:root{--background:#fff;--foreground:#171717;--input-bg:#fff;--input-border:#d1d5db;--render-bg:#fff;--muted:#6b7280;--success:#166534;--danger:#b91c1c}@media (prefers-color-scheme:dark){:root{--background:#0a0a0a;--foreground:#ededed;--input-bg:#1f2937;--input-border:#374151;--render-bg:#111827;--muted:#9ca3af;--success:#86efac;--danger:#fca5a5}}*{box-sizing:border-box}html,body{background:var(--background);min-height:100%;color:var(--foreground);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:Arial,Helvetica,sans-serif}body{min-height:100vh;overflow:hidden}a{color:inherit}button,input,textarea{font:inherit}.app{background:var(--background);flex-direction:column;height:100vh;display:flex}.toolbar{border-bottom:1px solid var(--input-border);background:var(--background);justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;display:flex}.toolbar-title{font-size:14px;font-weight:600}.toolbar-actions{flex-wrap:wrap;align-items:center;gap:8px;margin:0;display:flex}.toolbar-side{flex-direction:column;align-items:flex-end;gap:6px;display:flex}.button{border:1px solid var(--input-border);background:var(--input-bg);color:var(--foreground);cursor:pointer;padding:8px 12px}.button-sm{padding:4px 8px;font-size:12px;line-height:1.2}.button:disabled{cursor:not-allowed;opacity:.7}.button.secondary{background:0 0}.workspace{flex-direction:column;flex:1;min-height:0;display:flex}.editor-wrap{flex:0 0 30vh;min-height:0;overflow:hidden}.editor{border:1px solid var(--input-border);background:var(--input-bg);width:100%;height:100%;min-height:30vh;color:var(--foreground);resize:none;border-top:none;border-left:none;border-right:none;outline:none;padding:8px;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:14px;line-height:1.5}.preview-wrap{border-top:1px solid var(--input-border);background:var(--render-bg);flex:auto;min-height:0;padding:16px;display:flex;overflow:auto}.preview-frame{background:#fff;border:0;flex:1;width:100%;min-width:0;height:100%;min-height:100%;display:block}.auth-panel{border-top:1px solid var(--input-border);gap:12px;padding:12px;display:grid}.muted{color:var(--muted);font-size:14px}.checkbox{align-items:center;gap:8px;font-size:14px;display:inline-flex}.inline-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.toolbar-status{color:var(--muted);font-size:14px}.toolbar-status.error{color:var(--danger)}.toolbar-result{flex-wrap:wrap;justify-content:flex-end;gap:8px;max-width:100%;display:flex}.result-value{word-break:break-all;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:13px}.field{gap:6px;display:grid}.field input{border:1px solid var(--input-border);background:var(--input-bg);width:100%;color:var(--foreground);padding:8px}.auth-shell{max-width:640px;margin:24px auto;padding:0 12px}.simple-stack{gap:12px;display:grid}.simple-title{font-size:18px;font-weight:600}.simple-text{color:var(--muted);font-size:14px;line-height:1.5}@media (max-width:640px){.toolbar{flex-direction:column;align-items:flex-start}.toolbar-actions{width:100%}.toolbar-side{align-items:flex-start;width:100%}.toolbar-result{justify-content:flex-start}}