/* D3 Graph Styles */

.graph-node {
    cursor: pointer;
    transition: opacity 0.2s;
}

.graph-edge {
    stroke: #555;
    pointer-events: none;
}

/* Tooltip */
.graph-tooltip {
    position: absolute;
    background: var(--bg-card, #161b22);
    border: 1px solid var(--border-color, #30363d);
    border-radius: 8px;
    padding: 0.6rem 0.8rem;
    font-size: 0.8rem;
    color: var(--text-primary, #e6edf3);
    pointer-events: none;
    z-index: 200;
    line-height: 1.5;
    max-width: 250px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Node labels */
.node-label {
    font-size: 10px;
    fill: var(--text-secondary, #8b949e);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.node-group:hover .node-label {
    opacity: 1;
}

/* ─── Isolation Chamber Highlights ──────────────────────────── */

.node-group.isolated .graph-node {
    stroke: var(--rep-red, #b2182b);
    stroke-width: 3;
    animation: pulse-red 2s infinite;
}

.node-group.connected .graph-node {
    opacity: 0.3;
}

@keyframes pulse-red {
    0%, 100% { stroke-opacity: 1; }
    50% { stroke-opacity: 0.4; }
}

/* ─── Bridge Builder Highlights ─────────────────────────────── */

.node-group.bridge .graph-node {
    stroke: #ffd700;
    stroke-width: 3;
    filter: drop-shadow(0 0 6px rgba(255, 215, 0, 0.5));
}

.node-group.non-bridge .graph-node {
    opacity: 0.4;
}

/* Bridge rank badge */
.bridge-rank {
    font-size: 9px;
    font-weight: 700;
    fill: #ffd700;
    text-anchor: middle;
    pointer-events: none;
}

/* ─── Scoundrel Highlights ─────────────────────────────────── */

.node-group.scoundrel .graph-node {
    stroke: #ff6b35;
    stroke-width: 3;
    animation: pulse-orange 1.5s infinite;
    filter: drop-shadow(0 0 8px rgba(255, 107, 53, 0.6));
}

.node-group.scoundrel .node-label {
    opacity: 1;
    fill: #ff6b35;
    font-weight: 700;
}

.node-group.loyal .graph-node {
    opacity: 0.25;
}

@keyframes pulse-orange {
    0%, 100% { stroke-opacity: 1; }
    50% { stroke-opacity: 0.5; }
}