:root{color-scheme:light;--bg:#f7f7f8;--sidebar:#f1f2f4;--surface:#fff;--surface-muted:#f0f1f3;--surface-hover:#e8e9ed;--text:#1b1b1d;--subtle:#777980;--border:#e8e8eb;--accent:#2788e8;--accent-strong:#1675d1;--accent-contrast:#fff;--user-bubble:#eaf3ff;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;font-synthesis:none;-webkit-font-smoothing:antialiased}
html[data-theme=dark]{color-scheme:dark;--bg:#0b0b0d;--sidebar:#111113;--surface:#1c1c1f;--surface-muted:#222225;--surface-hover:#29292e;--text:#f4f4f6;--subtle:#a1a1a8;--border:#2a2a2f;--accent:#4b9cff;--accent-strong:#72b1ff;--accent-contrast:#07111f;--user-bubble:#10194f}
*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--bg);color:var(--text)}#app{position:fixed;inset:0;overflow:hidden;background:var(--bg)}.boot{height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:var(--bg);color:var(--subtle);font-size:14px}.boot-mark{width:68px;height:68px;object-fit:cover;border-radius:20px}.shell{height:100dvh;min-height:0;overflow:hidden;background:var(--bg)}.auth-pending{pointer-events:none;user-select:none}