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.numpad{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex;position:absolute;inset:0}.mem .digits{border-radius:var(--r-card);max-width:100%;box-shadow:var(--sh-sm);color:#1b1b1f;font-family:var(--font-display);letter-spacing:.06em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;background:#fff;border:3.5px solid #1b1b1f;margin:0;padding:8px 22px;font-size:clamp(30px,9vw,54px);font-weight:700;line-height:1.2}.mem .digits:empty{display:none}.mem .answer{flex-direction:column;align-items:stretch;gap:10px;width:100%;display:flex}.mem .answer[hidden]{display:none}.mem .answer-l{font-family:var(--font-display);color:var(--on-pastel);font-size:16px;font-weight:600}.mem .answer-i{border-radius:var(--r-tile);color:#1b1b1f;width:100%;min-height:56px;font-family:var(--font-display);letter-spacing:.08em;text-align:center;background:#fff;border:3.5px solid #1b1b1f;padding:0 14px;font-size:30px;font-weight:600}.mem 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text.cap{font-family:var(--font-display);font-size:12px;font-weight:600}.mem .overlay{z-index:1;border-radius:inherit;text-align:center;background:var(--yellow);color:var(--on-pastel);flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:20px 24px;display:flex;position:absolute;inset:0}.mem:is([data-phase=show],[data-phase=recall]) .overlay{display:none}.mem:is([data-phase=over],[data-phase=complete]) .overlay{background:var(--st-result);color:var(--st-result-ink)}.mem .overlay .title{font-size:52px;font-weight:700;line-height:1.05}.mem .overlay .sub{max-width:340px;color:var(--on-pastel2);overflow-wrap:anywhere}.mem:is([data-phase=over],[data-phase=complete]) .overlay .sub{color:var(--st-result-sub)}.mem .overlay .cue svg{display:none}.mem[data-phase=over] .overlay .cue svg{width:44px;height:44px;display:block}.mem .modeseg{background:#fff;border:3px solid #1b1b1f;border-radius:999px;gap:2px;padding:3px;display:inline-flex}.mem .modeseg button{color:#1b1b1f;min-height:44px;font-family:var(--font-display);cursor:pointer;background:0 0;border:0;border-radius:999px;padding:0 14px;font-size:16px;font-weight:600}.mem .modeseg button[aria-pressed=true]{background:var(--green);box-shadow:inset 0 0 0 2.5px #1b1b1f}.mem .modeseg button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.mem .startb{border:var(--bw) solid #1b1b1f;border-radius:var(--r-btn);background:var(--green);color:#1b1b1f;min-width:160px;min-height:56px;box-shadow:var(--sh-sm);font-family:var(--font-display);cursor:pointer;margin-top:4px;padding:0 28px;font-size:22px;font-weight:700}.mem:is([data-phase=over],[data-phase=complete]) .overlay .startb{background:var(--yellow)}.mem .startb:active{transform:translate(3px,3px);box-shadow:0 0 #1b1b1f}.mem .startb:focus-visible{outline:3px solid var(--accent);outline-offset:4px}@media (width<=1000px){.mem .overlay .title{font-size:44px}}@media (width<=760px){.stage.mem{gap:10px;padding:56px 10px 16px}.mem .grid{gap:6px}.mem .cell{border-radius:10px;box-shadow:2px 2px #1b1b1f}.mem .topbar{white-space:nowrap;font-size:14px}.mem .marks svg{width:22px;height:22px}.mem .status{font-size:15px}.mem:is([data-phase=show],[data-phase=recall]) .status{padding:5px 16px;font-size:17px}.mem .overlay{gap:10px;padding:56px 12px 14px}.mem .overlay .title{font-size:36px}.mem .modeseg button{padding:0 12px;font-size:15px}.mem .seg-long{display:none}}.how h3{margin-top:8px;font-size:19px;font-weight:700}.rules caption{text-align:left}.cite{margin-left:1px;font-size:.7em;line-height:0}.cite a{color:var(--ink);padding:0 2px;font-weight:700}.cite+.cite:before{content:","}.src-sec .refs{flex-direction:column;gap:10px;margin:0;padding-left:1.6em;display:flex}.src-sec .refs li{max-width:820px;color:var(--ink2);overflow-wrap:anywhere;scroll-margin-top:16px;font-size:15px;line-height:1.55}.src-sec .refs li:target{background:var(--hi)}.src-sec 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