.challenge-library .arcade-tile{align-items:start}.challenge-tile-best{font-size:.85rem!important;margin-top:1rem!important}.challenge-rule{max-width:62ch;line-height:1.6}.challenge-hud{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;border-top:1px solid currentColor}.challenge-hud strong{font-size:clamp(1.1rem,4vw,1.6rem)}.challenge-field{min-height:210px;padding:12px 0}.challenge-actions{display:flex;gap:12px;flex-wrap:wrap}.challenge-ready{display:flex;justify-content:center}.challenge-ready .game-preview{width:190px;border-radius:24px}.challenge-reaction{display:block;width:100%;min-height:230px;border:3px solid currentColor;border-radius:26px;background:#8f2d22;color:#fff8e9;font-family:inherit;line-height:1.1;touch-action:manipulation;cursor:pointer;font-size:clamp(2rem,8vw,4rem);font-weight:900}.challenge-reaction.go{background:#0f5b58}.challenge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:400px;margin:auto}.challenge-grid button{min-width:0;min-height:72px;aspect-ratio:1.2;border:2px solid #0f5b58;border-radius:18px;background:#f5f0e5;color:#0f5b58;font-size:1.4rem;font-weight:800;touch-action:manipulation;cursor:pointer}.challenge-grid button.is-target{background:#8f2d22;color:#fff8e9;border-color:#8f2d22}.sequence-four{grid-template-columns:repeat(2,1fr);max-width:340px}.sequence-four button{background:#0f5b58;color:#fff8e9;opacity:1}.sequence-four button.lit{background:#f2c46e;color:#181b18;border:6px solid #8f2d22}.sequence-four button:disabled:not(.lit){opacity:.65}.precision-track{position:relative;height:100px;background:#0f5b58;border-radius:20px;overflow:hidden;margin:42px 0 22px;border:2px solid #0f5b58}.precision-zone{position:absolute;left:50%;width:32%;top:0;bottom:0;transform:translateX(-50%);background:#f2c46e}.precision-centre{position:absolute;left:50%;top:0;bottom:0;width:3px;background:#8f2d22}.precision-marker{position:absolute;top:8px;bottom:8px;width:12px;left:50%;transform:translateX(-50%);border:2px solid #fff;background:#8f2d22;border-radius:8px}.precision-caption{text-align:center;font-weight:800;letter-spacing:.08em}.challenge-shell button:focus-visible{outline:3px solid #e56a2e;outline-offset:4px}.challenge-shell button[hidden]{display:none}.challenge-shell{max-width:640px;margin:auto}.challenge-shell .game-feedback{min-height:3.2em}@media(max-width:360px){.challenge-hud{align-items:start;flex-direction:column}.challenge-grid button{min-height:64px}}@media(prefers-reduced-motion:reduce){.challenge-shell *{transition:none!important;animation:none!important}}

@media(max-width:600px){.challenge-library{grid-template-columns:1fr!important;gap:24px!important}.challenge-library .arcade-tile{display:grid;grid-template-columns:104px minmax(0,1fr);gap:16px}.challenge-library .game-preview{width:104px!important;height:110px!important;min-height:0!important;border-radius:18px}.challenge-library .eyebrow{font-size:.68rem;letter-spacing:.055em;line-height:1.5;margin:0 0 5px}.challenge-library h3{font-size:1.2rem;line-height:1.2;margin:0 0 8px}.challenge-library p{font-size:.92rem;line-height:1.45}.challenge-library .challenge-tile-best{margin-top:8px!important}.challenge-library .link{margin-top:8px}}
.challenge-library .game-preview svg,.challenge-ready .game-preview svg{display:block;width:100%!important;height:100%!important;min-width:0!important;object-fit:contain}.challenge-library .game-preview{padding:8px;box-sizing:border-box}.challenge-ready .game-preview{height:180px}
@media(max-width:600px){.challenge-library .arcade-tile>div:last-child{padding:0!important}main .challenge-library p{font-size:15px!important;line-height:1.45!important}main .challenge-library p.eyebrow{font-size:11px!important}main .challenge-library p.challenge-tile-best{font-size:13px!important}.challenge-library .arcade-tile .link{min-height:44px;display:inline-flex;align-items:center}.challenge-library .arcade-tile{gap:16px;margin-bottom:8px}}