@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
  color-scheme: dark;
}

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

body {
  background-color: #0f1117;
  color: #e8eaf0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: #1a1d27;
}

::-webkit-scrollbar-thumb {
  background: #2e3147;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3e4160;
}

@keyframes led-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.led-pulse { animation: led-pulse 1.4s ease-in-out infinite; }

@keyframes cell-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.5); }
  50% { box-shadow: 0 0 0 4px rgba(99, 102, 241, 0); }
}
.cell-ring { animation: cell-ring 1.4s ease-in-out infinite; }

@keyframes caret-blink { 50% { opacity: 0; } }
.caret-blink { animation: caret-blink 1s step-end infinite; }

@media (prefers-reduced-motion: reduce) {
  .led-pulse, .cell-ring, .caret-blink { animation: none; }
}