}

.buttons { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.btn {
  padding: 0.75rem 1.6rem; border-radius: 8px;
  font-size: 0.95rem; font-weight: 600;
  text-decoration: none; transition: opacity .15s;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: #2563eb; color: #fff; }
.btn-outline { background: transparent; color: #94a3b8; border: 1px solid #2d3748; }

.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem; max-width: 800px; width: 100%; margin-top: 4rem;
}
.feature {
  background: #161b27; border: 1px solid #1e2535;
  border-radius: 12px; padding: 1.4rem; text-align: left;
}
.feature .icon { font-size: 1.5rem; margin-bottom: 0.6rem; }
.feature h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.3rem; }
.feature p { font-size: 0.82rem; color: #64748b; line-height: 1.5; }

footer {
  padding: 1.5rem 2rem; border-top: 1px solid #1e2535;
  text-align: center; color: #334155; font-size: 0.8rem;
}