.mt{max-width:640px;margin:0 auto;width:100%;display:grid;gap:10px}.mt-stage{position:relative;min-height:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:grid}.mt-area{display:grid;gap:12px;align-content:center;justify-items:center}.mt-cover{position:absolute;inset:0;border-radius:var(--radius);background:color-mix(in srgb,var(--surface) 94%,transparent);display:grid;place-content:center;justify-items:center;gap:10px;text-align:center;padding:18px;z-index:2}.mt-cover[hidden]{display:none}.mt-cover b{font-size:1.6rem}.mt-cover p{margin:0;color:var(--muted);max-width:38ch}.mt-start{min-width:160px;min-height:48px;font-size:1.05rem}.mt-best{margin:0;text-align:center;font-size:.92rem}.mt-info{font-weight:700;text-align:center;min-height:1.5em}.mt-grid{display:grid;gap:8px;width:min(100%,420px);aspect-ratio:1;touch-action:manipulation}.mt-tile{appearance:none;border:0;border-radius:10px;background:var(--accent-soft);cursor:pointer;padding:0;transition:background .12s,transform .12s;-webkit-tap-highlight-color:transparent}.mt-tile:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.mt-lit{background:var(--accent);transform:scale(1.03)}.mt-miss{background:var(--bad);opacity:.75}.mt-reveal{box-shadow:inset 0 0 0 4px var(--accent)}.mt-number{font-size:clamp(2.4rem,12vw,4rem);font-weight:900;font-variant-numeric:tabular-nums;letter-spacing:.06em;text-align:center;overflow-wrap:anywhere;max-width:100%}.mt-number[hidden],.mt-bar[hidden],.mt-form[hidden],.mt-result[hidden]{display:none}.mt-bar{width:min(100%,320px);height:8px;border-radius:4px;background:var(--surface-2);overflow:hidden}.mt-bar-fill{height:100%;background:var(--accent);transform-origin:left center}.mt-form{display:grid;gap:10px;justify-items:center;width:min(100%,360px)}.mt-form p{margin:0;font-weight:700}.mt-input{width:100%;font:inherit;font-size:1.8rem;font-weight:800;text-align:center;letter-spacing:.08em;padding:10px;border-radius:var(--radius-sm);border:2px solid var(--border);background:var(--bg);color:var(--text);font-variant-numeric:tabular-nums;box-sizing:border-box}.mt-input:focus{border-color:var(--accent);outline:none}.mt-result{display:grid;gap:4px;justify-items:center;text-align:center}.mt-label{margin:6px 0 0;color:var(--muted);font-size:.85rem}.mt-marked,.mt-answer{font-size:1.8rem;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.06em;overflow-wrap:anywhere}.mt-ok{color:var(--good)}.mt-bad{color:var(--bad);text-decoration:underline}.mt-wrong{color:var(--bad);text-decoration:line-through}.mt-result .btn{margin-top:10px;min-width:140px}.mt-word{font-size:clamp(2.2rem,11vw,3.4rem);font-weight:900;text-align:center;min-height:1.4em;border-radius:var(--radius-sm);padding:6px 16px}.mt-flash-ok{animation:mt-ok .35s ease-out}.mt-flash-bad{animation:mt-bad .4s ease-out}@keyframes mt-ok{0%{background:color-mix(in srgb,var(--good) 25%,transparent)}}@keyframes mt-bad{0%{background:color-mix(in srgb,var(--bad) 30%,transparent)}}.mt-choices{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:min(100%,380px)}.mt-choice{min-height:58px;font-size:1.2rem;font-weight:800;letter-spacing:.05em;display:flex;justify-content:center;align-items:center;gap:8px}.mt-choice kbd{font-size:.7rem;opacity:.7;border:1px solid currentColor;border-radius:4px;padding:0 4px;font-family:var(--mono);font-weight:400}.mt-chimp{display:grid;gap:6px;width:100%;touch-action:manipulation}.mt-cslot{aspect-ratio:1}.mt-cnum{appearance:none;aspect-ratio:1;border-radius:10px;border:2px solid var(--accent);background:var(--surface);color:var(--text);font-size:clamp(1rem,5vw,1.5rem);font-weight:800;cursor:pointer;padding:0;-webkit-tap-highlight-color:transparent}.mt-hidden .mt-cnum:not(.mt-cdone){color:transparent;background:var(--accent)}.mt-cdone{visibility:hidden}.mt-cwrong{background:var(--bad)!important;color:#fff!important;border-color:var(--bad)}.mt-cnum:focus-visible{outline:3px solid var(--focus);outline-offset:2px}@media (hover: none){.mt-choice kbd{display:none}}@media (prefers-reduced-motion: reduce){.mt-tile{transition:none}.mt-flash-ok,.mt-flash-bad{animation:none}}