@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 400;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiEyp8kv8JHgFVrJJbecnFHGPezSQ.woff2) format('woff2');
unicode-range: U+0900-097F, U+1CD0-1CF4, U+1CF7-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B0A;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 400;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiEyp8kv8JHgFVrJJnecnFHGPezSQ.woff2) format('woff2');
unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 400;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 500;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLGT9Z11lFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0900-097F, U+1CD0-1CF4, U+1CF7-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B0A;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 500;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLGT9Z1JlFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 500;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 600;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLEj6Z11lFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0900-097F, U+1CD0-1CF4, U+1CF7-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B0A;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 600;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLEj6Z1JlFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 600;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLCz7Z11lFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0900-097F, U+1CD0-1CF4, U+1CF7-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B0A;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLCz7Z1JlFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 800;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLDD4Z11lFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0900-097F, U+1CD0-1CF4, U+1CF7-1CF9, U+200C-200D, U+20A8, U+20B9, U+20F0, U+25CC, U+A830-A839, U+A8E0-A8FF, U+11B00-11B0A;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 800;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLDD4Z1JlFd2JQEl8qw.woff2) format('woff2');
unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
font-family: 'Poppins';
font-style: normal;
font-weight: 800;
font-display: swap;
src: url(/assets/fonts/poppins_v24_pxiByp8kv8JHgFVrLDD4Z1xlFd2JQEk.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
:root{
--s-bg:#f6f6fb;
--s-surface:#ffffff;
--s-ink:#12162f;
--s-ink-2:#373d60;
--s-muted:#6a7091;
--s-faint:#9aa0bb;
--s-line:#e6e7f1;
--s-line-2:#d6d9e7;
--s-primary:#4f46e5;
--s-primary-ink:#3730a3;
--s-violet:#7c3aed;
--s-saffron:#ff7a1a;
--s-saffron-ink:#c2410c;
--s-green:#16a34a;
--s-r:20px;
--s-r-sm:14px;
--s-sh-1:0 1px 2px rgba(18,22,47,.06);
--s-sh-2:0 1px 2px rgba(18,22,47,.05),0 14px 34px -14px rgba(18,22,47,.22);
--s-sh-3:0 30px 60px -24px rgba(18,22,47,.35);
--s-font:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Devanagari",sans-serif;
--k:var(--s-primary);--k-ink:var(--s-primary-ink);--k-soft:#eef0fe;--k-grad:linear-gradient(135deg,#818cf8,#4f46e5);
}
.c9 {--k:#10b981;--k-ink:#047857;--k-soft:#e3f8ef;--k-grad:linear-gradient(135deg,#34d399,#059669)}
.c10{--k:#0ea5e9;--k-ink:#0369a1;--k-soft:#e2f4fd;--k-grad:linear-gradient(135deg,#38bdf8,#0369a1)}
.c11{--k:#7c3aed;--k-ink:#5b21b6;--k-soft:#efe8fe;--k-grad:linear-gradient(135deg,#a78bfa,#6d28d9)}
.c12{--k:#f43f5e;--k-ink:#be123c;--k-soft:#feeaee;--k-grad:linear-gradient(135deg,#fb7185,#e11d48)}
.sub-science  {--k:#0d9488;--k-ink:#0f766e;--k-soft:#ddf6f3;--k-grad:linear-gradient(135deg,#2dd4bf,#0f766e)}
.sub-physics  {--k:#4f46e5;--k-ink:#3730a3;--k-soft:#eceefe;--k-grad:linear-gradient(135deg,#818cf8,#4338ca)}
.sub-chemistry{--k:#f97316;--k-ink:#c2410c;--k-soft:#fff0e5;--k-grad:linear-gradient(135deg,#fdba74,#ea580c)}
.sub-biology  {--k:#16a34a;--k-ink:#15803d;--k-soft:#e4f7ea;--k-grad:linear-gradient(135deg,#4ade80,#15803d)}
.sub-maths    {--k:#db2777;--k-ink:#be185d;--k-soft:#fde8f2;--k-grad:linear-gradient(135deg,#f472b6,#be185d)}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
margin:0;font-family:var(--s-font);font-size:16px;line-height:1.6;color:var(--s-ink);
background:var(--s-bg);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
:focus-visible{outline:3px solid #a5b4fc;outline-offset:2px;border-radius:6px}
.wrap{--gut:20px;width:min(1180px,100% - 2 * var(--gut));margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:#fff;padding:8px 14px;border-radius:10px}
.skip:focus{left:12px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
html[lang="hi"] body{line-height:1.7}
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);-webkit-backdrop-filter:saturate(1.5) blur(12px);backdrop-filter:saturate(1.5) blur(12px);border-bottom:1px solid var(--s-line)}
.hdr-in{display:flex;align-items:center;gap:18px;height:66px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:21px;letter-spacing:-.015em;color:var(--s-ink);text-decoration:none;flex:0 0 auto}
.logo svg{width:36px;height:36px;flex:0 0 auto}
.logo b{color:var(--s-saffron);font-weight:700}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{position:relative;padding:8px 14px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--s-ink-2);text-decoration:none;white-space:nowrap}
.nav a:hover{background:var(--s-bg);color:var(--s-ink)}
.nav a[aria-current="page"]{background:var(--k-soft);color:var(--k-ink);font-weight:600}
.lang{display:inline-flex;flex:0 0 auto;padding:3px;border-radius:999px;background:var(--s-bg);border:1px solid var(--s-line)}
.lang a{padding:6px 12px;border-radius:999px;font-size:13.5px;font-weight:600;color:var(--s-muted);text-decoration:none;line-height:1.4}
.lang a[aria-current="true"]{background:#fff;color:var(--s-primary);box-shadow:var(--s-sh-1)}
.chipbar{display:none}
@media (max-width:880px){
.hdr{position:relative}
.nav{display:none}
.lang{margin-left:auto}
.chipbar{display:flex;gap:8px;overflow-x:auto;padding:0 16px 10px;scrollbar-width:none}
.chipbar::-webkit-scrollbar{display:none}
.chipbar a{flex:0 0 auto;padding:7px 14px;border-radius:999px;font-size:13.5px;font-weight:600;text-decoration:none;color:var(--k-ink);background:var(--k-soft);border:1px solid transparent}
.chipbar a[aria-current="page"]{background:var(--k);color:#fff}
}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 20px;border-radius:var(--s-r-sm);font:600 15.5px/1.2 var(--s-font);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;white-space:nowrap}
.btn svg{width:20px;height:20px;flex:0 0 auto}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--s-primary);color:#fff;box-shadow:0 10px 22px -10px rgba(79,70,229,.7)}
.btn-primary:hover{background:#4338ca}
.btn-ghost{background:#fff;color:var(--s-ink);border-color:var(--s-line-2)}
.btn-ghost:hover{border-color:var(--s-primary);color:var(--s-primary)}
.btn-wa{background:#fff;color:#15803d;border-color:#b7ebc9}
.btn-wa:hover{background:#f0fdf4}
.btn-soon{background:#f3f4f9;color:var(--s-faint);border-color:var(--s-line);cursor:default}
.btn-soon:hover{transform:none}
.btn small{font-weight:500;font-size:12.5px;opacity:.8}
.tag{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.4;background:var(--s-bg);color:var(--s-ink-2);white-space:nowrap}
.tag svg{width:14px;height:14px}
.tag-ok{background:#e9f9ef;color:#15803d}
.tag-soon{background:#f1f2f7;color:#8d93ad}
.tag-k{background:var(--k-soft);color:var(--k-ink)}
.hero{position:relative;overflow:hidden;padding:64px 0 56px;background:
radial-gradient(600px 380px at 8% 10%,rgba(124,58,237,.13),transparent 70%),
radial-gradient(520px 360px at 92% 18%,rgba(255,122,26,.14),transparent 70%),
radial-gradient(700px 420px at 60% 110%,rgba(79,70,229,.12),transparent 70%),
#fbfbff}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(55,61,96,.14) 1px,transparent 1.2px);background-size:22px 22px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);mask-image:linear-gradient(180deg,#000,transparent 85%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 8px;border-radius:999px;background:#fff;border:1px solid var(--s-line);box-shadow:var(--s-sh-1);font-size:13.5px;font-weight:600;color:var(--s-ink-2)}
.eyebrow i{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,var(--s-primary),var(--s-violet));color:#fff;font-style:normal}
.eyebrow i svg{width:14px;height:14px}
.hero h1{margin:18px 0 16px;font-size:clamp(36px,5.2vw,60px);line-height:1.06;font-weight:800;letter-spacing:-.025em}
html[lang="hi"] .hero h1{line-height:1.25;letter-spacing:-.01em}
.grad{background:linear-gradient(92deg,var(--s-primary),var(--s-violet) 55%,var(--s-saffron));-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.lead{margin:0;max-width:33em;font-size:18px;line-height:1.65;color:var(--s-ink-2)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 18px;margin:26px 0 0;padding:0;list-style:none;font-size:14px;font-weight:500;color:var(--s-ink-2)}
.hero-points li{display:inline-flex;align-items:center;gap:7px}
.hero-points svg{width:18px;height:18px;color:var(--s-green)}
.hero-stack{position:relative;height:470px}
.hero-stack .pg{position:absolute;width:58%;border-radius:12px;background:#fff;box-shadow:var(--s-sh-3),0 0 0 1px rgba(18,22,47,.06)}
.hero-stack .pg img{display:block;width:100%;border-radius:12px}
.hero-stack .p1{left:2%;top:46px;transform:rotate(-7deg)}
.hero-stack .p2{left:22%;top:0;transform:rotate(1.5deg);z-index:2}
.hero-stack .p3{right:0;top:70px;transform:rotate(8deg);z-index:1}
.float{position:absolute;z-index:4;display:inline-flex;align-items:center;gap:9px;padding:10px 14px;border-radius:14px;background:#fff;box-shadow:var(--s-sh-2);font-size:14px;font-weight:600;white-space:nowrap}
.float i{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:10px;font-style:normal;color:#fff}
.float i svg{width:17px;height:17px}
.float.f1{left:-2%;bottom:70px}.float.f1 i{background:linear-gradient(135deg,#fb923c,#ea580c)}
.float.f2{right:2%;bottom:24px}.float.f2 i{background:linear-gradient(135deg,#34d399,#059669)}
.float.f3{right:6%;top:-8px}.float.f3 i{background:linear-gradient(135deg,#818cf8,#4f46e5)}
.sec{padding:64px 0}
.sec.alt{background:#fff;border-block:1px solid var(--s-line)}
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.sec-h h2{margin:0;font-size:clamp(25px,3.2vw,36px);line-height:1.15;font-weight:700;letter-spacing:-.02em}
.sec-h p{margin:8px 0 0;color:var(--s-muted)}
.kick{display:inline-block;margin-bottom:8px;font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--s-saffron-ink)}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.tile{position:relative;isolation:isolate;display:flex;flex-direction:column;min-height:250px;padding:22px 22px 18px;border-radius:24px;background:#fff;border:1px solid var(--s-line);color:var(--s-ink);text-decoration:none;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.tile::before{content:"";position:absolute;z-index:-1;right:-56px;top:-56px;width:190px;height:190px;border-radius:50%;background:var(--k-soft);transition:transform .25s ease}
.tile:hover{transform:translateY(-5px);box-shadow:var(--s-sh-2);border-color:color-mix(in srgb,var(--k) 45%,var(--s-line))}
.tile:hover::before{transform:scale(1.12)}
.tile .num{font-size:82px;line-height:.95;font-weight:800;letter-spacing:-.04em;background:var(--k-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.tile .ttl{margin-top:12px;font-size:20px;font-weight:700}
.tile .subs{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tile .foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:18px;font-size:13.5px;font-weight:500;color:var(--s-muted)}
.tile .foot strong{color:var(--k-ink);font-weight:600}
.go{display:inline-grid;place-items:center;flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:var(--k-soft);color:var(--k-ink);transition:background .18s ease,color .18s ease}
.go svg{width:19px;height:19px}
.tile:hover .go{background:var(--k);color:#fff}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:18px}
.chcard{display:grid;grid-template-columns:118px minmax(0,1fr);gap:18px;align-items:center;padding:16px;border-radius:22px;background:#fff;border:1px solid var(--s-line);text-decoration:none;color:inherit;transition:transform .18s ease,box-shadow .18s ease}
.chcard:hover{transform:translateY(-3px);box-shadow:var(--s-sh-2)}
.chcard img{display:block;width:118px;aspect-ratio:210/297;object-fit:cover;object-position:top;border-radius:10px;box-shadow:0 10px 24px -12px rgba(18,22,47,.45),0 0 0 1px rgba(18,22,47,.06)}
.chcard .meta{display:flex;flex-wrap:wrap;gap:6px}
.chcard h3{margin:10px 0 6px;font-size:18px;line-height:1.3;font-weight:700}
.chcard p{margin:0;font-size:13.5px;color:var(--s-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.chcard .acts{display:flex;align-items:center;gap:14px;margin-top:12px;font-size:14px;font-weight:600;color:var(--s-primary)}
.chcard .acts span{display:inline-flex;align-items:center;gap:6px}
.chcard .acts svg{width:17px;height:17px}
.feats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.feat{position:relative;padding:24px 22px;border-radius:22px;background:#fff;border:1px solid var(--s-line)}
.feat .ic{display:grid;place-items:center;width:50px;height:50px;margin-bottom:16px;border-radius:16px;background:var(--k-grad);color:#fff;box-shadow:0 10px 20px -10px var(--k)}
.feat .ic svg{width:24px;height:24px}
.feat h3{margin:0 0 6px;font-size:17px;line-height:1.35;font-weight:700}
.feat p{margin:0;font-size:14.5px;color:var(--s-muted)}
.feat .tag{position:absolute;top:22px;right:20px}
.how{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;counter-reset:how}
.how li{list-style:none;position:relative;padding:24px 22px 22px 80px;border-radius:22px;background:#fff;border:1.5px dashed var(--s-line-2);counter-increment:how}
.how li::before{content:counter(how);position:absolute;left:22px;top:22px;display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--s-primary),var(--s-violet));color:#fff;font-weight:700;font-size:18px}
.how h3{margin:2px 0 4px;font-size:16.5px;font-weight:700}
.how p{margin:0;font-size:14px;color:var(--s-muted)}
.how-list{margin:0;padding:0}
.sec.sec-tight{padding-top:30px}
.notice-wrap{margin-top:22px}
.notice{display:flex;align-items:flex-start;gap:12px;margin:0;padding:14px 18px;border-radius:16px;background:#fff7ed;border:1px solid #fed7aa;color:#7c2d12;font-size:14.5px}
.notice svg{width:22px;height:22px;flex:0 0 auto;margin-top:1px;color:#ea580c}
.notice a{color:#c2410c;font-weight:600}
.ph{position:relative;padding:28px 0 30px;background:linear-gradient(180deg,var(--k-soft),rgba(255,255,255,0) 92%)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0;padding:0;list-style:none;font-size:13.5px;color:var(--s-muted)}
.crumbs a{color:var(--s-ink-2);text-decoration:none}
.crumbs a:hover{color:var(--s-primary)}
.crumbs li+li::before{content:"›";margin-right:6px;color:var(--s-faint)}
.ph-row{display:flex;align-items:center;gap:18px;margin-top:18px}
.ph-badge{display:grid;place-items:center;flex:0 0 auto;width:72px;height:72px;border-radius:22px;background:var(--k-grad);color:#fff;font-size:34px;font-weight:800;box-shadow:0 14px 28px -14px var(--k)}
.ph-badge svg{width:36px;height:36px}
.ph h1{margin:0;font-size:clamp(28px,4.2vw,44px);line-height:1.12;font-weight:800;letter-spacing:-.02em}
html[lang="hi"] .ph h1{line-height:1.3}
.ph .sub{margin:6px 0 0;color:var(--s-ink-2);font-size:15.5px}
.subjects{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px}
.subj{display:flex;flex-direction:column;gap:16px;padding:22px;border-radius:24px;background:#fff;border:1px solid var(--s-line);color:inherit;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
a.subj:hover{transform:translateY(-4px);box-shadow:var(--s-sh-2);border-color:color-mix(in srgb,var(--k) 40%,var(--s-line))}
.subj-top{display:flex;align-items:center;gap:14px}
.subj .ic{display:grid;place-items:center;flex:0 0 auto;width:58px;height:58px;border-radius:18px;background:var(--k-grad);color:#fff;box-shadow:0 12px 24px -12px var(--k)}
.subj .ic svg{width:28px;height:28px}
.subj h2{margin:0;font-size:21px;line-height:1.25;font-weight:700}
.subj .count{margin:2px 0 0;font-size:13.5px;color:var(--s-muted)}
.bar{height:8px;border-radius:99px;background:#eef0f6;overflow:hidden}
.bar i{display:block;height:100%;min-width:8px;border-radius:99px;background:var(--k-grad)}
.subj-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;font-weight:600;color:var(--k-ink)}
.subj.is-soon .subj-foot{color:var(--s-faint)}
.chlist{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.chrow{display:flex;align-items:center;gap:16px;padding:14px 16px;border-radius:18px;background:#fff;border:1px solid var(--s-line);color:inherit;text-decoration:none;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
a.chrow:hover{transform:translateX(3px);box-shadow:var(--s-sh-2);border-color:color-mix(in srgb,var(--k) 45%,var(--s-line))}
.chrow .no{display:grid;place-items:center;flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--k-grad);color:#fff;font-weight:700;font-size:16px}
.chrow .t{flex:1;min-width:0}
.chrow .t strong{display:block;font-size:16px;line-height:1.35;font-weight:600}
.chrow .t span{display:block;margin-top:2px;font-size:13px;color:var(--s-muted)}
.chrow .tags{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px}
.chrow.is-soon{background:rgba(255,255,255,.55);border-style:dashed}
.chrow.is-soon .no{background:#eceef5;color:#9aa0bb}
.chrow.is-soon .t strong{color:var(--s-muted);font-weight:500}
.empty{display:grid;justify-items:center;gap:10px;padding:44px 24px;text-align:center;border-radius:24px;border:1.5px dashed var(--s-line-2);background:#fff}
.empty .ic{display:grid;place-items:center;width:64px;height:64px;border-radius:20px;background:var(--k-soft);color:var(--k-ink)}
.empty .ic svg{width:30px;height:30px}
.empty h2{margin:4px 0 0;font-size:21px}
.empty p{margin:0;max-width:30em;color:var(--s-muted)}
.ch-head{padding:22px 0 10px;background:linear-gradient(180deg,var(--k-soft),rgba(255,255,255,0))}
.actbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px}
.ch-head .wrap,.wrap.ch-layout{width:min(1074px,100% - 2 * var(--gut))}
.ch-layout{display:grid;grid-template-columns:250px minmax(0,794px);align-items:start;gap:30px;padding:18px 0 48px}
.otp{position:sticky;top:86px;max-height:calc(100vh - 104px);overflow:auto;padding:16px 12px 16px 16px;border-radius:20px;background:#fff;border:1px solid var(--s-line);scrollbar-width:thin}
.otp-h{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--s-muted)}
.otp-h svg{width:16px;height:16px}
.otp a{display:flex;gap:8px;padding:6px 8px;border-radius:9px;font-size:13px;line-height:1.35;color:var(--s-ink-2);text-decoration:none}
.otp a b{flex:0 0 auto;min-width:28px;font-weight:600;color:var(--k-ink)}
.otp a.l1{margin-top:8px;font-weight:600;color:var(--s-ink)}
.otp a.l1 b{min-width:20px}
.otp a:hover{background:var(--s-bg)}
.otp a.on{background:var(--k-soft);color:var(--k-ink)}
.otp-m{display:none;margin:0 0 14px;border-radius:16px;background:#fff;border:1px solid var(--s-line)}
.otp-m summary{display:flex;align-items:center;gap:10px;padding:13px 16px;font-weight:600;font-size:15px;cursor:pointer;list-style:none}
.otp-m summary::-webkit-details-marker{display:none}
.otp-m summary svg{width:18px;height:18px;color:var(--k-ink)}
.otp-m summary::after{content:"＋";margin-left:auto;color:var(--s-muted)}
.otp-m[open] summary::after{content:"－"}
.otp-m nav{padding:0 10px 12px}
.otp-m a{display:flex;gap:8px;padding:7px 8px;border-radius:9px;font-size:14px;color:var(--s-ink-2);text-decoration:none}
.otp-m a b{min-width:30px;color:var(--k-ink);font-weight:600}
.notes-col{min-width:0;width:100%;max-width:794px;justify-self:center}
.notes-col .sheet{margin:0 0 28px}
.notes-col .sheet [id]{scroll-margin-top:92px}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pn a,.pn div{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--s-line);color:inherit;text-decoration:none}
.pn a:hover{border-color:var(--k);box-shadow:var(--s-sh-2)}
.pn .lbl{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--s-muted)}
.pn .lbl svg{width:15px;height:15px}
.pn strong{font-size:15.5px;line-height:1.35}
.pn .nx{text-align:right;align-items:flex-end}
.ch-layout.pdf-only{grid-template-columns:minmax(0,794px);justify-content:center}
.pdfprev{display:grid;gap:16px;margin:0 0 28px}
.pdfprev-h{margin:0;font-size:26px;line-height:1.25}
.pdfprev-sum{margin:0;color:var(--s-ink-2)}
.pdfprev-p{margin:0;font-size:14px;color:var(--s-muted)}
.pdfprev img{display:block;width:100%;height:auto;border-radius:14px;border:1px solid var(--s-line);background:#fff;box-shadow:var(--s-sh-2)}
.pdfprev-btn{justify-self:center;margin-top:6px}
@media (max-width:880px){.notes-col .pdfprev{padding-inline:var(--gut)}}
article.sheet .tbl .span-copy{display:none}
article.sheet :is(.split,.grid2,.grid3) > *{min-width:0}
@media (max-width:640px){
article.sheet .tbl,article.sheet .tbl.dims{min-width:0}
article.sheet .tbl-wrap:has(> .tbl.tcards){overflow:visible}
article.sheet .tbl.tcards,article.sheet .tbl.tcards tbody,article.sheet .tbl.tcards tr{display:block;width:100%}
article.sheet .tbl.tcards{background:none}
article.sheet .tbl.tcards thead{display:none}
article.sheet .tbl.tcards tr{margin:0 0 10px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--paper)}
article.sheet .tbl.tcards td,article.sheet .tbl.tcards .span-copy{display:block;padding:6px 12px;border-bottom:1px solid var(--line);background:none}
article.sheet .tbl.tcards td:last-child{border-bottom:0}
article.sheet .tbl.tcards td:first-child{background:#f4f6fb}
article.sheet .tbl.tcards td::before{content:attr(data-label);margin-right:8px;font-size:10.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
article.sheet .tbl.tcards td[data-label='']::before{display:none}
article.sheet .formula > .f-tab{white-space:normal;height:auto;max-width:calc(100% - 8px);line-height:1.25;text-align:center;letter-spacing:.08em}
}
@media (max-width:440px){
article.sheet .base-units{grid-template-columns:repeat(3,minmax(0,1fr))}
article.sheet .bu .q{overflow-wrap:anywhere}
}
.pn div{border-style:dashed;color:var(--s-muted)}
.mobar{display:none}
@media (max-width:1180px){
.ch-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:8px}
.otp{display:none}
.otp-m{display:block}
}
@media (max-width:880px){
.actbar .btn-hide-m{display:none}
.mobar{position:fixed;left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));z-index:60;display:flex;gap:10px;padding:8px;border-radius:18px;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 12px 34px -10px rgba(18,22,47,.35),0 0 0 1px var(--s-line)}
.mobar .btn{flex:1;min-height:46px;padding:0 12px;font-size:14.5px}
body.has-mobar{padding-bottom:84px}
.notes-col .sheet [id]{scroll-margin-top:12px}
.notes-col{justify-self:stretch;width:auto;max-width:none;margin-inline:calc(-1 * var(--gut))}
.notes-col .sheet{margin-bottom:18px}
}
.prose{max-width:760px;margin:0 auto;padding:34px 0 64px}
.prose h1{margin:0 0 6px;font-size:clamp(30px,4vw,42px);line-height:1.15;font-weight:800;letter-spacing:-.02em}
.prose .upd{margin:0 0 26px;color:var(--s-muted);font-size:14px}
.prose h2{margin:30px 0 8px;font-size:21px;font-weight:700}
.prose p,.prose li{color:var(--s-ink-2)}
.prose a{color:var(--s-primary);font-weight:500}
.prose .boxed{padding:20px 22px;border-radius:18px;background:#fff;border:1px solid var(--s-line)}
.ftr{position:relative;margin-top:24px;padding:48px 0 30px;background:#10142f;color:#b9bdd6;font-size:14.5px}
.ftr::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--s-primary),var(--s-violet),var(--s-saffron))}
.ftr-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:28px}
.ftr .logo{color:#fff}
.ftr p{margin:12px 0 0;max-width:24em}
.ftr h2{margin:6px 0 12px;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff}
.ftr ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.ftr a{color:#d9dcee;text-decoration:none}
.ftr a:hover{color:#fff;text-decoration:underline}
.ftr-bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8c91b3}
@media (max-width:1060px){
.tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
.feats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
.hero{padding:40px 0 44px}
.hero-grid{grid-template-columns:1fr;gap:34px}
.hero-stack{height:360px;max-width:520px;margin:0 auto;width:100%}
.how{grid-template-columns:1fr}
.ftr-grid{grid-template-columns:1fr 1fr}
.ftr-grid > div:first-child{grid-column:1/-1}
}
@media (max-width:640px){
.wrap{--gut:16px}
.hdr-in{height:60px;gap:12px}
.logo{font-size:19px}
.logo svg{width:32px;height:32px}
.lead{font-size:16.5px}
.cta-row .btn{flex:1 1 auto}
.hero-stack{height:290px}
.float{font-size:12.5px;padding:8px 11px}
.float i{width:26px;height:26px}
.sec{padding:46px 0}
.tiles{gap:12px}
.tile{min-height:190px;padding:16px 16px 14px;border-radius:20px}
.tile .num{font-size:60px}
.tile .ttl{font-size:17px}
.tile .subs .tag{font-size:11px;padding:3px 8px}
.tile .foot{font-size:12px}
.go{width:32px;height:32px;border-radius:10px}
.feats{grid-template-columns:1fr}
.cards{grid-template-columns:1fr}
.chcard{grid-template-columns:96px minmax(0,1fr);gap:14px}
.chcard img{width:96px}
.ph-badge{width:58px;height:58px;font-size:27px;border-radius:18px}
.chrow{gap:12px;padding:12px}
.chrow .no{width:40px;height:40px;font-size:15px}
.chrow .tags .tag:not(:first-child){display:none}
.pn{grid-template-columns:1fr}
.ftr-grid{grid-template-columns:1fr}
}
@media print{
.hdr,.ftr,.ch-head,.otp,.otp-m,.pn,.mobar,.skip{display:none!important}
body{background:#fff}
.ch-layout{display:block;padding:0}
}