*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #0f1117;--bg-secondary: #1a1d27;--bg-tertiary: #22263a;--bg-card: #1e2235;--border-color: #2e3354;--border-light: #3a3f5c;--text-primary: #e8eaf6;--text-secondary: #8892b0;--text-muted: #5a6483;--accent-blue: #7c83fd;--accent-purple: #a78bfa;--accent-cyan: #67e8f9;--accent-green: #4ade80;--accent-orange: #fb923c;--accent-red: #f87171;--accent-yellow: #fbbf24;--json-key: #7dd3fc;--json-string: #86efac;--json-number: #fb923c;--json-boolean: #c084fc;--json-null: #94a3b8;--json-punctuation: #64748b;--highlight-bg: rgba(251, 191, 36, .3);--highlight-border: #fbbf24;--shadow: 0 4px 24px rgba(0, 0, 0, .4);--radius: 12px;--radius-sm: 8px}body{font-family:Segoe UI,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:linear-gradient(135deg,#1a1d27 0%,#22263a 100%);border-bottom:1px solid var(--border-color);padding:16px 24px;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{max-width:1600px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:flex;align-items:center;gap:14px}.logo-icon{font-size:28px;font-weight:900;background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-family:Courier New,monospace;letter-spacing:-2px;line-height:1}.logo h1{font-size:20px;font-weight:700;background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}.logo p{font-size:12px;color:var(--text-muted)}.header-actions{display:flex;align-items:center;gap:12px}.indent-control{display:flex;align-items:center;gap:8px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:6px 12px}.indent-control label{font-size:13px;color:var(--text-secondary);white-space:nowrap}.indent-control select{background:transparent;border:none;color:var(--text-primary);font-size:13px;cursor:pointer;outline:none}.indent-control select option{background:var(--bg-tertiary);color:var(--text-primary)}.main{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:0;max-width:1600px;width:100%;margin:0 auto;padding:24px;gap:20px}@media (max-width: 900px){.main{grid-template-columns:1fr;padding:16px}}.panel{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);min-height:600px}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-color)}.panel-header h2{font-size:15px;font-weight:600;color:var(--text-primary)}.panel-actions{display:flex;gap:8px}.btn{padding:7px 16px;border-radius:var(--radius-sm);border:none;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s ease;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));color:#fff}.btn-primary:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 4px 12px #7c83fd66}.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--border-color);color:var(--text-primary);border-color:var(--border-light)}.btn-danger{background:rgba(248,113,113,.15);color:var(--accent-red);border:1px solid rgba(248,113,113,.3)}.btn-danger:hover{background:rgba(248,113,113,.25)}.btn-success{background:rgba(74,222,128,.15);color:var(--accent-green);border:1px solid rgba(74,222,128,.3)}.btn-success:hover{background:rgba(74,222,128,.25)}.btn-info{background:rgba(103,232,249,.15);color:var(--accent-cyan);border:1px solid rgba(103,232,249,.3)}.btn-info:hover{background:rgba(103,232,249,.25)}.json-input{flex:1;width:100%;padding:16px 20px;background:transparent;border:none;outline:none;color:var(--text-primary);font-family:JetBrains Mono,Fira Code,Cascadia Code,Courier New,monospace;font-size:13px;line-height:1.7;resize:none;min-height:400px;-moz-tab-size:2;tab-size:2}.json-input::placeholder{color:var(--text-muted)}.json-input::-webkit-scrollbar{width:6px}.json-input::-webkit-scrollbar-track{background:transparent}.json-input::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.error-box{display:flex;align-items:flex-start;gap:8px;margin:0 16px;padding:12px 16px;background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.3);border-radius:var(--radius-sm);color:var(--accent-red);font-size:13px;line-height:1.5}.error-icon{flex-shrink:0;margin-top:1px}.format-actions{display:flex;gap:10px;padding:16px 20px;border-top:1px solid var(--border-color);background:var(--bg-tertiary)}.format-actions .btn{flex:1;padding:10px;font-size:14px}.search-bar{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-color)}.search-input-wrapper{flex:1;display:flex;align-items:center;gap:8px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:0 12px;transition:border-color .2s}.search-input-wrapper:focus-within{border-color:var(--accent-blue);box-shadow:0 0 0 2px #7c83fd26}.search-icon{font-size:14px;flex-shrink:0}.search-input{flex:1;background:transparent;border:none;outline:none;color:var(--text-primary);font-size:13px;padding:9px 0}.search-input::placeholder{color:var(--text-muted)}.search-clear{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:12px;padding:2px 4px;border-radius:4px;transition:all .2s}.search-clear:hover{color:var(--text-primary);background:var(--border-color)}.search-count{font-size:12px;font-weight:500;white-space:nowrap;padding:4px 10px;border-radius:20px}.search-count.found{background:rgba(74,222,128,.15);color:var(--accent-green);border:1px solid rgba(74,222,128,.3)}.search-count.not-found{background:rgba(248,113,113,.12);color:var(--accent-red);border:1px solid rgba(248,113,113,.3)}.stats-bar{display:flex;gap:16px;padding:8px 16px;background:rgba(124,131,253,.05);border-bottom:1px solid var(--border-color)}.stat-item{font-size:12px;color:var(--text-secondary);display:flex;align-items:center;gap:4px}.json-output{flex:1;overflow:auto;background:var(--bg-secondary)}.json-output::-webkit-scrollbar{width:8px;height:8px}.json-output::-webkit-scrollbar-track{background:var(--bg-primary)}.json-output::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.json-output::-webkit-scrollbar-thumb:hover{background:var(--border-light)}.json-content{padding:12px 0;font-family:JetBrains Mono,Fira Code,Cascadia Code,Courier New,monospace;font-size:13px;line-height:1.7;min-width:max-content}.json-line{display:flex;align-items:flex-start;padding:1px 0;transition:background .15s}.json-line:hover{background:rgba(255,255,255,.03)}.line-number{display:inline-block;width:48px;min-width:48px;text-align:right;padding-right:16px;color:var(--text-muted);font-size:12px;-webkit-user-select:none;user-select:none;line-height:1.7;border-right:1px solid var(--border-color);margin-right:16px}.line-content{flex:1;white-space:pre}.json-key{color:var(--json-key);font-weight:500}.json-string{color:var(--json-string)}.json-number{color:var(--json-number)}.json-boolean{color:var(--json-boolean)}.json-null{color:var(--json-null);font-style:italic}.json-punctuation{color:var(--json-punctuation)}.search-highlight{background:var(--highlight-bg);color:var(--accent-yellow);border-radius:2px;padding:0 1px;outline:1px solid rgba(251,191,36,.5);font-weight:600}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:300px;gap:16px;color:var(--text-muted)}.empty-icon{font-size:48px;font-weight:900;font-family:Courier New,monospace;background:linear-gradient(135deg,var(--border-color),var(--border-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-4px}.empty-state p{font-size:14px;text-align:center;line-height:1.8}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.json-content{animation:fadeIn .2s ease}