/* ==========================================================================
   Building the Wall -- this board's own look  (styles.css)
   ==========================================================================
   Shared chrome comes from theme.css, shell.css and board/board.css. This file
   holds ONLY what is particular to this board -- 01-Architecture.md §9: Go
   stones and Mancala seeds are not the same object, so a board's own colours
   and piece artwork are never shared.

   Every colour and measurement is a token in the block below, so changing the
   look is one place rather than a hunt.

   THE PAGE MUST NEVER SCROLL, and nothing may ever scroll sideways. .stage is
   the only element allowed to grow or shrink. The max-height: 299px exception
   in Standards.md §5 applies unchanged.
   ========================================================================== */

/*
   EVERY LINE BELOW IS A TOKEN, AND THAT IS THE WHOLE CUSTOMISATION SURFACE.

   board.css already wires these to the real class hooks -- `.board__piece` gets
   `.is-side-0`, `.is-side-1` and so on from sprites.js, and an alternating cell
   gets `.is-alt`. A game that writes its own `.board__piece--0` rule instead is
   writing a selector that matches nothing: the page renders, the pieces are the
   shared gold and blue, and no tool anywhere reports a thing. That was the
   first version of this scaffold, and it is why the token list is the only
   thing here.
*/
.app {
    /* ---- the board surface --------------------------------------------- */
    --board-bg:       #1a1440;

    /* Brighter than any other board's lines, because here the "lines" are the
       thirty-six DOTS and they are the whole board. On every other board this
       token draws a grid a child looks past; on this one it draws the thing
       they are aiming at. */
    --board-line:     #9a8ae0;
    --board-cell:     #221a52;
    --board-cell-alt: #1d1748;

    /*
       The two players' colours. NOT their shapes: those come from sprites.js
       and are the signal that survives a colour-blind eye, a photocopy and
       Windows High Contrast. Change a colour here and rename the side in
       rules.js to match, or the board will say "Gold to play" in blue.

       Each colour has an EDGE, and it is not decoration: a piece is drawn with
       `paint-order: stroke`, so the darker edge is what keeps a pale piece
       legible against a pale square.
    */
    --piece-0:        #ffd45c;
    --piece-0-edge:   #7a5313;
    --piece-1:        #7fc8ff;
    --piece-1-edge:   #143d5c;
}

/*
 * THE BOARD'S SIZE IS NOT THIS FILE'S BUSINESS, AND THAT IS DELIBERATE.
 *
 * board.css already gives .board__frame `flex: 1 1 auto; min-height: 0` and the
 * SVG carries `preserveAspectRatio="xMidYMid meet"`, so the browser fits the
 * board into whatever space the column leaves -- at every viewport, for all
 * eight topologies, with no media query and no JavaScript.
 *
 * A per-game override here fights that. The first version of this scaffold
 * capped the frame at `calc(100vh - 16rem)`, which on a 360px-tall phone in
 * landscape is 104px: the board shrank into the top-left corner with two-thirds
 * of the screen empty. NOTHING FAILED. There was no overflow, no scrolling and
 * no console error -- every automated check passed and the game was unplayable.
 * Only the screenshot showed it (2026-09-03).
 *
 * If a board genuinely needs a different shape, change its viewBox in the
 * TOPOLOGY, which is the one place that knows the geometry.
 */

/*
 * THE ONE THING THIS BOARD HAS THAT NO OTHER BOARD DOES: ITS CELLS ARE NOT
 * DRAWN.
 *
 * The expanded grid (01-Architecture.md §2.6) is eleven by eleven, and 121
 * drawn squares is a sheet of graph paper. What a child should see is the
 * board they would draw themselves: thirty-six dots, the walls that have been
 * built, and the boxes that have been won.
 *
 * So the cells become invisible tap targets, exactly as they are on an
 * intersection board, and everything that is drawn is drawn on top of them:
 *
 *      the dots     geometry().dots(), from topo-square's `dots` option
 *      the walls    a piece, in the shape rules.shapes() asks for
 *      the boxes    a piece, in the side's own shape
 *      a legal move a dot in the middle of the gap, from board.css
 *
 * `transparent` and NOT `none`: a shape with no fill is not hit-testable, and
 * every one of these cells is a tap target 44px across.
 */
.board__cell {
    fill: transparent;
    stroke: none;
}