:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#24354d;background:#f5f7fb;font-size:13px;font-synthesis:none}*{box-sizing:border-box}body{margin:0;overflow:auto}button,input,select,textarea{font:inherit}button{cursor:pointer;border:1px solid #dce3ed;background:white;color:#40526a;border-radius:6px;padding:8px 11px;transition:background .15s}button:hover{background:#eff4fd;border-color:#aabedb}button.primary{background:#306deb;color:white;border-color:#306deb}button.danger{color:#c34848}button.active{color:#235dd4;background:#eaf0ff;border-color:#9cb9f6}input,select,textarea{width:100%;border:1px solid #dbe3ed;border-radius:6px;padding:9px;background:#fff;color:#24354d;outline:none}input:focus,select:focus,textarea:focus{border-color:#6294fa;box-shadow:0 0 0 2px #edf2ff}textarea{resize:vertical;font-family:ui-monospace,monospace;line-height:1.6}header{height:76px;display:flex;align-items:center;padding:0 24px;border-bottom:1px solid #dfe6ee;background:white;gap:30px}.brand{display:flex;align-items:center;gap:10px;font-size:30px;color:#306deb;text-decoration:none}.brand span{font-size:22px;font-weight:750;letter-spacing:-.7px}.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:2px;color:#8390a2;margin-top:3px}.project{border-left:1px solid #e5eaf1;padding-left:24px;flex:1}.project input{border:0;padding:0;font-size:15px;font-weight:650;max-width:300px}.project span{display:block;font-size:11px;color:#8b97a7;margin-top:5px}nav{display:flex;gap:8px}.workspace{display:grid;grid-template-columns:var(--left-width,230px) 6px minmax(320px,1fr) 6px var(--right-width,290px);height:calc(100vh - 104px);min-height:550px;min-width:900px}.sidebar,.inspector{background:white;padding:20px 16px;overflow:auto}.sidebar{border-right:1px solid #dfe6ee;position:relative;display:flex;flex-direction:column}.section-title{display:flex;align-items:center;font-size:12px;font-weight:700;color:#52647d;gap:8px;margin-bottom:16px}.section-title span{color:#98a5b6;font-size:11px;font-weight:400}.section-title button{margin-left:auto;padding:3px 7px;font-size:11px}.side-actions{display:flex;gap:6px;margin:12px 0 18px}.side-actions button{flex:1;font-size:12px;padding:8px 4px}.board-row{padding:11px 10px;border-radius:7px;cursor:pointer;margin-bottom:5px;border:1px solid transparent;display:flex;gap:10px;align-items:center}.board-row:hover{background:#f5f8fc}.board-row.selected{background:#edf3ff;border-color:#d8e6ff}.board-icon{background:#eef3fb;color:#4b7bce;width:30px;height:30px;display:grid;place-items:center;border-radius:7px;font-size:18px}.board-row strong{display:block;font-size:12px;font-weight:600}.board-row small{display:block;color:#94a0b0;font-size:10px;margin-top:5px}.template-title{margin-top:25px;padding-top:20px;border-top:1px solid #edf0f5}.template{width:100%;text-align:left;margin-bottom:7px;background:#f9fbfd;border-style:dashed;font-size:12px}.template small{display:block;color:#9aa6b6;font-size:10px;margin-top:5px}.sidebar-bottom{margin-top:auto;padding-top:32px;color:#70829a;font-size:10px;line-height:2}.sidebar-bottom small{color:#a0abba;font-size:10px}.status-dot{display:inline-block;width:6px;height:6px;border-radius:100%;background:#40b999;margin-right:4px}main{display:grid;grid-template-rows:auto minmax(160px,1fr) 6px var(--bottom-height,220px);min-width:0;min-height:0}.canvas-toolbar{height:64px;background:#ffffffcc;border-bottom:1px solid #e4eaf2;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;gap:10px}.canvas-toolbar strong{font-size:14px}.canvas-toolbar span{font-size:10px;color:#98a4b6;margin-left:12px}.canvas-toolbar button{font-size:11px;padding:7px 9px}.canvas-toolbar>div:last-child{display:flex;gap:6px}#canvas{position:relative;min-height:0;height:auto;overflow:hidden;background:#f6f9fd}#graph{width:100%;height:100%;display:block;touch-action:none}.canvas-caption{position:absolute;bottom:18px;left:20px;color:#94a1b3;font-size:10px;pointer-events:none}.zoom{position:absolute;bottom:42px;left:20px;background:white;border:1px solid #e0e6ee;border-radius:7px;display:flex;align-items:center;box-shadow:0 3px 9px #2b4b7010}.zoom button{border:0;background:transparent;font-size:16px}.zoom span{font-size:10px;min-width:35px;text-align:center}.legend{position:absolute;top:16px;left:20px;display:flex;align-items:center;gap:7px;font-size:10px;color:#8492a6}.legend i{width:7px;height:7px;border-radius:50%;margin-left:8px}.connection-panel{display:flex;flex-direction:column;min-height:0;height:auto;background:white;border-top:1px solid #dfe6ee;padding:16px 20px 0}.connection-panel .section-title{flex:none;margin-bottom:10px}.table-scroll{flex:1;min-height:0;overflow:auto;height:auto}table{border-collapse:collapse;width:100%;font-size:11px;white-space:nowrap}th{text-align:left;color:#91a0b2;font-weight:500;background:#f8fafd;padding:9px 12px}td{padding:10px 12px;border-bottom:1px solid #f0f3f7;color:#52647e}tr[data-id]{cursor:pointer}tr[data-id]:hover,tr.selected{background:#edf3ff}td strong{color:#31557b;font-weight:600}td small{color:#8d99aa;margin-left:7px}.inspector{border-left:1px solid #dfe6ee}.inspector h2{font-size:19px;margin:10px 0 5px;word-break:break-word}.eyebrow{font-size:10px;color:#8398b3;letter-spacing:1.3px}.muted{color:#8c9aae;font-size:11px;line-height:1.9}.badge{display:inline-block;border-radius:4px;background:#edf3ff;color:#4673bc;padding:4px 7px;font-size:10px;margin:8px 0 20px}.detail-section{margin-top:22px;border-top:1px solid #eaf0f5;padding-top:17px}.detail-section h3{font-size:11px;color:#8c9caf;font-weight:500;margin:0 0 12px}.detail-row{display:flex;justify-content:space-between;gap:14px;margin:11px 0;font-size:11px}.detail-row span:first-child{color:#8b9bb0}.detail-row span:last-child{text-align:right;overflow-wrap:anywhere}.port{padding:10px;border:1px solid #e6edf5;border-radius:6px;margin:7px 0;font-size:11px}.port strong{color:#426388}.port small{float:right;color:#91a1b6}.inspector-actions{display:flex;gap:6px;margin-top:18px;flex-wrap:wrap}.inspector-actions button{font-size:11px}.raw{font-size:10px;background:#f7f9fc;padding:10px;white-space:pre-wrap;overflow-wrap:anywhere;color:#657d99;max-height:220px;overflow:auto}footer{height:28px;border-top:1px solid #dfe6ee;display:flex;justify-content:space-between;align-items:center;padding:0 18px;font-size:10px;color:#8b9ab0;background:white}#empty-state{position:absolute;top:38%;left:0;width:100%;text-align:center;font-size:20px;color:#466384}#empty-state[hidden]{display:none}#empty-state span{display:block;font-size:12px;margin:12px;color:#8a9bb1}#empty-state button{margin-top:10px}dialog{border:1px solid #dce5f0;border-radius:12px;width:570px;max-width:95vw;max-height:90vh;padding:24px;box-shadow:0 25px 100px #1c355a30}dialog::backdrop{background:#233b5a55;backdrop-filter:blur(3px)}.dialog-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.dialog-title h2{font-size:18px;margin:0}.dialog-title button{border:0;font-size:22px;padding:0 6px}.field{display:block;font-size:12px;margin-bottom:14px}.field>span{display:block;margin-bottom:7px;color:#71849c}.field small{display:block;margin-top:5px;color:#95a3b5;font-size:10px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}#editor-error{color:#c44848;font-size:12px}#toast{position:fixed;bottom:45px;left:50%;transform:translateX(-50%);background:#233e60;color:white;padding:12px 22px;border-radius:8px;box-shadow:0 4px 25px #233e6025;opacity:0;transition:opacity .2s;pointer-events:none;z-index:10}#toast.visible{opacity:1}.node{cursor:grab}.node text{user-select:none}.node .collapse{cursor:pointer}.edge{cursor:pointer}.edge .hit{stroke:transparent;stroke-width:18;fill:none}.node.dim,.edge.dim{opacity:.13}.edge.selected .wire{stroke-width:3.5}.hint-card{background:#f5f8fd;border:1px solid #e3ecf7;padding:13px;border-radius:8px;margin-top:20px;font-size:11px;color:#6c809a;line-height:1.9}@media(max-width:1150px){.canvas-toolbar{padding:10px}.canvas-toolbar span{display:none}.canvas-toolbar button{padding:6px}.project{padding-left:14px}header{gap:16px;padding:0 16px}}@media(max-width:850px){header .project{display:none}header nav{margin-left:auto}.canvas-toolbar{flex-wrap:wrap;height:82px}.brand small{display:none}.brand span{font-size:17px}nav button{font-size:11px;padding:7px}#open-folder{display:none}.canvas-caption{max-width:220px;line-height:1.6}.legend{top:8px}}
button:disabled{opacity:.4;cursor:default}.socket{cursor:crosshair;pointer-events:all}.socket:hover{r:9;fill:#306deb}.endpoint-handle,.route-handle{cursor:crosshair}.cable-label{cursor:move}.add-port{cursor:pointer}.add-port:hover rect{fill:#e8f0ff}.port-row text{cursor:pointer}.port-actions{display:flex;gap:5px;align-items:center;margin-top:9px}.port-actions span{flex:1;color:#92a1b4;font-size:10px}.port-actions button{padding:3px 6px;font-size:10px}.detail-section h3 button{float:right;padding:3px 7px;font-size:10px}.properties-cell{max-width:220px;overflow:hidden;text-overflow:ellipsis}summary{cursor:pointer;color:#71849c;margin-bottom:12px}#handles circle{pointer-events:all}header .project{min-width:130px}header nav{flex-wrap:wrap}#graph{user-select:none}@media(max-width:1150px){header{gap:10px}header nav{gap:4px}header nav button{padding:7px;font-size:11px}}

/* Focusable resize separators; interaction is handled by app.js. */
.splitter{position:relative;min-width:0;min-height:0;background:#e2e8f0;cursor:col-resize;touch-action:none;user-select:none;transition:background .15s}
.splitter::after{content:"";position:absolute;inset:calc(50% - 24px) 2px;background:#9aaec7;border-radius:2px;pointer-events:none}
.splitter[data-panel="bottom"]{cursor:row-resize}
.splitter[data-panel="bottom"]::after{inset:2px calc(50% - 24px)}
.splitter:hover,.splitter:focus-visible{background:#b7cef8}
.splitter:hover::after,.splitter:focus-visible::after{background:#306deb}
.splitter:focus-visible{outline:2px solid #306deb;outline-offset:-2px;z-index:1}

.workspace.hide-left{grid-template-columns:0 0 minmax(320px,1fr) 6px var(--right-width,290px)}.workspace.hide-right{grid-template-columns:var(--left-width,230px) 6px minmax(320px,1fr) 0 0}.workspace.hide-left.hide-right{grid-template-columns:0 0 minmax(320px,1fr) 0 0}.workspace.hide-left>.sidebar,.workspace.hide-left>#resize-left,.workspace.hide-right>.inspector,.workspace.hide-right>#resize-right{visibility:hidden;overflow:hidden;padding:0;border:0}.workspace.hide-bottom main{grid-template-rows:auto minmax(160px,1fr) 0 0}.workspace.hide-bottom .connection-panel,.workspace.hide-bottom #resize-bottom{visibility:hidden;overflow:hidden}.canvas-toolbar{flex-wrap:wrap;gap:8px}.canvas-toolbar>div:last-child{display:flex;flex-wrap:wrap;gap:4px}.canvas-toolbar button{padding:6px 8px}