/* Layout: login card, then a navy masthead with class tabs, subject cards, chapter list, and a chapter reader (tutorial cards + practice) */
:root{
  --bg:#f5f6fb; --surface:#ffffff; --ink:#1a2147; --muted:#59628a; --line:#dadeee;
  --navy:#1f2f7a; --on-navy:#ffffff; --saffron:#ee8a1c; --on-saffron:#2a1700; --leaf:#2a7d57; --tint:#eceffb; --soft:#fff1de;
  --good:#2a7d57; --bad:#c2432b;
  --display:'Baloo 2','Noto Sans Devanagari',system-ui,sans-serif;
  --body:'Noto Sans Devanagari',system-ui,-apple-system,'Segoe UI',sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0f1430; --surface:#171d44; --ink:#e9ebfa; --muted:#a2a9d0; --line:#2b3366;
  --navy:#0b1033; --on-navy:#ffffff; --saffron:#f4a340; --on-saffron:#2a1700; --leaf:#5fc79b; --tint:#1e2552; --soft:#2c2a3f;
  --good:#3aa37a; --bad:#d9573f; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0f1430; --surface:#171d44; --ink:#e9ebfa; --muted:#a2a9d0; --line:#2b3366;
  --navy:#0b1033; --on-navy:#ffffff; --saffron:#f4a340; --on-saffron:#2a1700; --leaf:#5fc79b; --tint:#1e2552; --soft:#2c2a3f;
  --good:#3aa37a; --bad:#d9573f; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.7;margin:0}
.wrap{max-width:960px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3,h4,h5{font-family:var(--display);line-height:1.25;margin:0;text-wrap:balance}
h2{font-size:1.5rem;margin-bottom:8px}h3{font-size:1.2rem;margin-bottom:6px}h5{font-size:1rem;margin-bottom:2px}
p{margin:0 0 10px}ul,ol{padding-left:22px;margin:0 0 10px}li{margin-bottom:4px}
button{font:inherit;color:inherit}
button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--saffron);outline-offset:2px}
.btn{font-weight:700;border:1px solid var(--line);background:var(--surface);padding:7px 16px;border-radius:6px;cursor:pointer}
.btn.pri{background:var(--saffron);border-color:var(--saffron);color:var(--on-saffron)}
.btn.sm{padding:4px 12px;font-size:.9rem}
.board{font-family:var(--body);font-size:.7rem;font-weight:700;letter-spacing:.08em;background:var(--saffron);color:var(--on-saffron);border-radius:4px;padding:1px 8px;vertical-align:middle;margin-left:6px}
header.top .btn{color:var(--ink)}
.langsw{display:inline-flex;border:1px solid var(--line);border-radius:99px;overflow:hidden}
header.top .langsw{border-color:rgba(255,255,255,.35)}
.langsw button{border:0;background:transparent;padding:2px 12px;cursor:pointer;font-size:.88rem;color:inherit}
.langsw button[aria-pressed="true"]{background:var(--saffron);color:var(--on-saffron);font-weight:700}
/* login */
.login{min-height:100vh;display:grid;place-items:center;padding-block:32px}
.lcard{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);border-top:6px solid var(--saffron);border-radius:8px;padding:24px}
.lcard h1{font-size:2rem;color:var(--navy)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .lcard h1{color:var(--saffron)}}
:root[data-theme="dark"] .lcard h1{color:var(--saffron)}
.lcard label{display:block;font-weight:500;margin-top:12px}
.lcard input,.lcard select{width:100%;font:inherit;padding:9px 12px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink)}
.hint{font-size:.88rem;color:var(--muted);margin-top:10px}
.err{color:var(--bad);font-size:.92rem;min-height:1.4em;margin:8px 0 0}
/* masthead */
header.top{background:var(--navy);color:var(--on-navy);border-bottom:5px solid var(--saffron)}
header.top .wrap{padding-block:14px;display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;justify-content:space-between}
header.top h1{font-size:1.5rem;color:var(--on-navy)}
.chip{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:3px 12px;border-radius:99px;font-size:.9rem;font-variant-numeric:tabular-nums}
.chip b{color:var(--saffron)}
.ctabs{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--surface);border-bottom:1px solid var(--line)}
.ctabs .wrap{display:flex;gap:8px;overflow-x:auto;padding-block:10px}
.ctabs button{white-space:nowrap;border:1px solid var(--line);background:var(--bg);border-radius:99px;padding:3px 16px;cursor:pointer;font-weight:500}
.ctabs button[aria-selected="true"]{background:var(--navy);border-color:var(--navy);color:var(--on-navy)}
main.wrap{padding-block:22px 60px}
/* home */
.hello{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin-bottom:20px}
.ring{--p:0;width:84px;height:84px;border-radius:50%;background:conic-gradient(var(--saffron) calc(var(--p)*1%),var(--tint) 0);display:grid;place-items:center}
.ring span{width:64px;height:64px;border-radius:50%;background:var(--surface);display:grid;place-items:center;font-family:var(--display);font-size:1.15rem;font-variant-numeric:tabular-nums}
.search{width:100%;font:inherit;padding:9px 14px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--ink);margin-bottom:16px}
.subs{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,270px),1fr))}
.subj{background:var(--surface);border:1px solid var(--line);border-top:5px solid var(--saffron);border-radius:8px;padding:14px 16px;text-align:left;cursor:pointer;min-width:0;display:flex;flex-direction:column;gap:6px}
.subj strong{font-family:var(--display);font-size:1.25rem}
.subj small{color:var(--muted)}
.subj.soon{border-top-color:var(--line);cursor:default;opacity:.7}
.bar{height:8px;background:var(--tint);border-radius:4px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--leaf)}
.crumb{background:none;border:0;color:var(--navy);cursor:pointer;padding:0;font-weight:700;margin-bottom:10px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .crumb{color:var(--saffron)}}
:root[data-theme="dark"] .crumb{color:var(--saffron)}
.chl{display:grid;gap:10px}
.chrow{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:12px 16px;cursor:pointer;text-align:left;width:100%}
.chrow strong{font-family:var(--display);font-size:1.1rem;display:block}
.chrow small{color:var(--muted)}
.pct{font-weight:700;font-variant-numeric:tabular-nums;color:var(--leaf)}
.bk{margin:22px 0 8px;color:var(--navy)}
.soonrow{opacity:.6;cursor:default}
.tag{font-size:.8rem;border:1px solid var(--line);border-radius:99px;padding:0 10px;color:var(--muted)}
/* chapter */
.recap{background:var(--soft);border-left:5px solid var(--saffron);border-radius:0 8px 8px 0;padding:12px 16px;margin:12px 0 18px}
.chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:6px;margin:0 0 6px}
.chips a{white-space:nowrap;font-size:.84rem;text-decoration:none;border:1px solid var(--line);background:var(--surface);padding:2px 12px;border-radius:99px;color:var(--ink)}
.chips a.done{border-color:var(--leaf);color:var(--leaf)}
.lesson{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px 18px;margin:14px 0;scroll-margin-top:64px}
.lesson>h3,.bk{color:var(--navy)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .lesson>h3,:root:not([data-theme="light"]) .bk{color:var(--saffron)}}
:root[data-theme="dark"] .lesson>h3,:root[data-theme="dark"] .bk{color:var(--saffron)}
.src{font-size:.88rem;color:var(--muted);margin:-4px 0 6px}
.learn{margin-top:12px;padding-top:10px;border-top:1px dashed var(--line)}
.learn button{font-weight:700;border:2px solid var(--leaf);background:transparent;color:var(--leaf);padding:5px 16px;border-radius:6px;cursor:pointer}
.learn button[aria-pressed="true"]{background:var(--leaf);color:#fff}
.grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));margin:10px 0}
.box{background:var(--tint);border-radius:8px;padding:10px 14px;min-width:0}
.box p{margin:0}
.callout{background:var(--soft);border-radius:8px;padding:10px 14px;margin:10px 0}
.callout.tip{border-left:4px solid var(--leaf)}
table{border-collapse:collapse;width:100%;margin:8px 0 12px;display:block;overflow-x:auto}
th,td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.96rem}
th{background:var(--saffron);color:var(--on-saffron);font-family:var(--display)}
.prac{margin-top:26px}
.q{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin:12px 0}
.q .t{font-weight:700;margin-bottom:8px}
.opts{display:grid;gap:8px}
.opts button{text-align:left;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:8px 12px;cursor:pointer;min-width:0}
.opts button:hover:not(:disabled){border-color:var(--saffron)}
.opts button.right{background:var(--good);border-color:var(--good);color:#fff}
.opts button.wrong{background:var(--bad);border-color:var(--bad);color:#fff}
.fb{font-size:.94rem;color:var(--muted);margin:10px 0 0}
.ans{background:var(--tint);border-radius:8px;padding:10px 14px;margin-top:10px}
.row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.score{font-family:var(--display);font-size:1.15rem;margin:6px 0 10px}
.empty{background:var(--surface);border:1px dashed var(--line);border-radius:8px;padding:20px;color:var(--muted)}
.foot{margin-top:36px;font-size:.85rem;color:var(--muted)}
@media (max-width:480px){.hello{grid-template-columns:1fr}}

/* icons, tools */
.ico{width:1.35em;height:1.35em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ico.sm{width:1em;height:1em;vertical-align:-.12em;margin-right:4px}
.tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.mut{color:var(--muted);margin:4px 0 14px}
.btn.big{padding:12px 26px;font-size:1.1rem}
/* landing */
.land{background:var(--bg)}
.ltop{background:var(--navy);color:var(--on-navy);border-bottom:5px solid var(--saffron)}
.ltop .wrap{padding-block:12px;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.ltop .btn{color:var(--ink);text-decoration:none;display:inline-block}
.ltop .langsw{border-color:rgba(255,255,255,.35)}
.ltools{display:flex;gap:10px;align-items:center}
.brand{font-family:var(--display);font-size:1.5rem;font-weight:700}
.hero{background:var(--navy);color:var(--on-navy);padding:36px 0 44px}
.herogrid{display:grid;gap:28px;grid-template-columns:1fr}
.hero h1{font-size:clamp(1.8rem,5vw,2.8rem);line-height:1.2;color:var(--on-navy)}
.lead{font-size:1.1rem;opacity:.92;max-width:34em}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px}
.stats div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:12px 14px}
.stats b{display:block;font-family:var(--display);font-size:1.9rem;color:var(--saffron);font-variant-numeric:tabular-nums;line-height:1.1}
.stats span{font-size:.88rem;opacity:.9}
@media (min-width:860px){.herogrid{grid-template-columns:1.2fr 1fr;align-items:center}}
.lsec{padding-block:30px 6px}
.lsec h2{font-size:1.6rem;color:var(--navy)}
:root[data-theme="dark"] .lsec h2{color:var(--saffron)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .lsec h2{color:var(--saffron)}}
.ctiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
.ctile{background:var(--surface);border:1px solid var(--line);border-bottom:4px solid var(--saffron);border-radius:8px;padding:12px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--ink)}
.ctile b{font-family:var(--display);font-size:2rem;line-height:1;color:var(--navy)}
:root[data-theme="dark"] .ctile b{color:var(--saffron)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .ctile b{color:var(--saffron)}}
.ctile small{color:var(--muted)}
.ctile:hover{background:var(--tint)}
.fgrid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px}
.feat .ico{width:1.8em;height:1.8em;color:var(--saffron)}
.feat h3{margin:8px 0 4px;font-size:1.15rem}
.feat p{margin:0;color:var(--muted)}
.steps{list-style:none;padding:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.steps li{display:flex;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:12px 14px}
.steps b{width:34px;height:34px;border-radius:50%;background:var(--saffron);color:var(--on-saffron);display:grid;place-items:center;font-family:var(--display);flex:none}
#loginbox{display:flex;justify-content:center;padding-bottom:20px}
/* home actions */
.acts{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));margin-bottom:16px}
.act{display:flex;gap:12px;align-items:center;text-align:left;background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--leaf);border-radius:8px;padding:12px 14px;cursor:pointer;color:var(--ink);min-width:0}
.act .ico{width:1.8em;height:1.8em;color:var(--leaf)}
.act strong{display:block}.act small{color:var(--muted)}
.subic{width:42px;height:42px;border-radius:10px;background:var(--soft);color:var(--saffron);display:grid;place-items:center}
.subhead{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:6px}
.resultbox{text-align:center;background:var(--surface);border:1px solid var(--line);border-top:5px solid var(--saffron);border-radius:8px;padding:20px;margin:14px 0}
.resultbox .big{font-family:var(--display);font-size:3rem;color:var(--navy)}
:root[data-theme="dark"] .resultbox .big{color:var(--saffron)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .resultbox .big{color:var(--saffron)}}
/* painting content */
.paint{border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin:12px 0;background:var(--surface)}
.paint h5{margin:0 0 6px;font-size:1.05rem;color:var(--navy)}
:root[data-theme="dark"] .paint h5{color:var(--saffron)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .paint h5{color:var(--saffron)}}
.meta{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.88rem;color:var(--muted);margin-bottom:8px}
.meta b{color:var(--ink);margin-right:4px}
.cols{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));margin:8px 0}
.cols>div{min-width:0}
.cols h4,.lesson h4{margin:6px 0 4px;font-size:1rem}
.pill{display:inline-block;font-size:.78rem;font-weight:600;border:1px solid var(--line);background:var(--tint);border-radius:99px;padding:0 9px;vertical-align:middle}
.pill.syl{background:var(--soft);border-color:var(--saffron)}
td.n{white-space:nowrap;font-variant-numeric:tabular-nums}
.tablewrap{overflow-x:auto}
.sw{display:inline-block;width:1.1em;height:1.1em;border-radius:3px;border:1px solid var(--line);vertical-align:-.15em;margin-right:4px}
.mix{display:flex;flex-wrap:wrap;gap:6px 14px;margin:6px 0}
.svgbox{overflow-x:auto;margin:8px 0;color:var(--ink)}
.svgbox svg{max-width:100%;height:auto}
details.sub{background:var(--surface);border:1px solid var(--line);border-radius:8px;margin:8px 0;padding:8px 12px}
details.sub summary{cursor:pointer;font-weight:600}
details.sub .inner{padding-top:8px}
.term{font-weight:700;color:var(--leaf)}
.callout.shloka{font-style:italic;border-left:4px solid var(--saffron)}
.lesson img,.lesson svg{max-width:100%}
.wheel{max-width:100%;overflow-x:auto}
.opts button.sel{background:var(--saffron);border-color:var(--saffron);color:var(--on-saffron);font-weight:700}
.ptbar{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;margin:8px 0}
.chip.tm{background:var(--tint);border-color:var(--line);color:var(--ink)}
.chip.tm b{color:var(--navy);font-variant-numeric:tabular-nums}
:root[data-theme="dark"] .chip.tm b{color:var(--saffron)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .chip.tm b{color:var(--saffron)}}
.pal{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.pal button{width:36px;height:36px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-variant-numeric:tabular-nums}
.pal button.ans{background:var(--tint);border-color:var(--leaf)}
.pal button.cur{outline:2px solid var(--saffron);outline-offset:1px;font-weight:700}
.btn:disabled{opacity:.5;cursor:default}
.adm label{display:block;font-weight:600;margin:10px 0 4px}.adm input:not([type=checkbox]){padding:10px;border:1px solid var(--line);border-radius:10px;font-size:16px;width:100%;box-sizing:border-box;background:var(--surface);color:inherit}.adm .cks{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0;align-items:center}.adm .ck{display:inline-flex;gap:6px;align-items:center;margin:0;font-weight:500}.adm .arow{border:1px solid var(--line);border-radius:12px;padding:12px;margin:10px 0;background:var(--surface)}.adm .arow .cks input{width:auto}

.kick{display:inline-block;background:var(--saffron);color:var(--on-saffron);font-weight:700;padding:6px 14px;border-radius:999px;font-size:.95rem;margin:0 0 14px}
.fbrand{font-size:1rem;color:var(--ink)}.foot p{margin:6px 0}

/* ===== Home page redesign ===== */
:root{--c-maths:#e0457b;--c-science:#1fa37a;--c-physics:#3b6fe0;--c-chemistry:#8a4fd6;--c-biology:#2e9e4f;--c-hindi:#e8731a;--c-english:#0f8fb5;--c-sst:#b5792a;--c-history:#b5792a;--c-polsci:#b5792a;--c-geography:#b5792a;--c-economics:#c0392b;--c-accountancy:#7a6a1f;--c-business:#7a6a1f;--c-painting:#d6479f;
 --shadow:0 10px 30px rgba(20,30,90,.12);--grad-hero:linear-gradient(135deg,#17236b 0%,#243a9c 55%,#3b4fc4 100%)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--shadow:0 10px 30px rgba(0,0,0,.45);--grad-hero:linear-gradient(135deg,#0a0f33 0%,#14205e 60%,#1f2f86 100%)}}
:root[data-theme="dark"]{--shadow:0 10px 30px rgba(0,0,0,.45);--grad-hero:linear-gradient(135deg,#0a0f33 0%,#14205e 60%,#1f2f86 100%)}
html{scroll-behavior:smooth}
.lnav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-size:1.45rem;margin-right:auto}
.brand svg{flex:none}
.lnavl{display:none;gap:22px}
.lnavl a{color:var(--on-navy);text-decoration:none;opacity:.88;font-weight:500}.lnavl a:hover{opacity:1;text-decoration:underline}
@media (min-width:900px){.lnavl{display:flex}.lnav{flex-wrap:nowrap}}
.hero{background:var(--grad-hero);position:relative;overflow:hidden;padding:44px 0 56px}
.hero:before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,176,74,.35),transparent 65%)}
.herogrid{display:grid;gap:26px;grid-template-columns:1fr;align-items:center;position:relative}
@media (min-width:860px){.herogrid{grid-template-columns:1.05fr .95fr}.hero{padding:64px 0 72px}}
.hero h1{font-size:clamp(1.9rem,5.2vw,3rem);line-height:1.18;margin:.2em 0 .4em}
.lead{font-size:1.1rem}
.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.btn.ghost{background:transparent;color:var(--on-navy);border:2px solid rgba(255,255,255,.55);text-decoration:none;display:inline-block}
.btn.big{padding:13px 22px;font-size:1.05rem}
.chips2{list-style:none;padding:0;margin:22px 0 0;display:flex;gap:10px;flex-wrap:wrap}
.chips2 li{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:6px 12px;border-radius:999px;font-size:.9rem}
.chips2 .ico{width:1.1em;height:1.1em}
.heroimg{max-width:520px;margin:0 auto;width:100%}
.heroart{width:100%;height:auto;display:block}
.fl{animation:flt 6s ease-in-out infinite}.fl.b{animation-duration:7.5s;animation-delay:-2s}.fl.c{animation-duration:9s;animation-delay:-4s}
@keyframes flt{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
@media (prefers-reduced-motion:reduce){.fl{animation:none}html{scroll-behavior:auto}}
.statband{background:var(--surface);border-bottom:1px solid var(--line)}
.stats2{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px;padding-block:20px}
.stats2 div{text-align:center}.stats2 b{display:block;font-family:var(--display);font-size:1.9rem;color:var(--navy)}.stats2 span{color:var(--muted);font-size:.9rem}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stats2 b{color:var(--saffron)}}
:root[data-theme="dark"] .stats2 b{color:var(--saffron)}
.lsec{padding-block:44px}.lsec h2,.subband h2{font-family:var(--display);font-size:clamp(1.5rem,3.6vw,2.1rem);margin:0 0 .3em;text-wrap:balance}
.ctiles2{display:grid;grid-template-columns:repeat(auto-fit,minmax(138px,1fr));gap:14px;margin-top:18px}
.ctile2{position:relative;border:0;border-radius:18px;padding:16px;color:#fff;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:2px;min-height:130px;box-shadow:var(--shadow);transition:transform .15s}
.ctile2:hover,.ctile2:focus-visible{transform:translateY(-4px)}
.ctile2 em{font-style:normal;font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;opacity:.9}
.ctile2 b{font-family:var(--display);font-size:2.6rem;line-height:1}.ctile2 span{font-weight:700}.ctile2 small{opacity:.9}
.band-f{background:linear-gradient(135deg,#1fa37a,#117a9a)}.band-b{background:linear-gradient(135deg,#ee8a1c,#d6451f)}.band-s{background:linear-gradient(135deg,#6a49d6,#3b4fc4)}
.subband{background:var(--tint);padding:44px 0}.subband.alt{background:var(--surface);border-block:1px solid var(--line)}
.subrow{display:flex;gap:14px 18px;flex-wrap:wrap;margin-top:18px}
.subpill{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 16px 6px 6px;box-shadow:0 2px 8px rgba(20,30,90,.06)}
.subpill b{font-weight:700}
.subic.big,.subj .subic{width:42px;height:42px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--c,var(--saffron));color:#fff}
.subic.big .ico,.subj .subic .ico{width:22px;height:22px;stroke:#fff}
[data-sub="maths"]{--c:var(--c-maths)}[data-sub="science"]{--c:var(--c-science)}[data-sub="physics"]{--c:var(--c-physics)}[data-sub="chemistry"]{--c:var(--c-chemistry)}[data-sub="biology"]{--c:var(--c-biology)}[data-sub="hindi"]{--c:var(--c-hindi)}[data-sub="english"]{--c:var(--c-english)}[data-sub="sst"],[data-sub="history"],[data-sub="polsci"],[data-sub="geography"]{--c:var(--c-sst)}[data-sub="economics"]{--c:var(--c-economics)}[data-sub="accountancy"],[data-sub="business"]{--c:var(--c-accountancy)}[data-sub="painting"]{--c:var(--c-painting)}
.subj[data-sub]{border-top-color:var(--c)}
.fgrid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin-top:20px}
.feat2{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 2px 10px rgba(20,30,90,.05);transition:transform .15s,box-shadow .15s}
.feat2:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feat2 h3{margin:12px 0 4px;font-size:1.1rem}.feat2 p{margin:0;color:var(--muted)}
.fic{width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;color:#fff}.fic .ico{width:26px;height:26px;stroke:#fff}
.fic.fb{background:linear-gradient(135deg,#4a7bea,#2b4fc4)}.fic.fg{background:linear-gradient(135deg,#2fb98a,#1a8060)}.fic.fo{background:linear-gradient(135deg,#ffa033,#e0661a)}.fic.fp{background:linear-gradient(135deg,#a066e6,#6a3bc4)}.fic.fr{background:linear-gradient(135deg,#f0644a,#c2321f)}
.peekgrid{display:grid;gap:28px;align-items:center}@media (min-width:860px){.peekgrid{grid-template-columns:1fr 1fr}}
ul.tick,ul.clock{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:10px}
ul.tick li,ul.clock li{position:relative;padding-left:30px}
ul.tick li:before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--good);color:#fff;font-size:.8rem;display:flex;align-items:center;justify-content:center}
ul.clock li:before{content:"•";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--soft);color:var(--saffron);font-size:1.3rem;line-height:22px;text-align:center}
.lessoncard{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--shadow);max-width:460px;width:100%;justify-self:center}
.lhead span{display:block;color:var(--muted);font-size:.8rem}.lhead b{font-family:var(--display);font-size:1.15rem}
.lessonart{width:100%;height:auto;max-height:240px;margin-top:8px}
.formula{font-family:Georgia,serif;font-size:1.5rem;font-weight:700;text-align:center;background:var(--soft);border-radius:12px;padding:8px;margin:8px 0}
.sm{font-size:.9rem}.fakebtn{display:inline-block;background:var(--good);color:#fff;padding:8px 16px;border-radius:999px;font-weight:700;margin-top:6px}
.steps2{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.steps2 li{text-align:center}.steps2 h3{margin:12px 0 4px}.steps2 p{margin:0;color:var(--muted)}
.stepn{position:relative;display:inline-flex;width:76px;height:76px;border-radius:50%;background:linear-gradient(135deg,#ffb04a,#ee7a12);align-items:center;justify-content:center;box-shadow:var(--shadow)}
.stepn .ico{width:34px;height:34px;stroke:#2a1700}.stepn i{position:absolute;right:-4px;top:-4px;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#fff;font-style:normal;font-weight:700;font-size:.85rem;display:flex;align-items:center;justify-content:center;border:2px solid var(--surface)}
.schgrid{display:grid;gap:16px;margin-top:18px}@media (min-width:760px){.schgrid{grid-template-columns:1fr 1fr}}
.schcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px}.schcard.soon{background:var(--soft)}
.schcard h3{margin:0 0 6px;display:flex;align-items:center;gap:8px}.dot{width:12px;height:12px;border-radius:50%;display:inline-block}.dot.ok{background:var(--good)}.dot.wait{background:var(--saffron)}
.cta2{margin-top:18px;background:var(--grad-hero);color:#fff;border-radius:18px;padding:18px 20px;display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta2 b{display:block;font-size:1.1rem}.cta2 span{opacity:.9}.cta2 .row{margin:0}.cta2 .btn{text-decoration:none;display:inline-block}
.pgrid{display:grid;gap:18px;margin-top:20px}@media (min-width:760px){.pgrid{grid-template-columns:1fr 1fr}}
.pcard{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px;display:flex;flex-direction:column;gap:6px}
.pcard.best{border:2px solid var(--saffron);box-shadow:var(--shadow)}
.pcard h3{margin:0;font-size:1.2rem}.price{font-family:var(--display);font-size:2.6rem;margin:4px 0;color:var(--navy)}.price small{font-size:1rem;color:var(--muted)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .price{color:var(--saffron)}}
:root[data-theme="dark"] .price{color:var(--saffron)}
.pcard .btn{margin-top:auto;text-align:center;text-decoration:none;display:block}.pcard ul{margin-bottom:18px}
.ribbon{position:absolute;top:-13px;right:20px;background:var(--saffron);color:var(--on-saffron);font-weight:700;font-size:.8rem;padding:4px 12px;border-radius:999px}
.faq{display:grid;gap:10px;margin-top:16px;max-width:820px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:4px 16px}
.faq summary{cursor:pointer;font-weight:700;padding:12px 0}.faq p{margin:0 0 14px;color:var(--muted)}

/* ===== Level practice ===== */
.lvgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:10px 0 6px}
.lvbtn{border:0;border-radius:16px;padding:14px;color:#fff;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:2px;min-height:78px;box-shadow:var(--shadow);transition:transform .15s}
.lvbtn:hover,.lvbtn:focus-visible{transform:translateY(-3px)}
.lvbtn b{font-size:1.1rem}.lvbtn small{opacity:.92}
.lvbtn.lv1{background:linear-gradient(135deg,#2fb98a,#1a8060)}.lvbtn.lv2{background:linear-gradient(135deg,#ffa033,#e0661a)}.lvbtn.lv3{background:linear-gradient(135deg,#f0644a,#b62a1a)}.lvbtn.lv0{background:linear-gradient(135deg,#6a49d6,#3b4fc4)}
.lvtag{display:inline-block;padding:1px 10px;border-radius:999px;color:#fff;font-size:.8rem;font-weight:700}
.lvtag.lv1{background:#1a8060}.lvtag.lv2{background:#d9661a}.lvtag.lv3{background:#b62a1a}
.tph{margin:16px 0 6px}
.tprow{display:grid;grid-template-columns:1fr 90px 46px;gap:10px;align-items:center;margin:6px 0}
.tprow span{font-size:.92rem}.tprow b{text-align:right}.tprow b.weak{color:#c0392b}
@media (max-width:420px){.tprow{grid-template-columns:1fr 60px 42px}}

/* ---- online mode: forms, payment, admin, security ---- */
.payg{display:grid;gap:16px;grid-template-columns:240px 1fr;align-items:start}
@media(max-width:640px){.payg{grid-template-columns:1fr}}
.qrbox{background:#fff;border:1px solid var(--bd,#ddd);border-radius:14px;padding:12px;text-align:center}
.qrbox img{width:100%;max-width:220px;height:auto;display:block;margin:0 auto}
.qrbox small{color:#333;font-weight:700}
.upiid{font-size:18px;word-break:break-all;user-select:all}
.admstat{margin-bottom:14px}
#wm{position:fixed;inset:-20%;z-index:9998;pointer-events:none;display:flex;flex-wrap:wrap;gap:46px 70px;transform:rotate(-24deg);opacity:.07;font:600 13px/1 sans-serif;color:#000;overflow:hidden}
@media(prefers-color-scheme:dark){#wm{color:#fff;opacity:.09}}
body[data-view]:not([data-view=landing]):not([data-view=pay]):not([data-view=admin]) main,body[data-view]:not([data-view=landing]) main{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
body.sec-blur:not([data-view=pay]):not([data-view=admin]) #root{filter:blur(16px)}
@media print{body.noprint *{visibility:hidden!important}body.noprint::before{content:"Printing is disabled";visibility:visible!important;font:20px sans-serif}}

/* goal & ranks */
.goalcard{background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--saffron);border-radius:10px;padding:14px 16px;margin:12px 0}
.gc1{display:flex;align-items:center;gap:12px}.gc1 small{display:block;color:var(--muted)}.gc1 b{font-size:1.25rem;color:var(--navy)}
:root[data-theme="dark"] .gc1 b{color:var(--saffron)}@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .gc1 b{color:var(--saffron)}}
.rkic{font-size:2rem}.gchip{margin-left:auto;color:#fff;font-weight:800;border-radius:8px;padding:4px 12px;font-size:1.1rem}.gchip.big2{display:inline-block;font-size:1.6rem;margin:4px 0}
.chgoal .gchip{margin:0}.gbar,.gaccbar{height:10px;background:var(--tint);border-radius:6px;overflow:hidden;position:relative;margin:10px 0 4px}
.gbar i,.gaccbar i{display:block;height:100%;background:var(--saffron);border-radius:6px;transition:width .5s}.gaccbar{overflow:visible}.gaccbar i{background:var(--leaf)}
.gaccbar u{position:absolute;top:-4px;bottom:-4px;width:3px;background:var(--navy);border-radius:2px}
:root[data-theme="dark"] .gaccbar u{background:#fff}@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .gaccbar u{background:#fff}}
.gsub,.gmsg{margin:4px 0;font-size:.92rem}.gmsg{font-weight:700}.gaccl{display:flex;justify-content:space-between;font-size:.9rem}
.chgoal{display:flex;gap:12px;align-items:center;background:var(--soft);border-radius:8px;padding:10px 12px;margin:10px 0}.chgoal small{display:block;color:var(--muted)}
.goalband{background:var(--soft);padding:34px 0;text-align:center}.goalband .lead2{max-width:760px;margin:8px auto 18px}
.ladder{display:flex;gap:8px;align-items:flex-end;justify-content:center;flex-wrap:wrap;margin:14px 0}
.rung{background:var(--surface);border:1px solid var(--line);border-bottom:4px solid var(--saffron);border-radius:8px;padding:10px 8px;min-width:96px;display:flex;flex-direction:column;justify-content:flex-end;min-height:calc(var(--h) + 60px)}
.rung span{font-size:1.6rem}.rung small{color:var(--muted);font-size:.75rem}
.gradestrip{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:10px 0}.gradestrip span{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:4px 12px}
#goalfloat{position:fixed;left:0;right:0;margin:0 auto;width:max-content;bottom:10px;z-index:50;background:var(--navy);color:var(--on-navy);border-radius:30px;padding:5px 8px 5px 14px;display:flex;gap:10px;align-items:center;box-shadow:0 3px 12px rgba(0,0,0,.28);max-width:calc(100vw - 24px);font-size:.8rem;line-height:1.2}#goalfloat span{white-space:nowrap}#goalfloat .gfx{background:none;border:0;color:inherit;font-size:1.2rem;line-height:1;cursor:pointer;padding:2px 6px;opacity:.75}
#goalfloat .btn{white-space:nowrap}@media print{#goalfloat{display:none}}
body{padding-bottom:64px}

.award{margin:8px 0}.coinline{font-size:1.3rem;font-weight:800;color:var(--saffron);margin:4px 0}
.confetti{position:relative;height:0;overflow:visible;pointer-events:none}.confetti i{position:absolute;top:-120px;font-style:normal;font-size:1.4rem;animation:cf 2.6s ease-in forwards}
@keyframes cf{to{transform:translateY(420px) rotate(360deg);opacity:0}}@media (prefers-reduced-motion:reduce){.confetti{display:none}}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin:10px 0}.kpis div{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--saffron);border-radius:8px;padding:10px;text-align:center}.kpis b{display:block;font-size:1.25rem}.kpis small{color:var(--muted)}
.sgrow{display:grid;grid-template-columns:110px 1fr 90px;gap:10px;align-items:center;margin:8px 0}.sgbar{height:16px;background:var(--tint);border-radius:8px;position:relative}.sgbar i{display:block;height:100%;border-radius:8px}.sgbar u{position:absolute;left:80%;top:-3px;bottom:-3px;width:3px;background:var(--navy)}
:root[data-theme="dark"] .sgbar u{background:#fff}@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .sgbar u{background:#fff}}
.sgrow em{font-style:normal;font-size:.8rem;color:var(--muted)}.sgrow b{text-align:right}
.days14{display:flex;gap:5px}.days14 span{flex:1;height:26px;border-radius:5px;background:var(--tint)}.days14 span.on{background:var(--saffron)}
.badges{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}.badge{background:var(--surface);border:1px dashed var(--line);border-radius:10px;padding:10px;text-align:center;opacity:.55}.badge.got{opacity:1;border:2px solid var(--saffron);background:var(--soft)}.badge span{font-size:1.8rem;display:block}.badge small{display:block;color:var(--muted);font-size:.75rem}
.certcv{width:100%;height:auto;border:1px solid var(--line);border-radius:6px}.gfbtn{background:none;border:0;color:inherit;font:inherit;cursor:pointer}
@media (max-width:480px){.sgrow{grid-template-columns:80px 1fr 70px}}

.synov{position:fixed;inset:0;background:rgba(10,14,40,.62);z-index:100;display:flex;align-items:flex-start;justify-content:center;overflow:auto;padding:20px 12px}
.synbox{background:var(--surface);color:var(--ink);border-radius:14px;border-top:6px solid var(--saffron);max-width:880px;width:100%;padding:18px 20px;position:relative;box-shadow:0 10px 40px rgba(0,0,0,.4);animation:pop .3s}
@keyframes pop{from{transform:scale(.94);opacity:0}}.synx{position:absolute;right:10px;top:8px;border:0;background:none;font-size:1.3rem;cursor:pointer;color:inherit}
.syn{list-style:none;padding:0;margin:10px 0}.syn li{padding:8px 0;border-bottom:1px solid var(--line)}.syn li b{display:block}.syn li span{color:var(--muted);font-size:.9rem}
.mmwrap{overflow-x:auto;background:var(--tint);border-radius:10px}.mm{width:100%;min-width:560px;height:auto}
.mmn{fill:#fff;font-weight:700}.mmt{fill:var(--ink)}.mmc{fill:var(--saffron)}.mmh{fill:#2a1700;font-weight:800;text-anchor:middle}
.mmleaf{fill:var(--surface)}

/* stream picker (class 11/12) */
.streampick{margin:18px 0 8px;padding:18px;border:1px solid var(--line,#e3e6f0);border-radius:16px;background:#fff}
.streampick h2{margin:0 0 4px}
.strgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:14px 0}
.strcard{display:flex;flex-direction:column;gap:6px;align-items:flex-start;text-align:left;padding:16px;border:2px solid #f1d9b0;border-radius:14px;background:#fff8ec;cursor:pointer;font:inherit;color:inherit}
.strcard:hover,.strcard:focus-visible{border-color:#ff9933;outline:none}
.strcard span{font-size:28px}.strcard strong{font-size:17px}.strcard small{opacity:.75}
.streambar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:10px 0;padding:10px 14px;border-radius:12px;background:#fff8ec;border:1px solid #f1d9b0}
.strall,.streambar .btn{cursor:pointer}

/* admin traffic */
.trchart{display:flex;align-items:flex-end;gap:3px;height:120px;margin:10px 0;padding:8px;border:1px solid #f1d9b0;border-radius:12px;background:#fff8ec;overflow-x:auto}
.trbar{flex:1 0 14px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center}
.trbar i{display:block;width:100%;background:#ff9933;border-radius:3px 3px 0 0}
.trbar small{font-size:9px;opacity:.7}
.trcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.trcols ul{list-style:none;margin:0;padding:0}
.trcols li{display:flex;justify-content:space-between;gap:8px;padding:4px 0;border-bottom:1px solid #eee;font-size:14px}
.trcols h4{margin:6px 0}

/* ===== cheers, formula gist, doubts ===== */
.gov{position:fixed;inset:0;background:rgba(10,14,40,.62);z-index:200;display:flex;align-items:center;justify-content:center;padding:16px;overflow:auto}
.gcard{background:var(--surface,#fff);color:var(--ink,#1c2340);border-radius:18px;padding:22px 20px;max-width:380px;width:100%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.35);animation:gpop .35s ease-out}
.gcard.wide{max-width:560px;text-align:left}.gcard.wide .gem{text-align:center}
.gem{font-size:56px;line-height:1.1}.gcard h3{margin:8px 0;font-size:21px}.gcard p{margin:6px 0}.gcard .qt{font-weight:600;color:var(--ink,#1c2340)}
.gact{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:14px}.gcard textarea{width:100%;font:inherit;padding:10px;border:1px solid var(--line,#dfe3f1);border-radius:10px;margin-top:6px}
@keyframes gpop{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
.fgist{background:var(--soft,#fff7ec);border:1px solid var(--line,#ffd9a8);border-radius:12px;padding:8px 12px;margin:10px 0}.fgist summary{cursor:pointer;font-weight:700;color:var(--ink,#1c2340)}
.fgist .fgrp h4{margin:10px 0 4px;font-size:14px;color:var(--ink,#1c2340)}.fgist ul{margin:0;padding-left:18px}.fgist li{margin:4px 0;font-family:"Noto Sans Devanagari",system-ui,sans-serif;line-height:1.5}
.fgist.open2{background:var(--soft,#fff7ec);margin:12px 0}.fgist.open2 li small{background:#ff9933;color:#1c2340;border-radius:6px;padding:0 6px;margin-right:6px;font-weight:700}
.nbadge{background:#e0472b;color:#fff;border-radius:10px;padding:0 6px;font-size:12px}
.dcard{border:1px solid var(--line,#dfe3f1);border-radius:12px;padding:10px 14px;margin:10px 0;background:var(--surface,#fff)}.dans{background:var(--tint,#eef8f1);border-left:4px solid #1a8a3c;border-radius:8px;padding:8px 10px;margin-top:6px}
.fgist .fbody{max-height:320px;overflow:auto;padding-right:6px}
.gov .confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden}
.gov .confetti i{position:absolute;top:-30px;font-style:normal;font-size:22px}
.gov .confetti i{animation:cf2 3.2s ease-in forwards}@keyframes cf2{to{transform:translateY(110vh) rotate(360deg);opacity:.2}}

/* ===== Landing upgrade: why, process demo, slogans, trust, final call ===== */
.kw{font-weight:800;background:linear-gradient(transparent 60%,rgba(238,138,28,.38) 0);padding:0 2px;border-radius:2px}
.grad{background:linear-gradient(90deg,#ee8a1c,#e0457b 60%,#6d4fe0);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.kick{transition:opacity .35s,transform .35s;min-height:1.6em}
.kick.fade{opacity:0;transform:translateY(-6px)}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.kick{transition:none}}
.whygrid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-top:18px}
.whycard{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 20px 18px;box-shadow:var(--shadow);overflow:hidden;transition:transform .25s,box-shadow .25s}
.whycard:before{content:"";position:absolute;left:0;top:0;right:0;height:5px;background:linear-gradient(90deg,#ee8a1c,#e0457b,#6d4fe0)}
.whycard:hover{transform:translateY(-4px)}
.whycard .wic{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--soft);font-size:1.7rem;margin-bottom:10px}
.whycard h3{font-size:1.2rem;margin-bottom:6px;color:var(--navy)}
:root[data-theme="dark"] .whycard h3{color:var(--saffron)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .whycard h3{color:var(--saffron)}}
.whycard p{margin:0 0 12px;color:var(--ink)}
.wtag{display:inline-block;font-size:.8rem;font-weight:700;color:var(--on-saffron);background:var(--saffron);padding:3px 10px;border-radius:999px}
.procband{background:var(--tint)}
.ptabs{display:flex;gap:8px;overflow-x:auto;padding:6px 2px 10px;margin-top:14px;scrollbar-width:thin}
.ptab{flex:1 0 auto;display:flex;align-items:center;gap:8px;border:2px solid var(--line);background:var(--surface);color:var(--ink);border-radius:14px;padding:10px 14px;cursor:pointer;font:inherit;transition:all .2s;min-height:48px}
.ptab span{font-size:1.3rem}.ptab b{font-family:var(--display);white-space:nowrap}
.ptab.on{background:var(--navy);color:var(--on-navy);border-color:var(--navy);box-shadow:var(--shadow)}
.ptab:focus-visible,.qopts button:focus-visible{outline:3px solid var(--saffron);outline-offset:2px}
.pstage{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px;margin-top:6px;box-shadow:var(--shadow);min-height:260px}
.pgrid2{display:grid;gap:20px;grid-template-columns:1fr;align-items:center}
@media (min-width:820px){.pgrid2{grid-template-columns:1fr 1fr}}
.pexp h3{font-size:1.35rem;margin-bottom:8px}.pexp p{font-size:1.05rem}
.lessoncard.mini{margin:0}
.qdemo,.tdemo,.gdemo,.mdemo{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:16px}
.lv{display:flex;gap:6px;margin-bottom:10px}.lv i{font-style:normal;font-size:.8rem;font-weight:700;padding:3px 10px;border-radius:999px;background:var(--tint);color:var(--ink)}.lv i.on{background:var(--leaf);color:#fff}
.qt{font-weight:700;font-size:1.1rem;margin:0 0 10px}
.qopts{display:grid;gap:8px;grid-template-columns:1fr 1fr}
.qopts button{font:inherit;padding:12px;border-radius:12px;border:2px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;min-height:48px;transition:all .15s}
.qopts button:hover{border-color:var(--saffron)}
.qopts button.right{background:#dff5e8;border-color:#1f9d5c;color:#0b4a2b}
.qopts button.wrong{background:#fde3e3;border-color:#d44;color:#6a1111}
.qfb{margin:12px 0 0;padding:10px 12px;border-radius:12px;background:var(--soft)}
.tbar{display:flex;justify-content:space-between;font-weight:700;margin-bottom:10px}
.tpal{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.tpal i{font-style:normal;text-align:center;padding:8px 0;border-radius:8px;border:1px solid var(--line);background:var(--surface)}
.tpal i.ans{background:var(--tint);border-color:var(--leaf)}.tpal i.cur{outline:2px solid var(--saffron);font-weight:800}
.tres{display:flex;align-items:baseline;gap:10px;margin-top:12px;padding-top:10px;border-top:1px dashed var(--line)}.tres b{font-family:var(--display);font-size:2rem;color:var(--leaf)}
.pbar{display:grid;grid-template-columns:110px 1fr 44px;gap:8px;align-items:center;margin:8px 0}
.pbar>div{height:12px;border-radius:999px;background:var(--tint);overflow:hidden}.pbar i{display:block;height:100%;background:linear-gradient(90deg,#ee8a1c,#e0457b);border-radius:999px}
.mrow{display:flex;align-items:center;gap:10px;padding:10px;border-radius:12px;background:var(--surface);border:1px solid var(--line);margin-bottom:8px}.mrow b{margin-left:auto;font-size:.82rem;background:var(--saffron);color:var(--on-saffron);padding:3px 10px;border-radius:999px}.mrow.ok b{background:var(--leaf);color:#fff}
.slgband{background:var(--grad-hero);color:var(--on-navy);padding:48px 0}
.slgband h2{color:var(--on-navy);text-align:center;margin-bottom:22px}
.slgwall{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.slgcard{border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);border-radius:18px;padding:20px;backdrop-filter:blur(3px);transition:transform .25s,background .25s}
.slgcard:hover{transform:translateY(-4px) rotate(-.4deg);background:rgba(255,255,255,.14)}
.slgcard b{display:block;font-family:var(--display);font-size:1.45rem;line-height:1.25;margin-bottom:6px;color:#ffd08a}
.slgcard span{opacity:.88}
.trustgrid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-top:16px}
.trustcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px}.trustcard>span{font-size:1.8rem}.trustcard h3{font-size:1.1rem;margin:6px 0}.trustcard p{margin:0;color:var(--muted)}
.finalcta{background:linear-gradient(135deg,#ee8a1c,#e0457b);color:#fff;text-align:center;padding:52px 0;margin-top:30px}
.finalcta h2{color:#fff;font-size:clamp(1.6rem,4.4vw,2.5rem)}.finalcta p{max-width:640px;margin:10px auto 18px;font-size:1.1rem}
.finalcta .row{justify-content:center}
.finalcta .btn.ghost{color:#fff;border-color:#fff}
.finalcta .btn.pri{background:#fff;color:#a8430a;border-color:#fff}
@media (max-width:520px){.qopts{grid-template-columns:1fr}.pbar{grid-template-columns:90px 1fr 40px}.pstage{padding:14px}}

/* Video lessons */
.vidbox{margin:14px 0;padding:14px;border:1px solid var(--line,#e3e6f0);border-radius:14px;background:#fff}
.vidbox h3{margin:0 0 10px}
.vid{margin:0 0 12px}.vid p{margin:6px 0 0}.vid small{color:var(--muted,#667)}
.vplay{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:16/9;border:0;border-radius:12px;background:#1f2f7a;color:#fff;font:700 18px inherit;font-family:inherit;cursor:pointer}
.vplay:hover{background:#2a3d99}
.vframe{position:relative;aspect-ratio:16/9;width:100%}
.vframe iframe{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:12px}

.freebar{background:#ff9933;color:#1b1b1b;text-align:center;padding:10px 0;font-size:1.05rem}
.freebar .wrap{display:flex;flex-direction:column;gap:2px;justify-content:center;align-items:center}
.freebar b{font-size:1.2rem;letter-spacing:.2px}.freebar span{font-weight:400;font-size:.72rem;opacity:.85;background:none;padding:0}
.ctile2{position:relative}.fbadge{position:absolute;top:8px;right:8px;background:#1e8e5a;color:#fff;font-style:normal;font-weight:800;font-size:.68rem;padding:2px 8px;border-radius:999px}

.logoimg{width:46px;height:46px;object-fit:contain;flex:none}
@media(max-width:480px){.logoimg{width:40px;height:40px}}

.hlogo{width:44px;height:44px;object-fit:contain;vertical-align:middle;margin-right:10px;background:#fff;border-radius:50%;padding:2px}
.top h1{display:flex;align-items:center}
@media(max-width:480px){.hlogo{width:36px;height:36px;margin-right:6px}}
.aibox{max-width:600px}.aichat{height:min(52vh,380px);overflow:auto;background:var(--bg,#f6f7fb);border:1px solid var(--line,#dfe3f1);border-radius:12px;padding:10px;margin:8px 0}
.aim{max-width:88%;padding:8px 12px;border-radius:14px;margin:6px 0;line-height:1.5;word-wrap:break-word}
.aim.me{margin-left:auto;background:#1f2f7a;color:#fff}.aim.bot{background:#fff;border:1px solid var(--line,#dfe3f1);color:var(--ink,#1c2340)}
.aisend{display:flex;gap:8px;align-items:flex-end}.aisend textarea{flex:1;margin:0}
.vlinks{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.vid{margin:8px 0}
.vlinks a.btn{text-decoration:none;color:var(--ink,#1c2340);display:inline-block}

.mmwrap2{background:var(--tint);border-radius:12px;padding:12px}
.mmroot{background:#1f2f7a;color:#fff;font-weight:800;text-align:center;border-radius:14px;padding:12px 14px;font-size:1.05rem;margin:0 auto 12px;max-width:520px}
.mmbr{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px}
.mmb{background:#fff;border:2px solid var(--mc);border-radius:12px;overflow:hidden}
.mmbh{background:var(--mc);color:#fff;font-weight:700;padding:8px 10px;font-size:.95rem}
.mmb ul{margin:0;padding:8px 10px 8px 26px;font-size:.88rem;line-height:1.45;color:#222}.mmb li{margin:3px 0}
.mmx{background:#fff;border-radius:12px;padding:10px 12px;margin-top:10px;border:1px solid #ddd}
.mmx h4{margin:0 0 6px;font-size:1rem;color:#1f2f7a}.mmx ul{margin:0;padding-left:18px;font-size:.88rem;color:#222}
.mmf{font-family:ui-monospace,Menlo,monospace}
.mmx dl{margin:0}.mmx dt{font-weight:700;color:#b8326e;margin-top:6px;font-size:.92rem}.mmx dd{margin:2px 0 0;font-size:.88rem;line-height:1.45;color:#222}

.pmm{background:#fff;border:2px solid #1f2f7a;border-radius:14px;overflow:hidden;color:#222}
.pmmh{background:#1f2f7a;color:#fff;padding:12px 14px}.pmmh small{opacity:.85}.pmmh h2{margin:2px 0 4px;color:#fff;font-size:1.25rem}
.pmmk{margin:0;font-size:.92rem;color:#ffd9a0;font-weight:600}
.pmmg{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px;padding:12px}
.pmmb{border:2px solid var(--mc);border-radius:10px;overflow:hidden;background:#fff}
.pmmbh{background:var(--mc);color:#fff;font-weight:700;padding:6px 10px;font-size:.92rem}
.pmmb ul{margin:0;padding:6px 10px 8px 24px;font-size:.85rem;line-height:1.4}.pmmb li{margin:2px 0}
.pmmf{margin:0 12px 10px;padding:8px 10px;background:#fff7e8;border:1px solid #ee8a1c;border-radius:10px}
.pmmfc{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.pmmfc span{background:#fff;border:1px solid #ee8a1c;border-radius:8px;padding:3px 8px;font-family:ui-monospace,Menlo,monospace;font-size:.85rem}
.pmmn{margin:0 12px 12px;padding:8px 10px;background:#fdecec;border:2px solid #c0392b;border-radius:10px}
.pmmn b{color:#c0392b}.pmmn ul{margin:6px 0 0;padding-left:20px;font-size:.85rem;line-height:1.4}
@media print{header,nav,.crumb,.row,footer,.wa,#back{display:none!important}.pmm{border:1px solid #000;break-inside:avoid}body{background:#fff}}

/* reaction chart & activities */
.srch{width:100%;box-sizing:border-box;padding:10px 12px;border:2px solid #1f2f7a;border-radius:10px;font-size:1rem;margin:6px 0}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 10px}.chip{border:1.5px solid #1f2f7a;background:#fff;color:#1f2f7a;border-radius:16px;padding:4px 10px;font-size:.82rem;cursor:pointer}.chip.on{background:#1f2f7a;color:#fff}
.rxi{background:#fff;border:1px solid #ddd;border-left:4px solid #ee8a1c;border-radius:8px;padding:8px 10px;margin:6px 0;color:#222}
.rxh{display:flex;justify-content:space-between;gap:8px;align-items:flex-start;flex-wrap:wrap}.rxt{font-size:.72rem;background:#fff3e0;color:#9a5300;border-radius:10px;padding:2px 8px;white-space:nowrap}
.rxe{font-family:Consolas,Menlo,monospace;font-size:.95rem;background:#f5f7ff;border-radius:6px;padding:6px 8px;margin:5px 0;overflow-x:auto;word-break:break-word}.rxo{font-size:.85rem;color:#444}
.aci{background:#fff;border:1px solid #ddd;border-radius:10px;margin:7px 0;color:#222}.aci summary{cursor:pointer;padding:10px 12px;display:flex;flex-direction:column;gap:2px}.aci summary small{color:#777}
.acb{padding:0 14px 12px}.acb p{margin:6px 0}.acb ol{margin:4px 0 4px 20px;padding:0}.acp{background:#fff3e0;border-radius:8px;padding:6px 8px}
[data-theme=dark] .rxi,[data-theme=dark] .aci{background:#1e2230;color:#eee;border-color:#333}[data-theme=dark] .rxe{background:#151826}[data-theme=dark] .chip{background:#1e2230;color:#cfd6ff}