:root{--pri:#ff6fa3;--blue:#4aa8ff;--green:#3ccf7a;--yellow:#ffc93c;--purple:#9b6bff;--ink:#2d2a4a;--card:#fff}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%}
body{font-family:'Baloo 2',system-ui,sans-serif;color:var(--ink);background:linear-gradient(180deg,#8fd3ff 0%,#c9ecff 55%,#e9fbd9 100%);min-height:100vh;overflow-x:hidden}
button{font-family:inherit;cursor:pointer;border:0}
.sky{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.cloud{position:absolute;background:#fff;border-radius:100px;opacity:.85;animation:drift linear infinite}
.cloud::before,.cloud::after{content:'';position:absolute;background:#fff;border-radius:50%}
.cloud::before{width:50%;height:160%;left:15%;top:-70%}.cloud::after{width:40%;height:130%;right:12%;top:-50%}
@keyframes drift{from{transform:translateX(-30vw)}to{transform:translateX(130vw)}}
.balloon{position:absolute;bottom:-120px;font-size:42px;animation:rise linear infinite}
@keyframes rise{to{transform:translateY(-130vh) rotate(10deg)}}
.hills{position:fixed;bottom:0;left:0;right:0;height:110px;z-index:0;pointer-events:none}
main{position:relative;z-index:1;max-width:960px;margin:0 auto;padding:12px 16px 120px}
.screen{display:none;animation:pop .35s ease}.screen.on{display:block}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(10px)}to{opacity:1;transform:none}}
.card{background:var(--card);border-radius:24px;padding:20px;box-shadow:0 8px 0 rgba(0,0,0,.08),0 12px 30px rgba(40,60,120,.12)}
h1,h2,h3{margin:.2em 0;line-height:1.2}
.title{font-size:clamp(28px,6vw,46px);font-weight:800;text-align:center;color:#fff;text-shadow:0 4px 0 #ff4d8d,0 8px 18px rgba(0,0,0,.2);letter-spacing:.5px}
.btn{background:var(--pri);color:#fff;font-weight:800;font-size:20px;padding:12px 24px;border-radius:18px;box-shadow:0 6px 0 #d44b80;transition:transform .1s}
.btn:active{transform:translateY(4px);box-shadow:0 2px 0 #d44b80}
.btn.blue{background:var(--blue);box-shadow:0 6px 0 #2a7fd0}.btn.green{background:var(--green);box-shadow:0 6px 0 #22a058}
.btn.gray{background:#b9b6d3;box-shadow:0 6px 0 #8c89a8}.btn.yellow{background:var(--yellow);color:#5a3d00;box-shadow:0 6px 0 #d49b10}
.btn.sm{font-size:16px;padding:8px 14px;border-radius:14px}
input,textarea{font-family:inherit;font-size:20px;padding:10px 14px;border-radius:14px;border:3px solid #d9d5f2;width:100%;outline:none;color:var(--ink)}
input:focus,textarea:focus{border-color:var(--blue)}
label{font-weight:700;display:block;margin:10px 0 4px}
/* top bar */
.topbar{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.chip{background:#fff;border-radius:999px;padding:6px 14px;font-weight:800;box-shadow:0 4px 0 rgba(0,0,0,.08);display:flex;align-items:center;gap:6px}
.avatar{font-size:34px;line-height:1}
.grow{flex:1}
/* mascot */
.mascot{width:120px;height:130px;animation:bob 2.4s ease-in-out infinite;transform-origin:bottom center}
.mascot.jump{animation:jump .6s ease}.mascot.sad{animation:shake .5s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes jump{0%{transform:translateY(0) scale(1)}30%{transform:translateY(-40px) scale(1.1,.9)}60%{transform:translateY(0) scale(.9,1.1)}100%{transform:none}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-10px) rotate(-5deg)}75%{transform:translateX(10px) rotate(5deg)}}
.eye{animation:blink 4s infinite;transform-origin:center;transform-box:fill-box}
@keyframes blink{0%,92%,100%{transform:scaleY(1)}95%{transform:scaleY(.1)}}
.ear{transform-origin:bottom center;transform-box:fill-box;animation:wiggle 3s ease-in-out infinite}
@keyframes wiggle{0%,100%{transform:rotate(0)}50%{transform:rotate(-8deg)}}
.bubble{background:#fff;border-radius:20px;padding:10px 16px;font-weight:700;font-size:18px;position:relative;box-shadow:0 4px 0 rgba(0,0,0,.08);max-width:420px}
.bubble::after{content:'';position:absolute;left:-12px;bottom:18px;border:8px solid transparent;border-right-color:#fff;border-left:0}
.hero{display:flex;align-items:flex-end;gap:12px;margin:6px 0 16px}
/* countdown */
.cd{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.cd .card{padding:12px 14px;text-align:center}
.cd b{font-size:34px;color:var(--pri);display:block;line-height:1}
/* islands */
.sec-title{font-size:26px;font-weight:800;color:#fff;text-shadow:0 3px 0 rgba(0,0,0,.18);margin:18px 4px 10px;display:flex;align-items:center;gap:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.tile{background:#fff;border-radius:22px;padding:14px 10px 10px;text-align:center;box-shadow:0 6px 0 rgba(0,0,0,.1);transition:transform .15s;position:relative;overflow:hidden}
.tile:hover{transform:translateY(-4px) rotate(-1deg)}.tile:active{transform:scale(.96)}
.tile .ic{font-size:44px;display:block;animation:bob 3s ease-in-out infinite}
.tile .nm{font-weight:800;font-size:16px;line-height:1.15;min-height:38px;display:flex;align-items:center;justify-content:center}
.tile .st{font-size:18px;letter-spacing:2px;color:#ddd}.tile .st .on{color:var(--yellow);text-shadow:0 2px 0 #d49b10}
.tile::before{content:'';position:absolute;inset:0 0 auto 0;height:8px;background:var(--c,#ff6fa3)}
/* quiz */
.qtop{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.bar{flex:1;height:18px;background:#fff;border-radius:99px;overflow:hidden;box-shadow:inset 0 2px 4px rgba(0,0,0,.1)}
.bar i{display:block;height:100%;background:linear-gradient(90deg,#ffd23c,#ff6fa3);border-radius:99px;transition:width .4s}
.timer{font-weight:800;font-size:20px;background:#fff;border-radius:12px;padding:4px 12px}
.timer.warn{color:#e53935;animation:shake .6s infinite}
.qtext{font-size:clamp(20px,3.6vw,26px);font-weight:700;line-height:1.4;margin:6px 0 16px}
.qtext .big{font-size:1.3em;color:var(--purple);white-space:nowrap}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.opts{grid-template-columns:1fr}}
.opt{background:#f4f2ff;border:3px solid #e2ddff;border-radius:18px;padding:14px;font-size:20px;font-weight:700;text-align:left;display:flex;gap:10px;align-items:center;color:var(--ink);transition:.15s}
.opt:hover{border-color:var(--blue);background:#eaf5ff}
.opt .k{background:#fff;border-radius:10px;min-width:34px;height:34px;display:grid;place-items:center;font-weight:800;color:var(--purple)}
.opt.right{background:#d8ffe6;border-color:var(--green);animation:jump .5s}.opt.wrong{background:#ffe0e6;border-color:#ff5a7a;animation:shake .4s}
.opt[disabled]{cursor:default}
.passage{background:#fffbe8;border:3px dashed #ffd36b;border-radius:18px;padding:14px 16px;margin-bottom:14px;font-size:18px;line-height:1.55;max-height:260px;overflow:auto}
.passage p{margin:.4em 0;text-indent:1.2em}
details summary{cursor:pointer;font-weight:800;color:#c07a00}
.fb{margin-top:14px;border-radius:18px;padding:14px 16px;font-size:19px;font-weight:700;display:none}
.fb.ok{display:block;background:#d8ffe6;color:#16683a}.fb.no{display:block;background:#ffe9ee;color:#a3203f}
.order-ans{min-height:58px;border:3px dashed #c9c3f3;border-radius:16px;padding:8px;display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;background:#faf9ff}
.pill{background:#fff;border:3px solid #e2ddff;border-radius:14px;padding:8px 14px;font-size:20px;font-weight:800;color:var(--ink)}
.pill.used{opacity:.25;pointer-events:none}
table.data{border-collapse:collapse;margin:8px 0;font-size:19px}
table.data td,table.data th{border:2px solid #b9b2ea;padding:6px 14px;text-align:center}
table.data th{background:#efeaff}
/* result */
.stars{font-size:64px;letter-spacing:6px;text-align:center}
.stars span{display:inline-block;color:#e4e1f3;transform:scale(0)}
.stars span.on{color:var(--yellow);text-shadow:0 4px 0 #d49b10;animation:starpop .5s forwards}
.stars span.off{animation:starpop .5s forwards}
@keyframes starpop{60%{transform:scale(1.4) rotate(20deg)}100%{transform:scale(1)}}
.review{margin-top:14px;font-size:17px}
.review .it{background:#fff5f7;border-radius:14px;padding:10px 12px;margin:8px 0;border-left:6px solid #ff5a7a}
.hist-row{display:flex;gap:10px;align-items:center;padding:10px 4px;border-bottom:2px dashed #eee}
.hist-row .s{color:var(--yellow);font-size:18px}
.toast{position:fixed;left:50%;top:14px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 20px;border-radius:16px;font-weight:700;z-index:99;display:none}
canvas#fx{position:fixed;inset:0;pointer-events:none;z-index:50}
.coinfly{position:fixed;font-size:30px;z-index:60;pointer-events:none;animation:coinup 1s ease-out forwards}
@keyframes coinup{to{transform:translateY(-120px) scale(1.4);opacity:0}}
.avs{display:flex;flex-wrap:wrap;gap:8px}.avs button{font-size:38px;background:#f4f2ff;border-radius:16px;padding:4px 8px;border:3px solid transparent}
.avs button.sel{border-color:var(--pri);background:#ffe6f0;transform:scale(1.1)}
.readbox{font-size:24px;line-height:1.7;background:#fffbe8;border-radius:18px;padding:16px 18px;border:3px dashed #ffd36b}
.small{font-size:15px;opacity:.75}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.lvl{background:linear-gradient(90deg,#9b6bff,#ff6fa3);color:#fff}
.angle-svg{display:block;margin:0 auto 10px;max-width:260px}
.readbox .w{padding:1px 3px;border-radius:6px;transition:background .15s,color .15s}
.w.ok{color:#16683a;background:#d8ffe6}.w.tone{color:#8a5a00;background:#fff0c2}.w.sub{color:#a3203f;background:#ffe0e6}.w.del{color:#888;background:#eee;text-decoration:line-through}
.w.cur{background:#ffe08a;animation:blinkc 1s infinite}@keyframes blinkc{50%{background:#fff3c4}}
.pm{font-size:.7em;margin:0 2px}.pm.good{color:#16a34a}.pm.wrong{color:#e53935}.pm.short,.pm.long{color:#c07a00}
.meter{display:none;align-items:flex-end;gap:4px;height:46px;margin:10px 0}.meter i{flex:1;background:linear-gradient(#ff6fa3,#9b6bff);border-radius:4px;height:6%;transition:height .08s}
.rbar{display:flex;align-items:center;gap:8px;margin:6px 0;font-weight:700}.rbar span{width:140px}.rbar .bar{flex:1}.rbar b{width:34px;text-align:right}.rbar .na{opacity:.6;font-weight:400}
@media(max-width:560px){.rbar span{width:104px;font-size:14px}}
.roadmap{position:relative;margin:0 auto;border-radius:28px;background:rgba(255,255,255,.35);overflow:hidden}
.roadmap .scene{position:absolute;left:12px;right:12px;padding:6px 14px;border-radius:999px;font-weight:800;font-size:15px;text-align:center;box-shadow:0 3px 0 rgba(0,0,0,.08);z-index:1}
.roadmap .deco{position:absolute;font-size:30px;opacity:.9;pointer-events:none}
.node{position:absolute;width:68px;height:68px;border-radius:50%;background:#fff;border:6px solid #cfc9ee;font-size:30px;display:grid;place-items:center;box-shadow:0 6px 0 rgba(0,0,0,.12);z-index:2;padding:0}
.node.done{border-color:var(--yellow);background:#fffbe0}.node.cur{border-color:var(--pri);animation:pulse 1.2s infinite}.node.lock{background:#e8e6f4;filter:grayscale(.8)}
.node.boss{width:76px;height:76px;margin:-4px;border-color:#9b6bff;background:#f3ebff}.node.boss.done{border-color:var(--yellow)}
@keyframes pulse{50%{box-shadow:0 0 0 12px rgba(255,111,163,.25),0 6px 0 rgba(0,0,0,.12);transform:scale(1.06)}}
.nlab{position:absolute;font-size:14px;line-height:1.2;max-width:34%;z-index:2}.nlab b{display:block}
.nst{color:#ddd;font-size:15px}.nst .on{color:var(--yellow)}
.bunpos{position:absolute;width:56px;height:60px;z-index:3;pointer-events:none}.bunpos .mz{width:56px;height:60px}.bunpos .mascot{width:56px;height:60px}
.modal{position:fixed;inset:0;background:rgba(40,30,80,.5);z-index:70;align-items:center;justify-content:center}
.lvbtn{display:flex;width:100%;justify-content:space-between;align-items:center;margin:8px 0}.lvbtn .st{letter-spacing:2px;color:#fff5}.lvbtn .st .on{color:var(--yellow)}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}.badge{background:#f1eefc;border-radius:16px;padding:10px;text-align:center;font-weight:700;font-size:14px;opacity:.55}.badge span{font-size:34px;display:block}.badge.got{opacity:1;background:#fff6cf}
.cal{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;max-width:420px}.cal b{text-align:center;font-size:13px}.cal i{aspect-ratio:1;border-radius:10px;display:grid;place-items:center;font-style:normal;font-size:13px;font-weight:700;background:#f1eefc;color:#6a6690}
.cal i.l1{background:#ffd9e6;color:#7a2a4c}.cal i.l2{background:#ff9fc2;color:#5a1236}.cal i.l3{background:#ff6fa3;color:#fff}.cal i.today{outline:3px solid var(--blue)}
.small{opacity:.85}.btn.gray{color:#2d2a4a}.btn.yellow{color:#4a3200}
/* tương phản (a11y) */
.btn{background:#c93570;box-shadow:0 6px 0 #962553}.btn:active{box-shadow:0 2px 0 #962553}
.btn.blue{background:#1b6fc2;box-shadow:0 6px 0 #124f8f}.btn.green{background:#17804a;box-shadow:0 6px 0 #0f5c34}
.title,.sec-title,.qtop h2{background:rgba(45,42,74,.62);border-radius:18px;padding:4px 16px;display:block;text-shadow:none}
.qtop h2{display:block}.title{display:table;margin:0 auto 8px}
#roadInfo{background:rgba(45,42,74,.62);border-radius:12px;padding:4px 12px;display:inline-block;text-shadow:none!important}
.tile .st,.nst{color:#8a86a8}.tile .st .on,.nst .on{color:#e0a100}
.podium{display:flex;align-items:flex-end;justify-content:center;gap:8px;margin:10px 0 6px}
.pod{flex:1;max-width:140px;text-align:center;position:relative}.pod .pn{display:block;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pb{margin-top:4px;border-radius:14px 14px 0 0;background:linear-gradient(#ffd23c,#ff9f43);display:flex;flex-direction:column;justify-content:center;align-items:center;font-weight:800;color:#5a3d00}
.pod2 .pb{background:linear-gradient(#cfd6e6,#9aa6c0)}.pod3 .pb{background:linear-gradient(#e6b27a,#b9773c);color:#fff}
.pod1 .pb{animation:shine 2s infinite}@keyframes shine{50%{box-shadow:0 0 18px 4px rgba(255,210,60,.8)}}
.medal{font-size:30px}.crown{font-size:28px;animation:bob 2s ease-in-out infinite}
.lbav{position:relative;display:inline-block;font-size:38px;line-height:1.1;animation:bob 3s ease-in-out infinite}.lbav i{position:absolute;font-style:normal;font-size:.55em;left:50%;transform:translateX(-50%)}
.lbhat{top:-.35em}.lbgl{top:.25em}
.lbrow{display:flex;align-items:center;gap:10px;padding:8px 4px;border-bottom:2px dashed #eee}.lbrow .lbav{font-size:30px}.lbr{width:34px;color:var(--purple)}
/* ---------- PLAN3: nhân vật, cửa hàng, huy hiệu, bảng vàng, hồ sơ ---------- */
.mascot.mini{width:84px;height:91px}.lbsvg{width:46px;height:50px;animation:none}.pod .lbsvg{width:60px;height:65px}
.lbav{font-size:0}.lbrow.click,.pod[role=button]{cursor:pointer}.lbrow.click:hover{background:#faf8ff}.lbt{color:#7b4fd6;opacity:1}
.lbtabs{justify-content:center;margin-bottom:6px}
.charpick{background:#f4f2ff;border-radius:18px;padding:6px 6px 8px;border:3px solid transparent;display:flex;flex-direction:column;align-items:center;font-weight:800;font-size:14px;color:var(--ink)}
.charpick.sel{border-color:var(--pri);background:#ffe6f0}.charpick .mascot{width:70px;height:76px}
.avs button.charpick{font-size:13px;padding:4px 6px 6px;width:88px}.avs button.charpick.sel{transform:none}
.tile .tag{position:absolute;top:12px;right:8px;font-size:11px;font-weight:800;background:#efeaff;color:#5b3fa8;border-radius:99px;padding:1px 8px}
.tile .tag.on{background:#d8ffe6;color:#17804a}.tile .tag.r{background:#fff0c2;color:#8a5a00}
.shopit.r2{box-shadow:0 6px 0 rgba(27,111,194,.25)}.shopit.r3{box-shadow:0 0 0 3px #ffd23c,0 6px 0 rgba(212,155,16,.4)}
.shopit[disabled]{opacity:.5}.chartile .cv{display:flex;justify-content:center}
.chips{display:flex;gap:8px;overflow-x:auto;padding:4px 0 10px;margin:8px 0;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chips .btn{flex:none}
.frzrow{display:flex;align-items:center;gap:10px;background:#eaf5ff;border-radius:16px;padding:10px 12px;margin:8px 0}
.goalcard{background:#fff7d6;margin-bottom:10px;padding:12px 14px}.goalcard .bar,.goalbox+div+.bar{height:12px}
.preview{display:flex;justify-content:center;border-radius:20px;padding:10px;margin:6px 0}.preview .mascot{width:150px;height:162px}
.badge{border:0;font-family:inherit;color:var(--ink)}.badge.got{cursor:pointer}.badge.show{outline:3px solid var(--yellow);background:#fff0c2}
select{font-family:inherit;font-size:16px;padding:6px 10px;border-radius:12px;border:3px solid #d9d5f2}
.goalbox{display:flex;align-items:center;gap:12px}.ring{width:58px;height:58px;flex:none}
.pfcard{width:min(460px,94vw);max-height:90vh;overflow:auto;position:relative}.pfclose{position:absolute;top:10px;right:10px;z-index:2}
.pfhead{display:flex;justify-content:center;border-radius:20px;padding:12px}.pfhead .mascot{width:130px;height:140px}
.resume{background:#fff7d6;margin-bottom:12px;border:3px solid #ffd23c}
.rphead{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:space-between;background:#f6f1ff;border-radius:16px;padding:10px 12px;margin-bottom:12px}
.enpic{font-size:72px;text-align:center;line-height:1.1;margin:6px 0}
.opt span:last-child{font-size:inherit}
/* ---------- bố cục: tab dưới (mobile/tablet) · cột trái + bảng phụ (desktop) ---------- */
.tabbar{display:none}.homeside{display:none}
body.navon .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;background:rgba(255,255,255,.96);box-shadow:0 -4px 18px rgba(40,60,120,.15);padding:6px 6px calc(6px + env(safe-area-inset-bottom));justify-content:space-around;backdrop-filter:blur(6px)}
.tabbar button{background:none;flex:1;display:flex;flex-direction:column;align-items:center;font-weight:800;font-size:12px;color:#6a6690;border-radius:14px;padding:4px 2px;min-height:52px;justify-content:center}
.tabbar button span{font-size:24px;line-height:1.1}.tabbar button.on{color:var(--pri);background:#ffe6f0}
.tabbar .deskonly{display:none}
body.navon main{padding-bottom:150px}body.navon #musicBtn,body.navon #musicHint{bottom:84px}
@media(min-width:1024px){
 body.navon .tabbar{top:0;bottom:0;right:auto;width:196px;flex-direction:column;justify-content:flex-start;gap:4px;padding:18px 10px;box-shadow:4px 0 18px rgba(40,60,120,.12)}
 body.navon .tabbar::before{content:'🌈 Bun Ôn Bài';font-weight:800;font-size:20px;color:var(--pri);padding:4px 8px 12px}
 .tabbar button{flex:none;flex-direction:row;gap:10px;font-size:16px;justify-content:flex-start;padding:8px 12px;min-height:46px}
 .tabbar button span{font-size:22px}.tabbar .deskonly{display:flex}.tabbar .deskonly.adminOnly[style*="none"]{display:none!important}
 body.navon main{max-width:1180px;margin-left:212px;margin-right:16px;padding-bottom:60px}body.navon #musicBtn{bottom:14px}body.navon #musicHint{bottom:14px}
 .homegrid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;align-items:start}
 .homeside{display:flex;flex-direction:column;gap:14px;position:sticky;top:12px}.mobgoal{display:none}
}
/* màn hẹp: lưới 2 cột, tab con đường cuộn ngang thay vì xuống 3 dòng */
@media(max-width:560px){
 .grid{grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:10px}
 .tile .ic{font-size:36px}.tile .nm{font-size:15px}
 .card{padding:16px}
 #roadTabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px;scrollbar-width:none}#roadTabs::-webkit-scrollbar{display:none}
 #roadTabs .btn{flex:none}
 #s-home .hero .mascot{width:84px;height:91px}#s-home .bubble{font-size:16px}
 .cd .card{padding:8px 10px}.cd b{font-size:28px}.sec-title{font-size:20px}
 .enpic{font-size:60px}
}