:root{background-color:#000}.calculator-container{color:#fff;background-color:#1a202c;min-height:100vh;padding:2rem;font-family:Arial,sans-serif}.calculator-card{background-color:#2d3748;border:1px solid #4a5568;border-radius:.5rem;width:95%;max-width:1200px;margin:0 auto;box-shadow:0 4px 6px #0000001a}.calculator-content{flex-direction:column;gap:1.5rem;padding:1.5rem;display:flex}.header-fields{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;display:grid}.bottom-fields>div{flex-direction:row;gap:1rem;display:flex}label{margin-bottom:.25rem;font-size:.875rem}input{color:#fff;background-color:#4a5568;border:1px solid #718096;border-radius:.25rem;padding:.5rem;font-size:.875rem}input:focus{border-color:#63b3ed;outline:none;box-shadow:0 0 0 3px #63b3ed4d}.table-section{flex-direction:column;gap:1rem;display:flex}.section-header{justify-content:space-between;align-items:center;display:flex}h2{font-size:1.125rem;font-weight:600}.rows{flex-direction:column;gap:.75rem;display:flex}.row{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));align-items:center;gap:.5rem;padding:.5rem;display:grid}.total-row{grid-template-columns:6fr 1fr;align-items:center;gap:1rem;font-weight:600;display:grid}.total-row>div:first-child{text-align:right}.bottom-fields{flex-direction:column;gap:1rem;display:flex}.action-buttons{flex-wrap:wrap;justify-content:center;gap:.5rem;display:flex}button{appearance:none;font:inherit;color:inherit;cursor:pointer;background:0 0;border:none;border-radius:.25rem;outline:none;justify-content:center;align-items:center;min-width:fit-content;margin:0;padding:.5rem;font-size:.875rem;font-weight:500;transition:background-color .2s;display:inline-flex}.add-row-btn{color:#48bb78;background-color:#0000;border:1px solid #48bb78;width:1rem;height:2.5rem;padding:.5rem;display:flex}.add-row-btn:hover{color:#fff;background-color:#48bb78}.delete-row-btn:hover{color:#fff;background-color:#bb1d1d}.delete-row-btn{color:#bb1d1d;background-color:#0000;border:1px solid #bb1d1d;width:1rem;height:2.5rem;padding:.5rem;display:flex}.export-btn{color:#fff;background-color:#006bcf;border:none;justify-content:center;align-items:center;gap:.5rem;display:flex}.export-btn:hover{background-color:#2a578f}.import-btn{color:#fff;background-color:#27b663;border:none}.import-btn:hover{background-color:#2a8f5c}.clean-btn{color:#fff;background-color:#c73434;border:none}.clean-btn:hover{background-color:#d61515}.additional-row{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.additional-row input[type=number]{width:120px}.add-number-btn{color:#48bb78;cursor:pointer;background-color:#0000;border:none;padding:.25rem}.add-number-btn:hover{color:#38a169}.theX{text-align:center}.add-bottom-row-btn{background-color:#0000;width:2rem;height:2rem}.align-right{justify-content:flex-end;gap:1.5rem;display:flex}.bottom-row{flex-direction:column;gap:.5rem;display:flex}input::placeholder{color:#bbb;opacity:1}input::-webkit-input-placeholder{color:#bbb}input::placeholder{color:#bbb}input:-ms-placeholder-shown{color:#bbb}@media screen and (width<=768px){.calculator-container{padding:1rem}.calculator-content{gap:1rem;padding:1rem}.bottom-fields>div{flex-direction:column}.total-row{text-align:center;grid-template-columns:1fr}.total-row>div:first-child{text-align:center}button{width:100%;margin:.25rem 0}.additional-row{flex-direction:column;align-items:stretch}.additional-row input[type=number]{width:100%}.align-right{justify-content:center}}@media screen and (width<=480px){input{box-sizing:border-box;width:100%}.calculator-container{padding:.5rem}.calculator-content{padding:.75rem}h2{font-size:1rem}}.print-container{max-width:800px;margin:0 auto;padding:20px}.print-actions{justify-content:space-between;margin-bottom:20px;display:flex}.back-btn,.print-btn{cursor:pointer;background-color:#f0f0f0;border:none;border-radius:5px;align-items:center;gap:5px;padding:10px 15px;font-size:16px;display:flex}.print-content{background-color:#fff;border-radius:5px;padding:20px;box-shadow:0 2px 4px #0000001a}h1{margin-bottom:20px;font-size:24px}h2{margin-top:30px;margin-bottom:10px;font-size:20px}table{border-collapse:collapse;width:100%;margin-bottom:20px}th,td{text-align:left;border:1px solid #ddd;padding:8px}th{background-color:#f2f2f2;font-weight:700}@media print{.print-actions{display:none}.print-content{box-shadow:none}}