.online-preview-body { padding-top: 38px !important; }
.online-preview-banner {
  position: fixed; inset: 0 0 auto; z-index: 99999; height: 38px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 18px; color: #f4f7f5; background: #101714;
  border-bottom: 1px solid rgba(255,255,255,.14); font: 600 12px/1.2 system-ui, sans-serif;
  letter-spacing: .08em; text-transform: uppercase;
}
.preview-toast {
  position: fixed; right: 22px; bottom: 22px; z-index: 100000; max-width: 360px;
  padding: 16px 18px; border-radius: 12px; color: #fff; background: #101714;
  box-shadow: 0 18px 50px rgba(0,0,0,.28); font: 500 14px/1.5 system-ui, sans-serif;
}
@media (max-width: 640px) {
  .online-preview-banner { justify-content: flex-start; font-size: 10px; }
  .preview-toast { left: 14px; right: 14px; bottom: 14px; }
}

/* 3D packaging studio */
.studio-head{max-width:1440px;margin:0 auto;padding:70px 48px 42px;display:flex;justify-content:space-between;align-items:flex-end;gap:40px}.studio-head h1{font:500 clamp(2.4rem,5vw,5.2rem)/.94 Georgia,serif;letter-spacing:-.045em;margin:15px 0 20px;max-width:820px}.studio-head p{max-width:720px;color:#657068;font-size:1.05rem;line-height:1.7}.studio-step{display:flex;align-items:center;gap:14px;color:#69736d}.studio-step b{font:400 4rem/1 Georgia,serif;color:#c4cbc6}.studio-step span{font:700 .68rem/1.45 system-ui;letter-spacing:.14em}.packaging-studio{max-width:1440px;margin:0 auto 90px;padding:0 48px;display:grid;grid-template-columns:290px minmax(420px,1fr) 290px;gap:18px;align-items:stretch}.config-panel,.summary-panel,.viewer-panel{border:1px solid #dce1dd;background:#fff}.config-panel,.summary-panel{padding:24px}.panel-title,.viewer-top>div{display:flex;gap:12px;align-items:center;border-bottom:1px solid #e5e9e6;padding-bottom:18px;margin-bottom:24px}.panel-title span,.viewer-top span{color:#a0aaa3;font:600 .72rem system-ui}.panel-title h2,.viewer-top h2{font:600 1rem system-ui;margin:0}.config-panel>label,.artwork-upload>span{display:block;margin:0 0 22px;font:650 .76rem/1.4 system-ui;color:#354039;letter-spacing:.035em}.config-panel select{width:100%;margin-top:9px;padding:11px 12px;border:1px solid #ccd4ce;background:#f8faf8;color:#17201c;border-radius:2px;font-size:.85rem}.choice-row{display:flex;margin-top:9px}.choice-row button{flex:1;padding:9px 3px;border:1px solid #d5dbd7;border-right:0;background:#fff;font-size:.7rem}.choice-row button:last-child{border-right:1px solid #d5dbd7}.choice-row button.active,.closure-grid button.active{background:#15201b;color:#fff;border-color:#15201b}.closure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin-top:9px}.closure-grid button{min-width:0;padding:10px 2px;border:1px solid #d5dbd7;background:#fff}.closure-grid i{display:block;font:400 1.25rem/1 system-ui;margin-bottom:5px}.closure-grid span{font-size:.62rem}.swatches{display:flex;gap:9px;margin-top:10px}.swatches button{width:28px;height:28px;border:4px solid #fff;border-radius:50%;background:var(--sw);box-shadow:0 0 0 1px #ccd3ce}.swatches button.active{box-shadow:0 0 0 2px #17201c}.artwork-upload{margin-top:26px}.upload-button{height:76px;border:1px dashed #aeb9b1;background:#f5f8f6;display:flex!important;align-items:center;justify-content:center;gap:9px;cursor:pointer;color:#26332c}.upload-button b{font-size:1.2rem}.upload-button span{font-size:.78rem;font-weight:650}.artwork-upload small{display:block;color:#89928c;font-size:.67rem;line-height:1.45;margin-top:8px}.viewer-panel{min-height:700px;background:radial-gradient(circle at 50% 42%,#f9faf9 0,#edf1ee 62%,#e5eae6 100%);position:relative;overflow:hidden}.viewer-top{position:absolute;z-index:2;left:25px;right:25px;top:22px;display:flex;justify-content:space-between;align-items:flex-start}.viewer-top>div{border:0;margin:0;padding:0}.viewer-top p{font:500 .68rem system-ui;color:#758078}.model-stage{height:100%;min-height:700px;display:grid;place-items:center;position:relative}.model-stage canvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:none}.model-stage canvas:active{cursor:grabbing}.model-shadow{position:absolute;bottom:10%;width:42%;height:5%;border-radius:50%;background:rgba(25,34,29,.18);filter:blur(14px);pointer-events:none}.view-axis{position:absolute;right:22px;bottom:72px;width:48px;height:48px;color:#68736c;font:700 .62rem system-ui}.view-axis span{position:absolute;left:23px;bottom:9px;width:1px;height:28px;background:#99a39d}.view-axis span:after{content:'';position:absolute;left:0;bottom:0;width:25px;height:1px;background:#99a39d}.view-axis b{position:absolute;top:0;left:19px}.view-axis i{position:absolute;right:-2px;bottom:4px;font-style:normal}.viewer-actions{position:absolute;z-index:3;left:0;right:0;bottom:0;display:flex;justify-content:center;gap:8px;padding:18px;background:linear-gradient(transparent,rgba(238,242,239,.95))}.viewer-actions button{border:1px solid #bcc5bf;background:rgba(255,255,255,.72);padding:9px 13px;font-size:.7rem;border-radius:20px}.viewer-actions button i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#aaa;margin-right:7px}.viewer-actions button.active i{background:#4a8c67;box-shadow:0 0 0 3px rgba(74,140,103,.15)}.mini-card{height:185px;background:#edf1ee;margin-bottom:20px;overflow:hidden}.mini-card canvas{width:100%;height:100%}.summary-panel dl{margin:0}.summary-panel dl div{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid #e7eae8}.summary-panel dt{color:#849088;font:500 .7rem system-ui}.summary-panel dd{margin:0;text-align:right;font:650 .72rem system-ui;color:#253029}.summary-panel .button{margin-top:24px}.concept-note{font-size:.72rem;line-height:1.5;color:#4a765b}.packaging-studio .button.primary{background:#a36136;border-color:#a36136;color:#fff}
#packaging-webgl{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:none;filter:saturate(.98) contrast(1.015)}#packaging-webgl:active{cursor:grabbing}.model-stage:before{content:'';position:absolute;inset:12% 8% 9%;border-radius:50%;background:radial-gradient(ellipse at 50% 74%,rgba(255,255,255,.95),rgba(255,255,255,0) 64%);pointer-events:none}.viewer-panel:after{content:'REAL-TIME PBR';position:absolute;right:24px;top:66px;padding:5px 8px;border:1px solid rgba(38,49,43,.18);color:#66716a;font:700 .58rem/1 system-ui;letter-spacing:.12em}
@media(max-width:1100px){.packaging-studio{grid-template-columns:260px 1fr}.summary-panel{grid-column:1/-1;display:grid;grid-template-columns:220px 1fr;gap:20px}.summary-panel .panel-title{grid-column:1/-1}.summary-panel .mini-card{margin:0}.summary-panel .button,.summary-panel .concept-note{grid-column:2}.viewer-panel,.model-stage{min-height:640px}}
@media(max-width:760px){.studio-head{padding:50px 18px 28px}.studio-step{display:none}.packaging-studio{padding:0 14px;grid-template-columns:1fr}.viewer-panel{grid-row:1;min-height:520px}.model-stage{min-height:520px}.config-panel{grid-row:2}.summary-panel{grid-row:3;grid-column:auto;display:block}.viewer-top{left:17px;right:17px}.viewer-top p{display:none}.studio-head h1{font-size:2.7rem}.packaging-studio{margin-bottom:45px}}

/* product-led packaging configurator */
.packaging-studio{grid-template-columns:390px minmax(440px,1fr) 290px}.config-panel{max-height:760px;overflow:auto;scrollbar-width:thin}.product-picker{display:grid;gap:8px;margin-top:10px}.body-picker{grid-template-columns:repeat(2,1fr)}.product-picker button{position:relative;min-width:0;border:1px solid #d8dfda;background:#f7f9f7;padding:8px;color:#26322c;text-align:left;cursor:pointer;transition:border-color .2s,box-shadow .2s,background .2s}.product-picker button:hover{border-color:#899890}.product-picker button.active{border-color:#17221c;background:#fff;box-shadow:inset 0 0 0 2px #17221c}.product-picker canvas{display:block;width:100%;height:86px;object-fit:contain;background:radial-gradient(circle,#fff 0,#eef2ef 70%);margin-bottom:6px}.product-picker span{display:block;font:700 .7rem/1.25 system-ui}.product-picker small{display:block;margin-top:2px;color:#849087;font:500 .6rem system-ui}.closure-picker{grid-template-columns:repeat(2,1fr)}.closure-picker canvas{height:68px}.custom-capacity{display:grid;grid-template-columns:1fr 70px;margin-top:8px}.custom-capacity input,.custom-capacity select{margin:0!important;padding:9px!important}.custom-capacity select{border-left:0}.color-editor{display:grid;grid-template-columns:46px 1fr 28px;gap:8px;align-items:center;margin-top:9px}.color-editor input[type=color]{width:46px;height:42px;padding:2px;border:1px solid #cbd4ce;background:#fff}.color-editor input[type=text]{height:42px;padding:8px;margin:0;font:700 .72rem monospace;text-transform:uppercase}.color-editor span{width:28px;height:28px;border-radius:50%;background:var(--custom-color);box-shadow:0 0 0 1px #ccd3ce}.ai-match-studio{max-width:1344px;margin:0 auto 90px;padding:48px;background:#101714;color:#fff;display:grid;grid-template-columns:330px 1fr;gap:55px}.ai-match-copy h2{font:500 clamp(2.1rem,3.5vw,3.8rem)/1 Georgia,serif;margin:18px 0}.ai-match-copy p{color:#a9b7b0}.ai-match-panel{min-width:0}.ai-mode-tabs{display:flex;border-bottom:1px solid #405048;margin-bottom:24px}.ai-mode-tabs button{border:0;background:transparent;color:#92a199;padding:12px 18px;font-weight:700}.ai-mode-tabs button.active{color:#d9ff43;border-bottom:2px solid #d9ff43}.ai-input-row{display:grid;grid-template-columns:1fr auto;gap:12px}.ai-input-row select,.ai-input-row textarea,.ai-upload-trigger{width:100%;min-height:50px;padding:13px;border:1px solid #52635b;background:#1b2a24;color:#fff}.ai-input-row textarea{grid-row:span 2}.ai-upload-trigger{text-align:left}.ai-input-row .button{min-width:210px;background:#d9ff43!important;border-color:#d9ff43!important;color:#101714!important}.ai-match-result{margin-top:20px;border:1px solid #34463d;background:#16241e;padding:20px}.ai-match-result span{color:#d9ff43;font:800 .68rem system-ui;letter-spacing:.13em}.ai-match-result h3{font:500 1.7rem Georgia,serif;margin:9px 0}.ai-match-result p{margin:0;color:#a8b6af}.ai-input-row [hidden]{display:none!important}
.ai-flow{list-style:none;margin:30px 0 0;padding:0;border-top:1px solid #33433b}.ai-flow li{display:grid;grid-template-columns:38px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid #33433b;align-items:center}.ai-flow b{color:#d9ff43;font:700 .65rem system-ui}.ai-flow span{color:#d1d9d4;font:600 .72rem system-ui}.studio-transition{max-width:1344px;margin:0 auto 24px;padding:0 4px;display:flex;align-items:center;gap:16px;color:#58645d}.studio-transition span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#a36136;color:#fff;font:700 .7rem system-ui}.studio-transition p{margin:0;font:600 .78rem/1.5 system-ui}.ai-match-result .match-reasons{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:15px}.ai-match-result .match-reasons b{display:block;padding:9px;border:1px solid #3b5146;background:#102019;color:#dbe5df;font:600 .65rem/1.3 system-ui}
@media(max-width:1250px){.packaging-studio{grid-template-columns:340px 1fr}.summary-panel{grid-column:1/-1}.config-panel{max-height:none}.ai-match-studio{margin-left:28px;margin-right:28px}.studio-transition{margin-left:32px;margin-right:32px}}
@media(max-width:760px){.packaging-studio{grid-template-columns:1fr}.body-picker,.closure-picker{grid-template-columns:repeat(2,1fr)}.ai-match-studio{margin:0 14px 28px;padding:26px 20px;grid-template-columns:1fr;gap:20px}.ai-mode-tabs{overflow:auto}.ai-mode-tabs button{white-space:nowrap;padding:10px}.ai-input-row{grid-template-columns:1fr}.ai-input-row .button{min-width:0}.product-picker canvas{height:74px}.studio-transition{margin:0 18px 20px}.ai-match-result .match-reasons{grid-template-columns:1fr}}