@layer base {
    html, body { margin: 0; padding: 0; scroll-behavior: smooth; }
  }
  ::-webkit-scrollbar { display: none; }
  .cyber-grid {
    background-image: linear-gradient(rgba(0, 242, 254, 0.05) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(0, 242, 254, 0.05) 1px, transparent 1px);
    background-size: 36px 36px;
  }
  .neon-border-cyan { box-shadow: 0 0 20px rgba(0, 242, 254, 0.25); }
  .neon-border-purple { box-shadow: 0 0 20px rgba(127, 0, 255, 0.25); }