/* Knowledge graph (port of demo knowledge-graph.css, scoped to #root-page) */

#root-page #knowledge-graph-page {
    position: relative;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    height: 100vh;
    margin-top: 4em;
    margin-bottom: 0;
    background: transparent;
    border-radius: 0;
    user-select: none;
    -webkit-user-select: none;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 12%, black 88%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, black 12%, black 88%, transparent 100%);
}

#kg-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

#kg-canvas:active { cursor: grabbing; }

#kg-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-family);
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    z-index: 5;
}

#kg-loading.hidden { display: none; }

.kg-tooltip {
    position: absolute;
    pointer-events: none;
    z-index: 20;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 10px 14px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    max-width: 280px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.12);
    display: none;
    line-height: 1.5;
}

.kg-tooltip .kg-tooltip-name { font-weight: bold; font-size: var(--font-size-md); margin-bottom: 4px; }
.kg-tooltip .kg-tooltip-type { font-size: var(--font-size-sm); color: var(--color-text-muted); text-transform: capitalize; }
.kg-tooltip .kg-tooltip-hint { margin-top: 6px; }
.kg-tooltip .kg-tooltip-chars { margin-top: 6px; color: var(--color-text-muted); }
.kg-tooltip .kg-tooltip-chars span { display: inline-block; margin-right: 6px; }

.kg-node.kg-node-selected circle {
    stroke: var(--color-primary);
    stroke-width: 3;
}

.kg-node-label.kg-node-selected,
.kg-node.kg-node-selected .kg-node-label {
    font-weight: 700;
}

@media only screen and (max-width: 800px) {
    #root-page #knowledge-graph-page {
        height: 70vh;
    }
}