.collapsible-section[data-astro-cid-itucbha3]{background:#fff;border:1px solid #e5e7eb;border-radius:12px;margin:2.5rem 0;transition:all .2s;overflow:hidden;box-shadow:0 1px 3px #0000001a}.collapsible-section[data-astro-cid-itucbha3]:hover{border-color:#d1d5db;box-shadow:0 4px 12px #00000014}.collapsible-header[data-astro-cid-itucbha3]{cursor:pointer;text-align:left;background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%);border:none;justify-content:space-between;align-items:center;width:100%;padding:1.75rem 2rem;transition:all .2s;display:flex;position:relative}.collapsible-header[data-astro-cid-itucbha3]:before{content:"";opacity:0;background:linear-gradient(90deg,#3b82f6,#8b5cf6,#06b6d4);height:3px;transition:opacity .2s;position:absolute;top:0;left:0;right:0}.collapsible-header[data-astro-cid-itucbha3]:hover{background:linear-gradient(135deg,#f1f5f9 0%,#e2e8f0 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h3{color:#2a2a2a;margin-top:1.5rem;margin-bottom:1rem;font-size:1.25rem;font-weight:600;line-height:1.4}.calc-content-section p{color:#444;margin-bottom:1rem;font-size:1rem;line-height:1.7}.calc-content-section ul,.calc-content-section ol{margin-bottom:1rem;margin-left:1.5rem}.calc-content-section li{color:#444;margin-bottom:.5rem;font-size:1rem;line-height:1.7}.calc-intro{color:#555;margin-bottom:2rem;padding:0 1rem;font-size:1.125rem;line-height:1.6}.features-grid{grid-template-columns:1fr;gap:1.5rem;margin:2rem 0;display:grid}.feature-card{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:1.5rem;transition:box-shadow .2s}.feature-card:hover{box-shadow:0 4px 12px #0000001a}.feature-icon{margin-bottom:.75rem;font-size:2rem;display:block}.feature-title{color:#1a1a1a;margin-bottom:.5rem;font-size:1.125rem;font-weight:600}.feature-description{color:#555;font-size:.9375rem;line-height:1.6}.examples-container{flex-direction:column;gap:2rem;margin:2rem 0;display:flex}.example-card{background:#f9f9f9;border-left:4px solid #1976d2;border-radius:4px;padding:1.5rem}.example-title{color:#1976d2;margin-bottom:1rem;font-size:1.25rem;font-weight:600}.example-problem{color:#333;margin-bottom:.5rem;font-weight:600}.example-steps{color:#333;margin-top:1rem;margin-bottom:.5rem;font-weight:600}.example-card ol{margin-bottom:1rem;margin-left:1.5rem}.example-card li{color:#444;margin-bottom:.5rem}.example-result{color:#0d47a1;background:#e3f2fd;border-radius:4px;margin-top:1rem;padding:.75rem;font-weight:600}.example-explanation{color:#555;margin-top:1rem;font-style:italic;line-height:1.6}.tips-container{flex-direction:column;gap:1.25rem;margin:2rem 0;display:flex}.tip-card{background:#fff;border:1px solid #e0e0e0;border-radius:6px;padding:1.25rem 1.25rem 1.25rem 3rem;position:relative}.tip-card:before{content:"✓";color:#4caf50;font-size:1.25rem;font-weight:700;position:absolute;top:1.25rem;left:1rem}.tip-title{color:#1a1a1a;margin-bottom:.5rem;font-size:1.0625rem;font-weight:600}.tip-content{color:#555;font-size:.9375rem;line-height:1.6}.faq-container{margin:2rem 0}.faq-item{border-bottom:1px solid #e0e0e0;margin-bottom:2rem;padding-bottom:2rem}.faq-item:last-child{border-bottom:none}.faq-question{color:#1a1a1a;margin-bottom:1rem;font-size:1.1875rem;font-weight:600;line-height:1.4}.faq-answer{color:#444;font-size:1rem;line-height:1.7}.education-container{margin:2rem 0}.education-subsection{margin-bottom:2rem}.education-title{color:#1a1a1a;margin-bottom:1rem;font-size:1.25rem;font-weight:600}.education-content{color:#444;font-size:1rem;line-height:1.7}.complete-feature-list{margin-left:0;padding-left:0;list-style:none}.complete-feature-list li{margin-bottom:.75rem;padding-left:1.5rem;position:relative}.complete-feature-list 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#00000014}.related-calc-icon{background:#f5f5f5;border-radius:50%;justify-content:center;align-items:center;min-width:3rem;height:3rem;margin-right:1.25rem;font-size:2rem;display:flex}.related-calc-info{flex:1}.related-calc-name{color:#1a1a1a;margin-top:0;margin-bottom:.25rem;font-size:1.125rem;font-weight:600}.related-calc-desc{color:#555;margin:0;font-size:.875rem;line-height:1.5}@media (width>=768px){.related-calculators-grid{grid-template-columns:repeat(2,1fr)}}@media (width>=1024px){.related-calculators-grid{grid-template-columns:repeat(2,1fr);gap:2rem}}