html,body{margin:0;height:100%;background:#0b0d1f;overflow:hidden;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}
body{display:flex;align-items:center;justify-content:center}
canvas{display:block;touch-action:none;outline:none}
#rotate{position:fixed;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(11,13,31,.94);color:#fff;font:700 20px system-ui,sans-serif;text-align:center;z-index:5}
#rotate .ph{width:46px;height:78px;border:4px solid #fff;border-radius:10px;animation:rot 1.6s ease-in-out infinite}
@keyframes rot{0%,30%{transform:rotate(0)}60%,100%{transform:rotate(90deg)}}