:root{--bg:#f5f6fa;--panel:#fff;--panel-2:#f8f9fc;--text:#191b25;--muted:#6f7485;--border:#e3e5ed;--accent:#7057ff;--accent-soft:#eeeaff;--green:#18885d;--green-soft:#e9f8f1;--red:#d33b4d;--red-soft:#fff0f2;--shadow:0 10px 35px #191b250f}:root[data-theme=dark]{--bg:#0b0d12;--panel:#11141b;--panel-2:#171a22;--text:#eef0f6;--muted:#8e94a7;--border:#252936;--accent:#8a73ff;--accent-soft:#26213e;--green:#57d8a2;--green-soft:#142a23;--red:#ff7586;--red-soft:#321a20;--shadow:0 16px 45px #00000038}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select{font:inherit}button,a{color:inherit}button{cursor:pointer}.app-shell{flex-direction:column;min-height:100vh;display:flex}.topbar{background:var(--panel);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;height:58px;padding:0 18px;display:flex}.brand{letter-spacing:-.02em;align-items:center;gap:10px;font-weight:750;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#7057ff,#a35cff);border-radius:10px;place-items:center;width:32px;height:32px;display:grid;box-shadow:0 7px 18px #7057ff42}.privacy-pill{color:var(--green);background:var(--green-soft);border-radius:99px;padding:4px 8px;font-size:11px;font-weight:700}.top-actions{gap:6px;display:flex}.icon-button{border:1px solid var(--border);background:var(--panel);border-radius:9px;place-items:center;width:34px;height:34px;text-decoration:none;display:inline-grid}.icon-button:hover{background:var(--panel-2)}.icon-button.small{background:0 0;border:0;width:28px;height:28px}.toolbar{background:var(--panel);border-bottom:1px solid var(--border);justify-content:space-between;gap:12px;min-height:54px;padding:9px 14px;display:flex}.tool-group{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.tool{border:1px solid var(--border);background:var(--panel);border-radius:8px;align-items:center;gap:7px;height:34px;padding:0 11px;font-size:13px;font-weight:600;display:inline-flex}.tool:hover{background:var(--panel-2)}.tool.primary{color:#fff;border-color:var(--accent);background:var(--accent)}.danger-text{color:var(--red)}.select-wrap{border:1px solid var(--border);background:var(--panel);border-radius:8px;align-items:center;gap:6px;height:34px;padding:0 8px;display:flex}.select-wrap select{color:var(--text);background:0 0;border:0;outline:0;font-size:13px}.segmented{background:var(--panel-2);border:1px solid var(--border);border-radius:9px;padding:3px;display:flex}.segmented button{color:var(--muted);background:0 0;border:0;border-radius:6px;align-items:center;gap:5px;padding:6px 8px;font-size:12px;font-weight:650;display:flex}.segmented button.active{color:var(--text);background:var(--panel);box-shadow:0 2px 8px #00000014}.workspace{flex:1;gap:10px;min-height:0;padding:12px;display:flex;position:relative}.history-panel{border:1px solid var(--border);background:var(--panel);width:260px;min-height:0;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;flex:0 0 260px;transition:all .2s;display:flex;overflow:hidden}.history-panel.collapsed{opacity:0;border:0;flex-basis:0;width:0}.history-heading{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px;display:flex}.history-heading>div{align-items:center;gap:8px;font-size:14px;font-weight:700;display:flex}.history-search{border:1px solid var(--border);background:var(--panel-2);height:34px;color:var(--muted);border-radius:8px;align-items:center;gap:7px;margin:10px;padding:0 9px;display:flex}.history-search input{width:100%;color:var(--text);background:0 0;border:0;outline:0;font-size:12px}.history-list{flex:1;padding:0 8px 8px;overflow:auto}.history-item{text-align:left;background:0 0;border:0;border-radius:8px;align-items:center;gap:8px;width:100%;padding:9px 7px;display:flex}.history-item:hover{background:var(--panel-2)}.history-icon{width:30px;height:30px;color:var(--accent);background:var(--accent-soft);border-radius:8px;flex:none;place-items:center;display:grid}.history-copy{flex:1;min-width:0}.history-copy strong,.history-copy small{white-space:nowrap;text-overflow:ellipsis;display:block;overflow:hidden}.history-copy strong{font-size:12px}.history-copy small{color:var(--muted);margin-top:3px;font-size:10px}.history-delete{opacity:0;color:var(--muted)}.history-item:hover .history-delete{opacity:1}.clear-history{border:0;border-top:1px solid var(--border);height:32px;color:var(--muted);background:0 0;justify-content:center;align-items:center;gap:6px;margin:8px;font-size:11px;display:flex}.empty-history{color:var(--muted);text-align:center;padding:24px 12px;font-size:12px;line-height:1.5}.history-reopen{z-index:4;border:1px solid var(--border);background:var(--panel);width:34px;height:34px;box-shadow:var(--shadow);border-radius:9px;place-items:center;display:grid;position:absolute;top:18px;left:18px}.editor-grid{flex:1;grid-template-columns:1fr 1fr;gap:10px;min-width:0;min-height:0;display:grid}.panel{background:var(--panel);border:1px solid var(--border);min-width:0;min-height:640px;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;display:flex;overflow:hidden}.panel-heading{border-bottom:1px solid var(--border);flex:0 0 44px;justify-content:space-between;align-items:center;height:44px;padding:0 12px;display:flex}.panel-heading>div{align-items:center;gap:7px;font-size:12px;display:flex}.panel-heading strong{font-size:13px}.panel-heading span{color:var(--muted)}.status{border-radius:7px;padding:5px 8px;font-weight:700;font-size:11px!important}.status.valid{color:var(--green);background:var(--green-soft)}.status.invalid{color:var(--red);background:var(--red-soft)}.error-strip{color:var(--red);background:var(--red-soft);border-bottom:1px solid var(--border);white-space:nowrap;text-overflow:ellipsis;padding:8px 12px;font:12px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;overflow:hidden}.editor-box,.output-content{flex:1;min-height:0;position:relative}.monaco-editor,.monaco-editor-background,.monaco-editor .margin{background-color:var(--panel)!important}.invalid-empty{height:100%;color:var(--muted);text-align:center;place-content:center;justify-items:center;gap:8px;display:grid}.invalid-empty strong{color:var(--text);font-size:14px}.invalid-empty span{font-size:12px}.tree-view{height:100%;padding:12px 8px 30px;font:13px/1.8 ui-monospace,SFMono-Regular,Menlo,monospace;overflow:auto}.tree-row{white-space:nowrap;min-height:25px}.tree-toggle{width:100%;color:var(--text);text-align:left;font:inherit;background:0 0;border:0;align-items:center;display:flex}.tree-toggle:hover{background:var(--panel-2)}.tree-key{color:#c77dff}.token-string{color:#36b37e}.token-number{color:#4c9aff}.token-boolean{color:#ff9f43}.token-null{color:#ff6b81}.tree-muted{color:var(--muted);font-size:11px}.tree-bracket{color:var(--muted)}.table-wrap{height:100%;overflow:auto}table{border-collapse:collapse;min-width:100%;font-size:12px}th,td{border-right:1px solid var(--border);border-bottom:1px solid var(--border);text-align:left;white-space:nowrap;text-overflow:ellipsis;max-width:320px;padding:9px 11px;overflow:hidden}th{z-index:1;background:var(--panel-2);color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:11px;position:sticky;top:0}.table-note{color:var(--muted);padding:10px;font-size:11px}footer{border-top:1px solid var(--border);background:var(--panel);min-height:34px;color:var(--muted);justify-content:space-between;align-items:center;padding:0 16px;font-size:10px;display:flex}.toast{z-index:99;background:var(--text);color:var(--panel);border-radius:9px;align-items:center;gap:7px;padding:10px 13px;font-size:12px;display:flex;position:fixed;bottom:50px;left:50%;transform:translate(-50%);box-shadow:0 10px 30px #00000040}.mobile-only{display:none}@media (max-width:1050px){.toolbar{align-items:flex-start}.right-tools{justify-content:flex-end}.history-panel{flex-basis:220px;width:220px}.segmented button{font-size:0}.segmented button svg{margin:0}}@media (max-width:780px){.mobile-only{display:inline-grid}.privacy-pill{display:none}.toolbar{z-index:20;box-shadow:var(--shadow);flex-direction:column;display:none;position:absolute;top:58px;left:0;right:0}.toolbar.mobile-open{display:flex}.tool-group{width:100%}.tool{flex:31%;justify-content:center}.right-tools{justify-content:stretch}.select-wrap,.segmented,.segmented button{flex:1}.workspace{padding:8px}.history-panel,.history-reopen{display:none}.editor-grid{grid-template-columns:1fr}.panel,.output-panel{min-height:520px}footer{display:none}.status{white-space:nowrap;text-overflow:ellipsis;max-width:160px;overflow:hidden}}