.butter-converter{--butter-primary: #ca8a04;--butter-secondary: #eab308;--butter-accent: #fde047;--butter-bg: #fefce8;--butter-card-bg: #ffffff;--butter-text: #713f12;--butter-text-muted: #a16207;--butter-border: #fef08a;--butter-shadow: 0 4px 20px rgba(202, 138, 4, .12);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.butter-header{text-align:center;margin-bottom:2rem}.butter-title{font-size:2rem;font-weight:800;color:var(--butter-primary);margin:0 0 .5rem}.butter-description{color:var(--butter-text-muted);font-size:1.1rem;margin:0}.butter-formula-container{background:linear-gradient(135deg,var(--butter-bg) 0%,#fef9c3 100%);border-radius:16px;padding:1.5rem;margin-bottom:2rem;border:1px solid var(--butter-border)}.butter-formula-title{font-size:1.1rem;font-weight:700;color:var(--butter-primary);margin:0 0 1rem;text-align:center}.butter-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.butter-formula-card{background:var(--butter-card-bg);border-radius:12px;padding:1rem;text-align:center}.butter-formula-label{display:block;font-size:.85rem;font-weight:600;color:var(--butter-text-muted);margin-bottom:.5rem}.butter-formula-math{font-size:.85rem;color:var(--butter-text);overflow-x:auto}.butter-form-container{background:var(--butter-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--butter-shadow);margin-bottom:2rem}.butter-form{display:flex;flex-direction:column;gap:1.25rem}.butter-form-hint{color:var(--butter-text-muted);font-size:.9rem;margin:0;text-align:center}.butter-input-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.butter-input-group{display:flex;flex-direction:column;gap:.5rem}.butter-label{font-weight:600;font-size:.9rem;color:var(--butter-text)}.butter-input{width:100%;padding:.875rem 1rem;border:2px solid var(--butter-border);border-radius:10px;font-size:1rem;background:var(--butter-bg)}.butter-input:focus{outline:none;border-color:var(--butter-primary);background:#fff}.butter-buttons{display:flex;gap:1rem}.butter-btn{flex:1;padding:1rem;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer}.butter-btn-primary{background:linear-gradient(135deg,var(--butter-primary) 0%,var(--butter-secondary) 100%);color:#fff}.butter-btn-secondary{background:var(--butter-bg);color:var(--butter-text-muted);border:2px solid var(--butter-border)}.butter-results{background:var(--butter-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--butter-shadow);margin-bottom:2rem}.butter-results-title{font-size:1.25rem;font-weight:700;color:var(--butter-primary);margin:0 0 1.5rem;text-align:center}.butter-results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem}.butter-result-card{background:var(--butter-bg);border-radius:12px;padding:1rem;text-align:center}.butter-result-primary{background:linear-gradient(135deg,var(--butter-primary) 0%,var(--butter-secondary) 100%)}.butter-result-primary .butter-result-label,.butter-result-primary .butter-result-value{color:#fff}.butter-result-label{display:block;font-size:.75rem;font-weight:600;color:var(--butter-text-muted);margin-bottom:.25rem}.butter-result-value{font-size:1.1rem;font-weight:800;color:var(--butter-text)}.butter-content{margin-top:3rem}.butter-content-section{margin-bottom:2.5rem}.butter-content-title{font-size:1.5rem;font-weight:700;color:var(--butter-text);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--butter-primary)}.butter-content-text{color:var(--butter-text-muted);line-height:1.7;margin:0 0 1rem}.butter-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem}.butter-feature-card{background:var(--butter-bg);border-radius:12px;padding:1.25rem;text-align:center}.butter-feature-icon{font-size:2rem;display:block;margin-bottom:.75rem}.butter-feature-title{font-size:1rem;font-weight:700;color:var(--butter-text);margin:0 0 .5rem}.butter-feature-desc{font-size:.85rem;color:var(--butter-text-muted);margin:0}.butter-table-wrapper{overflow-x:auto;border-radius:12px;margin-top:1.5rem}.butter-table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem}.butter-table th{background:var(--butter-primary);color:#fff;padding:.875rem 1rem;text-align:left}.butter-table td{padding:.75rem 1rem;border-bottom:1px solid var(--butter-border)}.butter-table-ref{font-weight:700;color:var(--butter-primary)}.butter-tips-grid{display:grid;gap:1rem;margin-top:1.5rem}.butter-tip-card{display:flex;gap:1rem;background:var(--butter-card-bg);border-radius:12px;padding:1.25rem;border-left:4px solid var(--butter-primary)}.butter-tip-icon{font-size:1.5rem}.butter-tip-title{font-size:1rem;font-weight:700;color:var(--butter-text);margin:0 0 .5rem}.butter-tip-text{font-size:.9rem;color:var(--butter-text-muted);margin:0}.butter-faqs{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.butter-faq-item{background:var(--butter-card-bg);border-radius:12px;padding:1.25rem}.butter-faq-question{font-size:1rem;font-weight:700;color:var(--butter-primary);margin:0 0 .75rem}.butter-faq-answer{font-size:.9rem;color:var(--butter-text-muted);margin:0;line-height:1.6}@media (max-width: 768px){.butter-input-grid{grid-template-columns:repeat(2,1fr)}}