html,body.studio-shell{width:100%;height:100%;margin:0;padding:0;overflow:hidden;background:var(--canvas,#f5f5f7);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink,#1d1d1f)}
#studioFrameHost{position:fixed;inset:0;margin:0;padding:0;width:100%;height:100dvh;max-width:none;overflow:hidden}
#studioWorkspace{display:block;width:100%;height:100%;border:0;background:var(--canvas,#f5f5f7);color-scheme:normal}
.shell-toast{position:fixed;z-index:6000;bottom:max(28px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:max-content;max-width:min(560px,calc(100% - 36px));padding:15px 22px;border:1px solid var(--line);border-radius:18px;background:var(--paper);color:var(--ink);box-shadow:0 12px 50px #17233320;font-size:13px;line-height:1.5}
.shell-toast[data-kind=error]{border-color:#c7474738;color:var(--danger,#b4232d)}
.shell-toast[hidden],.studio-release[hidden]{display:none!important}
.studio-release{position:fixed;z-index:4500;right:26px;bottom:max(24px,env(safe-area-inset-bottom));display:grid;grid-template-columns:38px 1fr;gap:14px;width:min(420px,calc(100% - 32px));padding:20px;border:1px solid var(--line);border-radius:24px;background:var(--paper);color:var(--ink);box-shadow:0 20px 70px #17233324;animation:release-in .25s ease-out}
.studio-release img{width:38px;height:38px;border-radius:11px}.studio-release h2{font-size:16px;letter-spacing:-.4px;margin:0 22px 6px 0}.studio-release p{font-size:12px;line-height:1.6;color:var(--muted);margin:0}.release-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.studio-release button{font:600 12px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:40px;border-radius:12px;padding:10px 14px;border:1px solid var(--line);background:var(--surface-soft);color:var(--ink);cursor:pointer}.studio-release .release-primary{background:var(--brand-blue);border-color:transparent;color:#fff}.studio-release .release-close{position:absolute;top:12px;right:13px;padding:0;min-height:28px;width:28px;border:0;background:transparent;color:var(--muted);font-size:22px}
.studio-release .release-note{font-size:11px;margin-top:12px}.release-secondary-link{color:var(--brand-link);text-decoration:none;font-size:11px;align-self:center;padding:8px 0}
.studio-check-updates{margin:8px 12px 0;padding:6px 0;border:0;background:none;color:var(--muted);font:500 10px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;cursor:pointer;text-align:left}.studio-check-updates:hover{color:var(--ink)}
@keyframes release-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:600px){.studio-release{right:16px;bottom:max(16px,env(safe-area-inset-bottom));padding:18px;gap:12px}.release-actions>*{flex:1}.shell-toast{bottom:max(20px,env(safe-area-inset-bottom));font-size:12px}}
@media(prefers-reduced-motion:reduce){.studio-release{animation:none}}