:root{--bg: #14181d;--panel: #1d232a;--panel2: #242b33;--line: #313a44;--text: #e8ecef;--muted: #8b96a0;--accent: #4fc3ae;--danger: #e4572e;--warm: #f7f4ee;--warm2: #efe9df;--ink: #23282e}*{box-sizing:border-box;margin:0}html,body{height:100%}body{font:14px/1.5 system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text);overflow:hidden}.hidden{display:none!important}.muted{color:var(--muted);font-size:12.5px}.small{font-size:12px}.spacer{flex:1}.gap{width:10px;display:inline-block}.screen{height:100vh;display:flex;flex-direction:column}button,.filebtn{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:6px 12px;cursor:pointer;font:inherit;font-size:13px}button:hover,.filebtn:hover{border-color:var(--accent)}button.active{background:var(--accent);color:#0c1210;border-color:var(--accent);font-weight:600}button.primary{background:var(--accent);color:#0c1210;border-color:var(--accent);font-weight:700}button.primary:hover{filter:brightness(1.08)}button.primary-glow{box-shadow:0 0 0 3px #4fc3ae59;animation:pulse 1.6s infinite}@keyframes pulse{50%{box-shadow:0 0 0 7px #4fc3ae1f}}button.danger{background:#3a231c;border-color:#6b3423;color:#ffb49a}button.danger:hover{border-color:var(--danger)}button.ghost{background:none;border:none;color:var(--muted);font-size:14px}button.ghost:hover{color:var(--text)}button.big{font-size:15px;padding:11px 20px;border-radius:10px}button.ghost-link{background:none;border:none;color:var(--accent);font-size:13px;padding:4px 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span{color:var(--accent)}.tagline{font-size:16.5px;color:#c8d0d7;margin-top:14px;max-width:560px}.hero-ctas{display:flex;gap:12px;margin:22px 0 10px;flex-wrap:wrap}.hero-shot img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line);box-shadow:0 22px 60px #00000073}.hero-caption{text-align:center;color:var(--muted);font-size:12px;margin-top:8px}.home-steps{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin-top:40px}.step-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;font-size:13px;color:#b9c2ca}.step-card i{display:inline-flex;width:26px;height:26px;align-items:center;justify-content:center;background:var(--accent);color:#0c1210;border-radius:50%;font-style:normal;font-weight:800;margin-bottom:8px}.step-card b{display:block;color:var(--text);font-size:14.5px;margin-bottom:4px}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px 24px;display:flex;gap:10px}.card.resume{margin-bottom:26px;flex-direction:row;align-items:center;justify-content:space-between;border-color:#3a5a50}.home-notes{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin-top:26px;color:#aab4bd;font-size:12.5px}.properly-strip{margin-top:36px;padding:16px 20px;background:#1a2320;border:1px solid #2c443a;border-radius:14px;color:#c2cdc7;font-size:13.5px}.properly-strip a{color:var(--accent);cursor:pointer;text-decoration:none;font-weight:700}#homeToast{position:fixed;left:50%;bottom:26px;transform:translate(-50%);background:var(--panel2);border:1px solid var(--accent);border-radius:9px;padding:9px 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ul{padding-left:18px}#pageGrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.page-cell{display:flex;flex-direction:column;gap:6px;padding:8px;background:var(--panel2);border-radius:10px}.page-cell:hover{border-color:var(--accent)}.page-thumb{background:#fff;border-radius:6px;min-height:120px;overflow:hidden}.page-thumb canvas{width:100%;display:block}#traceMain{flex:1;display:flex;min-height:0}#traceSide{width:296px;background:var(--panel);border-right:1px solid var(--line);padding:14px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}#stepList{display:flex;flex-direction:column;gap:5px}#stepList .step{text-align:left;padding:9px 12px;border-radius:9px;background:none;border:1px solid transparent;color:var(--muted);font-weight:600}#stepList .step:hover{color:var(--text)}#stepList .step.active{background:var(--panel2);border-color:var(--accent);color:var(--text)}.hint{background:#20302c;border:1px solid #2f544a;color:#b6dcd2;border-radius:10px;padding:10px 12px;font-size:12.8px}.typepick{display:flex;flex-wrap:wrap;gap:6px}.typepick .lbl{width:100%;color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.06em}.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:20px;font-size:12.5px}.chip i{width:12px;height:12px;border-radius:3px;display:inline-block}.chip.active{border-color:var(--accent);background:#1d332e}.chipwrap{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}#btnStepNext{width:100%;font-weight:700}#autoWrap{display:flex;flex-direction:column;gap:6px;padding:10px;background:#241f33;border:1px solid #4a3d6b;border-radius:10px}button.magic{background:linear-gradient(120deg,#5b4a8a,#3a6b8a);border:none;color:#fff;font-weight:700;padding:9px 12px}button.magic:hover{filter:brightness(1.12)}#zoomCtrls{position:absolute;right:14px;bottom:44px;display:flex;flex-direction:column;gap:6px}#zoomCtrls button{width:36px;height:36px;font-size:17px;padding:0;border-radius:9px;background:color-mix(in srgb,var(--panel) 92%,transparent)}#stepList .step.done:after{content:" ✓";color:var(--accent)}#traceSel{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:8px}#traceSel h4{font-size:13.5px}#traceSel label{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12.5px}#traceCanvasWrap{flex:1;position:relative;min-width:0}#traceCanvas{position:absolute;top:0;right:0;bottom:0;left:0;cursor:crosshair;touch-action:none}#traceToast{position:absolute;left:50%;bottom:20px;transform:translate(-50%);background:var(--panel2);border:1px solid var(--accent);border-radius:9px;padding:9px 16px;opacity:0;transition:.25s;pointer-events:none;max-width:76%;font-size:13.5px}#traceToast.show{opacity:1}#traceToast.show.bad{border-color:var(--danger)}.dialog{position:absolute;left:50%;top:34%;transform:translate(-50%,-50%);background:var(--panel);border:1px solid var(--accent);border-radius:14px;padding:18px;width:min(360px,92%);box-shadow:0 18px 50px #00000080}.dialog h4{margin-bottom:10px;font-size:14.5px}.dialog input[type=number]{width:90px;font-size:16px}#main{position:relative;overflow:hidden;flex:1}#viewport{position:absolute;top:0;right:0;bottom:0;left:0}#viewport canvas{display:block}.panel{position:absolute;top:12px;bottom:12px;width:258px;background:color-mix(in srgb,var(--panel) 92%,transparent);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:12px;padding:12px;overflow-y:auto}#leftPanel{left:12px}.panel h2{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:4px 0 8px}details{margin-bottom:6px}summary{cursor:pointer;padding:6px 8px;background:var(--panel2);border-radius:7px;font-weight:600;font-size:13px}.cat-items{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:8px 2px}.cat-btn{display:flex;flex-direction:column;gap:2px;align-items:flex-start;padding:7px 8px;text-align:left}.cat-btn small{color:var(--muted);font-size:10.5px}.removed-row{display:flex;justify-content:space-between;align-items:center;gap:6px;padding:6px 8px;background:var(--panel2);border-radius:7px;margin-bottom:5px;font-size:12.5px}.removed-row button{padding:3px 8px;font-size:12px}.demo-cta{margin-top:8px;padding:8px 10px;background:#1a2320;border:1px solid #2c443a;border-radius:8px;font-size:12px;color:#b9c8c0}.demo-cta a{color:var(--accent);cursor:pointer;text-decoration:none;font-weight:600}#selPanel{right:12px;top:12px;bottom:auto;max-height:calc(100% - 24px);width:272px;position:absolute;background:color-mix(in srgb,var(--panel) 94%,transparent);border:1px solid var(--line);border-radius:12px;padding:14px;overflow-y:auto}.sel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}#selPanel h3{font-size:14px}.badge{display:inline-block;margin:8px 0 4px;padding:3px 8px;border-radius:6px;font-size:11px;font-weight:700;letter-spacing:.03em}.badge.structural{background:#46231a;color:#ff9d7a}.badge.ok{background:#1d3a30;color:#7ce0c3}.badge.added{background:#17323c;color:#7ac9e8}.dims{color:var(--muted);font-size:12.5px;margin:6px 0}.note{background:#3a3320;border:1px solid #5c5027;color:#e8d48a;font-size:12px;border-radius:7px;padding:7px 9px;margin:8px 0}#selPanel .row{margin:8px 0 0;display:flex;gap:6px}#selPanel .row button{flex:1}.row3{display:flex;gap:6px;margin-top:8px}.row3 label,#selPanel .row label{display:flex;align-items:center;gap:4px;color:var(--muted);font-size:12px}.row3 input,#selPanel .row input{width:58px}#toast{position:absolute;left:50%;bottom:22px;transform:translate(-50%) translateY(20px);background:var(--panel2);border:1px solid var(--accent);color:var(--text);border-radius:9px;padding:9px 16px;opacity:0;transition:.25s;pointer-events:none;font-size:13.5px;max-width:70%}#toast.show{opacity:1;transform:translate(-50%)}#toast.show.bad{border-color:var(--danger)}#coords{position:absolute;right:16px;bottom:14px;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}#hoverTip{position:fixed;z-index:15;background:color-mix(in srgb,var(--panel) 94%,transparent);border:1px solid var(--accent);border-radius:6px;padding:3px 8px;font-size:12px;pointer-events:none;max-width:240px}#walkHint{position:absolute;left:50%;top:16px;transform:translate(-50%);background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:12.5px;color:var(--muted)}.version-save{display:flex;gap:6px;margin-bottom:8px}.version-save input[type=text]{flex:1;min-width:0;font-size:12.5px}.version-save button{padding:5px 12px}@media(max-width:900px){.panel{width:205px}#selPanel{width:225px}#traceSide{width:230px}header .sub{display:none}}@media(max-width:640px){#traceMain{flex-direction:column}#traceSide{width:100%;max-height:34vh;border-right:none;border-bottom:1px solid var(--line)}#stepList{flex-direction:row;flex-wrap:wrap;gap:4px}#stepList .step{padding:6px 9px;font-size:12px}.hint{font-size:12px}#zoomCtrls{bottom:14px}}