@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;500;600&family=DM+Sans:wght@400;450;500;550;600;650;700&display=swap');
:root{color-scheme:dark;--bg:#07090d;--panel:#101318;--line:#ffffff15;--muted:#8d969f;--text:#edf2f5;--cyan:#80dced;--font:'DM Sans',Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px}button,input,select{font:inherit}button,a,input,select,summary{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.32}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,canvas:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}button{color:inherit}a{color:inherit}header{height:92px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 4%;position:relative;z-index:3;background:#080a0ee8}.brand{display:flex;align-items:center;gap:13px;text-decoration:none}.brand svg{width:38px;stroke:#b6e8f1;stroke-width:1.4;fill:none}.brand span{font-size:23px;letter-spacing:7px;font-weight:550}.brand small{display:block;font-size:8px;letter-spacing:4px;color:var(--muted);margin-top:4px}nav{display:flex;align-items:center;gap:38px;font-size:12px}.nav-active{color:#cbd5da}.text-button{border:0;background:none;color:var(--muted);font-size:12px;padding:8px 0}.text-button:hover{color:var(--text)}.badge{font-size:9px;letter-spacing:1.7px;border:1px solid #80dced32;border-radius:30px;padding:9px 12px;color:#a9c2cb;display:flex;gap:8px;align-items:center}.badge i,.live-dot{width:5px;height:5px;background:var(--cyan);border-radius:50%;box-shadow:0 0 10px #80dced70;display:inline-block}main{display:grid;grid-template-columns:minmax(0,1fr) 430px;max-width:1800px;margin:auto}.stage{position:sticky;top:0;height:calc(100vh - 92px);min-height:740px;max-height:1050px;overflow:hidden;background:radial-gradient(ellipse at 50% 57%,#18334257 0%,#0e1b2430 38%,transparent 65%)}.stage:before{content:'';position:absolute;inset:0;background-image:linear-gradient(#ffffff02 1px,transparent 1px),linear-gradient(90deg,#ffffff02 1px,transparent 1px);background-size:70px 70px;mask-image:linear-gradient(transparent,#000,transparent);pointer-events:none}.stage-heading{position:absolute;top:38px;left:6.3%;pointer-events:none;z-index:1}.eyebrow{color:#8fa6b0;letter-spacing:2.3px;font-size:9px;font-weight:600}h1{font-weight:450;letter-spacing:-2.5px;line-height:1.06;font-size:clamp(38px,4.5vw,64px);margin:17px 0 14px}.stage-heading p{color:var(--muted);font-size:12px;letter-spacing:.1px}.view-tag{position:absolute;top:250px;left:6.3%;right:6.3%;display:flex;align-items:center;gap:9px;font-size:8px;letter-spacing:1.5px;color:#a9bcc5;z-index:1}.revision{margin-left:auto;color:#58636e;font-size:8px}canvas{position:absolute;inset:160px 0 105px;width:100%;height:calc(100% - 265px);touch-action:none;cursor:grab}canvas:active{cursor:grabbing}.scene-controls{position:absolute;left:50%;transform:translateX(-50%);bottom:167px;display:flex;align-items:center;gap:5px;white-space:nowrap}.scene-controls button{background:#141b23b0;border:1px solid #ffffff16;border-radius:5px;padding:8px 13px;color:#bbc7cf;font-size:10px;backdrop-filter:blur(12px)}.scene-controls button[aria-pressed=true]{color:#bdeef8;border-color:#8fe9ff48}.scene-controls span{color:#687680;font-size:9px;padding-left:8px}.hero-stats{position:absolute;bottom:61px;left:7%;right:7%;display:grid;grid-template-columns:repeat(3,1fr);text-align:center}.hero-stats>div+div{border-left:1px solid var(--line)}.hero-stats strong{display:block;font-size:36px;font-family:'Barlow Condensed',var(--font);font-weight:400;letter-spacing:.4px;font-variant-numeric:tabular-nums}.hero-stats span{font-size:8px;letter-spacing:1.35px;color:#91a0aa;display:block;margin-top:7px}.stage-foot{position:absolute;bottom:20px;left:6.3%;right:6.3%;display:flex;justify-content:space-between;color:#536471;font-size:8px;letter-spacing:1px}.config-panel{padding:32px 29px 24px;background:linear-gradient(145deg,#15191e,#0c0f13 48%);border-left:1px solid var(--line);box-shadow:-15px 0 50px #0002;min-height:calc(100vh - 92px)}.panel-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px}.step-count{font-size:9px;letter-spacing:2px;color:#5f6974}.tabs{display:flex;border-bottom:1px solid #ffffff1b;margin-bottom:25px;gap:26px}.tabs button{font-size:12px;border:0;border-bottom:2px solid transparent;background:none;color:#737f88;padding:0 0 14px}.tabs button[aria-selected=true]{color:#f2f7fb;border-color:#91dceb}label{display:block;font-size:10px;color:#a6b0b8;line-height:1.5}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px}input,select{display:block;width:100%;background:#070a0f70;color:#eaf0f4;border:1px solid #ffffff18;border-radius:5px;min-height:43px;margin-top:6px;padding:11px 12px;font-size:13px;box-shadow:inset 0 1px 4px #0003}input:hover,select:hover{border-color:#ffffff34}input:focus,select:focus{border-color:#80dced88;outline:none}input::-webkit-inner-spin-button{opacity:.35}.input-unit{position:relative}.input-unit input{padding-right:45px;font-variant-numeric:tabular-nums}.input-unit span{position:absolute;right:13px;top:14px;color:#657481;font-size:11px;pointer-events:none}.output-block{margin-bottom:10px}.output-head{display:flex;align-items:center;justify-content:space-between;margin:12px 0 7px;font-size:9px;letter-spacing:1px;color:#8eb9c5}.output-head button{font-size:10px;color:#9b9292;border:0;background:none;padding:3px 0}.input-big input{height:54px;font-size:23px;font-family:'Barlow Condensed',var(--font)}.input-big span{top:19px}.add-button{background:none;border:0;color:#9eb5c2;font-size:10px;padding:9px 0 3px}.add-button:hover{color:var(--cyan)}#sizeInputs,#returnRow{margin-bottom:15px}.section-label{font-size:11px;display:flex;align-items:center;gap:9px;margin:24px 0 13px}.section-label span{font-size:8px;letter-spacing:1px;color:#728b97;padding:3px 5px;border:1px solid #ffffff16;border-radius:3px}.choice-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.choice{background:linear-gradient(155deg,#20272e50,#0c101650);border:1px solid #ffffff1c;border-radius:6px;padding:12px 11px;text-align:left;position:relative;box-shadow:inset 0 1px #ffffff08}.choice.selected{border-color:#8fbecb90;background:linear-gradient(145deg,#24333e70,#15202a45);box-shadow:inset 0 1px #ffffff12,0 0 20px #80dced05}.choice.selected:after{content:'✓';position:absolute;top:12px;right:12px;color:var(--cyan);font-size:10px}.choice b{display:block;font-size:11px;font-weight:500;margin:5px 0}.choice small{display:block;font-size:8px;color:#8997a2}.choice-icon{font-size:20px;color:#bed3dd}.grade-row{margin-top:15px}details{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}summary{cursor:pointer;color:#9aa7b1;font-size:10px;list-style:none}summary:before{content:'＋';margin-right:8px;color:#8cafbe}details[open] summary:before{content:'−'}summary span{float:right;font-size:8px;letter-spacing:1px;color:#586e7b}details p{font-size:11px;line-height:1.75;color:#8595a1}#assumptions .two-col{row-gap:12px}.result-grid{display:grid;grid-template-columns:1.4fr 1fr;border-top:1px solid var(--line);margin-top:22px;padding-top:18px;gap:10px}.result-grid span{font-size:9px;color:#7f929e}.result-grid strong{display:block;font-size:13px;font-weight:500;margin-top:6px;font-variant-numeric:tabular-nums}.price-row{display:flex;justify-content:space-between;align-items:flex-end;margin-top:25px}.price-row>div>span{display:block;color:#8496a3;font-size:10px;margin-bottom:5px}.price-row strong{font-family:'Barlow Condensed',var(--font);font-size:40px;font-weight:400;letter-spacing:.5px}.currency{text-align:right;color:#a4b1ba;font-size:10px;padding-bottom:5px}.currency small{font-size:8px;color:#637783}.price-metrics{display:flex;gap:14px;font-size:9px;color:#7892a1;margin-top:8px}.delivery{display:flex;align-items:center;gap:7px;font-size:10px;color:#8c9ea9;margin-top:14px}.delivery small{margin-left:auto;color:#627582;font-size:8px}.primary{width:100%;background:linear-gradient(115deg,#d5f0f5,#9cc9d7);border:1px solid #d7faff80;color:#11232e;border-radius:5px;padding:14px 17px;font-size:12px;font-weight:650;margin-top:20px;box-shadow:inset 0 1px #fff9,0 5px 18px #0003;display:flex;justify-content:space-between;align-items:center}.primary:hover{filter:brightness(1.12)}.prototype-note{font-size:8px;text-align:center;color:#697f8c;margin:12px 0 0;line-height:1.5}.technical{border-top:1px solid var(--line);padding:48px 4% 40px;max-width:1800px;margin:auto;background:#0a0d12}.technical-title{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}h2{font-size:27px;font-weight:450;letter-spacing:-.8px;margin:12px 0}.outline{background:linear-gradient(150deg,#222b3330,#0c101580);border:1px solid #ffffff27;color:#bac8d1;border-radius:5px;padding:12px 16px;font-size:11px}.outline:hover{border-color:#9cc9d770}.spec-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.spec-cards article{border:1px solid #ffffff11;border-radius:8px;padding:20px 22px;background:linear-gradient(130deg,#141a21,#0d1117);box-shadow:inset 0 1px #ffffff05}h3{font-size:12px;font-weight:500;margin:0 0 17px;color:#cdd9e0}h3 small{float:right;color:#667d8b;font-size:9px}.spec-row{display:flex;justify-content:space-between;align-items:baseline;font-size:10px;padding:9px 0;gap:20px;border-bottom:1px solid #ffffff06;color:#8799a7}.spec-row b{color:#c1d0d9;font-weight:450;text-align:right;font-variant-numeric:tabular-nums}.circuit-label{font-size:9px;letter-spacing:1px;color:#8cb7c6;margin:16px 0 4px}.engineering-notes{margin-top:25px}.engineering-notes p{max-width:1100px}.error{color:#edb4a8;background:#49241c44;border:1px solid #d4886940;border-radius:5px;padding:12px;font-size:11px;line-height:1.6;margin-top:15px}.warning-line{font-size:11px;color:#c3b69a;line-height:1.7;margin:8px 0}.small{font-size:10px;color:#8497a4;line-height:1.6}footer{padding:25px 4%;display:flex;justify-content:space-between;color:#536975;font-size:8px;letter-spacing:1.2px;border-top:1px solid var(--line)}dialog{width:min(610px,calc(100% - 30px));max-height:90vh;border:1px solid #64798666;border-radius:13px;padding:34px;color:var(--text);background:linear-gradient(135deg,#202932,#10151c 45%);box-shadow:inset 0 1px #ffffff30,0 30px 100px #000c;overflow-y:auto}dialog::backdrop{background:#010409b8;backdrop-filter:blur(9px)}.close{position:absolute;right:18px;top:12px;background:none;border:0;font-size:27px;color:#8b9ca7}.checkout-alert{font-size:11px;color:#a7b9c5;line-height:1.7;background:#83cbe90b;border:1px solid #91c9df20;padding:13px;margin:18px 0;border-radius:6px}.full{width:100%;margin-top:10px}.accepted-state{font-size:10px;color:#99c5c5;margin:15px 0}.payment-row{display:flex;gap:10px}.payment-row button{flex:1;padding:15px;border:1px solid #ffffff35;background:#e8edf1;color:#101820;border-radius:5px;font-weight:600;font-size:15px}.payment-row small{display:block;font-size:7px;font-weight:400;letter-spacing:1.3px;margin-top:4px}#agreementText{height:280px;overflow:auto;background:#080d1380;border:1px solid #ffffff18;border-radius:6px;padding:22px;margin-top:20px;font-size:12px;line-height:1.8;color:#aabcc8}#agreementText h3{color:#e1edf4;margin:18px 0 8px;font-size:15px}#agreementText h4{color:#cddce7;margin:20px 0 5px;font-size:12px}.check{display:flex;align-items:flex-start;gap:10px;margin:15px 0;font-size:11px}.check input{width:15px;height:15px;min-height:15px;margin:1px 0 0;accent-color:#8bcbde;flex-shrink:0}#downloadAgreements{display:block;margin:10px auto 0}#confirmation{margin-top:20px;border:1px solid #80dced50;border-radius:6px;padding:18px;background:#80dced0a;font-size:12px;line-height:1.8}#confirmation strong{font-size:18px;color:#b7e5ee}.success-note{color:#8fbdbe}#results.stale{opacity:.4;pointer-events:none}[hidden]{display:none!important}
@media(min-width:1500px){main{grid-template-columns:minmax(0,1fr) 480px}.config-panel{padding:40px}.stage-heading{top:45px}h1{font-size:70px}}
@media(max-width:1000px){main{grid-template-columns:minmax(0,1fr) 385px}.config-panel{padding:26px 22px}.stage{min-height:780px}.stage-heading p{max-width:220px;line-height:1.6}nav{gap:18px}.view-tag{top:255px}.revision{display:none}.hero-stats strong{font-size:30px}.hero-stats span{font-size:7px;letter-spacing:.8px}.scene-controls span{display:none}.spec-cards{gap:12px}.spec-cards article{padding:18px 15px}}
@media(max-width:760px){header{height:74px;padding:0 20px}.brand span{font-size:18px;letter-spacing:5px}.brand svg{width:30px}.brand small{font-size:7px}nav{display:none}.badge{font-size:7px;padding:7px 9px;letter-spacing:1px}main{display:block}.stage{position:relative;min-height:580px;height:580px}.stage-heading{top:25px;left:25px}h1{font-size:40px;letter-spacing:-1.5px;margin-top:12px}.stage-heading p{font-size:10px;max-width:100%}.view-tag{top:197px;left:25px;right:25px;font-size:7px}canvas{inset:135px 0 80px;height:365px}.scene-controls{bottom:132px}.hero-stats{bottom:46px;left:20px;right:20px}.hero-stats strong{font-size:30px}.stage-foot{bottom:14px;font-size:6px;left:25px;right:25px}.config-panel{border-left:0;border-top:1px solid var(--line);padding:28px 25px;min-height:0}.tabs{gap:0}.tabs button{flex:1}.technical{padding:35px 25px}.technical-title{align-items:flex-start;flex-direction:column}h2{font-size:24px}.spec-cards{grid-template-columns:1fr}.spec-cards article{padding:22px}footer{padding:22px 25px;gap:15px;flex-wrap:wrap;font-size:7px}dialog{padding:28px 22px}.price-row strong{font-size:43px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.inline-electrical{margin:22px 0;padding:18px;border:1px solid #80dced35;border-radius:6px;background:linear-gradient(130deg,#21303c50,#0a1018)}.inline-electrical h3{margin-bottom:8px}.pairs-label{margin-top:12px}.pairs-label small{display:block;font-size:9px;color:#7c919e;margin-top:6px}.spec-cards{grid-template-columns:repeat(2,1fr)}@media(max-width:760px){.spec-cards{grid-template-columns:1fr}}

.brand img{width:38px;height:38px;object-fit:contain;flex-shrink:0}