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

html,
body {
  width: 100%;
  height: 100%;
}

body {
  background: black;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow: hidden;
}

#matrix-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.overlay-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #00ff7f;
  text-shadow: 0 0 6px rgba(0, 255, 127, 0.8);
  max-width: 90vw;
}

.overlay-text .code {
  display: block;
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.overlay-text .message {
  display: block;
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
}

@media (prefers-reduced-motion: reduce) {
  #matrix-canvas {
    display: none;
  }

  body {
    background: radial-gradient(circle at center, #001b0b 0, #000 60%);
  }
}