* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #05070a;
  color: #e8eefc;
  font-family: Arial, sans-serif;
}

canvas {
  display: block;
}

#info {
  width: min(40vw, 280px);
  position: fixed;
  bottom: 5px;
  left: 5px;
  z-index: 10;
  pointer-events: none;
  background: rgba(0, 0, 0, 0.4);
  padding: 8px 8px;
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 4px;
  backdrop-filter: blur(8px);
  color: #00e5ff;
  font-family: 'Courier New', monospace;
  line-height: 0.8;
}

#info h1 {
  margin: 0 0 3px;
  font-size: min(2.2vw, 17px);
  font-weight: bold;
  text-shadow: 1px 1px 2px #000;
}

#info p {
  margin: 0;
  font-size: min(1.8vw, 14px);
  opacity: 0.9;
  text-shadow: 1px 1px 2px #000;
}

/* style.css に追加 */
#credits {
  position: fixed;
  bottom: 5px;
  right: 3px;
  background: rgba(0, 0, 0, 0.5);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: min(2.0vw, 16px);
  color: #ccc;
  backdrop-filter: blur(4px);
  pointer-events: auto;
}

#credits a {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px dotted #fff;
}