/* Numling Quest. Layout idea: a maths exercise book (squared paper) with sticker-style cards and hard ink shadows. */
@font-face{font-family:'Fredoka';font-weight:600;font-style:normal;font-display:swap;src:url(fonts/fredoka-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Fredoka';font-weight:700;font-style:normal;font-display:swap;src:url(fonts/fredoka-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:'Nunito';font-weight:700;font-style:normal;font-display:swap;src:url(fonts/nunito-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:'Nunito';font-weight:800;font-style:normal;font-display:swap;src:url(fonts/nunito-latin-800-normal.woff2) format('woff2')}

:root{
  --paper:#EAF4F0; --grid:#CDE3DB; --ink:#1B2A49; --ink2:#51607F; --white:#FFFFFF;
  --coral:#FF6B57; --coral-soft:#FFDAD3; --sun:#FFC83D; --sun-soft:#FFF0B8;
  --leaf:#2FAE7E; --leaf-soft:#CDF1E2; --sky:#4DA3FF; --sky-soft:#D8EAFF; --grape:#8A63D2;
  --sh:4px 4px 0 var(--ink);
  --fd:'Fredoka',ui-rounded,'Avenir Next Rounded',system-ui,'PingFang HK','PingFang TC','Noto Sans TC','Microsoft JhengHei',sans-serif;
  --fb:'Nunito',system-ui,-apple-system,'Segoe UI','PingFang HK','PingFang TC','Noto Sans TC','Microsoft JhengHei',sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--paper);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:26px 26px;
  color:var(--ink);font-family:var(--fb);font-size:18px;line-height:1.4;font-weight:700;
  padding-top:max(18px,env(safe-area-inset-top,0px));
  padding-bottom:calc(48px + env(safe-area-inset-bottom,0px));
  padding-left:max(16px,env(safe-area-inset-left,0px));
  padding-right:max(16px,env(safe-area-inset-right,0px));
  min-height:100vh;
  overscroll-behavior-y:none;
  -webkit-user-select:none;user-select:none;
}
.wrap{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:22px}
h1,h2,h3{font-family:var(--fd);margin:0;font-weight:700;line-height:1.1;text-wrap:balance}
p{margin:0}
button{font:inherit;color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
textarea{font:inherit}
:focus-visible{outline:4px solid var(--sky);outline-offset:3px}
.num{font-family:var(--fd);font-weight:600;font-variant-numeric:tabular-nums}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:54px;padding:8px 24px;border:3px solid var(--ink);border-radius:999px;background:var(--white);font-family:var(--fd);font-weight:600;font-size:20px;box-shadow:3px 3px 0 var(--ink);transition:transform .08s,box-shadow .08s}
.btn:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--ink)}
.btn:disabled{opacity:.45;cursor:default}
.btn.primary{background:var(--sun)}
.btn.good{background:var(--leaf-soft)}
.btn.small{min-height:46px;padding:6px 16px;font-size:17px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border:3px solid var(--ink);border-radius:50%;background:var(--white);box-shadow:3px 3px 0 var(--ink);padding:0}
.icon-btn:active{transform:translate(3px,3px);box-shadow:none}
svg.ic{width:24px;height:24px;flex:none}

/* top bar */
.top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.logo{font-family:var(--fd);font-weight:700;font-size:34px;letter-spacing:-.5px;margin-right:auto;display:flex;align-items:baseline;gap:2px}
.logo b{color:var(--coral)}
.chip{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:6px 14px;border:3px solid var(--ink);border-radius:999px;background:var(--white);font-family:var(--fd);font-weight:600;font-size:19px;box-shadow:3px 3px 0 var(--ink)}
.chip.fire{background:var(--sun-soft)}
.chip.ok{background:var(--leaf-soft);font-size:15px;padding:4px 12px}
.sync{font-size:13px;color:var(--ink2);font-weight:700;width:100%;text-align:right;margin-top:-6px;min-height:1em}

/* trainer card */
.trainer{display:grid;grid-template-columns:1fr auto;gap:10px 18px;align-items:center;background:var(--white);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:14px 18px}
.t-name{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.name-btn{background:none;border:0;padding:6px 10px;border-radius:10px;text-decoration:underline dotted;text-underline-offset:5px;font-family:var(--fd);font-size:28px;font-weight:700}
.name-in{font-family:var(--fd);font-size:26px;font-weight:600;border:3px solid var(--ink);border-radius:12px;padding:4px 10px;width:min(240px,100%);color:var(--ink);background:var(--white);-webkit-user-select:text;user-select:text}
.xp{grid-column:1/-1;display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ink2)}
.bar{flex:1;height:16px;border:3px solid var(--ink);border-radius:999px;background:var(--paper);overflow:hidden}
.bar i{display:block;height:100%;background:var(--leaf);border-radius:999px}

/* daily */
.daily{display:grid;grid-template-columns:1fr auto;gap:14px 20px;align-items:center;background:var(--coral);border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:18px 22px}
.daily h2{font-size:32px}
.daily p{font-size:18px;margin-top:4px}
.week{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap}
.wd{display:flex;flex-direction:column;align-items:center;gap:4px;font-family:var(--fd);font-size:14px;font-weight:600;width:38px}
.wd i{display:block;width:30px;height:30px;border-radius:50%;border:3px solid var(--ink);background:rgba(255,255,255,.55)}
.wd.on i{background:var(--sun)}
.wd.star i{background:var(--leaf-soft);box-shadow:inset 0 0 0 4px var(--sun)}
.wd.today span{text-decoration:underline;text-underline-offset:3px}

/* sections and unit cards */
.sec-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.sec-head h2{font-size:30px}
.sec-head span{color:var(--ink2);font-size:16px}
.units{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.unit{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;background:var(--white);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:12px 12px 14px;transition:transform .08s,box-shadow .08s;position:relative}
.unit:active{transform:translate(4px,4px);box-shadow:0 0 0 var(--ink)}
.unit:nth-child(4n+1){background:var(--sky-soft)}
.unit:nth-child(4n+2){background:var(--sun-soft)}
.unit:nth-child(4n+3){background:var(--leaf-soft)}
.unit:nth-child(4n+4){background:var(--coral-soft)}
.unit .mon-svg{width:112px;height:112px}
.u-code{position:absolute;top:10px;left:12px;font-family:var(--fd);font-size:13px;background:var(--ink);color:var(--white);padding:1px 9px;border-radius:999px}
.u-name{font-family:var(--fd);font-weight:600;font-size:21px;line-height:1.15;min-height:48px;display:flex;align-items:center}
.u-mon{font-size:14px;color:var(--ink2)}
.u-bar{width:100%;height:14px;border:3px solid var(--ink);border-radius:999px;background:var(--white);overflow:hidden;margin-top:2px}
.u-bar i{display:block;height:100%;background:var(--sun)}
.u-power{font-size:13px;color:var(--ink2)}
.pips{display:flex;gap:7px;margin:2px 0 4px}
.pip{width:15px;height:15px;transform:rotate(45deg);border:2.5px solid var(--ink);background:var(--white);border-radius:3px}
.pip.on{background:var(--sun)}
.mastered{font-family:var(--fd);font-size:13px;background:var(--ink);color:var(--sun);padding:2px 10px;border-radius:999px}

/* unit page */
.u-hero{display:flex;align-items:center;gap:18px;background:var(--white);border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:14px 18px;flex-wrap:wrap}
.u-hero .mon-svg{width:140px;height:140px;flex:none}
.u-hero .u-info{flex:1;min-width:200px;display:flex;flex-direction:column;gap:8px}
.u-hero h2{font-size:30px}
.skill-list{display:flex;flex-direction:column;gap:12px}
.skill{display:flex;align-items:center;gap:14px;background:var(--white);border:3px solid var(--ink);border-radius:18px;box-shadow:3px 3px 0 var(--ink);padding:10px 14px;text-align:left;width:100%}
.skill:active{transform:translate(3px,3px);box-shadow:none}
.skill .s-name{font-family:var(--fd);font-weight:600;font-size:21px;line-height:1.15;flex:1}
.skill .pips{margin:0}
.go{padding:6px 20px;border:3px solid var(--ink);border-radius:999px;background:var(--sun);font-family:var(--fd);font-weight:600;font-size:18px;white-space:nowrap}
.skill.done .go{background:var(--leaf-soft)}

/* round */
.round{max-width:760px}
.r-top{display:flex;align-items:center;gap:12px}
.r-title{font-family:var(--fd);font-weight:600;font-size:22px;flex:1;line-height:1.15}
.r-count{font-family:var(--fd);font-weight:600;font-size:20px;background:var(--white);border:3px solid var(--ink);border-radius:999px;padding:4px 16px}
.battle{display:grid;grid-template-columns:96px 1fr 96px;align-items:center;gap:10px}
.fighter .mon-svg,.fighter svg{width:96px;height:96px;display:block}
.me.bob svg{animation:bob 2.2s ease-in-out infinite}
.me.miss svg{animation:shake .4s}
.foe svg{transition:opacity .4s}
.foe.hit svg{animation:shake .4s}
.hp{display:flex;flex-direction:column;gap:6px}
.hp-label{font-family:var(--fd);font-size:15px;display:flex;justify-content:space-between;color:var(--ink2)}
.segs{display:grid;grid-template-columns:repeat(10,1fr);gap:3px;border:3px solid var(--ink);border-radius:10px;background:var(--white);padding:3px}
.segs i{height:14px;border-radius:4px;background:var(--paper)}
.segs i.on{background:var(--coral)}
.qcard{background:var(--white);border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:20px 22px;display:flex;flex-direction:column;gap:16px;align-items:stretch}
.q-tag{font-size:14px;color:var(--ink2);font-family:var(--fd)}
.q-body{font-size:25px;line-height:1.4;font-weight:700}
.q-body b{font-family:var(--fd);font-weight:600}
.q-body .tag{display:inline-block;border:3px solid var(--ink);border-radius:10px;padding:0 10px;background:var(--sun-soft)}
.fig{display:flex;justify-content:center;align-items:center;gap:10px;margin:12px 0 8px;flex-wrap:wrap}
.fig svg{max-width:100%;height:auto}
.fig.two{gap:22px}
.fig figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:2px;font-family:var(--fd);font-size:18px}
.fig .arrow{font-size:34px;font-family:var(--fd)}
.big-words{font-family:var(--fd);font-weight:600;font-size:30px;background:var(--sun-soft);border:3px dashed var(--ink);border-radius:14px;padding:10px 14px;margin-top:10px}
.seq{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center;margin-top:10px;font-size:34px;font-family:var(--fd);font-weight:600}
.seq .comma{margin-left:-4px}
.eq{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;justify-content:center;margin:10px 0 2px;font-size:36px;font-family:var(--fd);font-weight:600}
.eq .num{font-size:36px}
.blank,.slot{display:inline-flex;align-items:center;justify-content:center;min-width:76px;height:54px;border:3px dashed var(--ink);border-radius:12px;background:var(--sun-soft);font-family:var(--fd);font-size:30px;vertical-align:middle}
.cmp{display:flex;align-items:center;justify-content:center;gap:16px;font-size:38px;margin:10px 0 6px}
.cmp .slot{min-width:64px}
.vert{border-collapse:collapse;margin:12px auto 4px;font-family:var(--fd);font-weight:600;font-size:42px;line-height:1.1}
.vert td{width:1.05em;text-align:center;padding:2px 4px}
.vert td.sg{width:1.2em;color:var(--coral)}
.vert tr:nth-last-child(2) td:not(.sg){border-bottom:4px solid var(--ink)}
.vert .ans-row td{padding-top:6px}
.vert .blank{width:100%;min-width:0;height:50px}
.blocks{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:flex-end;margin:12px 0 8px}
.b-thou{width:74px;height:74px;border:2.5px solid var(--ink);border-radius:5px;background-color:#6FC8FF;background-image:linear-gradient(var(--ink) 1px,transparent 1px),linear-gradient(90deg,var(--ink) 1px,transparent 1px);background-size:7.4px 7.4px;box-shadow:5px -5px 0 #4DA3FF,5px -5px 0 2.5px var(--ink)}
.b-flat{width:58px;height:58px;border:2.5px solid var(--ink);border-radius:4px;background-color:#8FD3FF;background-image:linear-gradient(var(--ink) 1px,transparent 1px),linear-gradient(90deg,var(--ink) 1px,transparent 1px);background-size:5.8px 5.8px}
.b-rod{width:12px;height:58px;border:2.5px solid var(--ink);border-radius:3px;background-color:#8FD3FF;background-image:linear-gradient(var(--ink) 1px,transparent 1px);background-size:100% 5.8px}
.b-ones{display:flex;flex-wrap:wrap;gap:4px;width:70px}
.b-one{display:block;width:12px;height:12px;border:2.5px solid var(--ink);border-radius:2px;background:#8FD3FF}
.dots-row{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;margin-top:10px}
.dots-row figure{margin:0;display:flex;flex-direction:column;gap:4px;font-size:14px;color:var(--ink2);font-family:var(--fd)}
svg.dots{border:3px solid var(--ink);border-radius:12px;background:var(--paper);display:block}
svg.dots.small{width:96px;height:auto}
svg.dots.big{width:min(100%,340px);height:auto}
svg.tray,svg.dotgrid{display:block;margin:10px auto 6px}
.bags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:10px 0}
svg.clock{display:block}
svg.ruler{display:block;width:100%;max-width:520px;height:auto;margin:10px auto 0}
.money{display:flex;flex-wrap:wrap;gap:6px 4px;align-items:center;justify-content:center;margin:12px 0 6px}
.money.mini{justify-content:flex-start;margin:0}
.money svg.coin{width:44px;height:44px}
.money.mini svg.coin{width:36px;height:36px}
.money svg.note{height:auto}
.money.mini svg.note{width:64px}
.opt-l{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:3px solid var(--ink);border-radius:50%;background:var(--sun-soft);font-family:var(--fd);font-size:17px;flex:none}
.picto,.tally-t{border:3px solid var(--ink);border-radius:16px;padding:10px 14px;background:var(--paper);margin:10px 0 12px}
.p-title{font-family:var(--fd);font-weight:700;font-size:20px;margin-bottom:6px}
.p-row{display:flex;align-items:center;gap:10px;min-height:38px;border-top:2px solid var(--grid)}
.p-lab{font-family:var(--fd);font-weight:600;font-size:18px;width:96px;flex:none}
.p-icons{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.pic-i{width:30px;height:30px}
.p-key{margin-top:8px;font-family:var(--fd);font-size:17px;display:flex;align-items:center;gap:6px;color:var(--ink2)}
.p-key .pic-i{width:24px;height:24px}
.picto.v .p-cols{display:flex;gap:14px;align-items:flex-end;justify-content:space-around}
.picto.v .p-col{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:60px}
.picto.v .p-icons{flex-direction:column-reverse;flex-wrap:nowrap;gap:2px;min-height:40px;justify-content:flex-start}
.picto.v .p-lab{width:auto;font-size:16px;text-align:center}
.tally-t .p-icons svg.tally{height:36px;width:auto}

.ans{align-self:center;min-width:180px;min-height:74px;border:3px solid var(--ink);border-radius:16px;background:var(--sun-soft);font-family:var(--fd);font-weight:700;font-size:44px;text-align:center;padding:2px 18px;display:flex;align-items:center;justify-content:center;letter-spacing:2px;font-variant-numeric:tabular-nums;gap:6px}
.ans .ph{opacity:.35}
.ans .u{font-size:22px;letter-spacing:0;color:var(--ink2)}
.caret{display:inline-block;width:3px;height:40px;background:var(--ink);margin-left:3px;animation:blink 1s steps(1) infinite}
.pad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:380px;width:100%;align-self:center}
.pad button{min-height:64px;border:3px solid var(--ink);border-radius:16px;background:var(--white);font-family:var(--fd);font-weight:600;font-size:30px;box-shadow:3px 3px 0 var(--ink);padding:0}
.pad button:active{transform:translate(3px,3px);box-shadow:none}
.pad .fn{background:var(--sky-soft)}
.pad .go-btn{background:var(--sun);font-size:21px}
.opts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.opts.n3{grid-template-columns:repeat(3,1fr)}
.opts.n2.fixed{grid-template-columns:repeat(2,1fr)}
.opt{min-height:68px;border:3px solid var(--ink);border-radius:16px;background:var(--white);font-family:var(--fd);font-weight:600;font-size:26px;padding:8px 14px;box-shadow:3px 3px 0 var(--ink);line-height:1.15;text-wrap:balance;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
.opt:active{transform:translate(3px,3px);box-shadow:none}
.opt.h{flex-direction:column;align-items:center;gap:4px;padding:8px}
.opt.h .opt-l{align-self:flex-start}
.opt.h .money{margin:0}
.opt.right{background:var(--leaf-soft);box-shadow:3px 3px 0 var(--leaf)}
.opt.wrong{background:var(--coral-soft)}
.opt:disabled{cursor:default}
.opts .opt.long{grid-column:1/-1}
.tools{display:flex;gap:10px;flex-wrap:wrap}
.hint{background:var(--sky-soft);border:3px solid var(--ink);border-radius:16px;padding:12px 16px;font-size:18px}
.fb{border:3px solid var(--ink);border-radius:20px;padding:14px 18px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--sh)}
.fb.ok{background:var(--leaf-soft)}
.fb.bad{background:var(--coral-soft)}
.fb strong{font-family:var(--fd);font-size:26px}
.fb p{font-size:18px}
.modal-lite{background:var(--white);border:3px solid var(--ink);border-radius:18px;padding:14px 18px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;box-shadow:var(--sh)}
.modal-lite span{flex:1;min-width:180px}

/* result */
.result{max-width:660px}
.res-card{background:var(--white);border:3px solid var(--ink);border-radius:26px;box-shadow:var(--sh);padding:26px 22px;display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}
.res-card h2{font-size:34px}
.res-mon svg{width:190px;height:190px}
.res-mon.evolve{animation:pop 1s ease-out}
.res-mon.evolve svg{filter:drop-shadow(0 0 14px var(--sun))}
.score{font-family:var(--fd);font-weight:700;font-size:64px;line-height:1}
.score small{font-size:30px;color:var(--ink2)}
.evo{font-family:var(--fd);font-size:24px;background:var(--sun);border:3px solid var(--ink);border-radius:14px;padding:8px 16px}
.dots-res{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.dots-res i{width:22px;height:22px;border-radius:50%;border:3px solid var(--ink);background:var(--coral-soft)}
.dots-res i.y{background:var(--leaf)}
.actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.note{color:var(--ink2);font-size:16px}
.review{display:flex;flex-direction:column;gap:8px;align-items:stretch;width:100%;text-align:left}
.review .skill{box-shadow:none}

/* guide, backup */
.guide{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.g-card{background:var(--white);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:14px;cursor:pointer}
.g-card:focus-visible{outline:3px solid var(--coral);outline-offset:2px}
.g-card h3{font-size:20px;margin-bottom:8px}
.g-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.g-cell{display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center;font-size:13px;font-family:var(--fd);font-weight:600}
.g-cell svg{width:86px;height:86px}
.g-cell.locked svg{filter:brightness(0);opacity:.18}
.g-cell.locked span{color:var(--ink2)}
.panel{background:var(--white);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:16px 18px;display:flex;flex-direction:column;gap:10px}
.panel h3{font-size:22px}
.panel textarea{width:100%;min-height:96px;border:3px solid var(--ink);border-radius:12px;padding:8px 10px;font-size:14px;font-weight:700;font-family:ui-monospace,Menlo,monospace;background:var(--paper);color:var(--ink);resize:vertical;-webkit-user-select:text;user-select:text}
.msg{font-family:var(--fd);font-size:17px;min-height:1.3em}
.msg.good{color:#13794f}
.msg.bad{color:#b3261e}

@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-7px)}40%{transform:translateX(7px)}60%{transform:translateX(-5px)}80%{transform:translateX(5px)}}
@keyframes blink{50%{opacity:0}}
@keyframes pop{0%{transform:scale(.6) rotate(-6deg)}60%{transform:scale(1.12) rotate(3deg)}100%{transform:scale(1) rotate(0)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

@media (min-width:900px){
  .round{max-width:860px}
  .q-body{font-size:28px}
  .opt{font-size:28px}
}
@media (max-width:560px){
  body{font-size:17px}
  .logo{font-size:28px}
  .battle{grid-template-columns:70px 1fr 70px}
  .fighter .mon-svg,.fighter svg{width:70px;height:70px}
  .q-body{font-size:22px}
  .eq,.eq .num{font-size:30px}
  .opts.n3{grid-template-columns:1fr}
  .opt{font-size:21px;min-height:60px}
  .daily{grid-template-columns:1fr}
  .daily h2{font-size:27px}
  .qcard{padding:16px}
  .units{grid-template-columns:repeat(2,1fr);gap:12px}
  .unit .mon-svg{width:92px;height:92px}
  .u-name{font-size:18px}
  .skill{flex-wrap:wrap}
  .u-hero .mon-svg{width:110px;height:110px}
  .vert{font-size:36px}
  .p-lab{width:74px;font-size:16px}
}

/* ---- Challenge Quest ---- */
.skill .s-name small{display:block;font-family:var(--fb);font-weight:700;font-size:14px;color:var(--ink2);margin-top:2px}
.skill.chal{background:linear-gradient(135deg,var(--sun-soft),var(--white) 60%);border-color:var(--ink)}
.skill.chal .go{background:var(--coral);color:var(--white)}
.skill.chal.done .go{background:var(--leaf-soft);color:var(--ink)}
.skill.locked{background:#F1F3F6;box-shadow:none;cursor:default;opacity:.75}
.skill.locked .go{background:#DDE2EA;color:var(--ink2)}
.skill.locked:active{transform:none}
.u-chal{font-family:var(--fd);font-weight:600;font-size:13px;color:var(--ink);background:var(--sun);border:2px solid var(--ink);border-radius:999px;padding:0 10px}
.u-chal.off{background:#E8ECF2;color:var(--ink2);border-color:#B9C2D3}

.cards{display:flex;gap:10px;justify-content:center;margin:10px 0 2px;flex-wrap:wrap}
.card{display:inline-flex;align-items:center;justify-content:center;width:56px;height:70px;border:3px solid var(--ink);border-radius:12px;background:var(--sky-soft);box-shadow:3px 3px 0 var(--ink);font-family:var(--fd);font-weight:700;font-size:36px}

.bars{display:flex;flex-direction:column;gap:8px;margin:12px 0 4px}
.b-row{display:flex;align-items:center;gap:10px}
.b-lab{width:74px;font-family:var(--fd);font-weight:600;font-size:16px;text-align:right;flex:none}
.b-wrap{display:flex;height:38px;max-width:calc(100% - 110px);border:3px solid var(--ink);border-radius:8px;overflow:hidden;background:var(--white);flex:none}
.b-row{--bw:100%}
.b-seg{display:flex;align-items:center;justify-content:center;font-style:normal;font-family:var(--fd);font-weight:600;font-size:17px;border-right:3px solid var(--ink);min-width:0;overflow:hidden}
.b-seg:last-child{border-right:0}
.b-seg.c1{background:var(--sky-soft)}
.b-seg.c2{background:var(--sun-soft)}
.b-seg.c3{background:var(--leaf-soft)}
.b-seg.q{background:var(--white);border-style:dashed;font-size:22px;color:var(--coral)}
.b-tot{font-family:var(--fd);font-weight:700;font-size:24px;color:var(--coral)}

.st{display:flex;align-items:center;gap:10px;font-size:20px;line-height:1.3;margin-top:10px;padding:8px 12px;border-radius:14px}
.st-no{flex:none;width:30px;height:30px;border-radius:50%;border:3px solid var(--ink);background:var(--white);font-family:var(--fd);font-weight:700;font-size:16px;display:inline-flex;align-items:center;justify-content:center}
.st-text{flex:1}
.st.done{background:#F3F6F9;color:var(--ink2);font-size:17px}
.st.done .st-ans{color:var(--ink);font-size:20px}
.st.done .st-ok,.st.done .st-bad{flex:none;width:22px;height:22px;border-radius:50%;border:3px solid var(--ink);display:inline-block}
.st.done .st-ok{background:var(--leaf)}
.st.done .st-bad{background:var(--coral)}
.st.now{background:var(--sun-soft);border:3px solid var(--ink);font-weight:800}
.st.now .st-no{background:var(--sun)}
.st-of{flex:none;font-family:var(--fd);font-size:13px;color:var(--ink2)}
@media(max-width:520px){.b-lab{width:58px;font-size:14px}.st-of{display:none}}

/* ---- tile-tap questions (spelling, word order) ---- */
.tile-ans{align-self:stretch;min-height:74px;border:3px solid var(--ink);border-radius:16px;background:var(--sun-soft);display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;padding:8px 12px;font-family:var(--fd);font-weight:700;font-size:30px}
.tile-ans .ph{font-family:var(--fb);font-size:17px;color:var(--ink2);font-weight:700}
.tile-ans.good{background:var(--leaf-soft)}
.tile-ans.bad{background:var(--coral-soft)}
.tiles{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:14px}
.tile{min-width:56px;min-height:60px;padding:6px 14px;border:3px solid var(--ink);border-radius:14px;background:var(--white);box-shadow:3px 3px 0 var(--ink);font-family:var(--fd);font-weight:700;font-size:28px}
.tile:active{transform:translate(3px,3px);box-shadow:none}
.tile:disabled{opacity:.25;box-shadow:none}
.tile.on{min-width:0;min-height:0;display:inline-block;padding:2px 12px;border-radius:10px;background:var(--sky-soft);box-shadow:none;font-size:28px}
.tile-act{display:flex;gap:10px;justify-content:center;margin-top:14px;flex-wrap:wrap}
.tile-act .btn:disabled{opacity:.4}

/* ---- reading passage and word cards ---- */
.passage{background:var(--sun-soft);border:3px solid var(--ink);border-radius:14px;padding:12px 16px;font-size:22px;line-height:1.5;margin:6px 0}
.passage b{font-family:var(--fd);font-weight:600}
.emo{font-size:56px;line-height:1.1;text-align:center;letter-spacing:6px}
.emo.sm{font-size:40px}
.emo-opt{font-size:46px;line-height:1}
.sentence{font-size:28px;line-height:1.5}
.sentence .gap{display:inline-block;min-width:90px;border-bottom:4px solid var(--coral);text-align:center;color:var(--coral)}

/* ---- Quest Academy hub ---- */
.daily-btns{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.subjects{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.subj{background:var(--white);border:3px solid var(--ink);border-radius:22px;box-shadow:5px 5px 0 var(--ink);padding:14px}
.subj.s-math{background:var(--sky-soft)}.subj.s-sci{background:var(--leaf-soft)}.subj.s-eng{background:var(--sun-soft)}.subj.s-chi{background:#FCE4EC}
.s-top{display:flex;gap:12px;align-items:center}
.s-top .mon-svg{width:84px;height:84px;flex:none}
.s-top h3{font-family:var(--fd);font-size:28px;margin:0}
.s-top p{margin:2px 0 0;font-size:16px;color:var(--ink2);line-height:1.3}
.gchips{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.gchip{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:64px;padding:6px;border:3px solid var(--ink);border-radius:16px;background:var(--white);box-shadow:3px 3px 0 var(--ink);font-family:var(--fd)}
.gchip b{font-size:24px;line-height:1}
.gchip span{font-size:14px;color:var(--ink2);font-family:var(--fb);font-weight:800}
.gchip:active{transform:translate(3px,3px);box-shadow:none}
.gchip.last{background:var(--sun)}
.gchip.off{opacity:.4;box-shadow:none;border-style:dashed}
.gswitch{display:flex;gap:8px;flex-wrap:wrap}
.gchip.sm{min-height:44px;min-width:64px;padding:6px 14px;flex-direction:row;border-radius:14px}
.gchip.sm b{font-size:20px}

/* Learn pages and weak spots (v2.2) */
.skill-row{display:flex;gap:10px;align-items:stretch}.skill-row .skill{flex:1;width:auto}
.learn-btn{flex:none;border:3px solid var(--ink);border-radius:18px;background:var(--sun,#FFC83D);box-shadow:3px 3px 0 var(--ink);padding:0 12px;font-family:var(--fd);font-weight:600;font-size:15px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:70px;color:var(--ink);cursor:pointer}
.learn-btn span{font-size:22px;line-height:1}
.learn-idea{flex-direction:row;align-items:center;gap:16px}.learn-idea h3{margin:0 0 4px}.learn-idea p{margin:0;font-size:18px;line-height:1.4}
.learn-pal{width:96px;flex:none}.learn-pal svg{width:100%;height:auto}
.ex h3{margin:0;font-family:var(--fd)}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chips span{border:2px solid var(--ink);border-radius:12px;padding:4px 12px;background:#fff;font-weight:700}
.weak{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#FFF1D6;border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:14px 18px}
.weak h3{margin:0;font-family:var(--fd);font-size:20px}.weak p{margin:2px 0 0;font-size:15px;line-height:1.35}

/* coins & rewards */
.coin-chip{cursor:pointer;background:var(--sun-soft)}
.coin-chip:active{transform:translate(3px,3px);box-shadow:none}
.coin,.cardic{flex:none;display:inline-block;vertical-align:middle}
.rbox{display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#FFF0B8,#FFDAD3);border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:14px 18px}
.rbox.ready{background:linear-gradient(135deg,#FFE27A,#CDF1E2);animation:rbpulse 1.6s ease-in-out infinite}
@keyframes rbpulse{50%{transform:scale(1.015)}}
.rb-ic{flex:none;display:flex;align-items:center;justify-content:center}
.rb-ic.spin svg{animation:cardspin 1.4s ease-in-out infinite}
@keyframes cardspin{0%,100%{transform:rotate(-8deg) scale(1)}50%{transform:rotate(8deg) scale(1.12)}}
.rb-mid{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}
.rb-mid h2{font-size:24px}.rb-mid p{font-size:17px}
.rb-mid .bar{flex:none;height:18px;border:3px solid var(--ink);border-radius:999px;background:#fff;overflow:hidden}
.rb-mid .bar i{display:block;height:100%;background:var(--sun)}
.rbox .btn{flex:none}
.earn{background:linear-gradient(135deg,#FFF0B8,#fff);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:14px 18px;display:flex;flex-direction:column;gap:8px;text-align:left;width:100%}
.earn-head{display:flex;align-items:center;gap:10px;font-family:var(--fd);font-weight:700;font-size:24px}
.earn-tot{font-size:40px;animation:cpop .6s cubic-bezier(.2,1.6,.4,1) both}
@keyframes cpop{from{transform:scale(.2);opacity:0}to{transform:scale(1);opacity:1}}
.earn ul,.log,.earn-rules{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.earn li{display:flex;justify-content:space-between;gap:10px;border-bottom:2px dashed #D6C98A;padding:2px 0;opacity:0;animation:cslide .4s ease-out forwards}
@keyframes cslide{from{transform:translateX(-18px);opacity:0}to{transform:none;opacity:1}}
.log li{display:flex;justify-content:space-between;gap:10px;border-bottom:2px dashed var(--grid);padding:2px 0}
.log b.neg{color:var(--coral)}
.earn-rules li{font-size:16px}
.rw-bal{align-items:center;text-align:center;background:linear-gradient(135deg,#FFF0B8,#fff)}
.rw-big{display:flex;align-items:center;gap:14px;font-size:64px;line-height:1}
.rw-list{display:flex;flex-direction:column;gap:12px}
.rw-item{display:flex;align-items:center;gap:14px;background:#fff;border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:12px 16px}
.rw-item.ok{background:var(--leaf-soft)}
.rw-t{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.rw-t h3{font-size:22px}
.rw-t .bar{flex:none;height:18px;border:3px solid var(--ink);border-radius:999px;background:#fff;overflow:hidden}
.rw-t .bar i{display:block;height:100%;background:var(--sun)}
.need{font-family:var(--fd);font-weight:600;color:var(--ink2);white-space:nowrap}
.album{display:flex;flex-wrap:wrap;gap:12px}
.alb{display:flex;align-items:center;gap:6px;font-size:13px;line-height:1.2;width:150px}
.rw-confirm,.rw-done{align-items:center;text-align:center}
.rw-done h2{font-size:34px}
.pin{align-items:center;text-align:center}
.pin-dots{display:flex;gap:14px;margin:6px 0}
.pin-dots i{width:22px;height:22px;border:3px solid var(--ink);border-radius:50%;background:#fff}
.pin-dots i.on{background:var(--ink)}
.pin-pad{display:grid;grid-template-columns:repeat(3,84px);gap:12px;justify-content:center}
.pin-pad .btn{min-height:64px;padding:4px;font-size:26px}
.pin .msg{min-height:24px}
.p-edit{display:flex;flex-direction:column;gap:10px}
.p-row{display:flex;gap:8px;align-items:center}
.p-row input{border:3px solid var(--ink);border-radius:12px;padding:8px 10px;font:inherit;font-size:18px;background:#fff;color:var(--ink);-webkit-user-select:text;user-select:text;min-width:0}
.p-row input[data-rw=name]{flex:1}
.p-row input[data-rw=cost]{width:90px;text-align:center}
@media (max-width:560px){.rbox{flex-wrap:wrap}.rbox .btn{width:100%}.pin-pad{grid-template-columns:repeat(3,72px)}}

/* animated lessons */
body.lv-open{overflow:hidden}
.lv{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;gap:10px;background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:26px 26px;padding:max(12px,env(safe-area-inset-top)) max(14px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left))}
.lv-top{display:flex;align-items:center;gap:12px;max-width:900px;width:100%;margin:0 auto;flex:none}
.lv-ti{display:flex;flex-direction:column;min-width:0}.lv-ti b{font-family:var(--fd);font-size:22px;line-height:1.1}.lv-sub{font-size:15px;color:var(--ink2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lv-prog{flex:none;height:14px;border:3px solid var(--ink);border-radius:999px;background:#fff;overflow:hidden;max-width:900px;width:100%;margin:0 auto}
.lv-prog i{display:block;height:100%;width:0;background:var(--leaf);transition:width .5s}
.lv-board{flex:1;min-height:0;overflow:auto;-webkit-overflow-scrolling:touch;width:100%;max-width:900px;margin:0 auto;padding:2px 6px 8px 2px}
.lv-card{position:relative;background:#fff;border:3px solid var(--ink);border-radius:24px;box-shadow:var(--sh);padding:20px 22px;min-height:100%;display:flex;flex-direction:column;gap:14px}
.lv-card.in{animation:lvin .45s ease-out}
@keyframes lvin{from{transform:translateY(16px);opacity:0}to{transform:none;opacity:1}}
.lv-tag{align-self:flex-start;border:3px solid var(--ink);border-radius:999px;background:var(--sun-soft);padding:2px 16px;font-family:var(--fd);font-weight:600;font-size:19px}
.lv-tag.turn{background:var(--coral-soft)}
.lv-idea{display:flex;gap:16px;align-items:center;font-size:29px;line-height:1.4}
.lv-bulb{font-size:54px;animation:lvbulb 1.6s ease-in-out infinite}
@keyframes lvbulb{50%{transform:scale(1.15) rotate(-6deg)}}
.lv-title{display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center;margin:auto 0}
.lv-title h2{font-size:42px}.lv-title p{font-size:22px}
.lv-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:24px;font-family:var(--fd);font-weight:600}
.lv-list li{border:3px solid var(--ink);border-radius:14px;padding:4px 18px;background:var(--sky-soft)}
.lv-stars{font-size:52px;letter-spacing:8px}
.lv-bonus{font-family:var(--fd);font-weight:700;color:#B27700;font-size:26px!important}
.lv-q{font-size:28px}.lv-q2{font-size:25px}
.lv-step{display:flex;flex-direction:column;gap:12px;border-top:3px dashed var(--grid);padding-top:12px}
.lv-chips{gap:10px}.lv-chips span{font-size:22px;padding:6px 16px;border-width:3px;transition:transform .2s,background .2s}
.lv-chips span.say{background:var(--sun-soft);transform:scale(1.08)}
.lv-chips span.good{background:var(--leaf-soft);border-color:var(--leaf);transform:scale(1.08)}
.lv-chips span.dim{opacity:.4}
.lv-host{display:flex;flex-wrap:wrap;gap:12px}
.lv-opt{font-size:24px;min-height:60px}
.lv-opt.good{background:var(--leaf-soft);border-color:var(--leaf)}
.lv-opt.bad{background:var(--coral-soft);opacity:.7}
.lv-ans{animation:cpop .5s cubic-bezier(.2,1.5,.4,1) both}
.pop{display:inline-block;animation:popin .45s cubic-bezier(.2,1.5,.4,1) both}
div.pop,li.pop{display:block}
@keyframes popin{from{transform:scale(.3);opacity:0}to{transform:none;opacity:1}}
.em{display:inline-block}
.em.hit{animation:emhit .6s ease-out both;filter:drop-shadow(0 0 6px #FFC83D)}
@keyframes emhit{0%{transform:scale(1)}40%{transform:scale(1.6) rotate(-8deg)}100%{transform:scale(1.12)}}
.lv-spark{position:absolute;left:50%;top:40%;pointer-events:none}
.lv-spark i{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--sun);border:2px solid var(--ink);animation:lvsp 1s ease-out forwards}
@keyframes lvsp{from{transform:rotate(var(--a)) translateX(0) scale(1);opacity:1}to{transform:rotate(var(--a)) translateX(120px) scale(.3);opacity:0}}
.lv-teach{flex:none;display:flex;gap:12px;align-items:flex-end;max-width:900px;width:100%;margin:0 auto}
.lv-pal{flex:none;width:112px;display:flex;align-items:flex-end}
.lv-pal svg{width:100%;height:auto;overflow:visible;transform-origin:50% 100%}
.lv-pal.idle svg{animation:lvidle 2.6s ease-in-out infinite}
.lv-pal.talk svg{animation:lvtalk .42s ease-in-out infinite alternate}
.lv-pal.cheer svg{animation:lvcheer .6s ease-in-out infinite}
.lv-pal.think svg{animation:lvthink 1.4s ease-in-out infinite}
@keyframes lvidle{50%{transform:translateY(-4px)}}
@keyframes lvtalk{from{transform:scale(1,1)}to{transform:scale(1.04,.96) translateY(-2px)}}
@keyframes lvcheer{0%,100%{transform:translateY(0)}40%{transform:translateY(-16px) rotate(-5deg)}70%{transform:translateY(-6px) rotate(4deg)}}
@keyframes lvthink{0%,100%{transform:rotate(0)}50%{transform:rotate(-7deg)}}
.lv-bubble{position:relative;flex:1;min-width:0;background:#fff;border:3px solid var(--ink);border-radius:22px;box-shadow:3px 3px 0 var(--ink);padding:10px 16px;min-height:80px;max-height:32vh;overflow:auto;display:flex;align-items:center}
.lv-bubble:before{content:"";position:absolute;left:-12px;bottom:22px;width:18px;height:18px;background:#fff;border-left:3px solid var(--ink);border-bottom:3px solid var(--ink);transform:rotate(45deg)}
.lv-cap{font-size:22px;line-height:1.35;font-weight:800}
.lv-cap .w{color:#9099B5;transition:color .12s}.lv-cap .w.on{color:var(--ink)}
.lv-cap.big{font-size:54px;font-family:var(--fd);width:100%;text-align:center}
.lv-ctl{flex:none;display:flex;justify-content:center;align-items:center;gap:12px}
.lv-ctl .icon-btn:disabled{opacity:.35}
.icon-btn.big{width:68px;height:68px;background:var(--sun)}
.lv-end{justify-content:center;margin-top:10px}
.lesson-cta{display:flex;align-items:center;gap:14px;background:linear-gradient(135deg,#D8EAFF,#CDF1E2);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:12px 18px}
.lesson-cta .lc-t{flex:1;display:flex;flex-direction:column;gap:2px}.lesson-cta h3{font-size:22px}.lesson-cta p{font-size:16px;color:var(--ink2)}
.lesson-cta .watched{color:#1B8A5F;font-weight:800}
.learn-watch{margin-left:0}
@media (max-height:600px){.lv-pal{width:64px}.lv-card{padding:12px 14px}.lv-idea{font-size:22px}.lv-q{font-size:22px}.lv-cap{font-size:18px}.lv-bubble{min-height:56px;max-height:30vh}}
@media (max-width:560px){.lv-pal{width:76px}.lv-idea{font-size:23px;flex-direction:column;text-align:center}.lv-q{font-size:23px}.lv-cap{font-size:19px}.lv-title h2{font-size:32px}}
@media (prefers-reduced-motion:reduce){.lv-pal svg,.lv-bulb,.pop,.lv-card.in{animation:none!important}}
.lv-board{display:flex;flex-direction:column}
.lv-card{min-height:0;margin:10px 0 auto;width:100%}
.lv-card .emo{font-size:58px;line-height:1.35;text-align:center;letter-spacing:4px}
.lv-card .emo.sm{font-size:48px}
.lv-pal{width:150px}
@media (max-height:700px){.lv-pal{width:70px}.lv-card .emo{font-size:36px}}
@media (max-width:560px){.lv-pal{width:84px}.lv-card .emo{font-size:40px}}

/* v2.9.12: Quest Class videos removed — the animated lesson is the only way to learn now. */

/* Boop mascot, achievements, report */
.boop{width:100%;height:100%;display:block}
.boop-card{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#D8EAFF,#E8F7F0);border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:10px 16px}
.bc-b{width:112px;flex:none;height:128px}
.bc-t{flex:1;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.bubble{position:relative;background:#fff;border:3px solid var(--ink);border-radius:18px;padding:10px 14px;font-size:18px;font-weight:700;line-height:1.3}
.bubble:before{content:"";position:absolute;left:-12px;top:22px;border:8px solid transparent;border-right:12px solid var(--ink);border-left:0}
.bubble:after{content:"";position:absolute;left:-7px;top:24px;border:6px solid transparent;border-right:9px solid #fff;border-left:0}
.bc-btns{display:flex;gap:10px;flex-wrap:wrap}
.dotn{display:inline-block;min-width:22px;height:22px;line-height:22px;border-radius:11px;background:var(--coral);color:#fff;font-size:14px;text-align:center;margin-left:4px;padding:0 5px}
.flash{display:flex;gap:12px;align-items:center;background:linear-gradient(135deg,#FFF0B8,#FFDAD3);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:10px 16px}
.fl-b{width:80px;height:92px;flex:none}.flash h3{font-size:22px;margin-bottom:4px}
.fl-list{display:flex;gap:8px;flex-wrap:wrap}.fl-i{display:inline-flex;align-items:center;gap:6px;background:#fff;border:2px solid var(--ink);border-radius:14px;padding:4px 10px;font-weight:800}.fl-i i{font-style:normal;font-size:22px}
.stamp-today{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.stamp{background:#fff;border:3px dashed #9FB2C8;border-radius:18px;padding:10px 6px;text-align:center;display:flex;flex-direction:column;gap:4px;align-items:center;color:var(--ink2)}
.stamp .s-ic{font-size:38px;filter:grayscale(1);opacity:.4;line-height:1}
.stamp b{font-size:15px}.stamp small{font-size:12px;line-height:1.2}
.stamp.on{border:3px solid var(--ink);background:var(--sun-soft);box-shadow:var(--sh);color:var(--ink);transform:rotate(-2deg)}
.stamp.on .s-ic{filter:none;opacity:1}
.cal{background:#fff;border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:12px 14px}
.cal-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.cal-h h3{font-size:22px}
.cal-g{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.cal-w{text-align:center;font-weight:800;color:var(--ink2);font-size:14px}
.cal-c{min-height:62px;border:2px solid #DCE8E3;border-radius:12px;padding:3px 4px;display:flex;flex-direction:column;gap:2px;background:#FAFDFC}
.cal-c.empty{border:0;background:none}.cal-c.fut{opacity:.45}
.cal-c .cn{font-size:13px;font-weight:800;color:var(--ink2)}
.cal-c .cs{display:flex;flex-wrap:wrap;gap:1px;font-size:14px;line-height:1}
.stp{filter:grayscale(1);opacity:.25}.stp.on{filter:none;opacity:1}
.cal-c.has{background:#fff;border-color:var(--sky)}
.cal-c.full{background:var(--sun-soft);border-color:var(--sun)}
.cal-c.today{outline:3px solid var(--coral);outline-offset:1px}
.b-g{margin:14px 4px 6px;font-size:18px;color:var(--ink2)}
.medals{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.medal{background:#fff;border:3px solid #C9D6DF;border-radius:18px;padding:10px 8px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--ink2);position:relative}
.medal .m-ic{width:58px;height:58px;border-radius:50%;background:#E5ECF1;display:flex;align-items:center;justify-content:center;font-size:30px;filter:grayscale(1)}
.medal b{font-size:15px;color:var(--ink)}.medal small{font-size:12px;line-height:1.2}.medal em{font-style:normal;font-size:12px;font-weight:800;color:#1B8A5F}
.medal .m-bar{width:80%;height:8px;border-radius:4px;background:#E5ECF1;overflow:hidden;border:1.5px solid #B6C5D0}.medal .m-bar i{display:block;height:100%;background:var(--sky)}
.medal.on{border-color:var(--ink);box-shadow:var(--sh);color:var(--ink)}
.medal.on .m-ic{background:radial-gradient(circle,#FFF0B8,#FFC83D);border:3px solid var(--ink);filter:none}
.medal.new:after{content:"NEW";position:absolute;top:-8px;right:-6px;background:var(--coral);color:#fff;font-weight:800;font-size:12px;border-radius:10px;padding:2px 8px;border:2px solid var(--ink)}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.tile{background:#fff;border:3px solid var(--ink);border-radius:18px;box-shadow:var(--sh);padding:10px 12px;display:flex;flex-direction:column}
.tile b{font-family:var(--fd);font-size:34px;line-height:1.1}.tile b i{font-style:normal;font-size:18px;color:var(--ink2)}.tile small{font-size:13px;color:var(--ink2);font-weight:700}
.rep-card{background:#fff;border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:12px 16px}
.rep-card h3{font-size:22px;margin-bottom:6px}.rep-card.good{background:#F0FAF5}.rep-card.bad{background:#FFF5F2}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:720px){.two{grid-template-columns:1fr}.stamp-today{grid-template-columns:repeat(3,1fr)}.boop-card{flex-wrap:wrap}}
.srow{display:flex;align-items:center;gap:10px;padding:7px 0;border-top:2px solid #EEF3F1}.srow:first-of-type{border-top:0}
.srow>div{flex:1;display:flex;flex-direction:column}.srow small{color:var(--ink2);font-size:13px}
.acc{font-family:var(--fd);font-size:20px}.acc.g{color:#1B8A5F}.acc.r{color:#D6402D}
.chart{height:170px;display:flex;align-items:flex-end;gap:5px;padding-top:18px}
.ch-c{flex:1;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:2px}
.ch-b{width:100%;border-radius:6px 6px 2px 2px;min-height:4px;border:2px solid var(--ink)}
.ch-n{font-size:12px;font-weight:800;min-height:14px}.ch-d{font-size:12px;color:var(--ink2);font-weight:700}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;border:2px solid var(--ink);vertical-align:-2px}.dot.g{background:var(--leaf)}.dot.y{background:var(--sun)}.dot.r{background:var(--coral)}
.u-g{margin:10px 0 4px;color:var(--ink2);font-size:16px}
.urow{display:flex;align-items:center;gap:10px;padding:5px 0;border-top:2px solid #EEF3F1}
.urow .un{flex:0 0 38%;font-weight:800;font-size:15px}.ubar{flex:1;height:12px;border-radius:6px;background:#E5ECF1;border:2px solid var(--ink);overflow:hidden}.ubar i{display:block;height:100%;background:var(--sky)}
.urow .ua{width:48px;text-align:right;font-weight:800}
.chip2{font-size:12px;font-weight:800;border-radius:10px;padding:3px 8px;border:2px solid var(--ink);white-space:nowrap}
.chip2.strong{background:var(--leaf-soft)}.chip2.ok{background:var(--sun-soft)}.chip2.weak{background:var(--coral-soft)}.chip2.new{background:#EEF3F1;color:var(--ink2)}
.rep-pre{white-space:pre-wrap;background:#F4F9FF;border:2px solid var(--ink);border-radius:12px;padding:10px;font-size:14px}
.boop3d{width:100%;height:100%;object-fit:contain;display:block;filter:drop-shadow(0 4px 0 rgba(27,42,73,.08));-webkit-user-drag:none;user-select:none}
.bc-b{width:150px;height:150px}.fl-b{width:100px;height:100px}
.bc-b .boop3d{animation:boopbob 3.2s ease-in-out infinite}
@keyframes boopbob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@media(prefers-reduced-motion:reduce){.bc-b .boop3d{animation:none}}
/* assignments and quiz */
.asg-list{display:flex;flex-direction:column;gap:10px}
.asg{display:flex;align-items:center;gap:12px;background:#fff;border:3px solid var(--ink);border-radius:18px;box-shadow:var(--sh);padding:10px 14px}
.asg-m{width:56px;flex:none}.asg-t{flex:1;display:flex;flex-direction:column;gap:2px}.asg-t h3{font-size:20px}.asg-s{font-size:14px;color:var(--ink2);font-weight:700}
.due{font-size:14px;font-weight:800;color:#1B8A5F}.due.soon{color:#C77700}.due.late{color:#D6402D}
.asg.done{background:#F0FAF5;box-shadow:none}.asg-sc{font-family:var(--fd);font-size:24px}.asg-sc.g{color:#1B8A5F}.asg-sc.r{color:#D6402D}
.chk-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:6px;margin-top:10px}
.chk{display:flex;gap:8px;align-items:center;font-weight:700;font-size:16px;background:#F4F9FF;border:2px solid #CFE0F0;border-radius:12px;padding:8px 10px}.chk input{width:22px;height:22px}
.qz-bar{height:14px;border-radius:7px;border:3px solid var(--ink);background:#fff;overflow:hidden;margin:4px 0}.qz-bar i{display:block;height:100%;background:var(--sky);transition:width .3s}
/* Quiz header (v2.9.8): the standalone quiz used to show only a thin progress bar — now it
   shows the unit Pal and a readable "Question X of N" like the battle rounds do. */
.qz-head{display:flex;gap:12px;align-items:center;background:var(--white);border:3px solid var(--ink);border-radius:18px;box-shadow:var(--sh);padding:10px 14px;margin-bottom:12px}
.qz-head .mon-svg{width:64px;height:64px;flex:none}
.qz-mid{flex:1;min-width:0}
.qz-mid b{display:block;font-size:19px;margin-bottom:4px}
.fog-note{margin:2px 4px 10px;text-align:center}
.qt{font-family:var(--fd);background:var(--sun-soft);border:2px solid var(--ink);border-radius:10px;padding:2px 8px;margin-right:6px}
.res-boop{width:150px;height:150px;margin:0 auto}
.rv-list{display:flex;flex-direction:column;gap:10px;text-align:left}.rv{background:#FFF5F2;border:3px solid var(--ink);border-radius:16px;padding:10px 14px}
.rv .bad{color:#D6402D}.rv .good{color:#1B8A5F}
/* 3D pals (animated webp) */
.mon3d{object-fit:contain;display:block;user-select:none;-webkit-user-drag:none;pointer-events:none}
.res-mon .mon3d{width:210px;height:210px;margin:0 auto}
.res-mon.evolve .mon3d{filter:drop-shadow(0 0 14px var(--sun))}
.g-cell .mon3d{width:96px;height:96px}
.g-cell.locked .mon3d{filter:brightness(0);opacity:.18}
.lv-pal .mon3d{width:100%;height:auto}
.me.bob .mon3d{animation:none}
.learn-pal .mon3d{width:96px;height:96px}
.fighter .mon3d{width:118px;height:118px}@media (max-width:560px){.fighter .mon3d{width:84px;height:84px}}
/* fractions */
.frac{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;line-height:1.05;margin:0 4px;font-family:var(--fd);font-weight:700}
.frac .fn{border-bottom:3px solid currentColor;padding:0 6px 2px}.frac .fd{padding:2px 6px 0}
.fbar{display:block;margin:6px auto;max-width:100%;height:auto}

/* Chinese content */
.hz{font-family:'PingFang HK','PingFang TC','Noto Sans TC','Microsoft JhengHei',sans-serif;font-weight:700;letter-spacing:.04em}
.big-hz{font-size:64px;line-height:1.1;text-align:center;font-weight:800}
.py{font-family:'Nunito','PingFang HK',system-ui,sans-serif;font-weight:800;color:var(--ink)}
.hz-sent{font-size:28px;line-height:1.7;letter-spacing:.06em}
ruby rt{font-size:.5em;font-weight:700}

/* Dictation (默書), Today plan and rescue: styles added in v2.9.0 */
input,textarea{-webkit-user-select:text;user-select:text}
.dd-feat,.pl-card{display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--sky-soft);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:14px 18px}
.pl-card{background:var(--leaf-soft)}
.dd-feat h3,.pl-card h2{font-size:26px}.dd-feat p,.pl-card p{margin-top:4px;font-size:17px}
.pl-mini{display:flex;gap:12px;flex-wrap:wrap}.pl-mini .btn{flex:1 1 220px}
.dd-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}.dd-grid.sm{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.dd-tile{display:flex;flex-direction:column;gap:4px;align-items:flex-start;text-align:left;background:#fff;border:3px solid var(--ink);border-radius:18px;box-shadow:var(--sh);padding:12px 14px;min-height:76px}
.dd-tile:active{transform:translate(3px,3px);box-shadow:none}.dd-tile b{font-family:var(--fd);font-size:22px}.dd-tile span{font-size:15px;color:var(--ink2)}
.dd-chips{display:flex;flex-wrap:wrap;gap:8px}
.dd-chip{display:inline-flex;flex-direction:column;align-items:center;border:2px solid var(--ink);border-radius:12px;padding:4px 12px;background:#fff;font-weight:800;font-size:20px;font-style:normal;line-height:1.15}
.dd-chip small{font-size:12px;color:var(--ink2);font-weight:700}
.dd-chip.new{background:#EEF3F1}.dd-chip.ok{background:var(--sun-soft)}.dd-chip.lost{background:var(--coral-soft)}.dd-chip.strong{background:var(--leaf-soft)}
.dd-legend{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.dd-legend .dd-chip{font-size:13px;padding:2px 10px}
.btn-chip{cursor:pointer;flex-direction:row;font-family:inherit;min-height:40px}
.dd-modes{display:flex;gap:12px;flex-wrap:wrap}
.dd-say{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.dd-q .q-body p{font-size:20px}
.dd-cloze{font-size:26px!important;line-height:1.5;margin-top:12px}.dd-blank{display:inline-block;min-width:110px;border-bottom:4px solid var(--ink);text-align:center;color:var(--leaf);font-weight:800}
.dd-in{width:100%;min-height:62px;border:3px solid var(--ink);border-radius:16px;padding:10px 16px;font-family:var(--fd);font-size:32px;font-weight:600;background:#fff;color:var(--ink);margin-top:14px}
.dd-in.sm{font-size:20px;min-height:48px;margin-top:6px}.dd-ta{width:100%;min-height:160px;border:3px solid var(--ink);border-radius:14px;padding:10px 12px;font-size:18px;background:#fff;color:var(--ink);font-family:var(--fb)}
textarea.dd-in{font-size:24px;line-height:1.4}
.dd-word{font-family:var(--fd);font-size:34px;letter-spacing:2px;margin:6px 0}.dd-ok{color:#13794f}.dd-bad{color:#b3261e;text-decoration:underline}
.dd-ans{min-height:70px;border:3px solid var(--ink);border-radius:16px;background:var(--sun-soft);display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;padding:8px;margin-top:14px;font-family:var(--fd);font-size:34px}
.dd-ans.good{background:var(--leaf-soft)}.dd-ans.bad{background:var(--coral-soft)}.dd-ans .ph{font-family:var(--fb);font-size:17px;color:var(--ink2)}
.dd-tiles{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:14px}
.dd-t{min-width:58px;min-height:62px;padding:6px 14px;border:3px solid var(--ink);border-radius:14px;background:#fff;box-shadow:3px 3px 0 var(--ink);font-family:var(--fd);font-size:30px;font-weight:600}
.dd-t:active{transform:translate(3px,3px);box-shadow:none}.dd-t:disabled{opacity:.25;box-shadow:none}.dd-t.on{min-width:0;min-height:0;display:inline-block;padding:2px 12px;background:var(--sky-soft);box-shadow:none}
.dd-py{font-family:var(--fd);font-size:30px;color:var(--grape);text-align:center;margin:8px 0}
.dd-big{font-family:var(--fd);font-size:56px;text-align:center;margin:10px 0}.dd-big.sm{font-size:40px}
.dd-opts .opt{font-size:30px;min-height:76px}
.dd-res h2{font-size:56px}.dd-coin{display:flex;gap:6px;align-items:center;justify-content:center;font-family:var(--fd);font-size:22px}
.dd-lrow,.dd-srow,.dd-pyrow{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:2px dashed var(--grid);padding:10px 0}
.dd-lrow span{color:var(--ink2);font-size:15px}.dd-lbtn{display:flex;gap:8px;flex-wrap:wrap}
.dd-pyrow{justify-content:flex-start}.dd-pyw{font-family:var(--fd);font-size:26px;min-width:130px}.dd-pyrow .dd-in{flex:1 1 220px;width:auto}
.dd-stext{flex:1 1 300px;font-size:20px;line-height:1.9}.dd-w{border:2px solid var(--ink);border-radius:10px;background:#fff;padding:1px 8px;font:inherit;margin:1px}.dd-w.on{background:var(--sun)}
.dd-x{border:0;background:transparent;font-size:16px;padding:0 0 0 4px;cursor:pointer}
.pl-head{background:var(--sun-soft);border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:14px 18px;display:flex;flex-direction:column;gap:10px}.pl-head h2{font-size:30px}
.pl-bar{height:16px;border:3px solid var(--ink);border-radius:999px;background:#fff;overflow:hidden}.pl-bar i{display:block;height:100%;background:var(--leaf)}
.pl-list{display:flex;flex-direction:column;gap:10px}
.pl-step{display:flex;align-items:center;gap:12px;background:#fff;border:3px solid var(--ink);border-radius:18px;padding:10px 14px}.pl-step.done{background:var(--leaf-soft)}
.pl-ic{font-size:28px;width:44px;text-align:center}.pl-t{flex:1;display:flex;flex-direction:column}.pl-t b{font-family:var(--fd);font-size:21px}.pl-t span{font-size:15px;color:var(--ink2)}
.pl-tablewrap{overflow-x:auto}.pl-tab{border-collapse:collapse;width:100%;font-size:16px}.pl-tab th,.pl-tab td{border-bottom:2px solid var(--grid);padding:6px 8px;text-align:left}
@media (max-width:640px){.dd-feat,.pl-card{flex-direction:column;align-items:stretch}.dd-big{font-size:44px}}

/* ============ v2.9.11 — KooBits-inspired homepage (layout language only) ============
   Single column, dark indigo header + stats row, big raccoon hero banner, big
   rounded feature cards, two-tab bottom navigation. Our own Pals and copy;
   Rascal the raccoon is the star, not KooBits' fox. */
.kb-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:linear-gradient(135deg,#3B2E8C,#2A2070);border:3px solid var(--ink);border-radius:24px;box-shadow:var(--sh);padding:14px 18px;color:#fff}
.kb-head-l{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.kb-logo{font-family:var(--fd);font-weight:700;font-size:30px;letter-spacing:-.5px;line-height:1;background:none;border:0;padding:0;cursor:pointer;color:#fff;text-align:left}
.kb-logo b{color:var(--sun)}
.kb-pill{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:6px 14px;border:3px solid rgba(255,255,255,.85);border-radius:999px;background:rgba(0,0,0,.25);color:#fff;font-family:var(--fd);font-weight:600;font-size:18px;cursor:pointer}
.kb-head-r{display:flex;align-items:center;gap:12px}
.kb-flame{display:inline-flex;align-items:center;gap:4px;background:rgba(255,255,255,.16);border-radius:999px;padding:6px 12px;font-size:20px}
.kb-flame b{font-family:var(--fd)}
.kb-gift{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border:3px solid rgba(255,255,255,.85);border-radius:50%;background:rgba(255,255,255,.14);font-size:24px;cursor:pointer}
.kb-avatar{width:56px;height:56px;border-radius:50%;border:3px solid #fff;background:#fff;padding:0;overflow:hidden;cursor:pointer;flex:none}
.kb-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.kb-hello{margin:0 4px;font-size:17px;font-weight:600;color:var(--ink2)}
.kb-rename{display:flex;gap:10px;align-items:center;margin:0 4px}
.kb-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.kb-stat{background:#fff;border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:12px 8px;text-align:center;font-family:var(--fd);cursor:pointer}
.kb-stat:active{transform:translate(2px,2px)}
.kb-stat-n{display:flex;align-items:center;justify-content:center;gap:6px;font-family:var(--fd);font-size:30px;font-weight:700}
.kb-stat-n b{font-size:34px}
.kb-stat small{font-size:15px;font-weight:600;color:var(--ink2)}
.kb-utils{display:flex;gap:10px;flex-wrap:wrap;margin:0 2px}
.kb-hero{position:relative;overflow:hidden;display:flex;align-items:center;gap:18px;background:radial-gradient(circle at 88% 12%,rgba(255,255,255,.95) 0 30px,transparent 31px),radial-gradient(circle at 6% 88%,rgba(255,255,255,.5) 0 20px,transparent 21px),radial-gradient(circle at 12% 18%,rgba(255,255,255,.65) 0 3px,transparent 4px),radial-gradient(circle at 78% 82%,rgba(255,255,255,.65) 0 3px,transparent 4px),radial-gradient(circle at 92% 62%,rgba(255,255,255,.55) 0 3px,transparent 4px),linear-gradient(155deg,#FFE29A 0%,#FFC46B 55%,#FF9F5A 100%);border:3px solid var(--ink);border-radius:28px;box-shadow:var(--sh);padding:20px 22px}
.kb-hero-ill{flex:none;background:none;border:0;padding:0;cursor:pointer;position:relative;z-index:1}
.kb-hero-ill img{width:240px;height:240px;display:block;filter:drop-shadow(0 6px 0 rgba(27,42,73,.18));animation:kb-bob 3.2s ease-in-out infinite}
.kb-hero-t{flex:1;min-width:0;position:relative;z-index:1}
.kb-hero-t h2{font-size:34px;line-height:1.15;margin:0 0 6px}
.kb-hero-t p{font-size:18px;font-weight:600;margin:0 0 14px}
.kb-hero-btns{display:flex;gap:10px;flex-wrap:wrap}
.kb-start{min-height:58px;font-size:21px}
.kb-hero .week{margin-top:14px}
.kb-deco{position:absolute;font-size:30px;z-index:0;opacity:.9}
.kb-deco:not(.d2):not(.d3){top:10px;right:14px}
.kb-deco.d2{top:12px;left:38%;font-size:26px;animation:kb-float 5s ease-in-out infinite}
.kb-deco.d3{bottom:10px;right:34%;font-size:22px;color:#FFF3C4}
@keyframes kb-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
@keyframes kb-float{0%,100%{transform:translateX(0)}50%{transform:translateX(10px)}}
.kb-prog{height:14px;background:rgba(27,42,73,.18);border-radius:999px;overflow:hidden;margin:0 0 6px}
.kb-prog i{display:block;height:100%;background:linear-gradient(90deg,#2E7FE0,#5DAE2E);border-radius:999px;transition:width .4s ease}
.kb-prog-t{font-size:17px!important;margin:0 0 10px!important}
.kb-say{background:#fff;border:3px solid var(--ink);border-radius:16px;box-shadow:var(--sh);padding:8px 12px;font-size:17px!important;margin:0 0 12px!important}
@media (prefers-reduced-motion:reduce){.kb-hero-ill img,.kb-deco{animation:none!important}}
.kb-card{display:flex;align-items:center;gap:16px;width:100%;text-align:left;border:3px solid var(--ink);border-radius:28px;box-shadow:var(--sh);padding:18px 20px;font-family:var(--fd);cursor:pointer;color:#fff}
.kb-card:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--ink)}
.kb-card-ill{flex:none;font-size:52px;line-height:1;text-align:center}
.kb-card-ill img{width:112px;height:112px;display:block}
.kb-pals{display:flex;align-items:center}
.kb-pals img{width:60px;height:60px}
.kb-pals img+img{margin-left:-10px}
.kb-card-t{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.kb-card-t b{font-size:25px;line-height:1.2}
.kb-card-t small{font-size:16px;font-weight:600;opacity:.92}
.kb-card-prog{font-size:16px;font-weight:700;background:rgba(0,0,0,.22);border-radius:999px;padding:4px 12px;align-self:flex-start}
.kb-card-go{font-size:40px;font-weight:700;line-height:1;opacity:.85}
.kb-hub{background-image:radial-gradient(rgba(59,46,140,.09) 1.5px,transparent 1.6px);background-size:26px 26px;border-radius:28px;padding:6px}
.kb-picker{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:#fff;border:3px solid var(--ink);border-radius:20px;box-shadow:var(--sh);padding:10px 12px}
.kb-picker-t{font-weight:700;font-size:16px}
.kb-pick{border:3px solid var(--ink);border-radius:999px;background:var(--paper);padding:8px 14px;font-family:var(--fd);font-weight:700;font-size:17px;cursor:pointer}
.kb-pick.on{background:var(--sun);color:#1B2A49}
.kb-pick:active{transform:translate(2px,2px)}
.kb-test{background:linear-gradient(135deg,#8A63D2,#6A3FBF);animation:kb-pulse 2.8s ease-in-out infinite}
@keyframes kb-pulse{0%,100%{box-shadow:var(--sh)}50%{box-shadow:0 0 0 5px rgba(255,210,63,.6),var(--sh)}}
.kb-mission{background:linear-gradient(135deg,#4DA3FF,#2E7FE0);color:#fff}
.kb-asg{background:linear-gradient(135deg,#8FD14F,#5DAE2E)}
.kb-games{background:linear-gradient(135deg,#FFB020,#FF7A1A)}
.tabbar-space{height:86px}
.tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:1000px;display:flex;z-index:50}
.tab{flex:1;display:flex;align-items:center;justify-content:center;gap:10px;min-height:64px;border:3px solid var(--ink);font-family:var(--fd);font-weight:700;font-size:20px;color:#fff;cursor:pointer}
.tab:first-child{border-radius:20px 0 0 0}
.tab:last-child{border-radius:0 20px 0 0}
.tab.on{background:#2A2070}
.tab:not(.on){background:#6C5CE7}
.tab span{white-space:nowrap}

/* ============ v2.9.11 — Test Revision ============ */
.mock-paper{background:#fff;border:3px solid var(--ink);border-radius:22px;box-shadow:var(--sh);padding:16px 18px}
.mock-paper h3{margin:0}
.mp-head{margin-bottom:12px}
.mock-rounds{display:flex;flex-direction:column;gap:10px}
.mock-round{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:var(--paper);border:3px solid var(--ink);border-radius:18px;padding:12px 14px;font-family:var(--fd);cursor:pointer}
.mock-round:active{transform:translate(2px,2px)}
.mr-code{flex:none;min-width:64px;text-align:center;background:var(--grape);color:#fff;border-radius:999px;padding:6px 10px;font-weight:700;font-size:15px}
.mr-mid{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.mr-mid b{font-size:19px}
.mr-mid small{font-size:14px;color:var(--ink2)}
.mr-best{flex:none;font-weight:700;font-size:16px;color:var(--leaf)}
.free-ans{width:100%;min-height:110px;border:3px solid var(--ink);border-radius:16px;padding:12px 14px;font-family:inherit;font-size:19px;line-height:1.5;resize:vertical}
@media (max-width:640px){
  .kb-hero{flex-direction:column;text-align:center;padding:18px}
  .kb-hero-ill img{width:200px;height:200px}
  .kb-hero-t h2{font-size:28px}
  .kb-hero-btns{justify-content:center}
  .kb-card-t b{font-size:21px}
  .kb-card-ill img{width:72px;height:72px}
  .kb-logo{font-size:25px}
  .kb-stat-n{font-size:24px}
  .kb-stat-n b{font-size:28px}
  .tab{font-size:17px;min-height:58px}
}

/* ============ v2.9.14 — Landscape: "Space Explorer" (mockups v7 + v10) ============
   RIGHT side: mockup v7, FINAL and FROZEN (2x2 mission-scene cards: Mars rover /
   Moon lander / space station / comet-chaser rocket, porthole animals, titles).
   LEFT side: mockup v10 (Ron approved 23:10, "Go") — three stacked rounded white
   cards in the right side's visual language (coloured labels, round porthole
   windows): (1) Pilot hero card — Rascal in a round porthole + "Hi, Caleb!" +
   small rocket; (2) Daily Challenge card — 5 gold stars + small planet row;
   (3) stat tags card — Coins / Streak / Level tags. The whole page is pale sky
   blue; the left tree and the right shelf are transparent (no panels) — the
   cards sit directly on the page background, exactly as in the v10 mockup.
   No third-party rocket-brand name/logo/trademark text anywhere. Bold bright
   flat vector for a 7-year-old, organised, not cluttered.
   Superseded (NOT built): the soft Treehouse v1 (kept only as the future
   kindergarten-academy design for 細佬), bold Treehouse v2, space Treehouse v3,
   messy exploration v5, the v8 varied-left stack, the v9 left-matches-right
   cards, and the v7 left (clean white rocket + hanging tags — replaced by v10).
   The wrappers (.kb-tree/.kb-shelf/.kb-plan/.kb-rocket) are display:contents
   below 1024px, so portrait renders exactly as v2.9.13. One breakpoint only:
   min-width:1024px (iPad portrait 820px and iPhone landscape ~844px do NOT
   trigger it). The left column is NOT sticky: the v10 stack is ~750px tall,
   so it scrolls with the page like a normal column (sticky would trap the
   bottom tags out of reach on an 820px-tall viewport). */
.kb-tree,.kb-shelf,.kb-plan,.kb-rocket{display:contents}
.kb-hub-head,.kb-hub-foot,.kb-utils-ls{display:none}
.kb-stars,.kb-pilot-greet,.kb-pilot-rocket,.kb-planets{display:none}
@media (min-width:1024px){
  body{background-color:#DCEEFF;background-image:radial-gradient(rgba(255,255,255,.75) 1.5px,transparent 1.6px),radial-gradient(rgba(255,255,255,.45) 1px,transparent 1.1px);background-size:120px 120px,70px 70px}
  .wrap{max-width:min(1480px,100% - 40px)}
  /* ---- hub grid: full-width top strip, rocket zone, mission shelf, footer ---- */
  .kb-hub{display:grid;grid-template-columns:minmax(380px,5fr) 7fr;gap:20px;align-items:start;background:none;padding:0}
  .kb-hub-head{display:flex;grid-column:1/-1;justify-self:center;align-items:center;gap:16px;background:linear-gradient(135deg,#4DA3FF,#2E7FE0);border:3px solid var(--ink);border-radius:999px;box-shadow:var(--sh);padding:10px 22px;color:#fff;font-family:var(--fd);font-weight:700;font-size:26px}
  .kb-hub-head-r{font-size:18px;font-weight:600}
  .kb-hub-foot{display:block;grid-column:1/-1;justify-self:center;background:#EAF6FF;border:3px solid var(--ink);border-radius:999px;box-shadow:var(--sh);padding:8px 22px;font-family:var(--fd);font-weight:600;font-size:19px;text-align:center}
  /* ---- LEFT (v10): three stacked white cards on the pale page — no panel ---- */
  .kb-tree{display:flex;flex-direction:column;gap:16px;background:none;border:0;box-shadow:none;padding:0}
  .kb-tree>.kb-head{order:1;background:none;border:0;box-shadow:none;padding:4px 2px}
  .kb-tree>.kb-head .kb-logo{color:#1B2A49}
  .kb-tree>.kb-head .kb-logo b{color:#FF7A1A}
  .kb-tree>.kb-head .kb-pill{background:#fff;color:#1B2A49;border-color:var(--ink)}
  .kb-tree>.kb-head .kb-flame{background:#fff;color:#1B2A49;border:2px solid var(--ink)}
  .kb-tree>.kb-head .kb-gift{background:#fff;border-color:var(--ink)}
  .kb-tree>.kb-head .kb-avatar{border-color:var(--ink)}
  .kb-tree>.kb-picker{order:2;display:grid;grid-template-columns:1fr 1fr}
  .kb-tree>.kb-picker .kb-picker-t{grid-column:1/-1}
  .kb-tree>.kb-hello{order:3;display:none}
  .kb-tree>.kb-rename{order:3}
  .kb-tree>.flash{order:4}
  .kb-tree>.kb-hero{order:5}
  .kb-tree>.kb-stats{order:6}
  .kb-tree>.kb-utils{display:none}
  /* ---- hero: v10 card 1 (Pilot) + card 2 (Daily Challenge) ---- */
  .kb-hero{display:flex;flex-direction:column;gap:16px;background:none;border:0;box-shadow:none;padding:0;overflow:visible}
  .kb-hero .kb-deco{display:none}
  /* Pilot card: white card, blue "Pilot" label, porthole Rascal + greeting + small rocket */
  .kb-rocket{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;background:#fff;border:3px solid var(--ink);border-radius:24px;box-shadow:var(--sh);padding:62px 18px 14px}
  .kb-rocket::before{content:'🚀 Pilot';position:absolute;top:14px;left:16px;background:#7FB3F5;color:#1B2A49;font-family:var(--fd);font-weight:700;font-size:18px;padding:5px 14px;border:3px solid var(--ink);border-radius:999px}
  .kb-rocket::after{display:none}
  .kb-hero-ill{position:static;transform:none;order:2;width:140px;height:140px;flex:none;padding:0;border-radius:50%;border:4px solid var(--ink);box-shadow:0 0 0 6px #8FA3C0,0 0 0 9px var(--ink);background:#0B1035;overflow:hidden}
  .kb-hero-ill img{width:140px;height:140px}
  .kb-pilot-greet{display:block;order:1;flex:1 1 0;min-width:0;margin:0;font-family:var(--fd);font-weight:700;font-size:30px;color:#1B2A49}
  .kb-pilot-rocket{display:block;order:3;flex:1 1 100%;font-size:54px;line-height:1;margin-top:2px}
  /* Daily Challenge card: white card, yellow label, 5 stars + planet row + start buttons */
  .kb-hero-t{position:relative;background:#fff;border:3px solid var(--ink);border-radius:24px;box-shadow:var(--sh);padding:62px 18px 16px;text-align:center}
  .kb-hero-t::before{content:'⭐ Daily Challenge';position:absolute;top:14px;left:16px;background:#FFD84D;color:#1B2A49;font-family:var(--fd);font-weight:700;font-size:18px;padding:5px 14px;border:3px solid var(--ink);border-radius:999px}
  .kb-hero-t h2{display:none}
  .kb-hero-t>h2+p{display:none}
  .kb-prog,.kb-prog-t,.kb-hero .week{display:none}
  .kb-say{text-align:left}
  .kb-stars{display:flex;justify-content:center;gap:8px;margin:4px 0 10px}
  .kb-stars span{font-size:42px;line-height:1;color:#E8ECF2}
  .kb-stars span.on{color:#FFC83D;text-shadow:2px 2px 0 var(--ink)}
  .kb-planets{display:flex;justify-content:center;align-items:center;gap:4px;margin:0 0 12px;font-size:22px;line-height:1}
  .kb-planets i{width:18px;border-top:2px dashed #8FA3C0}
  .kb-hero-btns{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .kb-hero-btns .btn{width:100%}
  /* ---- v10 card 3: stat tags card (white card, tags hang inside it) ---- */
  .kb-stats{gap:12px;background:#fff;border:3px solid var(--ink);border-radius:24px;box-shadow:var(--sh);padding:26px 14px 14px}
  .kb-stat{position:relative;margin-top:16px;padding:26px 6px 12px;border-radius:16px 16px 20px 20px;color:#1B2A49}
  .kb-stat::before{content:'';position:absolute;top:-16px;left:50%;width:3px;height:18px;background:var(--ink)}
  .kb-stat::after{content:'';position:absolute;top:8px;left:50%;transform:translateX(-50%);width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid var(--ink)}
  .kb-stat:nth-child(1){background:#FFC83D}
  .kb-stat:nth-child(2){background:#FF7A1A}
  .kb-stat:nth-child(3){background:#4DA3FF}
  .kb-stat small{color:#1B2A49}
  .kb-stat-n{color:#1B2A49}
  /* ---- RIGHT (v7, frozen): shelf is transparent in v10 — cards sit on the page ---- */
  .kb-shelf{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-content:start;background:none;border:0;box-shadow:none;padding:0}
  /* v7 right side, frozen 2x2: pin the four scene cards to rows 1–2 so the
     full-width Assignments / Reward Box rows below cannot split them. */
  .kb-test{grid-column:1;grid-row:1}
  .kb-plan{grid-column:2;grid-row:1}
  .kb-mission{grid-column:1;grid-row:2}
  .kb-games{grid-column:2;grid-row:2}
  .kb-test,.kb-mission,.kb-games{position:relative;display:block;min-height:250px;overflow:hidden;border-radius:24px;padding:16px;color:#fff}
  .kb-test .kb-card-t,.kb-mission .kb-card-t,.kb-games .kb-card-t{position:absolute;top:14px;left:16px;right:126px;display:block}
  .kb-test .kb-card-t b,.kb-mission .kb-card-t b,.kb-games .kb-card-t b{font-size:24px}
  .kb-test .kb-card-t small,.kb-test .kb-card-prog,.kb-mission .kb-card-t small,.kb-mission .kb-card-prog,.kb-games .kb-card-t small{display:none}
  .kb-test .kb-card-go,.kb-mission .kb-card-go,.kb-games .kb-card-go{display:none}
  /* Mars rover (Test Revision): red Mars surface, rover bot + flag */
  .kb-test{background:linear-gradient(180deg,#F68B5A 0%,#E85D3D 55%,#C7432B 100%)}
  .kb-test .kb-card-t b{color:#571505}
  .kb-test .kb-card-ill{position:absolute;top:14px;right:14px}
  .kb-test .kb-card-ill img{width:96px;height:96px;border-radius:50%;border:4px solid var(--ink);box-shadow:0 0 0 5px #2E4A7A,0 0 0 8px var(--ink);background:#0B1035}
  .kb-test::before{content:'🚩';position:absolute;left:118px;bottom:16px;font-size:44px}
  .kb-test::after{content:'🤖';position:absolute;left:20px;bottom:12px;font-size:88px;filter:drop-shadow(3px 3px 0 rgba(27,42,73,.35))}
  /* Moon lander (Today's Tasks): grey cratered moon, lander craft, dome */
  .kb-plan{position:relative;display:block;min-height:250px;overflow:hidden;background-image:radial-gradient(circle at 18% 78%,rgba(0,0,0,.16) 0 34px,transparent 35px),radial-gradient(circle at 62% 88%,rgba(0,0,0,.13) 0 22px,transparent 23px),radial-gradient(circle at 84% 62%,rgba(255,255,255,.22) 0 16px,transparent 17px),linear-gradient(180deg,#9AA7B5,#6E7B8C 60%,#5A6675);border:3px solid var(--ink);border-radius:24px;box-shadow:var(--sh);padding:16px}
  .kb-plan::before{content:'🐻';position:absolute;top:14px;right:14px;width:96px;height:96px;border-radius:50%;background:#0B1035;border:4px solid var(--ink);box-shadow:0 0 0 5px #8FA3C0,0 0 0 8px var(--ink);display:flex;align-items:center;justify-content:center;font-size:62px}
  .kb-plan::after{content:'🛸';position:absolute;right:18px;bottom:10px;font-size:80px;filter:drop-shadow(3px 3px 0 rgba(27,42,73,.35))}
  .kb-plan .pl-card{display:block;background:transparent;border:0;box-shadow:none;padding:0}
  .kb-plan .pl-card h2{color:#1B2A49;font-size:26px}
  .kb-plan .pl-card p{color:#fff;font-size:16px;text-shadow:1px 1px 0 rgba(27,42,73,.5)}
  .kb-plan .pl-card .daily-btns{margin-top:10px}
  /* Dictation + Rescue buttons live in this card (hubCard .pl-mini). They were
     hidden in v2.9.14 landscape, leaving no way to open Dictation except on a
     due day — so show them; only the "no lost Pals" note stays hidden. The UFO
     decoration would overlap the buttons, so it is hidden in landscape too. */
  .kb-plan>.note{display:none}
  .kb-plan::after{display:none}
  /* Space station (Mission): deep purple sky, ringed planet + station */
  .kb-mission{background-image:radial-gradient(circle at 14% 14%,#fff 0 1.5px,transparent 2px),radial-gradient(circle at 82% 20%,#fff 0 1.5px,transparent 2px),radial-gradient(circle at 60% 8%,#FFE9A8 0 1.5px,transparent 2px),radial-gradient(circle at 16% 84%,#E8C98F 0 42px,transparent 43px),linear-gradient(180deg,#241A5E,#0E0830)}
  .kb-mission .kb-card-t b{color:#fff}
  .kb-mission .kb-pals{position:absolute;top:14px;right:14px}
  .kb-mission .kb-pals img{width:96px;height:96px;margin:0;border-radius:50%;border:4px solid var(--ink);box-shadow:0 0 0 5px #2E4A7A,0 0 0 8px var(--ink);background:#0B1035}
  .kb-mission .kb-pals img+img{display:none}
  .kb-mission::after{content:'🪐 🛰️';position:absolute;left:16px;bottom:12px;font-size:64px;letter-spacing:6px;filter:drop-shadow(3px 3px 0 rgba(0,0,0,.4))}
  /* Comet-chaser rocket (Games): dark asteroid field, speedy rocket */
  .kb-games{background-image:radial-gradient(circle at 22% 70%,#8A97A8 0 26px,transparent 27px),radial-gradient(circle at 68% 82%,#6E7B8C 0 18px,transparent 19px),radial-gradient(circle at 88% 55%,#8A97A8 0 14px,transparent 15px),linear-gradient(180deg,#131A3D,#080C24)}
  .kb-games .kb-card-t b{color:#fff}
  .kb-games::before{content:'🐼';position:absolute;top:14px;right:14px;width:96px;height:96px;border-radius:50%;background:#0B1035;border:4px solid var(--ink);box-shadow:0 0 0 5px #2E4A7A,0 0 0 8px var(--ink);display:flex;align-items:center;justify-content:center;font-size:62px}
  .kb-games::after{content:'🚀';position:absolute;left:22px;bottom:6px;font-size:92px;transform:rotate(-10deg);filter:drop-shadow(3px 3px 0 rgba(0,0,0,.4))}
  /* shelf bottom rows: assignments + reward box as white cards, utils row */
  .kb-asg{grid-column:1/-1;background:#fff;color:var(--ink);border-top:10px solid #5DAE2E}
  .rbox{grid-column:1/-1;background:#fff;border-top:10px solid var(--sun)}
  .kb-utils-ls{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
  .kb-utils-ls .btn{width:100%}
  /* ---- other views: full monitor width ---- */
  .units{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
  .unit .mon-svg{border-radius:50%;border:3px solid #6B4A2F;background:#fff}
  .round{max-width:1160px}
  .qcard{display:grid;grid-template-columns:1.1fr 1fr;gap:8px 22px;align-items:start}
  .qcard>.q-body,.qcard>.fig,.qcard>.passage,.qcard>.big-words,.qcard>.seq,.qcard>.eq,.qcard>.picto,.qcard>.sentence,.qcard>.tally-t{grid-column:1}
  .qcard>.opts,.qcard>.ans,.qcard>.pad,.qcard>.tiles,.qcard>.tile-ans,.qcard>.tools,.qcard>.hint,.qcard>.fb,.qcard>.modal-lite{grid-column:2}
  .qcard>.q-tag{grid-column:1/-1}
  .qcard:has(.passage),.qcard:has(.hz-sent){display:flex;flex-direction:column;max-width:760px}
  .qz-head .mon-svg{border-radius:50%;border:3px solid #6B4A2F;background:#fff}
  .battle{grid-template-columns:120px 1fr 120px}
  .fighter .mon-svg,.fighter svg{width:120px;height:120px}
  .result{max-width:920px}
  /* lesson: stage (Pal + bubble) above the board */
  .lv-top,.lv-prog,.lv-board,.lv-teach{max-width:1240px}
  .lv-top{order:1}
  .lv-prog{order:2}
  .lv-teach{order:3}
  .lv-board{order:4}
  .lv-ctl{order:5}
  .lv-pal{width:180px}
  /* dictation: listening board left, answer area right */
  .qcard.dd-q{grid-template-columns:5fr 7fr}
  .qcard.dd-q>.q-body{grid-column:1}
  .qcard.dd-q>.opts,.qcard.dd-q>.dd-ans,.qcard.dd-q>.dd-tiles,.qcard.dd-q>.tile-act,.qcard.dd-q>.tools,.qcard.dd-q>.fb,.qcard.dd-q>.dd-in,.qcard.dd-q>textarea.dd-in{grid-column:2}
  .qcard.dd-q:has(.passage){display:flex;flex-direction:column;max-width:760px}
  /* canvas games: keep the portrait playfield, spare width for Q/HUD panel */
  .qj-wide{display:grid;grid-template-columns:360px 1fr;gap:18px;align-items:start}
  .qj-wide>*{grid-column:2}
  .qj-wide canvas{grid-column:1;grid-row:1/span 7;max-height:min(600px,calc(100vh - 260px))}
  /* Test Revision: 3 books on a shelf */
  .wrap:has(.mock-paper){display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
  .wrap:has(.mock-paper)>.r-top,.wrap:has(.mock-paper)>p.note,.wrap:has(.mock-paper)>.rep-card,.wrap:has(.mock-paper)>.actions{grid-column:1/-1}
  .mock-paper{border-top:10px solid var(--grape)}
  .mock-paper:nth-of-type(1){border-top-color:#4DA3FF}
  .mock-paper:nth-of-type(2){border-top-color:#FF6B57}
  .mock-paper:nth-of-type(3){border-top-color:#2FAE7E}
  .rv-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  /* report / achievements / guide */
  .two{grid-template-columns:repeat(3,1fr)}
  .chart{height:220px}
  .medals{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
  .rw-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  .asg-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .guide{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
  .guide .g-cell svg{border-radius:50%;border:3px solid #6B4A2F;background:#fff}
  /* floating pill dock (not a full-width bottom bar) */
  .tabbar{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);width:auto;max-width:none;border:3px solid var(--ink);border-radius:999px;overflow:hidden;box-shadow:var(--sh);background:#fff}
  .tab{flex:0 1 220px;border:0}
  .tab:first-child{border-radius:999px 0 0 999px}
  .tab:last-child{border-radius:0 999px 999px 0}
  .tab:not(.on){background:#fff;color:var(--ink)}
  .tabbar-space{height:100px}
  /* dark-surface overrides: no large dark block may survive except the dock's
     single active tab and the two dark scene cards (Mission / Games). */
  .kb-hub{background:none}
  .kb-hero{background:none}
}
@media (min-width:1600px){
  .wrap{max-width:1560px}
}