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option{background-color:var(--bg-card);color:var(--text-primary)}.unit-select:hover{color:var(--text-secondary)}.input-hint{color:var(--text-muted);margin-top:4px;font-size:.7rem;font-style:italic}.circuit-visual-container{background:var(--bg-dark);border:1px solid var(--border-subtle);box-sizing:border-box;border-radius:6px;justify-content:center;align-items:center;width:100%;min-height:280px;margin-top:0;padding:15px;display:flex}svg{width:100%;height:100%;display:block}svg text{font-family:Roboto Mono,Consolas,monospace;font-weight:600}.power-stats-row{border-top:1px solid var(--border-subtle);justify-content:space-between;gap:15px;margin-top:12px;padding:12px 0;display:flex}.power-metric{color:var(--text-secondary);align-items:center;gap:6px;font-size:.85rem;display:flex}.power-value{color:var(--text-primary);font-family:Roboto 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summary{cursor:pointer;justify-content:space-between;align-items:center;list-style:none;transition:color .3s;display:flex;color:var(--text-primary)!important;background:0 0!important;border:none!important;padding:16px 20px!important;font-size:.9rem!important}.faq-item summary:after{content:"+";color:var(--text-muted);font-size:1.25rem;font-weight:400}.faq-item[open] summary:after{content:"-"}.faq-item summary:hover{color:var(--signal-yellow)!important}.faq-item p{line-height:1.6;color:var(--text-secondary)!important;background:0 0!important;border:none!important;margin:0!important;padding:0 20px 20px!important;font-size:.85rem!important}details[open].faq-item{border-color:var(--signal-yellow)!important;background:#e6c2290d!important}@media (width<=768px){.calculator-wrapper{flex-direction:column}.input-card{max-width:none}.card{box-sizing:border-box;width:100%}.power-stats-row{flex-direction:column;gap:8px}}@media 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Mono,Consolas,monospace;font-size:.75rem;line-height:1.5}.stats-grid{grid-template-columns:1fr 1fr;gap:8px;margin:10px 0;display:grid}.stat-item{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:6px;padding:8px 12px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px;font-size:.68rem;display:block}.stat-value{color:var(--text-primary);font-family:Roboto Mono,Consolas,monospace;font-size:.92rem;font-weight:600;display:block}.alt-pairs{border-top:1px solid var(--border-subtle);margin:10px 0 4px;padding-top:10px}.alt-pairs-title{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:8px;font-size:.72rem;font-weight:600}.alt-table{border-collapse:collapse;width:100%;font-family:Roboto Mono,Consolas,monospace;font-size:.82rem}.alt-table th{text-align:left;color:var(--text-muted);border-bottom:1px solid var(--border-subtle);text-transform:uppercase;letter-spacing:.3px;padding:4px 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