.tool-header{text-align:center;margin-bottom:32px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #10b981, #059669);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg, #1e293b, #10b981);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:0.95rem}.stats-cards{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stat-card{background:white;border-radius:20px;padding:16px 24px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200);transition:all 0.3s}.stat-card:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,0,0,0.1)}.stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:16px;display:flex;align-items:center;justify-content:center;color:#059669;font-size:1.3rem}.stat-info{text-align:left}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500)}.json-excel-container{display:grid;grid-template-columns:1fr 1.2fr;gap:24px;margin-bottom:24px}.json-input-section{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;border:1px solid var(--gray-200);box-shadow:0 4px 20px rgba(0,0,0,0.03)}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--gray-200)}.header-title{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--gray-700)}.header-title i{color:#059669}.badge-count{background:var(--gray-100);color:var(--gray-600);font-size:0.65rem;padding:2px 8px;border-radius:20px}.header-actions{display:flex;gap:8px}.icon-btn-sm{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500)}.icon-btn-sm:hover{background:var(--gray-100);color:#059669}.file-upload-label{cursor:pointer;display:inline-flex;align-items:center;padding:6px 10px;border-radius:30px;transition:all 0.2s;color:var(--gray-500)}.file-upload-label:hover{background:var(--gray-100);color:#059669}.json-textarea{width:100%;min-height:280px;padding:16px;border:1px solid var(--gray-200);border-radius:16px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.5;resize:vertical;background:#1a1a2e;color:#e0e0e0}.json-textarea:focus{outline:none;border-color:#059669;box-shadow:0 0 0 3px rgba(5,150,105,0.1)}.convert-options{margin-top:20px;padding:16px;background:var(--gray-50);border-radius:16px}.option-group{margin-bottom:16px}.option-group label{display:block;font-size:0.75rem;font-weight:600;color:var(--gray-500);margin-bottom:8px}.mode-buttons{display:flex;gap:12px}.mode-btn{background:white;border:1px solid var(--gray-200);padding:8px 20px;border-radius:40px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.mode-btn.active{background:#059669;border-color:#059669;color:white}.headers-input{width:100%;padding:10px 16px;border:1px solid var(--gray-200);border-radius:40px;font-size:0.85rem}.export-buttons{display:flex;gap:12px}.export-btn{background:linear-gradient(135deg, #10b981, #059669);padding:10px 24px;border-radius:40px;font-size:0.85rem}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:10px 24px;border-radius:40px;font-weight:500;cursor:pointer;transition:all 0.3s;display:inline-flex;align-items:center;gap:8px;font-size:0.85rem}.btn-outline:hover{background:var(--gray-100);border-color:#059669;color:#059669}.table-preview-section{background:white;border-radius:24px;border:1px solid var(--gray-200);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,0.03)}.table-wrapper{position:relative;min-height:350px;max-height:500px;overflow:auto}.loading-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(255,255,255,0.9);display:flex;align-items:center;justify-content:center;gap:12px;z-index:10;font-size:0.9rem;color:#059669}.table-container{padding:0;overflow-x:auto}.data-table{width:100%;border-collapse:collapse;font-size:0.8rem}.data-table th,.data-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--gray-200);white-space:nowrap}.data-table th{background:linear-gradient(135deg, #f8fafc, #f1f5f9);font-weight:600;color:var(--gray-700);position:sticky;top:0;z-index:5}.data-table td{color:var(--gray-600);cursor:pointer;transition:background 0.2s}.data-table td:hover{background:#f0fdf4}.data-table tr:hover td{background:#f8fafc}.empty-placeholder{text-align:center;padding:60px 20px;color:var(--gray-400)}.empty-placeholder i{font-size:48px;margin-bottom:16px}.table-footer{padding:12px 20px;background:var(--gray-50);border-top:1px solid var(--gray-200);display:flex;justify-content:space-between;font-size:0.7rem;color:var(--gray-500)}.json-validate{margin-top:16px;padding:12px 16px;background:#d1fae5;border-radius:12px;display:flex;align-items:center;gap:10px;color:#065f46;font-size:0.85rem;animation:fadeIn 0.3s ease}.info-footer{margin-top:24px;background:var(--gray-50);border-radius:20px;padding:20px}.info-footer-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.info-footer-steps{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px}.step-item{display:flex;gap:12px;align-items:flex-start}.step-number{width:32px;height:32px;background:#059669;color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.step-content h4{font-size:0.85rem;margin-bottom:4px}.step-content p{font-size:0.7rem;color:var(--gray-500)}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.table-container.fullscreen{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000;background:white;padding:20px;overflow:auto}.table-container.fullscreen .data-table{font-size:14px}@media (max-width:1024px){.json-excel-container{grid-template-columns:1fr}.info-footer-steps{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.stats-cards{gap:12px}.stat-card{padding:12px 16px}.stat-value{font-size:1.2rem}.mode-buttons{flex-wrap:wrap}.export-buttons{flex-direction:column}.info-footer-steps{grid-template-columns:1fr}.table-footer{flex-direction:column;gap:8px;text-align:center}}