:root{--primary-blue: #0066FF;--primary-light: #E6F0FF;--white: #FFFFFF;--gray-100: #F3F4F6;--gray-200: #E5E7EB;--gray-300: #D1D5DB;--gray-400: #9CA3AF;--gray-500: #6B7280;--gray-600: #4B5563;--gray-700: #374151;--gray-800: #1F2937;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--gray-100);color:var(--gray-800);line-height:1.5}.calculator-container{max-width:1200px;margin:2rem auto;padding:0 1rem}.calculator-card{background-color:var(--white);border-radius:1rem;padding:2rem;margin-bottom:2rem;box-shadow:var(--shadow-md)}.section-title{color:var(--gray-800);font-size:1.5rem;font-weight:600;margin-bottom:1.5rem;text-align:center}.input-group{margin-bottom:1.5rem}.input-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.input-label span{color:var(--gray-700);font-weight:500}.input-label input[type=number]{width:150px;padding:.5rem;border:1px solid var(--gray-300);border-radius:.5rem;font-size:1rem;color:var(--gray-800);background-color:var(--white);transition:border-color .2s ease}.input-label input[type=number]:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 2px #0066ff1a}.slider-container{position:relative;height:24px;padding:0 8px}input[type=range]{-webkit-appearance:none;width:100%;height:4px;border-radius:2px;background:var(--gray-200);outline:none;position:absolute;top:50%;transform:translateY(-50%)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--primary-blue);cursor:pointer;transition:background-color .2s ease;box-shadow:var(--shadow-sm)}input[type=range]::-webkit-slider-thumb:hover{background:#0052cc}.calculate-button{width:100%;padding:1rem;background-color:var(--primary-blue);color:var(--white);border:none;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .2s ease;margin-top:1rem}.calculate-button:hover{background-color:#0052cc}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-bottom:1.5rem}.result-card{background-color:var(--primary-light);padding:1.5rem;border-radius:.5rem;text-align:center}.result-label{color:var(--gray-600);font-size:.875rem;font-weight:500;margin-bottom:.5rem}.result-value{color:var(--gray-800);font-size:1.25rem;font-weight:600}.final-results{background-color:var(--primary-light);padding:2rem;border-radius:.5rem;margin-top:2rem}.final-result-item{padding:1rem 0;border-bottom:1px solid var(--gray-200);display:flex;justify-content:space-between;align-items:center}.final-result-item:first-child{padding-top:0}.final-result-item.subtotal{border-bottom:2px solid var(--gray-300);font-weight:500}.final-result-item.negative{color:#dc2626;padding-top:1rem}.final-result-item.negative .result-value{color:#dc2626}.final-result-total{padding-top:1.5rem;margin-top:1.5rem;border-top:2px solid var(--gray-300)}.final-result-total .result-label{font-size:1.125rem;font-weight:600;color:var(--gray-700)}.final-result-total .result-value{font-size:1.5rem;font-weight:700;color:var(--primary-blue)}.final-result-total .result-value.negative{color:#dc2626}