.calculator-main{max-width:1120px;margin:auto;padding:26px 20px 50px}.calculator-main .hero{display:block;padding:30px;border:1px solid var(--line);border-left:6px solid var(--gold);border-radius:18px;background:white;min-height:0;box-shadow:var(--shadow-soft)}.calculator-main .hero h1{font-size:clamp(1.8rem,5vw,3rem);line-height:1.15;margin:18px 0 12px}.calculator-main .hero p{max-width:none}.calculator-main .unit-badges{display:flex;gap:12px;flex-wrap:wrap}.calculator-main .unit-badges span{background:var(--navy);color:white;border-radius:8px;padding:6px 16px;font-weight:800}.calculator-main .calculator-panel{background:white;border-radius:18px;padding:28px;margin:24px 0;border-top:4px solid var(--gold);box-shadow:var(--shadow-soft)}.calculator-main .calculator-layout{display:grid;grid-template-columns:1fr 1.25fr;gap:28px}.calculator-main .calc-inputs{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}.calculator-main label{font-weight:750;display:block;margin-bottom:9px}.calculator-main input,.calculator-main select{width:100%;min-width:0;padding:13px;font:inherit;border:1px solid #a5bcc5;border-radius:9px;background:white;color:var(--ink)}.calculator-main button{font:inherit;font-weight:700;padding:11px 16px;border:1px solid #a5bcc5;border-radius:9px;color:var(--navy);background:white;cursor:pointer}.calculator-main button:hover{background:var(--blue-light)}.calculator-main .primary{background:var(--navy);color:white}.calculator-main .primary:hover{background:var(--blue)}.calculator-main .calc-actions,.calculator-main .examples{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.calculator-main .results{display:grid;grid-template-columns:1fr 1fr;gap:14px}.calculator-main .result-card{background:var(--blue-light);border:2px solid var(--line);border-radius:12px;padding:20px;min-width:0}.calculator-main .result-card.known{background:#fff8e7;border-color:#e6c570}.calculator-main .result-card h3{margin:0;font-size:1rem;color:var(--navy)}.calculator-main .result-card output{display:block;font-weight:850;font-size:clamp(1.2rem,2.5vw,1.8rem);margin-top:12px;overflow-wrap:anywhere}.calculator-main .formula-strip{padding:16px;background:#fff4d4;border-radius:12px;font-family:monospace;min-height:52px;margin-top:20px}.calculator-main #formulas:empty::before{content:'P = V × I • V = I × R'}.calculator-main .help-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.calculator-main .help-card{background:white;border-radius:14px;border-top:3px solid var(--gold);padding:20px}.calculator-main .help-card strong{color:var(--navy)}.calculator-main .scope{padding:18px;background:var(--blue-light);border-left:4px solid var(--blue);border-radius:12px}.calculator-main .error{color:#a12216;min-height:1.5em;margin:12px 0}.calculator-main :focus-visible{outline:3px solid var(--gold-dark);outline-offset:3px}.calculator-main h1,.calculator-main h2,.calculator-main label,.calculator-main button{overflow-wrap:anywhere}.calculator-promo{background:var(--blue-light);border:1px solid var(--line);border-radius:18px;padding:24px;margin:24px auto;max-width:var(--max)}@media(max-width:750px){.calculator-main .calculator-layout{grid-template-columns:1fr}.calculator-main .help-grid{grid-template-columns:1fr 1fr}.calculator-main .calculator-panel{padding:18px}}@media(max-width:420px){.calculator-main .calc-inputs,.calculator-main .results,.calculator-main .help-grid{grid-template-columns:1fr}.calculator-main{padding:20px 14px}}

.calculator-main [hidden]{display:none!important}.wire-advanced,.wire-method{margin-top:20px;padding:16px;border:1px solid var(--line);border-radius:10px}.calculator-main summary{cursor:pointer;font-weight:750;color:var(--navy)}.calculator-main input[type=checkbox]{width:auto;margin-right:8px}.calculator-main .wire-pass{border-left-color:#267448}.calculator-main .wire-fail{border-left-color:#b03725;background:#fff0e9}.calculator-jump a{padding:10px 14px;background:white;border:1px solid var(--line);border-radius:9px}#wire-size{scroll-margin-top:20px}