/* paper-figure-board.css — the 🧭 Figure board planning canvas
 * (V3.609, figure-board program R1). Loaded by paper-builder.html in
 * editor mode; all selectors are namespaced .pfb-*. */

/* The board toggles visibility via the `hidden` attribute (empty-state
 * instructions, ▶ Review, image slots, status pills). Any explicit
 * display on those elements (.pfb-empty-hint's flex, .btn's inline-flex)
 * outranks the UA's `[hidden] {display:none}`, which kept the canvas
 * instructions painted forever — so hidden wins unconditionally here. */
.pfb-wrap [hidden] { display: none !important; }

.pfb-wrap {
  display: flex;
  flex-direction: column;
  /* the tool-page root already provides page padding; the canvas wants
   * the remaining viewport height */
  height: calc(100vh - 190px);
  min-height: 420px;
}

/* ── toolbar ─────────────────────────────────────────────────────── */

.pfb-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 2px;
}
.pfb-bar-spacer, .pfb-foot-spacer, .pfb-head-spacer { flex: 1; }
.pfb-zoom-pct {
  font-size: 12px;
  color: var(--text-secondary, #667);
  min-width: 42px;
  text-align: center;
}
.pfb-status {
  font-size: 12px;
  color: var(--text-secondary, #667);
  max-width: 40ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pfb-status-err { color: #c0392b; }
.pfb-connect-armed {
  background: var(--accent, #2563eb);
  color: #fff;
}

/* ── canvas / world ──────────────────────────────────────────────── */

.pfb-canvas {
  position: relative;
  flex: 1;
  overflow: hidden;
  border: 1px solid var(--border-color, #d9dce3);
  border-radius: 10px;
  background:
    radial-gradient(circle, var(--border-color, #d9dce3) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--bg-secondary, #f6f7fa);
  touch-action: none;      /* pointer events own pan/pinch */
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.pfb-canvas:active { cursor: grabbing; }
.pfb-canvas.pfb-connecting { cursor: crosshair; }
.pfb-world {
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 0;
  transform-origin: 0 0;
}

/* V3.617 — zoom cluster floats over the canvas (top-right), one group */
.pfb-zoomctl {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px 4px;
  background: var(--bg-primary, #fff);
  border: 1px solid var(--border-color, #d9dce3);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(20, 30, 60, 0.12);
  z-index: 40;                 /* below the comments panel (50) */
  cursor: default;
}
.pfb-zoomctl button {
  border: none;
  background: none;
  font-size: 14px;
  line-height: 1;
  padding: 4px 7px;
  border-radius: 5px;
  cursor: pointer;
  color: var(--text-primary, #334);
}
.pfb-zoomctl button:hover { background: #eef1f6; }

.pfb-empty-hint {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
  color: var(--text-secondary, #667);
  padding: 24px;
}
.pfb-empty-hint h2 { margin: 0 0 8px; color: var(--text-primary, #223); }
.pfb-empty-hint p { max-width: 52ch; margin: 4px 0; }
.pfb-empty-sub { font-size: 12px; opacity: 0.8; }

/* ── arrows ──────────────────────────────────────────────────────── */

.pfb-arrows {
  position: absolute;
  top: 0; left: 0;
  overflow: visible;
  pointer-events: none;
}
.pfb-arrows #pfb-arrowhead polygon { fill: var(--text-secondary, #66708a); }
.pfb-arrow {
  fill: none;
  stroke: var(--text-secondary, #66708a);
  stroke-width: 2;
  pointer-events: none;
}
.pfb-arrow-hit {
  fill: none;
  stroke: transparent;
  stroke-width: 14;
  pointer-events: stroke;
  cursor: pointer;
}
.pfb-arrow-hit:hover + .pfb-arrow { stroke: #c0392b; }

/* ── cards ───────────────────────────────────────────────────────── */

.pfb-card {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 10px 12px;
  border-radius: 10px;
  background: var(--bg-primary, #fff);
  border: 1px solid var(--border-color, #d9dce3);
  border-top: 4px solid #94a3b8;
  box-shadow: 0 2px 8px rgba(20, 30, 60, 0.10);
  cursor: grab;
}
.pfb-card:active { cursor: grabbing; }
.pfb-card-figure     { border-top-color: #2563eb; }
.pfb-card-experiment { border-top-color: #d97706; }
.pfb-card-snip       { border-top-color: #7c3aed; }
.pfb-card-note       { border-top-color: #eab308; background: #fdf9e7; }
.pfb-connect-from { outline: 3px dashed var(--accent, #2563eb); outline-offset: 2px; }
.pfb-connecting .pfb-card { cursor: crosshair; }

.pfb-card-head {
  display: flex;
  align-items: center;
  gap: 6px;
}
.pfb-chip {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary, #667);
  white-space: nowrap;
}
.pfb-stat {
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  background: #eef1f6;
  color: #445;
}
.pfb-stat-planned   { background: #eef1f6; color: #445; }
.pfb-stat-running,
.pfb-stat-expected  { background: #fef3c7; color: #92400e; }
.pfb-stat-done,
.pfb-stat-collected { background: #dcfce7; color: #166534; }
.pfb-del {
  border: none;
  background: none;
  font-size: 16px;
  line-height: 1;
  color: var(--text-secondary, #99a);
  cursor: pointer;
  padding: 0 2px;
}
.pfb-del:hover { color: #c0392b; }

.pfb-title {
  width: 100%;
  border: none;
  background: transparent;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary, #223);
  padding: 2px 0;
  outline: none;
  cursor: text;
}
.pfb-title:focus { border-bottom: 1px solid var(--accent, #2563eb); }
/* V3.617 — rich-text body (contentEditable div; lists via the pop-up bar) */
.pfb-body {
  width: 100%;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text-primary, #334);
  outline: none;
  min-height: 34px;
  max-height: 320px;
  overflow-y: auto;
  cursor: text;
  white-space: pre-wrap;
  word-break: break-word;
}
.pfb-body:empty::before {
  content: attr(data-ph);
  color: var(--text-secondary, #9aa3b5);
  pointer-events: none;
}
.pfb-body ul, .pfb-body ol { margin: 4px 0; padding-left: 20px; }
.pfb-body li { margin: 1px 0; }

.pfb-richbar {
  display: none;
  gap: 4px;
  padding: 4px 0 0;
  border-top: 1px dashed var(--border-color, #e2e5ec);
  margin-top: 4px;
}
.pfb-bodywrap:focus-within .pfb-richbar { display: flex; }
.pfb-richbar button {
  border: 1px solid var(--border-color, #d9dce3);
  background: var(--bg-primary, #fff);
  border-radius: 5px;
  font-size: 11px;
  padding: 2px 7px;
  cursor: pointer;
  color: var(--text-primary, #334);
}
.pfb-richbar button:hover {
  border-color: var(--accent, #2563eb);
  color: var(--accent, #2563eb);
}

.pfb-img-wrap { position: relative; }
.pfb-img {
  display: block;
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border-color, #e2e5ec);
  background: #fff;
  pointer-events: none;   /* drag the card, not the image ghost */
}
.pfb-img-swap {
  position: absolute;
  top: 4px; right: 4px;
  border: none;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.85);
  cursor: pointer;
  padding: 2px 6px;
  opacity: 0;
  transition: opacity 0.15s;
}
.pfb-img-wrap:hover .pfb-img-swap { opacity: 1; }

.pfb-card-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 18px;
}
.pfb-img-btn {
  border: 1px dashed var(--border-color, #c8cdd8);
  background: none;
  border-radius: 6px;
  font-size: 11px;
  color: var(--text-secondary, #667);
  cursor: pointer;
  padding: 3px 8px;
}
.pfb-img-btn:hover { border-color: var(--accent, #2563eb); color: var(--accent, #2563eb); }
.pfb-src-link { font-size: 11px; }

.pfb-resize {
  position: absolute;
  right: 0; bottom: 0;
  width: 16px; height: 16px;
  cursor: ew-resize;
  background:
    linear-gradient(135deg, transparent 55%, var(--border-color, #c8cdd8) 55%, var(--border-color, #c8cdd8) 65%,
      transparent 65%, transparent 75%, var(--border-color, #c8cdd8) 75%, var(--border-color, #c8cdd8) 85%, transparent 85%);
  border-bottom-right-radius: 10px;
}

/* ── per-card comment panel (V3.611) ─────────────────────────────── */

.pfb-comment-btn {
  border: none;
  background: none;
  font-size: 12px;
  color: var(--text-secondary, #667);
  cursor: pointer;
  padding: 1px 4px;
  border-radius: 6px;
}
.pfb-comment-btn:hover { background: #eef1f6; }
.pfb-comment-btn.pfb-has-comments {
  color: var(--accent, #2563eb);
  font-weight: 600;
}

.pfb-comments-panel {
  position: absolute;
  top: 10px; right: 10px; bottom: 10px;
  width: min(340px, 85%);
  display: flex;
  flex-direction: column;
  background: var(--bg-primary, #fff);
  border: 1px solid var(--border-color, #d9dce3);
  border-radius: 10px;
  box-shadow: 0 6px 24px rgba(20, 30, 60, 0.18);
  z-index: 50;
  cursor: default;
}
.pfb-comments-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color, #e2e5ec);
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary, #223);
}
.pfb-comments-body {
  flex: 1;
  overflow-y: auto;
  padding: 4px 10px 10px;
}

/* library capture browser rows (modal shell styles come from
 * paper-editor.css's pe-eqviz-* / pe-doc-picker-*) */
.pfb-browse-img {
  max-width: 220px;
  max-height: 160px;
  border-radius: 6px;
  border: 1px solid var(--border-color, #e2e5ec);
  background: #fff;
}

/* ── change review (V3.612) ──────────────────────────────────────── */

.pfb-card.pfb-changed {
  outline: 3px solid #f59e0b;
  outline-offset: 2px;
}
.pfb-card.pfb-changed .pfb-chip::after {
  content: ' · changed';
  color: #b45309;
  font-weight: 700;
}
.pfb-review { border-color: #f59e0b; color: #b45309; }
@keyframes pfb-flash-anim {
  0%   { box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.55); }
  100% { box-shadow: 0 2px 8px rgba(20, 30, 60, 0.10); }
}
.pfb-card.pfb-flash { animation: pfb-flash-anim 1.2s ease-out; }

.pfb-placeholder {
  padding: 40px;
  text-align: center;
  color: var(--text-secondary, #667);
}

/* ── mobile ──────────────────────────────────────────────────────── */

@media (max-width: 700px) {
  .pfb-wrap { height: calc(100vh - 230px); }
  .pfb-toolbar { gap: 6px; }
  .pfb-toolbar .btn { padding: 4px 8px; font-size: 12px; }
  .pfb-status { display: none; }
}