: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:100vh;display:grid}#toolbar{background:var(--bg-toolbar);color:#fff;grid-area:toolbar;align-items:center;gap:8px;padding:10px 14px;display:flex;overflow-x:auto}#toolbar .brand{letter-spacing:.3px;margin-right:10px;font-size:18px;font-weight:700}#toolbar .spacer{flex:1}#toolbar .plate-label{color:#b9c6e6;margin-right:4px;font-size:13px}#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.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{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{background:#eef3fe}#add-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}.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-close{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;margin-top:14px;text-decoration:underline}#viewport{grid-area:viewport;min-width:0;position:relative;overflow:hidden}#viewport canvas{display:block}.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}.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-row.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.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}.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}.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-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.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-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}