.board-game{max-width:560px;margin:1rem auto}.board-game__status{min-height:1.6em;font-weight:650}.board-game__grid{display:grid;gap:4px;padding:8px;background:#173d70;border-radius:12px;touch-action:manipulation}.board-game__grid[data-board-game=connect-four]{grid-template-columns:repeat(7,minmax(0,1fr))}.board-game__grid[data-board-game=reversi]{grid-template-columns:repeat(8,minmax(0,1fr));background:#18744e}.board-game__cell{position:relative;aspect-ratio:1;border:0;border-radius:50%;background:#fff;color:transparent;box-shadow:inset 0 1px 4px #0003;cursor:pointer}.board-game__grid[data-board-game=reversi] .board-game__cell{border-radius:3px}.board-game__cell:disabled{cursor:default}.board-game__cell.is-red{background:#ef4444;box-shadow:inset 0 -2px 4px #7f1d1d66}.board-game__cell.is-black{background:#172033;box-shadow:inset 0 -2px 4px #0008}.board-game__cell:not(:disabled):hover,.board-game__cell:focus-visible{outline:3px solid #a3e635;outline-offset:1px}.board-game__cell:focus-visible{z-index:1}.board-game__actions{display:flex;gap:.75rem;margin-top:1rem}.kakuro{max-width:600px;margin:1rem auto}.kakuro__actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-block:1rem}.kakuro__viewport{overflow-x:auto}.kakuro__table{width:min(100%,440px);margin:1rem auto;border-collapse:separate;border-spacing:4px;table-layout:fixed}.kakuro__table caption{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.kakuro__table th{font-size:.85rem;line-height:1.2;text-align:center;overflow-wrap:anywhere}.kakuro__table td{padding:0}.kakuro__entry{width:100%;min-width:2.5rem;min-height:3rem;padding:.25rem;text-align:center;font-size:1.2rem;font-weight:650}.kakuro__entry[aria-invalid=true]{border-color:#b42318;background:#fff1f0}.board-game__grid[data-board-game=checkers]{grid-template-columns:repeat(8,minmax(0,1fr));gap:0;padding:0;border:4px solid #6d4c41;border-radius:4px;background:#ead7b7}.board-game[data-board-game=checkers] .board-game__cell{border-radius:0;box-shadow:none;background:#ead7b7}.board-game[data-board-game=checkers] .board-game__cell.is-dark-square{background:#6d4c41}.board-game[data-board-game=checkers] .board-game__cell.is-red.is-dark-square{background:radial-gradient(circle,#ef4444 0 38%,#6d4c41 40%)}.board-game[data-board-game=checkers] .board-game__cell.is-black.is-dark-square{background:radial-gradient(circle,#172033 0 38%,#6d4c41 40%)}.board-game[data-board-game=checkers] .board-game__cell.is-king:after{content:"\265b";position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:clamp(.75rem,4vw,1.5rem);text-shadow:0 1px 3px #111}.board-game[data-board-game=checkers] .board-game__cell.is-selected{outline:3px solid #a3e635;outline-offset:-3px;z-index:1}.board-game[data-board-game=checkers] .board-game__cell.is-legal:not(.is-red):not(.is-black):after{content:"";position:absolute;inset:39%;border-radius:50%;background:#a3e635}