@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap";:root{--bg-color:#f2f3f5;--node-bg:#fff;--node-border:#d0d7de;--node-shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--node-selected:#e11d48;--line-color:#cbd5e1;--text-main:#0f172a;--accent:#2563eb;--sidebar-bg:#fff}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;overflow:hidden}#root{height:100%}.app-container{width:100vw;height:100vh;display:flex}.sidebar{background:var(--sidebar-bg);z-index:50;border-right:1px solid #e2e8f0;flex-direction:column;flex-shrink:0;width:420px;min-width:420px;display:flex;box-shadow:10px 0 15px -3px #0000000d}.editor-header{color:#1e293b;border-bottom:1px solid #f1f5f9;align-items:center;gap:.75rem;padding:1.25rem;font-weight:600;display:flex}.editor-footer{color:#94a3b8;border-top:1px solid #f1f5f9;padding:.75rem 1.25rem;font-size:11px}.library-list{background:#fff;border-bottom:1px solid #f1f5f9;max-height:200px;overflow-y:auto}.library-item{cursor:pointer;justify-content:space-between;align-items:center;padding:.75rem 1.25rem;font-size:13px;transition:background .2s;display:flex}.library-item:hover{background:#f8fafc}.library-item.active{color:var(--accent);background:#eff6ff;font-weight:500}.library-empty{text-align:center;color:#94a3b8;padding:1rem;font-size:12px;font-style:italic}.del-btn{color:#cbd5e1;cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:18px}.del-btn:hover{color:#ef4444}.text-btn{color:var(--accent);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:11px;font-weight:600}.text-btn:hover{background:#eff6ff}.editor-wrapper{background:#f8fafc;flex:1;padding:1rem;position:relative;overflow:hidden}.editor-area{color:#334155;resize:none;background:#fff;border:1px solid #e2e8f0;border-radius:8px;outline:none;width:100%;height:100%;padding:1rem;font-family:JetBrains Mono,Fira Code,monospace;font-size:13px;line-height:1.6;transition:border-color .2s}.editor-area:focus{border-color:var(--accent)}.canvas-container{background:var(--bg-color);background-image:radial-gradient(#cbd5e1 1px,#0000 1px);background-size:32px 32px;flex:1;position:relative}.sitemap-node{background:var(--node-bg);border:1.5px solid var(--node-border);box-shadow:var(--node-shadow);cursor:pointer;color:#334155;border-radius:8px;font-size:14px;font-weight:500;transition:transform .15s,border-color .2s,box-shadow .2s}.sitemap-node:hover{border-color:#94a3b8;transform:translateY(-2px);box-shadow:0 10px 15px -3px #0000001a}.sitemap-node.selected{border-color:var(--node-selected);border-width:2px}.connector-line{fill:none;stroke:var(--line-color);stroke-width:4px;stroke-linecap:round;stroke-linejoin:round}.toolbar{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:9999;background:#ffffffeb;border:1px solid #e2e8f0;border-radius:12px;gap:.5rem;padding:.5rem;display:flex;position:fixed;top:1.25rem;right:1.25rem;box-shadow:0 10px 15px -3px #0000001f}.btn{color:#64748b;cursor:pointer;background:#fff;border:1px solid #e2e8f0;border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex}.btn:hover{color:#1e293b;background:#f1f5f9;border-color:#cbd5e1}.btn-primary{background:var(--accent);color:#fff;border:none;width:auto;padding:0 1rem;font-weight:500}.btn-primary:hover{color:#fff;background:#1d4ed8}.node-controls{z-index:10;gap:6px;display:flex;position:absolute;top:-12px;right:-12px}.node-action-btn{cursor:pointer;color:#fff;border:none;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;padding-bottom:2px;font-size:16px;font-weight:700;line-height:1;transition:transform .1s,background-color .2s;display:flex;box-shadow:0 2px 4px #00000026}.node-action-btn:hover{transform:scale(1.1)}.btn-delete{background:#ef4444}.btn-delete:hover{background:#dc2626}.btn-add{background:#22c55e}.btn-add:hover{background:#16a34a}