:root{--bg-dark:#050510;--card:#ffffff05;--input-bg:#ffffff08;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--border:#ffffff0f;--cyan:#22d3ee;--purple:#a855f7;--accent:var(--calc-color-tools);--font-mono:"JetBrains Mono", "Courier New", monospace}body{background:var(--calc-bg-page);color:var(--calc-text-primary);min-height:100vh}.dashboard-container{max-width:1600px;margin:0 auto;padding:80px 1.5rem 2rem}.breadcrumb{color:var(--calc-text-dim);margin-bottom:1.25rem;font-size:.78rem}.breadcrumb a{color:var(--calc-text-dim);text-decoration:none;transition:color .2s}.breadcrumb a:hover{color:var(--calc-cyan)}.breadcrumb .sep{opacity:.4;margin:0 6px}.tool-hero{margin-bottom:1.5rem}.tool-hero__title{color:var(--calc-text-primary);margin:0 0 8px;font-size:2rem;font-weight:800;line-height:1.2}.tool-hero__accent{background:linear-gradient(135deg, var(--calc-cyan), var(--purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.tool-hero__subtitle{color:var(--calc-text-dim);max-width:700px;margin:0;font-size:.95rem;line-height:1.6}.controls-row{flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:20px;display:flex}.controls-group{flex-direction:column;gap:4px;display:flex}.controls-select{width:auto;min-width:130px;padding:9px 14px}.controls-buttons{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.controls-divider{background:#ffffff14;flex-shrink:0;align-self:center;width:1px;height:32px}.auto-fmt-toggle{color:var(--calc-text-dim);cursor:pointer;user-select:none;align-items:center;gap:7px;padding-bottom:2px;font-size:.78rem;display:flex}.auto-fmt-toggle input[type=checkbox]{accent-color:var(--calc-cyan);cursor:pointer;flex-shrink:0;width:13px;height:13px}.json-textarea{min-height:380px;font-family:var(--font-mono);tab-size:2;white-space:pre;font-size:.82rem;line-height:1.7;overflow-x:auto}.input-meta{color:var(--calc-text-muted);font-size:.72rem;font-family:var(--font-mono);gap:4px;margin-top:8px;padding:0 2px;display:flex}.meta-sep{opacity:.3;margin:0 4px}.output-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:4px;margin-left:auto;padding:2px 8px;font-size:.68rem;font-weight:700}.output-badge.badge-formatted{color:var(--calc-cyan);background:#22d3ee1f}.output-badge.badge-minified{color:var(--purple);background:#a855f71f}.output-badge.badge-valid{color:#10b981;background:#10b9811f}.output-badge.badge-invalid{color:#ef4444;background:#ef44441f}.output-actions{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.tree-empty{text-align:center;color:var(--calc-text-dim);padding:60px 24px;font-size:.88rem;line-height:1.7}.tree-empty__icon{margin-bottom:16px}.tree-empty strong{color:var(--calc-text-primary)}.tree-toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;display:flex}.tree-search{flex:1;min-width:140px;max-width:260px}.tree-toolbar-btns{flex-shrink:0;gap:6px;display:flex}.tree-path-bar{color:var(--calc-text-muted);font-size:.72rem;font-family:var(--font-mono);align-items:center;gap:6px;margin-left:auto;display:flex;overflow:hidden}.tree-path-label{color:var(--calc-text-dim);flex-shrink:0}.tree-path-code{color:var(--calc-cyan);text-overflow:ellipsis;white-space:nowrap;background:#22d3ee12;border-radius:4px;max-width:340px;padding:2px 8px;overflow:hidden}.tree-container{font-family:var(--font-mono);background:#ffffff04;border:1px solid #ffffff0f;border-radius:12px;max-height:620px;padding:14px 16px;font-size:.8rem;line-height:1.65;overflow:auto}.tree-node{padding-left:18px}.tree-node:first-child{padding-left:0}.tree-row{cursor:default;white-space:nowrap;border-radius:4px;align-items:baseline;gap:4px;min-height:20px;padding:1px 4px;transition:background .12s;display:flex}.tree-row:hover{cursor:pointer;background:#ffffff0a}.tree-toggle{color:var(--calc-text-dim);cursor:pointer;text-align:center;user-select:none;flex-shrink:0;width:14px;font-size:.55rem;line-height:1.65;transition:color .15s}.tree-toggle:hover,.tree-toggle.expanded{color:var(--calc-cyan)}.tree-spacer{flex-shrink:0;width:14px;display:inline-block}.tree-key{color:#c8d3e0;flex-shrink:0;padding-right:1px;font-weight:600}.tree-brace{color:var(--calc-text-dim);flex-shrink:0}.tree-count{color:var(--calc-text-muted);background:#ffffff0d;border-radius:10px;flex-shrink:0;padding:0 6px;font-size:.68rem}.tree-value{flex-shrink:0}.tree-value--string{color:#4ade80}.tree-value--number{color:#fbbf24}.tree-value--boolean{color:#60a5fa}.tree-value--null{color:var(--calc-text-muted);font-style:italic}.tree-children{border-left:1px solid #ffffff0d;margin-left:5px}.tree-row.tree-highlight{background:#22d3ee12;outline:1px solid #22d3ee26}.tree-row.tree-dim{opacity:.25}.convert-header{margin-bottom:20px}.convert-desc{color:var(--calc-text-dim);margin:0 0 14px;font-size:.88rem}.convert-chips{flex-wrap:wrap;gap:8px;display:flex}.convert-info{color:var(--calc-text-muted);font-size:.73rem;font-family:var(--font-mono);margin-left:auto}.convert-output-card{margin-top:0}.convert-empty-state{text-align:center;color:var(--calc-text-dim);padding:36px 16px;font-size:.85rem}.convert-ref-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:20px;display:grid}.convert-ref-card{background:#ffffff05;border:1px solid #ffffff0f;border-radius:12px;padding:18px}.convert-ref-card__title{color:var(--calc-cyan);margin:0 0 8px;font-size:.85rem;font-weight:700}.convert-ref-card__desc{color:var(--calc-text-dim);margin:0;font-size:.8rem;line-height:1.65}.convert-ref-card__desc strong{color:var(--calc-text-primary)}.section-title{color:var(--calc-text-primary);margin:0 0 1.25rem;font-size:1.4rem;font-weight:800}.how-section{margin-top:3rem}.how-steps{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.how-step{background:#ffffff05;border:1px solid #ffffff0f;border-radius:12px;padding:20px;transition:border-color .2s}.how-step:hover{border-color:#22d3ee33}.how-step__number{width:32px;height:32px;color:var(--calc-cyan);background:#22d3ee1a;border-radius:50%;justify-content:center;align-items:center;margin-bottom:12px;font-size:.85rem;font-weight:800;display:flex}.how-step__title{color:var(--calc-text-primary);margin:0 0 6px;font-size:.95rem;font-weight:700}.how-step__desc{color:var(--calc-text-dim);margin:0;font-size:.82rem;line-height:1.6}.how-step__desc code,.how-step__desc kbd{font-family:var(--font-mono);color:var(--calc-cyan);background:#ffffff0f;border-radius:4px;padding:1px 5px;font-size:.78rem}.how-step__desc strong{color:var(--calc-text-primary)}.faq-section{margin-top:3rem}.faq-list{flex-direction:column;display:flex}.faq-item-enhanced{border-bottom:1px solid #ffffff0f}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.9rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--font-mono);color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item-enhanced[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:var(--calc-cyan)}.faq-item__answer{color:var(--calc-text-dim);padding:0 4px 14px;font-size:.85rem;line-height:1.75}.faq-item__answer code{font-family:var(--font-mono);color:var(--calc-cyan);background:#ffffff0f;border-radius:4px;padding:1px 5px;font-size:.78rem}.faq-item__answer strong{color:var(--calc-text-primary)}@media (width<=900px){.tool-hero__title{font-size:1.5rem}.json-textarea{min-height:240px}.controls-buttons{width:100%}.controls-buttons .tool-btn{flex:1;justify-content:center;min-width:0}.controls-divider,.tree-path-bar{display:none}.tree-toolbar{gap:8px}}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--input-bg:#fff;--text-main:#0f172a;--text-dim:#475569;--text-muted:#64748b;--border:#0000001a;--cyan:#0891b2;--purple:#7c3aed;--accent:var(--calc-color-tools)}[data-theme=light] body{color:#0f172a;background:#e8edf5}[data-theme=light] .breadcrumb,[data-theme=light] .breadcrumb a{color:#64748b}[data-theme=light] .breadcrumb a:hover{color:#0891b2}[data-theme=light] .tool-hero__title{color:#0f172a}[data-theme=light] .tool-hero__accent{background:linear-gradient(135deg,#0891b2,#7c3aed);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}[data-theme=light] .tool-hero__subtitle{color:#475569}[data-theme=light] .controls-select{color:#0f172a;background:#fff;border-color:#0000001f}[data-theme=light] .controls-select option{color:#0f172a;background:#fff}[data-theme=light] .controls-divider{background:#0000001a}[data-theme=light] .auto-fmt-toggle{color:#475569}[data-theme=light] .input-meta{color:#64748b}[data-theme=light] .output-badge.badge-formatted{color:#0891b2;background:#0891b21a}[data-theme=light] .output-badge.badge-minified{color:#7c3aed;background:#7c3aed1a}[data-theme=light] .output-badge.badge-valid{color:#166534;background:#f0fdf4}[data-theme=light] .output-badge.badge-invalid{color:#991b1b;background:#fff1f2}[data-theme=light] .tree-container{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .tree-row:hover{background:#00000008}[data-theme=light] .tree-key{color:#1e293b}[data-theme=light] .tree-brace{color:#64748b}[data-theme=light] .tree-count{color:#64748b;background:#f0f4f9}[data-theme=light] .tree-toggle{color:#94a3b8}[data-theme=light] .tree-toggle:hover,[data-theme=light] .tree-toggle.expanded{color:#0891b2}[data-theme=light] .tree-children{border-left-color:#00000012}[data-theme=light] .tree-value--string{color:#15803d}[data-theme=light] .tree-value--number{color:#0891b2}[data-theme=light] .tree-value--boolean{color:#1d4ed8}[data-theme=light] .tree-value--null{color:#94a3b8}[data-theme=light] .tree-path-code{color:#0891b2;background:#0891b212}[data-theme=light] .tree-path-bar{color:#64748b}[data-theme=light] .tree-path-label{color:#475569}[data-theme=light] .tree-row.tree-highlight{background:#0891b212;outline-color:#0891b226}[data-theme=light] .tree-empty{color:#64748b}[data-theme=light] .tree-empty strong{color:#0f172a}[data-theme=light] .convert-desc{color:#475569}[data-theme=light] .convert-info,[data-theme=light] .convert-empty-state{color:#64748b}[data-theme=light] .convert-ref-card{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .convert-ref-card__title{color:#0891b2}[data-theme=light] .convert-ref-card__desc{color:#475569}[data-theme=light] .convert-ref-card__desc strong,[data-theme=light] .section-title{color:#0f172a}[data-theme=light] .how-step{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .how-step:hover{border-color:#0891b24d}[data-theme=light] .how-step__number{color:#0891b2;background:#0891b21a}[data-theme=light] .how-step__title{color:#0f172a}[data-theme=light] .how-step__desc{color:#475569}[data-theme=light] .how-step__desc strong{color:#0f172a}[data-theme=light] .how-step__desc code,[data-theme=light] .how-step__desc kbd{color:#0891b2;background:#f0f4f9}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item-enhanced{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item-enhanced:hover{border-color:#0891b259;box-shadow:0 2px 10px #0891b214}[data-theme=light] .faq-item-enhanced[open]{border-color:#0891b266 #0891b266 #0891b266 #0891b2;border-left-style:solid;border-left-width:3px}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item-enhanced[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0891b2}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}[data-theme=light] .faq-item__answer code{color:#0891b2;background:#f0f4f9}[data-theme=light] .faq-item__answer strong{color:#0f172a}