/* OKF viewer - graph view styles.
 *
 * Loaded in addition to wiki.css by the single-file viewer template (where
 * both are inlined) and the full-page graph view template. The shared
 * wiki.css already covers .okf-graph, .okf-detail, the type chips etc;
 * this file holds only the graph-specific overrides.
 */

#okf-graph {
  background: var(--okf-bg-elev);
  /* Phase 4: the hover tooltip + zoom cluster are absolutely positioned
   * children of the canvas container. */
  position: relative;
}

/* Legend overlay showing type → colour */
.okf-graph-legend {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-border);
  border-radius: var(--okf-radius-sm);
  padding: 6px 10px;
  font-size: 0.75rem;
  max-height: 40vh;
  overflow-y: auto;
  box-shadow: var(--okf-shadow);
}
.okf-graph-legend__item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 1px 0;
}
.okf-graph-legend__swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  border: 1px solid var(--okf-border-strong);
}

/* A small hint overlay while Cytoscape.js is still loading from CDN. */
.okf-graph-loading {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-border);
  border-radius: var(--okf-radius-sm);
  padding: 6px 10px;
  font-size: 0.78rem;
  color: var(--okf-fg-muted);
}
.okf-graph-loading--error { color: #dc2626; border-color: #dc2626; }

/* ---- Keyboard-accessible node index (P1-4 / P2-2 iter-1, P2-4 iter-2) ---- *
 * A collapsible <details> overlay on the canvas. Each entry is a real
 * <button> (Tab + Enter/Space) so keyboard users get full graph access
 * (WCAG 2.1.1) without a pointer. Mirrors the concept-page local-graph
 * pill pattern. Sits top-right so it doesn't collide with the bottom-left
 * legend; max-height keeps it from overtaking the canvas.
 *
 * P2-4 (iter-2): the <details> defaults to COLLAPSED on all screen sizes
 * (the `open` attribute was removed from both graph templates). The
 * <summary> stays keyboard-reachable so users expand it with one click or
 * Enter/Space. A prior comment here claimed the index auto-collapsed on
 * small screens; CSS cannot remove the `open` attribute, so that claim was
 * never true. Collapsing by default is simpler and works on every
 * viewport. */
.okf-node-index {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 20;
  width: min(240px, 60vw);
  max-height: calc(100% - 20px);
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-border);
  border-radius: var(--okf-radius-sm);
  box-shadow: var(--okf-shadow);
  font-size: var(--okf-text-sm);
}
.okf-node-index > summary {
  cursor: pointer;
  font-weight: 600;
  padding: var(--okf-space-2) var(--okf-space-3);
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: var(--okf-space-2);
}
.okf-node-index > summary::-webkit-details-marker { display: none; }
.okf-node-index__count { color: var(--okf-fg-muted); font-weight: 400; font-size: var(--okf-text-xs); }
.okf-node-index__hint { margin: 0 var(--okf-space-3) var(--okf-space-1); }
.okf-node-index__list {
  max-height: min(50vh, 360px);
  overflow-y: auto;
  padding: 0 var(--okf-space-2) var(--okf-space-2);
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.okf-node-index__item {
  display: flex;
  align-items: center;
  gap: var(--okf-space-2);
  padding: var(--okf-space-1) var(--okf-space-2);
  border-radius: var(--okf-radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--okf-fg);
  font: inherit;
  font-size: var(--okf-text-sm);
  text-align: left;
  cursor: pointer;
  width: 100%;
}
.okf-node-index__item:hover {
  background: var(--okf-bg-inset);
  border-color: var(--okf-border);
}
.okf-node-index__swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: var(--okf-radius-pill);
  flex-shrink: 0;
  border: 1px solid var(--okf-border-strong);
}
.okf-node-index__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1 1 auto;
}

/* ---- iter2 CRI2-006 / §13.7: LOD "Show all" pill ----------------------- *
 * A single accessible <button> surfaced when the bundle exceeded the LOD
 * threshold and the hidden set is non-empty. Sits top-centre so it doesn't
 * collide with the bottom-left legend or the top-right node index. Caps at
 * viewport width so the count copy never overflows on mobile. */
.okf-graph-lod-pill {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  max-width: calc(100% - 20px);
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-border-strong);
  border-radius: var(--okf-radius-pill);
  padding: 6px 14px;
  font: inherit;
  font-size: var(--okf-text-sm);
  color: var(--okf-fg);
  cursor: pointer;
  box-shadow: var(--okf-shadow);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.okf-graph-lod-pill:hover { border-color: var(--okf-accent); color: var(--okf-accent); }
.okf-graph-lod-pill:focus-visible {
  outline: 2px solid var(--okf-accent);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  /* The pill itself has no animation; this block exists so a future motion
   * enhancement is gated from the start. */
  .okf-graph-lod-pill { transition: none !important; }
}

.okf-graph-legend__title {
  font-weight: 600;
  color: var(--okf-fg-muted);
  font-size: var(--okf-text-xs);
  padding-bottom: 2px;
}
.okf-graph-legend__title:not(:first-child) { margin-top: 6px; }
/* Edge-key swatch: a coloured line segment (with dash variants matching the
 * canvas relation dashes) so the relation legend maps 1:1 to edge styles. */
.okf-graph-legend__line {
  display: inline-block;
  width: 18px;
  height: 0;
  flex-shrink: 0;
  border-top: 2.5px solid var(--okf-border-strong);
}
.okf-graph-legend__line.okf-legend-okf-reld-1 { border-top-style: dashed; }
.okf-graph-legend__line.okf-legend-okf-reld-2 { border-top-style: dotted; }
.okf-graph-legend__line.okf-legend-okf-reld-3 { border-top-style: dashed; }

/* ---- Signal controls panel -------------------------------------------- *
 * A collapsible <details> rail built by graph.js (so it works identically
 * in the full-page graph AND the single-file viewer, with no inline JS).
 * Sits top-LEFT so it never collides with the top-right node index, the
 * top-centre LOD pill, or the bottom-left legend on desktop. Uses the same
 * elevated-surface tokens as the other overlays. */
/* User feedback: the controls are a compact BAR pinned at the
 * top of the right-hand detail pane — lens chips + status always visible,
 * everything expert-grade inside an Advanced disclosure. The node's
 * rendered page flows underneath and scrolls; the bar stays sticky. The
 * negative margins stretch it across the pane's padding so it reads as
 * the pane's header strip. */
/* The detail pane drops its top padding on graph pages so the sticky bar
 * pins flush against the pane's top edge (no see-through strip); the bar
 * supplies its own spacing below. */
.okf-layout > .okf-detail { padding-top: 0; }
.okf-signal--bar {
  position: sticky;
  top: 0;
  z-index: 21;
  margin: 0 calc(-1 * var(--okf-space-6)) var(--okf-space-4);
  padding: var(--okf-space-3) var(--okf-space-6) var(--okf-space-2);
  background: var(--okf-bg-elev);
  border-bottom: 1px solid var(--okf-border);
  box-shadow: var(--okf-shadow);
  font-size: var(--okf-text-sm);
}
.okf-signal__lenses {
  display: flex;
  align-items: center;
  gap: var(--okf-space-2);
  flex-wrap: wrap;
}
.okf-signal__lenses .okf-signal__seg { flex: 1 1 auto; }
.okf-signal__advanced { margin-top: var(--okf-space-2); }
.okf-signal__advanced > summary {
  cursor: pointer;
  font-weight: 600;
  font-size: var(--okf-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--okf-fg-muted);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: var(--okf-space-1);
}
.okf-signal__advanced > summary::-webkit-details-marker { display: none; }
.okf-signal__advanced > summary::after {
  content: "▸";
  color: var(--okf-fg-muted);
  transition: transform 0.15s ease;
}
.okf-signal__advanced[open] > summary::after { transform: rotate(90deg); }
.okf-signal__advanced > summary:hover { color: var(--okf-accent); }
.okf-signal__body {
  max-height: min(52vh, 440px);
  overflow-y: auto;
  padding: var(--okf-space-2) 0 var(--okf-space-2);
  display: flex;
  flex-direction: column;
  gap: var(--okf-space-3);
}
.okf-signal__hint { margin: 0 0 var(--okf-space-1); }
.okf-signal__group {
  border: 0;
  border-top: 1px solid var(--okf-border);
  margin: 0;
  padding: var(--okf-space-2) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--okf-space-2);
  min-width: 0;
}
.okf-signal__group > legend {
  padding: 0;
  font-weight: 600;
  font-size: var(--okf-text-xs);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--okf-fg-muted);
}
/* Preset segmented radio group: real radios (keyboard/arrow navigable),
 * visually presented as pills. */
/* Review feedback: balanced 3-col grid so the 6 presets form an even 2×3
 * block instead of an orphaned "Focus" row (reviewer #10). */
.okf-signal__seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--okf-space-1); }
.okf-signal__seg-item { position: relative; display: flex; }
.okf-signal__seg-item span { width: 100%; text-align: center; }
.okf-signal__seg-item input {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  margin: 0;
}
.okf-signal__seg-item span {
  display: inline-block;
  padding: 3px var(--okf-space-2);
  border: 1px solid var(--okf-border-strong);
  border-radius: var(--okf-radius-pill);
  font-size: var(--okf-text-xs);
  cursor: pointer;
  user-select: none;
}
.okf-signal__seg-item span:hover { border-color: var(--okf-accent); color: var(--okf-accent); }
.okf-signal__seg-item input:checked + span {
  background: var(--okf-accent);
  color: var(--okf-accent-on);
  border-color: var(--okf-accent);
}
.okf-signal__seg-item input:focus-visible + span {
  outline: 2px solid var(--okf-accent);
  outline-offset: 2px;
}
.okf-signal__row {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: var(--okf-text-sm);
}
.okf-signal__row--check {
  flex-direction: row;
  align-items: center;
  gap: var(--okf-space-2);
  cursor: pointer;
}
.okf-signal__row-label { color: var(--okf-fg); }
.okf-signal__row-value { font-weight: 600; color: var(--okf-accent); }
.okf-signal__row-hint { margin: 2px 0 0; }
.okf-signal__row select,
.okf-signal__row input[type="range"] { width: 100%; }
.okf-signal input[type="range"] { accent-color: var(--okf-accent); }
.okf-signal input[type="checkbox"],
.okf-signal input[type="radio"] { accent-color: var(--okf-accent); }
.okf-signal__row--check input { flex: 0 0 auto; }
.okf-signal__btn {
  align-self: flex-start;
  padding: 3px var(--okf-space-3);
  border: 1px solid var(--okf-border-strong);
  border-radius: var(--okf-radius-sm);
  background: var(--okf-bg-inset);
  color: var(--okf-fg);
  font: inherit;
  font-size: var(--okf-text-sm);
  cursor: pointer;
}
.okf-signal__btn:hover:not(:disabled) { border-color: var(--okf-accent); color: var(--okf-accent); }
.okf-signal__btn:disabled { opacity: 0.5; cursor: not-allowed; }
/* The active lens's question, always visible under the chips. */
.okf-signal__question {
  margin: var(--okf-space-1) 0 0;
  font-size: var(--okf-text-sm);
  font-weight: 600;
  color: var(--okf-fg);
}

/* Lens summary — the ranked answers panel (renders in
 * #detail-empty whenever no node is selected). */
.okf-lens-summary { text-align: left !important; margin-top: var(--okf-space-2) !important; }
.okf-lens-summary__title {
  margin: 0 0 4px;
  font-size: var(--okf-text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--okf-fg-muted);
}
.okf-lens-summary__verdict {
  margin: 0 0 var(--okf-space-3);
  font-size: var(--okf-text-base);
  color: var(--okf-fg);
  line-height: 1.5;
}
.okf-lens-summary__row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--okf-space-2);
  width: 100%;
  padding: 6px 10px;
  margin: 0 0 4px;
  background: var(--okf-bg-inset);
  border: 1px solid var(--okf-border);
  border-radius: var(--okf-radius-sm);
  cursor: pointer;
  font: inherit;
  font-size: var(--okf-text-sm);
  color: var(--okf-fg);
  text-align: left;
  overflow: hidden;
}
.okf-lens-summary__row:hover { border-color: var(--okf-accent); }
.okf-lens-summary__bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  background: var(--okf-accent);
  opacity: 0.16;
  pointer-events: none;
}
.okf-lens-summary__label {
  position: relative;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.okf-lens-summary__note {
  position: relative;
  color: var(--okf-fg-muted);
  font-size: var(--okf-text-xs);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.okf-lens-summary__hint { margin-top: var(--okf-space-3); font-size: var(--okf-text-xs); }

.okf-signal__status {
  margin: var(--okf-space-1) 0 0;
  font-size: var(--okf-text-xs);
  color: var(--okf-fg-muted);
  min-height: 1.2em;
}
/* Lens chips flow in one row on wide panes, wrapping on narrow ones. */
.okf-signal__lenses .okf-signal__seg {
  display: flex;
  flex-wrap: wrap;
  gap: var(--okf-space-1);
}
.okf-signal__lenses .okf-signal__seg-item { flex: 0 0 auto; }
.okf-signal__edgekey { margin: 0; font-size: var(--okf-text-xs); }
.okf-signal :focus-visible {
  outline: 2px solid var(--okf-accent);
  outline-offset: 2px;
}
/* Empty-graph (0 nodes): controls are disabled and visibly muted. */
.okf-signal--disabled .okf-signal__body { opacity: 0.55; }
.okf-signal--disabled .okf-signal__status { opacity: 1; }

/* ---- Detail panel: computed relationship explanation ------------------- */
.okf-detail__signals { margin: var(--okf-space-3) 0 0; }
.okf-detail__signals-head {
  margin: 0 0 var(--okf-space-1);
  font-size: var(--okf-text-sm);
  font-weight: 600;
}
.okf-detail__signals-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px var(--okf-space-3);
  margin: 0;
  font-size: var(--okf-text-sm);
}
.okf-detail__signals-list dt { color: var(--okf-fg-muted); }
.okf-detail__signals-list dd { margin: 0; }

/* ---- Phase 4: hover tooltip card --------------------------------------- */
.okf-graph-tip {
  position: absolute;
  z-index: 30;
  max-width: 280px;
  padding: 10px 12px;
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-border-strong);
  border-radius: var(--okf-radius);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
  pointer-events: none;
  font-size: var(--okf-text-sm);
  line-height: 1.4;
}
.okf-graph-tip__type {
  font-size: var(--okf-text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.okf-graph-tip__title { font-weight: 700; margin-top: 2px; }
.okf-graph-tip__desc { color: var(--okf-fg-muted); margin-top: 4px; }
.okf-graph-tip__meta {
  color: var(--okf-fg-muted);
  font-size: var(--okf-text-xs);
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
}

/* ---- Phase 4: zoom cluster (bottom-right) ------------------------------ */
.okf-graph-zoom {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 25;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.okf-graph-zoom button {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-border-strong);
  border-radius: var(--okf-radius-sm);
  color: var(--okf-fg);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--okf-shadow);
}
.okf-graph-zoom button:hover {
  border-color: var(--okf-accent);
  color: var(--okf-accent);
}

/* ---- Phase 5: live "graph updated" chip --------------------------------- */
.okf-graph-updated {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 28;
  display: flex;
  align-items: center;
  gap: var(--okf-space-2);
  padding: 6px 12px;
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-accent);
  border-radius: var(--okf-radius-pill);
  box-shadow: var(--okf-shadow);
  font-size: var(--okf-text-sm);
}
.okf-graph-updated button {
  background: none;
  border: none;
  color: var(--okf-accent);
  font-weight: 600;
  cursor: pointer;
  font-size: var(--okf-text-sm);
  padding: 0 2px;
}
.okf-graph-updated button:hover { text-decoration: underline; }

/* ---- Phase 5: first-visit micro-tour ------------------------------------ */
.okf-graph-tour {
  position: absolute;
  bottom: 20px;
  z-index: 40;
  width: 300px;
  padding: 14px 16px;
  background: var(--okf-bg-elev);
  border: 1px solid var(--okf-accent);
  border-radius: var(--okf-radius);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  font-size: var(--okf-text-sm);
  line-height: 1.5;
}
.okf-graph-tour[data-at="left"] { left: 20px; }
.okf-graph-tour[data-at="center"] { left: 50%; transform: translateX(-50%); }
.okf-graph-tour[data-at="right"] { right: 20px; }
.okf-graph-tour strong { display: block; margin-bottom: 4px; font-size: var(--okf-text-base); }
.okf-graph-tour p { margin: 0 0 10px; color: var(--okf-fg-muted); }
.okf-graph-tour__nav { display: flex; align-items: center; justify-content: space-between; }
.okf-graph-tour__dots { color: var(--okf-fg-muted); font-size: var(--okf-text-xs); }
.okf-graph-tour__nav button {
  background: var(--okf-accent);
  color: var(--okf-accent-on);
  border: none;
  border-radius: var(--okf-radius-sm);
  padding: 5px 14px;
  font-weight: 600;
  cursor: pointer;
}
.okf-graph-tour > button:first-child {
  position: absolute;
  top: 6px;
  right: 8px;
  background: none;
  border: none;
  color: var(--okf-fg-muted);
  cursor: pointer;
  font-size: var(--okf-text-sm);
  padding: 2px;
}

/* ---- Phase 4: legend rows as type filter chips -------------------------- */
.okf-graph-legend__item--chip { cursor: pointer; border-radius: var(--okf-radius-sm); padding: 1px 4px; }
.okf-graph-legend__item--chip:hover { background: var(--okf-bg-inset); }
.okf-graph-legend__item--chip:focus-visible { outline: 2px solid var(--okf-accent); outline-offset: 1px; }
.okf-graph-legend__item--off { opacity: 0.45; }
.okf-graph-legend__item--off span:last-child { text-decoration: line-through; }

@media (max-width: 900px) {
  .okf-graph-legend { display: none; }
  .okf-node-index { width: min(220px, 70vw); top: 56px; }
  /* Mobile-open feedback loop: stack the panes in normal
   * flow so the page scrolls, give the graph a tall fixed viewport (76vh), and
   * let the detail panel flow at natural height below it. The open drawer is
   * capped at 36vh, so the graph keeps a ≈39vh readable strip uncovered — well
   * above the ~35vh the reviewer requires — instead of a thumbnail. */
  .okf-layout { display: block; min-height: auto; }
  .okf-layout > .okf-graph { flex: 0 0 auto; height: 76vh; min-height: 360px; }
  .okf-layout > .okf-detail { flex: 0 0 auto; }
  /* The signal bar is in-flow at the top of the detail pane (which
   * stacks below the canvas on mobile) — no overlay geometry needed; just
   * relax the sticky inset to the pane's mobile padding. */
  .okf-signal--bar { top: 0; margin: 0 0 var(--okf-space-3); padding: var(--okf-space-2) var(--okf-space-3); }
  .okf-signal__body { max-height: 29vh; -webkit-overflow-scrolling: touch; }
  /* Stack the overlays so the collapsed Signal summary, node index, and LOD
   * pill never sit on top of each other. */
  .okf-graph-lod-pill { font-size: var(--okf-text-xs); padding: 4px 10px; top: 102px; }
  /* Topbar controls wrap instead of truncating ("Force n…") (reviewer #10).
   * Scoped to graph contexts since graph.css only loads on the graph page and
   * the single-file viewer. */
  .okf-topbar__controls { flex-wrap: wrap; row-gap: var(--okf-space-2); }
  .okf-topbar__controls #okf-search { flex: 1 1 100%; }
  .okf-topbar__controls select { flex: 1 1 auto; min-width: 8.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .okf-signal__advanced > summary::after { transition: none !important; }
}