/* Play section: hub, game cards, game chrome and shared widgets. Colours come from the site-wide
   colour code (data-c on any ancestor sets --c, --c-soft and --c-ink). */
:root{
  --c-typing:#0B6E99;--c-typing-soft:#DDF0F8;--c-typing-ink:#074A68;
  --c-threed:#3B3FC9;--c-threed-soft:#E6E7FA;--c-threed-ink:#262A8F;
  --c-physics:#C0275A;--c-physics-soft:#FBE3EB;--c-physics-ink:#8A1740;
  --c-music:#8A6D00;--c-music-soft:#FBF0C6;--c-music-ink:#5C4900;
  --c-puzzle:#4F7A0B;--c-puzzle-soft:#E8F2D3;--c-puzzle-ink:#355305;
}
[data-c=typing]{--c:var(--c-typing);--c-soft:var(--c-typing-soft);--c-ink:var(--c-typing-ink)}
[data-c=threed]{--c:var(--c-threed);--c-soft:var(--c-threed-soft);--c-ink:var(--c-threed-ink)}
[data-c=physics]{--c:var(--c-physics);--c-soft:var(--c-physics-soft);--c-ink:var(--c-physics-ink)}
[data-c=music]{--c:var(--c-music);--c-soft:var(--c-music-soft);--c-ink:var(--c-music-ink)}
[data-c=puzzle]{--c:var(--c-puzzle);--c-soft:var(--c-puzzle-soft);--c-ink:var(--c-puzzle-ink)}
.w-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- game cards ---------- */
.gcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.gcard{--rx:0deg;--ry:0deg;--mx:50%;--my:30%;position:relative;display:flex;flex-direction:column;border-radius:24px;background:var(--card);border:1.5px solid var(--line);overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .25s;transform-style:preserve-3d;will-change:transform}
.gcard:hover,.gcard:focus-visible{transform:perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(-6px);border-color:var(--c);box-shadow:0 28px 46px -26px var(--c),0 8px 18px -12px rgba(0,0,0,.18)}
.gcard.tilt{transition:transform .08s linear,box-shadow .35s,border-color .25s}
.gcard-art{position:relative;display:grid;place-items:center;height:140px;overflow:hidden;perspective:500px;background:radial-gradient(120% 90% at 30% 0%,color-mix(in srgb,var(--c) 60%,#fff),transparent 60%),linear-gradient(150deg,var(--c),color-mix(in srgb,var(--c) 50%,#14123a))}
.gcard-art::before{content:"";position:absolute;left:-30%;right:-30%;bottom:-48%;height:90%;background:repeating-linear-gradient(90deg,rgba(255,255,255,.22) 0 1px,transparent 1px 30px),repeating-linear-gradient(0deg,rgba(255,255,255,.22) 0 1px,transparent 1px 30px);transform:rotateX(64deg);transform-origin:50% 0;-webkit-mask-image:linear-gradient(transparent,#000 40%);mask-image:linear-gradient(transparent,#000 40%)}
.gcard:hover .gcard-art::before{animation:gc-floor 1.6s linear infinite}
@keyframes gc-floor{to{background-position:0 30px,0 30px}}
.gcard-art i{position:absolute;border-radius:50%;background:rgba(255,255,255,.2);animation:gc-float 7s ease-in-out infinite}
.gcard-art .d1{width:90px;height:90px;left:-18px;top:-26px}.gcard-art .d2{width:56px;height:56px;right:12%;bottom:-14px;animation-delay:-2s;background:rgba(255,255,255,.16)}.gcard-art .d3{width:30px;height:30px;right:26%;top:14px;animation-delay:-4s}
.gcard-tile{position:relative;display:grid;place-items:center;width:84px;height:84px;border-radius:24px;background:linear-gradient(160deg,#fff,rgba(255,255,255,.78));box-shadow:0 9px 0 color-mix(in srgb,var(--c) 55%,#000),0 22px 30px -12px rgba(0,0,0,.5),inset 0 -3px 0 rgba(0,0,0,.06);transform:translateY(4px) rotateX(16deg);transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.gcard-ico{position:relative;font-size:48px;line-height:1;filter:drop-shadow(0 4px 6px rgba(0,0,0,.18));transition:transform .45s var(--ease)}
.gcard:hover .gcard-tile{transform:translateY(-8px) rotateX(0deg) scale(1.06);box-shadow:0 14px 0 color-mix(in srgb,var(--c) 55%,#000),0 30px 34px -12px rgba(0,0,0,.5)}
.gcard:hover .gcard-ico{transform:scale(1.08) rotate(-6deg)}
.gcard-glare{position:absolute;inset:0;background:radial-gradient(circle at var(--mx) var(--my),rgba(255,255,255,.42),transparent 48%);opacity:0;transition:opacity .3s;pointer-events:none}
.gcard.tilt .gcard-glare{opacity:1}
.gcard-tiers{position:absolute;left:10px;top:10px;display:flex;align-items:center;gap:4px;padding:4px 9px 4px 7px;border-radius:99px;background:rgba(10,10,40,.38);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:#fff;font:800 10.5px var(--sans);letter-spacing:.06em;text-transform:uppercase}
.gcard-tiers i{position:static;width:8px;height:8px;border-radius:50%;animation:none}.gcard-tiers i:nth-child(1){background:#5eead4}.gcard-tiers i:nth-child(2){background:#c4b5fd}.gcard-tiers i:nth-child(3){background:#fdba74;margin-right:3px}
.gcard.adv{border-color:color-mix(in srgb,var(--c) 35%,var(--line))}
.gcard.adv::after{content:"";position:absolute;inset:-1px;border-radius:24px;padding:1.5px;background:conic-gradient(from var(--ang,0deg),transparent 0 70%,var(--c),#ffd43b,transparent);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .3s;pointer-events:none;animation:frame-spin 4s linear infinite}
.gcard.adv:hover::after{opacity:1}
.gcard-path{display:flex;flex-wrap:wrap;gap:4px;align-items:center;margin-top:4px;font:700 12px var(--sans);color:var(--c-ink)}.gcard-path i{font-style:normal;opacity:.5}
.gcard-skills{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.gcard-skills span{padding:2px 8px;border-radius:99px;background:var(--c-soft);color:var(--c-ink);font-size:11.5px;font-weight:700}
.gcard-body{display:flex;flex-direction:column;gap:4px;padding:16px 18px 6px;flex:1}
.gcard-cat{font:800 10.5px var(--sans);letter-spacing:.11em;text-transform:uppercase;color:var(--c-ink)}
.gcard-new{margin-left:8px;padding:2px 7px;border-radius:99px;background:var(--c);color:#fff;font-style:normal;letter-spacing:.04em}
.gcard-name{font:500 22px/1.15 var(--serif);letter-spacing:-.01em}
.gcard-desc{font-size:14px;line-height:1.45;color:var(--ink-2)}
.gcard-go{margin:6px 18px 16px;align-self:flex-start;padding:7px 14px;border-radius:99px;background:var(--c-soft);color:var(--c-ink);font-weight:800;font-size:13px;transition:background .2s,color .2s}
.gcard:hover .gcard-go{background:var(--c);color:#fff}
@keyframes gc-float{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ---------- hub ---------- */
.play-hero{position:relative;overflow:hidden}
.play-hero::before,.play-hero::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;pointer-events:none;animation:blob 14s ease-in-out infinite}
.play-hero::before{width:380px;height:380px;right:-60px;top:-120px;background:var(--c-soft,#fbe8e2)}
.play-hero::after{width:300px;height:300px;left:30%;bottom:-170px;background:color-mix(in srgb,var(--c,#E58A2C) 25%,#fff);animation-delay:-5s}
@keyframes blob{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-30px,24px) scale(1.12)}}
.play-hero .wrap{position:relative;z-index:1}
.play-search{margin-top:24px;display:grid;gap:14px}
.play-search input{width:100%;max-width:560px;padding:15px 20px;border-radius:99px;border:2px solid var(--line-2);background:#fff;font:600 16px var(--sans)}
.play-search input:focus{outline:0;border-color:var(--c-ink,#8F2F18);box-shadow:0 0 0 4px var(--c-soft,#fbe8e2)}
.play-chips{display:flex;flex-wrap:wrap;gap:8px}
.play-chips button{padding:9px 16px;border-radius:99px;border:2px solid var(--line-2);background:#fff;font:700 13.5px var(--sans);cursor:pointer;color:var(--ink-2);transition:background .15s,border-color .15s,color .15s,transform .15s}
.play-chips button:hover{border-color:var(--c,var(--ink));transform:translateY(-2px)}
.play-chips button.on{background:var(--c-ink,#1D2856);border-color:var(--c-ink,#1D2856);color:#fff}
.play-top{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:18px;align-items:stretch}
.play-player{padding:22px 24px;border-radius:26px;background:linear-gradient(140deg,#1D2856,#2B3B7C);color:#fff}
.play-player .eyebrow{color:#FFD7A8;margin:0 0 8px}
.pp-row{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.pp-ring{--p:0;position:relative;width:84px;height:84px;border-radius:50%;background:conic-gradient(#FFB86B calc(var(--p)*1%),rgba(255,255,255,.18) 0);display:grid;place-items:center;flex:none}
.pp-ring::before{content:"";position:absolute;inset:8px;border-radius:50%;background:#1D2856}
.pp-ring b{position:relative;font:500 28px var(--serif)}
.pp-meta{display:grid;gap:3px;font-size:14px}.pp-meta b{font-size:18px}.pp-meta small{color:#CDD3EE}
.pp-badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.pp-badges span{padding:5px 10px;border-radius:99px;background:rgba(255,255,255,.14);font-size:12.5px;font-weight:700}
.pp-empty{margin:0;color:#DCE2F7}
.play-daily{display:flex;align-items:center;gap:18px;padding:22px 24px;border-radius:26px;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#fff));color:#fff;text-decoration:none;transition:transform .25s var(--ease),box-shadow .25s}
.play-daily:hover{transform:translateY(-4px);box-shadow:0 22px 40px -24px var(--c)}
.pd-ico{font-size:54px;line-height:1;filter:drop-shadow(0 6px 10px rgba(0,0,0,.25))}
.play-daily small{display:block;font:800 10.5px var(--sans);letter-spacing:.12em;text-transform:uppercase;opacity:.9}
.play-daily b{display:block;font:500 28px/1.1 var(--serif);margin:3px 0}
.play-daily>span:nth-child(2) span{font-size:14px;opacity:.95}
.pd-go{margin-left:auto;padding:9px 16px;border-radius:99px;background:#fff;color:var(--c-ink);font-weight:800;white-space:nowrap}
.play-none{padding:30px 0;text-align:center;color:var(--mute)}
.play-cat[hidden],.gcard[hidden]{display:none}

/* ---------- game page ---------- */
.play-facts{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0;padding:0}
.play-facts li{padding:6px 12px;border-radius:99px;background:var(--c-soft);color:var(--c-ink);font-weight:700;font-size:13px}
.play-stage-wrap{margin-top:22px}
.play-frame{position:relative;min-height:320px;border-radius:30px;background:var(--card);border:2px solid var(--c);box-shadow:0 30px 60px -40px var(--c)}
.play-loading{display:grid;place-items:center;gap:6px;min-height:320px;color:var(--mute);font-weight:700}
.play-error{padding:40px 24px;text-align:center}
.play-cols{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.9fr);gap:clamp(20px,4vw,48px);align-items:start}
.play-learn{padding:24px;border-radius:24px;background:var(--c-soft);border:1.5px solid var(--c)}
.play-learn h2{font:500 26px var(--serif);margin:0 0 10px;color:var(--c-ink)}.play-learn p,.play-learn li{color:#2f2a25;line-height:1.55}
@media(max-width:900px){.play-top,.play-cols{grid-template-columns:1fr}}

/* ---------- game chrome ---------- */
.gs{position:relative;display:flex;flex-direction:column;border-radius:28px;overflow:hidden;background:var(--card);animation:game-arrive .52s var(--ease, cubic-bezier(.2,.75,.25,1)) both}
.gs:fullscreen{border-radius:0;overflow:auto;background:var(--paper)}
.gs-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:12px 16px;background:var(--c-ink,#1D2856);color:#fff}
.gs-title b{font:500 20px var(--serif)}
.gs-stats{display:flex;gap:10px;flex-wrap:wrap;margin-left:auto}
.gs-stat{display:grid;min-width:62px;padding:5px 12px;border-radius:14px;background:rgba(255,255,255,.14);text-align:center}
.gs-stat small{font:700 9.5px var(--sans);letter-spacing:.1em;text-transform:uppercase;opacity:.8}.gs-stat b{font:600 19px var(--sans);font-variant-numeric:tabular-nums}
.gs-btns{display:flex;gap:6px}
.gs-btn{width:38px;height:38px;border-radius:12px;border:0;background:rgba(255,255,255,.16);color:#fff;font:700 16px var(--sans);cursor:pointer;transition:background .15s}
.gs-btn:hover{background:rgba(255,255,255,.3)}
.gs-stage{padding:clamp(14px,3vw,26px);display:grid;gap:16px;background:var(--card);animation:stage-arrive .58s .06s var(--ease, cubic-bezier(.2,.75,.25,1)) both}
.gs-foot{padding:0 clamp(14px,3vw,26px) 18px;display:flex;gap:14px;flex-wrap:wrap;align-items:center;background:var(--card)}
.gs-toasts{position:absolute;left:0;right:0;bottom:16px;display:grid;justify-items:center;gap:8px;pointer-events:none;z-index:20}
.gs-toast{padding:9px 16px;border-radius:99px;background:rgba(15,21,51,.92);color:#fff;font-weight:700;font-size:14px;animation:toast-in .25s var(--ease)}
.gs-toast.out{opacity:0;transition:opacity .35s}
@keyframes toast-in{from{opacity:0;transform:translateY(10px)}}
.gs-modal{position:fixed;inset:0;z-index:10001;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top)) 16px max(16px,env(safe-area-inset-bottom));background:rgba(15,21,51,.55);backdrop-filter:blur(3px);overscroll-behavior:contain;animation:fade-in .2s}
.gs-modal-card{width:min(520px,100%);max-height:min(92vh,calc(100dvh - 32px));overflow:auto;overscroll-behavior:contain;padding:28px;border-radius:26px;background:#fff;box-shadow:0 40px 80px -30px rgba(0,0,0,.5);animation:pop-in .3s var(--ease)}
.gs-modal-card h2{font:500 32px/1.1 var(--serif);margin:0 0 12px}
.gs-modal-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.gs-msg{margin:0 0 10px;font-size:16px}
.gs-sum{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}.gs-sum div{padding:10px 12px;border-radius:14px;background:var(--c-soft,#faf5ea)}.gs-sum dt{font:700 11px var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--c-ink,#6b6153)}.gs-sum dd{margin:2px 0 0;font:600 20px var(--sans)}
.gs-xp{margin:12px 0 0;font-size:16px}.gs-xp small{display:block;color:var(--mute);margin-top:2px}.gs-best{padding:2px 9px;border-radius:99px;background:#FFE7B8;color:#6F470A;font-weight:800;font-size:12.5px}
.gs-badges{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:6px}.gs-badges li{padding:8px 12px;border-radius:12px;background:#FFF4DC}.gs-badges span{margin-right:6px}.gs-badges small{color:var(--mute)}
@keyframes fade-in{from{opacity:0}}@keyframes pop-in{from{opacity:0;transform:translateY(14px) scale(.96)}}
@keyframes game-arrive{from{opacity:0;transform:translateY(16px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes stage-arrive{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.fx-pop{position:absolute;z-index:15;pointer-events:none;font:800 22px var(--sans);color:var(--c,#0B6E99);text-shadow:0 2px 0 #fff;animation:pop-up 1.1s ease-out forwards}
@keyframes pop-up{from{opacity:1;transform:translate(-50%,0) scale(.8)}to{opacity:0;transform:translate(-50%,-60px) scale(1.2)}}
.fx-shake{animation:shake .4s}@keyframes shake{20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}
.fx-flash-ok{animation:flash-ok .6s}.fx-flash-no{animation:flash-no .6s}
@keyframes flash-ok{from{background-color:#cdeed9}}@keyframes flash-no{from{background-color:#f8d1cd}}

/* ---------- typing ---------- */
.tt-opts{display:flex;flex-wrap:wrap;gap:12px 22px;align-items:flex-end}
.tt-group{display:grid;gap:5px}.tt-group small{font:800 10px var(--sans);letter-spacing:.11em;text-transform:uppercase;color:var(--c-ink)}
.tt-chips{display:flex;gap:6px;flex-wrap:wrap}
.tt-chip{padding:7px 13px;border-radius:99px;border:1.5px solid var(--line-2);background:#fff;font:700 13px var(--sans);cursor:pointer;color:var(--ink-2)}
.tt-chip.on{background:var(--c);border-color:var(--c);color:#fff}
.tt-daily{margin:0;padding:6px 12px;border-radius:99px;background:#FFF1D0;font-weight:700;font-size:13px}
.tt-wrap{position:relative}
.tt-view{position:relative;height:calc(1.85em*3 + 28px);overflow:hidden;padding:14px 18px;border-radius:20px;background:var(--c-soft);border:2px solid transparent;font:500 clamp(19px,2.3vw,26px)/1.85 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#7a7266;cursor:text;transition:border-color .2s}
.tt-view.focus{border-color:var(--c)}
.tt-text{white-space:pre-wrap;word-break:break-word}
.tt-ch{position:relative;border-radius:3px}
.tt-ch.ok{color:var(--c-ink)}.tt-ch.bad{color:#B3261E;background:#f9d9d5}.tt-ch.cur{background:rgba(255,255,255,.7);box-shadow:inset 3px 0 0 var(--c);animation:caret 1s steps(2) infinite}
.tt-ch.nl{opacity:.5}
@keyframes caret{50%{box-shadow:inset 3px 0 0 transparent}}
.tt-hint{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);padding:6px 16px;border-radius:99px;background:var(--c);color:#fff;font:800 13px var(--sans);pointer-events:none;box-shadow:0 8px 16px -8px var(--c);animation:hint-bob 2s ease-in-out infinite}@keyframes hint-bob{50%{transform:translate(-50%,-3px)}}
.tt-input{position:absolute;inset:0;width:100%;height:100%;opacity:0;resize:none;border:0;cursor:text;z-index:2}
.tt-best{margin:0;color:var(--mute);font-weight:700}
.tt-toggles{display:flex;gap:16px;flex-wrap:wrap;align-items:center;font-weight:600;font-size:14px}
.tt-result{display:grid;gap:10px}.tt-level{margin:0;font-weight:800;color:var(--c-ink)}.tt-weak,.tt-hintline{margin:0;font-size:14px}
.tt-weak kbd{margin-right:5px}

/* ---------- on-screen keyboard ---------- */
.kb{display:grid;gap:6px;justify-items:center;user-select:none}
.kb-row{display:flex;gap:6px;justify-content:center}
.kb-r1{margin-left:22px}.kb-r2{margin-left:44px}.kb-r3{margin-left:-4px}
.kb-key{display:grid;place-items:center;min-width:clamp(24px,4.1vw,42px);height:clamp(28px,4.4vw,44px);padding:0 6px;border-radius:9px;background:#fff;border:1.5px solid var(--line-2);font:700 clamp(11px,1.5vw,15px) var(--sans);color:var(--ink-2);text-transform:uppercase;transition:transform .08s,background .12s}
.kb-wide{min-width:clamp(46px,7.5vw,80px);font-size:11px}.kb-space{min-width:clamp(180px,38vw,380px)}
.kb:not(.kb-plain) .f1{background:#FDE0E0}.kb:not(.kb-plain) .f2{background:#FDEBD3}.kb:not(.kb-plain) .f3{background:#FBF4C9}.kb:not(.kb-plain) .f4{background:#DDF3DC}
.kb:not(.kb-plain) .f5{background:#D5EEF6}.kb:not(.kb-plain) .f6{background:#DDE3FA}.kb:not(.kb-plain) .f7{background:#EBDDF8}.kb:not(.kb-plain) .f8{background:#F9DDEB}.kb:not(.kb-plain) .f9{background:#E8E4DC}
.kb-key.next{background:var(--c)!important;border-color:var(--c);color:#fff;transform:translateY(-3px) scale(1.06);box-shadow:0 8px 14px -8px var(--c)}
.kb-key.ok{background:#8fdca8!important}.kb-key.bad{background:#f19a93!important}

@media(prefers-reduced-motion:reduce){.gcard,.gcard-ico,.play-daily,.gcard-art i,.play-hero::before,.play-hero::after,.gs,.gs-stage,.gs-toast,.gs-modal,.gs-modal-card,.tt-ch.cur{animation:none;transition:none}}
@media(max-width:560px){.gs-stats{margin-left:0;width:100%}.gs-title{flex:1}.kb-key{min-width:22px;height:30px;padding:0 3px}}

/* ---------- typing lessons, falling words, race, code typing ---------- */
.tl-grid{display:grid;grid-template-columns:minmax(220px,300px) 1fr;gap:18px;align-items:start}
.tl-list{display:grid;gap:6px;max-height:520px;overflow:auto;padding-right:4px}
.tl-item{display:flex;gap:10px;align-items:center;padding:9px 12px;border-radius:14px;border:1.5px solid var(--line-2);background:#fff;cursor:pointer;text-align:left;font:inherit}
.tl-item.on{border-color:var(--c);background:var(--c-soft)}.tl-item.lock{opacity:.55;cursor:not-allowed}
.tl-n{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--c);color:#fff;font-weight:800;flex:none}
.tl-item.lock .tl-n{background:var(--line-2)}
.tl-t{display:grid}.tl-t b{font-size:14px}.tl-t small{color:#C28A00;letter-spacing:2px}
.tl-practice{display:grid;gap:12px;min-width:0}
.tl-info h3{font:500 24px var(--serif);margin:0}.tl-info p{margin:4px 0}.tl-keys kbd{margin-right:4px}
.tl-meter{height:10px;border-radius:99px;background:var(--c-soft);overflow:hidden}.tl-meter i{display:block;height:100%;width:0;background:var(--c);transition:width .15s}
@media(max-width:820px){.tl-grid{grid-template-columns:1fr}.tl-list{grid-auto-flow:column;grid-auto-columns:minmax(210px,1fr);overflow-x:auto;max-height:none;padding-bottom:6px}}
.fw-wrap{position:relative;border-radius:20px;overflow:hidden;background:#0F1B3D}
.fw-canvas{display:block;width:100%;touch-action:manipulation}
.fw-input{position:absolute;left:0;bottom:0;width:100%;height:44px;opacity:0;border:0}
.fw-ui{position:absolute;inset:0;display:grid;place-items:center;background:rgba(8,12,34,.55)}.fw-ui[hidden]{display:none}
.fw-menu{display:grid;gap:12px;justify-items:center;padding:28px;border-radius:24px;background:#fff;text-align:center;max-width:90%}
.fw-menu h3{font:500 32px var(--serif);margin:0}.fw-menu p{margin:0}
.tr-lanes{display:grid;gap:8px}
.tr-lane{display:grid;grid-template-columns:72px 1fr;gap:10px;align-items:center}
.tr-name{font-weight:800;font-size:13px;color:var(--c-ink)}
.tr-track{position:relative;height:44px;border-radius:12px;background:repeating-linear-gradient(90deg,var(--c-soft) 0 24px,#fff 24px 48px);border:1.5px solid var(--line-2);overflow:hidden}
.tr-lane.me .tr-track{border-color:var(--c)}
.tr-car{position:absolute;left:4px;top:3px;font-size:30px;line-height:1.2;transition:left .18s linear}
.tr-flag{position:absolute;right:6px;top:7px;font-size:24px}
.tr-lights{display:grid;place-items:center;height:76px;font:600 50px var(--serif);color:var(--c-ink)}.tr-lights.go{color:#17753A}
.tr-menu{display:grid;gap:12px;justify-items:start}.tr-menu h3{font:500 28px var(--serif);margin:0}
.tr-body,.cd-body{display:grid;gap:14px}

/* ---------- shared start menu ---------- */
.gm-menu{display:grid;gap:14px;justify-items:center;padding:clamp(18px,4vw,30px);border-radius:24px;background:#fff;text-align:center;max-width:min(560px,94%);margin-inline:auto;box-shadow:0 10px 40px rgba(20,18,58,.12)}
.gm-menu h3{font:500 clamp(26px,5vw,34px) var(--serif);margin:0;color:var(--c-ink,inherit)}.gm-text{margin:0;color:var(--ink-2)}
.gm-menu .tt-group{justify-items:center}.gm-menu .tt-chips{justify-content:center}
.gs-stage>.gm-menu{justify-self:center}
.fw-ui .gm-menu{max-height:96%;overflow:auto}

/* Starter labs and cross-category games */
.ng{display:grid;gap:14px;max-width:900px;margin-inline:auto;min-width:0}
.ng-title{font:500 clamp(24px,4vw,34px)/1.1 var(--serif);margin:0;color:var(--c-ink)}
.ng-sub{font-size:16px;margin:4px 0 0}
.ng-copy,.ng-note{margin:0;color:var(--ink-2);line-height:1.55}.ng-note{min-height:1.5em;color:var(--c-ink);font-weight:700}
.ng-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.ng-between{justify-content:space-between;align-items:start}
.ng-code{display:block;width:100%;min-height:160px;resize:vertical;border:1px solid var(--line-2);border-radius:14px;padding:14px;background:#111a31;color:#edf5ff;font:14px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;tab-size:4}
.ng-output{margin:0;min-height:72px;max-height:240px;overflow:auto;border-radius:12px;background:#101a30;color:#eaf7ee;padding:14px;white-space:pre-wrap;font:14px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}
.ng-grid{display:grid;gap:5px;width:min(100%,560px);margin:auto;padding:12px;border-radius:18px;background:#dce8ef}
.ng-cell{display:grid;place-items:center;aspect-ratio:1;border-radius:9px;background:#fff;font-size:clamp(17px,4vw,25px);font-weight:800}.ng-cell.wall{background:#415064}
.ng-canvas{display:block;width:100%;height:auto;border-radius:14px;background:#fff;box-shadow:inset 0 0 0 1px var(--line-2)}
.ng-editors{display:grid;grid-template-columns:1fr 1fr;gap:12px}.ng-editor-label{display:grid;gap:7px;font-weight:800;color:var(--c-ink)}.ng-css{min-height:190px}
.ng-preview{width:100%;height:240px;border:1px solid var(--line-2);border-radius:14px;background:#fff}
.ng-select{padding:9px 12px;border:1px solid var(--line-2);border-radius:10px;background:#fff;font:inherit}
.ng-bars{display:flex;align-items:end;justify-content:center;gap:clamp(4px,1vw,10px);min-height:160px;padding:18px 12px 0;border-bottom:2px solid var(--line-2);background:linear-gradient(#fff,#f3f7fa);border-radius:14px 14px 0 0}
.ng-bar{display:grid;align-content:end;justify-items:center;width:min(9vw,48px);min-width:25px;border-radius:8px 8px 0 0;background:#5875d8;color:#fff;font-size:11px;font-weight:800;padding-bottom:5px;transition:height .2s,background .2s}.ng-bar.active{background:#e36a47}
.ng-path{display:grid;width:min(100%,470px);margin:auto;gap:3px;padding:9px;background:#dfe9ee;border-radius:14px;touch-action:manipulation}
.ng-path-cell{aspect-ratio:1;border:0;border-radius:4px;background:#fff;color:#fff;padding:0;min-width:0;transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease}.ng-path-cell.start{background:#158266}.ng-path-cell.goal{background:#e3a51c}.ng-path-cell.wall{background:#344054}.ng-path-cell.path{background:#4f74dd;animation:path-land .24s ease both}.ng-path-cell.seen{background:#a9c4f3}.ng-path-cell.active{position:relative;z-index:1;background:#f5a524;color:#372600;box-shadow:0 0 0 3px #ffdf9a;animation:path-current .55s ease-in-out infinite alternate}
.ng-viz-options{justify-content:flex-end}.ng-speed{display:flex;gap:9px;align-items:center;color:var(--mute);font-size:13px;font-weight:700}.ng-speed .ng-select{min-width:110px}
@keyframes path-current{to{transform:scale(1.14);box-shadow:0 0 0 5px #ffe6b6}}
@keyframes path-land{from{transform:scale(.78);filter:brightness(1.2)}to{transform:scale(1);filter:brightness(1)}}

/* ---------- Codebreaker ---------- */
.cb-play{display:grid;gap:14px;max-width:650px;width:100%;margin:auto}
.cb-card{display:grid;gap:14px;padding:clamp(16px,3vw,26px);border:1px solid var(--line-2);border-radius:24px;background:linear-gradient(160deg,#fff 45%,var(--c-soft));box-shadow:0 16px 42px -34px var(--c-ink)}
.cb-title{margin:0;text-align:center;font:500 clamp(23px,4vw,31px)/1.1 var(--serif);color:var(--c-ink)}
.cb-intro,.cb-note{margin:0;text-align:center;color:var(--mute);font-size:14px;line-height:1.5}
.cb-guesses{display:grid;gap:7px;max-height:310px;overflow-y:auto;padding:2px 4px;overscroll-behavior:contain}
.cb-guess-row{display:flex;justify-content:center;align-items:center;gap:clamp(24px,9vw,72px);min-height:46px;padding:6px 12px;border-radius:14px;background:rgba(255,255,255,.76);animation:guess-arrive .32s ease-out both}
.cb-guess-pegs,.cb-feedback{display:flex;gap:7px;align-items:center}
.cb-guess-peg{width:32px;height:32px;border:3px solid #fff;border-radius:50%;background:var(--peg);box-shadow:0 2px 7px #15203a26;animation:peg-arrive .3s calc(var(--d,0ms) + .06s) cubic-bezier(.2,.9,.3,1.3) both}
.cb-mark{width:12px;height:12px;border-radius:50%;background:#e5e7eb;border:1px solid #c5cad4;animation:peg-arrive .24s calc(var(--d,0ms) + .1s) ease-out both}
.cb-mark.exact{background:#293348;border-color:#293348}.cb-mark.near{background:#fff;border:3px solid #6d7484}
.cb-builder{display:grid;gap:10px;justify-items:center;padding:15px 12px 12px;border-radius:18px;background:#ffffffa8}
.cb-label{margin:0;color:var(--c-ink);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.cb-slots{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.cb-slot{width:clamp(42px,11vw,58px);height:clamp(42px,11vw,58px);display:grid;place-items:center;border:2px dashed #bdc5d0;border-radius:50%;background:#fff;color:#7a8391;font:800 14px var(--sans);cursor:pointer;transition:transform .14s,border-color .14s,box-shadow .14s}
.cb-slot.selected{border:3px solid var(--c);box-shadow:0 0 0 4px color-mix(in srgb,var(--c) 18%,transparent);transform:translateY(-2px)}
.cb-slot.filled{border:3px solid #fff;background:var(--peg);box-shadow:0 2px 8px #15203a2a}.cb-slot i,.cb-color i{width:70%;height:70%;border-radius:50%;background:var(--peg);box-shadow:inset 0 2px 4px #ffffff59,inset 0 -3px 5px #0002}
.cb-palette{display:flex;justify-content:center;gap:clamp(3px,1.8vw,12px);flex-wrap:wrap}
.cb-color{display:grid;justify-items:center;gap:4px;min-width:48px;padding:5px 6px;border:2px solid transparent;border-radius:13px;background:transparent;color:var(--ink-2);cursor:pointer;transition:background .16s,transform .16s,border-color .16s}
.cb-color i{width:31px;height:31px;border:2px solid #fff;background:var(--peg);box-shadow:0 2px 6px #15203a2b}.cb-color small{font-size:10px;font-weight:700}
.cb-color:hover{transform:translateY(-2px)}.cb-color.chosen{border-color:var(--c);background:var(--c-soft)}
.cb-actions{display:flex;justify-content:center;gap:9px;flex-wrap:wrap}.cb-note.good{color:#17753a;font-weight:800}.cb-note.bad{color:#9e342e;font-weight:800}
@keyframes guess-arrive{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes peg-arrive{from{opacity:0;transform:scale(.55)}to{opacity:1;transform:scale(1)}}
@media(prefers-reduced-motion:reduce){.ng-path-cell,.cb-guess-row,.cb-guess-peg,.cb-mark,.cb-slot,.cb-color{animation:none;transition:none}}
.ng-bits{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.ng-bit{display:grid;gap:5px;place-items:center;min-width:62px;padding:10px 8px;border:1px solid var(--line-2);border-radius:12px;background:#fff;color:var(--ink);cursor:pointer;transition:background .15s,transform .15s}.ng-bit b{font-size:25px}.ng-bit small{color:var(--ink-2)}.ng-bit.on{background:#dff1ee;border-color:#258b7e;transform:translateY(-2px)}
.ng-rhythm{display:grid;gap:8px;overflow-x:auto;padding-bottom:4px}.ng-rhythm-row{display:grid;grid-template-columns:72px repeat(16,minmax(25px,1fr));align-items:center;gap:4px;min-width:540px}.ng-rhythm-row>b{font-size:12px}.ng-step{height:34px;border:1px solid var(--line-2);border-radius:7px;background:#f5f7fa;color:#91a0ad;font-weight:900}.ng-step.beat{border-left:2px solid #8b99a8}.ng-step.on{background:#ffd168;color:#734900;border-color:#d6a232}.ng-step.playing{outline:3px solid #35a9b2;outline-offset:1px}
.ng-3d{height:400px;min-height:300px;overflow:hidden;border-radius:16px;background:#edf4f7}.ng-3d canvas{max-width:100%}
.ng-physics{overflow:hidden;border-radius:14px;background:#e9f3f6}.ng-physics canvas{display:block;width:100%;height:auto}
.ng-arrows{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.ng-arrows .ng-row{justify-content:center}
.ng-2048{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;width:min(100%,410px);margin:auto;padding:10px;background:#b6aa9c;border-radius:16px;outline-offset:3px;touch-action:manipulation}
.ng-tile{display:grid;place-items:center;aspect-ratio:1;border-radius:10px;background:#d8d0c7;color:#4e473f;font-size:clamp(21px,6vw,36px);font-weight:900}.ng-tile[data-value="2"]{background:#eee4da}.ng-tile[data-value="4"]{background:#ede0c8}.ng-tile[data-value="8"]{background:#f2b179;color:#fff}.ng-tile[data-value="16"]{background:#f59563;color:#fff}.ng-tile[data-value="32"]{background:#f67c5f;color:#fff}.ng-tile[data-value="64"]{background:#f65e3b;color:#fff}.ng-tile[data-value="128"],.ng-tile[data-value="256"],.ng-tile[data-value="512"],.ng-tile[data-value="1024"],.ng-tile[data-value="2048"]{background:#d9ad39;color:#fff;font-size:clamp(17px,4vw,28px)}
.ng-sudoku{display:grid;grid-template-columns:repeat(4,minmax(54px,76px));justify-content:center;gap:3px;padding:10px;background:#fff;border-radius:14px}.ng-sudoku-cell{aspect-ratio:1;border:1px solid #cad4dc;background:#f4f7f9;border-radius:4px;font-size:26px;font-weight:800;color:#275171}.ng-sudoku-cell:nth-child(4n+1){border-left:2px solid #63798a}.ng-sudoku-cell:nth-child(4n){border-right:2px solid #63798a}.ng-sudoku-cell:nth-child(n+5):nth-child(-n+8),.ng-sudoku-cell:nth-child(n+13){border-top:2px solid #63798a}.ng-sudoku-cell.clue{background:#e8edf1;color:#344052}.ng-sudoku-cell.selected{outline:3px solid #df9b2d;z-index:1}
@media(max-width:640px){.ng-editors{grid-template-columns:1fr}.ng-between{align-items:stretch}.ng-3d{height:320px;min-height:280px}.ng-sudoku{grid-template-columns:repeat(4,minmax(48px,64px))}.ng-grid{gap:3px;padding:8px}}

/* interactive lessons colour */
:root{--c-learn:#0B7A6E;--c-learn-soft:#DDF2EE;--c-learn-ink:#065C52}
[data-c=learn]{--c:var(--c-learn);--c-soft:var(--c-learn-soft);--c-ink:var(--c-learn-ink)}

/* ---------- magic: cinematic hero, glowing play area ---------- */
.magic-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:0;transition:opacity 1.6s ease}.magic-canvas.in{opacity:1}
.magic-spark{position:fixed;width:8px;height:8px;border-radius:50%;pointer-events:none;z-index:9999;box-shadow:0 0 10px currentColor}
.play-hero .w-h1 em{background:linear-gradient(90deg,var(--c,#C24A2C),#E5A12C,var(--c-ink,#6446C4));-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:shimmer 6s linear infinite}
@keyframes shimmer{to{background-position:-200% 0}}
@property --ang{syntax:"<angle>";initial-value:0deg;inherits:false}
.play-stage-wrap{position:relative}
.play-frame{border:0;padding:3px;background:conic-gradient(from var(--ang),var(--c),#E5A12C,var(--c-ink),#fff0,var(--c));animation:frame-spin 9s linear infinite;box-shadow:0 40px 90px -45px var(--c),0 0 60px -30px var(--c)}
@keyframes frame-spin{to{--ang:360deg}}
.play-frame>.gs{border-radius:27px}
.play-frame>.play-loading{background:var(--card);border-radius:27px}
.gs-bar{background:linear-gradient(110deg,var(--c-ink,#1D2856),var(--c,#2557B8) 140%)}
.gs-stage{background:radial-gradient(120% 90% at 50% -10%,var(--c-soft,#faf5ea),var(--card) 62%)}
.btn-primary:not(:disabled){position:relative;overflow:hidden}.btn-primary:not(:disabled)::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.28) 50%,transparent 65%);transform:translateX(-120%);transition:transform .7s}.btn-primary:not(:disabled):hover::after{transform:translateX(120%)}
@media(prefers-reduced-motion:reduce){.play-frame,.play-hero .w-h1 em{animation:none}.magic-canvas{display:none}}

/* ---------- full screen and small screens ---------- */
html.gs-lock{overflow:hidden}
.gs.is-fs,.gs:fullscreen{position:fixed;inset:0;z-index:9990;width:100%;height:100dvh;max-height:none;border-radius:0;background:var(--paper);overflow:hidden}
.gs.is-fs .gs-stage,.gs:fullscreen .gs-stage{flex:1 1 auto;min-height:0;overflow:auto;align-content:center;justify-items:center;padding:clamp(8px,1.6vw,22px)}
.gs.is-fs .gs-stage>*,.gs:fullscreen .gs-stage>*{width:100%;max-width:min(1100px,100%)}
.gs.is-fs .gs-foot,.gs:fullscreen .gs-foot{display:none}
.gs.is-fs .fw-wrap{border-radius:16px}
.play-frame:has(.gs.is-fs){animation:none;background:none;box-shadow:none;padding:0}
@media(max-width:640px){
  .play-frame{border-radius:22px;padding:2px;min-height:260px}.play-frame>.gs{border-radius:20px}
  .gs-bar{padding:10px 12px;gap:8px}.gs-title b{font-size:17px}.gs-stats{gap:6px;width:100%;margin-left:0;order:3}.gs-stat{flex:1;min-width:0;padding:4px 6px}.gs-stat b{font-size:17px}
  .gs-stage{padding:10px;gap:12px}.gs-btn{width:36px;height:36px}.gs-btns{margin-left:auto}
  .gm-menu{padding:16px;gap:10px}.gm-menu h3{font-size:24px}
}
@media(max-height:520px) and (orientation:landscape){
  .play-head .lede,.play-head .play-facts{display:none}.gs-bar{padding:6px 12px}.gs-stage{padding:8px}.fw-ui .gm-menu{padding:12px;gap:8px}.gm-menu h3{font-size:22px}
}
@media(prefers-reduced-motion:reduce){.play-frame{animation:none}}

/* ---------- the future layer: three-tier level maps, cinematic level intros, code editor ---------- */
.fut{position:relative;border-radius:22px;padding:clamp(16px,3vw,28px);color:#eaf0ff;background:radial-gradient(120% 80% at 50% 0%,#2c2575 0%,#141137 55%,#0a0a24 100%);overflow:hidden;isolation:isolate}
.fut::before{content:"";position:absolute;left:-20%;right:-20%;bottom:-30%;height:65%;background:repeating-linear-gradient(90deg,rgba(124,196,255,.2) 0 1px,transparent 1px 46px),repeating-linear-gradient(0deg,rgba(124,196,255,.2) 0 1px,transparent 1px 46px);transform:perspective(420px) rotateX(62deg);transform-origin:50% 0;-webkit-mask-image:linear-gradient(transparent,#000 35%);mask-image:linear-gradient(transparent,#000 35%);z-index:-1;animation:fut-grid 5s linear infinite}
@keyframes fut-grid{to{background-position:0 46px,0 46px}}
.fut::after{content:"";position:absolute;inset:0;background:radial-gradient(2px 2px at 20% 30%,#ffffff90,transparent),radial-gradient(1.5px 1.5px at 70% 18%,#ffffff70,transparent),radial-gradient(1.5px 1.5px at 42% 12%,#ffffff60,transparent),radial-gradient(2px 2px at 88% 42%,#ffffff70,transparent),radial-gradient(1.5px 1.5px at 8% 60%,#ffffff60,transparent);z-index:-1;pointer-events:none}
.tm{display:grid;gap:18px}
.tm-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.tm-kicker{margin:0;font:800 11px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:#9fb4ff}
.tm h3{margin:4px 0 0;font:500 clamp(26px,4vw,38px)/1.05 var(--serif);color:#fff}
.tm-sub{margin:6px 0 0;color:#c8d2f5;max-width:56ch}
.tm-total{margin:0;padding:8px 14px;border-radius:99px;background:rgba(255,212,59,.14);border:1px solid rgba(255,212,59,.4);color:#ffe8a3;font-weight:700}.tm-total b{color:#ffd43b}
.tm-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.tm-tab{display:grid;gap:3px;align-content:start;text-align:left;padding:12px 14px;border-radius:16px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:#dfe6ff;cursor:pointer;font:inherit;transition:transform .2s,background .2s,border-color .2s;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.tm-tab small{font:800 10px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--tc)}
.tm-tab b{font:700 17px var(--sans);color:#fff}
.tm-tab-blurb{font-size:12.5px;color:#b6c1ea;line-height:1.35}
.tm-bar{height:5px;border-radius:9px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:6px}.tm-bar i{display:block;height:100%;background:var(--tc);box-shadow:0 0 12px var(--tc)}
.tm-tab-stars{font-size:12px;color:#ffe8a3;font-weight:700}
.tm-tab:hover{transform:translateY(-2px);border-color:var(--tc)}
.tm-tab.on{background:linear-gradient(160deg,color-mix(in srgb,var(--tc) 38%,transparent),rgba(255,255,255,.05));border-color:var(--tc);box-shadow:0 0 0 1px var(--tc),0 14px 30px -18px var(--tc)}
.tm-path{--d:clamp(54px,9vw,72px);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 14px;padding:10px 4px 6px}
.tm-node{position:relative;display:grid;justify-items:center;align-content:start;gap:6px;padding:0;border:0;background:none;color:#fff;cursor:pointer;font:inherit;animation:tm-in .5s both;animation-delay:calc(var(--i)*55ms)}
@keyframes tm-in{from{opacity:0;transform:translateY(14px) scale(.9)}}
.tm-disc{position:relative;z-index:1;display:grid;place-items:center;width:var(--d);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 35% 28%,#ffffff70 0,transparent 42%),linear-gradient(160deg,var(--tc),color-mix(in srgb,var(--tc) 55%,#000));box-shadow:0 7px 0 color-mix(in srgb,var(--tc) 45%,#000),0 14px 24px -8px rgba(0,0,0,.6);transition:transform .15s,box-shadow .15s}
.tm-disc b{font:800 clamp(18px,3vw,24px) var(--sans);text-shadow:0 2px 0 rgba(0,0,0,.25)}
.tm-node:hover .tm-disc{transform:translateY(-3px)}
.tm-node:active .tm-disc{transform:translateY(5px);box-shadow:0 2px 0 color-mix(in srgb,var(--tc) 45%,#000),0 6px 12px -6px rgba(0,0,0,.6)}
.tm-node:focus-visible{outline:none}.tm-node:focus-visible .tm-disc{outline:3px solid #fff;outline-offset:4px}
.tm-node.locked{cursor:not-allowed}.tm-node.locked .tm-disc{background:linear-gradient(160deg,#4a4f72,#2c2f4c);box-shadow:0 7px 0 #1d2036}.tm-node.locked:hover .tm-disc{transform:none}
.tm-node.done .tm-disc{background:radial-gradient(circle at 35% 28%,#ffffff90 0,transparent 42%),linear-gradient(160deg,#ffd43b,#f59f00);box-shadow:0 7px 0 #b06b00,0 0 26px -4px #ffd43b}
.tm-node.done .tm-disc b{color:#5c3a00;text-shadow:none}
.tm-node.next .tm-disc::after{content:"";position:absolute;inset:-8px;border-radius:50%;border:2px solid var(--tc);animation:tm-ping 1.6s ease-out infinite}
@keyframes tm-ping{from{opacity:.9;transform:scale(.9)}to{opacity:0;transform:scale(1.35)}}
.tm-stars{min-height:1.1em;font-size:14px;letter-spacing:2px;color:#ffd43b;text-shadow:0 0 8px rgba(255,212,59,.6)}
.tm-name{font-size:12.5px;font-weight:700;color:#d7defa;text-align:center;line-height:1.25;max-width:15ch}
.tm-node.locked .tm-name{color:#7d86ad}
.tm-node::before{content:"";position:absolute;top:calc(var(--d)/2 - 1px);height:3px;background:repeating-linear-gradient(90deg,var(--tc) 0 8px,transparent 8px 14px);opacity:.5;z-index:0}
.tm-node[data-link=r]::before{left:50%;width:calc(100% + 14px)}
.tm-node[data-link=l]::before{right:50%;width:calc(100% + 14px)}
.tm-node[data-link=d]::before{left:calc(50% - 1px);width:3px;height:calc(100% + 26px);background:repeating-linear-gradient(180deg,var(--tc) 0 8px,transparent 8px 14px)}
.tm-node[data-link=""]::before{display:none}
.ti{position:absolute;inset:0;z-index:30;display:grid;place-content:center;justify-items:center;gap:6px;padding:20px;text-align:center;background:radial-gradient(circle at 50% 50%,rgba(14,12,48,.62),rgba(5,5,20,.9));color:#fff;animation:ti-in .35s ease-out;cursor:pointer;overflow:hidden;perspective:600px}
.ti.out{opacity:0;transition:opacity .35s}
.ti-sweep{position:absolute;top:-50%;bottom:-50%;left:-40%;width:30%;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--tc) 60%,#fff),transparent);opacity:.3;transform:skewX(-20deg);animation:ti-sweep 1.2s ease-in-out .1s both}
@keyframes ti-sweep{to{left:120%}}
.ti-kicker{margin:0;font:800 12px var(--sans);letter-spacing:.24em;text-transform:uppercase;color:color-mix(in srgb,var(--tc) 55%,#fff);animation:ti-up .5s both}
.ti-title{margin:0;font:500 clamp(30px,6vw,56px)/1.05 var(--serif);text-shadow:0 0 30px color-mix(in srgb,var(--tc) 70%,transparent)}
.ti-word{display:inline-block;white-space:nowrap}.ti-ch{display:inline-block;white-space:pre;animation:ti-ch .55s cubic-bezier(.2,.9,.3,1.3) both;animation-delay:calc(120ms + var(--i)*28ms)}
.ti-sub{margin:4px 0 0;max-width:42ch;color:#cfd8ff;animation:ti-up .5s .35s both}
@keyframes ti-in{from{opacity:0}}@keyframes ti-up{from{opacity:0;transform:translateY(10px)}}@keyframes ti-ch{from{opacity:0;transform:translateY(24px) rotateX(70deg) scale(.6)}}
.ce{height:100%;min-height:190px;border-radius:16px;overflow:hidden;border:1px solid rgba(124,196,255,.28);background:#0b1230;box-shadow:0 18px 40px -26px #000}
.ce .cm-editor{height:100%}
.ce-busy{opacity:.94}
.ce-line-run{background:linear-gradient(90deg,rgba(124,196,255,.3),rgba(124,196,255,.06))!important;box-shadow:inset 3px 0 #7cc4ff}
.ce-line-err{background:linear-gradient(90deg,rgba(255,90,90,.34),rgba(255,90,90,.08))!important;box-shadow:inset 3px 0 #ff5a5a}
.ce-plain{display:block;width:100%;height:100%;min-height:190px;border:0;padding:12px 14px;background:#0b1230;color:#e8eeff;font:15px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical;tab-size:4}
@media(max-width:640px){.tm-tab{padding:9px 10px}.tm-tab-blurb{display:none}.tm-tab b{font-size:14px}.tm-path{gap:22px 6px}.tm-name{font-size:11px}}
@media(prefers-reduced-motion:reduce){.fut::before,.tm-node,.tm-node.next .tm-disc::after{animation:none}}
.adv-map[hidden],.adv-play[hidden]{display:none}
.adv-play{position:relative;display:grid;gap:12px}
/* shared controls for the adventure games */
.cj-chip{padding:6px 11px;border-radius:99px;border:1px solid rgba(255,255,255,.4);background:rgba(12,16,48,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:#fff;font:700 12.5px var(--sans);cursor:pointer}
.cj-count{cursor:default}
.lm-tray,.lm-btns{display:flex;gap:8px;flex-wrap:wrap}
.lm-piece{display:grid;grid-template-columns:auto auto;grid-template-rows:auto auto;column-gap:10px;align-items:center;padding:8px 14px;border-radius:14px;border:2px solid var(--line-2);background:#fff;cursor:pointer;font:inherit;text-align:left;transition:transform .15s,border-color .15s}
.lm-piece .lm-ico{grid-row:span 2;font-size:24px;line-height:1;color:var(--c)}
.lm-piece b{font-size:14px}.lm-piece small{color:var(--ink-2);font-weight:700}
.lm-piece.on{border-color:var(--c);background:var(--c-soft);transform:translateY(-2px)}
.lm-note{margin:0;min-height:1.4em;font-weight:700;color:var(--c-ink)}
.fm-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.fm-in{width:110px;height:44px;padding:0 12px;border-radius:12px;border:2px solid var(--line-2);font:700 18px var(--sans);background:#fff;color:var(--ink)}
.fm-in:focus{outline:0;border-color:var(--c);box-shadow:0 0 0 4px var(--c-soft)}
.fm-in.big{width:150px;font-size:22px}.fm-in.rule{width:min(240px,100%);font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.cn-prompt{margin:0;font:500 clamp(22px,3vw,28px)/1.15 var(--serif);color:var(--ink)}
.cn-dots{display:flex;gap:6px}.cn-dots i{width:12px;height:12px;border-radius:50%;background:var(--line-2)}.cn-dots i.cur{background:var(--c);box-shadow:0 0 0 3px var(--c-soft)}.cn-dots i.ok{background:#22c55e}.cn-dots i.bad{background:#ef4444}
.cn-no3d{padding:30px;color:#cfd8ff;text-align:center}
.cn-msg{margin:0;min-height:1.4em;padding:10px 12px;border-radius:12px;background:var(--c-soft);color:var(--c-ink);font-weight:700;line-height:1.45}
.cn-msg.is-bad{background:#fde8e8;color:#9b1c1c}.cn-msg.is-good{background:#e3f9e5;color:#1b5e20}.cn-msg:empty{display:none}
.pc-thumb{flex:none;width:68px;height:68px;border-radius:20px;overflow:hidden;box-shadow:0 10px 20px -12px var(--c),0 0 0 3px var(--c-soft);margin-right:4px;align-self:center}
.pc-thumb img{width:100%;height:100%;object-fit:cover}
.play-cat .section-head{align-items:center}
.pf-tiers{background:linear-gradient(90deg,var(--c),color-mix(in srgb,var(--c) 60%,#ffb703))!important;color:#fff!important}
@media(prefers-reduced-motion:reduce){.gcard,.gcard-tile,.gcard-ico,.gcard.adv::after,.gcard:hover .gcard-art::before{animation:none!important;transition:none!important}.gcard:hover,.gcard:focus-visible{transform:translateY(-4px)}}
.play-learn pre{margin:10px 0 0;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.75);overflow-x:auto;max-width:100%;font-size:14px;line-height:1.5}.play-learn pre code{background:none;padding:0;border:0;color:inherit}

/* ---------- categories added for English, science and world-knowledge games ---------- */
:root{--c-english:#C4366B;--c-english-soft:#FBE3EC;--c-english-ink:#8E2250;--c-knowledge:#1F7A9B;--c-knowledge-soft:#DCEFF6;--c-knowledge-ink:#145670}
[data-c=english]{--c:var(--c-english);--c-soft:var(--c-english-soft);--c-ink:var(--c-english-ink)}
[data-c=knowledge]{--c:var(--c-knowledge);--c-soft:var(--c-knowledge-soft);--c-ink:var(--c-knowledge-ink)}

/* ---------- adaptive practice kit (Grammar Gym, Science Practice, Geography Practice, Read and Answer) ---------- */
.qk{display:grid;gap:14px;width:100%;max-width:780px;margin-inline:auto}
.qk-menu{display:grid;gap:14px;justify-items:center;text-align:center}
.qk-menu h3{font:500 clamp(26px,5vw,34px) var(--serif);margin:0;color:var(--c-ink)}
.qk-skills{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;width:100%;text-align:left}
.qk-skill{display:grid;gap:4px;align-content:start;padding:16px;border-radius:18px;border:2px solid var(--line-2);background:#fff;cursor:pointer;font:inherit;color:var(--ink);text-align:left;transition:transform .2s,border-color .2s,box-shadow .2s}
.qk-skill:hover,.qk-skill:focus-visible{transform:translateY(-3px);border-color:var(--c);box-shadow:0 14px 26px -18px var(--c)}
.qk-ico{font-size:30px;line-height:1}.qk-sname{font:700 16px/1.25 var(--sans)}.qk-sdesc{font-size:13.5px;line-height:1.4;color:var(--ink-2)}
.qk-mini{display:block;height:8px;border-radius:99px;background:var(--c-soft);overflow:hidden;margin-top:6px}.qk-mini i{display:block;height:100%;background:var(--c);border-radius:99px}
.qk-skill small{font:700 12px var(--sans);color:var(--c-ink)}
.qk-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.qk-top b{font:700 17px var(--sans);color:var(--c-ink)}
.qk-meter{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:12px 16px;border-radius:16px;background:#fff;border:1.5px solid var(--line-2)}
.qk-meter-l{display:grid;line-height:1.1}.qk-sc{font:700 34px var(--sans);color:var(--c-ink);font-variant-numeric:tabular-nums}
.qk-meter-l small,.qk-tier{font:700 11px var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2)}
.qk-bar{display:block;height:14px;border-radius:99px;background:var(--c-soft);overflow:hidden}
.qk-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c),color-mix(in srgb,var(--c) 60%,#fff));border-radius:99px;transition:width .5s cubic-bezier(.3,.7,.3,1.2)}
.qk-card{position:relative;display:grid;gap:12px;padding:clamp(14px,3vw,24px);border-radius:22px;background:#fff;border:1.5px solid var(--line-2)}
.qk-title{font:700 12px var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--c-ink)}
.qk-passage{margin:0;padding:12px 14px;border-radius:14px;background:var(--c-soft);font:500 17px/1.55 var(--serif);color:var(--ink)}
.qk-passage.short{font-size:22px;text-align:center}
.qk-passage[hidden],.qk-title[hidden]{display:none}
.qk-q{margin:0;font:600 clamp(19px,3.4vw,24px)/1.3 var(--sans)}
.qk-choices{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.qk-choice{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;border:2px solid var(--line-2);background:#fff;font:600 16px/1.3 var(--sans);color:var(--ink);cursor:pointer;text-align:left;transition:border-color .15s,background .15s,transform .15s}
.qk-choice kbd{flex:none;display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:var(--c-soft);color:var(--c-ink);font:800 12px var(--sans)}
.qk-choice:hover:not(:disabled){border-color:var(--c);background:var(--c-soft);transform:translateY(-1px)}
.qk-choice.ok{border-color:#17753A;background:#dff3e6}.qk-choice.no{border-color:#B3261E;background:#fdeceb}.qk-choice:disabled{cursor:default}
.qk-fb{margin:0;min-height:1.4em;font-weight:600;line-height:1.5}.qk-fb.good{color:#0e5a2a}.qk-fb.bad{color:#8f1d17}
.qk-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
@media(max-width:600px){.qk-choices{grid-template-columns:1fr}.qk-meter{grid-template-columns:auto 1fr}.qk-tier{grid-column:1/-1}}
@media(prefers-reduced-motion:reduce){.qk-bar i{transition:none}}

/* the hidden attribute must win over button display rules inside any game */
.gs [hidden]{display:none!important}
/* "Keep playing" at the end of a round */
.gs-more{margin-top:14px}.gs-more-h{margin:0 0 6px;font-weight:800;font-size:14px}.gs-more-row{display:flex;flex-wrap:wrap;gap:8px}
.gs-more-card{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border:2px solid var(--comic-ink,#24203a);border-radius:12px;background:#fff;color:inherit;text-decoration:none;font-weight:700;font-size:14px;transition:transform var(--t-fast,.16s) var(--ease-ui,ease)}
.gs-more-card:hover{transform:translateY(-2px)}.gs-more-card.daily{background:#FFF4DC}
.gs-feedback{margin-top:12px;padding:12px;border:2px solid var(--comic-ink,#24203a);border-radius:14px;background:#f6f8ff}
.gs-feedback-title{display:block;margin-bottom:8px}.gs-feedback-row{display:flex;flex-wrap:wrap;gap:7px}
.gs-feedback-choice{padding:7px 10px;border:1px solid var(--comic-ink,#24203a);border-radius:999px;background:#fff;color:inherit;font-family:inherit;font-weight:600;font-size:13px;line-height:1.2;cursor:pointer}
.gs-feedback-choice:hover:not(:disabled){background:#fff4dc;transform:translateY(-1px)}.gs-feedback-choice:disabled{opacity:.65;cursor:default}
.gs-feedback-note{margin:7px 0 0;color:var(--mute);font-size:12px}
@media(prefers-reduced-motion:reduce){.gs-more-card{transition:none}}

/* two daily cards stacked in the right column of the hub */
.play-dailies{display:grid;gap:14px;align-content:stretch}.play-dailies .play-daily{padding:16px 20px}.play-dailies .play-daily b{font-size:22px}
.gs-class{margin:12px 0 0;font-size:13.5px;color:var(--mute)}.gs-class a{font-weight:800}
.rx{margin:6px auto;display:grid;justify-items:center;gap:2px}.rx img{height:110px;width:auto;max-width:100%;border-radius:14px;border:2px solid var(--comic-ink,#24203a);background:#fff}.rx a{font-size:10px;color:var(--mute)}

/* ---------- game experience: the game comes first on the page ---------- */
.play-head{padding-block:12px 4px}.play-head .crumbs{margin-bottom:4px}.play-head .eyebrow{margin:0}.play-head .w-h1{font-size:clamp(24px,3.6vw,38px);margin:2px 0 4px}
.play-stage-wrap{margin-top:6px}
.play-meta{margin:18px auto 0}.play-meta .lede{max-width:70ch;margin:0 0 10px}.play-meta .play-facts{margin:10px 0 0}
.play-continue{margin-top:10px}.play-continue:empty{display:none}
.gcard-played{position:absolute;top:10px;left:10px;z-index:3;padding:3px 9px;border-radius:99px;background:#e6f5ea;color:#0e5a2a;border:2px solid var(--comic-ink,#24203a);font:800 11px var(--sans)}

/* ---------- quiz-kit practice games: bigger, friendlier, more alive ---------- */
.qk{max-width:820px;margin-inline:auto;width:100%}
.qk-card{gap:14px;padding:clamp(18px,3.4vw,32px);border-radius:26px;border:2px solid var(--c);box-shadow:0 18px 40px -28px var(--c)}
.qk-q{font:700 clamp(24px,4.6vw,38px)/1.25 var(--sans);text-align:center;margin:4px 0 6px}
.qk-passage{font-size:18px}
.qk-choices{gap:12px}
.qk-choice{min-height:64px;padding:14px 18px;border-radius:16px;font:700 clamp(18px,2.6vw,22px)/1.25 var(--sans);box-shadow:0 3px 0 var(--line-2)}
.qk-choice kbd{width:32px;height:32px;border-radius:10px;font-size:14px}
.qk-choice:hover:not(:disabled){box-shadow:0 5px 0 var(--c)}.qk-choice:active:not(:disabled){transform:translateY(2px);box-shadow:0 1px 0 var(--c)}
.qk-choice.ok{animation:qk-pop .35s var(--ease-out,ease)}.qk-choice.no{animation:qk-nudge .35s}
@keyframes qk-pop{40%{transform:scale(1.04)}}@keyframes qk-nudge{25%{transform:translateX(-5px)}60%{transform:translateX(5px)}}
.qk-fb{font-size:16px;text-align:center;min-height:2.6em}
.qk-actions{justify-content:center}.qk-actions .btn{min-width:180px}
.qk-hist{display:flex;gap:5px;justify-content:center;min-height:10px}.qk-hist i{width:22px;height:8px;border-radius:5px;background:var(--line-2)}.qk-hist i.ok{background:#17753A}.qk-hist i.no{background:#B3261E}
.qk-combo{justify-self:center;padding:5px 14px;border-radius:99px;background:#FFF4DC;border:2px solid var(--comic-ink,#24203a);font:800 14px var(--sans);color:#7a4300}.qk-combo[hidden]{display:none}
.qk-combo.pulse{animation:qk-pop .45s var(--ease-out,ease)}
@media(max-width:600px){.qk-choice{min-height:58px}.qk-q{font-size:24px}}
@media(prefers-reduced-motion:reduce){.qk-choice.ok,.qk-choice.no,.qk-combo.pulse{animation:none}}

/* ---------- end of a round: stars and a challenge ---------- */
.gs-stars{display:flex;justify-content:center;gap:6px;margin:2px 0 8px;font-size:44px;line-height:1}
.gs-stars span{color:var(--ink-a12,rgba(26,22,18,.12));transform:scale(.6);opacity:0}.gs-stars span.on{color:#F2B01E;text-shadow:0 2px 0 rgba(122,67,0,.35);animation:gs-star .5s var(--d,0s) both cubic-bezier(.2,1.4,.4,1)}
.gs-stars span:not(.on){animation:gs-star-off .4s var(--d,0s) both}
@keyframes gs-star{from{transform:scale(.3) rotate(-30deg);opacity:0}to{transform:none;opacity:1}}@keyframes gs-star-off{to{transform:none;opacity:1}}
.gs-sharerow{margin:12px 0 0;text-align:center}.gs-share{display:inline-block;padding:8px 14px;border-radius:99px;background:#1FA855;color:#fff;font-weight:800;font-size:14px;text-decoration:none}
.gs-sharerow{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.gs-copy-result{padding:8px 14px;border:2px solid var(--comic-ink,#24203a);border-radius:99px;background:#fff;color:var(--ink);font:800 14px var(--sans);cursor:pointer;transition:transform var(--t-fast,.16s) var(--ease-ui,ease)}
.gs-copy-result:hover,.gs-copy-result:focus-visible{transform:translateY(-1px);box-shadow:0 3px 0 var(--comic-ink,#24203a)}
@media(prefers-reduced-motion:reduce){.gs-copy-result{transition:none}}
@media(prefers-reduced-motion:reduce){.gs-stars span,.gs-stars span.on{animation:none;transform:none;opacity:1}}
.w-pagehead.play-head{padding:10px 0 8px!important}
.w-pagehead.play-head .w-h1{font-size:clamp(22px,3vw,34px)!important;line-height:1.15!important;margin:2px 0 0!important;max-width:none}
.w-pagehead.play-head .crumbs{margin:0 0 2px}

.qk-passage.code{font:600 16px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre;overflow-x:auto;text-align:left;background:#1d2433;color:#e8ecf5}

/* Guided learning notes below selected game pages */
.play-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.play-guide-card{min-width:0;padding:clamp(14px,2.4vw,20px);border:1.5px solid var(--line-2);border-radius:18px;background:var(--card);box-shadow:0 8px 22px -20px var(--c-ink,var(--ink))}
.play-guide-card h3{margin:0 0 8px;color:var(--c-ink,var(--ink));font:700 clamp(16px,2vw,19px)/1.25 var(--sans)}
.play-guide-card p{margin:0 0 9px;line-height:1.6}.play-guide-card p:last-child{margin-bottom:0}
.play-guide-card details{margin-top:8px;padding:10px 12px;border-radius:12px;background:var(--c-soft,var(--paper-2))}
.play-guide-card summary{cursor:pointer;font-weight:800;color:var(--c-ink,var(--ink))}.play-guide-card details p{margin-top:7px}
@media(max-width:850px){.play-guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.play-guide-grid{grid-template-columns:1fr}.play-guide-card{border-radius:14px}}