/* ── Note Graph ──────────────────────────────────────────────────────────── */

#note-graph-container {
  width: 100%;
  height: calc(100% - 2em);
  position: relative;
  background: var(--bg);
  border-radius: 4px;
  /* Allow both pan and pinch-zoom for the vis.js canvas */
  touch-action: none;
}

/* vis.js injects a canvas; ensure it fills the container */
#note-graph-container canvas {
  display: block;
}

.graph-title-bar {
  font-size: 0.75em;
  color: var(--graph-title);
  padding: 4px 0 2px;
  text-align: center;
  user-select: none;
}

.graph-tooltip {
  display: none;
  position: absolute;
  background: var(--bg);
  border: none;
  border-radius: 6px;
  padding: 0;
  max-width: 320px;
  max-height: 300px;
  overflow: hidden;
  color: var(--text);
  font-size: 0.78em;
  line-height: 1.45;
  pointer-events: auto;
  z-index: 100;
  word-break: break-word;
  box-shadow: 0 4px 16px var(--shadow);
}

.graph-tooltip-title {
  font-weight: 600;
  font-size: 1em;
  padding: 7px 12px 6px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.graph-tooltip-body {
  padding: 6px 12px 8px;
  overflow-y: auto;
  max-height: 240px;
}

.graph-tooltip-body p {
  margin: 0.2em 0;
}

.graph-tooltip-body h1,
.graph-tooltip-body h2,
.graph-tooltip-body h3,
.graph-tooltip-body h4 {
  font-size: 0.95em;
  font-weight: 600;
  margin: 0.35em 0 0.15em;
}

.graph-tooltip-body ul,
.graph-tooltip-body ol {
  margin: 0.2em 0;
  padding-left: 1.3em;
}

.graph-tooltip-body li {
  margin: 0.1em 0;
}

.graph-tooltip-body code {
  background: var(--code-bg, rgba(128,128,128,0.15));
  border-radius: 3px;
  padding: 0 3px;
  font-size: 0.88em;
}

.graph-tooltip-body pre {
  background: var(--code-bg, rgba(128,128,128,0.15));
  border-radius: 4px;
  padding: 5px 8px;
  overflow-x: auto;
  font-size: 0.85em;
  margin: 0.25em 0;
}

.graph-tooltip-body pre code {
  background: none;
  padding: 0;
}

.graph-tooltip-body blockquote {
  margin: 0.25em 0 0.25em 0.5em;
  padding-left: 0.6em;
  border-left: 2px solid var(--accent);
  opacity: 0.85;
}

.graph-tooltip-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.3em 0;
}

.graph-tooltip-body a {
  color: var(--accent);
  text-decoration: none;
}

/* Override vis.js built-in tooltip to match theme instead of browser default */
.vis-tooltip {
  background-color: var(--bg) !important;
  border: none !important;
  color: var(--text) !important;
  border-radius: 6px !important;
  padding: 6px 10px !important;
  font-size: 0.78em !important;
  box-shadow: 0 2px 8px var(--shadow-light) !important;
}