@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";._card_1lys5_1{width:min(320px,88vw);min-height:192px;padding:var(--space-2);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-sm);color:var(--text-primary);border-radius:12px;gap:10px;transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1),border-color .2s;display:grid}@media (hover:hover) and (pointer:fine){._card_1lys5_1:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}}@media (pointer:coarse){._card_1lys5_1{max-width:100%}}@media (pointer:coarse) and (width<=620px){._card_1lys5_1{min-height:120px;padding:var(--space-1)}}._title_1lys5_36{margin:0;font-size:18px;font-weight:600;line-height:1.35}._description_1lys5_43{color:var(--text-secondary);word-wrap:break-word;margin:0;font-size:14px;line-height:1.45}._year_1lys5_51{color:var(--accent);letter-spacing:.01em;opacity:0;margin:0;font-size:22px;font-weight:500;transition:opacity .2s}._revealedYear_1lys5_61{opacity:1}._correct_1lys5_65{border-color:var(--correct);box-shadow:0 0 0 1px #22c55e73, 0 0 18px #22c55e59, var(--shadow-sm);animation:.2s ease-out _correctPulse_1lys5_1}._incorrect_1lys5_71{border-color:var(--incorrect);box-shadow:0 0 0 1px #ef444473, 0 0 14px #ef444447, var(--shadow-sm);animation:.35s _incorrectShake_1lys5_1}@keyframes _correctPulse_1lys5_1{0%{transform:scale(.95)}to{transform:scale(1)}}@keyframes _incorrectShake_1lys5_1{0%{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}to{transform:translate(0)}}._stack_15n7e_1{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);padding:var(--space-2);border-radius:12px;width:100%;min-width:0;max-width:280px;min-height:190px;overflow:hidden}@media (pointer:coarse){._stack_15n7e_1{max-width:100%;min-height:0}._preview_15n7e_20{min-height:0}}._stack_15n7e_1 h3,._count_15n7e_26{margin:0}._stack_15n7e_1 h3{font-size:18px;font-weight:600}._count_15n7e_26{color:var(--text-secondary);font-size:14px}._preview_15n7e_20{margin-top:var(--space-2);min-height:128px;position:relative}._empty_15n7e_46{color:var(--text-secondary);margin:0;font-size:14px}._card_15n7e_52{border:1px solid var(--border);background:#fafafa;border-radius:10px;justify-content:space-between;align-items:center;padding:8px 10px;display:flex;position:absolute;left:0;right:0;box-shadow:0 1px 4px #0000000f}._card_15n7e_52 p,._card_15n7e_52 span{margin:0;font-size:13px}._card_15n7e_52 p{text-overflow:ellipsis;white-space:nowrap;max-width:68%;overflow:hidden}._card_15n7e_52 span{color:var(--accent);font-weight:500}._end_xg2p0_1{text-align:center;max-width:480px;min-height:70vh;padding:var(--space-3);border-radius:12px;align-content:center;place-items:center;gap:12px;margin:0 auto;display:grid}._end_xg2p0_1 h2,._end_xg2p0_1 p{margin:0}._end_xg2p0_1 h2{font-size:28px;font-weight:600}._end_xg2p0_1 p{color:var(--text-secondary)}._actions_xg2p0_28{margin-top:var(--space-2);gap:var(--space-1);flex-wrap:wrap;justify-content:center;display:flex}._hud_wmhrv_1{text-align:center;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px 24px;display:flex}._hud_wmhrv_1 p{color:var(--text-secondary);margin:0;font-size:14px}._hud_wmhrv_1 strong{color:var(--text-primary);font-weight:600}._actions_wmhrv_21{justify-content:center;gap:var(--space-1);align-items:center;display:flex}._actions_wmhrv_21 button{min-width:96px}@media (width<=980px){._hud_wmhrv_1{gap:10px 18px}}@media (width<=620px){._hud_wmhrv_1{flex-direction:column;gap:10px}}._start_15dn5_1{align-content:center;place-items:center;gap:var(--space-3);text-align:center;max-width:720px;min-height:70vh;padding:var(--space-3);margin:0 auto;display:grid}._start_15dn5_1 h1{letter-spacing:.01em;margin:0;font-size:clamp(36px,7vw,52px);font-weight:600}._start_15dn5_1 p{max-width:42ch;color:var(--text-secondary);margin:0;font-size:14px;line-height:1.55}._card_1yk9f_1{--focus-scale:1;--focus-opacity:1;align-items:center;min-height:124px;display:grid}@media (pointer:coarse) and (width<=620px){._card_1yk9f_1{min-height:100px}._surface_1yk9f_14{min-height:100px;padding:8px}}._surface_1yk9f_14{background:var(--surface);border:1px solid var(--border);min-height:124px;box-shadow:var(--shadow-sm);transform-origin:50%;transform:scale(var(--focus-scale));opacity:var(--focus-opacity);border-radius:12px;align-content:center;gap:8px;padding:12px;transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1),opacity .25s cubic-bezier(.4,0,.2,1);animation:.25s cubic-bezier(.4,0,.2,1) _enterCard_1yk9f_1;display:grid}@media (hover:hover) and (pointer:fine){._card_1yk9f_1:hover ._surface_1yk9f_14{transform:translateY(-2px) scale(var(--focus-scale));box-shadow:var(--shadow-md)}}._preview_1yk9f_45 ._surface_1yk9f_14{background:#f9faff;border-style:dashed;border-color:#6366f173}._title_1yk9f_51{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:14px;font-weight:600;line-height:1.3;display:-webkit-box;overflow:hidden}._year_1yk9f_62{color:var(--accent);margin:0;font-size:22px;font-weight:500}@keyframes _enterCard_1yk9f_1{0%{opacity:0;transform:scale(calc(var(--focus-scale) * .98)) translateY(6px)}to{opacity:var(--focus-opacity);transform:scale(var(--focus-scale)) translateY(0)}}._marker_1qsy9_1{min-width:44px;min-height:124px;box-shadow:none;cursor:pointer;opacity:.95;background:0 0;border:0;place-items:center;padding:0;transition:transform .25s cubic-bezier(.4,0,.2,1),opacity .25s cubic-bezier(.4,0,.2,1);display:grid}._tick_1qsy9_15{background:var(--border);border-radius:999px;width:4px;height:44px;transition:transform .25s cubic-bezier(.4,0,.2,1),background-color .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1);box-shadow:0 0 0 1px #1118270a}._selected_1qsy9_25 ._tick_1qsy9_15,._hovered_1qsy9_26 ._tick_1qsy9_15{background:var(--accent);transform:scaleY(1.4);box-shadow:0 0 10px #6366f142}._selected_1qsy9_25{opacity:1;transform:scale(1.04)}._hovered_1qsy9_26{opacity:1;transform:scale(1.02)}._correct_1qsy9_42 ._tick_1qsy9_15{background:var(--correct);box-shadow:0 0 12px #22c55e47}._chosenWrong_1qsy9_47 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p{color:var(--text-secondary);margin:0;font-size:14px}._keyboardHint_1axzh_46{color:var(--text-secondary);white-space:nowrap;margin:0;font-size:12px}._timelineStage_1axzh_53{min-width:0}._interactionRow_1axzh_57{align-items:start;gap:var(--space-2);grid-template-columns:minmax(0,1fr) 260px;display:grid}._currentCardPanel_1axzh_64{justify-self:center;justify-items:center;width:min(100%,420px);display:grid}._wrongPile_1axzh_71{justify-self:end;width:100%}._draggableCard_1axzh_76{touch-action:none;cursor:grab;-webkit-user-select:none;user-select:none}._draggableCard_1axzh_76 *{-webkit-user-select:none;user-select:none}._dragSource_1axzh_88{opacity:0;transform:scale(.98)}._noCard_1axzh_93{color:var(--text-secondary);margin:0;font-size:14px}._resolve_1axzh_99{justify-items:center;gap:4px;min-height:56px;display:grid}._resolve_1axzh_99 p{text-align:center;margin:0}._autoAdvance_1axzh_111{color:var(--text-secondary);font-size:12px}._footer_1axzh_116{padding:0 var(--space-1)}._dragGhost_1axzh_120{z-index:100;pointer-events:none;filter:drop-shadow(0 8px 20px #0003);position:fixed;transform:scale(1.03)}._snapGhost_1axzh_128{z-index:101;pointer-events:none;filter:drop-shadow(0 8px 20px #0000002e);transition:transform .25s cubic-bezier(.4,0,.2,1);position:fixed}@media (width<=900px) and (orientation:portrait){._shell_1axzh_1{padding:var(--space-2)}._gameGrid_1axzh_12{gap:var(--space-2)}._interactionRow_1axzh_57{grid-template-columns:1fr;justify-items:center}._wrongPile_1axzh_71{justify-self:center;width:100%;max-width:420px}}@media (width<=900px) and (orientation:landscape){._shell_1axzh_1{padding:var(--space-1) var(--space-2)}._gameGrid_1axzh_12{gap:var(--space-1)}._interactionRow_1axzh_57{grid-template-columns:minmax(0,1fr) 200px;align-items:start}._currentCardPanel_1axzh_64{padding:var(--space-1);gap:8px;overflow:hidden}._currentCardPanel_1axzh_64 h2{font-size:14px}._wrongPile_1axzh_71{width:100%}}@media (width<=620px) and (orientation:portrait){._shell_1axzh_1{padding:var(--space-1)}._header_1axzh_20{flex-direction:column;align-items:flex-start;gap:4px}._keyboardHint_1axzh_46{display:none}._currentCardPanel_1axzh_64{width:100%;padding:var(--space-1);gap:8px}._currentCardPanel_1axzh_64 h2{font-size:14px}._footer_1axzh_116{padding:0}}:root{--bg:#f7f7f9;--surface:#fff;--accent:#6366f1;--correct:#22c55e;--incorrect:#ef4444;--text-primary:#111827;--text-secondary:#6b7280;--border:#e5e7eb;--shadow-sm:0 2px 8px #00000014;--shadow-md:0 6px 16px #0000001f;--space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px}*{box-sizing:border-box}html,body,#root{overscroll-behavior-x:none;min-height:100%;margin:0}body{background:var(--bg);color:var(--text-primary);font-family:Inter,sans-serif}button{border:1px solid var(--border);background:var(--surface);color:var(--text-primary);cursor:pointer;border-radius:12px;min-height:44px;padding:0 18px;font-family:inherit;font-size:14px;font-weight:600;line-height:1;transition:background-color .16s,border-color .16s,transform .16s,box-shadow .16s;position:relative;overflow:hidden}button:after{content:"";left:var(--ripple-x,50%);top:var(--ripple-y,50%);opacity:0;pointer-events:none;background:#6366f12e;border-radius:50%;width:10px;height:10px;position:absolute;transform:translate(-50%,-50%)scale(0)}button.ripple-active:after{animation:.45s ease-out ripple}button:hover:enabled{box-shadow:var(--shadow-sm);border-color:#d1d5db}button:active:enabled{transform:translateY(1px)}button:disabled{opacity:.6;cursor:not-allowed}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@keyframes ripple{0%{opacity:.65;transform:translate(-50%,-50%)scale(0)}to{opacity:0;transform:translate(-50%,-50%)scale(16)}}