[hidden]{display:none!important}.alphabet-tabs{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:4px;max-width:560px}.alphabet-tabs :is(button,a.ue-tab){min-width:0;padding:13px 7px;font-size:clamp(12px,3.4vw,16px);white-space:nowrap}.study-layout{max-width:940px;margin:25px auto;display:grid;grid-template-columns:minmax(0,520px) 1fr;gap:25px;align-items:start}.study-top{display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap;margin:20px 0}.study-decks{display:flex;gap:8px}.study-decks :is(button,a.ue-tab)[aria-pressed=true]{background:var(--navy);color:#fff}.study-decks :is(button,a.ue-tab){min-height:44px}.study-card{display:block;width:100%;padding:0;border:1px solid var(--border);border-radius:18px;overflow:hidden;background:var(--linen);color:var(--navy);box-shadow:0 8px 28px #193b4510}.study-card img{display:block;width:100%;aspect-ratio:1;object-fit:contain}.study-card .study-word{display:block;font-size:clamp(42px,9vw,68px);letter-spacing:.13em;padding:10px 15px 15px}.study-card .study-tap{display:block;color:var(--muted);font-size:12px;padding:0 15px 20px}.study-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:16px}.study-actions :is(button,a.ue-tab){min-height:48px}.study-actions .draw{background:var(--navy);color:white}.study-actions .discard{background:var(--yellow);border-color:var(--border)}.study-actions .undo{grid-column:1/-1}.study-sidebar{background:var(--sky);border:1px solid var(--border);border-radius:12px;padding:20px}.study-sidebar h2{font:26px Georgia,serif;margin:0 0 12px}.study-sidebar p,.study-counts{font-size:13px;line-height:1.6;color:var(--muted)}.study-pile{display:flex;gap:7px;flex-wrap:wrap;max-height:220px;overflow:auto;margin:14px 0}.study-status{min-height:40px;margin:14px 0;font-size:13px;line-height:1.5;color:var(--muted)}.study-help{margin-top:18px;border:1px solid var(--border);border-radius:20px;background:var(--sky);padding:13px 16px}.study-help summary,.study-translation summary{cursor:pointer;font-size:13px;min-height:28px;line-height:28px}.study-help p{font-size:12px;color:var(--muted);line-height:1.5}.study-keys{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px;margin-top:10px}.study-keys :is(button,a.ue-tab){padding:10px 0;border:1px solid var(--border);border-radius:6px;background:var(--linen);color:var(--navy);font-size:18px;min-height:44px}.study-translation{margin-top:13px;text-align:center}.study-translation p{margin:5px 0 12px;font-size:18px}.study-empty{padding:70px 25px;border:1px dashed var(--muted);border-radius:18px;text-align:center;line-height:1.7}.study-panel :is(button,a.ue-tab):disabled{opacity:.45;cursor:default}.study-panel{padding-bottom:20px}.study-heading{font:30px Georgia,serif;margin:0 0 8px}.study-lead{font-size:14px;line-height:1.6;color:var(--muted)}.study-sidebar details summary{cursor:pointer}.study-sidebar .control{margin-top:6px}@media(max-width:700px){.study-layout{grid-template-columns:1fr;gap:20px}.study-card{max-width:480px;margin:auto}.study-sidebar{padding:17px}.study-top{align-items:flex-start}.study-keys{grid-template-columns:repeat(7,minmax(0,1fr))}}
.study-card img{height:auto}.study-card{touch-action:manipulation}

.study-help{margin-top:10px}.study-undo-row{margin-top:10px}.study-undo-row :is(button,a.ue-tab){width:100%;min-height:44px}.study-pile-corners{display:flex;justify-content:space-between;gap:16px;margin:0 6px 18px}.study-mini-pile{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--muted);min-height:56px}.discard-target{flex-direction:row-reverse;text-align:right}.pile-back{display:grid;place-items:center;width:38px;height:50px;border:2px solid var(--border);border-radius:5px;background:repeating-linear-gradient(45deg,var(--navy) 0 7px,var(--blue) 7px 8px);box-shadow:3px 3px 0 var(--border),6px 6px 0 var(--border);color:var(--yellow);font-size:21px}.discard-target .pile-back{background:repeating-linear-gradient(45deg,var(--yellow) 0 7px,var(--wheat) 7px 8px);color:var(--navy)}.study-mini-pile strong{display:block;font-size:17px;margin-top:3px}.study-flying-card{contain:layout paint;transform-origin:center;will-change:transform,opacity}.study-card{transform-origin:center}@media(prefers-reduced-motion:reduce){.study-card{transition:none}}

.study-decks{flex-wrap:wrap}

:is(button,a.ue-tab).study-mini-pile{font-family:inherit;border:1px solid var(--border);border-radius:12px;background:var(--linen);padding:10px 12px;min-width:44px;min-height:64px;cursor:pointer;color:var(--navy);text-align:left}:is(button,a.ue-tab).study-mini-pile.discard-target{text-align:right}:is(button,a.ue-tab).study-mini-pile:not(:disabled):hover{background:var(--sky);border-color:var(--blue)}:is(button,a.ue-tab).study-mini-pile:focus-visible{outline:3px solid var(--blue);outline-offset:4px}:is(button,a.ue-tab).study-mini-pile:disabled{opacity:.45;cursor:default}