body {
  margin: 0;
  background: #000;
  color: #00ff6a;
  font-family: "Courier New", monospace;
  display: grid;
  place-items: center;
  height: 100vh;
}

/* Simple container */
#screen {
  width: clamp(280px, 80vw, 1000px);
  height: clamp(280px, 80vh, 600px);
  border: 4px solid #0f3;
  padding: 18px 22px;
  background: #001200;
  overflow-y: auto;
  box-shadow: 0 0 20px rgba(0, 255, 100, 0.3);
}

#terminal {
  white-space: pre-wrap;
  margin: 0;
  line-height: 1.35rem;
  font-size: 1.07rem;
  text-shadow: 0 0 6px rgba(51,255,51,.5);
}