html,body{color:#f3f4f6;background:#111318;height:100%;margin:0;font:14px system-ui}main{flex-direction:column;height:100%;display:flex}canvas{object-fit:contain;background:#000;flex:1;width:100%;min-height:0}footer{background:#20242d;align-items:center;gap:16px;padding:14px;display:flex}#status{flex:1}button{color:#fff;cursor:pointer;background:#487cff;border:0;border-radius:6px;padding:8px 12px}button:disabled{opacity:.5;cursor:default}