.refi-calculator-container{--refi-primary: #7c3aed;--refi-secondary: #8b5cf6;--refi-accent: #a78bfa;--refi-light: #f5f3ff;--refi-bg: #faf5ff;--refi-text: #1f2937;--refi-text-light: #6b7280;--refi-success: #10b981;--refi-danger: #ef4444;--refi-border: #e5e7eb;--refi-radius: 12px;--refi-shadow: 0 4px 6px -1px rgba(0,0,0,.1);--refi-shadow-lg: 0 10px 25px -5px rgba(0,0,0,.15);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.refi-title{font-size:2rem;font-weight:800;color:var(--refi-primary);margin:0 0 .5rem}.refi-description{color:var(--refi-text-light);font-size:1.1rem;margin:0}.refi-formula-container{background:linear-gradient(135deg,var(--refi-bg) 0%,var(--refi-light) 100%);border-radius:var(--refi-radius);padding:1.5rem;margin-bottom:1.5rem;border:1px solid var(--refi-border)}.refi-formula-title{font-size:1.1rem;font-weight:700;color:var(--refi-primary);margin:0 0 1rem;text-align:center}.refi-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.refi-formula-card{background:#fff;border-radius:8px;padding:1rem;text-align:center;box-shadow:var(--refi-shadow)}.refi-formula-label{font-size:.85rem;font-weight:600;color:var(--refi-secondary);margin:0 0 .5rem}.refi-formula-math{font-size:.95rem;color:var(--refi-text);overflow-x:auto}.refi-form{background:#fff;border-radius:var(--refi-radius);padding:1.5rem;box-shadow:var(--refi-shadow);margin-bottom:1.5rem}.refi-form-section{margin-bottom:1.5rem}.refi-form-section-title{font-size:1rem;font-weight:700;color:var(--refi-primary);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:2px solid var(--refi-light)}.refi-input-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem}.refi-input-group{display:flex;flex-direction:column}.refi-label{font-size:.85rem;font-weight:600;color:var(--refi-text);margin-bottom:.5rem}.refi-input-wrapper{position:relative;display:flex;align-items:center}.refi-input-prefix{position:absolute;left:1rem;color:var(--refi-text-light);font-weight:600}.refi-input-suffix{position:absolute;right:1rem;color:var(--refi-text-light);font-weight:600}.refi-input{width:100%;padding:.75rem 1rem;border:2px solid var(--refi-border);border-radius:8px;font-size:1rem;transition:all .2s ease}.refi-input.with-prefix{padding-left:2rem}.refi-input.with-suffix{padding-right:2.5rem}.refi-input:focus{outline:none;border-color:var(--refi-primary);box-shadow:0 0 0 3px #7c3aed1a}.refi-button-group{display:flex;gap:1rem}.refi-calculate-btn{flex:1;padding:1rem;background:linear-gradient(135deg,var(--refi-primary),var(--refi-secondary));color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s ease}.refi-calculate-btn:hover{transform:translateY(-2px);box-shadow:var(--refi-shadow-lg)}.refi-reset-btn{padding:1rem 1.5rem;background:var(--refi-border);color:var(--refi-text);border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.refi-reset-btn:hover{background:#d1d5db}.refi-results{background:linear-gradient(135deg,var(--refi-primary),var(--refi-secondary));border-radius:var(--refi-radius);padding:1.5rem;margin-bottom:2rem}.refi-results-title{color:#fff;font-size:1.25rem;font-weight:700;margin:0 0 1rem;text-align:center}.refi-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.75rem}.refi-result-card{background:#ffffff26;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:1rem;text-align:center}.refi-result-card.primary{background:#fffffff2}.refi-result-card.primary .result-label,.refi-result-card.primary .result-value{color:var(--refi-primary)}.refi-result-card.primary.positive .result-value{color:var(--refi-success)}.refi-result-card.primary.negative .result-value{color:var(--refi-danger)}.refi-result-card.highlight{background:#ffffffe6}.refi-result-card.highlight .result-label,.refi-result-card.highlight .result-value{color:var(--refi-secondary)}.refi-result-card .result-label{display:block;font-size:.75rem;color:#ffffffe6;margin-bottom:.25rem;font-weight:500}.refi-result-card .result-value{display:block;font-size:1.15rem;font-weight:800;color:#fff}.refi-content{margin-top:2rem}.refi-content-section{margin-bottom:2.5rem}.refi-section-title{font-size:1.5rem;font-weight:700;color:var(--refi-primary);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--refi-light)}.refi-paragraph{color:var(--refi-text);line-height:1.7;margin:0 0 1rem}.refi-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:1.5rem 0}.refi-feature-card{background:var(--refi-bg);border-radius:10px;padding:1.25rem;text-align:center;border:1px solid var(--refi-border)}.refi-feature-card .feature-icon{font-size:2rem;display:block;margin-bottom:.5rem}.refi-feature-card .feature-title{font-size:1rem;font-weight:700;color:var(--refi-primary);margin:0 0 .5rem}.refi-feature-card .feature-desc{font-size:.85rem;color:var(--refi-text-light);margin:0}.refi-tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1rem}@media (max-width: 768px){.refi-tips-grid{grid-template-columns:1fr}}.refi-tip-card{background:#f8fafc;border-radius:var(--refi-radius);padding:1rem;border-left:4px solid var(--refi-primary)}.refi-tip-header{display:flex;align-items:center;gap:.5rem}.refi-tip-icon{font-size:1.25rem}.refi-tip-title{font-size:.95rem;font-weight:700;color:var(--refi-text);margin:0}.refi-tip-text{font-size:.9rem;color:var(--refi-text-light);margin:0;line-height:1.6}.refi-faqs{margin-top:1rem}.refi-faq{background:#f8fafc;border-radius:var(--refi-radius);margin-bottom:.75rem;border:1px solid var(--refi-border);overflow:hidden}.refi-faq[open]{background:#fff}.refi-faq-question{padding:1rem 1.25rem;font-weight:600;color:var(--refi-text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none}.refi-faq-question::-webkit-details-marker{display:none}.refi-faq-question:after{content:"+";font-size:1.25rem;color:var(--refi-primary);font-weight:700;transition:transform .2s ease}.refi-faq[open] .refi-faq-question:after{transform:rotate(45deg)}.refi-faq-answer{padding:0 1.25rem 1rem;color:var(--refi-text-light);line-height:1.6;margin:0;font-size:.95rem}@media (max-width: 640px){.refi-title{font-size:1.5rem}.refi-formula-grid,.refi-input-grid{grid-template-columns:1fr}.refi-button-group{flex-direction:column}.refi-results-grid{grid-template-columns:repeat(2,1fr)}}