*{margin:0;padding:0;box-sizing:border-box}body{overflow:hidden;min-height:100vh;font-family:var(--font-sans)}#app{position:relative;width:100vw;height:100vh}.engine-loading-overlay{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;pointer-events:none}.engine-loading-spinner{width:40px;height:40px;border:3px solid color-mix(in srgb,currentColor 25%,transparent);border-top-color:currentColor;border-radius:50%;animation:engine-loading-spin .8s linear infinite}@keyframes engine-loading-spin{to{transform:rotate(360deg)}}