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