*{box-sizing:border-box;margin:0;padding:0}:root{--primary-color: #6366f1;--primary-hover: #818cf8;--primary-light: #e0e7ff;--secondary-color: #8b5cf6;--success-color: #10b981;--warning-color: #f59e0b;--error-color: #ef4444;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--text-primary: #1e293b;--text-secondary: #64748b;--text-tertiary: #94a3b8;--border-color: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--dark-bg-primary: #0f172a;--dark-bg-secondary: #1e293b;--dark-bg-tertiary: #334155;--dark-text-primary: #f8fafc;--dark-text-secondary: #cbd5e1;--dark-text-tertiary: #94a3b8;--dark-border-color: #475569;--dark-shadow-md: 0 4px 6px -1px rgb(0 0 0 / .3), 0 2px 4px -2px rgb(0 0 0 / .3)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-secondary);color:var(--text-primary);transition:all .3s ease;line-height:1.6}.app-container{height:100vh;overflow:hidden;display:flex;flex-direction:column}.app-header{background-color:var(--bg-primary);box-shadow:var(--shadow-md);padding:1rem 2rem;z-index:100;border-bottom:1px solid var(--border-color)}.header-content{display:flex;justify-content:space-between;align-items:center;max-width:100%}.header-content h1{font-size:1.75rem;font-weight:700;color:var(--primary-color);background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-right{display:flex;align-items:center;gap:1rem}.header-right label{font-size:.9rem;color:var(--text-secondary);font-weight:500}input[type=checkbox]{position:relative;width:44px;height:24px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-color:var(--bg-tertiary);border-radius:20px;transition:all .3s ease;cursor:pointer;outline:none;border:2px solid var(--border-color)}input[type=checkbox]:checked{background-color:var(--primary-color);border-color:var(--primary-color)}input[type=checkbox]:before{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background-color:var(--bg-primary);border-radius:50%;transition:all .3s ease;box-shadow:var(--shadow-sm)}input[type=checkbox]:checked:before{transform:translate(20px)}.app-content{display:flex;flex:1;overflow:hidden;padding:1.5rem;gap:1.5rem}.input-sider{width:450px;background-color:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden;display:flex;flex-direction:column;transition:all .3s ease}.input-sider:hover{box-shadow:var(--shadow-lg)}.result-content{flex:1;background-color:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden;display:flex;flex-direction:column;transition:all .3s ease}.result-content:hover{box-shadow:var(--shadow-lg)}.input-card,.result-card{display:flex;flex-direction:column;height:100%;padding:1.5rem}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.card-header h2{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.header-buttons{display:flex;gap:.75rem;align-items:center}.header-buttons button{padding:.4rem .8rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);background-color:var(--bg-secondary);cursor:pointer;font-size:.85rem;font-weight:500;color:var(--text-secondary);transition:all .3s ease;box-shadow:var(--shadow-sm)}.header-buttons button:hover{border-color:var(--primary-color);color:var(--primary-color);background-color:var(--primary-light);box-shadow:var(--shadow-md);transform:translateY(-1px)}.json-input{flex:1;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;padding:1rem;border:1px solid var(--border-color);border-radius:var(--radius-md);resize:none;outline:none;transition:all .3s ease;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.5}.json-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a;background-color:var(--bg-primary)}.button-group{display:flex;gap:.75rem;margin-top:1.25rem;flex-wrap:wrap}.btn-borderless{border:1px solid transparent;padding:.5rem 1rem;min-width:80px}.btn{padding:.5rem 1rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;font-size:.9rem;font-weight:500;transition:all .3s ease;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:all .3s ease}.btn:hover:before{left:100%}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border-color:var(--primary-color)}.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);background:linear-gradient(135deg,var(--primary-hover),var(--secondary-color))}.btn-secondary{background-color:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-color)}.btn-secondary:hover{background-color:var(--bg-tertiary);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-borderless{background-color:transparent;color:var(--text-secondary);border:1px solid transparent;box-shadow:var(--shadow-sm);min-width:80px}.btn-borderless:hover{color:var(--primary-color);background-color:var(--primary-light);transform:translateY(-1px);border-color:var(--primary-color);box-shadow:var(--shadow-md)}.btn-warning{background:linear-gradient(135deg,var(--warning-color),#f97316);color:#fff;border-color:var(--warning-color)}.btn-warning:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);background:linear-gradient(135deg,#fbbf24,#f97316)}.alert{margin-top:1.25rem;padding:1rem;border-radius:var(--radius-md);font-size:.9rem;border-left:4px solid var(--warning-color);background-color:#f59e0b1a;color:var(--text-primary);box-shadow:var(--shadow-sm)}.alert-warning{background-color:#f59e0b1a;border-color:var(--warning-color);color:#92400e}.json-tree-container{flex:1;overflow:auto;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.25rem;margin-top:.75rem;line-height:1.6;transition:all .3s ease}.json-tree-container:hover{border-color:var(--primary-color);box-shadow:0 0 0 1px #6366f11a}.empty-state{display:flex;justify-content:center;align-items:center;height:100%;color:var(--text-tertiary);font-size:.95rem;font-style:italic}.search-results{background-color:var(--primary-light);border:1px solid rgba(99,102,241,.2);border-radius:var(--radius-md);padding:1rem;margin-top:.75rem;box-shadow:var(--shadow-sm)}.result-header{font-weight:600;margin-bottom:.75rem;color:var(--primary-color);font-size:.95rem}.result-list{display:flex;gap:.75rem;flex-wrap:wrap}.result-item{padding:.4rem .8rem;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;color:var(--text-secondary);transition:all .3s ease;box-shadow:var(--shadow-sm);font-family:Monaco,Menlo,Ubuntu Mono,monospace}.result-item:hover{border-color:var(--primary-color);color:var(--primary-color);background-color:var(--primary-light);transform:translateY(-1px);box-shadow:var(--shadow-md)}.more-results{color:var(--text-tertiary);font-size:.85rem;align-self:center;font-style:italic}.search-bar{display:flex;align-items:center;gap:.5rem}.search-input{padding:.4rem .8rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:.85rem;outline:none;transition:all .3s ease;background-color:var(--bg-secondary);color:var(--text-primary);width:200px}.search-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a;width:240px}.search-bar input{padding:.4rem .8rem;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:.85rem;outline:none;transition:all .3s ease;background-color:var(--bg-secondary);color:var(--text-primary);width:200px}.search-bar input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a;width:240px}.json-tree{padding-left:0;margin:0;list-style:none}.json-tree-node{margin:4px 0}.json-tree-key{color:var(--text-primary);font-weight:600}.json-tree-separator{color:var(--text-tertiary);margin:0 4px}.json-tree-value{color:var(--text-primary)}.json-tree-value-string{color:#f59e0b}.json-tree-value-number{color:#3b82f6}.json-tree-value-boolean{color:#10b981}.json-tree-value-null{color:#8b5cf6;font-style:italic}.json-tree-value-timestamp{color:#3b82f6}.json-tree-timestamp-human{color:var(--text-tertiary);font-size:12px;margin-left:8px;font-style:italic}.json-tree-toggle{background:none;border:none;cursor:pointer;color:var(--text-tertiary);padding:0 4px;font-size:12px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:all .3s ease;border-radius:4px}.json-tree-toggle:hover{color:var(--primary-color);background-color:var(--primary-light)}.json-tree-children{padding-left:24px;margin:0;list-style:none}.search-highlight{background-color:#fbbf244d;border-radius:3px;padding:0 3px;color:#92400e;font-weight:600;box-shadow:0 0 0 1px #fbbf2466}.dark-mode,.dark-mode body{background-color:var(--dark-bg-primary);color:var(--dark-text-primary)}.dark-mode .app-header{background-color:var(--dark-bg-primary);box-shadow:var(--dark-shadow-md);border-bottom-color:var(--dark-border-color)}.dark-mode .header-content h1{background:linear-gradient(135deg,#818cf8,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.dark-mode .app-content{background-color:var(--dark-bg-primary)}.dark-mode .input-sider,.dark-mode .result-content{background-color:var(--dark-bg-secondary);box-shadow:var(--dark-shadow-md)}.dark-mode .input-sider:hover,.dark-mode .result-content:hover{box-shadow:0 20px 25px -5px #0006,0 8px 10px -6px #0006}.dark-mode .card-header{border-bottom-color:var(--dark-border-color)}.dark-mode .card-header h2{color:var(--dark-text-primary)}.dark-mode .json-input{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color);color:var(--dark-text-primary)}.dark-mode .json-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f126;background-color:var(--dark-bg-secondary)}.dark-mode .btn{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color);color:var(--dark-text-primary);box-shadow:var(--dark-shadow-sm)}.dark-mode .btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border-color:var(--primary-color)}.dark-mode .btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),var(--secondary-color))}.dark-mode .btn-secondary{background-color:var(--dark-bg-tertiary);color:var(--dark-text-primary);border-color:var(--dark-border-color)}.dark-mode .btn-secondary:hover{background-color:var(--dark-border-color)}.dark-mode .btn-borderless{background-color:transparent;color:var(--dark-text-secondary);border-color:transparent}.dark-mode .btn-borderless:hover{color:var(--primary-color);background-color:#6366f126}.dark-mode .btn-warning{background:linear-gradient(135deg,var(--warning-color),#f97316);color:#fff;border-color:var(--warning-color)}.dark-mode .btn-warning:hover{background:linear-gradient(135deg,#fbbf24,#f97316)}.dark-mode .alert{background-color:#f59e0b26;color:var(--dark-text-primary);border-left-color:var(--warning-color)}.dark-mode .json-tree-container{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color)}.dark-mode .json-tree-container:hover{border-color:var(--primary-color)}.dark-mode .json-tree-key{color:var(--dark-text-primary)}.dark-mode .json-tree-separator{color:var(--dark-text-tertiary)}.dark-mode .json-tree-value{color:var(--dark-text-primary)}.dark-mode .json-tree-toggle{color:var(--dark-text-tertiary)}.dark-mode .json-tree-toggle:hover{color:var(--primary-color);background-color:#6366f126}.dark-mode .search-highlight{background-color:#fbbf244d;color:#fbbf24;box-shadow:0 0 0 1px #fbbf2466}.dark-mode .header-right label{color:var(--dark-text-secondary)}.dark-mode input[type=checkbox]{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color)}.dark-mode input[type=checkbox]:checked{background-color:var(--primary-color);border-color:var(--primary-color)}.dark-mode input[type=checkbox]:before{background-color:var(--dark-bg-primary)}.dark-mode .result-item{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color);color:var(--dark-text-secondary)}.dark-mode .result-item:hover{border-color:var(--primary-color);color:var(--primary-color);background-color:#6366f126}.dark-mode .search-results{background-color:#6366f126;border-color:#6366f14d}.dark-mode .result-header{color:#818cf8}.dark-mode .more-results{color:var(--dark-text-tertiary)}.dark-mode .search-bar input{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color);color:var(--dark-text-primary)}.dark-mode .search-bar input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f126}.dark-mode .header-buttons button{background-color:var(--dark-bg-tertiary);border-color:var(--dark-border-color);color:var(--dark-text-secondary);box-shadow:var(--dark-shadow-sm)}.dark-mode .header-buttons button:hover{border-color:var(--primary-color);color:var(--primary-color);background-color:#6366f126;box-shadow:var(--dark-shadow-md)}.dark-mode .empty-state{color:var(--dark-text-tertiary)}.json-string-convert-btn{margin-left:8px;padding:2px 6px;background-color:var(--primary-color);color:#fff;border:none;border-radius:3px;font-size:11px;font-weight:500;cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm);vertical-align:middle}.json-string-convert-btn:hover{background-color:var(--primary-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.json-string-convert-btn:active{transform:translateY(0)}.dark-mode .json-string-convert-btn{background-color:var(--primary-color);color:#fff}.dark-mode .json-string-convert-btn:hover{background-color:var(--primary-hover)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:4px}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.dark-mode ::-webkit-scrollbar-track{background:var(--dark-bg-tertiary)}.dark-mode ::-webkit-scrollbar-thumb{background:var(--dark-border-color)}.dark-mode ::-webkit-scrollbar-thumb:hover{background:var(--dark-text-tertiary)}.notification{position:fixed;top:-80px;left:50%;transform:translate(-50%);padding:12px 24px;border-radius:8px;box-shadow:var(--shadow-lg);font-size:14px;font-weight:500;display:flex;align-items:center;gap:12px;z-index:1000;transition:all .3s ease;max-width:80%;width:auto}.notification-visible{top:20px}.notification-info{background-color:#e3f2fd;color:#1976d2;border-left:4px solid #1976d2}.notification-success{background-color:#e8f5e8;color:#388e3c;border-left:4px solid #388e3c}.notification-warning{background-color:#fff8e1;color:#f57c00;border-left:4px solid #f57c00}.notification-error{background-color:#ffebee;color:#d32f2f;border-left:4px solid #d32f2f}.notification-close{background:none;border:none;font-size:20px;cursor:pointer;color:inherit;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color .2s ease}.notification-close:hover{background-color:#0000001a}.dark-mode .notification-info{background-color:#1565c0;color:#bbdefb;border-left-color:#bbdefb}.dark-mode .notification-success{background-color:#2e7d32;color:#c8e6c9;border-left-color:#c8e6c9}.dark-mode .notification-warning{background-color:#f57c00;color:#fff3e0;border-left-color:#fff3e0}.dark-mode .notification-error{background-color:#c62828;color:#ffcdd2;border-left-color:#ffcdd2}.dark-mode .notification-close:hover{background-color:#ffffff1a}