.t3d{width:100%}.t3d-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(8px,2vw,16px);width:min(880px,100%)}.t3d-layer{display:grid;gap:4px;justify-items:center;min-width:0}.t3d-layer-name{font-size:.78rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.t3d-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:3px;width:100%;aspect-ratio:1;padding:4px;background:var(--cell-line);border-radius:10px;box-shadow:var(--shadow);container-type:inline-size}.t3d-board.tilt{grid-template-columns:minmax(0,1fr);width:min(360px,100%);gap:0;perspective:900px}.t3d-board.tilt .t3d-layer{margin-top:-14%}.t3d-board.tilt .t3d-layer:first-child{margin-top:0}.t3d-board.tilt .t3d-grid{transform:rotateX(52deg) rotate(-8deg);transform-origin:50% 60%}.t3d-board.tilt .t3d-layer-name{position:relative;z-index:1;justify-self:start}.t3d-cell{appearance:none;border:0;margin:0;padding:0;min-width:0;aspect-ratio:1;border-radius:6px;position:relative;background:var(--cell);color:var(--text);font:inherit;font-weight:800;font-size:15cqi;line-height:1;display:grid;place-items:center;cursor:default;transition:background-color .12s}.t3d-cell.playable{cursor:pointer}.t3d-cell:focus-visible{outline:3px solid var(--focus);outline-offset:-3px}.t3d-cell.p1{color:var(--p1)}.t3d-cell.p2{color:var(--p3)}@media (hover: hover){.t3d-cell.playable:hover{background:var(--accent-soft)}.t3d-board[data-turn="1"] .t3d-cell.playable:hover:after{content:"X";color:var(--p1);opacity:.35}.t3d-board[data-turn="2"] .t3d-cell.playable:hover:after{content:"O";color:var(--p3);opacity:.35}}.t3d-cell.last{box-shadow:inset 0 0 0 3px var(--hl)}.t3d-cell.win{background:var(--hl);animation:t3d-pulse .7s ease-in-out infinite alternate}@keyframes t3d-pulse{0%{transform:scale(.92)}to{transform:scale(1.04)}}@media (prefers-reduced-motion: reduce){.t3d-cell.win{animation:none}}.t3d-cell.can-win{box-shadow:inset 0 0 0 3px var(--good)}.t3d-cell.must-block{box-shadow:inset 0 0 0 3px var(--danger)}.t3d-legend{font-size:.85rem;color:var(--muted);text-align:center;min-height:1.4em;display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center;max-width:640px}.t3d-key{display:inline-block;width:.9em;height:.9em;border-radius:3px}.t3d-key.can-win{box-shadow:inset 0 0 0 2px var(--good)}.t3d-key.must-block{box-shadow:inset 0 0 0 2px var(--danger)}@media (max-width: 640px){.t3d-board:not(.tilt){grid-template-columns:repeat(2,minmax(0,1fr));width:min(420px,100%)}}