:root{--bg:#f5f6f8;--surface:#fff;--border:#d9dce1;--text:#1c1f24;--text-muted:#6b7280;--accent:#2f6feb;--accent-contrast:#fff;--error-bg:#fdeceb;--error-border:#e5534b;--error-text:#8a1f16;--json-key:#8250df;--json-string:#0a7d4f;--json-number:#2f6feb;--json-boolean:#c2410c;--json-null:#6b7280;--json-bracket:#6b7280;--mono:ui-monospace, "SF Mono", Consolas, "Cascadia Code", monospace;--sans:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:root[data-theme=dark]{--bg:#14161a;--surface:#1b1e24;--border:#2e333c;--text:#e6e8eb;--text-muted:#9aa1ac;--accent:#5b9dff;--accent-contrast:#0b1220;--error-bg:#3a1c1c;--error-border:#e5534b;--error-text:#ffb4ac;--json-key:#c297ff;--json-string:#4fd88f;--json-number:#5b9dff;--json-boolean:#f0a060;--json-null:#9aa1ac;--json-bracket:#9aa1ac;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--sans);margin:0}button,select{font-family:inherit}.app{flex-direction:column;max-width:1280px;min-height:100%;margin:0 auto;padding:24px 24px 40px;display:flex}.site-header{align-items:center;gap:10px;margin-bottom:12px;display:flex}.site-header__brand{color:var(--accent);white-space:nowrap;font-size:15px;font-weight:700;text-decoration:none}.site-header__brand:hover{text-decoration:underline}.site-header__divider{color:var(--text-muted);font-weight:400}.site-header__title{color:var(--text-muted);white-space:nowrap;font-size:15px;font-weight:600}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-header{margin-bottom:16px}.app-header h1{margin:0 0 4px;font-size:28px;font-weight:600}.app-subtitle{color:var(--text-muted);margin:0;font-size:14px}.toolbar{background:var(--surface);border:1px solid var(--border);border-radius:8px;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;padding:8px;display:flex}.toolbar-group{align-items:center;gap:6px;display:flex}.toolbar-spacer{flex:1}.indent-select{color:var(--text-muted);font-size:13px}.indent-select select{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:6px;padding:4px 6px}.toggle-btn,.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:13px}.toggle-btn:hover,.btn:hover{border-color:var(--accent)}.toggle-btn.active{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast)}.btn:disabled{opacity:.5;cursor:not-allowed}.icon-btn{padding:6px 10px}.error-banner{background:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text);border-radius:8px;margin-bottom:12px;padding:10px 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0;font-size:11px}.json-key{color:var(--json-key)}.json-colon{color:var(--text-muted)}.json-string{color:var(--json-string)}.json-number{color:var(--json-number)}.json-boolean{color:var(--json-boolean)}.json-null{color:var(--json-null)}.json-bracket{color:var(--json-bracket)}.json-comma{color:var(--text-muted)}.tree-collapsed-summary{color:var(--text-muted);font-style:italic}