/* style.css */

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  color: #333;
  overflow: hidden;
}

.hud {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  z-index: 100;
}

.title {
  margin: 0;
  font-size: 20px;
}

.subtitle {
  margin: 0;
  font-size: 14px;
  color: #ddd;
}

.stat {
  text-align: right;
  margin-bottom: 5px;
}

.value {
  font-weight: bold;
  margin-left: 5px;
}

.stage {
  width: 100vw;
  height: 100vh;
}

#webgl canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.95);
  padding: 20px 30px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  z-index: 200;
}

.hidden {
  display: none;
}

.card-title {
  margin: 0 0 10px;
}

.btn {
  background: #ffcc00;
  border: none;
  padding: 10px 20px;
  margin-top: 15px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 6px;
}

.btn:hover {
  background: #ffaa00;
}