:root{--orange:#f58418;--orange-dark:#d96308;--ink:#171512;--muted:#746e65;--cream:#fff8ed;--panel:#fffdf8;--line:#e9dfd2;--shadow:0 22px 60px rgba(64,39,15,.11);font-family:"Avenir Next",Avenir,"Segoe UI",system-ui,sans-serif;color:var(--ink);background:#f8f4ed;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:radial-gradient(circle at 9% 13%,rgba(245,132,24,.09),transparent 27%),#f8f4ed}button,select{font:inherit}button{cursor:pointer}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.topbar{height:72px;padding:0 clamp(20px,4vw,64px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(43,32,19,.1);background:rgba(248,244,237,.84);backdrop-filter:blur(16px);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:"Avenir Next",sans-serif;font-size:15px;font-weight:600}.brand b{color:var(--orange-dark)}.brand-mark{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;background:var(--orange);color:white;font-weight:800;box-shadow:0 6px 14px rgba(245,132,24,.25)}.header-actions{display:flex;gap:9px}.icon-button,.language-picker{height:38px;border:1px solid var(--line);background:#fff;border-radius:11px;display:flex;align-items:center;justify-content:center}.icon-button{width:38px;color:#786f64}.icon-button svg{width:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}.icon-button[aria-pressed=true]{color:var(--orange-dark);border-color:#f7bd82;background:#fff8ee}.language-picker{position:relative;min-width:78px}.language-picker select{appearance:none;border:0;background:transparent;padding:0 29px 0 13px;height:100%;font-weight:700;font-size:13px;outline:0}.language-picker svg{position:absolute;right:10px;width:15px;fill:none;stroke:currentColor;stroke-width:1.8;pointer-events:none}
main{max-width:1500px;margin:auto}.intro{padding:clamp(28px,4vw,48px) clamp(20px,4vw,64px) 22px;display:flex;align-items:end;justify-content:space-between;gap:24px}.eyebrow{margin:0 0 7px;color:var(--orange-dark);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.intro h1,.reference-copy h2{font-family:"Avenir Next",sans-serif;margin:0;line-height:1.02;letter-spacing:-.045em}.intro h1{font-size:clamp(32px,4vw,56px)}.intro h1 span,.reference-copy h2 span{color:var(--orange)}.project-meta{display:flex;align-items:center;gap:11px;color:var(--muted);font-size:13px;font-weight:600;padding-bottom:7px}.project-meta i{width:3px;height:3px;background:#b8ad9e;border-radius:50%}
.workspace{margin:0 clamp(16px,3vw,48px) clamp(60px,8vw,110px);display:grid;grid-template-columns:205px minmax(380px,1.14fr) minmax(350px,.86fr);min-height:660px;border:1px solid var(--line);border-radius:24px;background:var(--panel);box-shadow:var(--shadow);overflow:hidden}.step-nav{padding:25px 15px;background:#f3ede4;border-right:1px solid var(--line)}.steps-head{display:flex;justify-content:space-between;align-items:center;padding:0 10px 17px;color:#9a8f82;font-size:10px;letter-spacing:.14em}.steps-head strong{color:var(--orange-dark);letter-spacing:.03em}.step-nav nav{display:flex;flex-direction:column;gap:4px}.step-button{width:100%;border:0;background:transparent;border-radius:12px;display:grid;grid-template-columns:28px 1fr 18px;align-items:center;text-align:left;gap:7px;padding:10px 8px;color:#756e65;transition:.2s}.step-button:hover{background:#eee5d8;color:var(--ink)}.step-button.active{background:#fff;color:var(--ink);box-shadow:0 7px 20px rgba(60,39,17,.08)}.step-number{font:700 11px "Avenir Next";color:#a79d91}.step-button.active .step-number{color:var(--orange-dark)}.step-name{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.step-state{width:17px;height:17px;border:1.5px solid #cfc4b6;border-radius:50%;display:grid;place-items:center;font-size:11px;color:white}.step-button.complete .step-state{background:var(--orange);border-color:var(--orange)}
.viewer-card{position:relative;min-width:0;background:radial-gradient(circle at 50% 43%,#fff 0,#fcf8f1 46%,#efe7dc 100%);border-right:1px solid var(--line)}.viewer-toolbar{height:58px;position:absolute;top:0;left:0;right:0;z-index:4;display:flex;align-items:center;justify-content:space-between;padding:0 18px}.live-badge{display:flex;align-items:center;gap:7px;padding:7px 10px;border:1px solid rgba(54,39,20,.1);border-radius:99px;background:rgba(255,255,255,.72);backdrop-filter:blur(8px);font:800 9px "Avenir Next";letter-spacing:.11em}.live-badge i{width:6px;height:6px;background:#54a66b;border-radius:50%;box-shadow:0 0 0 3px rgba(84,166,107,.14)}.reset-button{border:0;background:transparent;color:#81786e;display:flex;gap:6px;align-items:center;font-size:11px;font-weight:700;padding:8px}.reset-button svg{width:16px;fill:none;stroke:currentColor;stroke-width:1.7}.canvas-shell{position:absolute;inset:0;overflow:hidden}.canvas-shell:after{content:"";position:absolute;left:18%;right:18%;bottom:10%;height:8%;background:rgba(79,48,14,.14);filter:blur(20px);border-radius:50%;pointer-events:none}#modelCanvas,#modelPoster{position:absolute;inset:0;width:100%;height:100%}#modelCanvas{z-index:2;touch-action:none;opacity:0;transition:opacity .4s}#modelPoster{object-fit:contain;mix-blend-mode:multiply;padding:70px 35px 54px;transition:opacity .35s}.model-loader{position:absolute;z-index:5;left:50%;top:50%;transform:translate(-50%,-50%);padding:15px 19px;background:rgba(255,255,255,.9);border:1px solid var(--line);box-shadow:0 12px 30px rgba(60,38,12,.12);border-radius:14px;display:grid;grid-template-columns:18px auto;gap:3px 9px;align-items:center;font-size:12px}.model-loader span{grid-row:1/3;width:18px;height:18px;border:2px solid #f4d5b4;border-top-color:var(--orange);border-radius:50%;animation:spin .8s linear infinite}.model-loader small{color:#93877a}.model-loader.hidden{display:none}@keyframes spin{to{transform:rotate(360deg)}}.viewer-hint{position:absolute;z-index:4;left:50%;bottom:18px;transform:translateX(-50%);display:flex;align-items:center;gap:7px;color:#81786e;font-size:10px;font-weight:600;white-space:nowrap}.viewer-hint svg{width:17px;fill:none;stroke:currentColor;stroke-width:1.55}.selection-pill{position:absolute;top:70px;left:50%;z-index:4;transform:translateX(-50%) translateY(-8px);display:flex;align-items:center;gap:8px;background:#171512;color:white;padding:7px 8px 7px 12px;border-radius:99px;font-size:11px;font-weight:700;opacity:0;pointer-events:none;transition:.22s}.selection-pill.visible{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}.selection-pill button{width:20px;height:20px;display:grid;place-items:center;border:0;border-radius:50%;background:#37332d;color:#fff;line-height:1}
.recipe-panel{min-width:0;display:flex;flex-direction:column;background:#fffdf9}.recipe-head{padding:31px 30px 20px;display:flex;justify-content:space-between;align-items:start;border-bottom:1px solid #eee5d9}.recipe-head p{margin:0 0 5px;color:var(--orange-dark);font-size:10px;letter-spacing:.16em;font-weight:800}.recipe-head h2{font:800 clamp(20px,2vw,27px)/1.15 "Avenir Next";margin:0;letter-spacing:-.035em}.check-button{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:white;color:#b8afa4;display:grid;place-items:center;transition:.2s}.check-button svg{width:18px;fill:none;stroke:currentColor;stroke-width:2}.check-button[aria-pressed=true]{background:var(--orange);color:white;border-color:var(--orange)}.recipe-scroll{padding:24px 30px;overflow:auto;flex:1;max-height:518px;scrollbar-width:thin;scrollbar-color:#d8cbbb transparent}.material-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.material{border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:#fff}.material b{display:block;font-size:12px}.material small{color:var(--muted);font-size:11px}.section-label{margin:3px 0 11px;font:800 10px "Avenir Next";letter-spacing:.14em;color:#92877a}.instruction-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}.instruction-list li{padding:9px 11px;border-radius:9px;font-size:13px;line-height:1.42;color:#4f4941}.instruction-list li:nth-child(odd){background:#faf6ef}.instruction-list strong{color:var(--ink);font-weight:800}.note{margin:14px 0 0;padding:12px 13px;border-left:3px solid var(--orange);background:#fff5e7;border-radius:0 9px 9px 0;color:#62584c;font-size:12px;line-height:1.5}.abbr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin-top:18px}.abbr-grid span{font-size:11px;color:var(--muted)}.abbr-grid b{color:var(--orange-dark);margin-right:4px}.recipe-foot{height:66px;padding:0 24px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.recipe-foot button{border:0;background:transparent;color:#6d655c;font-size:11px;font-weight:700;display:flex;gap:7px;padding:9px}.recipe-foot button:disabled{opacity:.3}.progress-dots{display:flex;gap:5px}.progress-dots i{width:5px;height:5px;border-radius:5px;background:#ddd2c5}.progress-dots i.active{width:16px;background:var(--orange)}
.reference-section{margin:0 clamp(20px,7vw,110px) 90px;display:grid;grid-template-columns:minmax(270px,.65fr) minmax(460px,1.35fr);gap:clamp(40px,7vw,100px);align-items:center}.reference-copy h2{font-size:clamp(32px,4.2vw,58px);max-width:520px}.reference-copy>p:not(.eyebrow){max-width:470px;color:var(--muted);line-height:1.7;font-size:15px}.legend{display:flex;flex-wrap:wrap;gap:13px 18px;margin-top:26px}.legend span{display:flex;align-items:center;gap:7px;font-size:11px}.legend i{width:13px;height:13px;border-radius:50%;border:1px solid rgba(0,0,0,.12)}.legend .orange{background:#ef841b}.legend .black{background:#191716}.legend .cream{background:#ffe5a9}.legend .pink{background:#efb2c5}.gallery{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:1fr 1fr;gap:10px;height:500px}.gallery button{border:0;padding:0;background:#ddd;border-radius:18px;overflow:hidden;position:relative}.gallery-main{grid-row:1/3}.gallery button:last-child{grid-column:2/4}.gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}.gallery button:hover img{transform:scale(1.035)}dialog{border:0;padding:0;background:transparent;max-width:min(90vw,920px);max-height:90vh}dialog::backdrop{background:rgba(17,14,11,.86);backdrop-filter:blur(8px)}dialog img{display:block;max-width:90vw;max-height:86vh;border-radius:16px}dialog button{position:fixed;top:22px;right:26px;width:42px;height:42px;border:0;border-radius:50%;background:white;color:#111;font-size:25px}footer{max-width:1500px;margin:auto;border-top:1px solid var(--line);padding:25px clamp(20px,4vw,64px);display:flex;justify-content:space-between;color:#8b8176;font-size:11px}
@media(max-width:1050px){.workspace{grid-template-columns:150px minmax(360px,1fr) minmax(330px,.92fr);margin-inline:14px}.step-name{font-size:12px}.step-button{grid-template-columns:22px 1fr 15px;padding-inline:5px}.recipe-head,.recipe-scroll{padding-left:22px;padding-right:22px}}
@media(max-width:820px){.topbar{height:62px}.intro{align-items:start;flex-direction:column;gap:12px}.workspace{display:flex;flex-direction:column;min-height:0;border-radius:19px;overflow:visible;background:transparent;border:0;box-shadow:none}.step-nav{order:1;border:1px solid var(--line);border-radius:16px;background:#f1eadf;padding:10px;position:sticky;top:69px;z-index:10;overflow:hidden}.steps-head{display:none}.step-nav nav{flex-direction:row;overflow:auto;scrollbar-width:none}.step-button{flex:0 0 auto;width:auto;display:flex;padding:10px 12px;border-radius:10px}.step-button .step-state{display:none}.step-button.active{background:var(--orange);color:white;box-shadow:none}.step-button.active .step-number{color:#fff}.viewer-card{order:2;height:min(72vh,590px);min-height:480px;border:1px solid var(--line);border-radius:18px;margin-top:10px;overflow:hidden}.recipe-panel{order:3;border:1px solid var(--line);border-radius:18px;margin-top:10px;overflow:hidden}.recipe-scroll{max-height:none}.reference-section{grid-template-columns:1fr;margin-bottom:60px}.gallery{height:420px}}
@media(max-width:560px){.brand span:last-child{display:none}.intro{padding:24px 20px 17px}.intro h1{font-size:34px}.project-meta{gap:8px;font-size:12px}.workspace{margin-inline:10px}.viewer-card{height:520px;min-height:0}.viewer-toolbar{height:52px;padding:0 12px}.reset-button span{display:none}#modelPoster{padding:55px 0 48px}.recipe-head{padding:24px 20px 16px}.recipe-scroll{padding:19px 20px}.recipe-foot{padding:0 12px}.material-grid{grid-template-columns:1fr}.reference-section{margin-inline:20px;gap:28px}.gallery{height:390px;grid-template-columns:1fr 1fr;grid-template-rows:2fr 1fr}.gallery-main{grid-column:1/3;grid-row:1}.gallery button:last-child{grid-column:auto}.gallery button:nth-child(3){display:none}.reference-copy h2{font-size:38px}.viewer-hint{bottom:13px}footer{flex-direction:column;gap:6px}}
.viewer-card{background:radial-gradient(circle at 50% 43%,#e7ddce 0,#d8cbbb 55%,#bfb09c 100%)}
#modelCanvas{cursor:grab}
#modelCanvas:active{cursor:grabbing}
.language-menu{position:relative;font-size:14px}
.language-menu summary{display:flex;align-items:center;gap:9px;cursor:pointer;background:white;border:1px solid var(--line);border-radius:11px;padding:10px 12px;list-style:none;font-weight:700}
.language-menu summary::-webkit-details-marker{display:none}
.language-menu img{object-fit:cover;border-radius:3px;box-shadow:0 0 0 1px #0001}
.language-options{position:absolute;right:0;top:calc(100% + 8px);min-width:190px;background:white;padding:6px;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow)}
.language-options button{display:flex;align-items:center;gap:10px;width:100%;border:0;background:transparent;border-radius:8px;padding:12px;color:var(--ink);text-align:left}
.language-options button:hover,.language-options button[aria-pressed=true]{background:#fff0dc}
@media(max-width:820px){.viewer-card{margin-right:24px}.step-nav nav{overscroll-behavior-x:contain}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}