:root{--bg:#fbfaf7;--surface:#fff;--ink:#1d1d1b;--soft:#55534e;--muted:#8a8780;--line:#e7e4dd;--tile:#f2f0ea;--tile-strong:#e4e1d8;--accent:#3b5bdb;--accent-soft:#e7ecfc;--ok:#2b8a3e;--ok-soft:#e3f3e6;--bad:#d9480f;--bad-soft:#fde9e0;--radius:1rem;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root[data-theme=auto]{--bg:#141414;--surface:#1b1b1a;--ink:#f1f0ec;--soft:#c4c2bb;--muted:#8f8d86;--line:#2d2d2b;--tile:#242423;--tile-strong:#31312f;--accent:#7c93ff;--accent-soft:#222a47;--ok:#51cf66;--ok-soft:#1c3322;--bad:#ff8a5b;--bad-soft:#3a2219;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--bg:#141414;--surface:#1b1b1a;--ink:#f1f0ec;--soft:#c4c2bb;--muted:#8f8d86;--line:#2d2d2b;--tile:#242423;--tile-strong:#31312f;--accent:#7c93ff;--accent-soft:#222a47;--ok:#51cf66;--ok-soft:#1c3322;--bad:#ff8a5b;--bad-soft:#3a2219;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}:root{font-size:112.5%}:root[data-size=l]{font-size:125%}:root[data-size=xl]{font-size:143.75%}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans,Hiragino Sans,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.45}h1,h2,h3{letter-spacing:-.015em;line-height:1.15}h2{margin:0 0 .75rem;font-size:1.35rem}a{color:inherit}button{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:.5rem}.muted{color:var(--muted)}.small{font-size:.9rem}.top{align-items:center;gap:1rem;max-width:72rem;margin:0 auto;padding:.9rem 1rem;display:flex}.brand{letter-spacing:-.01em;align-items:center;gap:.55rem;font-size:1.1rem;font-weight:700;text-decoration:none;display:flex}.top-nav{gap:1.25rem;margin-left:1rem;display:flex}.top-nav a{color:var(--soft);font-size:.95rem;text-decoration:none}.top-nav a:hover{color:var(--ink)}.top-tools{align-items:center;gap:.45rem;margin-left:auto;display:flex}.lang{position:relative}.lang summary{cursor:pointer;border:1.5px solid var(--line);border-radius:.65rem;place-items:center;min-width:2.6rem;height:2.6rem;padding:0 .7rem;font-size:.85rem;font-weight:650;list-style:none;display:grid}.lang summary::-webkit-details-marker{display:none}.lang ul{z-index:20;background:var(--surface);border:1.5px solid var(--line);border-radius:.9rem;min-width:11rem;margin:0;padding:.35rem;list-style:none;position:absolute;top:calc(100% + .4rem);right:0;box-shadow:0 10px 30px #00000014}.lang a{border-radius:.55rem;padding:.5rem .75rem;text-decoration:none;display:block}.lang a:hover,.lang a[aria-current]{background:var(--tile)}.icon-btn{border:1.5px solid var(--line);cursor:pointer;background:0 0;border-radius:.65rem;place-items:center;width:2.6rem;height:2.6rem;display:grid}.icon-btn:hover,.lang summary:hover{border-color:var(--muted)}.main{max-width:72rem;margin:0 auto;padding:0 1rem}.foot{border-top:1px solid var(--line);max-width:72rem;color:var(--muted);flex-direction:column;gap:.5rem;margin:4rem auto 0;padding:2rem 1rem 3rem;font-size:.9rem;display:flex}.foot p{margin:0}.foot nav{gap:1rem;display:flex}.foot a{color:var(--soft);text-decoration:none}.foot a:hover{text-decoration:underline}.foot-langs{flex-wrap:wrap;gap:.25rem .9rem;display:flex}.foot-langs a{color:var(--muted)}.sheet{background:var(--surface);color:var(--ink);border:none;border-radius:1.25rem;width:min(28rem,92vw);padding:0}.sheet::backdrop{background:#00000059}.sheet-body{flex-direction:column;gap:1.1rem;padding:1.5rem;display:flex}.sheet h2{margin:0}.set-row{border:none;margin:0;padding:0}.set-row legend{margin-bottom:.45rem;padding:0;font-size:.95rem;font-weight:600}.seg{border:1.5px solid var(--line);border-radius:.85rem;gap:3px;padding:3px;display:flex}.seg button{min-height:2.7rem;color:var(--soft);cursor:pointer;background:0 0;border:none;border-radius:.65rem;flex:1;font-size:.95rem}.seg button[aria-pressed=true]{background:var(--ink);color:var(--bg)}.btn{cursor:pointer;border:1.5px solid #0000;border-radius:999px;justify-content:center;align-items:center;min-height:3rem;padding:0 1.5rem;font-size:1rem;font-weight:600;text-decoration:none;transition:transform .12s,opacity .12s;display:inline-flex}.btn:active:not(:disabled){transform:scale(.97)}.btn:disabled{opacity:.4;cursor:default}.btn-primary{background:var(--ink);color:var(--bg)}.btn-ghost{border-color:var(--line);color:var(--ink);background:0 0}.btn-ghost:hover{border-color:var(--muted)}.btn-xl{min-height:3.75rem;padding:0 2.75rem;font-size:1.2rem}.link-btn{color:var(--muted);text-underline-offset:3px;cursor:pointer;background:0 0;border:none;font-size:.9rem;text-decoration:underline}.hero{padding:2.5rem 0 .5rem}.hero h1{max-width:44rem;margin:0 0 .75rem;font-size:clamp(2rem,5.2vw,3.1rem);font-weight:750}.hero-center{text-align:center;padding:5rem 0}.hero-center h1,.hero-center .lead{margin-left:auto;margin-right:auto}.lead{color:var(--soft);max-width:42rem;margin:0;font-size:1.12rem;line-height:1.55}.block{margin:3rem 0}.chips{flex-wrap:wrap;gap:.5rem;margin-bottom:.75rem;display:flex}.chips button{border:1.5px solid var(--line);cursor:pointer;background:0 0;border-radius:999px;min-height:2.6rem;padding:.5rem 1rem;font-size:.95rem}.chips button:hover{border-color:var(--muted)}.chips button[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}.chips .chip-easy{margin-left:auto}.chips .chip-easy[aria-pressed=true]{background:var(--ok);border-color:var(--ok);color:#fff}.cards{grid-template-columns:repeat(auto-fill,minmax(15.5rem,1fr));gap:.75rem;display:grid}.card-link{border:1.5px solid var(--line);border-radius:var(--radius);background:var(--surface);align-items:center;gap:.9rem;min-width:0;padding:.85rem 1rem;text-decoration:none;transition:border-color .15s,transform .15s;display:flex}.card-link:hover{border-color:var(--ink)}.card-link[data-done]{border-color:var(--ok)}.card-icon{background:var(--tile);border-radius:.8rem;flex:none;place-items:center;width:2.9rem;height:2.9rem;font-size:1.55rem;display:grid}.card-text{flex-direction:column;flex:1;min-width:0;display:flex}.card-name{font-weight:620}.card-sub{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.85rem;overflow:hidden}.card-meta{flex-direction:column;flex:none;align-items:flex-end;gap:.3rem;display:flex}.card-best{color:var(--accent);font-size:.8rem;font-weight:600}.lvl{gap:3px;display:flex}.lvl i{background:var(--line);border-radius:50%;width:.42rem;height:.42rem}.lvl[data-lvl="1"] i:nth-child(-n+1),.lvl[data-lvl="2"] i:nth-child(-n+2),.lvl[data-lvl="3"] i{background:var(--soft)}.today{grid-template-columns:repeat(auto-fill,minmax(17rem,1fr));gap:.65rem;margin:1rem 0 0;padding:0;list-style:none;display:grid}.today li{align-items:center;gap:.6rem;min-width:0;display:flex}.today li>a{flex:1}.today-n{border:1.5px solid var(--line);width:1.9rem;height:1.9rem;color:var(--soft);border-radius:50%;flex:none;place-items:center;font-size:.85rem;font-weight:600;display:grid}.today-n[data-done]{background:var(--ok);border-color:var(--ok);color:#fff}.today-skel{border-radius:var(--radius);background:var(--tile);height:4.6rem}.why{color:var(--soft);max-width:46rem;padding-left:1.2rem;line-height:1.6}.why li{margin:.35rem 0}.cat-links{grid-template-columns:repeat(auto-fill,minmax(16rem,1fr));gap:.75rem;margin-top:1.5rem;display:grid}.cat-link{border-radius:var(--radius);background:var(--tile);flex-direction:column;gap:.3rem;padding:1rem 1.1rem;text-decoration:none;display:flex}.cat-link:hover{background:var(--tile-strong)}.cat-link span{color:var(--soft);font-size:.9rem}.cat-links-row{margin-top:2.5rem}.stats{grid-template-columns:repeat(3,1fr);gap:.75rem;margin:1.5rem 0;display:grid}.stats div{background:var(--tile);border-radius:var(--radius);flex-direction:column;padding:1rem;display:flex}.stats b{font-size:2rem;line-height:1.1}.stats span{color:var(--soft);font-size:.9rem}.crumbs{color:var(--muted);gap:.5rem;margin:1rem 0 .25rem;font-size:.9rem;display:flex}.crumbs a{color:var(--soft);text-decoration:none}.crumbs a:hover{text-decoration:underline}.game-head h1{margin:.25rem 0 .5rem;font-size:clamp(1.6rem,4vw,2.35rem)}.tags{flex-wrap:wrap;gap:.4rem;margin:.75rem 0 0;display:flex}.tag{background:var(--tile);color:var(--soft);border-radius:999px;padding:.2rem .65rem;font-size:.8rem}.tag-soft{background:var(--ok-soft);color:var(--ok)}.prose h2{margin-top:1.75rem}.prose p{color:var(--soft);max-width:44rem;line-height:1.65}.shell{background:var(--surface);border:1.5px solid var(--line);border-radius:1.5rem;flex-direction:column;max-width:46rem;min-height:31rem;margin:1.5rem auto;padding:clamp(.9rem,3vw,1.75rem);display:flex}.shell-intro,.shell-result{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:1rem;display:flex}.shell-icon{font-size:4rem;line-height:1}.shell-how{max-width:30rem;color:var(--soft);margin:0;font-size:1.08rem;line-height:1.55}.shell-best{color:var(--muted);margin:0}.shell-kicker{text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin:0;font-size:.8rem;font-weight:700}.shell-score{flex-direction:column;margin:0;display:flex}.shell-score span{color:var(--soft)}.shell-score b{font-variant-numeric:tabular-nums;font-size:4.25rem;line-height:1.05}.shell-detail{color:var(--soft);margin:0}.shell-play{flex-direction:column;flex:1;align-items:center;width:100%;display:flex}.shell-foot{margin-top:auto;padding-top:1.25rem}.engine-loading{min-height:22rem}.hud{width:100%;color:var(--soft);justify-content:space-between;align-items:center;gap:1rem;min-height:1.6rem;font-size:.92rem;display:flex}.hud b{color:var(--ink);font-variant-numeric:tabular-nums}.hud-lives{gap:.3rem;display:flex}.hud-lives i{border:1.5px solid var(--muted);border-radius:50%;width:.7rem;height:.7rem}.hud-lives i.on{background:var(--accent);border-color:var(--accent)}.prompt{text-align:center;min-height:1.6em;margin:.6rem 0 1rem;font-size:1.15rem;font-weight:620}.prompt[data-tone=ok]{color:var(--ok)}.prompt[data-tone=bad]{color:var(--bad)}.actions{flex-wrap:wrap;justify-content:center;gap:.75rem;margin-top:1.25rem;display:flex}.study{flex-direction:column;align-items:center;gap:.85rem;width:100%;margin-top:1.25rem;display:flex}.study-bar{background:var(--tile);border-radius:3px;width:100%;max-width:20rem;height:6px;overflow:hidden}.study-bar i{background:var(--accent);transform-origin:0;height:100%;animation:linear forwards shrink;display:block}@keyframes shrink{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.board{grid-template-columns:repeat(var(--cols), minmax(0, 1fr));gap:clamp(.35rem,1.4vw,.65rem);width:100%;margin:0 auto;display:grid}.board+.board,.board-choices{margin-top:1.25rem}.tile{aspect-ratio:1;background:var(--tile);cursor:pointer;border:2px solid #0000;border-radius:.9rem;place-items:center;min-width:0;padding:0;transition:transform .12s,background-color .2s,border-color .2s;display:grid;overflow:hidden;container-type:inline-size}.tile:disabled{cursor:default}.tile:not(:disabled):hover{border-color:var(--line)}.tile:not(:disabled):active{transform:scale(.96)}.tile[data-state=hidden]{background-color:var(--accent);background-image:radial-gradient(circle,#ffffff38 0 14%,#0000 15%)}.tile[data-state=ok]{background:var(--ok-soft);border-color:var(--ok)}.tile[data-state=bad]{background:var(--bad-soft);border-color:var(--bad)}.tile[data-state=lit],.tile[data-state=picked]{background:var(--accent-soft);border-color:var(--accent)}.tile[data-state=empty]{border:2px dashed var(--line);background:0 0}.tile-target[data-state=empty]:not(:disabled){border-color:var(--accent)}.card[data-state=ok]{opacity:.55;border-color:#0000}.card{animation:.25s ease-out both deal}@keyframes deal{0%{opacity:0;transform:scale(.92)}}.board-words .tile{aspect-ratio:auto;min-height:3.5rem;padding:.4rem .5rem}.board-words .g-text,.board-words .g-word{font-size:1.05rem;font-weight:560}.board-chimp .tile[data-state=empty]{border-color:#0000}.g-emoji{font-size:58cqw;line-height:1}.g-text{font-variant-numeric:tabular-nums;font-size:42cqw;font-weight:650;line-height:1}.g-text[data-len="3"]{font-size:32cqw}.g-word{text-align:center;overflow-wrap:anywhere;padding:0 6%;font-size:15cqw;font-weight:600;line-height:1.15}.g-svg{width:72%;height:72%}.g-swatch{border-radius:22%;width:74%;height:74%;box-shadow:inset 0 0 0 1px #0000001f}.stage{place-items:center;width:100%;height:11rem;display:grid}.stage-sm{height:7rem}.stage .g-emoji{font-size:7rem}.stage-sm .g-emoji{font-size:4.5rem}.stage .g-text{font-size:5.5rem}.stage-sm .g-text{font-size:3.5rem}.stage .g-long{letter-spacing:.05em;font-size:clamp(2rem,9vw,3.75rem)}.stage .g-word{font-size:2.4rem}.stage .g-svg{width:8rem;height:8rem}.stage-sm .g-svg{width:5.5rem;height:5.5rem}.stage .g-swatch{width:8rem;height:8rem}.stage-sm .g-swatch{width:5rem;height:5rem}.g-swatch-lg{width:10rem!important;height:10rem!important}.stage-card{background:var(--tile);border:3px solid #0000;border-radius:1.2rem;place-items:center;width:9.5rem;height:9.5rem;transition:border-color .15s;display:grid}.stage-card[data-flash=ok]{border-color:var(--ok)}.stage-card[data-flash=bad]{border-color:var(--bad)}.stage-card .g-text{font-size:4.5rem}.stage-card .g-word{font-size:1.5rem}.stage-card .g-svg{width:6.5rem;height:6.5rem}.pad{aspect-ratio:1;background:var(--pad);opacity:.32;cursor:pointer;border:none;border-radius:1.1rem;transition:opacity 80ms,transform 80ms}.pad:disabled{cursor:default}.pad[data-state=lit]{opacity:1;box-shadow:0 0 0 5px color-mix(in srgb, var(--pad) 30%, transparent);transform:scale(1.03)}.piano{grid-template-columns:repeat(var(--keys), 1fr);gap:.35rem;width:100%;max-width:36rem;height:13rem;display:grid}.piano-key{background:var(--surface);border:2px solid var(--line);cursor:pointer;border-radius:0 0 .75rem .75rem;transition:background-color 80ms}.piano-key[data-state=lit]{background:var(--accent);border-color:var(--accent)}.scatter{aspect-ratio:1;width:100%;max-width:26rem;margin:0 auto;position:relative}.sblock{aspect-ratio:1;background:var(--tile-strong);cursor:pointer;border:none;border-radius:.7rem;width:17%;transition:background-color 80ms;position:absolute}.sblock[data-state=lit]{background:var(--accent)}.cell{aspect-ratio:1;background:var(--tile);cursor:pointer;border:none;border-radius:.6rem;transition:background-color .12s;display:block}.cell:disabled{cursor:default}.cell[data-state=lit]{background:var(--accent)}.cell[data-state=ok]{background:var(--ok)}.cell[data-state=bad]{background:var(--bad)}.dpad{grid-template-rows:repeat(3,4.25rem);grid-template-columns:repeat(3,4.25rem);justify-content:center;gap:.4rem;display:grid}.dpad [data-dir="0"]{grid-area:1/2}.dpad [data-dir="1"]{grid-area:2/3}.dpad [data-dir="2"]{grid-area:3/2}.dpad [data-dir="3"]{grid-area:2/1}.dpad .key{height:auto;font-size:1.9rem}.dpad .key[data-state=lit]{background:var(--accent);color:#fff}.keypad-wrap{width:100%;max-width:20rem}.entry{text-align:center;letter-spacing:.06em;border-bottom:2px solid var(--line);font-variant-numeric:tabular-nums;min-height:3.3rem;margin-bottom:.9rem;font-size:2rem;font-weight:650;display:block}.keypad{grid-template-columns:repeat(3,1fr);gap:.5rem;display:grid}.key{background:var(--tile);cursor:pointer;border:none;border-radius:.85rem;height:3.7rem;font-size:1.5rem;font-weight:600;transition:transform 80ms,background-color .1s}.key:active:not(:disabled){background:var(--tile-strong);transform:scale(.96)}.key:disabled{opacity:.45;cursor:default}.key-fn{font-size:1.3rem}.key-ok{background:var(--ink);color:var(--bg);grid-column:span 3;font-size:1rem}.key-ok:active:not(:disabled){background:var(--ink)}.strip{flex-wrap:wrap;justify-content:center;gap:.4rem;margin:0 0 1rem;display:flex}.chip{background:var(--tile);border:2px solid #0000;border-radius:.65rem;place-items:center;min-width:3rem;height:3rem;padding:0;font-size:1rem;display:grid}.chip .g-emoji{font-size:1.75rem}.chip .g-text{font-size:1.3rem}.chip .g-word{padding:0 .5rem;font-size:.85rem}.chip .g-svg,.chip .g-swatch{width:2rem;height:2rem}.chip[data-empty=true]{border:2px dashed var(--line);background:0 0}.chip-del{cursor:pointer;color:var(--soft);border-color:var(--line);background:0 0}.chip-del:disabled{opacity:.4;cursor:default}.chip-lg{min-width:3.6rem;height:3.6rem}.chip-lg .g-emoji{font-size:2.2rem}.chip-lg .g-swatch{width:2.4rem;height:2.4rem}.chip[data-held=true]{border-color:var(--accent);background:var(--accent-soft)}button.chip{cursor:pointer}.tray{flex-wrap:wrap;justify-content:center;gap:.5rem;margin-top:1.25rem;display:flex}.field{aspect-ratio:1;background:var(--tile);border-radius:1rem;width:100%;max-width:26rem;position:relative}.field-item{aspect-ratio:1;place-items:center;width:16%;display:grid;position:absolute;container-type:inline-size}.field-item .g-emoji{font-size:82cqw}.field-item .g-svg{width:92%;height:92%}.cups{width:100%;max-width:30rem;height:10rem;margin:1.5rem auto 0;position:relative}.cup{width:calc(100% / var(--n) - .8rem);bottom:0;left:calc(var(--slot) * 100% / var(--n) + .4rem);height:100%;transition:left var(--speed) ease-in-out;cursor:pointer;background:0 0;border:none;padding:0;position:absolute}.cup:disabled{cursor:default}.cup-body{background:var(--soft);clip-path:polygon(16% 0,84% 0,100% 100%,0 100%);z-index:2;border-radius:.4rem;height:70%;transition:transform .35s;position:absolute;inset:auto 0 0}.cup:not(:disabled):hover .cup-body{background:var(--ink)}.cup[data-lifted=true] .cup-body{transform:translateY(-48%)}.cup-ball{background:var(--accent);z-index:1;border-radius:50%;width:1.8rem;height:1.8rem;margin-left:-.9rem;position:absolute;bottom:5%;left:50%}.pairs-list{gap:.6rem;margin:0;padding:0;list-style:none;display:grid}.pairs-list li{align-items:center;gap:.9rem;display:flex}.pairs-arrow{color:var(--muted)}.pairs-answer,.pairs-answer .g-text,.pairs-answer .g-word{padding:0;font-size:1.35rem;font-weight:650}.code-key{gap:.6rem;width:100%;max-width:30rem;display:grid}.code-cell{background:var(--tile);border-radius:.85rem;flex-direction:column;align-items:center;gap:.3rem;padding:.7rem .4rem;display:flex}.code-sym{place-items:center;width:3rem;height:3rem;display:grid}.code-sym .g-svg{width:100%;height:100%}.code-cell b{font-size:1.4rem}.calendar{grid-template-columns:repeat(7,minmax(0,1fr));gap:.35rem;width:100%;max-width:34rem;display:grid}.day{background:var(--tile);cursor:pointer;border:2px solid #0000;border-radius:.65rem;flex-direction:column;justify-content:flex-start;align-items:center;gap:.25rem;min-width:0;min-height:4.6rem;padding:.35rem .1rem;display:flex}.day:disabled{cursor:default}.calendar-month .day{min-height:3.5rem}.day-label{color:var(--soft);text-transform:capitalize;font-size:.8rem}.day-icon{font-size:1.6rem;line-height:1}.calendar-month .day-icon{font-size:1.3rem}.day[data-state=ok]{border-color:var(--ok);background:var(--ok-soft)}.day[data-state=bad]{border-color:var(--bad);background:var(--bad-soft)}.spot-field{aspect-ratio:1;background:var(--tile);border-radius:1rem;width:100%;max-width:26rem;position:relative}.spot-field[data-active=true]{cursor:crosshair;outline:2px dashed var(--line);outline-offset:4px}.spot-dot,.spot-tap{pointer-events:none;border-radius:50%;width:1.7rem;height:1.7rem;margin:-.85rem 0 0 -.85rem;position:absolute}.spot-dot{background:var(--accent)}.spot-tap{border:3px solid var(--ink)}@media (max-width:560px){.top{gap:.5rem}.top-nav{display:none}.shell{border-radius:1.1rem;min-height:28rem;margin:1rem -.25rem}.chips .chip-easy{margin-left:0}.stage{height:9rem}.stage .g-emoji{font-size:5.5rem}.cards,.today{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){:not(.cup):not(.study-bar>i),:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}