@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');
:root{font-family:'Be Vietnam Pro',Arial,sans-serif;color:#172339;background:#f5f7fb;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}header{height:84px;background:#fff;border-bottom:1px solid #e4e8f0;display:flex;align-items:center;justify-content:space-between;padding:0 5%;gap:20px}.brand{display:flex;gap:8px;align-items:center;text-decoration:none;color:#14233f;font-weight:800;font-size:22px;letter-spacing:-1px}.brand>span:last-child{font-weight:400}.brand-icon{background:#174ee8;color:white;border-radius:10px;padding:4px 9px;font-size:28px;margin-right:4px}.header-label{font-size:12px;letter-spacing:1.6px;color:#737e92}.pill{padding:9px 14px;background:#edf3ff;color:#174ee8;border-radius:30px;font-size:13px}main{max-width:1320px;padding:44px 32px 0;margin:auto}.intro{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:32px;gap:20px}.eyebrow{font-size:12px;font-weight:600;letter-spacing:1.8px;color:#6f7d94}h1{font-size:40px;letter-spacing:-1.5px;line-height:1.27;margin:15px 0}h1 span{color:#174ee8}.intro p{font-size:15px;color:#69768b;margin-bottom:0}.intro-note{display:flex;flex-direction:column;gap:10px;padding-bottom:4px;font-size:14px}.intro-note span{font-size:12px;color:#7d889a}.workspace{display:grid;grid-template-columns:370px 1fr;gap:24px;align-items:start}.controls,.preview-panel{background:#fff;border:1px solid #e1e7ef;border-radius:18px;overflow:hidden}.controls{padding:26px}.section-title{display:flex;gap:12px;align-items:center;margin-bottom:22px}h2{font-size:17px;margin:0;letter-spacing:-.4px}.step{font-size:12px;border:1px solid #dce5f4;color:#174ee8;border-radius:8px;padding:7px;font-weight:600}.second{margin-top:28px;padding-top:24px;border-top:1px solid #edf0f6}label{display:block;font-size:14px;font-weight:500;margin:16px 0 9px}label>span{color:#174ee8}.optional{float:right;font-size:12px;color:#8390a1;font-weight:400}input:not([type=range]),select{width:100%;min-height:44px;border:1px solid #dbe1eb;border-radius:8px;background:#fff;color:#27344c;padding:10px 12px;font-size:14px}input::placeholder{color:#9aa3b3}input:focus,select:focus,button:focus-visible{outline:3px solid #aec5ff;outline-offset:2px}.hint{font-size:12px;color:#7c889b;line-height:1.6;margin:7px 0 0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.range-head{display:flex;align-items:center;justify-content:space-between}.range-head label{margin:0}.range-head output{color:#174ee8;background:#edf3ff;padding:5px 10px;border-radius:5px;font-size:14px;font-weight:600}input[type=range]{width:100%;accent-color:#174ee8;margin:16px 0 5px}.range-ends{display:flex;justify-content:space-between;font-size:12px;color:#8591a4}.privacy{border-top:1px solid #edf0f6;padding-top:18px;margin-top:20px;font-size:12px;line-height:1.8;color:#748199}.privacy span{color:#174ee8;font-size:20px;margin-right:8px}.error{font-size:13px;color:#be3030}.preview-heading{padding:25px 28px;display:flex;align-items:center;justify-content:space-between;gap:10px}.preview-heading h2{margin-top:9px}.preview-heading .eyebrow{font-size:11px}.tabs{background:#f0f3f9;padding:4px;display:flex;border-radius:9px}.tabs button{border:0;background:transparent;color:#6c7b94;border-radius:6px;padding:9px 14px;font-size:13px}.tabs .active{background:#fff;color:#174ee8;box-shadow:0 2px 6px #15305115}#stage{height:440px;background-color:#edf2fa;background-image:radial-gradient(#cbd7e8 1px,transparent 1px);background-size:22px 22px;position:relative;border-top:1px solid #e6ecf4;border-bottom:1px solid #e6ecf4}#model,#flat{width:100%;height:100%}#flat{display:flex;align-items:center;justify-content:center}#flat[hidden],#model[hidden]{display:none}#flat svg{width:285px;max-width:80%;height:auto;box-shadow:0 15px 40px #2337561a}.sample{position:absolute;top:20px;left:22px;font-size:10px;letter-spacing:1px;background:#ffffffcf;color:#6b7990;border:1px solid #dce4ef;padding:7px 10px;border-radius:5px;pointer-events:none}#reset{position:absolute;bottom:19px;left:20px;border:1px solid #d9e3ef;background:#ffffffc9;border-radius:7px;padding:9px;color:#617089;font-size:12px}.stage-note{position:absolute;bottom:28px;right:22px;color:#8591a3;font-size:11px;pointer-events:none}.stats{display:grid;grid-template-columns:1.2fr 1fr 1fr;padding:22px 28px;border-bottom:1px solid #ecf0f6}.stats>div{display:flex;flex-direction:column;gap:9px;padding-left:20px;border-left:1px solid #e6ebf2}.stats>div:first-child{border:0;padding-left:0}.stats span{font-size:10px;letter-spacing:1px;color:#8a95a7}.stats b{font-size:15px;font-weight:600}.export{padding:20px 28px}.primary{background:#174ee8;color:white;width:100%;border:0;border-radius:9px;padding:15px;font-size:15px;font-weight:600;box-shadow:0 4px 10px #174ee820}.primary:hover{background:#0e3bba}button:disabled{opacity:.4;cursor:not-allowed}.secondary-buttons{display:flex;gap:10px;margin-top:10px}.secondary-buttons button{flex:1;border:1px solid #dfe5ee;background:#fff;padding:11px;border-radius:8px;font-size:13px;color:#415271}.export-note{font-size:11px;color:#8b96a7;text-align:center;line-height:1.7;margin-bottom:0}#quality{font-size:12px;line-height:1.7;color:#38577d;margin-bottom:14px}#quality.warn{color:#a45b0c}.tips{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin:35px 0 40px;padding:0 5px}.tips span{font-size:11px;letter-spacing:1px;color:#174ee8;font-weight:600}.tips h3{font-size:15px;margin:10px 0}.tips p{font-size:13px;color:#758197;line-height:1.85;margin:0}footer{border-top:1px solid #dfe5ef;padding:23px 0;display:flex;justify-content:space-between;font-size:11px;color:#96a1b2}footer span:first-child{font-weight:700;letter-spacing:2px}@media(min-width:1200px){h1 br{display:none}}@media(max-width:850px){.workspace{grid-template-columns:310px 1fr}.controls{padding:20px}.intro-note,.header-label{display:none}main{padding:30px 20px 0}h1{font-size:34px}#stage{height:410px}.stage-note{display:none}.stats{padding:20px 15px}.stats>div{padding-left:10px}.stats b{font-size:13px}.preview-heading{padding:22px 18px}.preview-heading .eyebrow{font-size:9px}.export{padding:20px}}@media(max-width:650px){header{height:70px;padding:0 20px}.brand{font-size:19px}.pill{font-size:11px}.workspace{grid-template-columns:1fr}.intro{margin-bottom:24px}h1{font-size:31px}.intro p{font-size:14px;line-height:1.8}.controls{padding:24px}.preview-panel{min-width:0}#stage{height:380px}.tips{grid-template-columns:1fr;gap:24px}.stats b{font-size:14px}.stats span{font-size:9px}.sample{font-size:9px;left:15px}}

.export-title{margin-bottom:8px}.export-summary{font-size:14px;color:#617089;margin:0 0 16px}.export-help{margin-top:14px;border:1px solid #dfe5ee;border-radius:8px;padding:12px;font-size:14px;line-height:1.7;color:#415271}.export-help summary{cursor:pointer;font-weight:600}.export-help ol{padding-left:22px}.export-help li+li{margin-top:8px}.export-help p{margin-bottom:0}#export-status{font-size:14px;line-height:1.6;color:#174ee8}#export-status:empty{display:none}.export-note{font-size:12px}

header{height:auto;min-height:84px;flex-wrap:wrap;padding-top:18px;padding-bottom:18px}.brand .brand-name{font-weight:700;font-size:clamp(16px,2vw,22px);letter-spacing:-.5px;white-space:nowrap}.brand-icon{flex-shrink:0}@media(max-width:650px){header{min-height:70px}}