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

:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #162033;
  background: #edf1f6;
  font-synthesis: none;
}

html, body, #root { min-height: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 72% -10%, rgba(90, 130, 255, 0.13), transparent 30rem),
    #edf1f6;
}

* { box-sizing: border-box; }

button, input, select, textarea { font: inherit; }

::selection { background: #c8d7ff; color: #14234b; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #c8d0dd; border: 3px solid transparent; border-radius: 999px; background-clip: padding-box; }
::-webkit-scrollbar-track { background: transparent; }

@keyframes trace-flow {
  from { transform: translateX(-150%); }
  to { transform: translateX(350%); }
}

.trace-edge {
  position: relative;
  width: 2.75rem;
  height: 2px;
  flex: 0 0 2.75rem;
  overflow: hidden;
  border-radius: 999px;
  background: #cbd5e1;
}

.trace-edge-active {
  background: #93c5fd;
}

.trace-edge-active::after {
  position: absolute;
  inset-block: 0;
  left: 0;
  width: 35%;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, #2563eb, transparent);
  content: "";
  animation: trace-flow 1.2s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .trace-edge-active::after { animation: none; }
}