:root{color-scheme:dark}body{margin:0;background:#000;color:#ccc;font-family:system-ui,sans-serif}.app-shell{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem}.screen{min-height:100vh;box-sizing:border-box;padding:1.5rem;display:flex;flex-direction:column;gap:.75rem}.flight-mode{background:#000;color:#333;align-items:center;justify-content:center;position:relative}.flight-mode .exit-corner{position:absolute;top:0;left:0;width:48px;height:48px}.tiny-status{font-size:.75rem;color:#222}button{padding:.75rem 1rem;font-size:1rem}