.game-challenge-section{border-top:var(--border-heavy);padding-block:clamp(5rem,10vw,9rem)}.game-challenge-heading{max-width:53rem;margin-bottom:clamp(2.5rem,6vw,4.5rem)}.game-challenge-heading h2{letter-spacing:-.055em;max-width:12ch;margin:.7rem 0 1.25rem;font-size:clamp(3rem,7vw,6rem);line-height:.9}.game-challenge-heading p{max-width:46rem;color:var(--color-muted);font-size:1.05rem;line-height:1.65}.game-challenge-controls{border:var(--border-heavy);box-shadow:7px 7px 0 var(--color-ink);background:#fff;padding:clamp(1.4rem,4vw,2.5rem)}.game-challenge-controls-heading{justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:2rem;display:flex}.game-challenge-controls-heading h2{letter-spacing:-.045em;margin:.5rem 0 0;font-size:clamp(2rem,4vw,3.6rem);line-height:.95}.game-challenge-search{gap:.6rem;display:grid}.game-challenge-search>span,.game-challenge-kinds legend{font-family:var(--font-mono);text-transform:uppercase;font-size:.66rem;font-weight:900}.game-challenge-search input{border:2px solid var(--color-ink);background:var(--color-paper);width:100%;color:var(--color-ink);font:inherit;border-radius:0;padding:1rem 1.1rem;font-size:1rem}.game-challenge-search input:focus{outline:4px solid var(--color-yellow);outline-offset:2px}.game-challenge-kinds{border:0;margin:1.5rem 0 0;padding:0}.game-challenge-kinds legend{margin-bottom:.7rem}.game-challenge-kind-options{flex-wrap:wrap;gap:.65rem;display:flex}.game-challenge-kind-options label{cursor:pointer;position:relative}.game-challenge-kind-options input{opacity:0;pointer-events:none;position:absolute}.game-challenge-kind-options span{border:2px solid var(--color-ink);font-family:var(--font-mono);text-transform:uppercase;background:#fff;padding:.75rem 1rem;font-size:.68rem;font-weight:900;display:block}.game-challenge-kind-options input:checked+span{background:var(--color-yellow);box-shadow:3px 3px 0 var(--color-ink)}.game-challenge-kind-options input:focus-visible+span{outline:4px solid var(--color-blue);outline-offset:3px}.game-challenge-toolbar{border-bottom:2px solid var(--color-ink);justify-content:space-between;align-items:baseline;gap:2rem;padding-block:3rem 1.5rem;display:flex}.game-challenge-toolbar strong{font-size:clamp(1.5rem,3vw,2.35rem)}.game-challenge-toolbar span{color:var(--color-muted);font-family:var(--font-mono);text-transform:uppercase;font-size:.65rem;font-weight:800}.game-challenge-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1.5rem,4vw,3rem);padding-top:2rem;display:grid}.game-challenge-card{border:var(--border-heavy);min-height:28rem;box-shadow:7px 7px 0 var(--color-ink);background:#fff;flex-direction:column;padding:clamp(1.5rem,4vw,2.4rem);display:flex}.game-challenge-card[hidden]{display:none}.game-challenge-card:nth-child(4n+1){border-top:.45rem solid var(--color-yellow)}.game-challenge-card:nth-child(4n+2){border-top:.45rem solid var(--color-blue)}.game-challenge-card:nth-child(4n+3){border-top:.45rem solid var(--color-red)}.game-challenge-card:nth-child(4n){border-top:.45rem solid var(--color-green)}.game-challenge-card header{justify-content:space-between;align-items:center;gap:1rem;display:flex}.game-challenge-index,.game-challenge-type,.game-challenge-parent{font-family:var(--font-mono);text-transform:uppercase;font-size:.62rem;font-weight:900}.game-challenge-index{border:2px solid var(--color-ink);background:var(--color-yellow);padding:.4rem}.game-challenge-type{color:var(--color-red)}.game-challenge-card-copy{padding-block:clamp(2.5rem,6vw,4rem)}.game-challenge-parent{color:var(--color-muted);margin:0 0 .75rem}.game-challenge-card h3{letter-spacing:-.055em;margin:0;font-size:clamp(2.4rem,5vw,4.5rem);line-height:.88}.game-challenge-card-copy>p:last-child{color:var(--color-muted);margin:1.3rem 0 0;line-height:1.6}.game-challenge-card footer{gap:1rem;margin-top:auto;display:grid}.game-challenge-card footer>strong{font-family:var(--font-mono);text-transform:uppercase;font-size:.66rem;font-weight:900}.game-challenge-link{border:2px solid var(--color-ink);background:var(--color-yellow);box-shadow:4px 4px 0 var(--color-ink);color:var(--color-ink);font-family:var(--font-mono);text-transform:uppercase;justify-content:space-between;align-items:center;gap:1rem;padding:1rem;font-size:.7rem;font-weight:900;text-decoration:none;transition:transform .12s,box-shadow .12s;display:flex}.game-challenge-link:hover{box-shadow:2px 2px 0 var(--color-ink);transform:translate(2px,2px)}.game-challenge-link:focus-visible{outline:4px solid var(--color-blue);outline-offset:3px}.game-challenge-empty{border:var(--border-heavy);background:var(--color-yellow);box-shadow:7px 7px 0 var(--color-ink);grid-template-columns:auto 1fr;align-items:center;gap:2rem;margin-top:2rem;padding:clamp(2rem,5vw,4rem);display:grid}.game-challenge-empty[hidden]{display:none}.game-challenge-empty>span{font-size:clamp(6rem,14vw,10rem);font-weight:900;line-height:.8}.game-challenge-empty h2{margin:0}.game-challenge-empty p{max-width:40rem;line-height:1.55}@media (width<=800px){.game-challenge-controls-heading,.game-challenge-toolbar{flex-direction:column;align-items:flex-start}.game-challenge-grid{grid-template-columns:1fr}.game-challenge-card{min-height:24rem}.game-challenge-empty{grid-template-columns:1fr}}