:root{--z-index-game: 1;--z-index-UI: 10;--towers-height: 50px;--standard-padding: 20px}*{margin:0;padding:0}html,body{overflow:hidden}.webgl{position:fixed;top:0;left:0;outline:none}.debug_drawcalls{position:absolute;z-index:100;top:0;left:0;font-size:14px}.ui{position:fixed;z-index:var(--z-index-UI);top:0;left:0;width:100%;height:100%;pointer-events:none}.ui .towers{position:absolute;bottom:10px;width:100%;height:var(--towers-height);text-align:center}.ui .towers button{border:1px solid grey;height:var(--towers-height);box-sizing:border-box;pointer-events:all}.ui button[data-selected=true]{border:4px solid white}.ui .towers button img{height:var(--towers-height)}.ui .economy{display:flex;gap:5px;position:fixed;top:0;left:0;right:0;width:50%;height:50px;margin:auto}.ui .economy .label{width:50px;height:50px;color:#fff;line-height:50px;text-align:center;background:#0003}.ui .popup{position:fixed;top:50%;left:50%;padding:var(--standard-padding);background-color:#fff;border-radius:8px;box-shadow:4px 4px 20px #00000026;pointer-events:all;transform:translate(-50%,-50%)}