:root{--bg: #14161a;--panel: #1d2026;--panel-border: #2b2f36;--text: #e6e8eb;--text-dim: #9aa0a8;--accent: #5b8def;--accent-soft: #5b8def33;--danger: #e5484d;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);height:100vh;overflow:hidden}#app{display:grid;grid-template-rows:48px 1fr 44px;grid-template-columns:260px 1fr 320px;grid-template-areas:"header header header" "tree canvas inspector" "footer footer footer";height:100vh}header{grid-area:header;display:flex;align-items:center;gap:12px;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--panel-border)}header h1{font-size:15px;font-weight:700;margin:0;letter-spacing:.4px}header h1 span{color:var(--accent)}header .doc-name{color:var(--text-dim);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}header .spacer{flex:1}button{background:#262a31;color:var(--text);border:1px solid var(--panel-border);border-radius:6px;padding:6px 12px;font-size:13px;cursor:pointer}button:hover{border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button:disabled{opacity:.4;cursor:default}#tree-panel{grid-area:tree;overflow:auto;background:var(--panel);border-right:1px solid var(--panel-border);padding:8px;font-size:13px}#tree-panel ul{list-style:none;margin:0;padding-left:14px}#tree-panel>ul{padding-left:0}#tree-panel li>.row{display:flex;gap:6px;align-items:center;padding:3px 6px;border-radius:4px;cursor:pointer;white-space:nowrap}#tree-panel li>.row:hover{background:#262a31}#tree-panel li>.row.selected{background:var(--accent-soft);color:var(--accent)}#tree-panel .type{color:var(--text-dim);font-size:11px}#canvas-area{grid-area:canvas;display:flex;flex-direction:column;min-width:0;min-height:0}#canvas-topbar{display:flex;align-items:center;gap:12px;padding:8px 12px 4px}#page-tabs{display:flex;gap:4px}#page-tabs button.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}#canvas-host{flex:1;min-height:0}#canvas-host .imigis-stage{box-shadow:0 4px 24px #0009;background:repeating-conic-gradient(#23262c,#23262c 25%,#1b1e23 0%,#1b1e23 50%) 0 0 / 16px 16px}#empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center}#inspector details{margin-top:10px}#inspector summary{cursor:pointer;opacity:.7;font-size:12px}#inspector{grid-area:inspector;display:flex;flex-direction:column;background:var(--panel);border-left:1px solid var(--panel-border);min-height:0}#inspector .tabs{display:flex;border-bottom:1px solid var(--panel-border)}#inspector .tabs button{flex:1;border:none;border-radius:0;background:none;padding:10px 0;color:var(--text-dim);font-size:12px}#inspector .tabs button.active{color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}#inspector .content{flex:1;overflow:auto;padding:10px;font-size:12px}#inspector pre{margin:0;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:11px;line-height:1.5}#inspector .warning{padding:6px 8px;margin-bottom:6px;border-left:3px solid #f5a524;background:#f5a52411;border-radius:0 4px 4px 0}#inspector .warning .code{color:#f5a524;font-weight:600;font-size:11px}footer{grid-area:footer;display:flex;align-items:center;gap:8px;padding:0 16px;background:var(--panel);border-top:1px solid var(--panel-border);font-size:12px;color:var(--text-dim)}footer .spacer{flex:1}#drop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#14161acc;border:3px dashed var(--accent);border-radius:12px;display:none;align-items:center;justify-content:center;font-size:20px;color:var(--accent);pointer-events:none;z-index:10}#drop-overlay.active{display:flex}#empty-state{text-align:center;color:var(--text-dim)}#empty-state h2{color:var(--text);font-weight:600}