/* Layout idea: a night-sky observatory. Each section pairs a physics idea (how) with an Upanishadic question (why), joined by a gold thread. Single dark theme by choice. */
:root{
  --sky:#0b1027;
  --sky-2:#111839;
  --panel:#141c42;
  --star:#f4f1ea;
  --mist:#9aa3c7;
  --gold:#f2a93b;
  --gold-soft:#f7c873;
  --violet:#8f88c9;
  --line:rgba(244,241,234,.10);
  --display:"Mukta","Segoe UI",system-ui,sans-serif;
  --serif:"Tiro Devanagari Hindi","Noto Serif Devanagari",Georgia,serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--sky)}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--sky);color:var(--star);font:400 18px/1.65 var(--display);position:relative;overflow-x:hidden}
#stars{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
header,main,footer{position:relative;z-index:1}
a{color:var(--gold-soft)}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:1.15;text-wrap:balance;margin:0}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
.serif{font-family:var(--serif)}
.eyebrow{font-size:.82rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--gold)}

/* nav */
header.top{position:sticky;top:0;z-index:20;background:rgba(11,16,39,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{font:800 1.2rem var(--display);color:var(--star);text-decoration:none}
.logo span{color:var(--gold)}
.nav ul{display:flex;gap:24px;list-style:none;margin:0;padding:0}
.nav ul a{color:var(--star);text-decoration:none;font-weight:500;opacity:.85}
.nav ul a:hover{opacity:1;color:var(--gold-soft)}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font:700 1rem var(--display);padding:12px 22px;border-radius:999px;text-decoration:none}
.btn-gold{background:var(--gold);color:#1b1200}
.btn-gold:hover{background:var(--gold-soft)}
.btn-line{background:transparent;color:var(--star);border:1.5px solid rgba(244,241,234,.28)}
.btn-line:hover{border-color:var(--gold)}
@media (max-width:820px){.nav ul{display:none}}

/* hero */
.hero{padding:28px 0 40px}
.banner{display:block;width:100%;max-width:100%;border-radius:18px;border:1px solid var(--line);box-shadow:0 30px 80px -40px rgba(242,169,59,.35)}
.hero-text{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:end;margin-top:32px}
.hero-text h1{font-size:clamp(2rem,4.6vw,3.3rem)}
.hero-text h1 em{font-style:normal;color:var(--gold)}
.hero-text p{color:var(--mist);margin:12px 0 0;max-width:60ch}
.cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
@media (max-width:820px){.hero-text{grid-template-columns:1fr}.cta{justify-content:flex-start}}

section{padding:72px 0}
.sec-head{margin-bottom:32px;max-width:720px}
.sec-head h2{font-size:clamp(1.8rem,3.8vw,2.6rem);margin-top:8px}
.sec-head p{color:var(--mist);margin:10px 0 0}

/* physics concepts */
.concepts{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.concept{background:linear-gradient(180deg,var(--panel),var(--sky-2));border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:10px}
.formula{font:400 1.45rem/1.2 Georgia,"Times New Roman",serif;color:var(--violet);letter-spacing:.02em}
.concept h3{font-size:1.18rem}
.concept p{margin:0;color:var(--mist);font-size:.98rem}
.concept .who{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:.88rem;color:var(--gold-soft)}

/* bridge */
.bridge{background:rgba(20,28,66,.55);border-block:1px solid var(--line)}
.pairs{display:grid;gap:14px}
.pair-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.ptab{background:transparent;border:1.5px solid rgba(244,241,234,.2);color:var(--star);padding:8px 16px;border-radius:999px;font:600 .95rem var(--display);cursor:pointer}
.ptab[aria-selected="true"]{background:var(--gold);border-color:var(--gold);color:#1b1200}
.pair{display:grid;grid-template-columns:1fr 64px 1fr;align-items:stretch;gap:0}
.side{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}
.side .lbl{font-size:.8rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase}
.side.phy .lbl{color:var(--violet)}
.side.adh .lbl{color:var(--gold)}
.side h3{font-size:1.4rem;margin:8px 0 10px}
.side .big{font-family:var(--serif);font-size:1.7rem;color:var(--gold-soft);line-height:1.3;margin:6px 0 4px}
.side .src{font-size:.86rem;color:var(--mist)}
.side p{margin:8px 0 0;color:var(--mist)}
.thread{display:flex;align-items:center;justify-content:center;position:relative}
.thread::before{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:linear-gradient(90deg,var(--violet),var(--gold))}
.thread span{position:relative;width:44px;height:44px;border-radius:50%;background:var(--sky);border:2px solid var(--gold);display:grid;place-items:center;font-family:var(--serif);color:var(--gold);font-size:1.3rem}
.honest{margin-top:22px;padding:16px 18px;border-left:4px solid var(--gold);background:rgba(242,169,59,.07);border-radius:0 12px 12px 0;color:var(--star);font-size:.98rem}
@media (max-width:820px){.pair{grid-template-columns:1fr;grid-template-rows:auto 48px auto}.thread::before{left:50%;right:auto;top:0;bottom:0;width:2px;height:auto;background:linear-gradient(180deg,var(--violet),var(--gold))}}

/* thinkers */
.thinkers{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.thinker{border:1px solid var(--line);border-radius:16px;padding:22px;background:rgba(17,24,57,.7)}
.thinker .yr{font-variant-numeric:tabular-nums;color:var(--gold);font-weight:700;font-size:.9rem}
.thinker h3{font-size:1.15rem;margin:4px 0 8px}
.thinker p{margin:0;color:var(--mist);font-size:.97rem}

/* audiobooks */
.audio-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:32px;align-items:start}
.player{background:linear-gradient(160deg,#1a2352,#10163a);border:1px solid var(--line);border-radius:18px;padding:24px}
.player .now{font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.player h3{font-size:1.45rem;margin:8px 0 4px}
.player p{color:var(--mist);margin:0 0 16px;font-size:.97rem}
.wave{display:flex;align-items:flex-end;gap:4px;height:56px;margin:8px 0 18px}
.wave i{flex:1;background:linear-gradient(180deg,var(--gold-soft),var(--violet));border-radius:3px;opacity:.75}
.notify{display:flex;flex-wrap:wrap;gap:10px}
.eps{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ep{display:grid;grid-template-columns:44px 1fr auto;gap:14px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:rgba(20,28,66,.6);cursor:pointer;color:var(--star);text-align:left;font:inherit;width:100%}
.ep:hover,.ep[aria-pressed="true"]{border-color:var(--gold)}
.ep .n{font:800 1.2rem var(--display);color:var(--gold);font-variant-numeric:tabular-nums}
.ep strong{display:block;font-size:1.05rem}
.ep small{color:var(--mist)}
.pill{font-size:.78rem;font-weight:700;padding:3px 10px;border-radius:999px;border:1px solid rgba(242,169,59,.5);color:var(--gold-soft);white-space:nowrap}
@media (max-width:820px){.audio-grid{grid-template-columns:1fr}}

/* quiz */
.quiz-wrap{display:grid;grid-template-columns:1fr 1.3fr;gap:32px;align-items:start}
.quiz{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}
.q-top{display:flex;justify-content:space-between;align-items:center;color:var(--mist);font-size:.92rem;font-variant-numeric:tabular-nums}
.quiz h3{font-size:1.3rem;margin:14px 0 16px}
.opts{display:grid;gap:10px}
.opt{text-align:left;background:var(--sky-2);border:1.5px solid var(--line);color:var(--star);padding:12px 14px;border-radius:12px;font:500 1rem var(--display);cursor:pointer}
.opt:hover:not(:disabled){border-color:var(--gold)}
.opt.right{border-color:#4cc27e;background:rgba(76,194,126,.14)}
.opt.wrong{border-color:#ef6b5b;background:rgba(239,107,91,.12)}
.opt:disabled{cursor:default}
.explain{margin:14px 0 0;padding:12px 14px;border-left:4px solid var(--gold);background:var(--sky-2);border-radius:0 10px 10px 0;font-size:.96rem;color:var(--star)}
.actions{display:flex;justify-content:flex-end;margin-top:16px}
.dots{display:flex;gap:6px}
.dots i{width:10px;height:10px;border-radius:50%;background:rgba(244,241,234,.18)}
.dots i.ok{background:#4cc27e}.dots i.no{background:#ef6b5b}.dots i.cur{outline:2px solid var(--gold)}
@media (max-width:820px){.quiz-wrap{grid-template-columns:1fr}}

/* join */
.join{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.mantras{display:grid;gap:8px;margin-top:20px}
.mantras div{font-family:var(--serif);font-size:1.5rem;color:var(--gold-soft)}
.mantras small{display:block;font-family:var(--display);font-size:.88rem;color:var(--mist)}
form{display:grid;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}
label{font-weight:600;font-size:.95rem;display:grid;gap:6px}
input,select,textarea{font:400 1rem var(--display);padding:11px 12px;border-radius:10px;border:1.5px solid var(--line);background:var(--sky-2);color:var(--star)}
textarea{min-height:90px;resize:vertical}
.notice{display:none;padding:12px 14px;border-radius:10px;border:1px solid #4cc27e;background:rgba(76,194,126,.12)}
.notice.err{border-color:#ef6b5b;background:rgba(239,107,91,.12)}
.notice.show{display:block}
@media (max-width:820px){.join{grid-template-columns:1fr}}

/* JEE physics */
.jee-intro{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start;margin-bottom:36px}
.method{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.method div{padding:16px;border-right:1px solid var(--line);background:rgba(20,28,66,.6)}
.method div:last-child{border-right:0}
.method b{display:block;font:800 1.4rem var(--display);color:var(--gold);font-variant-numeric:tabular-nums}
.method span{font-weight:700}
.method small{display:block;color:var(--mist);font-size:.86rem;line-height:1.4;margin-top:4px}
@media (max-width:820px){.jee-intro{grid-template-columns:1fr}.method{grid-template-columns:1fr 1fr}.method div:nth-child(2){border-right:0}.method div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
.batches{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-bottom:40px}
.batch{background:linear-gradient(180deg,var(--panel),var(--sky-2));border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:10px}
.batch.featured{border-color:var(--gold)}
.batch .tagline{font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--violet)}
.batch.featured .tagline{color:var(--gold)}
.batch h3{font-size:1.3rem}
.batch ul{margin:0;padding-left:18px;color:var(--mist);font-size:.96rem}
.batch .foot{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.chap-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px}
.chap-head h3{font-size:1.4rem}
.chapters{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px;counter-reset:ch}
.chapters li{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:rgba(17,24,57,.7)}
.chapters li::before{counter-increment:ch;content:counter(ch,decimal-leading-zero);font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums}
.chapters strong{display:block;font-weight:600;line-height:1.35}
.chapters small{color:var(--violet);font-size:.82rem}
.demo{margin-top:36px;display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;padding:22px;border:1px solid var(--gold);border-radius:16px;background:rgba(242,169,59,.07)}
.demo .play{width:64px;height:64px;border-radius:50%;background:var(--gold);display:grid;place-items:center}
.demo .play::after{content:"";border-left:20px solid #1b1200;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:5px}
.demo h3{font-size:1.25rem}
.demo p{margin:4px 0 0;color:var(--mist)}
@media (max-width:820px){.demo{grid-template-columns:1fr}}

footer{border-top:1px solid var(--line);padding:28px 0;color:var(--mist);font-size:.92rem}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
/* install app */
.nav-actions{display:flex;align-items:center;gap:10px}
#installBtn[hidden]{display:none}
.install-tip{position:fixed;left:16px;right:16px;bottom:16px;z-index:30;max-width:420px;margin:0 auto;background:var(--panel);border:1px solid var(--gold);border-radius:16px;padding:16px 18px;box-shadow:0 20px 50px -20px rgba(0,0,0,.6)}
.install-tip[hidden]{display:none}
.install-tip p{margin:4px 0 12px;color:var(--mist);font-size:.96rem}
.install-tip .row{display:flex;justify-content:flex-end;gap:8px}
@media (max-width:420px){.nav .btn{padding:10px 14px;font-size:.92rem}}

/* ===== Shared additions: navigation, footer, inner pages ===== */
.nav ul a[aria-current="page"]{color:var(--gold-soft);opacity:1}
.menu-toggle{display:none;background:transparent;border:1.5px solid rgba(244,241,234,.28);color:var(--star);border-radius:999px;padding:9px 16px;font:700 .95rem var(--display);cursor:pointer}
@media (max-width:1280px){
  .menu-toggle{display:inline-flex}
  .nav{position:relative}
  .nav ul{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:rgba(11,16,39,.97);border-bottom:1px solid var(--line);padding:8px 20px 16px}
  .nav ul.open{display:flex}
  .nav ul li a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
}
@media (max-width:420px){.nav-actions .btn-gold{display:none}}

footer.site{border-top:1px solid var(--line);padding:44px 0 28px;color:var(--mist);font-size:.95rem}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;margin-bottom:28px}
footer.site h4{margin:0 0 10px;color:var(--star);font:700 .82rem var(--display);letter-spacing:.2em;text-transform:uppercase}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
footer.site ul a{color:var(--mist);text-decoration:none}
footer.site ul a:hover{color:var(--gold-soft)}
footer.site .brand{font:800 1.25rem var(--display);color:var(--star)}
footer.site .brand span{color:var(--gold)}
footer.site .base{border-top:1px solid var(--line);padding-top:18px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.88rem}
@media (max-width:720px){footer.site .cols{grid-template-columns:1fr 1fr}footer.site .cols>div:first-child{grid-column:1/-1}}

.page-hero{padding:56px 0 24px}
.page-hero h1{font-size:clamp(2.1rem,5vw,3.4rem);margin-top:10px}
.page-hero p{color:var(--mist);max-width:62ch;margin:12px 0 0;font-size:1.08rem}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;border:1.5px solid rgba(244,241,234,.2);color:var(--star);text-decoration:none;font-weight:600;font-size:.95rem}
.chip:hover{border-color:var(--gold);color:var(--gold-soft)}
.sec-sm{padding:44px 0}
.h2{font-size:clamp(1.7rem,3.6vw,2.4rem)}
.lede{color:var(--mist);margin:8px 0 0;max-width:62ch}
.muted{color:var(--mist)}

.tag{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:3px 10px;border-radius:999px;border:1px solid currentColor}
.tag.space{color:#9fb4ff}.tag.india{color:#f7c873}.tag.physics{color:#b7a9ff}.tag.fun{color:#7fd6c2}
.badge-free{display:inline-block;font-size:.75rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:3px 10px;border-radius:999px;background:rgba(76,194,126,.16);color:#7fe0a6;border:1px solid rgba(76,194,126,.5)}
.badge-pro{display:inline-block;font-size:.75rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:3px 10px;border-radius:999px;background:rgba(242,169,59,.16);color:var(--gold-soft);border:1px solid rgba(242,169,59,.55)}

/* weekly current affairs */
.edition{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:14px;margin-bottom:22px}
.edition .date{font-variant-numeric:tabular-nums;color:var(--gold-soft);font-weight:700}
.ca-list{display:grid;gap:14px;counter-reset:ca}
.ca-item{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:20px;border:1px solid var(--line);border-radius:16px;background:rgba(20,28,66,.6)}
.ca-item::before{counter-increment:ca;content:counter(ca,decimal-leading-zero);font:800 1.6rem var(--display);color:var(--gold);font-variant-numeric:tabular-nums}
.ca-item h3{font-size:1.2rem;margin:8px 0 6px}
.ca-item p{margin:0 0 8px;color:var(--mist)}
.ca-item .why{margin:10px 0 0;padding:10px 12px;border-radius:10px;background:var(--sky-2);font-size:.95rem;color:var(--star)}
.ca-item .why b{color:var(--gold-soft)}
.ca-item .src{font-size:.88rem}
@media (max-width:600px){.ca-item{grid-template-columns:1fr}.ca-item::before{font-size:1.2rem}}
.cta-band{margin-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:20px 22px;border:1px solid var(--gold);border-radius:16px;background:rgba(242,169,59,.07)}
.cta-band p{margin:4px 0 0;color:var(--mist)}

/* videos */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.video{display:flex;flex-direction:column;gap:10px;color:var(--star);text-decoration:none;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:rgba(20,28,66,.6)}
.video:hover{border-color:var(--gold)}
.video .thumb{position:relative;aspect-ratio:16/9;background:#05081a}
.video .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.video .thumb::after{content:"";position:absolute;left:50%;top:50%;width:56px;height:56px;margin:-28px 0 0 -28px;border-radius:50%;background:rgba(242,169,59,.92)}
.video .thumb::before{content:"";position:absolute;left:50%;top:50%;z-index:1;margin:-11px 0 0 -6px;border-left:18px solid #1b1200;border-top:11px solid transparent;border-bottom:11px solid transparent}
.video .meta{padding:0 16px 16px;display:flex;flex-direction:column;gap:6px}
.video .meta strong{font-size:1.05rem;line-height:1.35}
.video .meta small{color:var(--mist)}
.empty{padding:28px;border:1.5px dashed rgba(244,241,234,.22);border-radius:16px;color:var(--mist);text-align:center}
.vfilters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}

/* notes, premium, generic cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{display:flex;flex-direction:column;gap:10px;padding:22px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,var(--panel),var(--sky-2))}
.card h3{font-size:1.22rem}
.card p{margin:0;color:var(--mist)}
.card ul{margin:0;padding-left:18px;color:var(--mist)}
.card .foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px}
.card.featured{border-color:var(--gold)}
.price{font:800 1.5rem var(--display);font-variant-numeric:tabular-nums}
.price small{font-size:.9rem;color:var(--mist);font-weight:500}

.compare{width:100%;border-collapse:collapse;font-size:.98rem}
.compare th,.compare td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.compare thead th{color:var(--gold-soft);font-size:.82rem;letter-spacing:.14em;text-transform:uppercase}
.table-box{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:rgba(20,28,66,.55)}

.faq{display:grid;gap:10px;max-width:820px}
.faq details{border:1px solid var(--line);border-radius:14px;background:rgba(20,28,66,.55);padding:14px 18px}
.faq summary{cursor:pointer;font-weight:700}
.faq p{margin:10px 0 0;color:var(--mist)}

/* blog */
.posts{display:grid;gap:18px}
.post-card{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;padding:24px;border:1px solid var(--line);border-radius:18px;background:rgba(20,28,66,.6);color:var(--star);text-decoration:none}
.post-card:hover{border-color:var(--gold)}
.post-card h3{font-size:1.4rem;margin:8px 0 8px}
.post-card p{margin:0;color:var(--mist)}
.post-card .meta{font-size:.9rem;color:var(--mist);margin-top:10px}
.post-card .go{font-weight:700;color:var(--gold-soft);white-space:nowrap}
@media (max-width:600px){.post-card{grid-template-columns:1fr}}

.article{max-width:720px;margin:0 auto;padding:48px 20px 24px}
.article .back{font-size:.95rem;text-decoration:none}
.article h1{font-size:clamp(2rem,5vw,3rem);margin:14px 0 12px}
.article .byline{color:var(--mist);font-size:.95rem;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.article h2{font-size:1.55rem;margin:36px 0 10px}
.article p,.article li{font-size:1.08rem;line-height:1.75;text-wrap:pretty}
.article p{margin:0 0 16px}
.article blockquote{margin:22px 0;padding:18px 20px;border-left:4px solid var(--gold);background:rgba(242,169,59,.07);border-radius:0 14px 14px 0}
.article blockquote .sk{font-family:var(--serif);font-size:1.35rem;color:var(--gold-soft);line-height:1.6}
.article blockquote p{margin:8px 0 0;color:var(--mist);font-size:1rem}
.article .note{padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:rgba(20,28,66,.6);color:var(--mist)}
.share{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}

/* about */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.pillar{padding:22px;border:1px solid var(--line);border-radius:16px;background:rgba(20,28,66,.6)}
.pillar b{display:block;font:800 1.8rem var(--display);color:var(--gold)}
.pillar h3{font-size:1.15rem;margin:4px 0 6px}
.pillar p{margin:0;color:var(--mist)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:32px;align-items:start}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}}
.info-list{display:grid;gap:14px;margin-top:20px}
.info-list div{padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:rgba(20,28,66,.6)}
.info-list b{display:block}
.info-list span{color:var(--mist);font-size:.96rem}

/* Om ambience button (all pages) */
.om-btn{position:fixed;left:16px;bottom:16px;z-index:25;display:inline-flex;align-items:center;gap:10px;padding:8px 16px 8px 8px;border-radius:999px;border:1px solid rgba(242,169,59,.55);background:rgba(11,16,39,.88);backdrop-filter:blur(8px);color:var(--star);font:600 .92rem var(--display);cursor:pointer;box-shadow:0 12px 30px -16px rgba(0,0,0,.7)}
.om-btn:hover{border-color:var(--gold)}
.om-glyph{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--sky-2);color:var(--gold-soft);font-family:var(--serif);font-size:1.25rem;line-height:1}
.om-btn[aria-pressed="true"] .om-glyph{background:var(--gold);color:#1b1200;animation:ombreathe 6s ease-in-out infinite}
@keyframes ombreathe{0%,100%{box-shadow:0 0 0 0 rgba(242,169,59,.45)}50%{box-shadow:0 0 0 10px rgba(242,169,59,0)}}
@media (max-width:520px){.om-label{display:none}.om-btn{padding:6px}}
body{padding-bottom:0}
footer.site{padding-bottom:84px}

/* spiritual page */
.player{position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#05081a}
.player img,.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0;object-fit:cover}
.player button{position:absolute;inset:0;width:100%;height:100%;border:0;padding:0;background:transparent;cursor:pointer}
.player button::after{content:"";position:absolute;left:50%;top:50%;width:76px;height:76px;margin:-38px 0 0 -38px;border-radius:50%;background:rgba(242,169,59,.94)}
.player button::before{content:"";position:absolute;left:50%;top:50%;z-index:1;margin:-15px 0 0 -8px;border-left:26px solid #1b1200;border-top:15px solid transparent;border-bottom:15px solid transparent}
.om-feature{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
@media (max-width:900px){.om-feature{grid-template-columns:1fr}}
.aum{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:22px}
.aum div{padding:16px;border:1px solid var(--line);border-radius:14px;background:rgba(20,28,66,.6);text-align:center}
.aum b{display:block;font-family:var(--serif);font-size:2rem;color:var(--gold-soft);line-height:1.2}
.aum span{display:block;font-weight:700;margin-top:4px}
.aum small{display:block;color:var(--mist);font-size:.88rem;margin-top:2px}
@media (max-width:640px){.aum{grid-template-columns:repeat(2,minmax(0,1fr))}}
.mantra-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.mantra{padding:22px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,var(--panel),var(--sky-2))}
.mantra .sk{font-family:var(--serif);font-size:1.5rem;color:var(--gold-soft);line-height:1.4}
.mantra p{margin:8px 0 0;color:var(--mist)}
.mantra small{display:block;margin-top:8px;color:var(--violet);font-weight:600}

/* ===== Home layout v2 ===== */
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hero2{padding:44px 0 28px}
.hero2-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:center}
.hero2 h1{font-size:clamp(2.2rem,5vw,3.6rem);margin-top:10px}
.hero2 h1 em{font-style:normal;color:var(--gold)}
.hero2 .tagline{color:var(--gold-soft);font-size:1.35rem;margin:14px 0 0}
.hero2 .lede{font-size:1.08rem}
@media (max-width:900px){.hero2-grid{grid-template-columns:1fr;gap:24px}.hero2-art{order:-1}}
.paths{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:1000px){.paths{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){.paths{grid-template-columns:1fr}}
.path{display:flex;flex-direction:column;gap:6px;padding:22px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,var(--panel),var(--sky-2));color:var(--star);text-decoration:none;transition:border-color .2s,transform .2s}
.path:hover{border-color:var(--gold);transform:translateY(-2px)}
.path svg{width:34px;height:34px;fill:none;stroke:var(--gold);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:8px}
.path .k{font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--violet)}
.path strong{font:800 1.25rem var(--display)}
.path span{color:var(--mist);font-size:.96rem}
.path .go{margin-top:auto;padding-top:10px;color:var(--gold-soft);font-weight:700}

details.more{margin-top:8px;border:1px solid var(--line);border-radius:16px;background:rgba(17,24,57,.55);padding:4px 18px}
details.more>summary{cursor:pointer;list-style:none;padding:14px 0;font-weight:700;color:var(--gold-soft);display:flex;justify-content:space-between;align-items:center}
details.more>summary::-webkit-details-marker{display:none}
details.more>summary::after{content:"+";font-size:1.4rem;color:var(--gold)}
details.more[open]>summary::after{content:"−"}
details.more[open]{padding-bottom:18px}

.concepts.rail{grid-auto-flow:column;grid-template-columns:none;grid-auto-columns:minmax(260px,300px);overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;scrollbar-width:thin}
.concepts.rail>*{scroll-snap-align:start}
.rail-hint{color:var(--mist);font-size:.9rem;margin:-14px 0 16px}
.banner{height:auto}

/* Learn Physics */
.track-tabs{margin-bottom:26px}
.track-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:18px;margin-bottom:8px}
.track-stats{display:flex;flex-wrap:wrap;gap:10px}
.track-stats span{padding:8px 14px;border:1px solid var(--line);border-radius:12px;background:rgba(20,28,66,.6);color:var(--mist);font-size:.92rem}
.track-stats b{color:var(--gold-soft)}
.group-title{font-size:1.15rem;margin:26px 0 12px;color:var(--star)}
.syllabus td.num{color:var(--gold);font-weight:800;font-variant-numeric:tabular-nums;width:48px}
.syllabus td.unit{color:var(--violet);font-size:.9rem;white-space:nowrap}
.syllabus td{vertical-align:middle}
.res{display:inline-block;padding:4px 12px;border-radius:999px;font-size:.85rem;font-weight:700;text-decoration:none;white-space:nowrap}
.res.notes,.res.video{background:var(--gold);color:#1b1200}
.res.soon{border:1px dashed rgba(244,241,234,.25);color:var(--mist)}
@media (max-width:600px){.syllabus td.unit,.syllabus th:nth-child(3){display:none}}

/* Quizzes page */
.quiz-tabs{margin-bottom:22px}
.quiz-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:32px;align-items:start}
@media (max-width:860px){.quiz-layout{grid-template-columns:1fr}}

/* Spirituality library */
.lib{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px}
.lib .card .sk{font-family:var(--serif);font-size:1.7rem;color:var(--gold-soft);line-height:1.2}
.lib .facts{display:flex;flex-wrap:wrap;gap:6px}
.lib .facts span{font-size:.8rem;padding:2px 10px;border-radius:999px;border:1px solid var(--line);color:var(--mist)}
.res-row{display:flex;flex-wrap:wrap;gap:8px}
.paths.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.paths.three{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){.paths.three{grid-template-columns:1fr}}
.nav ul{gap:20px}
header.top .wrap{max-width:1320px}
.logo,.nav ul a{white-space:nowrap}
.nav ul{gap:18px}
.nav ul a{font-size:.97rem}

/* Dropdown menus */
.nav ul li{position:relative}
.nav-btn{display:inline-flex;align-items:center;gap:5px;background:none;border:0;padding:0;color:var(--star);font:500 .97rem var(--display);cursor:pointer;opacity:.85;white-space:nowrap}
.nav-btn:hover,.nav-btn[aria-expanded="true"]{opacity:1;color:var(--gold-soft)}
.nav-btn[data-current="true"]{color:var(--gold-soft);opacity:1}
.nav-btn svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.8;transition:transform .2s}
.nav-btn[aria-expanded="true"] svg{transform:rotate(180deg)}
.sub{display:none;position:absolute;top:calc(100% + 18px);left:-16px;min-width:230px;padding:8px;border:1px solid var(--line);border-radius:14px;background:rgba(14,20,50,.98);box-shadow:0 24px 50px -20px rgba(0,0,0,.7);z-index:40}
.sub.open{display:grid}
.sub a{display:block;padding:9px 12px;border-radius:9px;color:var(--star);text-decoration:none;font-size:.95rem;white-space:nowrap;opacity:1}
.sub a:hover,.sub a:focus-visible{background:rgba(242,169,59,.12);color:var(--gold-soft)}
.sub a.sub-all{color:var(--gold-soft);font-weight:700;border-bottom:1px solid var(--line);border-radius:9px 9px 0 0;margin-bottom:4px}
@media (max-width:1280px){
  .nav ul{max-height:calc(100vh - 64px);overflow-y:auto}
  .nav ul li.has-sub{border-bottom:1px solid var(--line)}
  .nav-btn{width:100%;justify-content:space-between;padding:12px 0;font-size:1rem}
  .sub{position:static;min-width:0;border:0;box-shadow:none;background:transparent;padding:0 0 10px 12px}
  .sub a{padding:9px 10px;border-bottom:0!important}
}
#trackTabs,section[id],article[id]{scroll-margin-top:84px}
@media (max-width:1280px){.nav ul{background:#0b1027}}
.om-btn{z-index:15}

/* ===== Theme preview: electric blue + orange (from the new IQ logo) ===== */
:root{
  --sky:#04060d; --sky-2:#070b18; --panel:#0b1328;
  --star:#eef3fb; --mist:#9fb0cc;
  --gold:#2f8cff; --gold-soft:#7cb8ff;
  --violet:#ff9a3c;
  --line:rgba(140,170,255,.14);
  --orange:#ff8a1f;
}
body{background-color:var(--sky);background-image:radial-gradient(900px 700px at -5% 15%,rgba(30,105,255,.20),transparent 60%),radial-gradient(900px 700px at 105% 35%,rgba(255,120,30,.16),transparent 60%);background-attachment:fixed}
header.top{background:rgba(4,6,13,.85)}
.btn-gold{background:linear-gradient(90deg,#1d6bff,#2f8cff);color:#fff;box-shadow:0 8px 24px -10px rgba(47,140,255,.8)}
.btn-gold:hover{background:linear-gradient(90deg,#2f8cff,#4c9dff)}
.btn-line{border-color:rgba(255,154,60,.45)}
.btn-line:hover{border-color:var(--orange)}
.eyebrow{color:var(--gold)}
.serif{color:#ffa552!important}
.hl,.hero2 h1 em{color:var(--orange)}
.path:hover,.card.featured,.batch.featured,.video:hover,.post-card:hover{border-color:var(--orange)}
.path .go,.post-card .go{color:#ffa552}
.ptab[aria-selected="true"]{background:linear-gradient(90deg,#1d6bff,#2f8cff);border-color:#2f8cff;color:#fff}
.side.adh .lbl{color:var(--orange)}
.side .big{color:#ffb36b}
.thread::before{background:linear-gradient(90deg,#2f8cff,#ff8a1f)}
.thread span{border-color:var(--orange);color:var(--orange)}
.mantra .sk,.lib .card .sk,.aum b,.mantras div{color:#ffb36b}
.badge-pro{background:rgba(255,138,31,.14);color:#ffb36b;border-color:rgba(255,138,31,.55)}
.res.notes,.res.video{background:#2f8cff;color:#fff}
.pill{border-color:rgba(255,138,31,.5);color:#ffb36b}
.om-btn[aria-pressed="true"] .om-glyph{background:var(--orange);color:#1b0d00}
.honest,.cta-band{border-color:var(--orange);background:rgba(255,138,31,.07)}
.honest b,.cta-band b{color:#ffb36b}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo img{width:auto;height:40px;filter:drop-shadow(0 0 10px rgba(47,140,255,.45))}
.logo span{color:var(--gold)}
.hero2-grid{grid-template-columns:1fr;gap:30px}
.hero2-art{order:-1}
.hero2{overflow-x:clip}
.hero2-art{width:100vw;margin-left:calc(50% - 50vw)}
.hero2-art .banner{width:100%;max-width:1700px;margin:0 auto;height:auto;border:0;border-radius:0;box-shadow:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 14%,#000 86%,transparent),linear-gradient(180deg,transparent,#000 22%,#000 78%,transparent);
  -webkit-mask-composite:source-in;mask-image:linear-gradient(90deg,transparent,#000 14%,#000 86%,transparent),linear-gradient(180deg,transparent,#000 22%,#000 78%,transparent);mask-composite:intersect}
@media (max-width:700px){.hero2-art .banner{-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent),linear-gradient(180deg,transparent,#000 14%,#000 86%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent),linear-gradient(180deg,transparent,#000 14%,#000 86%,transparent)}}
.hero2-text{max-width:820px}
footer.site .brand span{color:var(--gold)}