@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');
:root{font-family:Manrope,system-ui,sans-serif;color:#222e38;background:#f1f4f7;font-size:13px;--accent:#21394d;--muted:#6f8da6;--line:#dae2e8}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}header{height:86px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 42px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--accent);font-size:32px}.brand b{letter-spacing:-1.5px}.brand span{font-size:9px;letter-spacing:2px;margin-left:22px;color:var(--muted)}.header-right{display:flex;gap:10px;align-items:center;color:#62849f;font-size:11px}.dot{background:#5f7f9a;width:6px;height:6px;border-radius:100%}.quiet{border:1px solid #d5dee6;background:white;border-radius:7px;padding:11px 15px;color:#374b5b}.header-right button{margin-left:20px}main{display:grid;grid-template-columns:350px minmax(0,1fr);max-width:1600px;margin:auto}aside{background:white;padding:34px 30px;border-right:1px solid var(--line)}.eyebrow{font-size:9px;letter-spacing:1.8px;font-weight:800;color:#7592aa}h1{font-size:30px;line-height:1.25;letter-spacing:-1px;margin:15px 0}p.intro{color:#7593ab;line-height:1.8;font-size:12px}section{padding-top:23px}.section-label{display:flex;gap:12px;color:#94abbe;font-size:10px;margin-bottom:12px}.section-label span{font-weight:700;color:#30414e;font-size:12px}.box-card{display:flex;align-items:center;gap:12px;width:100%;padding:16px 12px;background:#f0f4f7;border:1px solid #9bb0c1;border-radius:9px;text-align:left}.box-icon{font-size:33px;color:#5b7a94}.box-card b{font-size:13px}.box-card small{display:block;margin-top:4px;color:#6585a0;font-size:10px}.box-card>span:last-child{margin-left:auto;color:#5c7b95}.hint{font-size:10px;line-height:1.7;color:#7e99b0;margin:8px 0}.materials{display:flex;gap:8px}.materials button{flex:1;border:1px solid var(--line);border-radius:7px;background:white;padding:12px;font-size:18px;font-weight:700;color:#61839e}.materials button.active{background:var(--accent);color:white;border-color:var(--accent)}.materials small{font-size:10px;font-weight:400}.double,.triple{display:grid;gap:9px;grid-template-columns:repeat(2,minmax(0,1fr))}.triple{grid-template-columns:repeat(3,minmax(0,1fr))}label{font-size:10px;color:#61839e}input[type=number],select{width:100%;padding:11px 9px;border:1px solid var(--line);border-radius:6px;background:#fbfcfd;color:#2c3b47;margin-top:5px}input:focus,select:focus{outline:2px solid #94abbd;outline-offset:1px}.mt{margin-top:12px}.margin-row{display:flex;align-items:center;gap:15px;margin:12px 0}.margin-row input{width:80px;margin-left:auto}details{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}summary{cursor:pointer;color:#5b7b95;font-size:11px;margin-bottom:14px}article{padding:34px 38px;min-width:0}.workspace-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}h2{font-size:24px;letter-spacing:-.7px;margin:9px 0 0}h2 span{font-size:12px;font-weight:400;color:#819bb1;margin-left:10px;letter-spacing:0}.tabs{background:#e4eaee;padding:4px;border-radius:8px;display:flex;gap:3px}.tabs button{border:0;border-radius:5px;background:transparent;color:#62839e;padding:9px 15px;font-size:11px}.tabs button.active{background:white;color:var(--accent);box-shadow:0 2px 5px #202f3b10}.stage{height:470px;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:12px;background-color:#f9fbfd;background-image:radial-gradient(#d0dae2 .8px,transparent .8px);background-size:18px 18px}#drawing,#three{width:100%;height:100%;display:block}#three[hidden],#drawing[hidden]{display:none}.stage-caption{position:absolute;left:22px;top:19px;font-size:9px;letter-spacing:1.2px;color:#8ea6ba}.stage-controls{position:absolute;right:18px;bottom:18px;display:flex;background:white;border:1px solid var(--line);border-radius:6px;box-shadow:0 2px 10px #22354408}.stage-controls button{background:transparent;border:0;padding:8px 12px;color:#597790}.legend{display:flex;gap:22px;font-size:10px;color:#6485a0;align-items:center;padding:17px 0}.legend span{display:flex;align-items:center;gap:7px}.legend i{width:17px;display:inline-block;border-top:2px solid #e02c2c}.legend i.crease{border-top:2px dashed #00a340}.legend label{margin-left:auto;display:flex;align-items:center;gap:6px}.metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;display:grid;grid-template-columns:1.2fr .8fr 1.2fr}.metrics>div+div{border-left:1px solid var(--line);padding-left:25px}.metrics small{display:block;color:#7a97ae;font-size:8px;letter-spacing:1.1px;margin-bottom:8px}.metrics strong{font-size:19px;font-weight:600;letter-spacing:-.5px}#fitStatus{font-size:14px}.good{color:#4b657b}.bad{color:#aa5c43}footer{display:flex;align-items:center;justify-content:space-between;padding:20px 0;gap:20px}footer p{font-size:10px;color:#7290a9;line-height:1.8}footer p span{font-size:9px}footer>div{display:flex;gap:8px}.primary{background:#21394d;color:white;border:0;border-radius:7px;padding:14px 22px;font-weight:600;font-size:12px;white-space:nowrap}.primary span{margin-left:20px}#foldControls{padding:16px 0 0}.fold-label{display:flex;justify-content:space-between;font-size:11px}input[type=range]{width:100%;accent-color:var(--accent);margin-top:13px}.projects{display:flex;align-items:center;gap:20px;border-top:1px solid var(--line);padding-top:16px}.projects label{max-width:260px;width:100%}#toast{font-size:11px;color:#547188}#validation{font-size:11px;color:#9f5c36;margin-bottom:10px;line-height:1.6}button:disabled{opacity:.5;cursor:not-allowed}@media(min-width:1450px){.stage{height:530px}}@media(max-width:1000px){main{grid-template-columns:300px minmax(0,1fr)}aside{padding:25px 20px}article{padding:25px 20px}.brand span{display:none}.legend{gap:10px;flex-wrap:wrap}.metrics strong{font-size:15px}footer{flex-wrap:wrap}}@media(max-width:720px){header{padding:0 20px;height:70px}.header-right{font-size:0}.header-right button{font-size:10px;margin:0}main{display:block}aside{border-right:0}h1 br{display:none}.intro{display:none}aside section{padding-top:18px}.stage{height:360px}.workspace-top{gap:15px}.tabs button{padding:9px}h2{font-size:21px}.metrics>div+div{padding-left:10px}.legend label{margin-left:0}}

#three{touch-action:none;cursor:grab}#three:active{cursor:grabbing}

.construction-select{display:block;margin:10px 0 12px}#fixedParams{display:flex;flex-wrap:wrap;gap:6px;color:#708fa8;font-size:10px;padding-top:8px}#fixedParams span{padding:5px;background:#eef1f4;border-radius:3px}h2#constructionTitle{font-size:21px;max-width:420px}label[hidden]{display:none}

.catalog-link{text-decoration:none;font-size:11px;white-space:nowrap}

.back-to-catalog{display:inline-flex;align-items:center;color:#213a4f;text-decoration:none;font-size:13px;font-weight:600;padding:10px 0;margin-bottom:18px}
.back-to-catalog:hover{text-decoration:underline}
.back-to-catalog:focus-visible{outline:2px solid #213a4f;outline-offset:4px}
#toast{display:block;color:#516d84;font-size:13px;margin-top:16px}

:root{--accent:#1679bd}
.primary{background:linear-gradient(120deg,#1766b2,#159bd0)}
.materials button.active{background:#1679bd;border-color:#1679bd}
input[type=checkbox]{accent-color:#168ec8}
.quiet:hover{background:#edf7ff;border-color:#91c7e8}

.section-label #showSheet{margin:0 0 0 auto;width:15px;height:15px;cursor:pointer}
input:disabled{background:#eef2f6;color:#9aa8b5;cursor:not-allowed}
.metrics>div[hidden]{display:none}
footer{justify-content:flex-end}
#validation:empty{display:none}