/* marblepush: rules used only by the marblepush pages (loaded after base.css). */
.big-board-enabled .marblepush-board-wrap { width: 640px; max-width: none; margin: 0; }

/* Marble Brink board: a 61-cell hexagon rendered as plain circular buttons
   at hex-grid positions (see marblepush-app.js's cube-coordinate pixel
   math) - round holes/marbles read just as clearly on e-ink as true
   hexagon cells and are far simpler to get pixel-perfect on an old
   WebView. Height is JS-enforced from the measured width (see
   ensureMarblePushBoardAspect) rather than via `aspect-ratio`, which some
   E-Ink browsers silently ignore. */
.marblepush-board-wrap {
  max-width: 640px;
  margin: 0 auto;
}

.marblepush-board {
  position: relative;
  width: 100%;
  box-sizing: border-box;
}

.marblepush-cell {
  position: absolute;
  transform: translate(-50%, -50%);
  background: var(--square-light);
  border: 2px solid var(--border);
  border-radius: 50%;
  padding: 0;
  box-sizing: border-box;
  cursor: pointer;
  z-index: 2;
}

.marblepush-cell-movable {
  background: var(--square-dark);
  box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--text);
}

.marblepush-cell-selected {
  border-color: var(--accent);
  border-width: 3px;
}

/* A push destination: dashed border on top of the movable shading, so
   "this can capture" is conveyed structurally rather than by color
   alone. */
.marblepush-cell-push {
  border-style: dashed;
  border-width: 3px;
  border-color: var(--accent);
}

.marblepush-cell.last-move {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.marblepush-piece {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 78%;
  height: 78%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  box-sizing: border-box;
  pointer-events: none;
}

.marblepush-piece-black {
  background: #111;
  border: 2px solid #000;
}

.marblepush-piece-white {
  background: #fdfdfd;
  border: 2px solid var(--border);
}

/* Small disc icons for the color-choice picker and board placeholder,
   matching the board's own marble styling. */
.marblepush-icon-disc {
  display: inline-block;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  vertical-align: middle;
  box-sizing: border-box;
}

.marblepush-icon-disc-black {
  background: #111;
  border: 2px solid #000;
}

.marblepush-icon-disc-white {
  background: #fdfdfd;
  border: 2px solid var(--border);
}

/* The current-selection hint and its "Clear selection" button: plain
   stacked content, margin-based spacing rather than flexbox `gap`
   (unsupported on the Tolino's Chrome 61 WebView). */
.marblepush-selection-controls {
  margin-top: 0.6rem;
}

.marblepush-selection-controls button {
  margin: 0 0.5rem 0.5rem 0;
}

/* Worked-example diagram on the rules page. Flexbox `gap` fallback:
   margin-based spacing instead, since some E-Ink browsers (Tolino
   confirmed) don't support `gap` on a flex container and render items
   with zero space between them. */
.marblepush-example-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 0 1rem -1.5rem;
}

.marblepush-example-figure {
  margin: 0 0 1rem 1.5rem;
  max-width: 300px;
}

.marblepush-example-figure svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.marblepush-example-figure figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

.marblepush-cell-movable.last-move {
  box-shadow: inset 0 0 0 2px var(--accent), 0 0 0 3px #fff, 0 0 0 6px var(--text);
}