:root{--bg: #f6f7f9;--panel: #ffffff;--border: #e4e7ec;--border-strong: #d3d8e0;--text: #1d2433;--muted: #6b7280;--faint: #9aa3b2;--accent: #2563eb;--accent-soft: rgba(37, 99, 235, .1);--accent-border: rgba(37, 99, 235, .35);--danger: #dc2626;--danger-soft: rgba(220, 38, 38, .08);--warn: #b45309;--warn-soft: rgba(180, 83, 9, .08);--ok: #16a34a;--radius: 10px;--radius-sm: 7px;--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 6px 18px rgba(16, 24, 40, .05);--font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;--mono: "SF Mono", "Cascadia Code", Consolas, "Roboto Mono", monospace;--ln-color: #334155;--ln-width: 1.6;--pt-color: #1f2937;--sel-color: #2563eb;--hover-color: #2563eb;--dim-color: #0891b2;--dim-fixed-color: #b45309;--cstr-color: #4f46e5;--conflict-color: #dc2626}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:var(--font);color:var(--text);background:var(--bg);font-size:13px;-webkit-font-smoothing:antialiased}#app{display:flex;flex-direction:column;height:100vh}button{font-family:inherit;cursor:pointer}input,select{font-family:inherit}.toolbar{display:flex;align-items:center;gap:6px;height:42px;padding:0 12px;background:var(--panel);border-bottom:1px solid var(--border);flex-shrink:0;z-index:40;position:relative;box-shadow:0 1px #10182805}.brand{display:flex;align-items:center;gap:6px;margin-right:6px;padding:6px 10px;border:none;background:none;font-weight:600;font-size:16px;color:var(--text);letter-spacing:-.01em}.brand .ico{width:28px;height:28px;stroke:var(--accent)}.brand-logo{width:28px;height:28px;object-fit:contain;display:block;border-radius:8px}.brand-blue{color:var(--accent)}.tb-group{display:flex;align-items:center;gap:3px}.tb-sep{width:1px;height:18px;background:var(--border);margin:0 10px}.tb-spacer{flex:1}.tb-btn{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:var(--radius-sm);background:transparent;color:var(--muted);transition:background .12s ease,color .12s ease,border-color .12s ease,transform .06s ease}.tb-btn:hover{background:#f1f3f7;color:var(--text)}.tb-btn:active{transform:scale(.94)}.tb-btn:disabled{opacity:.35;pointer-events:none}.tb-btn.active{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-border)}.tb-btn .ico{width:22px;height:22px;stroke:currentColor}.tb-btn.text-btn{width:auto;padding:0 6px;font-size:10.5px;font-weight:600}#file-group,#linetype-group{position:relative}#export-group{position:sticky;right:0;z-index:2;background:var(--panel);margin-left:auto}#export-group .file-dropdown{left:auto;right:0}#auth-group{position:sticky;right:0;z-index:2;background:var(--panel)}#linetype-group .file-dropdown{margin-top:2px}.file-button{position:relative;display:inline-flex;align-items:center;gap:4px;padding:5px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--muted);font-size:11px;font-weight:700;cursor:pointer;transition:background .12s ease}.file-button:hover{background:#f1f3f7}.file-button.active{color:var(--accent);border-color:var(--accent-border);background:var(--accent-soft)}.file-button .ico{width:11px;height:11px;stroke:var(--accent)}.file-dropdown{position:absolute;top:100%;left:0;margin-top:2px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 4px 16px 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.cstr-bg{fill:#fffffff0;stroke:var(--cstr-color);stroke-width:1.1;stroke-dasharray:none}svg .cstr-glyph{fill:var(--cstr-color);font-size:11px;font-weight:700;text-anchor:middle;font-family:var(--font)}svg .cstr.conflict .cstr-bg{stroke:var(--conflict-color)}svg .cstr.conflict .cstr-glyph{fill:var(--conflict-color)}svg .cstr.hovered .cstr-bg{stroke:var(--sel-color)}svg .cstr.selected .cstr-bg{stroke:var(--sel-color);stroke-width:2}svg .cstr.selected .cstr-glyph{fill:var(--sel-color)}svg .preview{stroke:var(--accent);stroke-width:1.8;stroke-dasharray:6 5;vector-effect:non-scaling-stroke}svg .preview.snap-on{stroke-width:3.4;stroke-dasharray:none}svg .preview-end{fill:var(--accent)}svg .snap-ring{fill:none;stroke:var(--sel-color);stroke-width:1.6;vector-effect:non-scaling-stroke}svg .snap-cross{stroke:var(--sel-color);stroke-width:1.2;vector-effect:non-scaling-stroke}svg .snap-label-bg{fill:var(--sel-color)}svg 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var(--border);font-size:11px;color:var(--muted);z-index:6;pointer-events:none}.statusbar .st-sep{width:1px;height:12px;background:var(--border)}.statusbar #st-tool{font-weight:650;color:var(--text)}.statusbar #st-hint{margin-left:auto;opacity:.75}.ads-bar{height:60px;background:var(--panel);border-top:1px solid var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:center}.ads-content{color:var(--faint);font-size:12px}.toasts{position:fixed;top:56px;right:16px;display:flex;flex-direction:column;gap:8px;z-index:100;max-width:340px}.toast{display:flex;gap:9px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-left-width:3px;border-radius:var(--radius-sm);padding:10px 12px;box-shadow:var(--shadow);font-size:12.5px;color:var(--text);animation:toast-in .18s ease}.toast.info{border-left-color:var(--accent)}.toast.error{border-left-color:var(--danger)}.toast.warn{border-left-color:var(--warn)}.toast.ok{border-left-color:var(--ok)}.toast b{display:block;font-size:12.5px;margin-bottom:1px}.toast .t-body{line-height:1.5}@keyframes toast-in{0%{opacity:0;transform:translate(10px)}to{opacity:1;transform:none}}.toast.out{animation:toast-out .2s ease forwards}@keyframes toast-out{to{opacity:0;transform:translate(14px)}}.popover{position:fixed;z-index:90;min-width:180px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 10px 30px #10182824;padding:6px;display:flex;flex-direction:column;gap:2px;animation:pop-in .14s ease}@keyframes pop-in{0%{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}.popover .pv-title{font-size:10.5px;font-weight:650;text-transform:uppercase;letter-spacing:.07em;color:var(--faint);padding:4px 8px 2px}.popover button.pv-item{display:flex;align-items:center;gap:8px;text-align:left;padding:7px 9px;border:none;background:none;border-radius:6px;font-size:12.5px;color:var(--text);transition:background .1s ease}.popover button.pv-item:hover{background:#f1f3f7}.popover button.pv-item .g{color:var(--cstr-color);font-weight:700;width:16px;text-align:center}.popover .pv-sep{height:1px;background:var(--border);margin:4px 2px}.popover .pv-foot{display:flex;gap:6px;padding:4px}.popover .pv-input{margin:4px 2px 6px;height:28px;padding:0 9px;border:1px solid var(--border);border-radius:6px;font-size:12.5px;outline:none}.popover .pv-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.popover .pv-note{font-size:11px;color:var(--faint);padding:0 8px 4px;line-height:1.5}.mobile-bar{display:none;position:fixed;bottom:0;left:0;right:0;height:48px;background:var(--panel);border-top:1px solid var(--border);z-index:40;align-items:center;justify-content:center;gap:6px;padding:0 12px;box-shadow:0 -1px #10182805}.mb-btn{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid 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8px;font-size:12.5px;color:var(--text);line-height:1.4}.auth-dd-sep{height:1px;background:var(--border);margin:4px 0}.auth-dd-item{display:flex;align-items:center;gap:6px;width:100%;padding:7px 8px;border:none;background:none;border-radius:6px;font-size:12.5px;color:var(--text);cursor:pointer;transition:background .1s}.auth-dd-item:hover{background:#f1f3f7}.auth-dd-item .ico{width:15px;height:15px}.admin-dashboard-overlay{position:fixed;inset:0;z-index:190;background:var(--bg);overflow-y:auto;opacity:0;pointer-events:none;transition:opacity .2s ease}.admin-dashboard-overlay.open{opacity:1;pointer-events:auto}.admin-dash{max-width:900px;margin:0 auto;padding:0 24px 40px}.admin-dash-header{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--border);margin-bottom:28px}.admin-dash-brand{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:650;color:var(--text)}.admin-dash-brand 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b{color:var(--text)}.admin-lib-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.admin-limit-label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);font-weight:550}.admin-limit-input{width:72px;height:30px;padding:0 8px;border:1px solid var(--border);border-radius:6px;font-size:12.5px;color:var(--text);outline:none}.admin-limit-input:focus{border-color:var(--accent)}.admin-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px}.admin-info-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;display:flex;flex-direction:column;gap:4px}.admin-info-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--faint)}.admin-info-value{font-size:20px;font-weight:650;color:var(--text)}.admin-empty{color:var(--faint);font-size:12.5px;padding:20px;text-align:center}