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140px);box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:#2d3436}.home-title{font-size:20px;margin-bottom:18px;color:#1f2937}.upload-section{margin-bottom:18px;display:flex;gap:12px;align-items:center}.upload-input{padding:8px 10px;border:1px solid #dfe3e8;background:white;border-radius:6px}.mapping{margin-bottom:20px;background:white;padding:14px;border-radius:8px;box-shadow:0 1px 3px rgba(16,24,40,.05)}.mapping h4{margin:0 0 12px}.mapping-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:10px;gap:10px}.mapping-row{display:flex;align-items:center;gap:10px}.mapping-row span{min-width:110px;color:#374151;font-weight:600}.sheet-wrapper{background:white;border-radius:8px;padding:12px;box-shadow:0 2px 6px rgba(16,24,40,.04)}.controls{display:flex;justify-content:flex-end;margin-top:12px}.btn{padding:8px 12px;border-radius:6px;border:1px solid transparent;cursor:pointer;font-weight:600}.btn-primary{background:#2563eb;color:#fff;border-color:#2563eb}.btn-secondary{background:#f3f4f6;color:#111827;border-color:#e5e7eb}.loading{padding:18px;color:#6b7280}@media (max-width:900px){.home-container{margin-left:16px;margin-right:16px;padding:16px}.mapping-row span{min-width:90px}}body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica Neue,Arial;background:#fafafa;color:#111;padding:0}button{padding:6px 10px;border-radius:6px;border:1px solid #ddd;background:#fff;cursor:pointer}button:hover{filter:brightness(.98)}.popup-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;justify-content:center;align-items:center;z-index:2000}.popup-box{background:#fff;padding:22px 30px;border-radius:10px;width:350px;box-shadow:0 4px 12px rgba(0,0,0,.15);text-align:center}.popup-actions{display:flex;justify-content:space-between;gap:10px;margin-top:20px}.popup-actions button{flex:1 1;padding:10px;font-size:15px;border:none;border-radius:6px;cursor:pointer}.popup-actions button:last-child{background:#e53935;color:white}.popup-actions button:first-child{background:#ddd}.dragger-container{display:flex;flex-direction:column;align-items:center;gap:12px;width:400px;margin:0 auto}.dragger-area{width:100%;padding:40px 20px;border:2px dashed #3b82f6;border-radius:12px;text-align:center;color:#1e40af;font-weight:500;cursor:pointer;transition:.2s;background:#eff6ff}.dragger-area.drag-over{background:#dbeafe;border-color:#2563eb}.upload-btn{padding:10px 20px;background:#2563eb;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:.2s}.upload-btn:hover{background:#1e40af}.upload-btn:disabled{background:#9ca3af;cursor:not-allowed}.loader{width:16px;height:16px;border:2px solid #fff;border-top-color:transparent;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.layout-editor-container{max-width:900px;margin:auto;padding:24px}.editor-card{background:#ffffff;border:1px solid #e2e8f0;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 2px 6px rgba(0,0,0,.05)}.editor-card h3{color:#1a202c}.btn-primary{background:#6b46c1;border-radius:8px;padding:10px 16px;color:white;cursor:pointer;transition:.2s}.btn-primary:hover{background:#553c9a}.btn-green{background:#2f855a;border-radius:8px;padding:10px 14px;color:white;cursor:pointer}.btn-green:hover{background:#276749}.text-input{padding:10px 12px;border:1px solid #cbd5e0;border-radius:8px;width:100%;outline:none}.text-input:focus{border-color:#6b46c1;box-shadow:0 0 0 2px rgba(107,70,193,.2)}.group-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.group-name{font-size:18px;font-weight:700}