:root{--bg-panel:#f6f8fb;--bg-toolbar:#1f2a44;--ink:#1c2230;--muted:#6b7486;--line:#d9dee8;--accent:#2f6fed;--accent-strong:#1f59d0}*{box-sizing:border-box}html,body{height:100%;margin:0}body{color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}#app{grid-template:"toolbar toolbar""viewport panel"1fr/1fr 320px;height:100dvh;display:grid}#toolbar{background:var(--bg-toolbar);color:#fff;flex-wrap:wrap;grid-area:toolbar;align-items:center;gap:8px;padding:10px 14px;display:flex}.tb-sep{background:#ffffff2e;align-self:stretch;width:1px;margin:2px 3px}#toolbar .brand{letter-spacing:.3px;margin-right:10px;font-size:18px;font-weight:700}#toolbar .spacer{flex:1}#toolbar button.plate-label{color:#b9c6e6;background:0 0;border:1px dashed #b9c6e659;margin-right:4px;font-size:13px}#toolbar button.plate-label:hover{color:#fff;background:#ffffff1a}#add-menu .recent-head{pointer-events:none;color:var(--muted)}.designs-head{pointer-events:none}.design-row{align-items:stretch;gap:2px;display:flex}.design-row.on .design-open{background:#eef3fe}.design-open{flex-direction:column;flex:1;align-items:flex-start;gap:1px;display:flex}.design-open b{font-size:13.5px;font-weight:600}.design-open span{color:var(--muted);font-size:11.5px}.design-act{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:6px;padding:0 9px;font-size:13px}.design-act:hover{color:var(--ink);background:#eef3fe}.design-act.design-del:hover{color:#c0392b;background:#c0392b1a}.designs-new{color:var(--accent-strong);font-weight:600}.printer-card{max-height:92dvh;overflow-y:auto}.printer-list{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px;margin:10px 0 14px;display:grid}.printer-opt{font:inherit;text-align:left;border:1.5px solid var(--line);cursor:pointer;background:#fff;border-radius:10px;flex-direction:column;gap:2px;padding:10px 12px;display:flex}.printer-opt:hover{border-color:var(--accent);background:#f6f9ff}.printer-opt.on{border-color:var(--accent-strong);background:#eef3fe}.printer-opt b{font-size:13.5px}.printer-opt span{color:var(--muted);font-size:12px}.printer-custom{border-top:1px solid var(--line);padding-top:12px;font-size:13.5px}.printer-fields{flex-wrap:wrap;align-items:flex-end;gap:10px;margin-top:8px;display:flex}.printer-fields label{color:var(--muted);flex-direction:column;gap:4px;font-size:12.5px;display:flex}.printer-fields input{width:80px;font:inherit;border:1px solid var(--line);border-radius:8px;padding:7px 9px}.printer-fields button{font:inherit;border:1px solid var(--accent-strong);background:var(--accent);color:#fff;cursor:pointer;border-radius:8px;padding:9px 14px}#toolbar button.printcheck{border-color:#ffffff40}#toolbar button.printcheck.good{color:#c7f5d4;background:#2ea05738;border-color:#50c87899}#toolbar button.printcheck.good:hover{background:#2ea05757}#toolbar button.printcheck.warn{color:#ffe3ad;background:#d69e2e38;border-color:#f0b44699}#toolbar button.printcheck.warn:hover{background:#d69e2e5c}#toolbar button.printcheck.bad{color:#ffd2cc;background:#d6443842;border-color:#f06e64b3}#toolbar button.printcheck.bad:hover{background:#d6443866}#toolbar button{font:inherit;color:#fff;cursor:pointer;white-space:nowrap;background:#ffffff14;border:1px solid #ffffff40;border-radius:8px;flex-shrink:0;padding:7px 12px;font-size:14px}#toolbar button:hover{background:#ffffff2e}#toolbar button.trace-btn{background:#5684d638;border-color:#5684d68c}#toolbar button.trace-btn:hover{background:#5684d65c}#toolbar button.primary{background:var(--accent);border-color:var(--accent-strong)}#toolbar button.primary:hover{background:var(--accent-strong)}#toolbar button:disabled{opacity:.4;cursor:not-allowed}#toolbar button:disabled:hover{background:#ffffff14}.menu-wrap{display:inline-block;position:relative}.menu{z-index:40;border:1px solid var(--line);overscroll-behavior:contain;background:#fff;border-radius:10px;flex-direction:column;min-width:170px;padding:6px;display:flex;position:fixed;overflow-y:auto;box-shadow:0 12px 30px #141e3c33}.menu[hidden]{display:none}#add-menu .menu-item,#designs-menu .menu-item{font:inherit;text-align:left;width:100%;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:7px;padding:9px 10px}#add-menu .menu-item:hover,#designs-menu .menu-item:hover{background:#eef3fe}#add-menu .menu-section,#designs-menu .menu-section{font:inherit;text-align:left;width:100%;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:7px;padding:9px 10px;font-size:13px;font-weight:600}#add-menu .menu-section:hover{background:#eef3fe}.menu-caret{color:var(--muted);width:12px;font-size:10px;display:inline-block}.menu-section-items{flex-direction:column;display:flex}.menu-section-items[hidden]{display:none}#add-menu .menu-section-items .menu-item{padding-left:24px}.menu-divider{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);border-top:1px solid var(--line);margin-top:4px;padding:8px 10px 4px;font-size:11px}.op-hint{z-index:30;pointer-events:none;color:#3a2600;background:#ffb24a;border-radius:999px;max-width:80%;padding:9px 14px;font-size:14px;font-weight:500;position:absolute;top:12px;left:50%;transform:translate(-50%);box-shadow:0 6px 18px #00000040}.measure-hud{z-index:25;pointer-events:none;color:#2a2200;white-space:nowrap;background:#ffd23f;border-radius:7px;padding:4px 9px;font-size:14px;font-weight:700;position:absolute;transform:translate(-50%,-135%);box-shadow:0 4px 12px #0006}.measure-hud .measure-sub{opacity:.8;font-size:11px;font-weight:500;display:block}#toolbar button.active{background:var(--accent);border-color:var(--accent-strong)}#toolbar button.locked{opacity:.78}#toolbar button.locked:after{content:" 🔒";font-size:11px}#toolbar button.unlock-btn{color:#2a2200;background:#f0a500;border-color:#c98800;font-weight:700}#toolbar button.unlock-btn:hover{background:#ffb71a}#toolbar button.pro-badge{color:#c7f5d4;background:#2ea05738;border-color:#50c87899;font-weight:600}#toolbar button.pro-badge:hover{background:#2ea05757}.unlock-overlay{z-index:60;background:#0a0e16b8;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.unlock-card{color:var(--ink);background:#fff;border-radius:14px;max-width:440px;padding:24px 26px;box-shadow:0 20px 60px #00000080}.unlock-card h2{margin:0 0 10px;font-size:20px}.unlock-card p{margin:0 0 12px;font-size:14px;line-height:1.5}.unlock-price{color:var(--accent-strong);font-weight:700}.unlock-buy{color:#2a2200;background:#f0a500;border-radius:9px;margin-bottom:14px;padding:9px 16px;font-weight:700;text-decoration:none;display:inline-block}.unlock-buy:hover{background:#ffb71a}.unlock-key{gap:8px;margin-top:6px;display:flex}.unlock-key input{font:inherit;border:1px solid var(--line);border-radius:8px;flex:1;padding:9px 10px}.unlock-key button{font:inherit;border:1px solid var(--accent-strong);background:var(--accent);color:#fff;cursor:pointer;border-radius:8px;padding:9px 16px}.unlock-msg{color:var(--muted);min-height:18px;margin-top:8px;font-size:13px}.unlock-note{color:var(--muted);border:1px solid var(--line);background:#f6f8fb;border-radius:8px;padding:8px 10px;font-size:13px;line-height:1.45}.unlock-close{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;margin-top:14px;text-decoration:underline}.unlock-ctx{color:#7a5b00;background:#fff7e6;border:1px solid #f0c674;border-radius:8px;margin:0 0 12px;padding:8px 11px;font-size:14px}.cutter-warn{color:#9c3b22;background:#fff0ed;border:1px solid #f3b4a6;border-radius:8px;padding:8px 10px;font-size:13px;line-height:1.45}#toolbar button.help-btn{background:#ffffff29;border-color:#fff6}.help-overlay{z-index:65;background:#0a0e16b8;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.help-card{color:var(--ink);background:#fff;border-radius:14px;max-width:560px;max-height:92vh;padding:26px 28px;position:relative;overflow:auto;box-shadow:0 20px 60px #00000080}.help-card h2{margin:0 0 10px;font-size:22px}.help-lead{margin:0 0 14px;font-size:15px;line-height:1.5}.help-or{color:#5b6473;margin-top:16px;font-size:14px}.help-start{background:#5684d61a;border:1px solid #5684d659;border-radius:10px;flex-wrap:wrap;align-items:center;gap:14px;margin:0 0 4px;padding:12px 14px;display:flex}.help-start-txt{flex:200px;font-size:14px;line-height:1.45}.help-start-trace{font:inherit;background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;flex-shrink:0;padding:9px 14px;font-size:14px;font-weight:600}.help-start-trace:hover{background:var(--accent-strong)}.help-steps{margin:0 0 16px;padding-left:22px}.help-steps li{margin-bottom:10px;font-size:14px;line-height:1.5}.help-tips{background:var(--bg-panel);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:13.5px}.help-tips+.help-tips{margin-top:10px}.help-tips ul{margin:8px 0 0;padding-left:20px}.help-tips li{margin-bottom:6px;line-height:1.45}.help-foot{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.help-example{font:inherit;border:1.5px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:10px;flex:180px;padding:12px;font-size:14.5px;font-weight:600}.help-example:hover{border-color:var(--accent);background:#f6f9ff}.help-done{width:auto;font:inherit;border:1px solid var(--accent-strong);background:var(--accent);color:#fff;cursor:pointer;border-radius:10px;flex:220px;margin-top:0;padding:12px;font-size:15px;font-weight:600;display:block}.help-done:hover{background:var(--accent-strong)}.help-x{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:18px;position:absolute;top:12px;right:14px}#viewport{grid-area:viewport;min-width:0;position:relative;overflow:hidden}#viewport canvas{touch-action:none;display:block}.mode-rail{z-index:29;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f141ddb;border:1px solid #9fb0d042;border-radius:10px;flex-direction:column;gap:6px;width:92px;padding:6px;display:flex;position:absolute;top:58px;left:12px;box-shadow:0 12px 26px #00000047}.mode-rail button{color:#dce6f7;min-height:34px;font:inherit;text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:7px;padding:7px 8px;font-size:12px;font-weight:700}.mode-rail button:disabled{opacity:.38;cursor:not-allowed}.mode-rail button:disabled:hover{color:#dce6f7;background:0 0;border-color:#0000}.view-controls{z-index:28;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#10141cc2;border:1px solid #9fb0d047;border-radius:8px;gap:4px;padding:4px;display:flex;position:absolute;top:12px;left:12px;box-shadow:0 6px 18px #00000042}.view-controls button{color:#dce6f7;min-width:44px;min-height:30px;font:inherit;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;padding:6px 9px;font-size:12px;font-weight:650}.view-controls button:hover,.view-controls button.active{color:#fff;background:#4f9cf93d;border-color:#4f9cf985}.cut-panel{z-index:32;color:#f5f8ff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f141de6;border:1px solid #ffb24a94;border-radius:10px;align-items:center;gap:10px;max-width:min(680px,100% - 230px);padding:8px 10px 8px 12px;display:flex;position:absolute;top:12px;right:16px;box-shadow:0 14px 30px #00000057}.cut-panel[hidden]{display:none}.cut-panel strong{font-size:13px;display:block}.cut-panel span{color:#b8c5dd;margin-top:1px;font-size:12px;display:block}.cut-panel button{color:#fff;min-height:32px;font:inherit;cursor:pointer;background:#ffffff0f;border:1px solid #9fb0d057;border-radius:7px;padding:6px 10px;font-size:12px;font-weight:700}.cut-panel button.primary{color:#2b1d04;background:#ffb24a;border-color:#d99131}.cut-invert{color:#dce6f7;white-space:nowrap;align-items:center;gap:6px;font-size:12px;font-weight:650;display:inline-flex}.selection-box{z-index:35;pointer-events:none;background:#ffd23f29;border:2px solid #ffd23f;position:absolute;box-shadow:0 0 0 1px #2a220059}.selection-box.preview{background:#ffb24a21;border-color:#ffb24a;display:block;box-shadow:0 0 0 1px #ffb24a80,0 0 26px #ffb24a29}.print-strip{z-index:27;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f141dd6;border:1px solid #9fb0d03d;border-radius:10px;align-items:center;gap:7px;min-height:38px;padding:6px;display:flex;position:absolute;bottom:14px;left:118px;right:16px;box-shadow:0 10px 24px #0000004d}.print-strip button,.print-strip span{min-height:26px;font:inherit;white-space:nowrap;border-radius:7px;align-items:center;padding:5px 9px;font-size:12px;font-weight:700;display:inline-flex}.print-strip button{color:#eaf2ff;cursor:pointer;background:#4f9cf92e;border:1px solid #4f9cf973}.print-strip span{color:#aebbd2;background:#ffffff0d;border:1px solid #9fb0d02e}.print-strip .ok{color:#d8ffe3;background:#2ea05733;border-color:#50c8787a}.print-strip .warn{color:#ffe5bd;background:#ffb24a2e;border-color:#ffb24a8f}.print-strip .bad{color:#ffd8d3;background:#d6443838;border-color:#ff695a99}.loading{color:#9fb0d0;text-align:center;justify-content:center;align-items:center;padding:24px;font-size:15px;display:flex;position:absolute;inset:0}#importing-overlay{z-index:20;color:#dce6f7;background:#0a0e16b8}.progress-card{text-align:center;background:#141c2cf5;border:1px solid #2a3a5c;border-radius:12px;min-width:260px;max-width:80%;padding:20px 26px;box-shadow:0 14px 40px #00000073}.progress-title{color:#eef3fe;margin-bottom:6px;font-size:15px;font-weight:600}.progress-phase{color:#9fb0d0;min-height:18px;margin-bottom:14px;font-size:13px}.progress-bar{background:#1b2740;border-radius:999px;height:6px;overflow:hidden}.progress-bar-fill{background:var(--accent);border-radius:999px;width:35%;height:100%;animation:1.1s ease-in-out infinite indeterminate}@keyframes indeterminate{0%{transform:translate(-100%)}to{transform:translate(300%)}}.progress-time{min-height:14px;margin-top:10px;font-size:12px}#panel{border-left:1px solid var(--line);background:var(--bg-panel);grid-area:panel;padding:14px;overflow:auto}.panel-section{margin-bottom:20px}.panel-title{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin:0 0 8px;font-size:13px}.panel-hint{color:var(--muted);margin:0 0 10px;font-size:13px;line-height:1.4}.panel-subhead{color:var(--muted);text-transform:uppercase;letter-spacing:.4px;margin:14px 0 8px;font-size:12px;font-weight:600}.panel-collapse{border-top:1px solid var(--line)}.panel-collapse-head{cursor:pointer;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;-webkit-user-select:none;user-select:none;align-items:center;gap:7px;padding:11px 2px 9px;font-size:12px;font-weight:600;list-style:none;display:flex}.panel-collapse-head::-webkit-details-marker{display:none}.panel-collapse-head:before{content:"▸";color:var(--muted);font-size:9px;transition:transform .12s}.panel-collapse[open]>.panel-collapse-head:before{content:"▾"}.panel-collapse-head:hover{color:var(--accent-strong)}.panel-collapse[open]>.panel-subhead:first-of-type{margin-top:4px}.shape-list{flex-direction:column;gap:4px;display:flex}.shape-row{border:1px solid var(--line);background:#fff;border-radius:8px;align-items:center;display:flex;overflow:hidden}.shape-name{text-align:left;font:inherit;cursor:pointer;background:0 0;border:0;flex:1;padding:9px 10px}.shape-del{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;padding:9px 11px}.shape-del:hover{color:#c0392b}.shape-ren{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;padding:9px 7px}.shape-ren:hover{color:var(--accent-strong)}.shape-rename{font:inherit;border:1px solid var(--accent);border-radius:7px;outline:none;flex:1;margin:1px;padding:8px 10px}.select-all-btn{font:inherit;border:1px solid var(--line);width:100%;color:var(--accent-strong);cursor:pointer;background:#fff;border-radius:8px;margin-bottom:8px;padding:7px;font-size:13px}.select-all-btn:hover{background:#eef3fe}.field{justify-content:space-between;align-items:center;gap:10px;margin-bottom:9px;display:flex}.field-label{font-size:14px}.field-input{width:110px;font:inherit;border:1px solid var(--line);border-radius:7px;padding:7px 9px}.field-text{width:150px}.mirror-row{flex-wrap:wrap;gap:6px;display:flex}.mirror-btn{font:inherit;border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:7px;padding:7px 9px;font-size:13px}.mirror-btn:hover{background:#eef3fe}.mirror-btn.on{background:var(--accent);color:#fff;border-color:var(--accent-strong)}.repair-btn{width:100%;padding:10px;font-weight:600}.color-row{flex-wrap:wrap;align-items:center;gap:6px;margin:2px 0 4px;display:flex}.color-swatch{border:1px solid var(--line);cursor:pointer;width:26px;height:26px;font:inherit;color:var(--muted);border-radius:6px;padding:0;line-height:1}.color-swatch.on{outline:2px solid var(--accent);outline-offset:1px}.color-none{background:#fff}.color-custom{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:6px;width:30px;height:28px;padding:0}.align-btn{width:100%;margin-bottom:8px}.field select.field-input{width:150px}.size-readout{background:#eef3fe;border:1px solid #cddbf8;border-radius:8px;margin-top:12px;padding:10px 12px;font-size:14px;line-height:1.45}.size-readout .muted{color:var(--muted);font-size:12px}.muted{color:var(--muted)}.converter-pop{z-index:50;border:1px solid var(--line);background:#fff;border-radius:10px;width:230px;padding:12px;position:fixed;box-shadow:0 10px 30px #141e3c2e}.conv-title{margin-bottom:10px;font-weight:600}.conv-row{justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.conv-row input{width:110px;font:inherit;border:1px solid var(--line);border-radius:7px;padding:6px 8px}.conv-note{color:var(--muted);margin-top:2px;font-size:12px}.trace-overlay{z-index:70;background:#0a0e16b8;justify-content:center;align-items:center;padding:18px;display:flex;position:fixed;inset:0}.trace-card{color:var(--ink);background:#fff;border-radius:14px;width:min(960px,96vw);max-height:94vh;padding:18px 20px;overflow:auto;box-shadow:0 20px 60px #00000080}.trace-head{justify-content:space-between;align-items:center;display:flex}.trace-head h2{margin:0;font-size:19px}.trace-x{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;padding:2px 6px;font-size:18px}.trace-steps{flex-wrap:wrap;gap:8px;margin:12px 0 8px;display:flex}.trace-tool{font:inherit;border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:8px;padding:7px 12px;font-size:13px}.trace-tool:hover{background:#eef3fe}.trace-instruct{color:var(--ink);min-height:38px;margin:4px 0 10px;font-size:13px;line-height:1.5}.trace-stage{border:1px solid var(--line);background:#f1f4f9;border-radius:10px;justify-content:center;display:flex;overflow:hidden}.trace-stage[hidden]{display:none}.trace-canvas{cursor:crosshair;touch-action:none;max-width:100%;height:auto;display:block}.trace-controls{flex-wrap:wrap;align-items:flex-end;gap:18px;margin-top:12px;display:flex}.trace-field{flex-direction:column;gap:4px;font-size:13px;display:flex}.trace-inwrap{color:var(--muted);align-items:center;gap:6px;display:inline-flex}.trace-field input{width:90px;font:inherit;border:1px solid var(--line);border-radius:8px;padding:7px 9px}.trace-status{min-width:220px;color:var(--muted);flex:1;font-size:12px;line-height:1.5}.trace-foot{justify-content:flex-end;gap:10px;margin-top:14px;display:flex}.trace-cancel{font:inherit;border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:8px;padding:9px 16px}.trace-make{font:inherit;border:1px solid var(--accent-strong);background:var(--accent);color:#fff;cursor:pointer;border-radius:8px;padding:9px 18px}.trace-make:disabled{opacity:.5;cursor:not-allowed}.trace-card-wide{width:min(1040px,97vw)}.trace-stepbar{flex-wrap:wrap;gap:6px;margin:10px 0 6px;display:flex}.trace-step{font:inherit;border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:999px;padding:6px 11px;font-size:12.5px}.trace-step:hover{background:#eef3fe}.trace-step.on,.trace-tool.primary{background:var(--accent);border-color:var(--accent-strong);color:#fff}.trace-tool.trace-cta{padding:14px 24px;font-size:16px;font-weight:600}.trace-start{flex-wrap:wrap;gap:14px;width:100%;display:flex}.trace-start-opt{text-align:left;font:inherit;border:1.5px solid var(--line);cursor:pointer;background:#fff;border-radius:12px;flex-direction:column;flex:240px;align-items:flex-start;gap:6px;padding:18px 20px;transition:border-color .12s,background .12s,box-shadow .12s;display:flex}.trace-start-opt:hover{border-color:var(--accent);background:#f6f9ff;box-shadow:0 2px 10px #5684d61f}.trace-start-ico{font-size:30px;line-height:1}.trace-start-title{color:var(--ink);font-size:16px;font-weight:700}.trace-start-desc{color:var(--muted);font-size:13px;line-height:1.45}.trace-tool.on{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}.trace-divider{width:100%;color:var(--muted);border-top:1px solid var(--line);margin-top:4px;padding-top:8px;font-size:12px;font-weight:600}.trace-hint{width:100%;color:var(--muted);margin:2px 0;font-size:12.5px;line-height:1.45}.trace-slider{align-items:center;gap:8px;min-width:220px;font-size:12.5px;display:flex}.trace-slider span{white-space:nowrap}.trace-slider input[type=range]{flex:1}.trace-slider b{text-align:right;min-width:30px;color:var(--accent-strong)}.trace-hole-row{align-items:center;gap:8px;width:100%;font-size:13px;display:flex}.trace-tool.trace-hole-del{color:#c0392b;border-color:#c0392b66;margin-left:auto;padding:6px 11px}.trace-tool.trace-hole-del:hover{background:#c0392b1a}.trace-measure{border-top:1px dashed var(--line);flex-wrap:wrap;align-items:flex-end;gap:12px;width:100%;padding:4px 0;display:flex}.trace-measure-lbl{color:var(--muted);min-width:120px;font-size:12.5px}.trace-foot-nav{gap:8px;display:inline-flex}.trace-back,.trace-next{font:inherit;border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:8px;padding:9px 14px}.trace-back:disabled,.trace-next:disabled{opacity:.45;cursor:not-allowed}.trace-foot{justify-content:space-between}.panel-fab,.panel-scrim{display:none}@media (width<=760px),(width<=950px) and (pointer:coarse){#app{grid-template-columns:1fr;grid-template-areas:"toolbar""viewport"}#toolbar{padding:8px 10px;padding-top:max(8px, env(safe-area-inset-top));gap:6px}#toolbar .brand{margin-right:4px;font-size:16px}#toolbar button{padding:9px 12px;font-size:13px}#toolbar .spacer,#toolbar .plate-label,.tb-sep{display:none}#panel{border-left:0;border-top:1px solid var(--line);z-index:40;height:72dvh;padding-bottom:max(16px, env(safe-area-inset-bottom));border-radius:16px 16px 0 0;transition:transform .22s;position:fixed;bottom:0;left:0;right:0;transform:translateY(102%);box-shadow:0 -12px 30px #00000047}#app.panel-open #panel{transform:translateY(0)}#panel:before{content:"";background:var(--line);border-radius:999px;width:40px;height:4px;margin:2px auto 12px;display:block}.panel-scrim{z-index:35;background:#0a0e1666;display:block;position:fixed;inset:0}.panel-scrim[hidden]{display:none}.panel-fab{right:14px;bottom:max(132px, calc(env(safe-area-inset-bottom) + 132px));z-index:30;font:inherit;border:1px solid var(--accent-strong);background:var(--accent);color:#fff;cursor:pointer;border-radius:999px;padding:13px 20px;font-size:15px;font-weight:600;display:block;position:absolute;box-shadow:0 6px 18px #0000004d}#app.panel-open .panel-fab{display:none}.field-input,.mirror-btn,.color-swatch{min-height:36px}.field-input{font-size:16px}.trace-card,.trace-card-wide,.unlock-card{border-radius:0;width:100vw;max-width:100vw;max-height:100dvh}.trace-overlay,.unlock-overlay{padding:0}.trace-tool,.trace-step,.trace-make,.trace-cancel,.trace-back,.trace-next{padding:11px 15px}.op-hint{max-width:86vw;font-size:13px}.mode-rail{top:auto;left:10px;right:10px;bottom:max(70px, calc(env(safe-area-inset-bottom) + 70px));flex-direction:row;width:auto;overflow-x:auto}.mode-rail button{text-align:center;min-width:74px}.view-controls{max-width:calc(100vw - 20px);top:10px;left:10px;overflow-x:auto}.cut-panel{flex-wrap:wrap;max-width:none;top:54px;left:10px;right:10px}.print-strip{left:10px;right:10px;bottom:max(16px, env(safe-area-inset-bottom));overflow-x:auto}.print-strip button,.print-strip span{flex:none}}:root{--shell:#f8fafc;--shell-2:#fff;--shell-line:#d8dee9;--cad-blue:#2563eb;--cad-blue-soft:#eef4ff;--cad-green:#24a05a;--viewport-dark:#10161f;--viewport-dark-2:#17202b}#app{background:var(--shell);grid-template:"toolbar toolbar"80px"viewport panel"minmax(0,1fr)"workflow workflow"104px/minmax(0,1fr) 480px}#toolbar{color:#172033;border-bottom:1px solid var(--shell-line);background:linear-gradient(#fff,#f7f9fd);flex-wrap:nowrap;gap:18px;height:80px;padding:0 28px;position:relative;box-shadow:0 1px 8px #141e3214}#toolbar .brand{color:#1657b8;letter-spacing:-.8px;margin-right:20px;font-size:34px;font-weight:800}.top-menu-label,#toolbar button.help-btn{color:#202938;order:2;font-size:15px;font-weight:550}.top-menu-label{white-space:nowrap}#toolbar button.top-menu-btn{box-shadow:none;background:0 0;border-color:#0000;padding:8px 9px}#toolbar button.top-menu-btn[aria-expanded=true]{color:var(--cad-blue);background:var(--cad-blue-soft)}.top-dropdown{z-index:90;border:1px solid var(--shell-line);background:#fff;border-radius:10px;min-width:210px;padding:7px;position:fixed;box-shadow:0 18px 46px #141e3233}.top-dropdown[hidden]{display:none}.top-dropdown button{color:#172033;width:100%;min-height:34px;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:7px;justify-content:space-between;align-items:center;gap:12px;padding:8px 10px;font-size:14px;display:flex}.top-dropdown button:hover,.top-dropdown button:focus-visible{background:var(--cad-blue-soft);color:var(--cad-blue);outline:none}.top-dropdown button:disabled{color:#a7b0bf;cursor:not-allowed}.top-dropdown button:disabled:hover{color:#a7b0bf;background:0 0}.top-dropdown-sep{background:var(--shell-line);height:1px;margin:6px 3px}#toolbar .tb-sep,#toolbar #btn-trace,#toolbar #btn-duplicate,#toolbar #btn-split,#toolbar #btn-box-erase,#toolbar #btn-join,#toolbar #btn-cut,#toolbar #btn-measure,#toolbar #btn-convert,#toolbar #btn-printcheck,#toolbar #plate-label,#toolbar #btn-export-3mf,#toolbar #btn-unlock,#toolbar #btn-add{display:none}#toolbar .spacer{flex:1;order:7}#toolbar #btn-import{order:8}#toolbar #btn-save{order:9}#toolbar #btn-export{order:10}#toolbar #btn-undo{order:5;margin-left:auto}#toolbar #btn-redo{order:6}#toolbar #designs-wrap{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}#toolbar button,#toolbar button.help-btn{color:#202938;background:0 0;border:1px solid #0000;border-radius:8px;padding:9px 12px}#toolbar button:hover,#toolbar button.help-btn:hover{color:var(--cad-blue);background:#eef4ff}#toolbar #btn-designs{text-overflow:ellipsis;color:#202938;background:0 0;border:0;max-width:280px;font-weight:650;overflow:hidden}#toolbar #btn-import,#toolbar #btn-save,#toolbar #btn-undo,#toolbar #btn-redo{color:#3b4556;border-color:#0000;place-items:center;width:42px;min-width:42px;height:42px;padding:0;font-size:0;display:inline-grid}#toolbar #btn-import:before{content:"⇧";font-size:27px;line-height:1}#toolbar #btn-save:before{content:"▣";font-size:22px;line-height:1}#toolbar #btn-undo:before{content:"↶";font-size:30px;line-height:1}#toolbar #btn-redo:before{content:"↷";font-size:30px;line-height:1}#toolbar #btn-import.locked:after,#toolbar #btn-save.locked:after{display:none}#toolbar #btn-export.primary{background:var(--cad-blue);color:#fff;border-color:#1d4ed8;border-radius:8px;justify-content:center;align-items:center;min-width:170px;height:46px;padding:0 22px;font-size:17px;font-weight:700;display:inline-flex;box-shadow:0 8px 18px #2563eb38}#toolbar #btn-export.primary:hover{color:#fff;background:#1d4ed8}#viewport{background:radial-gradient(circle at 50% 10%, #3e506647, transparent 34%), linear-gradient(145deg, var(--viewport-dark-2), var(--viewport-dark))}.mode-rail{border:0;border-right:1px solid var(--shell-line);-webkit-backdrop-filter:none;backdrop-filter:none;background:#f9fbff;border-radius:0;gap:14px;width:136px;padding:34px 14px;top:0;bottom:0;left:0;box-shadow:5px 0 20px #141e3214}.mode-rail button{color:#243044;text-align:center;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:9px;min-height:86px;font-size:15px;display:flex}.mode-rail button span{overflow-wrap:normal;word-break:normal;max-width:100%;line-height:1.15}.mode-rail button:before{color:currentColor;font-size:33px;line-height:1;display:block}.mode-rail button[data-mode=select]:before{content:"➤";transform:rotate(-25deg)}.mode-rail button[data-mode=add]:before{content:"⊞"}.mode-rail button[data-mode=cut]:before{content:"▣"}.mode-rail button[data-mode=arrange]:before{content:"▤"}.mode-rail button[data-mode=measure]:before{content:"⌁"}.mode-rail button[data-mode=trace]:before{content:"◌"}.mode-rail button:hover,.mode-rail button.active{color:var(--cad-blue);background:var(--cad-blue-soft);border-color:#0000}.mode-rail button:disabled{color:#a7b0bf;opacity:1}.mode-rail button:disabled:hover{color:#a7b0bf;background:0 0}.view-controls{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;flex-direction:column;gap:6px;padding:0;top:220px;left:auto;right:22px}.view-controls button{color:#eef3fe;background:#131b26db;border:1px solid #9fb0d047;min-width:92px;min-height:40px;box-shadow:0 8px 18px #00000038}.view-controls button:hover,.view-controls button.active{background:#2563eb47;border-color:#7da5ffb8}.cut-panel{background:#111822db;border-color:#9eacc147;border-radius:8px;flex-wrap:wrap;align-items:center;min-width:300px;max-width:370px;padding:12px 14px;top:30px;left:166px;right:auto}.cut-panel:before{content:"Operation";color:#c7d0df;flex:0 0 100%;font-size:13px;font-weight:750}.cut-panel>div{border-top:1px solid #9eacc142;flex:180px;padding-top:8px}.cut-panel strong{font-size:14px}.cut-panel span{color:#d7dfec}.cut-choice-panel button{flex:120px}#panel{border-left:1px solid var(--shell-line);background:#f8fafc;padding:0}#panel .panel-section{border-bottom:1px solid var(--shell-line);margin:0;padding:18px 26px}.panel-selected-head{border-bottom:1px solid var(--shell-line);background:#fff;justify-content:space-between;align-items:center;gap:12px;min-height:72px;padding:0 26px;font-size:18px;font-weight:750;display:flex}.panel-selected-head span{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.panel-selected-icons{color:#637083;gap:16px;font-size:24px;line-height:1;display:inline-flex}.panel-title{letter-spacing:.8px;color:#667287;font-size:13px}.shape-row,.field-input,.mirror-btn,.select-all-btn,.size-readout{border-radius:6px}.shape-row.selected{border-color:var(--cad-blue);box-shadow:0 0 0 1px var(--cad-blue)}.mirror-btn:hover,.select-all-btn:hover{background:var(--cad-blue-soft)}.align-btn{color:#1d4ed8;border-color:#adc3f8;min-height:46px;font-weight:650}.size-readout{background:#f5f8fd;border-color:#d7deea}#workflow-bar{border-top:1px solid var(--shell-line);background:#fff;grid-area:workflow;grid-template-columns:minmax(420px,1fr) minmax(380px,520px) minmax(220px,420px);align-items:center;gap:26px;padding:16px 32px;display:grid;box-shadow:0 -2px 12px #141e320f}.workflow-steps{grid-template-columns:auto 1fr auto 1fr auto;align-items:center;gap:16px;display:grid}.workflow-step{color:#5c6677;align-items:center;gap:12px;display:inline-flex}.workflow-step b{color:#273244;background:#fff;border:1.5px solid #aeb8c8;border-radius:999px;place-items:center;width:42px;height:42px;font-size:18px;display:inline-grid}.workflow-step.active b{background:var(--cad-blue);border-color:var(--cad-blue);color:#fff}.workflow-step span{color:#1f2937;flex-direction:column;gap:2px;font-size:14px;font-weight:750;display:flex}.workflow-step small{color:#667287;font-size:13px;font-weight:500}.workflow-step.active small{color:var(--cad-blue)}.workflow-line{background:#dbe2ed;min-width:70px;height:1.5px}#workflow-bar .print-strip{min-width:0;min-height:70px;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:#f4fbf6;border:1px solid #c5e6cf;border-radius:8px;justify-content:flex-start;gap:8px;padding:12px 16px;position:static}#workflow-bar .print-strip button{background:var(--cad-green);border-color:var(--cad-green);color:#fff;border-radius:999px;justify-content:center;width:38px;min-height:38px;padding:0;font-size:0}#workflow-bar .print-strip button:before{content:"✓";font-size:23px;line-height:1}#workflow-bar .print-strip button.warn{background:#f59e0b;border-color:#d97706}#workflow-bar .print-strip button.bad{background:#dc2626;border-color:#b91c1c}#workflow-bar .print-strip button.bad:before,#workflow-bar .print-strip button.warn:before{content:"!"}#workflow-bar .print-strip span{color:#647084;background:0 0;border:0;padding:2px 4px}#workflow-bar .print-strip span.ok:first-of-type{color:#1f8c4f;font-size:18px;font-weight:800}#workflow-bar .print-strip span.warn,#workflow-bar .print-strip span.bad{border-radius:5px;padding:4px 7px}.workflow-meta{border-left:1px solid var(--shell-line);color:#647084;padding-left:24px;font-size:13px}.workflow-meta span,.workflow-meta b{display:block}.workflow-meta b{color:#273244;margin-top:6px;font-size:14px}@media (width<=760px),(width<=950px) and (pointer:coarse){#app{grid-template:"toolbar""viewport"minmax(0,1fr)"workflow"/1fr}#toolbar{flex-wrap:wrap;height:auto;min-height:76px;padding:10px 14px}#toolbar .brand{font-size:30px}.top-menu-label{display:none}#toolbar #btn-import,#toolbar #btn-save,#toolbar #btn-undo,#toolbar #btn-redo{width:38px;min-width:38px;height:38px}#toolbar #btn-export.primary{min-width:128px;height:42px;font-size:15px}#toolbar #designs-wrap{display:none}.mode-rail{background:#f9fbffeb;border:1px solid #d8dee973;border-radius:12px;flex-direction:row;width:auto;min-height:70px;padding:8px;inset:auto 10px 86px;overflow-x:auto}.mode-rail button{gap:4px;min-width:82px;min-height:58px;font-size:13px}.mode-rail button:before{font-size:22px}.view-controls{flex-direction:row;max-width:calc(100vw - 24px);top:12px;left:12px;right:auto;overflow-x:auto}.view-controls button{min-width:62px;min-height:36px}.cut-panel{min-width:0;max-width:none;top:60px;left:12px;right:12px}.panel-fab{bottom:172px}#workflow-bar{padding:10px 14px max(12px, env(safe-area-inset-bottom));grid-template-columns:1fr;gap:10px}.workflow-steps,.workflow-meta{display:none}#workflow-bar .print-strip{min-height:52px;overflow-x:auto}#workflow-bar .print-strip button{width:auto;min-width:136px;padding:0 12px;font-size:14px}#workflow-bar .print-strip button:before{content:"";display:none}#workflow-bar .print-strip span{flex:none}}.rotate-hint{display:none}@media (width<=760px) and (orientation:portrait){body:not(.rotate-ok) .rotate-hint{z-index:80;text-align:center;padding:28px;padding-top:max(28px, env(safe-area-inset-top));color:#fff;background:linear-gradient(160deg,#1f2a44,#0f1830);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}}.rotate-hint-card{max-width:320px}.rotate-hint-icon{font-size:60px;animation:2.4s ease-in-out infinite rotateNudge;display:inline-block}@keyframes rotateNudge{0%,55%,to{transform:rotate(0)}72%,88%{transform:rotate(-90deg)}}.rotate-hint h2{margin:16px 0 8px;font-size:22px}.rotate-hint p{color:#cdd7ee;margin:0 0 22px;font-size:15px;line-height:1.55}.rotate-hint-dismiss{font:inherit;color:#fff;cursor:pointer;background:0 0;border:1px solid #fff6;border-radius:999px;padding:10px 18px}.rotate-hint-dismiss:hover{background:#ffffff1a}