.energy-converter{--energy-primary: #dc2626;--energy-secondary: #ef4444;--energy-accent: #fca5a5;--energy-bg: #fef2f2;--energy-card-bg: #ffffff;--energy-text: #7f1d1d;--energy-text-muted: #b91c1c;--energy-border: #fecaca;--energy-shadow: 0 4px 20px rgba(220, 38, 38, .12);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.energy-header{text-align:center;margin-bottom:2rem}.energy-title{font-size:2rem;font-weight:800;color:var(--energy-primary);margin:0 0 .5rem}.energy-description{color:var(--energy-text-muted);font-size:1.1rem;margin:0}.energy-formula-container{background:linear-gradient(135deg,var(--energy-bg) 0%,#fee2e2 100%);border-radius:16px;padding:1.5rem;margin-bottom:2rem;border:1px solid var(--energy-border)}.energy-formula-title{font-size:1.1rem;font-weight:700;color:var(--energy-primary);margin:0 0 1rem;text-align:center}.energy-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.energy-formula-card{background:var(--energy-card-bg);border-radius:12px;padding:1rem;text-align:center}.energy-formula-label{display:block;font-size:.85rem;font-weight:600;color:var(--energy-text-muted);margin-bottom:.5rem}.energy-formula-math{font-size:.9rem;color:var(--energy-text);overflow-x:auto}.energy-form-container{background:var(--energy-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--energy-shadow);margin-bottom:2rem}.energy-form{display:flex;flex-direction:column;gap:1.25rem}.energy-input-row{display:flex;gap:1rem;align-items:flex-end;flex-wrap:wrap}.energy-input-main{flex:1;min-width:150px}.energy-input-group{display:flex;flex-direction:column;gap:.5rem;min-width:160px}.energy-label{font-weight:600;font-size:.9rem;color:var(--energy-text)}.energy-input,.energy-select{width:100%;padding:.875rem 1rem;border:2px solid var(--energy-border);border-radius:10px;font-size:1rem;background:var(--energy-bg)}.energy-input:focus,.energy-select:focus{outline:none;border-color:var(--energy-primary);background:#fff}.energy-swap-btn{width:44px;height:44px;border:2px solid var(--energy-border);border-radius:10px;background:var(--energy-bg);font-size:1.25rem;cursor:pointer;display:flex;align-items:center;justify-content:center}.energy-swap-btn:hover{background:var(--energy-primary);color:#fff;border-color:var(--energy-primary)}.energy-buttons{display:flex;gap:1rem}.energy-btn{flex:1;padding:1rem;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer}.energy-btn-primary{background:linear-gradient(135deg,var(--energy-primary) 0%,var(--energy-secondary) 100%);color:#fff}.energy-btn-secondary{background:var(--energy-bg);color:var(--energy-text-muted);border:2px solid var(--energy-border)}.energy-results{background:var(--energy-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--energy-shadow);margin-bottom:2rem}.energy-results-title{font-size:1.25rem;font-weight:700;color:var(--energy-primary);margin:0 0 1.5rem;text-align:center}.energy-main-result{text-align:center;background:linear-gradient(135deg,var(--energy-primary) 0%,var(--energy-secondary) 100%);border-radius:16px;padding:2rem;margin-bottom:1.5rem}.energy-main-label{display:block;font-size:1rem;color:#ffffffe6;margin-bottom:.5rem}.energy-main-value{font-size:2rem;font-weight:800;color:#fff}.energy-all-units{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.energy-unit-card{background:var(--energy-bg);border-radius:12px;padding:1rem;text-align:center}.energy-unit-label{display:block;font-size:.75rem;font-weight:600;color:var(--energy-text-muted);margin-bottom:.25rem}.energy-unit-value{font-size:1rem;font-weight:800;color:var(--energy-text)}.energy-content{margin-top:3rem}.energy-content-section{margin-bottom:2.5rem}.energy-content-title{font-size:1.5rem;font-weight:700;color:var(--energy-text);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--energy-primary)}.energy-content-text{color:var(--energy-text-muted);line-height:1.7;margin:0 0 1rem}.energy-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem}.energy-feature-card{background:var(--energy-bg);border-radius:12px;padding:1.25rem;text-align:center}.energy-feature-icon{font-size:2rem;display:block;margin-bottom:.75rem}.energy-feature-title{font-size:1rem;font-weight:700;color:var(--energy-text);margin:0 0 .5rem}.energy-feature-desc{font-size:.85rem;color:var(--energy-text-muted);margin:0}.energy-table-wrapper{overflow-x:auto;border-radius:12px;margin-top:1.5rem}.energy-table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem}.energy-table th{background:var(--energy-primary);color:#fff;padding:.875rem 1rem;text-align:left}.energy-table td{padding:.75rem 1rem;border-bottom:1px solid var(--energy-border)}.energy-table-ref{font-weight:700;color:var(--energy-primary)}.energy-tips-grid{display:grid;gap:1rem;margin-top:1.5rem}.energy-tip-card{display:flex;gap:1rem;background:var(--energy-card-bg);border-radius:12px;padding:1.25rem;border-left:4px solid var(--energy-primary)}.energy-tip-icon{font-size:1.5rem}.energy-tip-title{font-size:1rem;font-weight:700;color:var(--energy-text);margin:0 0 .5rem}.energy-tip-text{font-size:.9rem;color:var(--energy-text-muted);margin:0}.energy-faqs{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.energy-faq-item{background:var(--energy-card-bg);border-radius:12px;padding:1.25rem}.energy-faq-question{font-size:1rem;font-weight:700;color:var(--energy-primary);margin:0 0 .75rem}.energy-faq-answer{font-size:.9rem;color:var(--energy-text-muted);margin:0;line-height:1.6}@media (max-width: 768px){.energy-input-row{flex-direction:column}.energy-all-units{grid-template-columns:repeat(2,1fr)}}