.mindmap-canvas { position: absolute; inset: 0; overflow: hidden; cursor: grab; background-color: var(--canvas-bg); background-image: radial-gradient(var(--border-strong) 1px, transparent 1px); background-size: 24px 24px; user-select: none; }
.mindmap-canvas.panning { cursor: grabbing; }
.mindmap-world { position: absolute; left: 50%; top: 50%; width: 1px; height: 1px; transform-origin: 0 0; will-change: transform; }
.edge-layer, .node-layer { position: absolute; left: 0; top: 0; overflow: visible; }
.edge-path { fill: none; stroke: #5c5870; stroke-width: 2; vector-effect: non-scaling-stroke; pointer-events: stroke; cursor: pointer; transition: stroke .15s ease; }
.edge-path:hover { stroke: var(--danger); }
.edge-path.parent { stroke: color-mix(in srgb, var(--primary) 50%, #6f6b7d); }
.map-node { position: absolute; display: flex; align-items: center; justify-content: center; min-width: 130px; min-height: 48px; padding: 11px 18px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface-2); color: var(--text); box-shadow: 0 6px 16px rgba(0,0,0,.18); cursor: pointer; transform: translate(-50%, -50%); transition: border-color .14s ease, box-shadow .14s ease; }
.map-node:hover { border-color: rgba(139,92,246,.5); }
.map-node.selected { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft), 0 10px 28px rgba(0,0,0,.25); }
.map-node.root { color: white; background: linear-gradient(145deg, #8b5cf6, #6840cf); border-color: transparent; box-shadow: 0 8px 28px rgba(124,58,237,.3); }
.node-content { max-width: 260px; outline: none; line-height: 1.35; text-align: center; word-break: break-word; user-select: text; }
.node-content[contenteditable="true"] { cursor: text; min-width: 70px; border-bottom: 1px solid rgba(255,255,255,.5); }
.node-port { position: absolute; width: 10px; height: 10px; right: -6px; top: calc(50% - 5px); border: 2px solid var(--surface); border-radius: 50%; background: var(--primary); opacity: 0; transition: opacity .15s; }
.map-node:hover .node-port, .map-node.selected .node-port { opacity: 1; }
.mindmap-canvas.overview[data-mode="mindmap"] .map-node { width: 7px !important; min-width: 7px !important; height: 7px !important; min-height: 7px !important; padding: 0; border: 0; border-radius: 50%; background: var(--group-color) !important; box-shadow: 0 0 9px color-mix(in srgb, var(--group-color) 58%, transparent); transform: translate(-50%, -50%) scale(var(--overview-inverse)); }
.mindmap-canvas.overview[data-mode="mindmap"] .map-node .node-content, .mindmap-canvas.overview[data-mode="mindmap"] .map-node .node-port { display: none; }
.mindmap-canvas.overview[data-mode="mindmap"] .map-node.hub, .mindmap-canvas.overview[data-mode="mindmap"] .map-node.selected { width: auto !important; min-width: 106px !important; height: auto !important; min-height: 30px !important; padding: 6px 9px; border-radius: 8px; color: #f6f3ff; background: color-mix(in srgb, var(--group-color) 68%, #17141f) !important; box-shadow: 0 0 0 1px color-mix(in srgb, var(--group-color) 55%, transparent), 0 8px 20px rgba(0,0,0,.3); }
.mindmap-canvas.overview[data-mode="mindmap"] .map-node.hub .node-content, .mindmap-canvas.overview[data-mode="mindmap"] .map-node.selected .node-content { display: block; max-width: 150px; color: inherit; font-size: 11px; line-height: 1.25; }
.mindmap-canvas[data-mode="graph"] { background-image: radial-gradient(rgba(139,92,246,.16) 1px, transparent 1px); background-size: 28px 28px; }
.mindmap-canvas[data-mode="graph"] .map-node { width: var(--graph-size) !important; min-width: var(--graph-size) !important; height: var(--graph-size) !important; min-height: var(--graph-size) !important; padding: 0; border: 0; border-radius: 50%; background: var(--group-color); box-shadow: 0 0 0 1px rgba(255,255,255,.14), 0 0 12px color-mix(in srgb, var(--group-color) 36%, transparent); transition: opacity .18s ease, box-shadow .18s ease; }
.mindmap-canvas[data-mode="graph"] .map-node:hover, .mindmap-canvas[data-mode="graph"] .map-node.selected { z-index: 8; box-shadow: 0 0 0 3px color-mix(in srgb, var(--group-color) 30%, transparent), 0 0 22px var(--group-color); }
.mindmap-canvas[data-mode="graph"] .map-node.root { background: #d8ccff; box-shadow: 0 0 30px rgba(167,139,250,.65); }
.mindmap-canvas[data-mode="graph"] .node-content { position: absolute; left: 50%; top: calc(100% + 6px); width: 190px; max-width: none; padding: 3px 6px; border-radius: 4px; color: #e8e5ef; background: rgba(13,13,18,.84); font-size: 16px; line-height: 1.25; opacity: 0; transform: translateX(-50%) scale(var(--graph-label-inverse, 1)); transform-origin: 50% 0; pointer-events: none; text-shadow: 0 1px 2px #000; transition: opacity .14s ease; }
.mindmap-canvas[data-mode="graph"] .map-node.hub .node-content, .mindmap-canvas[data-mode="graph"] .map-node:hover .node-content, .mindmap-canvas[data-mode="graph"] .map-node.selected .node-content { opacity: 1; }
.mindmap-canvas[data-mode="graph"].graph-label-secondary .map-node[data-depth="1"] .node-content, .mindmap-canvas[data-mode="graph"].graph-label-secondary .map-node[data-depth="2"] .node-content { opacity: 1; }
.mindmap-canvas[data-mode="graph"].graph-label-all .map-node .node-content { opacity: 1; }
.mindmap-canvas[data-mode="graph"] .map-node.labels-hidden .node-content { opacity: 0 !important; }
.mindmap-canvas[data-mode="graph"] .map-node.filtered-out { opacity: .08; }
.mindmap-canvas[data-mode="graph"] .node-port { display: none; }
.mindmap-canvas[data-mode="graph"] .edge-path { stroke: rgba(166,164,180,var(--edge-opacity)); stroke-width: 1; }
.mindmap-canvas[data-mode="graph"] .edge-path.parent { stroke: rgba(130,151,175,var(--edge-opacity)); }
.mindmap-canvas[data-mode="graph"] .edge-path.filtered-out { opacity: .05; }
.canvas-float { position: absolute; z-index: 8; display: flex; gap: 4px; padding: 5px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow-soft); }
.canvas-float.bottom-left { left: 16px; bottom: 16px; }
.canvas-help { position: absolute; right: 16px; bottom: 16px; padding: 8px 11px; border: 1px solid var(--border); border-radius: 8px; color: var(--muted); background: color-mix(in srgb, var(--surface) 88%, transparent); font-size: 11px; pointer-events: none; }
.editor-title { max-width: 250px; min-width: 100px; padding: 7px 9px; border: 1px solid transparent; border-radius: 7px; background: transparent; color: var(--text); font-weight: 700; outline: none; }
.editor-title:focus { border-color: var(--border-strong); background: var(--surface-2); }
.save-state { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 11px; }
.save-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); }
.save-state.saving .save-dot { background: var(--warning); animation: pulse 1s ease infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.property-empty { display: grid; place-items: center; min-height: 180px; padding: 20px; text-align: center; color: var(--muted); font-size: 13px; }
.graph-3d-wrap { position: absolute; inset: 0; overflow: hidden; background: var(--canvas-bg); }
.graph-3d-wrap[hidden] { display: none; }
.graph-3d-canvas { display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; }
.graph-3d-canvas.dragging { cursor: grabbing; }
.graph-3d-canvas[data-drag-mode="rotate"] { cursor: alias; }
.graph-3d-badge { position: absolute; left: 16px; top: 16px; display: flex; align-items: center; gap: 8px; padding: 8px 11px; border: 1px solid rgba(255,255,255,.1); border-radius: 8px; color: #b7b4c2; background: rgba(18,18,25,.76); font-size: 11px; pointer-events: none; backdrop-filter: blur(10px); }
.graph-3d-badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #a78bfa; box-shadow: 0 0 10px #a78bfa; }
.advanced-graph-wrap { position: absolute; inset: 0; overflow: hidden; background: var(--canvas-bg); }
.advanced-graph-wrap[hidden] { display: none; }
.advanced-graph-canvas { display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; }
.advanced-graph-canvas.dragging { cursor: grabbing; }
.advanced-graph-canvas[data-drag-mode="rotate"] { cursor: alias; }
.advanced-graph-badge { position: absolute; left: 16px; top: 16px; display: flex; align-items: center; gap: 8px; padding: 8px 11px; border: 1px solid rgba(255,255,255,.1); border-radius: 8px; color: #b7b4c2; background: rgba(18,18,25,.76); font-size: 11px; pointer-events: none; backdrop-filter: blur(10px); }
.advanced-graph-badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #58a6d8; box-shadow: 0 0 10px #58a6d8; }
.advanced-graph-wrap[data-mode="neural"] .advanced-graph-badge::before { background: #ef6f6c; box-shadow: 0 0 10px #ef6f6c; }
.graph-relation-button { position: absolute; z-index: 6; right: 16px; top: 16px; min-width: 122px; border-color: rgba(255,255,255,.12); color: #ddd9e7; background: rgba(18,18,25,.82); backdrop-filter: blur(10px); }
.graph-relation-button:hover { background: rgba(34,35,47,.94); }
.graph-relation-button.primary { border-color: rgba(167,139,250,.55); background: #7c3aed; box-shadow: 0 0 24px rgba(124,58,237,.28); }
.relation-title-panel { position: absolute; z-index: 6; right: 16px; top: 64px; width: min(300px, calc(100% - 32px)); max-height: min(58vh, 520px); overflow: hidden; padding: 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 11px; color: #e8e5ef; background: rgba(12,14,20,.9); box-shadow: 0 18px 46px rgba(0,0,0,.32); backdrop-filter: blur(14px); }
.relation-title-panel[hidden] { display: none; }
.relation-title-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,.1); }
.relation-title-head strong { display: block; max-width: 220px; margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.relation-title-head > span { display: grid; place-items: center; min-width: 28px; height: 24px; padding: 0 7px; border-radius: 999px; color: #c4b5fd; background: rgba(124,58,237,.2); font-size: 11px; }
.relation-title-list { display: grid; gap: 5px; max-height: calc(min(58vh, 520px) - 68px); overflow: auto; padding-top: 10px; }
.relation-title-list button { display: grid; grid-template-columns: 8px minmax(0,1fr); align-items: center; gap: 8px; min-height: 30px; padding: 5px 8px; border: 1px solid transparent; border-radius: 7px; color: #d7d3df; background: rgba(255,255,255,.035); text-align: left; cursor: pointer; }
.relation-title-list button:hover { border-color: rgba(167,139,250,.35); background: rgba(124,58,237,.13); }
.relation-title-list button span { width: 6px; height: 6px; border-radius: 50%; background: #a78bfa; box-shadow: 0 0 7px #a78bfa; }