:root{--accent: #dc2626;--accent-hover: #b91c1c;--accent-light: #fee2e2;--bg: #f5f5f5;--surface: #ffffff;--surface-2: #f0f0f0;--border: #d4d4d4;--text: #1a1a1a;--text-muted: #737373;--badge-stl: #5a3e8a;--badge-obj: #1e6fa0;--badge-warn: #b85c00;--badge-ok: #166534;--radius: 6px;--shadow: 0 1px 3px rgba(0,0,0,.12);--font: system-ui, -apple-system, sans-serif;--font-mono: "Cascadia Code", "Fira Code", monospace}[data-theme=dark]{--bg: #141414;--surface: #1f1f1f;--surface-2: #2a2a2a;--border: #3a3a3a;--text: #e5e5e5;--text-muted:#a3a3a3;--accent-light: #450a0a}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);display:flex;flex-direction:column;font-size:14px}.app-header{background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow);flex-shrink:0}.app-header-inner{max-width:1200px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between}.app-logo{display:flex;align-items:baseline;gap:8px}.logo-vr{font-weight:900;font-size:22px;color:var(--accent);letter-spacing:-1px}.logo-lab{font-weight:700;font-size:22px;color:var(--text);letter-spacing:-1px}.app-title{font-size:14px;color:var(--text-muted);font-weight:500}.app-version{font-size:11px;color:var(--text-muted);background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 6px}.theme-toggle{background:none;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;font-size:16px;padding:4px 8px;color:var(--text);transition:background .15s}.theme-toggle:hover{background:var(--surface-2)}.tab-nav{display:flex;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;padding:0 16px}.tab-btn{padding:10px 18px;border:none;background:none;cursor:pointer;font-size:13px;font-weight:500;color:var(--text-muted);border-bottom:2px solid transparent;transition:color .15s,border-color .15s}.tab-btn:hover{color:var(--text)}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}#app{flex:1;overflow:auto;max-width:1200px;width:100%;margin:0 auto;padding:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}.card-title{font-size:13px;font-weight:700;color:var(--text);margin-bottom:10px}.btn{display:inline-flex;align-items:center;gap:5px;padding:7px 14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px;font-weight:500;cursor:pointer;transition:background .15s;white-space:nowrap}.btn:hover{background:var(--surface-2)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-danger{color:var(--accent);border-color:var(--accent)}.btn-danger:hover{background:var(--accent-light)}.btn-icon{padding:4px 8px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.file-list{display:flex;flex-direction:column;gap:3px;max-height:260px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius);padding:6px;background:var(--surface-2)}.file-row{display:flex;align-items:center;gap:8px;padding:5px 6px;border-radius:4px;background:var(--surface);border:1px solid var(--border)}.file-row.unmatched{opacity:.65}.file-name{flex:1;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-dir{font-size:11px;color:var(--text-muted)}.badge{font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;color:#fff;white-space:nowrap;flex-shrink:0}.badge-stl{background:var(--badge-stl)}.badge-obj{background:var(--badge-obj)}.badge-warn{background:var(--badge-warn)}.badge-ok{background:var(--badge-ok)}.badge-default{background:#1a5276}.progress-wrap{display:flex;align-items:center;gap:10px}.progress-bar-bg{flex:1;height:8px;background:var(--surface-2);border-radius:99px;border:1px solid var(--border);overflow:hidden}.progress-bar-fill{height:100%;background:var(--accent);border-radius:99px;width:0%;transition:width .2s}.progress-pct{font-size:12px;color:var(--text-muted);min-width:36px;text-align:right}.log-panel{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;height:200px;overflow-y:auto;font-family:var(--font-mono);font-size:11px;color:var(--text-muted);line-height:1.6}.log-panel .log-line{white-space:pre-wrap;word-break:break-all}.log-panel .log-error{color:var(--accent)}.log-panel .log-ok{color:#22c55e}.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:24px;text-align:center;color:var(--text-muted);cursor:pointer;transition:border-color .15s,background .15s}.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-light);color:var(--text)}.drop-zone-hint{font-size:12px;margin-top:6px}.form-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}.form-label{font-size:13px;color:var(--text-muted);min-width:140px}.form-input{flex:1;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-size:13px}.form-input:focus{outline:none;border-color:var(--accent)}.form-hint{font-size:11px;color:var(--text-muted)}.data-table{width:100%;border-collapse:collapse;font-size:12px}.data-table th,.data-table td{padding:7px 10px;text-align:left;border-bottom:1px solid var(--border)}.data-table th{font-weight:600;color:var(--text-muted);background:var(--surface-2)}.data-table tr:hover td{background:var(--surface-2)}.data-table td:last-child{white-space:nowrap}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;min-width:360px;max-width:90vw;box-shadow:0 8px 32px #0000003d}.modal-title{font-size:15px;font-weight:700;margin-bottom:16px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.preset-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.preset-name{font-weight:700;font-size:14px}.viewer-wrap{display:flex;gap:12px;height:calc(100vh - 140px);min-height:400px}.viewer-canvas-wrap{flex:1;border-radius:var(--radius);overflow:hidden;background:#111;border:1px solid var(--border)}.viewer-canvas-wrap canvas{display:block;width:100%!important;height:100%!important}.viewer-sidebar{width:200px;flex-shrink:0;display:flex;flex-direction:column;gap:8px}.layer-list{display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1}.layer-item{display:flex;align-items:center;gap:8px;padding:5px 8px;border-radius:4px;border:1px solid var(--border);background:var(--surface);font-size:12px;cursor:pointer}.layer-swatch{width:12px;height:12px;border-radius:2px;flex-shrink:0}.layer-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.flex-gap{gap:8px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.text-muted{color:var(--text-muted)}.text-sm{font-size:12px}