/* Math Adventure — modern, soft, kid-friendly design system */
:root{
  --bg:#f3f4fb;--card:#fff;--card2:#f6f7ff;--text:#1b1f3b;--mute:#6a7094;--line:rgba(27,31,59,.09);
  --accent:#6c5ce7;--accent2:color-mix(in srgb,var(--accent) 55%,#fff);
  --good:#12b886;--bad:#fa5252;--warn:#f59f00;
  --shadow:0 12px 32px rgba(27,31,59,.08),0 2px 6px rgba(27,31,59,.05);
  --r:26px;--safe-t:env(safe-area-inset-top,0px);--safe-b:env(safe-area-inset-bottom,0px);
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0e1124;--card:#181c38;--card2:#1f2446;--text:#eef0ff;--mute:#9aa1cc;--line:rgba(255,255,255,.09);--shadow:0 12px 32px rgba(0,0,0,.4)}
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100vh;min-height:100dvh;color:var(--text);-webkit-font-smoothing:antialiased;
  font-family:ui-rounded,"SF Pro Rounded","Nunito","Segoe UI Variable Display",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:
    radial-gradient(820px 480px at 6% -8%,color-mix(in srgb,var(--accent) 26%,transparent),transparent 70%),
    radial-gradient(700px 480px at 108% 4%,rgba(255,166,122,.22),transparent 70%),
    radial-gradient(640px 520px at 50% 112%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 70%),
    var(--bg);
  background-attachment:fixed;
}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;padding:0;user-select:none;-webkit-user-select:none;touch-action:manipulation}
button:disabled{cursor:not-allowed}
h1,h2,h3,p{margin:0}
h1{letter-spacing:-.02em}
.hidden{display:none!important}
.ic{display:block;flex:none}
.mute{color:var(--mute)}.small{font-size:13.5px}.big{font-size:19px;font-weight:700;line-height:1.35}
.grow{flex:1;min-width:0}
.sec{margin-top:6px;font-size:16px;color:var(--mute);text-transform:uppercase;letter-spacing:.06em}

#app{max-width:720px;margin:0 auto;padding:calc(var(--safe-t) + 14px) 16px calc(28px + var(--safe-b))}
body.has-nav #app{padding-bottom:calc(110px + var(--safe-b))}
#view.in{animation:rise .38s cubic-bezier(.2,.8,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
#view>*+*{margin-top:16px}
.stack{display:grid;gap:14px}

/* ---------- header ---------- */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.top.plain{gap:10px}
.h1{font-size:clamp(26px,7vw,34px);font-weight:800;line-height:1.15}
.who{display:flex;align-items:center;gap:12px;text-align:left}
.who small{display:block;color:var(--mute);font-size:12.5px;font-weight:600}
.who b{font-size:18px}
.av{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;font-size:26px;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#fff));box-shadow:0 8px 18px color-mix(in srgb,var(--c) 35%,transparent);flex:none}
.av.lg{width:56px;height:56px;border-radius:20px;font-size:30px}
.pills{display:flex;align-items:center;gap:8px}
.pill{background:var(--card);padding:8px 12px;border-radius:999px;font-weight:800;font-size:14px;box-shadow:var(--shadow);border:1px solid var(--line)}
.iconbtn{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--card);color:var(--text);box-shadow:var(--shadow);border:1px solid var(--line);flex:none;transition:transform .12s}
.iconbtn:active{transform:scale(.92)}
.iconbtn.sm{width:36px;height:36px}
.iconbtn:disabled{opacity:.35}

/* ---------- cards, buttons, forms ---------- */
.card{background:var(--card);border-radius:var(--r);padding:18px;box-shadow:var(--shadow);border:1px solid var(--line)}
.card h2{font-size:20px;font-weight:800}.card h3{font-size:17px;font-weight:800;margin-bottom:10px}
.card.stack h3{margin-bottom:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 26px;border-radius:999px;font-weight:800;font-size:17px;color:#fff;background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 68%,#ff7ab6));box-shadow:0 10px 24px color-mix(in srgb,var(--accent) 38%,transparent);transition:transform .15s,box-shadow .15s;width:100%}
.btn:active{transform:scale(.97)}
.btn.ghost{background:var(--card);color:var(--text);box-shadow:var(--shadow);border:1px solid var(--line)}
.btn.danger{background:linear-gradient(135deg,#fa5252,#e8590c);box-shadow:0 10px 24px rgba(250,82,82,.3)}
.btn.ghost.danger{background:var(--card);color:var(--bad);box-shadow:var(--shadow)}
.btnrow{display:flex;gap:10px;flex-wrap:wrap}
.btnrow>.btn{flex:1;width:auto}
.btnrow.tight{gap:6px;flex-wrap:nowrap}
.fld{display:grid;gap:8px}
.fld>span{font-size:13px;font-weight:800;color:var(--mute);text-transform:uppercase;letter-spacing:.05em}
.input{width:100%;font:inherit;font-size:17px;font-weight:600;color:var(--text);background:var(--card2);border:2px solid transparent;border-radius:16px;padding:14px 16px;outline:none;transition:border-color .15s,box-shadow .15s}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips.scroll{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chips.scroll::-webkit-scrollbar{display:none}
.chip{background:var(--card2);border:2px solid transparent;border-radius:14px;padding:9px 14px;font-weight:700;font-size:15px;white-space:nowrap;transition:background .15s,border-color .15s,transform .1s}
.chip:active{transform:scale(.95)}
.chip.on{background:color-mix(in srgb,var(--accent) 16%,var(--card));border-color:var(--accent);color:var(--accent)}
.sw{width:40px;height:40px;border-radius:50%;background:var(--c);border:3px solid var(--card);box-shadow:0 0 0 2px transparent,0 6px 12px color-mix(in srgb,var(--c) 40%,transparent)}
.sw.on{box-shadow:0 0 0 3px var(--c),0 6px 12px color-mix(in srgb,var(--c) 40%,transparent)}
.avgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.avbtn{aspect-ratio:1;border-radius:16px;background:var(--card2);font-size:28px;display:grid;place-items:center;border:2px solid transparent}
.avbtn.on{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,var(--card))}
.switch{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;background:var(--card2);border-radius:16px;font-weight:700;text-align:left}
.switch i{width:46px;height:28px;border-radius:99px;background:var(--line);position:relative;transition:background .2s;flex:none}
.switch i::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.25);transition:transform .2s}
.switch.on i{background:var(--accent)}.switch.on i::after{transform:translateX(18px)}
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--card2);border-radius:16px;padding:4px;gap:4px}
.seg button{padding:11px;border-radius:12px;font-weight:800}
.seg button.on{background:var(--card);box-shadow:var(--shadow);color:var(--accent)}
.rowbtn{display:flex;align-items:center;gap:14px;text-align:left;width:100%;padding:12px;border-radius:20px;background:var(--card2);transition:transform .12s}
.rowbtn:active{transform:scale(.98)}
.rowbtn small{display:block}
.filebtn{cursor:pointer}
.empty{text-align:center;padding:40px 20px;color:var(--mute)}
.empty .big{font-size:56px;margin-bottom:8px}.empty b{display:block;font-size:18px;color:var(--text)}.empty p{margin-top:6px}

/* ---------- auth ---------- */
.hero{text-align:center;padding:26px 0 6px}
.logo{font-size:84px;line-height:1;animation:bob 3s ease-in-out infinite;filter:drop-shadow(0 14px 18px color-mix(in srgb,var(--accent) 35%,transparent))}
@keyframes bob{50%{transform:translateY(-8px) rotate(3deg)}}
.hero h1{font-size:clamp(30px,8vw,40px);font-weight:800;margin-top:10px}
.hero .sub{color:var(--mute);margin-top:6px;font-weight:600}
.kids{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.kidcard{display:grid;justify-items:center;gap:10px;padding:26px 12px;border-radius:30px;background:var(--card);box-shadow:var(--shadow);border:1px solid var(--line);font-size:18px;font-weight:800;transition:transform .15s;position:relative;overflow:hidden}
.kidcard::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0,color-mix(in srgb,var(--c,var(--accent)) 28%,transparent),transparent 70%)}
.kidcard>*{position:relative}
.kidcard:active{transform:scale(.97)}
.bigav{width:92px;height:92px;border-radius:30px;display:grid;place-items:center;font-size:52px;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#fff));box-shadow:0 14px 26px color-mix(in srgb,var(--c) 38%,transparent)}
.kidcard.add{color:var(--mute);border:2px dashed var(--line);background:transparent;box-shadow:none}

/* ---------- learn tab ---------- */
.mods{display:grid;gap:14px}
.mod{position:relative;display:flex;align-items:center;gap:16px;text-align:left;padding:18px;border-radius:var(--r);color:#fff;overflow:hidden;width:100%;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#fff));box-shadow:0 14px 28px color-mix(in srgb,var(--c) 35%,transparent);transition:transform .15s}
.mod::after{content:"";position:absolute;right:-30px;top:-40px;width:140px;height:140px;border-radius:50%;background:rgba(255,255,255,.14)}
.mod:active{transform:scale(.98)}
.mod .me{font-size:54px;filter:drop-shadow(0 6px 10px rgba(0,0,0,.2));position:relative;z-index:1}
.mod .mt{flex:1;min-width:0;display:grid;gap:4px;position:relative;z-index:1}
.mod b{font-size:22px;font-weight:800}.mod small{opacity:.92;font-weight:600}
.mod .bar{height:8px;border-radius:99px;background:rgba(255,255,255,.3);overflow:hidden;display:block;margin-top:4px}
.mod .bar i{display:block;height:100%;background:#fff;border-radius:99px;transition:width .5s}
.mod em{font-style:normal;font-size:13px;font-weight:800;opacity:.95}
.mod .go{width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.25);display:grid;place-items:center;position:relative;z-index:1;flex:none}
.mod.soon{display:grid;place-items:center;background:transparent;color:var(--mute);border:2px dashed var(--line);box-shadow:none;font-weight:800;padding:20px}
.mod.soon::after{display:none}
.nextstep{display:flex;align-items:center;gap:14px;width:100%;text-align:left;border:2px solid color-mix(in srgb,var(--accent) 45%,transparent);background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 12%,var(--card)),var(--card))}
.nextstep .flag{font-size:34px}.nextstep small{display:block;color:var(--mute);font-weight:700}.nextstep b{font-size:18px}
.nextstep .go{width:42px;height:42px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none}

/* ---------- path tab ---------- */
.ph{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.bar{height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .5s}
.steps{list-style:none;margin:16px 0 0;padding:0;position:relative}
.steps li{position:relative;padding-bottom:10px}
.steps li:not(:last-child)::before{content:"";position:absolute;left:21px;top:44px;bottom:-4px;width:3px;border-radius:3px;background:var(--line)}
.steps li.done:not(:last-child)::before{background:var(--good)}
.step{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:8px;border-radius:20px;transition:background .15s}
.step:not(:disabled):active{background:var(--card2)}
.node{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:var(--card2);color:var(--mute);flex:none;border:2px solid var(--line)}
.steps li.open .node{background:var(--accent);color:#fff;border-color:transparent;box-shadow:0 6px 14px color-mix(in srgb,var(--accent) 40%,transparent)}
.steps li.done .node{background:var(--good);color:#fff;border-color:transparent}
.steps li.lock .step{opacity:.55}
.stt{flex:1;min-width:0}.stt b{display:block;font-size:16.5px}.stt small{color:var(--mute);font-weight:600;font-size:13px}
.score{font-weight:800;padding:6px 10px;border-radius:12px;background:var(--card2);font-size:14px;flex:none}
.score.ok{background:color-mix(in srgb,var(--good) 18%,var(--card));color:var(--good)}

/* ---------- trophies / reports ---------- */
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tiles.two{grid-template-columns:repeat(2,1fr)}
.tile{background:var(--card);border-radius:22px;padding:16px;box-shadow:var(--shadow);border:1px solid var(--line);display:grid;gap:4px}
.tile b{font-size:26px;font-weight:800;letter-spacing:-.02em}.tile span{color:var(--mute);font-weight:700;font-size:13px}
.chart{width:100%;height:auto;display:block}
.chart .bar-on{fill:var(--accent)}.chart .bar-off{fill:var(--line)}
.chart text{fill:var(--mute);font-size:11px;font-weight:700}.chart text.v{fill:var(--text)}
.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.badge{display:grid;justify-items:center;gap:2px;padding:14px 6px;border-radius:20px;background:var(--card2);opacity:.55}
.badge span{font-size:30px}.badge b{font-size:20px}.badge small{font-size:12px}
.badge.on{opacity:1;background:linear-gradient(135deg,#ffe066,#ffa94d);color:#5c3b00}
.line{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line)}
.line:first-of-type{border-top:0}
.line.col{display:grid;gap:2px}
.line small{display:block;color:var(--mute);font-weight:600}
.subj{margin-bottom:12px}.subj .line{border:0;padding:0 0 6px;justify-content:space-between}

/* ---------- parent ---------- */
.kidrow{display:flex;align-items:center;gap:14px}
.kidrow b{font-size:18px}.kidrow small{display:block}
.steprow{display:flex;align-items:center;gap:12px}
.steprow small{display:block}
.mini{display:flex;flex-wrap:wrap;gap:6px}
.tagc{background:var(--card2);padding:6px 10px;border-radius:12px;font-size:13px;font-weight:700}

/* ---------- quiz ---------- */
.quiz{display:grid;gap:14px}
.quiz>*+*{margin-top:0}
.qtop{display:flex;align-items:center;gap:12px}
.prog{flex:1;height:14px;border-radius:99px;background:var(--line);overflow:hidden}
.prog i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--c,var(--accent)),color-mix(in srgb,var(--c,var(--accent)) 55%,#fff));transition:width .4s}
.count{font-weight:800;color:var(--mute);min-width:44px;text-align:right}
.qtag{justify-self:center;background:var(--card);padding:7px 14px;border-radius:99px;font-weight:800;font-size:14px;box-shadow:var(--shadow);border:1px solid var(--line)}
.qcard{position:relative;text-align:center;background:var(--card);border-radius:34px;padding:26px 16px 22px;box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden}
.qcard::before{content:"";position:absolute;inset:0 0 auto 0;height:110px;background:radial-gradient(ellipse at 50% -10%,color-mix(in srgb,var(--c,var(--accent)) 30%,transparent),transparent 70%)}
.qcard>*{position:relative}
.qem{font-size:clamp(54px,16vw,80px);line-height:1.1}
.speak{position:absolute!important;right:12px;top:12px}
.eq{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 14px;font-size:clamp(26px,8vw,40px);font-weight:800;margin-top:8px}
.eq .q{color:var(--bad)}.eq .amt{color:var(--c,var(--accent))}
.sentence{font-size:clamp(15px,4vw,18px);margin-top:8px;color:var(--mute);font-weight:600}
.hint{margin-top:12px;background:color-mix(in srgb,var(--warn) 18%,var(--card));border-radius:16px;padding:10px 14px;font-size:clamp(17px,4.6vw,22px);font-weight:700;word-break:break-word}
.msg{font-size:clamp(22px,6.5vw,30px);font-weight:800;min-height:40px;text-align:center}
.answers{display:grid;gap:12px}
.ans{background:var(--card);font-size:clamp(28px,8.5vw,42px);font-weight:800;padding:16px;border-radius:24px;box-shadow:var(--shadow);border:2px solid var(--line);color:var(--c,var(--accent));transition:transform .12s,background .15s,border-color .15s}
.ans.long{font-size:clamp(20px,6vw,28px)}
.ans:not(:disabled):active{transform:scale(.97)}
.ans:disabled{opacity:.45}
.ans.sel{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--card))}
.ans.ok{background:color-mix(in srgb,var(--good) 20%,var(--card));border-color:var(--good);color:var(--good)}
.ans.no{background:color-mix(in srgb,var(--bad) 16%,var(--card));border-color:var(--bad);color:var(--bad);animation:shake .4s}
@keyframes shake{25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.shake{animation:shake .4s}
.disp{background:var(--card);border:2px dashed color-mix(in srgb,var(--c,var(--accent)) 55%,transparent);border-radius:24px;font-size:clamp(34px,10vw,52px);font-weight:800;text-align:center;padding:8px 20px;min-height:76px;color:var(--c,var(--accent));display:grid;place-items:center}
.disp.okd{border-color:var(--good);color:var(--good)}
.pad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:min(100%,380px);margin:0 auto}
.pad button{background:var(--card);font-size:clamp(26px,7.5vw,34px);font-weight:800;padding:12px 0;border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line);display:grid;place-items:center;transition:transform .1s,background .15s}
.pad button:active{transform:scale(.94);background:var(--card2)}
.pad .del{background:color-mix(in srgb,var(--warn) 16%,var(--card))}
.pad .go{grid-column:1/-1;background:linear-gradient(135deg,var(--good),#38d9a9);color:#fff;border:0;box-shadow:0 10px 22px rgba(18,184,134,.3)}

/* ---------- result ---------- */
.result{display:grid;gap:16px;justify-items:center;text-align:center}
.result>*+*{margin-top:0}
.result .stack,.result .tiles,.result .card{width:100%}
.medal{font-size:64px;animation:bob 2.4s ease-in-out infinite}
.ring{width:170px;height:170px}
.ring .rb{fill:none;stroke:var(--line);stroke-width:11}
.ring .rf{fill:none;stroke:var(--accent);stroke-width:11;stroke-linecap:round;transition:stroke-dashoffset 1s ease}
.ring text{font-size:30px;font-weight:800;fill:var(--text)}
.lead{color:var(--mute);font-weight:700;font-size:17px;max-width:30ch}

/* ---------- bottom navigation ---------- */
#nav{position:fixed;left:0;right:0;bottom:calc(10px + var(--safe-b));display:flex;justify-content:center;z-index:20;pointer-events:none}
.navbar{pointer-events:auto;display:flex;gap:4px;padding:6px;border-radius:30px;background:color-mix(in srgb,var(--card) 80%,transparent);backdrop-filter:blur(18px) saturate(1.5);-webkit-backdrop-filter:blur(18px) saturate(1.5);box-shadow:var(--shadow);border:1px solid var(--line)}
.navbar button{display:grid;justify-items:center;gap:2px;padding:8px 14px;border-radius:24px;color:var(--mute);font-size:11.5px;font-weight:800;min-width:72px;transition:background .2s,color .2s}
.navbar button.on{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent)}

/* ---------- overlays ---------- */
#modal{position:fixed;inset:0;z-index:50;display:none;align-items:flex-end;justify-content:center}
#modal.open{display:flex}
.scrim{position:absolute;inset:0;background:rgba(14,17,36,.5);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);animation:fade .2s}
@keyframes fade{from{opacity:0}}
.sheet{position:relative;width:100%;max-width:560px;max-height:92vh;overflow-y:auto;background:var(--card);border-radius:32px 32px 0 0;padding:22px 20px calc(24px + var(--safe-b));box-shadow:0 -20px 50px rgba(0,0,0,.25);animation:sheet .3s cubic-bezier(.2,.8,.2,1);display:grid;gap:14px}
.sheet::before{content:"";width:44px;height:5px;border-radius:5px;background:var(--line);justify-self:center;margin-top:-8px}
@keyframes sheet{from{transform:translateY(40px);opacity:0}}
.sheet h2{font-size:22px;font-weight:800}
@media (min-width:700px){#modal{align-items:center}.sheet{border-radius:32px}}
.sheet.pin{text-align:center;justify-items:center}
.dots{display:flex;gap:16px;margin:6px 0 4px}
.dots i{width:18px;height:18px;border-radius:50%;border:2px solid var(--mute);transition:all .15s}
.dots i.f{background:var(--accent);border-color:var(--accent);transform:scale(1.1)}
.dots.bad{animation:shake .4s}.dots.bad i{border-color:var(--bad);background:var(--bad)}
.pinpad{width:min(100%,300px)}
.pinpad button{padding:14px 0}
.pinpad .txt{font-size:15px;font-weight:800;color:var(--mute);box-shadow:none;background:none;border:0}
#toast{position:fixed;left:50%;bottom:calc(100px + var(--safe-b));transform:translate(-50%,20px);background:var(--text);color:var(--bg);padding:12px 18px;border-radius:99px;font-weight:700;font-size:14.5px;opacity:0;pointer-events:none;transition:all .25s;z-index:80;max-width:90vw;text-align:center}
#toast.show{opacity:1;transform:translate(-50%,0)}
.conf{position:fixed;left:50%;top:40%;font-size:34px;pointer-events:none;z-index:90;animation:fly 1.1s ease-out forwards}
@keyframes fly{to{transform:translate(var(--dx),var(--dy)) rotate(var(--r));opacity:0}}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- graphical learning path ---------- */
.pmap{position:relative;margin:18px 0 4px;--track:color-mix(in srgb,var(--mute) 22%,transparent)}
.pmap svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.pmap .road path,.pmap .roadg path{fill:none;stroke-linecap:round;vector-effect:non-scaling-stroke}
.pmap .road path{stroke:var(--track);stroke-width:14px}
.pmap .roadg path{stroke:var(--good);stroke-width:14px;filter:drop-shadow(0 4px 8px color-mix(in srgb,var(--good) 40%,transparent))}
.pstart{position:absolute;left:50%;transform:translate(-50%,-50%);padding:6px 14px;border-radius:99px;background:var(--card2);border:2px solid var(--line);font-weight:800;font-size:13px;color:var(--mute);white-space:nowrap}
.pn{position:absolute;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;display:grid;place-items:center;font-size:22px;font-weight:800;background:var(--card2);color:var(--mute);border:4px solid var(--card);box-shadow:0 6px 16px rgba(27,31,59,.18);transition:transform .15s}
.pn:active{transform:translate(-50%,-50%) scale(.93)}
.pn.test{border-radius:20px}
.pn.open{background:color-mix(in srgb,var(--mute) 30%,var(--card2));color:var(--text)}
.pn.lock{opacity:.7}
.pn.done{background:var(--good);color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--good) 45%,transparent)}
.pn.cur{background:color-mix(in srgb,var(--mute) 30%,var(--card2));color:var(--text);box-shadow:0 0 0 5px color-mix(in srgb,var(--accent) 55%,transparent),0 8px 20px rgba(27,31,59,.2);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 11px color-mix(in srgb,var(--accent) 12%,transparent),0 8px 20px rgba(27,31,59,.2)}}
.pn .kb{position:absolute;right:-8px;bottom:-8px;font-size:15px;width:26px;height:26px;border-radius:50%;background:var(--card);display:grid;place-items:center;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.pn .here .av{width:34px;height:34px;font-size:20px;border:3px solid var(--card);box-shadow:0 4px 10px rgba(0,0,0,.25)}
.pl small .youhere{font-style:normal;font-weight:800;color:var(--accent)}
@keyframes bob{50%{transform:translateY(-8px) rotate(3deg)}}
.hero h1{font-size:clamp(30px,8vw,40px);font-weight:800;margin-top:10px}
.hero .sub{color:var(--mute);margin-top:6px;font-weight:600}
.kids{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.kidcard{display:grid;justify-items:center;gap:10px;padding:26px 12px;border-radius:30px;background:var(--card);box-shadow:var(--shadow);border:1px solid var(--line);font-size:18px;font-weight:800;transition:transform .15s;position:relative;overflow:hidden}
.kidcard::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0,color-mix(in srgb,var(--c,var(--accent)) 28%,transparent),transparent 70%)}
.kidcard>*{position:relative}
.kidcard:active{transform:scale(.97)}
.bigav{width:92px;height:92px;border-radius:30px;display:grid;place-items:center;font-size:52px;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#fff));box-shadow:0 14px 26px color-mix(in srgb,var(--c) 38%,transparent)}
.kidcard.add{color:var(--mute);border:2px dashed var(--line);background:transparent;box-shadow:none}

/* ---------- learn tab ---------- */
.mods{display:grid;gap:14px}
.mod{position:relative;display:flex;align-items:center;gap:16px;text-align:left;padding:18px;border-radius:var(--r);color:#fff;overflow:hidden;width:100%;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 55%,#fff));box-shadow:0 14px 28px color-mix(in srgb,var(--c) 35%,transparent);transition:transform .15s}
.mod::after{content:"";position:absolute;right:-30px;top:-40px;width:140px;height:140px;border-radius:50%;background:rgba(255,255,255,.14)}
.mod:active{transform:scale(.98)}
.mod .me{font-size:54px;filter:drop-shadow(0 6px 10px rgba(0,0,0,.2));position:relative;z-index:1}
.mod .mt{flex:1;min-width:0;display:grid;gap:4px;position:relative;z-index:1}
.mod b{font-size:22px;font-weight:800}.mod small{opacity:.92;font-weight:600}
.mod .bar{height:8px;border-radius:99px;background:rgba(255,255,255,.3);overflow:hidden;display:block;margin-top:4px}
.mod .bar i{display:block;height:100%;background:#fff;border-radius:99px;transition:width .5s}
.mod em{font-style:normal;font-size:13px;font-weight:800;opacity:.95}
.mod .go{width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.25);display:grid;place-items:center;position:relative;z-index:1;flex:none}
.mod.soon{display:grid;place-items:center;background:transparent;color:var(--mute);border:2px dashed var(--line);box-shadow:none;font-weight:800;padding:20px}
.mod.soon::after{display:none}
.nextstep{display:flex;align-items:center;gap:14px;width:100%;text-align:left;border:2px solid color-mix(in srgb,var(--accent) 45%,transparent);background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 12%,var(--card)),var(--card))}
.nextstep .flag{font-size:34px}.nextstep small{display:block;color:var(--mute);font-weight:700}.nextstep b{font-size:18px}
.nextstep .go{width:42px;height:42px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none}

/* ---------- path tab ---------- */
.ph{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.bar{height:10px;border-radius:99px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .5s}
.steps{list-style:none;margin:16px 0 0;padding:0;position:relative}
.steps li{position:relative;padding-bottom:10px}
.steps li:not(:last-child)::before{content:"";position:absolute;left:21px;top:44px;bottom:-4px;width:3px;border-radius:3px;background:var(--line)}
.steps li.done:not(:last-child)::before{background:var(--good)}
.step{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:8px;border-radius:20px;transition:background .15s}
.step:not(:disabled):active{background:var(--card2)}
.node{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:var(--card2);color:var(--mute);flex:none;border:2px solid var(--line)}
.steps li.open .node{background:var(--accent);color:#fff;border-color:transparent;box-shadow:0 6px 14px color-mix(in srgb,var(--accent) 40%,transparent)}
.steps li.done .node{background:var(--good);color:#fff;border-color:transparent}
.steps li.lock .step{opacity:.55}
.stt{flex:1;min-width:0}.stt b{display:block;font-size:16.5px}.stt small{color:var(--mute);font-weight:600;font-size:13px}
.score{font-weight:800;padding:6px 10px;border-radius:12px;background:var(--card2);font-size:14px;flex:none}
.score.ok{background:color-mix(in srgb,var(--good) 18%,var(--card));color:var(--good)}

/* ---------- trophies / reports ---------- */
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tiles.two{grid-template-columns:repeat(2,1fr)}
.tile{background:var(--card);border-radius:22px;padding:16px;box-shadow:var(--shadow);border:1px solid var(--line);display:grid;gap:4px}
.tile b{font-size:26px;font-weight:800;letter-spacing:-.02em}.tile span{color:var(--mute);font-weight:700;font-size:13px}
.chart{width:100%;height:auto;display:block}
.chart .bar-on{fill:var(--accent)}.chart .bar-off{fill:var(--line)}
.chart text{fill:var(--mute);font-size:11px;font-weight:700}.chart text.v{fill:var(--text)}
.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.badge{display:grid;justify-items:center;gap:2px;padding:14px 6px;border-radius:20px;background:var(--card2);opacity:.55}
.badge span{font-size:30px}.badge b{font-size:20px}.badge small{font-size:12px}
.badge.on{opacity:1;background:linear-gradient(135deg,#ffe066,#ffa94d);color:#5c3b00}
.line{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line)}
.line:first-of-type{border-top:0}
.line.col{display:grid;gap:2px}
.line small{display:block;color:var(--mute);font-weight:600}
.subj{margin-bottom:12px}.subj .line{border:0;padding:0 0 6px;justify-content:space-between}

/* ---------- parent ---------- */
.kidrow{display:flex;align-items:center;gap:14px}
.kidrow b{font-size:18px}.kidrow small{display:block}
.steprow{display:flex;align-items:center;gap:12px}
.steprow small{display:block}
.mini{display:flex;flex-wrap:wrap;gap:6px}
.tagc{background:var(--card2);padding:6px 10px;border-radius:12px;font-size:13px;font-weight:700}

/* ---------- quiz ---------- */
.quiz{display:grid;gap:14px}
.quiz>*+*{margin-top:0}
.qtop{display:flex;align-items:center;gap:12px}
.prog{flex:1;height:14px;border-radius:99px;background:var(--line);overflow:hidden}
.prog i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--c,var(--accent)),color-mix(in srgb,var(--c,var(--accent)) 55%,#fff));transition:width .4s}
.count{font-weight:800;color:var(--mute);min-width:44px;text-align:right}
.qtag{justify-self:center;background:var(--card);padding:7px 14px;border-radius:99px;font-weight:800;font-size:14px;box-shadow:var(--shadow);border:1px solid var(--line)}
.qcard{position:relative;text-align:center;background:var(--card);border-radius:34px;padding:26px 16px 22px;box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden}
.qcard::before{content:"";position:absolute;inset:0 0 auto 0;height:110px;background:radial-gradient(ellipse at 50% -10%,color-mix(in srgb,var(--c,var(--accent)) 30%,transparent),transparent 70%)}
.qcard>*{position:relative}
.qem{font-size:clamp(54px,16vw,80px);line-height:1.1}
.speak{position:absolute!important;right:12px;top:12px}
.eq{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 14px;font-size:clamp(26px,8vw,40px);font-weight:800;margin-top:8px}
.eq .q{color:var(--bad)}.eq .amt{color:var(--c,var(--accent))}
.sentence{font-size:clamp(15px,4vw,18px);margin-top:8px;color:var(--mute);font-weight:600}
.hint{margin-top:12px;background:color-mix(in srgb,var(--warn) 18%,var(--card));border-radius:16px;padding:10px 14px;font-size:clamp(17px,4.6vw,22px);font-weight:700;word-break:break-word}
.msg{font-size:clamp(22px,6.5vw,30px);font-weight:800;min-height:40px;text-align:center}
.answers{display:grid;gap:12px}
.ans{background:var(--card);font-size:clamp(28px,8.5vw,42px);font-weight:800;padding:16px;border-radius:24px;box-shadow:var(--shadow);border:2px solid var(--line);color:var(--c,var(--accent));transition:transform .12s,background .15s,border-color .15s}
.ans.long{font-size:clamp(20px,6vw,28px)}
.ans:not(:disabled):active{transform:scale(.97)}
.ans:disabled{opacity:.45}
.ans.sel{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--card))}
.ans.ok{background:color-mix(in srgb,var(--good) 20%,var(--card));border-color:var(--good);color:var(--good)}
.ans.no{background:color-mix(in srgb,var(--bad) 16%,var(--card));border-color:var(--bad);color:var(--bad);animation:shake .4s}
@keyframes shake{25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.shake{animation:shake .4s}
.disp{background:var(--card);border:2px dashed color-mix(in srgb,var(--c,var(--accent)) 55%,transparent);border-radius:24px;font-size:clamp(34px,10vw,52px);font-weight:800;text-align:center;padding:8px 20px;min-height:76px;color:var(--c,var(--accent));display:grid;place-items:center}
.disp.okd{border-color:var(--good);color:var(--good)}
.pad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:min(100%,380px);margin:0 auto}
.pad button{background:var(--card);font-size:clamp(26px,7.5vw,34px);font-weight:800;padding:12px 0;border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line);display:grid;place-items:center;transition:transform .1s,background .15s}
.pad button:active{transform:scale(.94);background:var(--card2)}
.pad .del{background:color-mix(in srgb,var(--warn) 16%,var(--card))}
.pad .go{grid-column:1/-1;background:linear-gradient(135deg,var(--good),#38d9a9);color:#fff;border:0;box-shadow:0 10px 22px rgba(18,184,134,.3)}

/* ---------- result ---------- */
.result{display:grid;gap:16px;justify-items:center;text-align:center}
.result>*+*{margin-top:0}
.result .stack,.result .tiles,.result .card{width:100%}
.medal{font-size:64px;animation:bob 2.4s ease-in-out infinite}
.ring{width:170px;height:170px}
.ring .rb{fill:none;stroke:var(--line);stroke-width:11}
.ring .rf{fill:none;stroke:var(--accent);stroke-width:11;stroke-linecap:round;transition:stroke-dashoffset 1s ease}
.ring text{font-size:30px;font-weight:800;fill:var(--text)}
.lead{color:var(--mute);font-weight:700;font-size:17px;max-width:30ch}

/* ---------- bottom navigation ---------- */
#nav{position:fixed;left:0;right:0;bottom:calc(10px + var(--safe-b));display:flex;justify-content:center;z-index:20;pointer-events:none}
.navbar{pointer-events:auto;display:flex;gap:4px;padding:6px;border-radius:30px;background:color-mix(in srgb,var(--card) 80%,transparent);backdrop-filter:blur(18px) saturate(1.5);-webkit-backdrop-filter:blur(18px) saturate(1.5);box-shadow:var(--shadow);border:1px solid var(--line)}
.navbar button{display:grid;justify-items:center;gap:2px;padding:8px 14px;border-radius:24px;color:var(--mute);font-size:11.5px;font-weight:800;min-width:72px;transition:background .2s,color .2s}
.navbar button.on{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent)}

/* ---------- overlays ---------- */
#modal{position:fixed;inset:0;z-index:50;display:none;align-items:flex-end;justify-content:center}
#modal.open{display:flex}
.scrim{position:absolute;inset:0;background:rgba(14,17,36,.5);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);animation:fade .2s}
@keyframes fade{from{opacity:0}}
.sheet{position:relative;width:100%;max-width:560px;max-height:92vh;overflow-y:auto;background:var(--card);border-radius:32px 32px 0 0;padding:22px 20px calc(24px + var(--safe-b));box-shadow:0 -20px 50px rgba(0,0,0,.25);animation:sheet .3s cubic-bezier(.2,.8,.2,1);display:grid;gap:14px}
.sheet::before{content:"";width:44px;height:5px;border-radius:5px;background:var(--line);justify-self:center;margin-top:-8px}
@keyframes sheet{from{transform:translateY(40px);opacity:0}}
.sheet h2{font-size:22px;font-weight:800}
@media (min-width:700px){#modal{align-items:center}.sheet{border-radius:32px}}
.sheet.pin{text-align:center;justify-items:center}
.dots{display:flex;gap:16px;margin:6px 0 4px}
.dots i{width:18px;height:18px;border-radius:50%;border:2px solid var(--mute);transition:all .15s}
.dots i.f{background:var(--accent);border-color:var(--accent);transform:scale(1.1)}
.dots.bad{animation:shake .4s}.dots.bad i{border-color:var(--bad);background:var(--bad)}
.pinpad{width:min(100%,300px)}
.pinpad button{padding:14px 0}
.pinpad .txt{font-size:15px;font-weight:800;color:var(--mute);box-shadow:none;background:none;border:0}
#toast{position:fixed;left:50%;bottom:calc(100px + var(--safe-b));transform:translate(-50%,20px);background:var(--text);color:var(--bg);padding:12px 18px;border-radius:99px;font-weight:700;font-size:14.5px;opacity:0;pointer-events:none;transition:all .25s;z-index:80;max-width:90vw;text-align:center}
#toast.show{opacity:1;transform:translate(-50%,0)}
.conf{position:fixed;left:50%;top:40%;font-size:34px;pointer-events:none;z-index:90;animation:fly 1.1s ease-out forwards}
@keyframes fly{to{transform:translate(var(--dx),var(--dy)) rotate(var(--r));opacity:0}}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- graphical learning path ---------- */
.pmap{position:relative;margin:18px 0 4px;--track:color-mix(in srgb,var(--mute) 22%,transparent)}
.pmap svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.pmap .road path,.pmap .roadg path{fill:none;stroke-linecap:round;vector-effect:non-scaling-stroke}
.pmap .road path{stroke:var(--track);stroke-width:14px}
.pmap .roadg path{stroke:var(--good);stroke-width:14px;filter:drop-shadow(0 4px 8px color-mix(in srgb,var(--good) 40%,transparent))}
.pstart{position:absolute;left:50%;transform:translate(-50%,-50%);padding:6px 14px;border-radius:99px;background:var(--card2);border:2px solid var(--line);font-weight:800;font-size:13px;color:var(--mute);white-space:nowrap}
.pn{position:absolute;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;display:grid;place-items:center;font-size:22px;font-weight:800;background:var(--card2);color:var(--mute);border:4px solid var(--card);box-shadow:0 6px 16px rgba(27,31,59,.18);transition:transform .15s}
.pn:active{transform:translate(-50%,-50%) scale(.93)}
.pn.test{border-radius:20px}
.pn.open{background:color-mix(in srgb,var(--mute) 30%,var(--card2));color:var(--text)}
.pn.lock{opacity:.7}
.pn.done{background:var(--good);color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--good) 45%,transparent)}
.pn.cur{background:color-mix(in srgb,var(--mute) 30%,var(--card2));color:var(--text);box-shadow:0 0 0 5px color-mix(in srgb,var(--accent) 55%,transparent),0 8px 20px rgba(27,31,59,.2);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 11px color-mix(in srgb,var(--accent) 12%,transparent),0 8px 20px rgba(27,31,59,.2)}}
.pn .kb{position:absolute;right:-8px;bottom:-8px;font-size:15px;width:26px;height:26px;border-radius:50%;background:var(--card);display:grid;place-items:center;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.pn .here{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:2px;white-space:nowrap;animation:hereBob 1.4s ease-in-out infinite}
.pn .here em{font-style:normal;font-size:12px;font-weight:800;padding:3px 9px;border-radius:99px;background:var(--accent);color:#fff}
@keyframes bob{50%{transform:translateY(-5px)}}
.pn.fin{width:70px;height:70px;font-size:32px}
.pn.fin.lock{filter:grayscale(1);opacity:.55}
.pl{position:absolute;transform:translateY(-50%);display:grid;gap:2px;line-height:1.2}
.pl.r{text-align:right}
.pl b{font-size:16px}.pl small{color:var(--mute);font-size:12.5px}
.pl.lock{opacity:.55}.pl.done b{color:var(--good)}
.alldone{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:10px 12px;margin-top:14px;padding:12px 14px;border-radius:20px;background:color-mix(in srgb,var(--good) 14%,var(--card2));border:2px solid color-mix(in srgb,var(--good) 40%,transparent)}
.alldone>span{font-size:30px}.alldone>.btn{grid-column:1/-1}.alldone small{display:block;color:var(--mute);font-size:13px}
.btn.sm{padding:10px 14px;font-size:14px;width:auto}
@media (prefers-reduced-motion:reduce){.pn.cur,.pn .here{animation:none}}

/* ---------- offline worksheet entry ---------- */
.trow{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:18px;background:var(--card2);border:2px solid transparent}
.trow.ok{border-color:color-mix(in srgb,var(--good) 55%,transparent);background:color-mix(in srgb,var(--good) 10%,var(--card2))}
.trow.no{border-color:color-mix(in srgb,var(--bad) 45%,transparent)}
.trow .tn{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;flex:none}
.trow .tq{font-weight:700;margin-bottom:8px}
.input.num{max-width:160px;font-size:18px;font-weight:800;text-align:center}
.chip:disabled{opacity:.6}
.pill{white-space:nowrap}.ph h3{min-width:0}
@keyframes hereBob{50%{transform:translateX(-50%) translateY(-5px)}}
.fig{width:100%;max-width:230px;height:auto;display:block;margin:6px auto 0}
.fig.clock{max-width:210px}.fig.sm{max-width:110px;margin:0 0 8px}
.fig .fg{fill:color-mix(in srgb,var(--c,var(--accent)) 24%,transparent);stroke:var(--c,var(--accent));stroke-width:2.4;stroke-linejoin:round}
.fig .fn{fill:none;stroke:var(--c,var(--accent));stroke-width:2.4;stroke-linejoin:round}
.fig .fk{stroke-width:1.2;stroke-linejoin:round}
.fig .fl{stroke:var(--text);stroke-width:1;stroke-linecap:round}.fig .fl.w2{stroke-width:2.4;stroke:var(--c,var(--accent))}.fig .fl.w3{stroke-width:3.4}
.fig .ft{fill:var(--text);font-weight:800;font-family:inherit}
.emo{font-size:clamp(28px,8vw,40px);letter-spacing:.06em;line-height:1.3;word-break:break-all}
.frac{display:inline-grid;text-align:center;vertical-align:middle;font-size:.8em;line-height:1.05}
.frac i{font-style:normal;padding:0 .25em}.frac i:first-child{border-bottom:3px solid currentColor}
.qcard.story .sentence{font-size:clamp(18px,4.8vw,22px);color:var(--text);text-align:left;line-height:1.45;font-weight:700;margin-top:10px}
.qcard.story .qem{font-size:clamp(40px,11vw,56px)}
.helpq{position:absolute!important;left:12px;top:12px}
.extratag{justify-self:center;background:color-mix(in srgb,var(--warn) 20%,var(--card));padding:6px 14px;border-radius:99px;font-weight:800;font-size:13.5px;border:1px solid var(--line)}
.modwrap{position:relative}
.helpbtn{position:absolute;top:10px;right:10px;z-index:3;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.28);color:#fff;display:grid;place-items:center}
.helpbtn:active{background:rgba(255,255,255,.5)}
.mixcard{position:relative;display:flex;align-items:center;gap:16px;text-align:left;padding:18px;border-radius:var(--r);color:#fff;overflow:hidden;width:100%;background:linear-gradient(135deg,var(--accent),#ff7ab6);box-shadow:0 14px 28px color-mix(in srgb,var(--accent) 35%,transparent);transition:transform .15s}
.mixcard:active{transform:scale(.98)}
.mixcard .me{font-size:54px;filter:drop-shadow(0 6px 10px rgba(0,0,0,.2))}
.mixcard .mt{flex:1;min-width:0;display:grid;gap:4px}.mixcard b{font-size:21px;font-weight:800}.mixcard small{opacity:.92;font-weight:600}
.mixcard .bar{height:8px;border-radius:99px;background:rgba(255,255,255,.3);overflow:hidden;display:block;margin-top:4px}.mixcard .bar i{display:block;height:100%;background:#fff;border-radius:99px}
.mixcard em{font-style:normal;font-size:13px;font-weight:800}
.mixcard .go{width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.25);display:grid;place-items:center;flex:none}
.helpbody{display:grid;gap:10px}.helpbody p{font-size:17px;line-height:1.5;font-weight:600}
.mods{margin-top:2px}
.answers.g3{grid-template-columns:repeat(3,1fr)}.answers.g4{grid-template-columns:repeat(2,1fr)}.answers.g2{grid-template-columns:repeat(2,1fr)}
.ans.pic{display:grid;place-items:center;font-size:clamp(46px,14vw,70px);padding:12px 6px;line-height:1.1}
.ans.pic .fig.ch{max-width:74px;margin:0}
.fig.sw{max-width:130px}
.bigem{font-size:clamp(70px,22vw,110px);line-height:1.1;display:block;text-align:center}
.amt.lw{font-size:clamp(34px,10vw,50px);word-break:break-word;line-height:1.15;display:block;text-align:center}
.sayw{margin-top:6px}
.hearbig{font-size:46px;width:96px;height:96px;border-radius:50%;background:color-mix(in srgb,var(--c,var(--accent)) 16%,var(--card));border:3px solid var(--c,var(--accent));display:grid;place-items:center;margin:4px auto}
.hearbig:active{transform:scale(.94)}
.saybox{display:grid;gap:12px;justify-items:center;margin-top:6px}
.sayrow{display:flex;gap:14px;align-items:center;justify-content:center;width:100%}
.hearbtn{width:auto;padding:14px 18px;font-size:16px}
.micbtn{display:grid;place-items:center;gap:2px;width:132px;height:132px;border-radius:50%;background:linear-gradient(135deg,var(--c,var(--accent)),color-mix(in srgb,var(--c,var(--accent)) 60%,#fff));color:#fff;font-weight:800;font-size:15px;box-shadow:0 14px 30px color-mix(in srgb,var(--c,var(--accent)) 40%,transparent)}
.micbtn .micico{font-size:44px;line-height:1}
.micbtn.on{animation:micPulse 1s ease-in-out infinite}
@keyframes micPulse{50%{box-shadow:0 0 0 18px color-mix(in srgb,var(--c,var(--accent)) 18%,transparent)}}
.heard{min-height:28px;font-weight:700;color:var(--mute);text-align:center}
.linkbtn{background:none;color:var(--mute);text-decoration:underline;font-size:14px;padding:6px}
#selfok{width:auto;padding:14px 20px}
.tiles.three{grid-template-columns:repeat(3,1fr)}
.qclock{font-weight:800;color:var(--mute);font-size:13px;white-space:nowrap}
.timeline{margin:-4px 0 6px}
.dl{font-weight:800;white-space:nowrap}.dl.up{color:var(--good)}.dl.down{color:var(--bad)}
.trend{text-align:right;font-weight:800;font-size:14px;line-height:1.5}
.cmp{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:8px 6px;align-items:center;font-size:14px}.cmp b{font-size:12px;color:var(--mute);text-transform:uppercase;letter-spacing:.04em}
.wtab{display:grid;grid-template-columns:1.3fr .8fr .8fr .8fr .6fr;gap:8px 4px;font-size:14px}.wtab b{font-size:12px;color:var(--mute);text-transform:uppercase;letter-spacing:.04em}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:5px;background:var(--card2);border-radius:18px;margin:2px 0}
.seg button{padding:11px;border-radius:14px;font-weight:800;color:var(--mute)}
.seg button.on{background:var(--card);color:var(--accent);box-shadow:var(--shadow)}
.badtxt{color:var(--bad);font-weight:800}
.inem{font-size:22px;margin-right:4px}
.rowlink{width:100%;text-align:left;background:none;color:inherit;display:flex;align-items:center;gap:10px}
.rowlink .ic{color:var(--mute);flex:none}
.seg.three{grid-template-columns:repeat(3,1fr)}
.seg.three button{font-size:13px;padding:10px 4px}
.rv{display:grid;gap:8px;border-left:6px solid var(--good)}
.rv.bad{border-left-color:var(--bad)}.rv.retry{border-left-color:var(--warn)}
.rv .line.top{align-items:flex-start;gap:10px}
.rvic{font-size:20px;line-height:1.2}
.rv small{display:block}
.rvmeta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:14px}
.why{display:grid;gap:4px;background:color-mix(in srgb,var(--bad) 8%,var(--card2));padding:10px 12px;border-radius:14px;font-size:14px}
.rv.retry .why{background:color-mix(in srgb,var(--warn) 12%,var(--card2))}
.hintbox{background:color-mix(in srgb,var(--warn) 14%,var(--card));padding:10px 12px;border-radius:14px;font-size:14px}
/* helper friend */
.helpq{z-index:5;left:8px!important;top:8px!important;width:auto!important;height:auto!important;padding:0!important;background:transparent!important;box-shadow:none!important;border:0!important}
.speak{z-index:5}
.helpq:active svg{transform:scale(.92)}
.helpbtn{background:rgba(255,255,255,.9)!important;width:40px!important;height:40px!important}
.helpbtn svg{width:30px;height:30px}
.friend{filter:drop-shadow(0 3px 4px rgba(0,0,0,.18))}
.friendrow{display:flex;align-items:center;gap:12px}
.friendrow .bubble{position:relative;background:var(--card2,#eef3ff);border-radius:20px;padding:12px 14px;display:grid;gap:2px;flex:1}
.friendrow .bubble::before{content:"";position:absolute;left:-8px;top:50%;margin-top:-8px;border:8px solid transparent;border-left:0;border-right-color:var(--card2,#eef3ff)}
.friendrow .bubble b{font-size:18px}.friendrow .bubble small{color:var(--mute)}
.helpbody p{margin:0 0 8px;line-height:1.45}
.helpstep{display:grid;gap:6px;background:var(--card2,#eef3ff);border-radius:16px;padding:12px 14px;margin-bottom:8px}
.helpstep p{margin:0;line-height:1.45}
.eqmini{font-size:22px;font-weight:800}
.morebtn{display:flex;align-items:center;justify-content:center;gap:8px}
.range{width:100%;height:36px;accent-color:var(--accent,#6c5ce7)}
.sel{width:100%;padding:12px;border-radius:14px;border:2px solid var(--line);background:var(--card);color:var(--text);font:inherit;font-size:16px}
.qtop .iconbtn.sm{flex:none}

.top{gap:10px}.top .grow{flex:1;min-width:0}
.rowbtn.cur{border-color:var(--accent,#6c5ce7);background:color-mix(in srgb,var(--accent,#6c5ce7) 10%,var(--card))}
.guide{display:grid;gap:12px;text-align:center;justify-items:center}.guide p{line-height:1.5;margin:0}.guide .stack{width:100%}
.gdots{display:flex;gap:8px}.gdots i{width:9px;height:9px;border-radius:50%;background:var(--line)}.gdots i.on{background:var(--accent,#6c5ce7);width:22px;border-radius:6px}
.guide{position:relative}.gx{position:absolute;right:0;top:-6px}

/* quiz: no header, category + menu at the bottom */
.quiz{padding-bottom:calc(84px + var(--safe-b,0px))}
.qbar{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(12px + var(--safe-b,0px));max-width:560px;margin:0 auto;background:linear-gradient(to top,var(--bg,#f4f1ff) 62%,transparent)}
.qbar .qtag{justify-self:auto;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.qbar .qmenubtn{width:50px;height:50px;flex:none}

/* ---- cloud: login, family ---- */
.cform .cmsg{min-height:1.2em;margin:0;font-size:.95rem}
.cmsg.err,.err{color:#c92a2a}.cmsg.ok{color:#2b8a3e}
.cnote{text-align:center;margin:14px 16px}
.vtag{display:inline-block;font-size:.72rem;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--accent,#6c5ce7);color:#fff;vertical-align:middle}
.mrow .btnrow{display:flex;flex-wrap:wrap;gap:8px}.btn.sm{padding:8px 12px;font-size:.85rem;min-height:0}
.codebox{font-family:ui-monospace,Menlo,monospace;font-size:1rem;word-break:break-all;background:rgba(108,92,231,.1);border-radius:12px;padding:12px;user-select:all}
.cloudcard{border-top:1px solid rgba(0,0,0,.08);padding-top:12px;margin-top:4px}

.relnotes ul{margin:6px 0 0;padding-left:18px}.relnotes li{margin:3px 0}.relnotes h3{margin:0}
.relnotes{max-height:48vh;overflow-y:auto;align-content:start}.relnotes .card{padding:12px 14px}

.qbar .qback{display:inline-flex;align-items:center;gap:4px;flex:none;height:44px;padding:0 14px 0 10px;border-radius:22px;border:0;background:var(--card2,#eceafd);color:var(--text);font:inherit;font-weight:700;font-size:.9rem;cursor:pointer}
.qbar .qback svg{width:18px;height:18px}