*{margin:0;padding:0;box-sizing:border-box}body{overflow:hidden;font-family:Arial,sans-serif;background:#1a1a1a}#scene-container{position:fixed;width:100%;height:100%}.info-overlay{position:fixed;top:20px;left:20px;color:#fff;background:#000000b3;padding:20px;border-radius:10px;pointer-events:none}.info-overlay h1{font-size:24px;margin-bottom:10px}.info-overlay p{font-size:16px;opacity:.8}.controls-hint{position:fixed;bottom:20px;left:50%;transform:translate(-50%);color:#fff;background:#000000b3;padding:10px 20px;border-radius:20px;pointer-events:none}.loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000e6;display:flex;justify-content:center;align-items:center;color:#fff;font-size:24px;z-index:1000}