/* =========================
   THEME
========================= */
:root{
  --pri-900:#0b1028;
  --pri-800:#121642;
  --pri-700:#1f47f0;
  --pri-600:#6366f1;
  --sec-500:#0ea5e9;
  --ink:#10142a;
  --muted:#5a6482;
  --paper:#f7f9ff;
  --white:#ffffff;
  --radius:20px;
  --shadow:0 18px 40px rgba(17,23,56,.18);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Poppins",system-ui,-apple-system,Segoe UI,Roboto,Arial,Helvetica,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
}
h1,h2,h3{margin:0 0 .6rem}
p{margin:.25rem 0 0}
section{padding:72px 7vw}

/* buttons */
.btn-1{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:12px;
  text-decoration:none;font-weight:700;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  box-shadow:0 10px 20px rgba(17,23,56,.22);
}
.btn--light{background:var(--white);color:var(--pri-800)}
.btn--light:hover{transform:translateY(-2px)}
.btn--ghost{
  background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)
}
.btn--ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.12)}

/* titles */
h2{
  text-align:center;
  font-size:clamp(1.6rem,2.2vw,2.2rem);
  color:var(--pri-800);
  letter-spacing:.2px; position:relative;
}
h2::after{
  content:""; display:block; width:86px; height:4px;
  margin:10px auto 0; border-radius:6px;
  background:linear-gradient(90deg,var(--sec-500),var(--pri-600));
}

/* =========================
   HERO
========================= */
.hero{
  position:relative; color:#fff;
  padding:96px 7vw 40px;
  background: radial-gradient(1200px 600px at 20% -10%, #3b82f6 0%, transparent 60%),
              radial-gradient(800px 400px at 80% 0%, #06b6d4 0%, transparent 60%),
              linear-gradient(135deg,#0b1028 0%, #121642 50%, #1f47f0 100%);
  overflow:hidden;
}
.hero__bg .blob{
  position:absolute; filter:blur(40px); opacity:.45; border-radius:50%;
}
.blob.b1{width:340px;height:340px;background:#60a5fa; left:-80px; top:-60px; animation:float 8s ease-in-out infinite;}
.blob.b2{width:260px;height:260px;background:#67e8f9; right:10%; top:-40px; animation:float2 10s ease-in-out infinite;}
.blob.b3{width:320px;height:320px;background:#a78bfa; right:-80px; bottom:-80px; animation:float 12s ease-in-out infinite reverse;}

.hero__content{
  position:relative; z-index:2;
  display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;
}
.hero__copy h1{
  font-size:clamp(2rem,3.2vw,3rem);
}
.hero__copy p{max-width:720px;opacity:.95}
.hero__cta{display:flex;gap:12px;margin:18px 0 10px}
.hero__badges{display:flex;flex-wrap:wrap;gap:16px;padding:0;margin:18px 0 0;list-style:none}
.hero__badges li{
  display:flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.12)
}

.hero__art{display:flex;justify-content:center}
.hero__art img{
  width:min(360px,38vw);
  filter:drop-shadow(0 22px 38px rgba(0,0,0,.35));
  animation:pop 1s ease-out both, float 5.5s ease-in-out infinite;
}
.wave{
  position:absolute;left:0;right:0;bottom:-1px;height:40px;background:
  radial-gradient(100% 120% at 0 0, transparent 48%, #f7f9ff 50%) left,
  radial-gradient(100% 120% at 100% 0, transparent 48%, #f7f9ff 50%) right;
  background-size:50% 100%; background-repeat:no-repeat;
}

/* =========================
   WHY
========================= */
.why{background:#fff}
.why__grid{
  margin-top:34px;display:grid;gap:22px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
}
.card{
  background:linear-gradient(180deg,#ffffff 0%, #f3f6ff 100%);
  border:1px solid rgba(17,23,56,.08); border-radius:16px; padding:24px 20px;
  text-align:center; box-shadow:0 8px 26px rgba(17,23,56,.08);
  transition:transform .28s ease, box-shadow .28s ease;
  animation:fadeUp .7s ease both; /* stagger with nth-child in next rule */
}
.card i{font-size:30px;color:var(--pri-700);display:inline-block;margin-bottom:10px}
.card:nth-child(1){animation-delay:.05s}
.card:nth-child(2){animation-delay:.15s}
.card:nth-child(3){animation-delay:.25s}
.card:nth-child(4){animation-delay:.35s}
.card:hover{transform:translateY(-8px); box-shadow:var(--shadow)}

/* =========================
   DEPARTMENTS
========================= */
.departments{background:linear-gradient(180deg,#ffffff 0%, #eef3ff 100%)}
.dept__grid{
  margin-top:28px; display:grid; gap:22px;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}
.dept{
  display:block; background:#fff; border:1px solid rgba(17,23,56,.08);
  border-radius:18px; padding:24px 20px; text-align:center;
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.dept img{width:64px;height:64px;display:block;margin:0 auto 10px}
.dept h3{color:var(--pri-800);margin-bottom:6px}
.dept p{color:var(--muted)}
.dept:hover{
  transform:translateY(-10px);
  border-color:rgba(31,71,240,.35);
  box-shadow:0 18px 34px rgba(31,71,240,.18);
}

/* =========================
   LABS
========================= */
.labs{background:#fff}
.labs__grid{
  margin-top:28px; display:grid; gap:22px;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}
.lab{
  position:relative; overflow:hidden; border-radius:18px;
  box-shadow:0 16px 34px rgba(17,23,56,.16);
  transform:translateY(0); transition:transform .35s ease;
}
.lab img{width:100%; height:220px; object-fit:cover; display:block; filter:saturate(105%) contrast(105%)}
.lab figcaption{
  background:#fff; padding:16px 18px;
}
.lab:hover{transform:translateY(-8px)}

/* =========================
   ROADMAP
========================= */
.roadmap{background:linear-gradient(180deg,#f3f7ff 0%, #eef3ff 100%)}
.timeline{
  max-width:900px;margin:32px auto 0; position:relative; padding-left:24px;
}
.timeline::before{
  content:""; position:absolute; left:16px; top:0; bottom:0; width:4px; border-radius:4px;
  background:linear-gradient(var(--sec-500),var(--pri-600)); opacity:.4;
}
.titem{
  position:relative; margin:0 0 22px 36px; background:#fff;
  border:1px solid rgba(17,23,56,.08); border-left:6px solid var(--pri-600);
  border-radius:14px; padding:18px 20px 18px 22px;
  box-shadow:0 10px 26px rgba(17,23,56,.08);
  animation:fadeUp .7s ease both;
}
.titem:not(:first-child){animation-delay:.12s}
.titem:nth-child(3){animation-delay:.22s}
.titem:nth-child(4){animation-delay:.32s}
.titem .pill{
  display:inline-block; padding:6px 10px; border-radius:999px; font-weight:700;
  color:#fff; background:linear-gradient(90deg,var(--sec-500),var(--pri-600)); margin-bottom:4px;
}
.titem h4{margin:2px 0 4px;color:var(--pri-800)}
.titem::after{
  content:""; position:absolute; left:-30px; top:24px;
  width:14px; height:14px; border-radius:50%;
  background:linear-gradient(135deg,var(--sec-500),var(--pri-600));
  box-shadow:0 0 0 4px #fff;
}

/* =========================
   RECRUITERS (Marquee)
========================= */
.recruiters{background:#fff}
.marquee{
  overflow:hidden; border-radius:16px; margin-top:26px;
  background:linear-gradient(90deg,#ffffff,#f4f7ff);
  border:1px solid rgba(17,23,56,.08);
}
.marquee__track{
  display:flex; gap:16px; padding:16px; margin:0; list-style:none;
  animation:scrollX 22s linear infinite;
}
.chip{
  padding:10px 14px; border-radius:999px;
  background:#fff; border:1px solid rgba(17,23,56,.08);
  box-shadow:0 10px 20px rgba(17,23,56,.08); font-weight:700; color:var(--pri-800);
}

/* =========================
   SHOWCASE
========================= */
.showcase{background:linear-gradient(180deg,#ffffff 0%, #eef3ff 100%)}
.show__grid{
  margin-top:28px; display:grid; gap:22px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
}
.show-1{
  background:#fff; border:1px solid rgba(17,23,56,.08); border-radius:18px; padding:24px 20px;
  text-align:center; transition:transform .28s ease, box-shadow .28s ease;
}
.show-1 i{font-size:32px;color:var(--pri-700);display:block;margin-bottom:10px}
.show-1:hover{transform:translateY(-8px); box-shadow:var(--shadow)}

/* =========================
   FAQ
========================= */
.faq{background:#fff}
.faq details{
  max-width:820px; margin:12px auto; background:#fff;
  border:1px solid rgba(17,23,56,.1); border-radius:14px; padding:14px 16px;
  transition:box-shadow .25s ease, transform .25s ease;
}
.faq details[open]{box-shadow:0 18px 34px rgba(17,23,56,.12); transform:translateY(-2px)}
.faq summary{cursor:pointer; font-weight:700; color:var(--pri-800)}
.faq p{color:var(--muted); margin-top:8px}

/* =========================
   CTA
========================= */
.cta{
  background: radial-gradient(600px 240px at 20% 0,#67e8f9 0%, transparent 70%),
              radial-gradient(800px 300px at 80% 10%, #a78bfa 0%, transparent 60%),
              linear-gradient(135deg,#0b1028,#121642 60%, #1f47f0 100%);
  color:#fff; text-align:center; padding:84px 7vw;
}
.cta__box{
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.2);
  border-radius:22px; padding:28px; max-width:900px; margin:0 auto;
  backdrop-filter:saturate(120%) blur(6px);
}
.cta__box h2{color:#fff}
.cta__box h2::after{background:linear-gradient(90deg,#fff,#c7d2fe)}

/* =========================
   ANIMATIONS
========================= */
@keyframes pop{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(-14px,10px)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* =========================
   RESPONSIVE
========================= */
@media (max-width:920px){
  .hero__content{grid-template-columns:1fr; text-align:left}
  .hero__art{order:-1}
  .hero__copy p{max-width:unset}
}