.fact-calculator{--fact-primary: #ea580c;--fact-primary-dark: #c2410c;--fact-secondary: #f97316;--fact-accent: #fdba74;--fact-bg: #fff7ed;--fact-card-bg: #ffffff;--fact-text: #7c2d12;--fact-text-muted: #c2410c;--fact-border: #fed7aa;--fact-shadow: 0 4px 20px rgba(234, 88, 12, .12);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.fact-header{text-align:center;margin-bottom:2rem}.fact-title{font-size:2rem;font-weight:800;color:var(--fact-primary);margin:0 0 .5rem}.fact-description{color:var(--fact-text-muted);font-size:1.1rem;margin:0}.fact-formula-container{background:linear-gradient(135deg,var(--fact-bg) 0%,#ffedd5 100%);border-radius:16px;padding:1.5rem;margin-bottom:2rem;border:1px solid var(--fact-border)}.fact-formula-title{font-size:1.1rem;font-weight:700;color:var(--fact-primary);margin:0 0 1rem;text-align:center}.fact-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.fact-formula-card{background:var(--fact-card-bg);border-radius:12px;padding:1rem;text-align:center;box-shadow:0 2px 8px #0000000f}.fact-formula-label{display:block;font-size:.85rem;font-weight:600;color:var(--fact-text-muted);margin-bottom:.5rem}.fact-formula-math{font-size:.95rem;color:var(--fact-text);overflow-x:auto;padding:.25rem 0}.fact-form-container{background:var(--fact-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--fact-shadow);margin-bottom:2rem}.fact-form{display:flex;flex-direction:column;gap:1.25rem}.fact-input-group{display:flex;flex-direction:column;gap:.5rem}.fact-label{font-weight:600;font-size:.9rem;color:var(--fact-text)}.fact-input-wrapper{position:relative;display:flex;align-items:center}.fact-input-suffix{position:absolute;right:1rem;color:var(--fact-primary);font-weight:800;font-size:1.5rem}.fact-input{width:100%;padding:1rem 2.5rem 1rem 1rem;border:2px solid var(--fact-border);border-radius:10px;font-size:1.5rem;font-weight:700;text-align:center;transition:all .2s ease;background:var(--fact-bg)}.fact-input:focus{outline:none;border-color:var(--fact-primary);background:#fff;box-shadow:0 0 0 4px #ea580c1a}.fact-buttons{display:flex;gap:1rem}.fact-btn{flex:1;padding:1rem;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s ease}.fact-btn-primary{background:linear-gradient(135deg,var(--fact-primary) 0%,var(--fact-secondary) 100%);color:#fff;box-shadow:0 4px 15px #ea580c4d}.fact-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ea580c66}.fact-btn-secondary{background:var(--fact-bg);color:var(--fact-text-muted);border:2px solid var(--fact-border)}.fact-btn-secondary:hover{border-color:var(--fact-primary);color:var(--fact-primary)}.fact-results{background:var(--fact-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--fact-shadow);margin-bottom:2rem}.fact-results-title{font-size:1.25rem;font-weight:700;color:var(--fact-primary);margin:0 0 1.5rem;text-align:center}.fact-main-result{text-align:center;background:linear-gradient(135deg,var(--fact-primary) 0%,var(--fact-secondary) 100%);border-radius:16px;padding:2rem;margin-bottom:1.5rem}.fact-main-label{display:block;font-size:2rem;font-weight:800;color:#ffffffe6;margin-bottom:.5rem}.fact-main-value{font-size:1.25rem;font-weight:600;color:#fff;word-break:break-all}.fact-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1.5rem}.fact-summary-card{background:var(--fact-bg);border-radius:12px;padding:1rem;text-align:center}.fact-summary-label{display:block;font-size:.75rem;font-weight:600;color:var(--fact-text-muted);margin-bottom:.25rem}.fact-summary-value{font-size:1.25rem;font-weight:800;color:var(--fact-text)}.fact-expansion{background:var(--fact-bg);border-radius:12px;padding:1rem;font-family:Courier New,monospace;font-size:.9rem;color:var(--fact-text);text-align:center;word-break:break-all}.fact-content{margin-top:3rem}.fact-content-section{margin-bottom:2.5rem}.fact-content-title{font-size:1.5rem;font-weight:700;color:var(--fact-text);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--fact-primary)}.fact-content-text{color:var(--fact-text-muted);line-height:1.7;margin:0 0 1rem}.fact-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem}.fact-feature-card{background:var(--fact-bg);border-radius:12px;padding:1.25rem;text-align:center}.fact-feature-icon{font-size:2rem;display:block;margin-bottom:.75rem}.fact-feature-title{font-size:1rem;font-weight:700;color:var(--fact-text);margin:0 0 .5rem}.fact-feature-desc{font-size:.85rem;color:var(--fact-text-muted);margin:0;line-height:1.5}.fact-table-wrapper{overflow-x:auto;border-radius:12px;box-shadow:0 2px 8px #0000000f;margin-top:1.5rem}.fact-table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem}.fact-table th{background:var(--fact-primary);color:#fff;padding:.875rem 1rem;text-align:left;font-weight:600}.fact-table td{padding:.75rem 1rem;border-bottom:1px solid var(--fact-border)}.fact-table tr:hover{background:var(--fact-bg)}.fact-table-n{font-weight:700;color:var(--fact-primary)}.fact-tips-grid{display:grid;gap:1rem;margin-top:1.5rem}.fact-tip-card{display:flex;gap:1rem;background:var(--fact-card-bg);border-radius:12px;padding:1.25rem;box-shadow:0 2px 8px #0000000f;border-left:4px solid var(--fact-primary)}.fact-tip-icon{font-size:1.5rem;flex-shrink:0}.fact-tip-content{flex:1}.fact-tip-title{font-size:1rem;font-weight:700;color:var(--fact-text);margin:0 0 .5rem}.fact-tip-text{font-size:.9rem;color:var(--fact-text-muted);margin:0;line-height:1.6}.fact-faqs{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.fact-faq-item{background:var(--fact-card-bg);border-radius:12px;padding:1.25rem;box-shadow:0 2px 8px #0000000f}.fact-faq-question{font-size:1rem;font-weight:700;color:var(--fact-primary);margin:0 0 .75rem}.fact-faq-answer{font-size:.9rem;color:var(--fact-text-muted);margin:0;line-height:1.6}@media (max-width: 768px){.fact-title{font-size:1.5rem}.fact-formula-grid,.fact-summary-grid,.fact-features-grid{grid-template-columns:1fr}}