:root{--bg:#f4f7fb;--panel:#fff;--ink:#172033;--muted:#6f7b91;--line:#dfe5ef;--primary:#5b6cff;--accent:#0f766e;--dark:#101827;--success:#166534}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}.topbar{height:64px;background:var(--dark);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 26px}.badge{font-size:10px;margin-left:10px;padding:4px 7px;border-radius:20px;background:#33415c;color:#bcd0ff}.app{height:calc(100vh - 64px);display:grid;grid-template-columns:370px 1fr}.library{background:#fff;border-right:1px solid var(--line);overflow:auto}.library-head{position:sticky;top:0;background:#fff;padding:20px;z-index:3;border-bottom:1px solid var(--line)}h1{font-size:22px;margin:0 0 14px}.library input,.library select,.controls input,.controls select,.modal input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;font:inherit}.library select{margin-top:9px}.small-note{margin-top:10px;font-size:12px;line-height:1.45;color:var(--muted)}.notice{margin-top:12px;padding:10px 12px;border-radius:10px;font-size:12px;line-height:1.4}.notice.success{background:#effdf4;color:var(--success);border:1px solid #cdeed9}.cards{padding:12px}.card{display:grid;grid-template-columns:82px 1fr;gap:12px;padding:10px;border:1px solid transparent;border-radius:13px;cursor:pointer;margin-bottom:6px}.card:hover,.card.active{border-color:#aab5ff;background:#f4f5ff}.thumb{height:72px;border-radius:9px;background:#eef1f6;display:flex;align-items:center;justify-content:center;overflow:hidden}.thumb img{width:100%;height:100%;object-fit:contain}.thumb .fallback{font-size:11px;color:var(--muted);text-align:center}.card h3{font-size:14px;margin:5px 0}.meta{font-size:11px;color:var(--muted)}.workspace{min-width:0;overflow:auto}.empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted)}.empty h2{color:var(--ink);margin:8px}.empty-icon{font-size:46px}.editor{display:grid;grid-template-columns:minmax(520px,1fr) 340px;min-height:100%;align-items:start}.preview-wrap{position:relative;padding:16px 16px 18px;background-image:linear-gradient(#e5e9f0 1px,transparent 1px),linear-gradient(90deg,#e5e9f0 1px,transparent 1px);background-size:25px 25px;display:flex;flex-direction:column;min-height:0}.preview-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.preview-stage{height:520px;max-width:760px;width:78%;margin:0 auto;background:rgba(255,255,255,.72);border:1px solid rgba(17,24,39,.08);border-radius:14px;padding:14px;display:flex;align-items:center;justify-content:center}.preview-stage svg{width:auto;height:auto;max-width:100%;max-height:100%;display:block;margin:auto}.controls{background:#fff;border-left:1px solid var(--line);padding:18px;position:sticky;top:0;max-height:calc(100vh - 64px);overflow:auto}.controls h2{margin:5px 0 20px;font-size:22px}.controls label,.modal label{display:block;font-size:12px;font-weight:700;margin:14px 0 6px}.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.button-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.chip{display:inline-block;font-size:10px;background:#eef1ff;color:#4f5ed2;padding:4px 7px;border-radius:20px}.chip.subtle{background:#edf2f7;color:#506078}.btn{border:0;padding:11px 14px;border-radius:10px;font:inherit;font-weight:700;cursor:pointer;text-align:center}.btn.primary{background:var(--primary);color:white}.btn.secondary{background:#fff;border:1px solid #40506b;color:inherit}.btn.accent{background:var(--accent);color:#fff}.btn.tiny{padding:8px 12px;font-size:12px}.controls .btn{width:100%;display:block}.link{text-decoration:none;margin-top:12px}.info{margin-top:16px;padding:12px;background:#f5f7fa;border-radius:10px;font-size:12px;color:var(--muted);line-height:1.5}.warning{font-size:11px;line-height:1.5;color:#8a5b16;background:#fff8e8;padding:10px;border-radius:9px}.hidden{display:none!important}.modal{position:fixed;inset:0;background:rgba(8,15,29,.55);display:grid;place-items:center;z-index:10}.modal-card{width:min(460px,calc(100% - 30px));background:#fff;padding:22px;border-radius:16px}.modal-title{display:flex;align-items:center;justify-content:space-between}.modal-title h2{margin:0}.modal-title button{font-size:26px;border:0;background:transparent;cursor:pointer}@media(max-width:900px){.app{grid-template-columns:300px 1fr}.editor{grid-template-columns:1fr}.controls{border-left:0;border-top:1px solid var(--line)}}

.top-import{background:#fff;color:#111827;border:1px solid #dbe2ec;padding:10px 16px;border-radius:10px;font-weight:800;min-width:150px}.top-import:hover{background:#f3f6fb}.topbar .btn{color:#111827}
.locked-size{margin-top:14px;padding:12px;border:1px solid #dbe4f0;border-radius:12px;background:#f8fafc}.locked-size-title{display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:800;margin-bottom:8px}.locked-size-title span{font-size:9px;padding:4px 7px;border-radius:999px;background:#dcfce7;color:#166534}.locked-size p{font-size:11px;line-height:1.4;color:var(--muted);margin:8px 0 0}.controls input[readonly]{background:#eef2f7;color:#334155;font-weight:800;cursor:not-allowed}
.outline-card{background:#fff7ed;border-color:#fed7aa}.outline-card .locked-size-title span{background:#fee2e2;color:#b91c1c}.controls #resetBtn{width:100%}
.scale-card{border-color:#c9d7ff;background:#f7f9ff}.scale-row{display:flex;align-items:center;justify-content:space-between;margin-top:10px}.scale-row span{font-weight:800;color:#4f5ed2}.join-handle{fill:#35a853;stroke:#0d5f29;stroke-width:.5;cursor:grab;vector-effect:non-scaling-stroke}.join-handle:active{cursor:grabbing}.zoom-label{display:inline-block;min-width:46px;text-align:center;font-size:12px;font-weight:700}.preview-toolbar>div{display:flex;align-items:center;gap:6px}.controls>#downloadWorkingBtn,.controls>#resetBtn,.controls>#centreBaseBtn,.controls>#resetJoinsBtn{width:100%;margin-top:10px}.preview-stage{overflow:hidden}

.join-handle.dragging{fill:#facc15;stroke:#854d0e;stroke-width:.8}.preview-stage svg{touch-action:none}.welded-outline{stroke:#ff0000;stroke-linejoin:round;stroke-linecap:round}.outer-outline{stroke-linejoin:round;stroke-linecap:round}

.brand-wrap{display:flex;align-items:center;gap:8px}.loaded-time{font-size:11px;color:#aebbd0;margin-left:4px}.version-status{margin-top:16px;padding:12px;border-radius:10px;background:#ecfdf5;border:1px solid #a7f3d0;color:#166534;font-size:12px;line-height:1.5}.version-status strong{font-size:13px}@media(max-width:700px){.loaded-time{display:none}}
.controls .full-action{width:100%;margin-top:10px}.button-grid .secondary{border-color:#94a3b8}.welded-outline{stroke-width:.3}.preview-stage svg #artworkLayer{opacity:1}

.preview-actions{max-width:900px;width:92%;margin:14px auto 0;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:0 6px 18px rgba(15,23,42,.05)}
.preview-action-grid{display:grid;gap:10px}.preview-action-grid.primary-actions{grid-template-columns:repeat(3,minmax(0,1fr))}.preview-action-grid.secondary-actions{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:10px}.preview-actions .btn{width:100%;display:flex;align-items:center;justify-content:center;text-decoration:none;min-height:44px}.preview-status-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:10px}.preview-status-grid .info,.preview-status-grid .version-status{margin-top:0;min-height:72px}.compact-warning{margin-top:14px}.controls .button-grid,.controls .full-action{display:none!important}
@media(max-width:1200px){.preview-stage{width:90%;height:470px}.preview-actions{width:96%}.preview-status-grid{grid-template-columns:1fr}.editor{grid-template-columns:minmax(480px,1fr) 330px}}
@media(max-width:900px){.controls{position:static;max-height:none;overflow:visible}.preview-stage{height:430px;width:96%}.preview-action-grid.primary-actions,.preview-action-grid.secondary-actions{grid-template-columns:1fr 1fr}.preview-status-grid{grid-template-columns:1fr}.preview-actions{width:100%}}
@media(max-width:600px){.preview-stage{height:360px}.preview-action-grid.primary-actions,.preview-action-grid.secondary-actions{grid-template-columns:1fr}}

.field-note{display:block;margin-top:6px;font-size:11px;font-weight:600;color:var(--muted)}

.library-rename-panel{padding:14px;border:1px solid #c9d7ff;border-radius:12px;background:#f7f9ff}.library-rename-panel label{margin-top:0}.library-download{width:100%;margin-top:14px}.library-help{font-size:11px;line-height:1.45;color:var(--muted);margin:10px 0 0}.simple-library-mode .preview-toolbar .chip{visibility:hidden}.simple-library-mode .preview-actions{display:none}.simple-library-mode .preview-stage{min-height:420px}.simple-library-mode .controls{overflow:auto}

/* v1.1.5 split library / create workflow */
.topbar{height:70px}.top-left{display:flex;align-items:center;gap:24px}.mode-tabs{display:flex;gap:6px}.mode-tab{border:1px solid #334155;background:#172033;color:#cbd5e1;border-radius:9px;padding:9px 14px;font-weight:800;cursor:pointer}.mode-tab.active{background:#fff;color:#111827;border-color:#fff}.app{height:calc(100vh - 70px)}
.local-upload-box{margin-top:18px;border:2px dashed #9aa8bc;border-radius:14px;padding:28px 16px;display:flex;flex-direction:column;align-items:center;gap:7px;text-align:center;cursor:pointer;background:#f8fafc}.local-upload-box:hover{border-color:var(--primary);background:#f4f5ff}.local-upload-box strong{font-size:16px}.local-upload-box span{font-size:12px;color:var(--muted)}.local-file-info{margin-top:14px;padding:12px;background:#eef2ff;border-radius:10px;font-size:12px;line-height:1.5}.create-upload-panel .btn{width:100%;margin-top:12px}
.locked-note{padding:11px;border-radius:9px;background:#eef6ff;border:1px solid #c9d7ff;font-size:11px;line-height:1.45;color:#40506b}.library-rename-panel .btn{margin-top:12px}.library-actions{max-width:760px}.two-actions{grid-template-columns:1fr 1fr}.two-status{grid-template-columns:1fr 1fr}.simple-library-mode .preview-actions.library-actions{display:block}.simple-library-mode .preview-stage{height:520px}.simple-library-mode .controls{overflow:auto}.simple-library-mode .preview-toolbar .chip{visibility:visible}.simple-library-mode #builderActions{display:none!important}
@media(max-width:900px){.topbar{height:auto;min-height:70px;padding:10px 16px}.top-left{align-items:flex-start;flex-direction:column;gap:8px}.app{height:auto}.mode-tabs{width:100%}.mode-tab{flex:1}.two-actions,.two-status{grid-template-columns:1fr}}

/* v1.1.6 local vector trace test */
.trace-editor{display:grid;grid-template-columns:minmax(520px,1fr) 340px;min-height:100%;align-items:start}
.trace-preview-wrap{padding:16px;background-image:linear-gradient(#e5e9f0 1px,transparent 1px),linear-gradient(90deg,#e5e9f0 1px,transparent 1px);background-size:25px 25px;min-height:100%}
.trace-preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:980px;margin:0 auto}
.trace-preview-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;min-height:420px;display:flex;flex-direction:column}
.trace-preview-card h3{font-size:13px;margin:0 0 10px}
.trace-preview-card canvas,.trace-preview-card svg{width:100%;height:100%;max-height:500px;object-fit:contain;display:block;background:#fff}
.trace-actions{max-width:980px;margin:14px auto 0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.trace-actions .btn{min-height:48px}
.trace-actions .info{margin:0}
.trace-actions #traceStatus{grid-column:1 / -1}
.trace-value-row{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted);margin-top:5px}
.trace-value-row strong{color:var(--ink);font-size:14px}
.trace-controls input[type="checkbox"]{width:auto;margin-right:8px}
@media(max-width:1100px){.trace-preview-grid{grid-template-columns:1fr}.trace-preview-card{min-height:340px}.trace-editor{grid-template-columns:minmax(460px,1fr) 330px}}
@media(max-width:900px){.trace-editor{grid-template-columns:1fr}.trace-controls{position:static;max-height:none}.trace-actions{grid-template-columns:1fr}}

/* v1.1.9 library name curve and mouse rotation */
.name-rotation-line{stroke:#f59e0b;stroke-width:.45;stroke-dasharray:2 1;vector-effect:non-scaling-stroke;pointer-events:none}.name-rotation-handle{fill:#f59e0b;stroke:#92400e;stroke-width:.55;cursor:grab;vector-effect:non-scaling-stroke}.name-rotation-handle.dragging,.name-rotation-handle:active{fill:#facc15;cursor:grabbing}.library-rename-panel .row+label{margin-top:12px}

/* v1.2.1 upload + draggable names in both modes */
.library-upload-panel{margin-top:12px;padding:12px;border:1px solid #dbe4f0;border-radius:12px;background:#f8fafc}.library-upload-panel select{margin:0 0 9px}.library-upload-panel .btn{width:100%}.library-upload-panel .small-note{min-height:18px;margin-top:8px}.name-rotation-line{stroke:#f59e0b;stroke-width:.45;stroke-dasharray:2 1;vector-effect:non-scaling-stroke;pointer-events:none}.name-rotation-handle{fill:#f59e0b;stroke:#92400e;stroke-width:.55;cursor:grab;vector-effect:non-scaling-stroke}.name-rotation-handle.dragging{fill:#facc15;cursor:grabbing}#composedPreview .name-draggable{cursor:move}#composedPreview .name-draggable.dragging{cursor:grabbing}

/* v1.2.4 library opt-in name + automatic create defaults */
.library-name-input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:end}
.library-name-input-row .library-name-text{margin:14px 0 0}
.library-name-toggle{display:flex!important;align-items:center;gap:7px;white-space:nowrap;margin:0 0 8px!important;padding:8px 10px;border:1px solid #c9d7ff;border-radius:9px;background:#fff;cursor:pointer}
.library-name-toggle input{width:auto!important;margin:0}
.library-rename-panel input:disabled{background:#eef2f7;color:#94a3b8;cursor:not-allowed}
.btn:disabled{opacity:.55;cursor:not-allowed}

.library-count{font-size:.72em;font-weight:700;color:var(--muted);white-space:nowrap}