/* Chess move calculator. Board colours are neutral greys in both themes (the pieces are the puzzle). */
.cm .split > *, .cm .panel { min-width: 0; }
:root { --cm-light: #ecece6; --cm-dark: #a9aaa2; --cm-frame: #2a2a2a; }
.cm-top { justify-content: space-between; align-items: center; gap: 8px; }
.cm-palette { margin-top: 12px; }
.cm-pal-row { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; margin-bottom: 4px; max-width: 420px; }
.cm-pal { aspect-ratio: 1; min-height: 40px; border: 1px solid var(--line); background: var(--canvas); border-radius: var(--r-md); padding: 3px; cursor: grab; touch-action: none; display: flex; align-items: center; justify-content: center; color: var(--ink); font: inherit; font-size: 12px; }
.cm-pal .cp { width: 100%; height: 100%; }
.cm-pal[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); background: var(--soft-2); }
.cm-pal-note { margin-top: 4px; }
.cm-stage { display: flex; gap: 8px; margin-top: 14px; align-items: stretch; max-width: 560px; }
.cm-evalbar { position: relative; width: 16px; flex: none; border-radius: 6px; overflow: hidden; background: #1b1b1b; border: 1px solid #6b6b6b; }
.cm-evalfill { position: absolute; left: 0; right: 0; bottom: 0; height: 50%; background: #f4f4f0; transition: height .35s ease; }
.cm-evalbar.flip .cm-evalfill { bottom: auto; top: 0; }
.cm-evalbar span { position: absolute; left: 0; right: 0; bottom: 3px; text-align: center; font-family: var(--mono); font-size: 9px; color: #000; writing-mode: vertical-rl; transform: rotate(180deg); }
.cm-evalbar.neg span { bottom: auto; top: 3px; color: #fff; }
.cm-boardwrap { position: relative; flex: 1; min-width: 0; }
.cm-board { display: grid; grid-template-columns: repeat(8, 1fr); border-radius: 6px; overflow: hidden; touch-action: none; user-select: none; -webkit-user-select: none; box-shadow: 0 0 0 1px var(--line); }
.cm-sq { position: relative; aspect-ratio: 1; border: 0; padding: 0; margin: 0; min-width: 0; background: var(--cm-light); cursor: pointer; display: block; -webkit-tap-highlight-color: transparent; }
.cm-sq.dk { background: var(--cm-dark); }
.cm-sq.last::before { content: ""; position: absolute; inset: 0; background: rgba(40, 40, 40, .22); }
.cm-sq.sel::before { content: ""; position: absolute; inset: 0; background: rgba(0, 0, 0, .34); }
.cm-sq.chk::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle, rgba(217, 45, 32, .75) 0, rgba(217, 45, 32, .35) 45%, transparent 72%); }
.cm-sq.tg::after { content: ""; position: absolute; left: 36%; top: 36%; width: 28%; height: 28%; border-radius: 50%; background: rgba(0, 0, 0, .3); }
.cm-sq.tg.cap::after { left: 4%; top: 4%; width: 92%; height: 92%; background: transparent; box-shadow: inset 0 0 0 4px rgba(0, 0, 0, .3); }
.cm-sq:focus-visible { outline: 3px solid var(--focus); outline-offset: -3px; z-index: 2; }
.cp { position: absolute; inset: 3%; background-size: contain; background-repeat: no-repeat; background-position: center; pointer-events: none; z-index: 1; }
.cm-sq.lift .cp { opacity: .25; }
.cm-co { position: absolute; font-family: var(--mono); font-size: 10px; line-height: 1; color: rgba(0, 0, 0, .8); pointer-events: none; z-index: 1; }
.cm-co.rk { left: 3px; top: 3px; } .cm-co.fl { right: 3px; bottom: 3px; }
.cm-ghost { position: fixed; z-index: 80; width: 56px; height: 56px; pointer-events: none; background-size: contain; background-repeat: no-repeat; transform: translate(-50%, -50%); filter: drop-shadow(0 4px 6px rgba(0,0,0,.3)); }
.cm-arrows { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 3; }
.cm-promo { position: absolute; inset: 0; z-index: 5; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; gap: 8px; border-radius: 6px; }
.cm-promo button { width: 22%; aspect-ratio: 1; border: 0; border-radius: 12px; background: var(--cm-light); cursor: pointer; position: relative; }
.cm-turn { margin-top: 14px; align-items: center; gap: 10px; }
.cm-castle { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 12px; }
.cm-ep { margin-top: 8px; max-width: 220px; }
.cm-fen { margin-top: 12px; } .cm-fen input { font-family: var(--mono); font-size: 14px; }
.cm-pgn { margin-top: 12px; }
.cm-pgn textarea { font: inherit; font-family: var(--mono); font-size: 14px; color: var(--ink); background: var(--canvas); border: 1px solid var(--line); border-radius: var(--r-md); padding: 10px 12px; width: 100%; resize: vertical; }
.cm-line { margin-top: 16px; }
.cm-line .moves { max-height: 180px; overflow-y: auto; font-size: 14px; }
.cm-line .moves li { min-width: 0; }
.cm-line .moves li.num { background: transparent; border-color: transparent; color: var(--muted); cursor: default; padding: 4px 2px; }
.cm-settings { gap: 10px; }
.cm-settings .field:first-child { flex: 1 1 160px; } .cm-settings .field:last-child { width: 90px; }
.cm-score { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.cm-pvs { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 8px; }
.cm-pv { background: var(--canvas); border: 1px solid var(--line); border-radius: var(--r-md); padding: 10px 12px; font-size: 14px; display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; align-items: start; }
.cm-pv.top { border-color: var(--ink); }
.cm-pv b { font-family: var(--mono); font-weight: 500; font-variant-numeric: tabular-nums; color: var(--ink); white-space: nowrap; }
.cm-pv span { font-family: var(--mono); color: var(--body); word-break: break-word; }
.cm-pv .cm-first { font-weight: 600; color: var(--ink); }
.cm-run { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 14px; color: var(--muted); margin-top: 12px; }
.cm-prog { width: 100%; height: 6px; border-radius: 3px; background: var(--soft-2); overflow: hidden; margin-top: 8px; }
.cm-prog i { display: block; height: 100%; width: 0; background: var(--ink); transition: width .2s; }
.cm-mate { margin-top: 16px; }
.cm-engine-note { font-size: 13px; }
@media (max-width: 420px) { .cm-co { font-size: 8px; } .cm-evalbar { width: 12px; } .cm-stage { gap: 6px; } }
@media (prefers-reduced-motion: reduce) { .cm-evalfill, .cm-prog i { transition: none; } }