/* Chess: board, pieces, player bars, dialogs. Layout and the result card come from cb-arcade.css. */
.ch-page { --light: #f0dcb4; --dark: #b5835a; --last: rgba(255, 214, 0, .5); --sel: rgba(47, 107, 255, .42); --dot: rgba(30, 20, 10, .28); --p1: #2563eb; }
.ch-page [hidden] { display: none !important; }

.ch-tabs { display: flex; gap: 6px; margin: 0 0 10px; background: var(--cbx-soft); padding: 4px; border-radius: 14px; }
.ch-tabs button { flex: 1; border: 0; background: transparent; padding: 10px 8px; border-radius: 11px; font: 900 15px var(--cbx-body); color: var(--cbx-muted); cursor: pointer; }
.ch-tabs button[aria-selected="true"] { background: #fff; color: var(--cbx-ink); box-shadow: 0 2px 6px rgba(42, 29, 23, .12); }

.ch-card { padding: 12px; }
.ch-player { display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 4px 4px; font: 900 15px var(--cbx-body); }
.ch-player .dot { width: 14px; height: 14px; border-radius: 50%; box-shadow: inset 0 0 0 2px #2a1d17; flex: none; }
.ch-player .dot.w { background: #fff; } .ch-player .dot.b { background: #2a1d17; }
.ch-player .nm { flex: none; max-width: 40%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-player .caps { flex: 1; min-width: 0; font: 400 20px/1 'Noto Sans Symbols 2', 'Segoe UI Symbol', serif; color: #6b5a4e; letter-spacing: -3px; overflow: hidden; white-space: nowrap; }
.ch-player .adv { font: 900 13px var(--cbx-body); color: var(--cbx-muted); }
.ch-player.turn .nm::after { content: ' • to move'; color: var(--cbx-good); font-size: 13px; }

.ch-board { position: relative; display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(8, 1fr); width: min(100%, 520px); aspect-ratio: 1; margin: 0 auto; border-radius: 10px; overflow: hidden; box-shadow: 0 0 0 3px #6e4b30, 0 12px 30px rgba(42, 29, 23, .25); user-select: none; -webkit-user-select: none; touch-action: manipulation; }
.ch-sq { position: relative; border: 0; padding: 0; margin: 0; display: grid; place-items: center; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.ch-sq.l { background: var(--light); } .ch-sq.d { background: var(--dark); }
.ch-sq.last::before, .ch-sq.sel::before { content: ''; position: absolute; inset: 0; background: var(--last); }
.ch-sq.sel::before { background: var(--sel); }
.ch-sq.check { background: radial-gradient(circle, #ff4d4d 0%, #ff4d4d55 45%, transparent 75%), var(--light); }
.ch-sq.d.check { background: radial-gradient(circle, #ff4d4d 0%, #ff4d4d55 45%, transparent 75%), var(--dark); }
.ch-sq .pc { position: relative; z-index: 1; font: 400 clamp(30px, 9.4vw, 54px)/1 'Noto Sans Symbols 2', 'Segoe UI Symbol', serif; transition: transform .12s; pointer-events: none; }
.ch-sq .pc.w { color: #fffaf0; -webkit-text-stroke: 1.4px #2a1d17; text-shadow: 0 2px 2px rgba(0, 0, 0, .25); }
.ch-sq .pc.b { color: #1f1712; -webkit-text-stroke: .6px #000; text-shadow: 0 2px 2px rgba(0, 0, 0, .2); }
.ch-sq.sel .pc { transform: scale(1.1); }
.ch-sq.move::after { content: ''; position: absolute; z-index: 2; width: 30%; height: 30%; border-radius: 50%; background: var(--dot); }
.ch-sq.move.take::after { width: 86%; height: 86%; background: transparent; box-shadow: inset 0 0 0 5px var(--dot); }
.ch-sq .co { position: absolute; z-index: 1; font: 900 10px var(--cbx-body); opacity: .75; pointer-events: none; }
.ch-sq .co.f { right: 3px; bottom: 2px; } .ch-sq .co.r { left: 3px; top: 2px; }
.ch-sq.l .co { color: var(--dark); } .ch-sq.d .co { color: var(--light); }
.ch-board.locked .ch-sq { cursor: default; }
.ch-board.flash { animation: ch-flash .5s; }
@keyframes ch-flash { 50% { box-shadow: 0 0 0 3px #6e4b30, 0 0 0 9px rgba(255, 77, 77, .5); } }

.ch-status { margin: 10px 0 0; min-height: 24px; text-align: center; font: 900 16px var(--cbx-body); color: var(--cbx-ink); }
.ch-status.good { color: var(--cbx-good); } .ch-status.bad { color: var(--cbx-bad); }
.ch-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 10px; }
.ch-actions .cbx-btn { min-height: 46px; }
.ch-send { display: grid; gap: 8px; margin-top: 10px; }
.ch-level { display: flex; gap: 6px; justify-content: center; margin-top: 10px; }
.ch-level button { border: 0; padding: 8px 14px; border-radius: 999px; background: var(--cbx-soft); font: 900 14px var(--cbx-body); color: var(--cbx-muted); cursor: pointer; }
.ch-level button[aria-pressed="true"] { background: var(--cbx-accent); color: #fff; }
.ch-moves { margin: 12px 0 0; padding: 8px 10px; border-radius: 12px; background: var(--cbx-soft); font: 800 14px/1.7 var(--cbx-body); color: var(--cbx-ink-2); max-height: 84px; overflow-y: auto; word-spacing: 2px; }
.ch-moves:empty { display: none; }
.ch-moves b { color: var(--cbx-muted); font-weight: 900; }
.ch-banner, .cbx-card .ch-banner { margin: 0 0 10px; padding: 10px 12px; border-radius: 12px; background: #1d2740; color: #fff; font: 800 14px/1.4 var(--cbx-body); }
.ch-banner b { color: #ffd66b; }

.ch-dlg { border: 0; padding: 0; border-radius: 22px; width: min(420px, calc(100vw - 32px)); box-shadow: 0 30px 80px rgba(0, 0, 0, .35); }
.ch-dlg::backdrop { background: rgba(42, 29, 23, .45); }
.ch-dlg-card { padding: 20px; }
.ch-dlg h2 { margin: 0 0 6px; font: 900 22px var(--cbx-display); }
.ch-dlg p { margin: 0 0 12px; font: 800 15px/1.45 var(--cbx-body); color: var(--cbx-muted); }
.ch-field { display: grid; gap: 4px; margin: 0 0 10px; font: 900 13px var(--cbx-body); color: var(--cbx-ink-2); }
.ch-field input { font: 800 17px var(--cbx-body); padding: 11px 12px; border: 2px solid var(--cbx-line); border-radius: 12px; }
.ch-colors { display: flex; gap: 8px; margin: 4px 0 10px; }
.ch-colors label { flex: 1; display: grid; place-items: center; gap: 2px; padding: 10px 6px; border-radius: 12px; border: 2px solid var(--cbx-line); font: 900 13px var(--cbx-body); cursor: pointer; }
.ch-colors input { display: none; }
.ch-colors label:has(input:checked) { border-color: var(--cbx-accent); background: color-mix(in srgb, var(--cbx-accent) 10%, #fff); }
.ch-colors span.pc { font: 400 30px/1 'Noto Sans Symbols 2', 'Segoe UI Symbol', serif; }
.ch-dlg-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 10px; flex-wrap: wrap; }
.ch-promo { display: flex; gap: 8px; justify-content: center; }
.ch-promo button { width: 64px; height: 64px; border-radius: 14px; border: 2px solid var(--cbx-line); background: var(--light); font: 400 44px/1 'Noto Sans Symbols 2', 'Segoe UI Symbol', serif; cursor: pointer; }
.ch-mine { margin-top: 14px; border-top: 2px solid var(--cbx-line); padding-top: 10px; }
.ch-mine h3 { margin: 0 0 6px; font: 900 14px var(--cbx-body); }
.ch-mine ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.ch-mine a { display: block; padding: 9px 12px; border-radius: 10px; background: var(--cbx-soft); font: 800 14px var(--cbx-body); color: var(--cbx-ink); text-decoration: none; }
.ch-result { margin-top: 12px; }