:root{
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);

  --blue:#1F4FD8;
  --navy:#0B1F5C;
  --sky:#8EC5FF;
  --sky-soft:#DCEEFF;
  --ink:#0B1B3D;

  --bg:#EEF4FF;
  --surface:#FFFFFF;
  --text:#0B1B3D;
  --muted:#4A5F87;
  --line:#C9D9F2;
  --sky-text:#1673C8;
  --blue-text:#1F4FD8;
  --outline:#0B1B3D;

  --f-head:"Yatra One","Noto Serif Devanagari","Kohinoor Devanagari",Georgia,serif;
  --f-body:"Mukta","Noto Sans Devanagari","Kohinoor Devanagari","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#071230;
    --surface:#0F1E45;
    --text:#E6EEFF;
    --muted:#9FB2DD;
    --line:#24376B;
    --sky-text:#5FA8FF;
    --blue-text:#9CC9FF;
    --outline:#E6EEFF;
  }
}
:root[data-theme="dark"]{
  --bg:#071230;
  --surface:#0F1E45;
  --text:#E6EEFF;
  --muted:#9FB2DD;
  --line:#24376B;
  --sky-text:#5FA8FF;
  --blue-text:#9CC9FF;
  --outline:#E6EEFF;
}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
*,*::before,*::after{box-sizing:inherit}
html,body{max-width:100%;overflow-x:hidden}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--f-body);
  font-size:18px;
  line-height:1.75;
  -webkit-text-size-adjust:100%;
  overflow-wrap:anywhere;
  word-break:break-word;
}
img,svg{max-width:100%;height:auto}
h1,h2,h3{font-family:var(--f-head);font-weight:400;margin:0}
p{margin:0}
a{color:inherit}
section{scroll-margin-top:84px}
.wrap{max-width:1160px;margin-inline:auto;padding-inline:clamp(1rem,4vw,2rem)}
.hero-split > *,.duo > *,.about .wrap > *,.contact .wrap > *,.steps li,.reach li,.svc li,.feats li{min-width:0}
:focus-visible{outline:3px solid var(--outline);outline-offset:3px;border-radius:6px}

/* Header */
.site-header{
  position:sticky;top:env(safe-area-inset-top,0px);z-index:20;
  background:var(--bg);
  background:color-mix(in srgb,var(--bg) 90%,transparent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.brand .mark{width:46px;height:auto;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-family:var(--f-head);font-weight:400;font-size:1.35rem}
.brand-text small{font-size:.78rem;color:var(--muted);letter-spacing:.02em}
.nav{display:flex;align-items:center;gap:1.5rem}
.nav a{text-decoration:none;font-weight:500}
.nav a:not(.btn):hover{color:var(--blue-text);text-decoration:underline;text-underline-offset:6px}
@media (max-width:760px){.nav a:not(.btn){display:none}}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:.55rem 1.5rem;border-radius:999px;
  font:inherit;font-weight:600;line-height:1.3;text-align:center;text-decoration:none;
  border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease,background-color .15s ease,color .15s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-build{background:var(--blue);color:#fff;border-color:rgba(255,255,255,.22)}
.btn-build:hover{background:var(--navy)}
.btn-learn{background:var(--sky);color:var(--ink)}
.btn-learn:hover{background:#A9D3FF}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--text)}
.btn-onblue{background:var(--sky);color:var(--ink)}
.btn-onblue:hover{background:#A9D3FF}
.btn-onyellow{background:var(--ink);color:#fff}
.btn-onyellow:hover{background:#000}

/* Hero */
.hero{padding:clamp(1.75rem,4vw,3rem) 0 clamp(2rem,4vw,3rem);text-align:center}
.hero h1{font-size:clamp(1.85rem,5vw,3.5rem);line-height:1.35}
.hero h1 span{display:block}
.h-build{color:var(--blue-text)}
.h-learn{color:var(--sky-text)}
.hero-art{max-width:clamp(320px,54vw,480px);margin:clamp(1rem,2.5vw,1.5rem) auto 0}
.hero-art svg{display:block;width:100%;height:auto;overflow:visible}
.hero-split{
  max-width:860px;margin:clamp(.5rem,2vw,1.25rem) auto 0;
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.25rem,4vw,3rem);
}
.hero-split p{max-width:34ch;margin:0 auto 1.1rem;color:var(--muted)}
@media (max-width:700px){.hero-split{grid-template-columns:1fr;gap:2rem}}

.lids{transform-origin:360px 190px;animation:eyeopen 1.1s cubic-bezier(.2,.8,.2,1) both}
@keyframes eyeopen{from{transform:scaleY(.04)}to{transform:scaleY(1)}}
.eye-outline{fill:none;stroke:var(--outline);stroke-width:6;stroke-linejoin:round}
#pupil{transition:transform .18s ease-out}

/* Services: two equal halves */
.services{padding:clamp(2rem,5vw,3.5rem) 0 clamp(3rem,6vw,5rem)}
.sec-title{text-align:center;font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.4;margin-bottom:clamp(1.5rem,3vw,2.5rem)}
.duo{display:grid;grid-template-columns:1fr 1fr}
.panel{padding:clamp(1.5rem,3.5vw,2.75rem);display:flex;flex-direction:column;gap:1.4rem}
.panel-build{background:var(--blue);color:#fff;border-radius:32px 0 0 32px}
.panel-learn{background:var(--sky);color:var(--ink);border-radius:0 32px 32px 0}
.panel h3{font-size:clamp(1.4rem,2.6vw,1.9rem);line-height:1.4}
.panel .lead{max-width:44ch}
.panel-build .lead{color:rgba(255,255,255,.86)}
.panel-learn .lead{color:rgba(11,27,61,.86)}
.scene{display:block;width:100%;height:auto;border-radius:20px}
.svc{list-style:none;margin:0;padding:0;display:grid;gap:1.1rem}
.svc li{display:grid;grid-template-columns:44px 1fr;gap:.95rem;align-items:start}
.ic-wrap{width:44px;height:44px;border-radius:50%;display:grid;place-items:center}
.panel-build .ic-wrap{background:rgba(255,255,255,.13)}
.panel-learn .ic-wrap{background:rgba(11,27,61,.11)}
.ic{width:24px;height:24px}
.svc b{display:block;font-weight:700;line-height:1.4}
.svc .d{display:block;font-size:.94rem;line-height:1.6;opacity:.86}
.panel .note{font-size:.95rem;line-height:1.65;opacity:.9}
.panel .btn{align-self:flex-start;margin-top:auto}
@media (max-width:860px){
  .duo{grid-template-columns:1fr}
  .panel-build{border-radius:32px 32px 0 0}
  .panel-learn{border-radius:0 0 32px 32px}
}

/* Gallery */
.gallery{padding:0 0 clamp(2.5rem,5vw,4rem)}
.sec-lead{text-align:center;color:var(--muted);max-width:52ch;margin:calc(-1 * clamp(.75rem,2vw,1.5rem)) auto clamp(1.5rem,3vw,2.25rem)}
.tiles{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.75rem,2vw,1.25rem)}
.tile{border-radius:20px;overflow:hidden;background:var(--surface);box-shadow:0 1px 0 var(--line),0 14px 26px -18px rgba(11,31,92,.55)}
.tile img{display:block;width:100%;height:auto;aspect-ratio:358/345;object-fit:cover;transition:transform .4s ease}
.tile:hover img{transform:scale(1.045)}
@media (max-width:900px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media (max-width:540px){.tiles{grid-template-columns:1fr;max-width:420px;margin-inline:auto}}

/* Why us */
.why{background:var(--surface);border-block:1px solid var(--line);padding:clamp(2.5rem,5vw,4rem) 0}
.feats{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);gap:1.5rem 1rem}
.feats li{display:flex;flex-direction:column;align-items:center;text-align:center;gap:.15rem}
.f-ic{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;margin-bottom:.6rem;background:#DCEEFF;color:#1F4FD8}
.f-ic .ic{width:30px;height:30px}
.feats b{font-weight:700;line-height:1.4}
.f-d{font-size:.92rem;color:var(--muted);line-height:1.5}
@media (max-width:1000px){.feats{grid-template-columns:repeat(3,1fr)}}
@media (max-width:540px){.feats{grid-template-columns:repeat(2,1fr)}}

/* Process */
.process{padding:clamp(2.5rem,5vw,4rem) 0}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.steps li{position:relative}
.steps li:not(:last-child)::before{
  content:"";position:absolute;top:21px;left:56px;right:-1.5rem;height:2px;background:var(--line);
}
.num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--blue);color:#fff;font-family:var(--f-head);font-size:1.15rem;line-height:1;
  border:2px solid rgba(255,255,255,.22);
}
.steps li:last-child .num{background:var(--sky);color:var(--ink);border-color:transparent}
.steps h3{font-size:1.25rem;line-height:1.5;margin:.9rem 0 .25rem}
.steps p{color:var(--muted);font-size:.98rem;line-height:1.65}
.process-note{margin-top:2rem;text-align:center;color:var(--muted)}
@media (max-width:860px){
  .steps{grid-template-columns:1fr;gap:1.6rem}
  .steps li{padding-left:64px}
  .steps .num{position:absolute;left:0;top:0}
  .steps h3{margin-top:0}
  .steps li:not(:last-child)::before{top:48px;bottom:-1.6rem;left:21px;right:auto;width:2px;height:auto}
}

/* About */
.about{background:var(--surface);border-block:1px solid var(--line);padding:clamp(2.5rem,6vw,4.5rem) 0}
.about .wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,5vw,4rem);align-items:center}
.about h2{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.4;margin-bottom:1rem}
.about p{max-width:52ch;color:var(--muted)}
.about p + p{margin-top:1rem}
.about img{display:block;width:100%;height:auto}
@media (max-width:860px){.about .wrap{grid-template-columns:1fr}}

/* Contact */
.contact{padding:clamp(2.5rem,6vw,4.5rem) 0 clamp(3rem,6vw,5rem)}
.contact .wrap{display:grid;grid-template-columns:5fr 6fr;gap:clamp(1.5rem,5vw,4rem);align-items:start}
.contact h2{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.4;margin-bottom:.9rem}
.contact .intro{color:var(--muted);max-width:40ch}
.reach{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;gap:.9rem}
.reach li{display:grid;grid-template-columns:44px 1fr;gap:.9rem;align-items:center}
.reach .ic-wrap{background:var(--blue);color:#fff}
.reach small{display:block;color:var(--muted);font-size:.85rem;line-height:1.3}
.reach b{font-weight:600;overflow-wrap:anywhere}
.form{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:clamp(1.25rem,3vw,2rem);display:grid;gap:1.1rem}
.field label,.need legend{display:block;font-weight:600;margin-bottom:.35rem;padding:0}
.field input,.field textarea{
  width:100%;font:inherit;color:var(--text);background:var(--bg);
  border:1.5px solid var(--line);border-radius:12px;padding:.65rem .9rem;
}
.field textarea{resize:vertical;min-height:110px}
.field input:focus-visible,.field textarea:focus-visible{outline:3px solid var(--sky);outline-offset:1px;border-color:var(--blue-text)}
.need{border:0;margin:0;padding:0;min-width:0}
.need .opts{display:flex;flex-wrap:wrap;gap:.6rem}
.need label{position:relative;display:inline-block}
.need input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.need span{display:inline-block;padding:.45rem 1.05rem;border-radius:999px;border:1.5px solid var(--line);background:var(--bg);font-weight:500}
.need input:checked + span{background:var(--blue);color:#fff;border-color:var(--blue)}
.need input[value="learn"]:checked + span{background:var(--sky);color:var(--ink);border-color:var(--sky)}
.need input:focus-visible + span{outline:3px solid var(--outline);outline-offset:3px}
.actions{display:flex;flex-wrap:wrap;gap:.7rem}
.hint{font-size:.9rem;color:var(--muted);line-height:1.6}
@media (max-width:860px){.contact .wrap{grid-template-columns:1fr}}

/* FAQ */
.faq{padding:clamp(2.5rem,6vw,4.5rem) 0 0}
.faq-list{max-width:820px;margin-inline:auto;display:grid;gap:.75rem}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:0 1.25rem}
.faq summary{
  cursor:pointer;list-style:none;font-weight:600;line-height:1.5;padding:1rem 2rem 1rem 0;position:relative;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:.2rem;top:50%;width:.6rem;height:.6rem;margin-top:-.45rem;
  border-right:2.5px solid var(--blue-text);border-bottom:2.5px solid var(--blue-text);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);margin-top:-.15rem}
.faq details p{color:var(--muted);padding:0 0 1.1rem;max-width:62ch}

/* Language button */
.lang-btn{
  font:inherit;font-weight:600;font-size:.95rem;line-height:1.2;cursor:pointer;
  min-height:40px;padding:.35rem 1rem;border-radius:999px;
  background:transparent;color:var(--text);border:1.5px solid var(--line);
}
.lang-btn:hover{border-color:var(--text)}
@media (max-width:480px){
  .brand-text small{display:none}
  .nav{gap:.6rem}
  .nav .btn{min-height:40px;padding:.35rem 1rem}
  .brand .mark{width:40px}
}

/* Footer */
.site-footer{background:var(--navy);color:#fff;padding:2rem 0}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:.6rem 2rem;justify-content:space-between;align-items:center}
.site-footer p{color:rgba(255,255,255,.82);font-size:.95rem}
.site-footer .tag{font-family:var(--f-head);font-size:1.15rem;color:var(--sky)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .lids{animation:none}
  #pupil{transition:none}
  .btn{transition:none}
  .btn:hover{transform:none}
  .tile img{transition:none}
  .tile:hover img{transform:none}
}

/* Page banner (non-home pages) */
.page-banner{padding:clamp(2rem,5vw,3.25rem) 0 0;text-align:center}
.page-banner h1{font-size:clamp(1.7rem,4vw,2.6rem);line-height:1.4}
.page-banner p{color:var(--muted);max-width:56ch;margin:.6rem auto 0}

/* Single (solo) service panel used on services.html / classes.html */
.duo.solo{grid-template-columns:1fr;max-width:920px;margin-inline:auto}
.duo.solo .panel-build,.duo.solo .panel-learn{border-radius:32px}

/* Nav active page */
.nav a[aria-current="page"]{color:var(--blue-text);text-decoration:underline;text-underline-offset:6px}