html{touch-action:manipulation}  /* no double-tap zoom on tablets (pinch still works outside the writing pad) */
/* Fonts are self-hosted (SIL Open Font License) so no outside service sees kids' visits. */
@font-face{font-family:"Baloo 2";src:url(fonts/baloo-2-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Baloo 2";src:url(fonts/baloo-2-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Baloo 2";src:url(fonts/baloo-2-latin-800-normal.woff2) format("woff2");font-weight:800;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(fonts/atkinson-hyperlegible-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Atkinson Hyperlegible";src:url(fonts/atkinson-hyperlegible-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(fonts/jetbrains-mono-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(fonts/jetbrains-mono-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
:root{
  --paper:#F5F8FC; --grid:#DCE6F2; --card:#FFFFFF; --ink:#1C2846; --muted:#5B6884; --line:#C9D5E6; --soft:#EEF3F9;
  --brand:#1E2452; --brand-ink:#FFFFFF; --accent:#F26A1B; --accent-ink:#FFFFFF;
  --good:#1F8A4C; --good-bg:#E3F4EA; --bad:#C2413A; --bad-bg:#FBE5E3; --warn:#9A6400; --warn-bg:#FBF0DB; --info:#0F7C8A; --info-bg:#DDF2F4;
  --star:#F2B01B; --sub:#F26A1B; --ticket-ink:#1E2452; --ticket-on:#FFFFFF;
  --math:#F26A1B; --reading:#2F6FDC; --science:#1F9D55; --music:#B5179E; --typing:#6C5CE7; --coding:#0F8A8A; --history:#9A5B2E; --art:#D63A7A; --halloween:#E8641B; --writing:#0B7285; --jt:#2F7DE1; --tommy:#16A34A; --sports:#1E9E5A;
  --display:"Baloo 2","Trebuchet MS",system-ui,sans-serif;
  --body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){:root{
  --paper:#121826; --grid:#1B2437; --card:#1A2234; --ink:#E9EEF7; --muted:#A1ACC4; --line:#33405A; --soft:#202A3F;
  --brand:#0C1022; --accent:#FF8A3D; --accent-ink:#1A1006;
  --good:#4CC27F; --good-bg:#183326; --bad:#F07A72; --bad-bg:#3A1D1C; --warn:#E8B04E; --warn-bg:#3A2E15; --info:#5CC8D4; --info-bg:#163238;
  --star:#F5C14A; --ticket-ink:#C9D3F0; --ticket-on:#121826;
  --math:#FF8A3D; --reading:#6AA0FF; --science:#4CC27F; --music:#E05BC9; --typing:#A29BFE; --coding:#4CC7C0; --history:#D9925A; --art:#FF7AAE; --writing:#3BC9DB; --jt:#6AA8FF; --tommy:#4ADE80; --sports:#4CC27F; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;touch-action:manipulation}
/* touch-action: manipulation stops double-tap zoom on phones/tablets (fast tapping in lessons) but keeps pinch zoom */
*,*::before,*::after{touch-action:manipulation}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.5;
  background-size:28px 28px;min-height:100vh}
h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;text-wrap:balance}
p{margin:0}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--info);outline-offset:2px}
.wrap{max-width:960px;margin:0 auto;padding:20px 16px 72px}
.muted{color:var(--muted)}
.stack{display:flex;flex-direction:column;gap:14px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.card{background:var(--card);border:2px solid var(--line);border-radius:18px;padding:20px}

/* header + tabs */
.site-head{background:var(--brand);color:var(--brand-ink);position:sticky;top:0;z-index:20}
.site-head .inner{max-width:960px;margin:0 auto;padding:10px 16px 0;display:flex;flex-direction:column;gap:6px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;font-family:var(--display);font-weight:800;font-size:1.45rem;line-height:1}
.brand svg{flex:none}
.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;margin:0 -16px;padding:0 16px}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;text-decoration:none;color:#C9D0EE;font-family:var(--display);font-weight:700;font-size:1.02rem;padding:8px 9px 10px;border-radius:12px 12px 0 0;border-bottom:4px solid transparent;white-space:nowrap}
.tab:hover{color:#fff}
.tab.on{color:#fff;border-bottom-color:var(--tc,#fff);background:rgba(255,255,255,.08)}

.btn{border:2px solid var(--line);background:var(--card);border-radius:14px;padding:11px 20px;font-family:var(--display);font-weight:700;font-size:1.12rem;line-height:1.2;text-decoration:none;display:inline-flex;align-items:center;gap:8px}
.btn:hover:not(:disabled){border-color:var(--sub)}
.btn.primary{background:var(--sub);border-color:var(--sub);color:#fff}
.btn.small{padding:6px 12px;font-size:.95rem}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* home */
.hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;margin:8px 0 26px}
.hero h1{font-size:clamp(2.4rem,8vw,3.6rem);font-weight:800}
.hero p{font-size:1.15rem;color:var(--muted);margin-top:8px;max-width:52ch}
.subjects{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.subj{display:flex;gap:14px;align-items:center;text-decoration:none;color:var(--ink);background:var(--card);border:2px solid var(--line);border-radius:18px;padding:16px;transition:transform .12s,box-shadow .12s}
.subj:hover,.subj:focus-visible{transform:translateY(-3px);box-shadow:0 6px 0 var(--line);outline:none}
.subj .ic{width:62px;height:62px;border-radius:16px;display:grid;place-items:center;flex:none;background:color-mix(in srgb,var(--sc) 16%,var(--card));color:var(--sc)}
.subj b{font-family:var(--display);font-size:1.5rem;line-height:1.1;display:block}
.subj span{color:var(--muted);font-size:.95rem}
.subj .count{font-size:.85rem;font-weight:700;color:var(--sc)}
.note-box{margin-top:32px;background:var(--card);border:2px dashed var(--line);border-radius:18px;padding:18px 20px}
.note-box h2{font-size:1.4rem;margin-bottom:6px}
.note-box ul{margin:6px 0 0;padding-left:20px}

/* subject page */
.subj-head{display:flex;gap:16px;align-items:center;margin:6px 0 20px}
.subj-head .ic{width:72px;height:72px;border-radius:18px;display:grid;place-items:center;flex:none;background:color-mix(in srgb,var(--sub) 16%,var(--card));color:var(--sub)}
.subj-head h1{font-size:clamp(2.2rem,7vw,3rem);font-weight:800}
.lessons{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px 18px;padding:10px 4px 6px 12px}
/* Lesson tickets: the cat you win, a bold cartoon outline and a hard shadow in the subject color */
.lesson-card{position:relative;display:flex;gap:14px;align-items:center;text-decoration:none;color:var(--ink);background:var(--card);border:2.5px solid var(--ticket-ink);border-radius:16px;padding:12px 14px 12px 12px;box-shadow:4px 4px 0 var(--sub)}
.lesson-card:hover{box-shadow:6px 6px 0 var(--sub);transform:translate(-1px,-1px)}
.lesson-card:active{box-shadow:1px 1px 0 var(--sub);transform:translate(2px,2px)}
.lesson-card:focus-visible{outline:3px solid var(--sub);outline-offset:4px}
.lt-num{position:absolute;left:-12px;top:-13px;min-width:32px;height:32px;padding:0 6px;border-radius:16px;background:var(--ticket-ink);color:var(--ticket-on);font-family:var(--display);font-weight:800;font-size:1.05rem;display:grid;place-items:center;border:2.5px solid var(--paper)}
.lt-cat{width:88px;height:88px;flex:none;border-radius:12px;overflow:hidden;position:relative;background:color-mix(in srgb,var(--sub) 14%,#fff)}
.lt-cat img{width:100%;height:100%;object-fit:cover;display:block}
.lt-cat.locked img{opacity:.92}
.lt-cat.locked::after{content:'?';position:absolute;right:5px;bottom:-2px;font-family:var(--display);font-weight:800;font-size:1.7rem;line-height:1.2;color:#F26A1B;text-shadow:2px 2px 0 #fff,-2px -2px 0 #fff,2px -2px 0 #fff,-2px 2px 0 #fff,0 2px 0 #fff,2px 0 0 #fff,0 -2px 0 #fff,-2px 0 0 #fff}
.lt-cat.gold{box-shadow:inset 0 0 0 3px #E7B416}
.lt-cat.none{display:grid;place-items:center;font-size:2.4rem}
.lt-body{display:flex;flex-direction:column;gap:3px;min-width:0}
.lesson-card b{font-family:var(--display);font-size:1.25rem;line-height:1.12}
.lesson-card .goal{color:var(--muted);font-size:.92rem;line-height:1.3}
.lt-note{color:var(--muted);font-size:.85rem}
@media (max-width:420px){.lt-cat{width:76px;height:76px}.lesson-card b{font-size:1.15rem}}
@media (prefers-reduced-motion:reduce){.lesson-card:hover,.lesson-card:active{transform:none}}
.stars{color:var(--star);letter-spacing:.12em;font-size:1.15rem}
.stars .off{color:var(--line)}

/* player */
.player{max-width:760px;margin:0 auto}
.ptop{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.pbar{flex:1;height:14px;border-radius:99px;background:var(--card);border:2px solid var(--line);overflow:hidden}
.pbar i{display:block;height:100%;background:var(--sub);transition:width .3s}
.pcount{font-family:var(--display);font-weight:700;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.qcard{background:var(--card);border:2px solid var(--line);border-radius:20px;padding:22px;display:flex;flex-direction:column;gap:18px}
.q{display:flex;gap:12px;align-items:flex-start}
.q .qt{font-family:var(--display);font-weight:600;font-size:1.45rem;line-height:1.3;text-wrap:pretty}
.q .qt.learn-title{font-weight:800;font-size:1.8rem}
.speak{flex:none;width:44px;height:44px;border-radius:50%;border:2px solid var(--line);background:var(--card);font-size:1.15rem;padding:0;display:grid;place-items:center}
.learn-text{font-size:1.2rem;line-height:1.55;max-width:62ch}
.learn-text p+p{margin-top:10px}
.visual{display:flex;justify-content:center;overflow-x:auto}
.visual svg{max-width:100%;height:auto}
.listen{align-self:center}
.kw{background:color-mix(in srgb,var(--sub) 18%,transparent);border-radius:6px;padding:0 4px;font-weight:700}

.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.choices.one{grid-template-columns:1fr}
.choice{border:3px solid var(--line);background:var(--card);border-radius:16px;padding:14px;min-height:64px;font-family:var(--display);font-size:1.3rem;font-weight:600;display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.25}
.choice:hover:not(:disabled){border-color:var(--sub)}
.choice svg{max-width:100%;height:auto}
.choice.right{border-color:var(--good);background:var(--good-bg)}
.choice.wrong{border-color:var(--bad);background:var(--bad-bg);opacity:.7}

.numwrap{display:flex;flex-direction:column;align-items:center;gap:12px}
.numdisp{min-width:170px;min-height:66px;border:3px solid var(--sub);border-radius:16px;background:var(--card);font-family:var(--display);font-size:2.3rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:8px;padding:0 18px;font-variant-numeric:tabular-nums}
.numdisp .unit{font-size:1.2rem;color:var(--muted)}
.numdisp .ph{color:var(--line)}
.pad{display:grid;grid-template-columns:repeat(3,70px);gap:9px}
.pkey{height:58px;border:2px solid var(--line);border-radius:14px;background:var(--card);font-family:var(--display);font-size:1.55rem;font-weight:700}
.pkey.go{background:var(--sub);color:#fff;border-color:var(--sub)}

.pool{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;min-height:56px;padding:10px;border-radius:14px;background:var(--soft)}
.chip{border:3px solid var(--line);background:var(--card);border-radius:14px;padding:10px 16px;font-family:var(--display);font-size:1.2rem;font-weight:600;line-height:1.2;display:inline-flex;align-items:center;gap:8px}
.chip.sel{border-color:var(--sub);box-shadow:0 0 0 4px color-mix(in srgb,var(--sub) 30%,transparent);transform:translateY(-2px)}
.chip.placed{cursor:default;border-color:var(--good);background:var(--good-bg);font-size:1.05rem;padding:6px 12px}
.bins{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.bin{border:3px dashed var(--line);border-radius:16px;padding:12px;min-height:120px;background:var(--card);display:flex;flex-direction:column;gap:8px;align-items:stretch;text-align:left}
.bin h3{font-size:1.25rem;text-align:center}
.bin .in{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.bin.ready{border-color:var(--sub);border-style:solid}
.slots{display:flex;flex-direction:column;gap:8px}
.slot{display:flex;gap:10px;align-items:center;min-height:52px;border:2px dashed var(--line);border-radius:14px;padding:6px 12px;background:var(--card)}
.slot b{font-family:var(--display);color:var(--sub);font-size:1.3rem;width:1.4em;flex:none}
.slot.filled{border-style:solid;border-color:var(--good);background:var(--good-bg)}
.match{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.match .col{display:flex;flex-direction:column;gap:10px}
.match .chip{justify-content:center;min-height:58px}
.match .chip.done{border-color:var(--good);background:var(--good-bg);cursor:default}

.fb{border-radius:14px;padding:14px 16px;font-size:1.12rem;line-height:1.45}
.fb.good{background:var(--good-bg);border:2px solid var(--good)}
.fb.bad{background:var(--bad-bg);border:2px solid var(--bad)}
.fb.info{background:var(--info-bg);border:2px solid var(--info)}
.fb b{font-family:var(--display)}
.next-row{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
/* Next stays on screen: if it would be below the bottom edge it rides along the bottom (above the iPad home bar) */
.next-row{position:sticky;bottom:calc(10px + env(safe-area-inset-bottom));z-index:20;pointer-events:none}
.next-row > *{pointer-events:auto}.next-row .btn.primary{box-shadow:0 6px 18px rgba(0,0,0,.28)}
.shake{animation:shake .35s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* typing */
.typebox{font-family:var(--mono);font-size:1.9rem;line-height:1.5;letter-spacing:.04em;background:var(--soft);border-radius:14px;padding:14px 18px;word-break:break-word;text-align:center}
.typebox .done{color:var(--good)}
.typebox .cur{background:var(--sub);color:#fff;border-radius:6px}
.typebox .cur.sp{background:color-mix(in srgb,var(--sub) 45%,transparent)}
.typebox .todo{color:var(--muted)}
.typebox .err{background:var(--bad);color:#fff;border-radius:6px}
.tstats{display:flex;gap:18px;justify-content:center;font-family:var(--display);font-weight:700;color:var(--muted)}
.kb{display:flex;flex-direction:column;gap:5px;align-items:center;user-select:none}
.kr{display:flex;gap:4px}
.k{width:clamp(24px,calc((100vw - 110px) / 10),48px);height:clamp(30px,calc((100vw - 90px) / 10),48px);border-radius:8px;border:2px solid var(--line);background:var(--card);display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:clamp(.8rem,3vw,1.05rem);position:relative}
.k.home{border-bottom-width:5px}
.k.space{width:clamp(150px,45vw,260px)}
.k.shift{width:clamp(56px,16vw,90px);font-size:.8rem}
.k.next{background:var(--fc,var(--sub));color:#fff;border-color:var(--fc,var(--sub));transform:translateY(-2px)}
.k.miss{background:var(--bad);color:#fff}
.k[data-f="lp"],.k[data-f="rp"]{--fc:#D6409F}.k[data-f="lr"],.k[data-f="rr"]{--fc:#D97706}.k[data-f="lm"],.k[data-f="rm"]{--fc:#1F9D55}.k[data-f="li"],.k[data-f="ri"]{--fc:#2F6FDC}.k[data-f="th"]{--fc:#6C5CE7}
.fingers{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;font-size:.85rem;color:var(--muted)}
.fingers i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:4px;vertical-align:-1px}
.hidden-input{position:absolute;opacity:0;width:1px;height:1px;left:-9999px}

/* piano */
.piano{position:relative;display:flex;justify-content:center;user-select:none;touch-action:manipulation;margin:0 auto}
.wk{width:clamp(34px,9vw,58px);height:clamp(140px,40vw,200px);border:2px solid var(--ink);border-radius:0 0 10px 10px;background:#fff;color:#1C2846;margin-left:-2px;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;font-family:var(--display);font-weight:800;font-size:1.05rem;position:relative;z-index:1}
.bk{position:absolute;width:clamp(22px,5.6vw,36px);height:clamp(88px,25vw,124px);background:#1C2846;border:2px solid #1C2846;border-radius:0 0 7px 7px;z-index:2;color:#fff;font-size:.7rem;display:flex;align-items:flex-end;justify-content:center;padding-bottom:4px}
.wk.hit,.bk.hit{background:var(--sub);color:#fff}
.wk.glow{background:color-mix(in srgb,var(--star) 55%,#fff)}
.bk.glow{background:#B38200}
.wk.ok{background:var(--good-bg)} .wk.no,.bk.no{background:var(--bad)!important;color:#fff}
.drum{width:180px;height:180px;border-radius:50%;border:6px solid var(--ink);background:radial-gradient(circle at 50% 40%,color-mix(in srgb,var(--sub) 60%,#fff),var(--sub));font-family:var(--display);font-weight:800;font-size:1.6rem;color:#fff;align-self:center;touch-action:manipulation}
.drum:active,.drum.hit{transform:scale(.95)}
.beats{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.beats i{width:22px;height:22px;border-radius:50%;border:3px solid var(--line);display:block}
.beats i.now{border-color:var(--sub);background:color-mix(in srgb,var(--sub) 30%,transparent)}
.beats i.ok{background:var(--good);border-color:var(--good)}
.beats i.miss{background:var(--bad);border-color:var(--bad)}

/* result */
.result{text-align:center;align-items:center}
.bigstars{font-size:3.4rem;letter-spacing:.15em;color:var(--star);line-height:1}
.bigstars .off{color:var(--line)}

/* intro */
.intro .goal{font-size:1.15rem}
.gu{font-size:.95rem;color:var(--muted);border-top:2px dashed var(--line);padding-top:12px}
.gu summary{cursor:pointer;font-weight:700;font-size:.85rem;width:max-content;list-style:none}.gu summary::-webkit-details-marker{display:none}.gu summary::after{content:' ▸'}.gu[open] summary::after{content:' ▾'}.gu p{margin:8px 0 0}

@media (max-width:560px){
  body{font-size:17px}.hero{grid-template-columns:1fr}.hero svg{display:none}
  .qcard{padding:16px}.q .qt{font-size:1.22rem}.choice{font-size:1.12rem;min-height:56px}
  .pad{grid-template-columns:repeat(3,64px)}.pkey{height:54px}
  .typebox{font-size:1.4rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

.kbwrap{display:flex;flex-direction:column;gap:10px;align-items:center;max-width:100%}

.hero2{margin:4px 0 26px;background:var(--card);border:2px solid var(--line);border-radius:22px;overflow:hidden}
.hero2 img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.hero2-text{padding:18px 22px 22px}
.hero2-link{display:block;position:relative;color:inherit;text-decoration:none}
.hero2-link img{transition:transform .25s ease,filter .25s ease}
.hero2-link:hover img,.hero2-link:focus-visible img{filter:brightness(1.05)}
.hero2 h1{font-size:clamp(2.2rem,7vw,3.4rem);font-weight:800}
.hero2 p{font-size:1.15rem;color:var(--muted);margin-top:6px;max-width:56ch}

.subj-pic{flex-direction:column;align-items:stretch;padding:0;overflow:hidden;gap:0}
.subj-pic .sp{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;object-position:center 30%;background:#fff;border-bottom:4px solid var(--sc)}
.subj-pic>div{padding:14px 16px 16px}
.subj-head .sh-pic{width:96px;height:96px;border-radius:20px;object-fit:cover;flex:none;border:3px solid var(--sub);background:#fff}
@media (max-width:560px){.subjects{grid-template-columns:1fr 1fr;gap:10px}.subj-pic>div{padding:10px 12px 12px}.subj-pic b{font-size:1.2rem}.subj-pic span{font-size:.85rem}.subj-head .sh-pic{width:72px;height:72px}}

/* ---------- accounts & cat cards ---------- */
.head-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.user-slot{display:flex;gap:6px;align-items:center}
.hbtn{color:#fff;text-decoration:none;font-family:var(--display);font-weight:700;font-size:.95rem;padding:5px 12px;border-radius:99px;border:2px solid rgba(255,255,255,.35);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.hbtn.hot{background:var(--accent);border-color:var(--accent)}
.hbtn.me{padding:3px 10px 3px 3px}
.hbtn .cnt{font-size:.8rem;opacity:.85}
.hbtn .cc-img.mini,.hbtn .cc-fallback.mini{width:28px;height:28px;border-radius:50%}
@media (max-width:480px){.hbtn .nm{display:none}.brand span{font-size:1.15rem}}
/* small phones with a kid signed in: the cat logo alone, so Parents, Need help? and the kid's cats all fit */
@media (max-width:440px){.head-row .brand span{display:none}.head-row{gap:6px}}
.cc-img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:12px;background:#fff}
.cc-fallback{display:grid;place-items:center;width:100%;aspect-ratio:1;border-radius:12px;background:var(--soft);font-size:2.4rem}
.cc-img.mini,.cc-fallback.mini{width:46px;height:46px;font-size:1.4rem;border-radius:12px;flex:none}
.cc-img.avatar,.cc-fallback.avatar{width:84px;height:84px;border-radius:20px;border:3px solid var(--accent);flex:none}
.binder{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.cat-card{position:relative;display:flex;flex-direction:column;gap:6px;background:var(--card);border:3px solid var(--line);border-radius:16px;padding:8px;text-decoration:none;color:var(--ink);text-align:center;font:inherit}
button.cat-card{cursor:pointer}
.cat-card .cc-name{font-family:var(--display);font-weight:700;font-size:1rem;line-height:1.15}
.cat-card .cc-how{font-size:.78rem;color:var(--muted);line-height:1.25}
.cat-card.locked .cc-img{opacity:.85;background:color-mix(in srgb,var(--accent) 12%,#fff)}
.cat-card.locked::after{content:'?';position:absolute;right:14px;top:8px;font-family:var(--display);font-weight:800;font-size:2rem;color:#F26A1B;text-shadow:2px 2px 0 #fff,-2px -2px 0 #fff,2px -2px 0 #fff,-2px 2px 0 #fff}
.cat-card.locked{overflow:hidden}
.cat-card.locked .cc-fallback{filter:grayscale(1) opacity(.3)}
.cat-card.shiny{border-color:#E7B416;background:linear-gradient(135deg,#FFF6D6,#FFE38A 45%,#FFF6D6);box-shadow:0 0 0 3px rgba(231,180,22,.35),0 6px 18px rgba(231,180,22,.35);color:#1C2846}
.cat-card .cc-gold{position:absolute;top:4px;right:4px;background:#E7B416;color:#1C2846;font-size:.65rem;font-weight:800;padding:2px 6px;border-radius:99px;letter-spacing:.06em}
.cat-card.big{width:min(240px,70vw);margin:0 auto}
.cat-card.big .cc-name{font-size:1.4rem}
.sec{font-size:1.5rem;margin:22px 0 10px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tag{font-size:.8rem;background:var(--accent);color:#fff;padding:3px 10px;border-radius:99px;font-family:var(--body)}
.tag.off{background:var(--line);color:var(--muted)}
.me-head{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin:6px 0 4px}
.me-head h1{font-size:clamp(1.8rem,6vw,2.4rem)}
.me-head #out{margin-left:auto}
.reveals{display:flex;flex-direction:column;gap:18px;width:100%}
.reveal{display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center;padding:14px;border-radius:18px;background:color-mix(in srgb,var(--accent) 10%,var(--card));border:2px dashed var(--accent)}
.reveal.shiny{background:linear-gradient(135deg,#FFF6D6,#FFE38A);border-color:#E7B416;color:#1C2846}
.rv-label{font-family:var(--display);font-weight:800;font-size:1.5rem}
.rv-line{color:inherit;opacity:.85}
.reveal .cat-card{animation:pop 700ms cubic-bezier(.2,1.6,.4,1)}
@keyframes pop{0%{transform:scale(.2) rotate(-12deg);opacity:0}100%{transform:scale(1) rotate(0);opacity:1}}
.reveal.locked .cat-card{animation:none}
.event-banner,.join-banner{display:flex;line-height:1.35;text-align:left;gap:12px;align-items:center;text-decoration:none;color:var(--ink);background:var(--card);border:3px solid #F28A1B;border-radius:18px;padding:12px 14px;margin:0 0 16px}
.event-banner{background:linear-gradient(135deg,color-mix(in srgb,#F28A1B 18%,var(--card)),color-mix(in srgb,#8B55D9 18%,var(--card)))}
.join-banner{border-color:var(--accent)}
.eb-cats{display:flex;flex:none}.eb-cats .cc-img,.eb-cats .cc-fallback{margin-right:-14px;border:2px solid var(--card)}
.eb-go{margin-left:auto;font-family:var(--display);font-weight:800;color:var(--accent);white-space:nowrap}
.acct h1{font-size:clamp(1.8rem,6vw,2.4rem)}
.name-pick{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:420px){.name-pick{grid-template-columns:1fr}}
.name-in{font:inherit;font-size:1.3rem;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);width:100%}
.pin{display:flex;flex-direction:column;align-items:center;gap:12px}
.pin-slots{display:flex;gap:8px}
.pin-slots span{width:54px;height:54px;border-radius:14px;border:3px dashed var(--line);display:grid;place-items:center;font-size:1.9rem}
.pin-slots span.on{border-style:solid;border-color:var(--accent)}
.pin-grid{display:grid;grid-template-columns:repeat(3,72px);gap:10px}
.pin-grid button{height:66px;border-radius:16px;border:2px solid var(--line);background:var(--card);font-size:2.1rem}
.pin-grid button:active{transform:scale(.95)}
.code-card{display:grid;gap:4px;padding:14px 16px;border-radius:16px;border:3px solid var(--accent);background:var(--card)}
.code-card b{font-family:var(--display);font-size:1.5rem}.code-card .pics{font-size:2rem;letter-spacing:.15em}
.code-card small{color:var(--muted)}
.name-msg{font-size:.95rem;min-height:1.4em;margin-top:4px}
.name-msg.ok{color:var(--good);font-weight:700}
.name-msg.bad{color:var(--bad);font-weight:700}
#useown{white-space:nowrap;flex:none}

.rv-bubble{position:relative;background:var(--card);color:var(--ink);border:3px solid var(--ink);border-radius:18px;padding:10px 16px;font-family:var(--display);font-weight:800;font-size:1.35rem;line-height:1.2;max-width:420px}
.rv-bubble::after{content:'';position:absolute;left:22%;bottom:-14px;width:22px;height:22px;background:var(--card);border-right:3px solid var(--ink);border-bottom:3px solid var(--ink);transform:rotate(45deg)}
.rv-stage{display:flex;align-items:flex-end;justify-content:center;gap:4px;width:100%}
.rv-kid{height:230px;width:auto;flex:none;animation:kidIn 600ms cubic-bezier(.2,1.4,.4,1)}
.rv-stage .cat-card.big{width:min(200px,46vw);margin:0;align-self:center}
@keyframes kidIn{0%{transform:translateX(-40px);opacity:0}100%{transform:none;opacity:1}}
@media (max-width:420px){.rv-kid{height:180px}.rv-bubble{font-size:1.15rem}}

.human-wrap{margin-top:8px}.human{min-height:65px}

/* ---------- classes ---------- */
.ctabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin:2px -16px 8px;padding:0 16px}
.ctabs::-webkit-scrollbar{display:none}
.ctab{flex:none;text-decoration:none;color:#fff;font-family:var(--display);font-weight:800;font-size:1.05rem;padding:6px 14px;border-radius:99px;border:2px solid var(--tc);background:color-mix(in srgb,var(--tc) 30%,transparent);white-space:nowrap}
.ctab:hover,.ctab.on{background:var(--tc)}
.class-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 16px}
@media (max-width:560px){.class-cards{grid-template-columns:1fr}}
.class-card{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);background:color-mix(in srgb,var(--sc) 12%,var(--card));border:3px solid var(--sc);border-radius:18px;padding:12px 14px;line-height:1.3}
.class-card b{font-family:var(--display);font-size:1.35rem;display:block}.class-card small{color:var(--muted)}
.class-card .eb-go{color:var(--sc)}
.cc-bag{font-size:2.2rem;flex:none}
.class-head{display:flex;gap:16px;align-items:center;margin:6px 0 16px}
.class-head h1{font-size:clamp(2.2rem,7vw,3rem);font-weight:800}
.ch-badge{width:84px;height:84px;border-radius:20px;display:grid;place-items:center;font-size:3rem;flex:none;background:color-mix(in srgb,var(--sub) 18%,var(--card));border:3px solid var(--sub)}
.focus-box{background:var(--card);border:2px solid var(--line);border-left:6px solid var(--sub);border-radius:16px;padding:12px 18px;margin:0 0 8px}
.focus-box h2{font-size:1.3rem;margin:0 0 4px}.focus-box ul{margin:0;padding-left:20px}.focus-box li{margin:2px 0}
.classmates{margin-top:24px}
.cm-box{background:var(--card);border:2px solid var(--line);border-radius:18px;padding:14px 16px}
.cm-join{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.cm-join .name-in{max-width:240px;text-transform:uppercase;letter-spacing:.08em}
.cm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:10px}
.cm-kid{display:flex;gap:10px;align-items:center;text-align:left;border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:14px;padding:8px 10px;font:inherit;cursor:pointer}
.cm-kid:hover,.cm-kid.on{border-color:var(--sub)}
.cm-kid b{display:block;font-family:var(--display);font-size:1.05rem;line-height:1.1;word-break:break-all}.cm-kid small{color:var(--muted)}
.cm-kid.me{background:color-mix(in srgb,var(--sub) 10%,var(--card))}
.cm-code{font-family:var(--mono);font-weight:700;letter-spacing:.1em;background:var(--soft);padding:2px 8px;border-radius:8px}
.grade-pick{display:flex;gap:8px;flex-wrap:wrap;margin:-6px 0 16px}
.grade-pick .gp{font:inherit;font-family:var(--display);font-weight:800;font-size:1.05rem;padding:8px 16px;border-radius:99px;border:3px solid var(--sub);background:var(--card);color:var(--ink);cursor:pointer}
.grade-pick .gp.on{background:var(--sub);color:#fff}
.events-box{background:var(--card);border:2px solid var(--line);border-left:6px solid var(--star);border-radius:16px;padding:12px 16px;margin:0 0 12px}
.events-box h2{font-size:1.3rem;margin:0 0 6px}
.ev-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.ev-list li>a,.ev-list li>div{display:flex;gap:10px;align-items:flex-start;padding:6px 8px;border-radius:12px;text-decoration:none;color:var(--ink);background:var(--soft)}
.ev-list li>a{border:2px solid var(--sub)}
.ev-go{display:block;margin-top:2px;font-weight:800;color:var(--sub);font-size:.85rem}
.ev-ic{font-size:1.5rem;line-height:1.2;flex:none;width:1.8rem;text-align:center}
.ev-main{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.ev-main b{font-weight:700}.ev-main small{color:var(--muted)}
.ev-date{font-family:var(--display);font-weight:700;color:var(--muted);font-size:.95rem}
.ev-soon{background:var(--accent);color:#fff;border-radius:99px;padding:0 8px;font-size:.8rem;margin-left:4px}
.ev-weekly{margin:8px 0 0;font-size:.95rem;color:var(--muted)}
@media (min-width:760px){.ev-list{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.eb-cats .cc-img:nth-child(n+2),.eb-cats .cc-fallback:nth-child(n+2){display:none}}

.lt-wait{display:block;font-size:.82rem;color:var(--muted);font-weight:700;margin-top:2px}

.lt-plus{display:inline-block;margin-top:4px;font-family:var(--display);font-weight:800;font-size:.8rem;color:#8a5a00;background:#FFE7A3;border-radius:99px;padding:2px 10px}
.lesson-card.plus-locked .lt-cat{filter:grayscale(.6);opacity:.75}
.plus-sec{margin-top:22px}

/* My Cats: filter buttons + size switch */
.cat-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin:14px 0 4px;padding:8px 0}
.cat-filters{display:flex;gap:6px;flex-wrap:wrap}
.cat-filters button,.cat-zoom button{border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:7px 12px;font:inherit;font-weight:700;font-size:.95rem;cursor:pointer}
.cat-filters button .n{display:inline-block;min-width:1.4em;padding:0 5px;border-radius:99px;background:var(--line);font-size:.8rem}
.cat-filters button.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.cat-filters button.on .n{background:rgba(255,255,255,.25)}
.cat-zoom{display:flex;gap:6px;align-items:center;font-weight:700;font-size:.95rem;white-space:nowrap}
.cat-zoom button{padding:5px 10px;min-width:42px}
.cat-zoom button:disabled{opacity:.35;cursor:default}
.cat-empty{font-size:1.1rem;margin:16px 0}
.cat-card[hidden],.cat-grp[hidden]{display:none!important}
.binder[data-size="s"]{grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:8px}
.binder[data-size="s"] .cat-card{padding:4px;border-width:2px;border-radius:12px;gap:2px}
.binder[data-size="s"] .cc-name{font-size:.72rem}
.binder[data-size="s"] .cc-how{display:none}
.binder[data-size="s"] .cc-gold{font-size:.5rem;padding:1px 4px}
.binder[data-size="s"] .cat-card.locked::after{font-size:1.3rem;right:6px;top:2px}
.binder[data-size="l"]{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}
.binder[data-size="l"] .cc-name{font-size:1.2rem}
/* Phone turned sideways: let the header scroll away so there's room for more cats */
@media (orientation:landscape) and (max-height:500px){.site-head{position:static}}

/* Chess Mulligan offer on the lesson result screen */
.mull-ask{border:3px solid #E7B416;background:linear-gradient(135deg,#FFF6D6,#FFE9A8);color:#1C2846;border-radius:16px;padding:14px 16px;margin:10px 0;display:flex;flex-direction:column;gap:8px}
.mull-ask p{margin:0}
.mull-t{font-family:var(--display);font-weight:800;font-size:1.2rem}
.mull-ask .btn:not(.primary){background:#fff;color:#1C2846}

.cheer-bar{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin:8px 0}
.cheer-b{border:2px solid var(--line);background:var(--card);border-radius:999px;padding:3px 10px;font-size:1.25rem;cursor:pointer;display:flex;gap:4px;align-items:center}
.cheer-b b{font-size:.85rem;color:var(--ink)}
.cheer-b.on{border-color:#2E6BE6;background:#E6EEFF;cursor:default}
.cheer-got{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-weight:700}

.cat-search{display:flex;align-items:center;gap:4px;border:2px solid var(--line);border-radius:999px;padding:2px 10px;background:var(--card);flex:1;min-width:150px;max-width:260px}
.cat-search input{border:none;outline:none;background:transparent;color:var(--ink);font:inherit;font-weight:700;width:100%;padding:5px 0}

/* ---------- site themes (assets/themes.js) ---------- */
.tab .paw{display:none}
@media (prefers-color-scheme: light){body.themed{--paper:var(--th-paper);--accent:var(--th-accent)}}
/* v56 "one scene" layout (Oct 15 2026): the theme art fills the whole window and stays put; the page floats over it on a frosted panel */
body.themed{background:var(--th-band);isolation:isolate}
body.themed::before{content:"";position:fixed;inset:0;z-index:-2;background:var(--th-img) center 40%/cover no-repeat,var(--th-band);pointer-events:none}
body.themed::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(0,0,0,.28) 0,rgba(0,0,0,0) 26%,rgba(0,0,0,0) 72%,rgba(0,0,0,.22) 100%)}
html:has(body.themed){scroll-padding-top:var(--stick,120px)}
body.themed .site-head{background:transparent;color:var(--th-ink);position:sticky;z-index:20}
body.themed .site-head .inner{position:relative;max-width:1100px;margin:0 auto;padding:12px 20px 10px;gap:8px;background:none}
body.themed .site-head .inner{box-sizing:border-box;width:min(1100px,calc(100% - 32px));margin:8px auto 0;padding:10px 14px 10px;border-radius:22px;
  background:color-mix(in srgb,var(--th-band) 80%,transparent);backdrop-filter:blur(12px) saturate(1.1);-webkit-backdrop-filter:blur(12px) saturate(1.1);
  border:1px solid rgba(255,255,255,.35);box-shadow:0 8px 26px rgba(10,15,35,.22)}
body.themed main.wrap{box-sizing:border-box;width:min(1100px,calc(100% - 32px));max-width:none;margin:14px auto 40px;padding:22px 24px 48px;border-radius:26px;
  background:color-mix(in srgb,var(--paper) 93%,transparent);backdrop-filter:blur(14px) saturate(1.15);-webkit-backdrop-filter:blur(14px) saturate(1.15);
  border:1px solid rgba(255,255,255,.65);box-shadow:0 12px 40px rgba(10,15,35,.22)}
body.themed .lesson-card{padding:16px 16px 16px 14px}
body.themed main.wrap :is(h2,section,[id]){scroll-margin-top:var(--stick,120px)}
body.themed .lesson-card,body.themed .events-box,body.themed .spt-box,body.themed .ln-box,body.themed .focus-box,body.themed .class-head,body.themed .subj,body.themed .pa-card{box-shadow:0 6px 18px rgba(20,24,60,.10)}
body.themed .lesson-card:hover{box-shadow:0 10px 26px rgba(20,24,60,.18)}
body.themed .brand{font-size:clamp(1.9rem,4.4vw,3.1rem);color:var(--th-ink);text-shadow:0 2px 0 rgba(0,0,0,.25),0 0 18px rgba(0,0,0,.25);-webkit-text-stroke:1px rgba(0,0,0,.12)}
body.themed.th-classroom .brand,body.themed.th-valentine .brand,body.themed.th-easter .brand{text-shadow:0 2px 0 #fff,0 0 16px rgba(255,255,255,.9)}
body.themed .brand svg{width:clamp(40px,6vw,64px);height:auto;filter:drop-shadow(0 2px 4px rgba(0,0,0,.25))}
body.themed .ctabs{margin-top:2px}
body.themed .tabs{margin:auto 0 0;padding:8px 10px 6px;border-radius:22px;gap:4px;justify-content:space-between;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);box-shadow:0 6px 18px rgba(0,0,0,.22)}
body.themed .tab{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 6px 6px;border-radius:14px;border-bottom:0;min-width:58px;font-size:.98rem}
body.themed .tab .paw{display:block;width:40px;height:40px;filter:drop-shadow(0 2px 2px rgba(0,0,0,.3));transition:transform .15s}
body.themed .tab .paw svg{width:100%;height:100%;display:block}
body.themed .tab:hover .paw{transform:translateY(-3px) rotate(-6deg)}
body.themed .tab .te{display:none}
body.themed .tab.on .tn{box-shadow:inset 0 -4px 0 var(--th-accent);padding-bottom:2px}
body.themed .tab.on{background:rgba(255,255,255,.14)}
/* tab bar styles */
body.thnav-light .tabs{background:rgba(255,255,255,.93);border:3px solid #fff}
body.thnav-light .tab{color:#1E2452}
body.thnav-dark .tabs{background:rgba(14,18,48,.82);border:2px solid rgba(255,255,255,.25)}
body.thnav-wood .tabs{background:linear-gradient(180deg,#8B5A2B,#6B3F1A);border:3px solid #4A2A10}
body.thnav-chalk .tabs{background:#23332A;border:5px solid #9A6A36}
body.thnav-glass .tabs{background:rgba(255,255,255,.22);border:2px solid rgba(255,255,255,.6)}
body.thnav-rose .tabs{background:linear-gradient(180deg,#B8173F,#8E0F2E);border:2px solid rgba(255,255,255,.4)}
body.thnav-green .tabs{background:linear-gradient(180deg,#2E7D32,#1B5E20);border:2px solid rgba(255,255,255,.35)}
body.thnav-red .tabs{background:linear-gradient(180deg,#B3261E,#7F1A14);border:2px solid rgba(255,255,255,.35)}
body.themed:not(.thnav-light) .tab{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.4)}
/* header buttons on light art */
body.thnav-light .site-head .hbtn,body.thnav-light .site-head .bear-head:not(.bear-help),body.thnav-light .site-head .spell-head{background:rgba(255,255,255,.92);color:#1E2452;border-color:#C9D5E6}
/* holiday name ribbon on the art */
.th-ribbon{position:absolute;right:24px;left:auto;top:auto;bottom:calc(var(--tabsh,96px) + 22px);font-family:var(--display);font-weight:800;font-size:clamp(1rem,2vw,1.45rem);line-height:1;color:#FFE27A;
  padding:.18em .7em .12em;border-radius:999px;background:linear-gradient(180deg,rgba(90,40,10,.92),rgba(60,25,5,.92));border:3px solid rgba(255,226,122,.85);transform:rotate(-4deg);
  text-shadow:0 2px 0 #7A3B0A;box-shadow:0 6px 16px rgba(0,0,0,.3);pointer-events:none;white-space:nowrap}
body.th-valentine .th-ribbon{background:linear-gradient(180deg,#C2123F,#8E0F2E);color:#fff;border-color:#FFD1DC;text-shadow:0 2px 0 #6B0A22}
body.th-winter .th-ribbon,body.th-hanukkah .th-ribbon{background:linear-gradient(180deg,#2F6FDC,#173A8A);color:#fff;border-color:#CFE2FF;text-shadow:0 2px 0 #0E2560}
body.th-stpatrick .th-ribbon,body.th-easter .th-ribbon{background:linear-gradient(180deg,#2E7D32,#1B5E20);color:#fff;border-color:#C8F2C9;text-shadow:0 2px 0 #0E3B12}
body.th-christmas .th-ribbon,body.th-cinco .th-ribbon,body.th-july4 .th-ribbon{background:linear-gradient(180deg,#C62828,#8E1B1B);color:#fff;border-color:#FFE0E0;text-shadow:0 2px 0 #5E0E0E}
@media (max-width:700px){
  body.themed .site-head .inner{width:calc(100% - 12px);margin-top:6px;padding:7px 8px 7px;gap:6px;border-radius:18px}
  body.themed main.wrap{width:calc(100% - 12px);margin:8px auto 24px;padding:14px 12px 36px;border-radius:20px}
  body.themed .lesson-card{padding:14px 14px 14px 12px}
  body.themed .site-head .ctabs{gap:6px}
  body.themed .tabs{-webkit-mask:linear-gradient(90deg,#000 calc(100% - 34px),transparent);mask:linear-gradient(90deg,#000 calc(100% - 34px),transparent)}
  body.themed::before{background-position:62% 40%}
  body.themed .tabs{justify-content:flex-start;margin:auto -4px 0;padding:6px}
  body.themed .tab{min-width:56px;font-size:.86rem;padding:3px 4px 5px}
  body.themed .tab .paw{width:30px;height:30px}
  .th-ribbon{display:none}
}
@media (orientation:landscape) and (max-height:500px){body.themed .site-head{position:static}}
/* owner theme picker */
.thp-h{margin:6px 0 0;font-size:1.05rem}
.thp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}
.thp-card{display:flex;flex-direction:column;gap:4px;padding:6px;border:3px solid var(--line);border-radius:16px;background:var(--card);text-align:center;font-family:var(--display);font-weight:700}
.thp-card.on{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 30%,transparent)}
.thp-card{-webkit-appearance:none;appearance:none;align-items:stretch}
.thp-img{display:flex;align-items:center;justify-content:center;width:100%;min-height:56px;aspect-ratio:2.2/1;flex:none;box-sizing:border-box;border-radius:10px;background-size:cover;background-position:center 42%;color:#fff;font-size:1.4rem}
.thp-auto{display:flex;gap:10px;align-items:flex-start}
.thp-auto input{width:22px;height:22px;margin-top:3px}
.pa-hero{margin:0 0 16px}
.pa-hero img{display:block;width:100%;height:auto;max-height:420px;object-fit:cover;object-position:center 40%;border-radius:22px;border:3px solid var(--line);box-shadow:0 8px 22px rgba(29,35,64,.14)}
/* themed header: solid, readable buttons and class chips over busy art */
body.themed .site-head .hbtn,body.themed .site-head .par-head,body.themed .site-head .spell-head{background:rgba(18,22,58,.82);color:#fff;border-color:rgba(255,255,255,.7);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
body.themed .site-head .hbtn.hot{background:var(--th-accent);border-color:#fff}
body.themed .ctab{background:rgba(18,22,58,.78);color:#fff;border-color:var(--tc,#fff);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
body.themed .ctab.on{background:var(--tc,#7C4DFF)}
body.thnav-light .site-head .hbtn,body.thnav-light .site-head .par-head,body.thnav-light .site-head .spell-head,body.thnav-light .ctab{background:rgba(255,255,255,.94);color:#1E2452;border-color:#C9D5E6}
body.thnav-light .site-head .hbtn.hot{background:var(--th-accent);color:#fff}
body.thnav-glass .tabs{background:rgba(8,52,110,.72);border:2px solid rgba(255,255,255,.55)}


/* v57: merged class tab (JT's Class + a classroom) links the owner to that classroom's tools page */
.pc-toolslink{display:flex;align-items:center;gap:10px;margin:0 0 12px;padding:8px 14px;border-radius:14px;border:2px dashed var(--line);background:var(--card);color:var(--ink);text-decoration:none;font-size:.95rem}
.pc-toolslink:hover{border-color:var(--accent)}
.pc-toolslink span:last-child{margin-left:auto;font-size:1.4rem;color:var(--muted)}

/* v57 topics (branches) inside a subject */
.lt-branch{display:inline-block;align-self:flex-start;margin:2px 0 0;padding:1px 8px;border-radius:99px;font-size:.74rem;font-weight:800;font-family:var(--display);color:var(--sub);background:color-mix(in srgb,var(--sub) 12%,transparent);border:1px solid color-mix(in srgb,var(--sub) 35%,transparent)}
.branch-pick{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 4px}
.branch-pick .bp{border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:99px;padding:4px 12px;font:700 .9rem var(--display);cursor:pointer}
.branch-pick .bp.on{border-color:var(--sub);background:var(--sub);color:#fff}

/* v57 minimize Coming up / This week boxes */
.cb-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.cb-head h2{margin:0!important}
.cbox .cb-mini{display:none;margin:4px 0 0;font-weight:700;font-size:.92rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cbox.is-min .cb-mini{display:block}.cbox.is-min .cb-full{display:none}
.cbox:not(.is-min) .cb-full{margin-top:6px}
@media (max-width:520px){.ln-box.is-min .ln-how,.spt-box.is-min .spt-how{font-size:0;gap:0;padding:4px}.ln-box.is-min .ln-how span,.spt-box.is-min .spt-how span{font-size:.6rem}}
/* v58: on phones a shrunk Sports / Lunch box shows just ▶ on its video button so the title fits */
@media (max-width:520px){
  .spt-box.is-min .spt-how,.ln-box.is-min .ln-how{font-size:0;gap:0;padding:4px}
  .spt-box.is-min .spt-how span,.ln-box.is-min .ln-how span{font-size:.7rem;width:26px;height:26px}
}

/* v58: home-screen (standalone) mode on iPhone: keep the header below the clock/battery bar */
.site-head{padding-top:env(safe-area-inset-top,0px)}
body.themed .site-head{padding-top:env(safe-area-inset-top,0px)}
body.themed .site-head::after{content:"";position:fixed;left:0;right:0;top:0;height:env(safe-area-inset-top,0px);background:var(--th-band);z-index:30;pointer-events:none}
/* keep the scrolling tab row from nudging the page 1px sideways on phones */
.site-head{overflow-x:clip}

/* Oct 20 2026: last week's (and older) class lessons fold up; tap to open */
.old-week{margin:14px 0;border:3px solid var(--line);border-radius:18px;background:var(--card)}
.old-week>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;font-family:var(--display);font-weight:800;font-size:1.15rem}
.old-week>summary::-webkit-details-marker{display:none}
.old-week>summary::after{content:'＋';font-size:1.2rem;color:var(--muted)}
.old-week[open]>summary::after{content:'−'}
.old-week .ow-n{margin-left:auto;font-size:.9rem;font-weight:700;color:var(--muted)}
.old-week>.lessons{padding:0 12px 12px}
.old-week>.ow-wk{margin:6px 16px 8px;font-family:var(--display);font-size:1.05rem;color:var(--muted)}