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0.3s;display:flex;align-items:center;gap:5px}.downlaodimage{background-color:#017180;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer;font-weight:700;transition:background-color 0.3s;display:flex;align-items:center;gap:5px}.downlaodpdf{background-color:#865000;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer;font-weight:700;transition:background-color 0.3s;display:flex;align-items:center;gap:5px}button.printpage{background-color:#004f8d;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer;font-weight:700;transition:background-color 0.3s;display:flex;align-items:center;gap:5px}button.fivepage:hover,.downlaodimage:hover,.downlaodpdf:hover,.printpage:hover{opacity:.8}.control-panel h2.text-capitalize.font-normal.align-center{padding:0 0 15px 0}.btn:disabled{opacity:.6;cursor:not-allowed}.worksheet{background-color:#fff;padding:20px;border:1px solid #ddd;margin-bottom:20px;page-break-after:always}.worksheet-header{display:flex;justify-content:space-between;margin-bottom:20px;border-bottom:1px solid #ddd;padding-bottom:10px}.worksheet-title{font-size:24px;font-weight:700;text-align:center;margin-bottom:20px;color:#000}.name-date{display:flex;gap:20px;justify-content:space-between;width:100%;color:#000;font-weight:600}.name-date input{border:none;border-bottom:1px solid #000;padding:0 5px;width:150px}.problems-table{width:100%;border-collapse:collapse;margin-bottom:20px}.problems-table td{padding:15px 10px;text-align:left;border:1px solid #ddd;height:50px;font-size:18px;vertical-align:middle}.horizontal-problem{display:flex;align-items:center;font-family:'Arial',sans-serif}.problem-text{margin-right:10px;font-weight:600}.answer-line{border-bottom:1px solid #000;min-width:100px;display:inline-block;position:relative;top:9px}.answer-text{color:green;font-weight:600;margin-left:10px}.worksheet-footer{text-align:center;margin-top:20px;font-style:italic;color:#666}.tabs{display:flex;margin-bottom:20px;justify-content:center;margin-top:23px}.tab{padding:10px 20px;cursor:pointer;background-color:#f1f1f1;border:1px solid #ddd;border-bottom:none;margin-right:5px}.tab.active{background-color:#fff;font-weight:700}.tab-content{display:none}.tab-content.active{display:block;width:100%;min-width:800px;max-width:800px;margin:0 auto}.page-selector{display:flex;gap:10px;margin-bottom:20px;justify-content:center}.page-btn{padding:8px 15px;border:1px solid #ddd;background-color:#fff;cursor:pointer;border-radius:4px;transition:all 0.3s}.page-btn.active{background-color:#004f8d;color:#fff;border-color:#004f8d}.page-btn:hover:not(.active){background-color:#f1f1f1}.loading{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgb(0 0 0 / .7);z-index:1000;justify-content:center;align-items:center;flex-direction:column}.loading.active{display:flex}.spinner{border:5px solid #f3f3f3;border-top:5px solid #3498db;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin-bottom:20px}.loading-text{color:#fff;font-size:18px}.error-message{display:none;background-color:#f44336;color:#fff;padding:15px;border-radius:5px;margin-bottom:20px;text-align:center}.error-message.active{display:block}.success-message{display:block;background-color:#056209;color:#fff;padding:8px;border-radius:5px;text-align:center;margin-top:20px;width:100%;min-width:100%;max-width:100%;margin:16px auto}.success-message.active{display:block}.range-display{background-color:#1313141f;padding:10px;border-radius:4px;margin-top:5px;font-size:14px;color:#000}.range-display.error{background-color:#ffebee;color:#c62828}.range-display.warning{background-color:#fff8e1;color:#ff8f00}.field-error{font-size:12px;color:#f44336;margin-top:5px;display:none}.field-error.active{display:block}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}@media print{.control-panel{display:none}.tabs{display:none}.page-selector{display:none}.tab-content{display:block!important}.worksheet{page-break-after:always}}@media (max-width:600px){.range-inputs{grid-template-columns:1fr}.button-group{flex-direction:column}.btn{width:100%;justify-content:center}}