:root{--paper:#050f1f;--sheet:#fff;--ink:#0b1728;--ink2:#475569;--muted:#64748b;--blue:#1261d8;--press:#0a45a4;--onblue:#fff;--yellow:#f7b731;--cyan:#24b8ff;--red:#dc2626;--redbg:#fef2f2;--line:#8190a5;--edge:#0b2342;--grid2:#e2e8f0}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;min-height:100dvh;font:400 16px/1.6 'Hind Siliguri',system-ui,sans-serif;color:var(--ink);touch-action:manipulation;
background:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px) 0 0/44px 44px,linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px) 0 0/44px 44px,radial-gradient(ellipse at 50% 0,#0c2a52 0,#050f1f 62%) fixed,var(--paper)}
body:before{content:"";position:fixed;top:0;bottom:0;left:16px;width:2px;background:var(--yellow);box-shadow:5px 0 0 var(--yellow);opacity:.35}
.wrap{position:relative;z-index:1;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}
.top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 10px 36px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:800 20px/1.2 'Baloo Da 2',sans-serif}
.logo{width:40px;height:40px;border:2px solid var(--edge);border-radius:10px;background:var(--sheet);display:grid;place-items:center;overflow:hidden;font:800 13px/1 'Baloo Da 2',sans-serif}
.logo img{width:100%;height:100%;object-fit:contain}.logo.noimg img,.logo:not(.noimg) b{display:none}
.toplink{color:var(--blue);font-weight:600;text-decoration:none;padding:10px 6px}
.aside{display:none}
.sheet{flex:1;margin-top:6px;padding:22px 20px calc(28px + env(safe-area-inset-bottom));background:var(--sheet);border-top:3px solid var(--yellow);border-radius:22px 22px 0 0}
.sheet h1{margin:0;font:800 28px/1.3 'Baloo Da 2',sans-serif}
.sub{margin:0;color:var(--ink2)}
.alert{display:flex;gap:10px;margin-top:16px;padding:12px 14px;background:var(--redbg);border-left:4px solid var(--red);border-radius:4px 10px 10px 4px}
.alert svg{flex:none;width:22px;height:22px;margin-top:2px;color:var(--red)}.alert a{color:var(--blue);font-weight:600}
svg.i,.ic,.eye svg,.alert svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.eq{display:flex;flex-wrap:wrap;align-items:center;gap:4px 6px;margin-top:16px;padding:10px 0;font:600 13px/1.2 'Hind Siliguri',sans-serif;position:sticky;top:0;z-index:5;background:var(--sheet);border-bottom:1.5px dashed var(--line)}
.eq i{font-style:normal;color:var(--muted)}
.t{padding:6px 9px;border:1.5px dashed var(--line);border-radius:8px;color:var(--muted);transition:.25s}
.t.ok{background:var(--yellow);border:1.5px solid var(--edge);color:#1A1500}
.res{position:relative;min-width:44px;height:34px;display:grid;place-items:center;font:800 17px/1 'Baloo Da 2',sans-serif}
.res .q{color:var(--muted)}.res svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.res ellipse{fill:none;stroke:var(--yellow);stroke-width:3;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset .6s}
.res b{color:var(--blue);opacity:0;transform:scale(.6) rotate(-8deg);transition:.3s}
.eq.done .res ellipse{stroke-dashoffset:0}.eq.done .res b{opacity:1;transform:none}.eq.done .q{display:none}
.f{margin-top:18px;scroll-margin-top:70px}
.lab{display:flex;align-items:center;justify-content:space-between;min-height:24px;margin-bottom:6px;font-weight:600}
.lab a{color:var(--blue);font-size:14px;padding:8px 0}
.cnt{font-size:12.5px;font-weight:600;color:var(--muted)}
.tick{width:22px;height:22px;opacity:0;fill:none;stroke:var(--blue);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.tick path{stroke-dasharray:1;stroke-dashoffset:1}
.f.ok .tick{opacity:1}.f.ok .tick path{stroke-dashoffset:0;transition:stroke-dashoffset .35s}
.in{position:relative}
.ic{position:absolute;left:14px;top:50%;width:18px;height:18px;margin-top:-9px;color:var(--muted);pointer-events:none}
.in:focus-within .ic{color:var(--blue)}
input[type=text],input[type=tel],input[type=email],input[type=password]{width:100%;height:54px;padding:0 14px 0 44px;font:500 16px 'Hind Siliguri',sans-serif;color:var(--ink);background:var(--sheet);border:2px solid var(--line);border-radius:12px;outline:0;transition:border-color .15s,box-shadow .15s}
input[type=password],input.pr{padding-right:54px}
input:focus{border-color:var(--blue);box-shadow:0 0 0 4px var(--yellow)}
.f.bad input{border-color:var(--red)}
::placeholder{color:var(--muted);opacity:.8}
.eye{position:absolute;right:4px;top:50%;width:46px;height:46px;margin-top:-23px;display:grid;place-items:center;border:0;border-radius:10px;background:none;color:var(--muted);cursor:pointer}
.eye svg{width:22px;height:22px}.eye.on{--sl:inline}.eye:focus-visible,summary:focus-visible,.btn:focus-visible,.btn2:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.msg{margin:6px 0 0;font-size:14.5px;color:var(--red)}.msg:empty{display:none}
.hint{margin:6px 0 0;font-size:13.5px;color:var(--muted)}.f.bad .hint{display:none}
fieldset{min-width:0;margin:18px 0 0;padding:0;border:0}legend{padding:0}
.chips{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.chip{position:relative}
.chip input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
.chip span{display:flex;flex-direction:column;align-items:center;justify-content:center;height:62px;border:2px solid var(--line);border-radius:12px;background:var(--sheet);font:800 22px/1.2 'Baloo Da 2',sans-serif;transition:.15s}
.chip small{margin-top:2px;font:500 11.5px/1 'Hind Siliguri',sans-serif;color:var(--muted)}
.chip input:checked+span{background:var(--yellow);border-color:var(--edge);color:#1A1500;box-shadow:0 3px 0 var(--edge);transform:translateY(-2px)}
.chip input:checked+span small{color:#4A3D00}
.chip input:focus-visible+span{outline:3px solid var(--blue);outline-offset:2px}
.f.bad .chip span{border-color:var(--red)}
details{margin-top:14px}
summary{display:flex;align-items:center;gap:8px;min-height:44px;color:var(--blue);font-weight:600;cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
summary:before{content:"+";display:grid;place-items:center;width:24px;height:24px;border:1.5px dashed var(--blue);border-radius:6px;font:800 18px/1 'Baloo Da 2',sans-serif}
details[open] summary:before{content:"−"}summary small{color:var(--muted);font-weight:400}
details .f{margin-top:4px}
.str{display:flex;align-items:center;gap:5px;margin-top:10px}.str i{flex:1;height:5px;border-radius:9px;background:var(--grid2);transition:background .2s}
.str span{min-width:70px;text-align:right;font-size:13px;font-weight:600}
.caps{margin:6px 0 0;font-size:14px;color:var(--red)}
.chk{display:flex;align-items:center;gap:10px;margin-top:16px;min-height:44px;cursor:pointer}.chk input{width:22px;height:22px;accent-color:var(--blue)}
.btn,.btn2{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;border-radius:12px;font-family:'Hind Siliguri',sans-serif;text-decoration:none;cursor:pointer}
.btn{min-height:56px;margin-top:24px;border:0;background:var(--blue);color:var(--onblue);font-size:17px;font-weight:700;box-shadow:0 4px 0 var(--press);transition:transform .08s,box-shadow .08s}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 var(--press)}.btn[aria-busy=true]{opacity:.75;pointer-events:none}.btn:disabled{opacity:.6;box-shadow:none;cursor:not-allowed}
.btn2{min-height:50px;margin-top:12px;border:2px solid var(--edge);background:none;color:var(--ink);font-size:16px;font-weight:600}
.or{display:flex;align-items:center;gap:12px;margin-top:20px;color:var(--muted);font-size:14px}.or:before,.or:after{content:"";flex:1;border-top:1.5px dashed var(--line)}
.foot{margin:20px 0 0;text-align:center;font-size:13.5px;color:var(--muted)}.foot a{color:inherit;font-weight:600}
dialog{width:100%;max-width:440px;margin:auto auto 0;padding:0;border:2px solid var(--edge);border-radius:20px 20px 0 0;background:var(--sheet);color:var(--ink)}
dialog::backdrop{background:rgba(5,10,30,.6)}.dg{padding:22px 20px calc(22px + env(safe-area-inset-bottom))}.dg h2{margin:0 0 4px;font:800 22px/1.3 'Baloo Da 2',sans-serif}.dg p{margin:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.doodle{display:block;width:min(100%,340px);margin-top:28px;color:var(--ink2)}
.doodle path{fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.6s .3s ease forwards}
.doodle .h{stroke:var(--blue)}.doodle text{fill:currentColor;font:800 18px 'Baloo Da 2',sans-serif}
@keyframes draw{to{stroke-dashoffset:0}}
@media(min-width:600px){dialog{margin:auto;border-radius:16px;box-shadow:8px 8px 0 var(--yellow)}}
@media(min-width:960px){
body:before{content:"";position:fixed;top:0;bottom:0;left:16px;width:2px;background:var(--yellow);box-shadow:5px 0 0 var(--yellow);opacity:.35}
.wrap{display:grid;grid-template-columns:1fr 540px;grid-template-rows:auto 1fr;column-gap:64px;padding:0 56px 0 112px;align-items:center}
.top{grid-column:1/-1;padding:24px 0}
.aside{display:block}.aside .big{margin:0;font:800 clamp(36px,4vw,54px)/1.3 'Baloo Da 2',sans-serif}.aside p{max-width:440px;margin:12px 0 0;color:var(--ink2)}.aside .stat{font-weight:600;color:var(--ink)}
.sheet{flex:none;margin:0 0 40px;padding:32px;border:2px solid var(--edge);border-radius:16px;box-shadow:8px 8px 0 var(--yellow)}
.eq{position:static}
}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}

.top,.aside{--ink:#fff;--ink2:rgba(255,255,255,.72);--muted:rgba(255,255,255,.6);--blue:#24b8ff;--edge:rgba(255,255,255,.3);color:var(--ink)}
.top .logo{background:rgba(255,255,255,.12)}