html,body{margin:0;padding:0;width:100%;height:100%;min-height:-webkit-fill-available;overflow:hidden;background-color:#922b21;display:flex;justify-content:center;align-items:center;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;touch-action:none}main{display:flex;justify-content:center;align-items:center}canvas{display:block;box-shadow:0 10px 30px #00000080;border-radius:8px}#start-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000bf;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:none;justify-content:center;align-items:center;z-index:99999;cursor:pointer;color:#fff;text-align:center;touch-action:none}.overlay-content{animation:fadeIn .5s ease-out}.bus-icon{font-size:5rem;margin-bottom:1rem;animation:bounce 2s infinite}#start-overlay h2{font-size:2.5rem;margin:0;letter-spacing:2px}.click-prompt{font-size:1.5rem;font-weight:700;margin-top:1rem;color:#e74c3c;animation:pulse 1.5s infinite}.controls-hint{font-size:1rem;margin-top:.5rem;opacity:.7}@keyframes fadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.8}to{transform:scale(1);opacity:1}}