/* V3 designer module; isolated styles preserve V2.1 perspective UI. */
[hidden]{display:none!important}
.workspace-tabs{display:flex;align-items:center;gap:6px;padding:5px;border-radius:12px;background:#1b3150;border:1px solid #2d496a}
.workspace-tab{color:#c4d7ef;padding:10px 15px;border:0;border-radius:8px;background:transparent;font-size:12px;font-weight:750;white-space:nowrap}
.workspace-tab.active{background:#fff;color:#14385c;box-shadow:0 2px 8px #061f3540}
.workspace-tab:hover:not(.active){background:#2c4564}
.design-shell{max-width:1710px;padding:20px 18px 66px;margin:auto;display:grid;grid-template-columns:292px minmax(0,1fr) 295px;gap:16px;align-items:start}
.design-config,.design-controls{overflow:hidden;min-width:0}
.design-panel-top{padding:20px 19px 16px;border-bottom:1px solid #edf1f5}
.design-panel-top h2{font-size:20px;margin:5px 0 6px;letter-spacing:-.4px}
.design-panel-top p{font-size:11px;line-height:1.6;color:#7b8ca1;margin:0}
.design-inner{padding:16px 17px 22px}
.design-inner h3{font-size:12px;color:#283d57;margin:17px 0 10px;font-weight:800}
.design-inner h3:first-child{margin-top:0}
.design-segment{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.design-segment button{background:#f8fafc;color:#4b6180;font-size:12px;font-weight:750;padding:13px 8px;border:1px solid #dfe6ef;border-radius:10px}
.design-segment button.selected{color:#ae0020;background:#fff1f3;border-color:#d90b2d;box-shadow:0 0 0 1px #d90b2d}
.design-row-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.mini-tag{background:#eff4fa;color:#627ea2;border-radius:6px;padding:5px 8px;font-weight:700;font-size:10px}
.design-layouts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.design-layout-button{border:1px solid #e1e7ef;background:#fff;border-radius:10px;padding:7px 5px 8px;min-width:0;display:flex;flex-direction:column;align-items:center;gap:6px;color:#32435e}
.design-layout-button.selected{border:2px solid #d60022;padding:6px 4px 7px;background:#fff5f6}
.design-layout-button img{width:100%;height:60px;object-fit:contain;border-radius:7px;background:#f2f5f9}
.design-layout-button span{font-size:11px;font-weight:780}
.design-dimension-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:9px}
.design-inner label{font-size:11px;font-weight:720;color:#5e748d;display:flex;flex-direction:column;gap:6px;min-width:0}
.design-inner input:not([type=checkbox]),.design-inner select{width:100%;min-width:0;padding:9px 10px;border:1px solid #dfe5ee;border-radius:9px;background:#fff;color:#1f344b;font-size:12px;font-weight:600;outline:none}
.design-inner input:focus,.design-inner select:focus{border-color:#338ae6;box-shadow:0 0 0 2px #2182ed22}
.design-inner input[type=color]{height:37px;padding:4px!important}
.design-advice{border-radius:9px;padding:10px;font-size:11px;line-height:1.6;color:#5c718c;background:#f1f6fe;margin-top:10px}
.design-advice.warn{background:#fff3eb;color:#a25312;border:1px solid #fbd8af}
.design-content-fields{display:flex;flex-direction:column;gap:11px}
.design-muted{font-size:11px;color:#7f91a6;line-height:1.65;margin:14px 0 0}
.design-center{min-width:0}
.design-step-bar{height:57px;padding:9px 12px;display:flex;align-items:center;justify-content:center;gap:13px;font-size:11px;font-weight:750;color:#647d99;margin-bottom:15px;white-space:nowrap;overflow:hidden}
.mini-dot{width:20px;height:20px;border-radius:50%;display:inline-grid;place-items:center;background:#f7ebee;color:#bf0029;font-weight:850;flex-shrink:0}
.step-separator{font-size:18px;color:#bccbd9}
.design-canvas-card{overflow:hidden}
.design-canvas-head{padding:22px 21px 15px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.design-canvas-head h1{font-size:20px;margin:0 0 6px}
.design-canvas-head p{font-size:11px;color:#7b8da4;margin:0}
.design-state{border-radius:50px;padding:7px 10px;font-size:10px;color:#158051;background:#ecfaf4;white-space:nowrap}
.design-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:0 18px 14px}
.design-quiet{border:1px solid #e1e8f1;border-radius:9px;padding:10px 11px;background:#f9fbfe;color:#58708e;font-weight:750;font-size:11px}
.design-quiet:disabled{opacity:.4;cursor:not-allowed}
.design-quiet:hover:not(:disabled){background:#eaf3ff;color:#0e65c8}
.design-viewer{min-height:390px;height:clamp(390px,43vw,590px);background:radial-gradient(circle at top,#f5f8fc,#e4e9f0);padding:16px;display:flex;justify-content:center;align-items:center;overflow:hidden;position:relative}
.design-stage{position:relative;touch-action:none;user-select:none;-webkit-user-select:none;border:1px solid #d3d8e1;box-shadow:0 12px 38px #13274533;background:#fff;overflow:visible;flex:0 0 auto}
.design-stage canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.design-selection{position:absolute;z-index:4;border:1.6px solid #1783f2;box-shadow:0 0 0 1px #fff6;pointer-events:none}
.design-handle{width:15px;height:15px;background:#fff;border:2px solid #177fea;border-radius:4px;position:absolute;pointer-events:auto;box-shadow:0 2px 5px #2a4e7355;touch-action:none}
.design-handle-e{right:-19px;top:calc(50% - 8px);cursor:ew-resize}
.design-handle-s{bottom:-19px;left:calc(50% - 8px);cursor:ns-resize}
.design-handle-se{right:-19px;bottom:-19px;cursor:nwse-resize}
.design-canvas-foot{padding:12px 15px;font-size:10px;color:#71849b;display:flex;justify-content:space-between;gap:8px;line-height:1.55}
.design-canvas-foot span:first-child{font-weight:800;color:#304d70;white-space:nowrap}
.design-artwork-banner{padding:14px 17px;margin-top:14px;display:flex;align-items:flex-start;gap:9px;font-size:11px;color:#6682a2;line-height:1.6}
.design-artwork-banner strong{color:#244d7c;min-width:145px;display:flex;align-items:center;gap:6px}
.design-artwork-banner .icon{width:15px;height:15px}
.design-layer-list{display:flex;flex-direction:column;gap:6px;max-height:230px;overflow-y:auto;padding-right:3px}
.design-layer-item{width:100%;border:1px solid #e4eaf1;border-radius:9px;text-align:left;background:#fff;padding:9px;display:flex;align-items:center;gap:8px;color:#314865}
.design-layer-item.selected{border-color:#2978df;background:#edf5ff;color:#0b58b8}
.design-layer-item strong{font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}
.design-layer-item small{font-size:9px;color:#8299b1;display:block;margin-top:4px}
.design-layer-item:before{content:'T';color:inherit;border:1px solid currentColor;border-radius:5px;font-weight:800;display:grid;place-items:center;width:25px;height:25px;flex-shrink:0}
.design-mini-actions{display:flex;gap:6px;margin-top:10px}
.design-mini-actions button{min-width:0;flex:1;background:#f6f9fd;border:1px solid #e0e7ee;border-radius:9px;padding:10px 6px;color:#37618c;font-size:10px;font-weight:800}
.design-mini-actions button:disabled{opacity:.4}
.design-object-settings{border-top:1px solid #e8eef3;margin-top:16px;padding-top:8px;display:flex;flex-direction:column;gap:10px}
.design-object-settings h3{margin-top:8px}
.design-checkbox{flex-direction:row!important;align-items:center;gap:8px!important}
.design-checkbox input{accent-color:#d30020}
.design-field-action{display:flex;align-items:flex-end}
.design-field-action button{width:100%;min-height:39px}
.design-output-actions{border-top:1px solid #e8eef3;margin-top:20px;padding-top:8px;display:flex;flex-direction:column;gap:10px}
.design-output-actions h3{margin-top:6px}
.design-output-actions button{border-radius:9px;padding:12px 9px;font-weight:750;font-size:11px;border:1px solid #dce4ed;background:#fff;color:#274566}
.design-output-actions button.design-main-cta{background:#dc0026;color:#fff;border-color:#d10020;font-size:12px;padding:14px 8px}
.design-output-actions button.design-main-cta:disabled{opacity:.5}
.design-output-actions .design-quiet{background:#f8fafd;text-align:center}
.design-output-actions p{margin:0;font-size:10px;line-height:1.6;color:#8b9aae}
.design-mobile-actions{display:none}
@media(max-width:1260px){.design-shell{grid-template-columns:245px minmax(0,1fr);grid-template-areas:'config center' 'controls center'} .design-config{grid-area:config}.design-center{grid-area:center}.design-controls{grid-area:controls}.design-viewer{height:clamp(360px,49vw,620px)}.design-artwork-banner{flex-direction:column}}
@media(max-width:790px){.topbar{gap:8px;flex-wrap:wrap;height:auto;min-height:78px;padding:10px 12px}.workspace-tabs{order:3;width:100%;justify-content:center;padding:4px}.workspace-tab{flex:1;text-align:center;padding:9px 8px;font-size:11px}.topbar-right{margin-left:auto;gap:6px}.design-shell{display:flex;flex-direction:column;padding:12px 10px 100px;gap:12px}.design-center{order:0;width:100%}.design-config{order:1;width:100%}.design-controls{order:2;width:100%}.design-step-bar{font-size:10px;gap:5px;padding:8px 5px;height:48px;margin-bottom:11px}.step-separator{font-size:13px}.mini-dot{width:17px;height:17px;font-size:10px}.design-canvas-head{padding:15px}.design-canvas-head h1{font-size:17px}.design-state{display:none}.design-canvas-head p{font-size:10px}.design-toolbar{gap:5px;padding:0 10px 10px}.design-quiet{padding:9px 8px;font-size:10px}.design-viewer{height:380px;min-height:280px;padding:10px}.design-canvas-foot{flex-direction:column;font-size:9px;padding:10px}.design-artwork-banner{padding:11px}.design-layouts{grid-template-columns:repeat(4,minmax(0,1fr))}.design-layout-button img{height:50px}.design-mobile-actions{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:8;background:#fffefef3;backdrop-filter:blur(10px);border-top:1px solid #dce4ed;box-shadow:0 -5px 20px #11284322;align-items:center;justify-content:space-between;padding:11px 13px max(11px,env(safe-area-inset-bottom));font-size:12px;font-weight:800}.design-mobile-actions button{background:#d90020;color:#fff;border:0;border-radius:9px;padding:12px;font-weight:750;font-size:12px}body.designer-mode .mobile-export{display:none}}
@media(max-width:435px){.design-layouts{grid-template-columns:repeat(2,minmax(0,1fr))}.design-layout-button img{height:66px}.design-viewer{height:340px}.design-mini-actions button{font-size:9px}.design-artwork-banner span{font-size:10px}}

.design-state.warning{background:#fff4e9;color:#a45609}
@media(max-width:790px){.design-viewer:not(.vertical-artwork){height:245px;min-height:245px}.design-viewer.vertical-artwork{height:460px;min-height:390px}}
@media(max-width:435px){.design-viewer:not(.vertical-artwork){height:225px;min-height:225px}.design-viewer.vertical-artwork{height:440px;min-height:390px}}

.design-zoom-controls{display:flex;align-items:center;gap:4px;padding:3px 5px;border:1px solid #e1e8f1;border-radius:9px;background:#f9fbfe;font-size:11px;font-weight:800;color:#4b6a89}
.design-zoom-controls button{border:0;border-radius:6px;background:#fff;color:#245d9e;min-width:27px;height:27px;font-size:17px;font-weight:800}
.design-zoom-controls output{min-width:42px;text-align:center}
.design-viewer.zoomed{display:block;overflow:auto;text-align:left}
.design-viewer.zoomed .design-stage{margin:14px;}
@media(max-width:790px){.design-handle{width:22px;height:22px;border-radius:6px}.design-handle-e{right:-27px;top:calc(50% - 11px)}.design-handle-s{bottom:-27px;left:calc(50% - 11px)}.design-handle-se{bottom:-27px;right:-27px}}

/* V3.1: distinct PDF action, no change to other export actions. */
.design-output-actions .design-pdf-export{border-color:#bdd3e9;background:#edf5ff;color:#174c80;font-size:11px}
.design-output-actions .design-pdf-export:disabled{opacity:.55;cursor:not-allowed}
.design-output-actions .design-pdf-note{margin:-3px 1px 3px;font-size:10px;color:#71849a;line-height:1.5}