:root{--ink:#1e1b4b;--text:#334155;--muted:#64748b;--line:#e5e7f2;--bg:#f5f7ff;--card:#fff;--pri:#6d28d9;--pri2:#7c3aed;--green:#16a34a;--red:#dc2626;--yellow:#f5b301;--shadow:0 2px 4px rgba(30,27,75,.05),0 10px 28px rgba(30,27,75,.08)}
*{box-sizing:border-box}
body{margin:0;font-family:Nunito,"Baloo 2",Inter,system-ui,sans-serif;color:var(--text);background:radial-gradient(900px 400px at 100% -10%,#ede9fe,transparent),radial-gradient(700px 400px at -10% 10%,#dcfce7,transparent),var(--bg);min-height:100vh;font-size:17px;line-height:1.55}
h1,h2,h3{font-family:"Baloo 2",Nunito,sans-serif;color:var(--ink);line-height:1.15;margin:0 0 .4em}
h1{font-size:clamp(1.8rem,5vw,2.6rem)}h2{font-size:1.5rem}h3{font-size:1.15rem}
a{color:var(--pri)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.top{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:10px;height:62px}
.brand{display:flex;align-items:center;gap:9px;font-family:"Baloo 2",sans-serif;font-weight:800;font-size:1.3rem;color:var(--ink);text-decoration:none}
.brand span{background:linear-gradient(135deg,#f59e0b,#ec4899);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand i{font-style:normal;width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#7c3aed,#ec4899);display:grid;place-items:center;font-size:1.2rem}
#hud{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow:hidden}
.hud-av{font-size:1.5rem}.hud-n{font-weight:800;color:var(--ink);max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:560px){.hud-n{display:none}#hud .pill:last-child{display:none}.brand{font-size:1.1rem}}
.pill{display:inline-flex;align-items:center;gap:4px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-weight:800;font-size:.82rem;color:var(--ink);white-space:nowrap}
.pill.lv{background:#ede9fe;border-color:#ddd6fe;color:#5b21b6}.pill.hot{background:#fff1f2;border-color:#fecdd3;color:#be123c}.pill.new{background:#dcfce7;border-color:#bbf7d0;color:#15803d}.pill.score{background:#fef9c3;border-color:#fde68a}
main{padding:22px 0 50px}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:12px 20px;font-family:inherit;font-weight:800;font-size:1rem;cursor:pointer;text-decoration:none;transition:transform .1s}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;box-shadow:0 6px 0 #4c1d95}
.btn-primary:active{box-shadow:0 2px 0 #4c1d95;transform:translateY(4px)}
.btn-ghost{background:#fff;color:var(--ink);border:2px solid var(--line)}
.btn-sm{padding:7px 12px;font-size:.88rem;box-shadow:none}
.btn.big{font-size:1.15rem;padding:15px 26px}
.btn:disabled{opacity:.6}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.row.center,.center{justify-content:center;text-align:center}
.muted{color:var(--muted)}.small{font-size:.86rem}
label{display:block;font-weight:800;color:var(--ink);margin-bottom:6px}
input,select{width:100%;border:2px solid var(--line);border-radius:14px;padding:12px 14px;font-size:1.05rem;font-family:inherit;color:var(--ink);background:#fff}
input:focus,select:focus{outline:3px solid #c4b5fd;border-color:#8b5cf6}
.onb{max-width:560px;margin:10px auto;text-align:left}.onb h1{text-align:center}.onb>p{text-align:center}
.big-emoji{font-size:4rem;text-align:center}
.avs{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.av{font-size:1.8rem;border:2px solid var(--line);background:#fff;border-radius:14px;padding:6px;cursor:pointer}
.av.on{border-color:#8b5cf6;background:#ede9fe;transform:scale(1.06)}
/* home */
.arena-hero{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center;background:linear-gradient(135deg,#fff,#faf5ff)}
.ah-left{display:flex;gap:14px;align-items:center;flex:1;min-width:260px}
.ah-av{font-size:3.2rem;width:78px;height:78px;border-radius:24px;background:linear-gradient(135deg,#ede9fe,#fce7f3);display:grid;place-items:center}
.bar{height:12px;background:#ede9fe;border-radius:999px;overflow:hidden;margin:6px 0;min-width:160px}.bar i{display:block;height:100%;background:linear-gradient(90deg,#8b5cf6,#ec4899);border-radius:999px;transition:width .4s}
.ah-right{display:flex;gap:12px;align-items:center}
.goal{position:relative;width:74px;height:74px}.goal svg{width:74px;height:74px}.goal b{position:absolute;inset:0;display:grid;place-items:center;font-size:.85rem;color:var(--ink)}
.daily{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-top:16px;background:linear-gradient(135deg,#1e1b4b,#4c1d95);color:#e9d5ff;border:0}
.daily h3{color:#fff;margin:6px 0 4px}
.sec{margin:26px 0 12px}
.worlds{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
@media(max-width:900px){.worlds{grid-template-columns:repeat(2,minmax(0,1fr))}}
.world{display:flex;flex-direction:column;gap:6px;padding:18px;border-radius:22px;background:var(--b);border:2px solid transparent;text-decoration:none;color:inherit;transition:.15s;min-height:190px}
.world:hover{transform:translateY(-4px) rotate(-.5deg);border-color:var(--c);box-shadow:var(--shadow)}
.world b{font-family:"Baloo 2",sans-serif;font-size:1.2rem;color:var(--ink);line-height:1.15}
.w-ic{width:54px;height:54px;border-radius:16px;background:#fff;display:grid;place-items:center;font-size:1.8rem;box-shadow:0 4px 10px rgba(0,0,0,.06);font-weight:800;color:var(--c)}
.w-ic.big{width:72px;height:72px;font-size:2.4rem}.w-ic.sm{width:36px;height:36px;font-size:1.2rem;border-radius:11px;box-shadow:none}
.w-foot{margin-top:auto;display:flex;gap:6px;flex-wrap:wrap}
.w-head{display:flex;gap:16px;align-items:center;background:var(--b);border-radius:24px;padding:20px;margin-bottom:18px}
.back{display:inline-block;margin-bottom:12px;font-weight:800;text-decoration:none;color:var(--muted)}
.modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media(max-width:760px){.modes{grid-template-columns:1fr}}
.mode{display:flex;flex-direction:column;gap:4px;text-align:left;background:#fff;border:2px solid var(--line);border-radius:20px;padding:18px;cursor:pointer;font-family:inherit;transition:.15s}
.mode:hover{border-color:#8b5cf6;transform:translateY(-2px)}
.mode span{font-size:2rem}.mode b{font-size:1.1rem;color:var(--ink)}.mode small{color:var(--muted)}
.hero-mode{background:linear-gradient(135deg,#7c3aed,#db2777);border:0;color:#fff}.hero-mode b,.hero-mode small{color:#fff}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chips button{border:2px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font-weight:800;font-family:inherit;font-size:.92rem;cursor:pointer;color:var(--ink)}
.chips button:hover{border-color:#8b5cf6}.chips .lvl{background:#ede9fe;color:#5b21b6;border-radius:999px;padding:0 6px;font-size:.75rem;margin-left:4px}
.tricks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}@media(max-width:700px){.tricks{grid-template-columns:1fr}}
.letters{display:flex;flex-wrap:wrap;gap:8px}.letters button{font-size:1.6rem;width:56px;height:56px;border-radius:14px;border:2px solid var(--line);background:#fff;cursor:pointer;font-family:inherit}
/* game */
.g-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}.g-top .back{margin:0;font-size:1.3rem}
.g-prog{flex:1;display:flex;align-items:center;gap:10px}.g-prog .bar{flex:1}
.timer{font-family:"Baloo 2",sans-serif;font-size:1.6rem;font-weight:800;color:#be123c}
.lives{font-size:1.3rem;letter-spacing:2px}
.qcard{max-width:680px;margin:0 auto;text-align:center;padding:26px 20px}
.q{font-family:"Baloo 2",sans-serif;font-size:clamp(1.6rem,6vw,2.4rem);font-weight:800;color:var(--ink);margin-bottom:18px;line-height:1.2}
.q .emo{font-size:2.2rem;letter-spacing:6px;margin-top:10px;line-height:1.5}
.q .big{font-size:1.3em;margin-top:8px;color:#5b21b6}
.hi-word{font-size:1.4em;color:#b91c1c}
.speak-btn{display:block;margin:12px auto 0;border:0;background:#ede9fe;color:#5b21b6;border-radius:14px;padding:10px 18px;font-weight:800;font-family:inherit;font-size:1rem;cursor:pointer}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.opt{border:3px solid var(--line);background:#fff;border-radius:18px;padding:18px 10px;font-family:"Baloo 2",inherit;font-size:1.35rem;font-weight:800;color:var(--ink);cursor:pointer;transition:.1s;min-height:72px}
.opt:hover:not(:disabled){border-color:#a78bfa;background:#faf5ff}
.opt.right{background:#dcfce7;border-color:#22c55e;color:#14532d;animation:pop .3s}.opt.wrong{background:#fee2e2;border-color:#ef4444;animation:shake .3s}
@keyframes pop{50%{transform:scale(1.06)}}@keyframes shake{25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.ans-box{display:flex;gap:10px;max-width:360px;margin:0 auto}.ans-box input{font-size:1.6rem;text-align:center;font-weight:800;font-family:"Baloo 2",inherit}
.ans-box .btn{font-size:1.4rem;padding:10px 22px}
.pad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:300px;margin:14px auto 0}
.pad button{border:0;background:#f1f5f9;border-radius:14px;padding:14px;font-size:1.35rem;font-weight:800;font-family:inherit;color:var(--ink);cursor:pointer;box-shadow:0 3px 0 #cbd5e1}
.pad button:active{transform:translateY(3px);box-shadow:none}
@media(hover:hover) and (min-width:900px){.pad{display:none}}
.fb{margin-top:16px;padding:12px 14px;border-radius:14px;font-weight:700;animation:pop .25s}
.fb.good{background:#dcfce7;color:#14532d}.fb.bad{background:#fee2e2;color:#7f1d1d}
.result{max-width:700px;margin:0 auto;text-align:center}
.stars i{font-style:normal;font-size:3.4rem;color:#e5e7eb;margin:0 4px;display:inline-block;animation:pop .5s both}.stars i.on{color:#f5b301}
.stars i:nth-child(2){animation-delay:.15s}.stars i:nth-child(3){animation-delay:.3s}
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:16px 0}@media(max-width:520px){.res-grid{grid-template-columns:repeat(2,1fr)}}
.res-grid div{background:#f5f3ff;border-radius:16px;padding:12px}.res-grid b{display:block;font-family:"Baloo 2",sans-serif;font-size:1.6rem;color:var(--ink)}.res-grid span{font-size:.8rem;color:var(--muted);font-weight:700}
.review{text-align:left;margin:12px 0}.rv{background:#fff7ed;border-radius:12px;padding:10px 12px;margin-bottom:8px}
/* abacus */
.abacus{display:inline-flex;gap:10px;background:linear-gradient(#a16207,#854d0e);padding:14px 18px 8px;border-radius:18px;box-shadow:inset 0 0 0 6px #713f12}
.rod{position:relative;display:flex;flex-direction:column;align-items:center;width:58px;background:linear-gradient(90deg,transparent 47%,#d6d3d1 47%,#d6d3d1 53%,transparent 53%)}
.heaven{height:70px;display:flex;align-items:flex-start}.earth{height:150px;display:flex;flex-direction:column;justify-content:flex-end;gap:2px}
.beam{width:66px;height:8px;background:#fef3c7;border-radius:4px;margin:4px 0}
.bead{width:52px;height:26px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fca5a5,#b91c1c);transition:transform .15s;display:block}
.bead.h{background:radial-gradient(circle at 35% 30%,#93c5fd,#1d4ed8)}
.live .bead{cursor:pointer}
.bead.h.up{transform:translateY(40px)}
.earth .bead{transform:translateY(0)}.earth .bead.up{transform:translateY(-36px)}
.place{color:#fef3c7;font-weight:800;font-size:.75rem;margin-top:6px;background:#713f12;border-radius:6px;padding:0 6px;position:relative}
.flash{font-family:"Baloo 2",sans-serif;font-size:5rem;font-weight:800;color:#5b21b6;min-height:110px;display:grid;place-items:center}
.flash.pop{animation:pop .3s}
.sentence{font-size:1.5rem;font-weight:700;color:var(--ink);margin-bottom:16px;line-height:1.6}.sentence .hit{color:#15803d;background:#dcfce7;border-radius:6px}.sentence .miss{color:#b91c1c;background:#fee2e2;border-radius:6px}
.spell{letter-spacing:3px}
/* stats */
.kpis{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin:14px 0}@media(max-width:800px){.kpis{grid-template-columns:repeat(3,1fr)}}
.kpis div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;text-align:center}.kpis b{display:block;font-family:"Baloo 2",sans-serif;font-size:1.5rem;color:var(--ink)}.kpis span{font-size:.78rem;color:var(--muted);font-weight:700}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}@media(max-width:760px){.grid2{grid-template-columns:1fr}}
.ws-row{display:grid;grid-template-columns:36px 1fr;gap:4px 10px;align-items:center;margin-bottom:12px}.ws-row b{font-size:.95rem;color:var(--ink)}.ws-row .mbar,.ws-row .small{grid-column:2}
.mbar{height:10px;background:#f1f5f9;border-radius:999px;overflow:hidden}.mbar i{display:block;height:100%;border-radius:999px}
.wk{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 0;border-bottom:1px dashed var(--line)}
.badges{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}@media(max-width:700px){.badges{grid-template-columns:repeat(2,1fr)}}
.badge{background:#fff;border:2px dashed var(--line);border-radius:20px;padding:16px;text-align:center;opacity:.55;filter:grayscale(1)}.badge.got{opacity:1;filter:none;border-style:solid;border-color:#fde68a;background:#fffbeb}
.badge span{font-size:2.4rem;display:block}.badge b{display:block;color:var(--ink)}.badge small{color:var(--muted)}
/* static pages */
.hero{padding:34px 0 10px}.hero p.lead{font-size:1.1rem;max-width:680px}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}@media(max-width:800px){.feature-grid{grid-template-columns:1fr}}
.tbl{width:100%;border-collapse:collapse;font-size:1.15rem}.tbl td{padding:8px 12px;border-bottom:1px solid var(--line)}.tbl tr:nth-child(odd){background:#faf5ff}
details{border:1px solid var(--line);background:#fff;border-radius:14px;padding:0 16px;margin-bottom:10px}summary{cursor:pointer;font-weight:800;color:var(--ink);padding:14px 0}details p{margin:0 0 14px}
.ad-slot{margin:22px 0;text-align:center}.ad-slot:empty{display:none}.ad-lbl{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(140px);background:#1e1b4b;color:#fff;padding:12px 18px;border-radius:14px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.25);transition:.3s;z-index:200;max-width:92vw;text-align:center}.toast.show{transform:translateX(-50%) translateY(0)}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:300}
footer{background:#1e1b4b;color:#c4b5fd;padding:28px 0;font-size:.88rem;margin-top:40px}footer a{color:#e9d5ff}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}@media(max-width:700px){footer .cols{grid-template-columns:1fr 1fr}}
@media print{.top,footer,.no-print{display:none}body{background:#fff}}
/* ===== Learn first ===== */
.steps3{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 16px}.steps3>div{flex:1;min-width:150px;background:#fff;border:2px dashed #ddd6fe;border-radius:16px;padding:10px 12px;font-weight:800;color:var(--ink);font-size:.92rem}
.steps3 b{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--pri);color:#fff;font-size:.8rem;margin-right:6px}
.path{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.path-card{display:flex;align-items:center;gap:12px;background:#fff;border:2px solid var(--line);border-radius:18px;padding:12px 14px;text-decoration:none;color:var(--text);transition:.15s}
.path-card:hover{border-color:var(--pri2);transform:translateY(-2px)}.path-card>div{flex:1;min-width:0}.path-card b{color:var(--ink)}.path-card.done{border-color:#fcd34d;background:linear-gradient(135deg,#fffbeb,#fff)}
.ring{--p:0;flex:0 0 46px;height:46px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--pri2) calc(var(--p)*1%),#ede9fe 0)}.ring b{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:#fff;font-size:.95rem}
.pill.pro{background:#fef3c7;border-color:#fcd34d;color:#92400e}
.grand{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:18px;background:linear-gradient(135deg,#1e1b4b,#4c1d95);color:#e9e5ff;border:0}.grand h3{color:#fff;margin:6px 0 2px}.grand .muted{color:#c4b5fd!important}.grand.locked{opacity:.92}
.grand .bar{background:rgba(255,255,255,.2)}.grand>div:first-child{flex:1;min-width:240px}.lock{font-size:2rem}
.lesson h2,.try h2{margin-bottom:10px}.ls-step{background:#f5f3ff;border-radius:16px;padding:16px 18px;min-height:150px;animation:pop .25s}.ls-step.hide{display:none}.ls-n{font-size:.75rem;font-weight:800;color:var(--pri);letter-spacing:.08em}
.ls-step .emo{font-size:2rem;margin:6px 0}.lesson .row{margin-top:12px;justify-content:space-between}
pre.col{font:700 1.4rem/1.3 ui-monospace,Consolas,monospace;background:#fff;border-radius:10px;padding:8px 14px;display:inline-block;margin:8px 0}
.try{margin-top:14px}.try-q{border-top:1px dashed var(--line);padding:12px 0}.try-q:first-of-type{border-top:0}.small-q{font-size:1.25rem}.try-a{margin-top:6px}
.stages{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 12px}.stg{flex:1;min-width:84px;text-align:center;border:2px solid var(--line);border-radius:14px;padding:8px 4px;background:#fff}.stg b{display:block;font-size:1.2rem;color:var(--muted)}.stg span{font-size:.75rem;font-weight:800;color:var(--muted)}
.stg.ok{background:#dcfce7;border-color:#86efac}.stg.ok b,.stg.ok span{color:#15803d}.stg.now{border-color:var(--pri2);background:#f5f3ff}.stg.now b,.stg.now span{color:var(--pri)}
.final-lock{margin-top:12px;padding:10px 14px;border-radius:12px;background:#f1f5f9;color:var(--muted);font-weight:800;text-align:center}.final-lock.open{background:#fef3c7;color:#92400e}
.good-note{background:#dcfce7;border-radius:12px;padding:10px 14px;color:#166534;font-weight:700}
.stage-up{background:#fef3c7;border:2px solid #fcd34d;border-radius:14px;padding:12px;margin:12px 0;font-weight:800;color:#92400e}.stage-try{background:#eff6ff;border:2px solid #bfdbfe;border-radius:14px;padding:12px;margin:12px 0;font-weight:700;color:#1e3a8a}
.hint-t{margin-top:8px;background:#fefce8;border:1px solid #fde68a;border-radius:12px;padding:10px 12px;font-weight:700;color:#713f12}.fb .explain{margin-top:6px;font-weight:600;opacity:.9}
.mode.locked{opacity:.55;cursor:not-allowed;filter:grayscale(.4)}
.how{max-width:520px;margin:30px auto;text-align:center}.how-steps{text-align:left;font-size:1.1rem;font-weight:700;color:var(--ink);padding-left:24px;margin:16px 0 20px}.how-steps li{margin-bottom:10px}
.opt.dim{opacity:.5}.study-word{font:800 clamp(2.2rem,8vw,3.4rem)/1.1 "Baloo 2",sans-serif;color:var(--ink);text-align:center;margin:8px 0}
.spell-letters{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin:8px 0}.spell-letters span{width:38px;height:44px;display:grid;place-items:center;border-radius:10px;background:#ede9fe;font-weight:800;font-size:1.3rem;color:var(--pri)}