.sparrow-startup{position:fixed;inset:0;z-index:10000;display:grid;place-items:center;background:var(--paper);color:var(--ink);padding:20px;transition:opacity .18s ease;font-family:var(--ui-font)}.sparrow-startup-inner{width:min(640px,100%);text-align:center}.sparrow-startup svg{display:block;width:100%;max-height:65dvh;height:auto;pointer-events:none}.sparrow-startup h1{font-size:28px;font-weight:normal}.sparrow-startup p{font-size:14px;color:var(--muted);margin:12px 0;min-height:21px}.sparrow-startup button{font:inherit;font-size:14px;padding:8px 18px;color:var(--ink);background:transparent;border:1px solid var(--line);border-radius:4px;cursor:pointer}.sparrow-startup button:focus-visible{outline:2px solid var(--ink);outline-offset:3px}.sparrow-startup button:disabled{opacity:.5;cursor:default}.sparrow-startup.leaving{opacity:0;pointer-events:none}.sparrow-startup[hidden]{display:none}.sparrow-startup.skipped #sparrowArtwork{display:none}@media(prefers-reduced-motion:reduce){.sparrow-startup{transition:none}.sparrow-startup .motion{display:none}.sparrow-startup .still{display:inline!important}}@media(max-width:600px){.sparrow-startup{padding:12px}.sparrow-startup svg{max-height:60dvh}}

/* Keep the stage fixed while only the bird and chirp notes move. */
#sparrowArtwork{width:100%;aspect-ratio:640 / 420}#sparrowArtwork svg{width:100%;height:100%;max-height:none;overflow:hidden;stroke:none}