@font-face{font-family:"Hind Siliguri";font-weight:400;font-display:swap;src:url(fonts/hind-siliguri-400.woff) format("woff")}
@font-face{font-family:"Hind Siliguri";font-weight:500 600;font-display:swap;src:url(fonts/hind-siliguri-600.woff) format("woff")}
@font-face{font-family:"Hind Siliguri";font-weight:700;font-display:swap;src:url(fonts/hind-siliguri-700.woff) format("woff")}
@font-face{font-family:"Baloo Da 2";font-weight:500 800;font-display:swap;src:url(fonts/baloo-da-2-bengali.woff2) format("woff2");unicode-range:U+0964-0965,U+0980-09FE,U+200C-200D,U+25CC}
@font-face{font-family:"Baloo Da 2";font-weight:500 800;font-display:swap;src:url(fonts/baloo-da-2-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2212}

:root{
  --navy:#2E3192;--navy-deep:#1E2070;--sky:#E3F1FC;--yellow:#FFCB05;--red:#ED1C24;--red-dark:#C4161C;--orange:#F15A22;--green:#12A150;
  --ink:#1A1F36;--muted:#5A6180;--line:#E1E4F2;--bg:#F3F4FB;--card:#fff;--soft:#FAFBFF;
  --r:14px;--sh:0 6px 22px rgba(46,49,146,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"Hind Siliguri",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:15px;line-height:1.5;color:var(--ink);background:var(--bg);min-height:100vh}
h1,h2,h3,.disp{font-family:"Baloo Da 2","Hind Siliguri",sans-serif;line-height:1.2}
a{color:var(--navy)}
button,input,select,textarea{font:inherit;color:inherit}
img{max-width:100%}
[hidden]{display:none!important}

/* login */
.gate{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,#FFFDF5,#EEF0FF)}
.gate-box{background:#fff;border-radius:24px;box-shadow:0 20px 50px rgba(46,49,146,.16);padding:28px;width:100%;max-width:420px;border-top:7px solid var(--navy)}
.gate-box .logo{display:block;height:58px;margin:0 auto 10px}
.gate-box h1{text-align:center;color:var(--navy);font-size:24px}
.gate-box p.sub{text-align:center;color:var(--muted);margin-bottom:16px}
.demo-list{margin-top:16px;border-top:1px dashed var(--line);padding-top:12px}
.demo-list button{display:flex;justify-content:space-between;width:100%;border:1px solid var(--line);background:var(--soft);border-radius:10px;padding:7px 10px;margin-top:6px;cursor:pointer;font-size:13.5px;text-align:left}
.demo-list button b{color:var(--navy)}

/* shell */
.shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
.side{background:var(--navy-deep);color:#fff;padding:14px 12px;position:sticky;top:0;height:100vh;overflow-y:auto}
.side .brand{background:#fff;border-radius:14px;padding:9px;text-align:center;margin-bottom:10px}
.side .brand img{height:40px}
.side .who{font-size:13px;opacity:.85;padding:0 8px 10px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:8px}
.side .who b{display:block;font-size:15px;opacity:1}
.side .grp{font-size:11px;text-transform:uppercase;letter-spacing:.8px;opacity:.55;margin:12px 10px 4px}
.side a{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;border-radius:10px;padding:8px 10px;font-weight:600;font-size:14.5px}
.side a:hover{background:rgba(255,255,255,.08)}
.side a.on{background:var(--yellow);color:var(--navy-deep)}
.side a i{font-style:normal;width:22px;text-align:center}
.side a .cnt{margin-left:auto;background:var(--red);color:#fff;border-radius:99px;font-size:11px;padding:0 7px}
.main{min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:10px;padding:12px 22px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top h2{font-size:21px;color:var(--navy);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .menu{display:none;border:0;background:var(--sky);color:var(--navy);border-radius:10px;width:38px;height:38px;font-size:20px;cursor:pointer}
.bell{position:relative;border:0;background:var(--sky);border-radius:50%;width:40px;height:40px;cursor:pointer;font-size:18px}
.bell span{position:absolute;top:-3px;right:-3px;background:var(--red);color:#fff;border-radius:99px;font-size:11px;min-width:18px;height:18px;display:grid;place-items:center;padding:0 4px;font-weight:700}
.content{padding:20px 22px 60px;max-width:1280px;width:100%}

/* mobile app (parent) */
.app{max-width:560px;margin:0 auto;min-height:100vh;background:var(--bg);padding-bottom:78px}
.app-top{background:linear-gradient(135deg,var(--navy),var(--navy-deep));color:#fff;padding:14px 16px 18px;border-radius:0 0 24px 24px;position:relative}
.app-top .row1{display:flex;align-items:center;gap:10px}
.app-top img.lg{height:30px;background:#fff;border-radius:8px;padding:3px 6px}
.app-top .bell{background:rgba(255,255,255,.15);color:#fff}
.kid{display:flex;align-items:center;gap:12px;margin-top:14px}
.kid .av{width:54px;height:54px;border-radius:50%;background:var(--yellow);color:var(--navy-deep);display:grid;place-items:center;font-size:24px;font-weight:800;overflow:hidden;flex:none}
.kid .av img{width:100%;height:100%;object-fit:cover}
.kid b{font-size:19px;display:block;font-family:"Baloo Da 2","Hind Siliguri"}
.kid small{opacity:.85}
.kid select{margin-left:auto;background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:10px;padding:5px 8px;max-width:140px}
.kid select option{color:var(--ink)}
.app-body{padding:14px}
.app-body h3.sec{font-size:18px;color:var(--navy);margin:18px 2px 8px}
.tabs{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:560px;background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);z-index:30;padding-bottom:env(safe-area-inset-bottom)}
.tabs a{text-decoration:none;color:var(--muted);text-align:center;padding:8px 2px 7px;font-size:12px;font-weight:600}
.tabs a i{display:block;font-style:normal;font-size:21px;line-height:1.2}
.tabs a.on{color:var(--navy)}
.tabs a.on i{transform:scale(1.12)}
.grid-ic{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.grid-ic a{background:#fff;border-radius:16px;padding:12px 4px;text-align:center;text-decoration:none;color:var(--ink);font-size:12.5px;font-weight:600;box-shadow:var(--sh);line-height:1.25}
.grid-ic a i{display:grid;place-items:center;font-style:normal;font-size:24px;width:44px;height:44px;border-radius:14px;margin:0 auto 6px;background:var(--sky)}
.back{display:inline-flex;align-items:center;gap:6px;text-decoration:none;font-weight:700;margin-bottom:8px}

/* cards, kpis */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--sh);padding:16px;margin-bottom:14px}
.card h3{font-size:17px;color:var(--navy);margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.card.hl{border-left:5px solid var(--yellow)}
.card.warn{border-left:5px solid var(--orange);background:#FFF8F3}
.card.good{border-left:5px solid var(--green)}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:14px;align-items:start}
.cols .card{margin-bottom:0}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:14px}
.kpi{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:14px 16px;border-top:4px solid var(--navy)}
.kpi:nth-child(4n+2){border-top-color:var(--yellow)}.kpi:nth-child(4n+3){border-top-color:var(--green)}.kpi:nth-child(4n+4){border-top-color:var(--red)}
.kpi small{color:var(--muted);font-weight:600;display:block}
.kpi b{font-size:25px;color:var(--navy-deep);font-family:"Baloo Da 2","Hind Siliguri";display:block;line-height:1.3}
.kpi span{font-size:12.5px;color:var(--muted)}
.list .it{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}
.list .it:last-child{border-bottom:0}
.list .it .ic{flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--sky);font-size:19px}
.list .it .tx{flex:1;min-width:0}
.list .it .tx b{display:block}
.list .it .tx small,.muted{color:var(--muted)}
.list .it.unread .tx b::after{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--red);margin-left:6px;vertical-align:middle}
.empty{color:var(--muted);text-align:center;padding:18px 8px}
.pre{white-space:pre-wrap}

/* tables */
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);padding:8px 10px;border-bottom:2px solid var(--line);white-space:nowrap}
table.t td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.t tr.click{cursor:pointer}
table.t tr.click:hover td{background:var(--soft)}
table.t .r{text-align:right;white-space:nowrap}
table.t tfoot td{font-weight:700;border-top:2px solid var(--line)}
.tools{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.tools input,.tools select{max-width:240px}
.tools .sp{flex:1}

/* forms */
label{display:block;font-weight:600;font-size:13.5px;color:var(--muted);margin-bottom:10px}
input,select,textarea{display:block;width:100%;margin-top:4px;border:1.5px solid var(--line);border-radius:10px;padding:9px 11px;background:#fff;font-size:15px;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(46,49,146,.12)}
input[type=checkbox],input[type=radio]{display:inline-block;width:auto;margin:0 6px 0 0;vertical-align:middle}
label.chk{display:flex;align-items:center;font-weight:600;color:var(--ink);cursor:pointer}
.fg{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.fg .full{grid-column:1/-1}
.checks{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:6px}
.checks label{margin:0;font-weight:500;color:var(--ink);display:flex;align-items:center}
.hint{font-size:13px;color:var(--muted);margin:-4px 0 10px}

/* buttons, badges */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:11px;padding:9px 16px;font-weight:700;cursor:pointer;background:var(--navy);color:#fff;text-decoration:none;font-size:14.5px;white-space:nowrap}
.btn:hover{filter:brightness(1.08)}
.btn.y{background:var(--yellow);color:var(--navy-deep)}
.btn.g{background:var(--green)}
.btn.r{background:var(--red)}
.btn.ghost{background:var(--sky);color:var(--navy)}
.btn.sm{padding:5px 11px;font-size:13px;border-radius:9px}
.btn.block{display:flex;width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btns{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.bdg{display:inline-block;border-radius:99px;padding:1px 9px;font-size:12px;font-weight:700;background:var(--sky);color:var(--navy);white-space:nowrap}
.bdg.g{background:#E3F6EA;color:#0B7A3B}.bdg.r{background:#FFE7E5;color:var(--red-dark)}.bdg.y{background:#FFF4C7;color:#7A5B00}.bdg.o{background:#FFEBDD;color:#B53D0A}.bdg.m{background:#EEF0F5;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:99px;padding:5px 12px;font-weight:600;font-size:13.5px;cursor:pointer}
.chip.on{background:var(--navy);border-color:var(--navy);color:#fff}
.bar{height:9px;background:var(--line);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--yellow),var(--green));border-radius:99px}
.risk-high{color:var(--red-dark);font-weight:700}.risk-medium{color:#B53D0A;font-weight:700}.risk-low{color:#0B7A3B;font-weight:700}

/* modal, toast */
.modal-bg{position:fixed;inset:0;background:rgba(20,22,60,.45);z-index:100;display:flex;align-items:flex-start;justify-content:center;padding:4vh 12px;overflow-y:auto}
.modal{background:#fff;border-radius:18px;width:100%;max-width:640px;box-shadow:0 30px 70px rgba(0,0,0,.25);animation:pop .15s ease-out}
.modal.wide{max-width:960px}
.modal header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.modal header h3{color:var(--navy);font-size:19px}
.modal header button{border:0;background:var(--sky);border-radius:50%;width:32px;height:32px;cursor:pointer;font-size:16px}
.modal .mb{padding:16px 18px}
.modal footer{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;padding:12px 18px;border-top:1px solid var(--line)}
@keyframes pop{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--navy-deep);color:#fff;padding:10px 18px;border-radius:99px;font-weight:700;z-index:200;opacity:0;pointer-events:none;transition:opacity .2s;max-width:90vw;text-align:center}
.toast.on{opacity:1}
.toast.err{background:var(--red-dark)}

/* practice */
.prac-stage{background:#fff;border-radius:22px;box-shadow:var(--sh);padding:18px;text-align:center;min-height:260px;display:flex;flex-direction:column;justify-content:center;align-items:center}
.flash-num{font-family:"Baloo Da 2",sans-serif;font-size:92px;font-weight:800;color:var(--navy);line-height:1;min-height:100px;letter-spacing:2px}
.flash-num.neg{color:var(--red)}
.sheet{display:inline-grid;grid-auto-flow:column;gap:10px;margin:0 auto 10px}
.sheet .q{border:2px solid var(--line);border-radius:12px;padding:6px 10px;min-width:62px;font-family:"Baloo Da 2",monospace;font-size:20px;text-align:right;font-weight:700}
.sheet .q div{line-height:1.35}
.ans-in{font-size:30px;text-align:center;font-weight:800;max-width:220px;margin:10px auto;font-family:"Baloo Da 2",sans-serif}
.pad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:280px;margin:8px auto 0}
.pad button{border:0;background:var(--sky);border-radius:14px;padding:12px 0;font-size:22px;font-weight:800;color:var(--navy);cursor:pointer}
.pad button.ok{background:var(--green);color:#fff}
.score-big{font-family:"Baloo Da 2";font-size:54px;font-weight:800;color:var(--navy)}
.stars{font-size:34px;letter-spacing:4px}
.opt-row{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 12px}
.timer{font-family:"Baloo Da 2";font-weight:800;font-size:22px;color:var(--red-dark)}
.exam-q{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}
.exam-q .nums{font-family:"Baloo Da 2",monospace;font-size:18px;font-weight:700}
.exam-q input{max-width:120px;text-align:center;font-weight:700}

/* print sheets */
.print-only{display:none}
@media print{
  body{background:#fff}
  .no-print,.side,.top,.tabs,.app-top,.toast,.modal-bg{display:none!important}
  .print-only{display:block}
  .shell{display:block}
  .content,.app-body{padding:0}
  .card{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
}

@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;bottom:0;width:270px;z-index:60;transform:translateX(-100%);transition:transform .2s}
  .shell.nav-open .side{transform:none;box-shadow:0 0 0 100vw rgba(0,0,0,.35)}
  .top .menu{display:block}
  .top{padding:10px 14px}
  .content{padding:14px 14px 60px}
  .fg{grid-template-columns:1fr}
  .tools input,.tools select{max-width:none;flex:1 1 140px}
  .grid-ic{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:380px){.grid-ic{grid-template-columns:repeat(3,1fr)}.flash-num{font-size:72px}}