.pb-piece{width:min(100%, var(--pb-page));margin:0 auto;padding:clamp(.75rem,2vw,1.5rem) clamp(.75rem,3vw,2rem) 7rem}.pb-piece .pb-play__bar{align-items:center;gap:.75rem;margin-bottom:1rem;display:flex}.pb-piece .pb-back{border-radius:var(--pb-r-pill);border:1.5px solid var(--pb-line);background:var(--pb-surface);width:40px;height:40px;color:var(--pb-ink);cursor:pointer;justify-content:center;align-items:center;padding:0;display:inline-flex}.pb-piece .pb-back:hover{background:var(--pb-surface-2)}.pb-piece .pb-play__meta{flex-wrap:wrap;flex:1;align-items:center;gap:.6rem;min-width:0;display:flex}.pb-piece .pb-play__level{font-family:var(--pb-font-display);font-size:var(--pb-fs-lg);font-weight:600}.pb-piece .pb-play__clock{color:var(--pb-ink-soft);font-size:var(--pb-fs-sm);font-variant-numeric:tabular-nums;margin-left:auto;font-weight:700}.pb-piece .pb-play__body{grid-template-columns:minmax(0,1fr) minmax(200px,280px);align-items:start;gap:clamp(1rem,2.5vw,2rem);display:grid}.pb-piece .pb-play__side{gap:.9rem;display:grid}.pb-piece .pb-calm-note{color:var(--pb-ink-soft);font-size:var(--pb-fs-sm);margin:0;line-height:1.55}.pb-piece .pb-win{z-index:40;background:color-mix(in oklab, var(--pb-ink) 52%, transparent);place-items:center;padding:1.25rem;display:grid;position:fixed;inset:0}.pb-piece .pb-win__card{text-align:center;background:var(--pb-surface);border:2px solid var(--pb-line-strong);border-radius:var(--pb-r-xl);width:min(420px,100%);box-shadow:0 8px 0 color-mix(in oklab, var(--pb-ink) 22%, transparent);justify-items:center;gap:.6rem;padding:1.8rem 1.5rem 1.5rem;display:grid}.pb-piece .pb-win__title{font-size:var(--pb-fs-xl);margin:0}.pb-piece .pb-win__sub{color:var(--pb-ink-soft);font-size:var(--pb-fs-sm);margin:0}.pb-piece .pb-win__actions{flex-wrap:wrap;justify-content:center;gap:.5rem;margin-top:.4rem;display:flex}.pb-piece-board{aspect-ratio:1;border:3px solid var(--pb-line);border-radius:var(--pb-r-lg);background:var(--pb-surface);width:min(100%,440px);box-shadow:var(--pb-lift-1);touch-action:manipulation;gap:6px;margin-inline:auto;padding:10px;display:grid}.pb-piece-cell{background:var(--pb-surface-2);color:var(--pb-ink);cursor:pointer;font-family:var(--pb-font-display);border:0;border-radius:12px;place-items:center;font-size:clamp(1rem,4vw,1.4rem);font-weight:700;display:grid}.pb-piece-cell:hover{background:var(--pb-surface-3)}.pb-piece-cell.is-on{background:color-mix(in oklab, var(--pb-accent) 55%, var(--pb-surface))}.pb-piece-cell.is-empty{cursor:default;background:0 0}.pb-piece-cell.is-here{box-shadow:0 0 0 3px color-mix(in oklab, var(--pb-brand) 40%, transparent)}.pb-piece-cell.is-goal{background:color-mix(in oklab, var(--pb-brand) 22%, var(--pb-surface))}.pb-piece-cell.is-selected{outline:3px solid var(--pb-brand)}.pb-piece-cell.is-found{background:color-mix(in oklab, var(--pb-brand) 28%, var(--pb-surface))}.pb-piece-cell.is-path{background:color-mix(in oklab, var(--pb-brand) 35%, var(--pb-surface))}.pb-piece-cell.is-wall{background:color-mix(in oklab, var(--pb-ink) 18%, var(--pb-bg));cursor:default}.pb-piece-cell:disabled{cursor:default}@media (max-width:900px){.pb-piece .pb-play__body{grid-template-columns:minmax(0,1fr)}}.pb-piece-board{aspect-ratio:1;border-radius:var(--pb-r-lg);background:var(--pb-surface);width:min(100%,420px);box-shadow:var(--pb-lift-1);grid-auto-rows:1fr;gap:4px;margin-inline:auto;padding:8px;display:grid}.pb-piece-slot{cursor:pointer;background:var(--pb-sky-soft);border:0;border-radius:8px;padding:0;overflow:hidden}.pb-piece-slot.is-selected{outline:3px solid var(--pb-brand)}.pb-piece-slot svg{width:100%;height:100%;display:block}