:root{color-scheme:dark;--bg:#0b0d0f;--panel:#15191d;--border:#343d45;--muted:#b6c0ca;--yellow:#ffdc00}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#f4f6f8;font:16px/1.5 Arial,sans-serif}header,main{max-width:1440px;margin:auto;padding:24px 36px}header{display:flex;align-items:center;gap:20px;border-bottom:1px solid var(--border)}a{color:inherit;text-decoration:none}.brand{font-size:30px;font-weight:800;letter-spacing:-1px}.brand span{color:var(--yellow)}.eyebrow{border-left:1px solid var(--border);padding-left:20px;color:var(--muted);font-size:12px;letter-spacing:1px}nav{margin-left:auto;display:flex;align-items:center;gap:24px;font-size:14px}.languages{display:flex}button,input{font:inherit}button{cursor:pointer;border:1px solid var(--border);border-radius:6px;background:transparent;color:inherit;padding:12px 18px;min-height:44px}.languages button{padding:8px 16px}.languages button[aria-pressed=true]{background:var(--yellow);color:#111;border-color:var(--yellow)}h1{font-size:clamp(28px,3vw,42px);letter-spacing:-1px;line-height:1.15;margin:12px 0}h2{font-size:21px;line-height:1.3;margin:0 0 20px}.intro{color:var(--muted);margin:0 0 28px}.panel{border:1px solid var(--border);background:var(--panel);border-radius:8px;padding:24px;margin:0 0 18px;min-width:0}fieldset{min-width:0}legend{font-size:19px;font-weight:700;padding:0 8px}.mode-grid,.layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}.mode{display:flex;align-items:center;gap:14px;border:1px solid var(--border);border-radius:6px;padding:18px;cursor:pointer}.mode:has(input:checked){border-color:var(--yellow);background:#ffdc0008}.mode input{accent-color:var(--yellow);width:20px;height:20px;flex-shrink:0}.mode small{display:block;color:var(--muted);margin-top:4px;font-size:13px}.pill{display:inline-block;background:#283039;border-radius:20px;padding:3px 12px;font-size:12px;white-space:nowrap;font-weight:400}.mode .pill{margin-left:auto}.mode:has(input:checked) .pill{background:var(--yellow);color:#111}.layout{grid-template-columns:1.05fr 1fr}.power-row{display:grid;grid-template-columns:1fr 1fr;gap:15px;align-items:center;margin-bottom:16px}.power-row>label{display:flex;gap:14px;align-items:center;font-weight:600}.icon{width:26px;height:26px;flex-shrink:0;stroke:currentColor;fill:none;stroke-width:1.7}.input-unit{display:flex;border:1px solid #56616b;border-radius:6px;overflow:hidden;background:#0b0d0f}.input-unit input{width:100%;min-width:0;background:transparent;border:0;padding:11px 14px;color:inherit;outline-offset:-3px}.input-unit>span{background:#252d35;padding:11px 14px;color:var(--muted);font-size:14px}.hint{font-size:13px;color:var(--muted);margin:10px 0}.cable-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;align-items:end;padding:10px 0;border-bottom:1px solid var(--border)}.cable-row label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.cable-name{font-size:14px;padding-bottom:12px}.primary{width:100%;background:var(--yellow);color:#111;font-weight:700;border-color:var(--yellow);margin-top:14px}.results{align-self:start}.big{font-size:clamp(32px,3vw,48px);color:var(--yellow);line-height:1.2;font-weight:800;margin:0 0 8px}.sub{color:var(--muted);margin:0 0 18px}.group{padding:18px;border:1px solid var(--border);border-radius:6px;margin:12px 0}.group h3{font-size:13px;letter-spacing:1px;color:var(--muted);margin:0 0 8px}.rating{font-size:28px;font-weight:700;line-height:1.2}.group p{margin:7px 0;font-size:13px;color:var(--muted)}.status{padding:12px;border:1px solid var(--border);border-radius:6px;font-size:13px;margin-top:10px}.warn,#error{color:#ffcd80}.status.warn{border-color:#a57534}.empty{padding:48px 12px;text-align:center;color:var(--muted)}#pdf{width:100%;margin-top:16px}button:disabled{opacity:.4;cursor:not-allowed}.assumptions{font-size:13px;color:var(--muted)}summary{cursor:pointer;font-weight:700;color:#fff}#details p{max-width:1100px}#details a{text-decoration:underline}footer{border-top:1px solid var(--border);display:flex;gap:30px;color:var(--muted);font-size:12px;padding:12px 0}footer p{margin:0;flex:1}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--yellow);outline-offset:3px}[aria-invalid=true]{outline:2px solid #ffcd80}.dirty{border-left:3px solid var(--yellow);padding:12px;color:var(--yellow)}@media(max-width:1050px){.mode{flex-wrap:wrap}.mode .pill{margin-left:34px}.layout{grid-template-columns:1fr 1fr}header,main{padding:20px}.cable-row{grid-template-columns:1fr 1fr}.cable-name{grid-column:1/-1;padding-bottom:0}}@media(max-width:740px){header{flex-wrap:wrap;gap:12px}.brand{font-size:25px}nav{width:100%;justify-content:space-between;margin:0}.layout,.mode-grid{grid-template-columns:1fr}.panel{padding:18px}h1{font-size:30px}.mode .pill{margin-left:auto}.mode{padding:14px}.power-row{grid-template-columns:1fr 1fr}footer{flex-direction:column;gap:8px}.big{font-size:38px}}@media print{body{background:white;color:black}header,form,.assumptions{display:none}}