:root{
  --bg:#f7f9fc;
  --surface:#ffffff;
  --surface-2:#eef3f9;
  --ink:#0a1220;
  --muted:#667085;
  --line:#dce4ee;
  --primary:#3b5bfd;
  --primary-2:#6c43f3;
  --cyan:#12bde7;
  --lime:#96df46;
  --dark:#08111f;
  --shadow:0 18px 60px rgba(15,23,42,.10);
  --radius:22px;
  --container:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans Bengali","Hind Siliguri",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
img,svg{max-width:100%}
.container{width:min(calc(100% - 32px),var(--container));margin-inline:auto}
.section{position:relative;padding:96px 0}
.section-muted{background:var(--surface-2)}
.section-dark{background:var(--dark);color:#fff}
.skip-link{
  position:fixed;left:12px;top:-60px;z-index:9999;background:#fff;color:#111;
  border-radius:8px;padding:10px 14px;box-shadow:var(--shadow)
}
.skip-link:focus{top:12px}
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,249,252,.82);
  border-bottom:1px solid rgba(220,228,238,.75);
  backdrop-filter:blur(18px);
}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
  font-weight:900;letter-spacing:-.04em;box-shadow:0 10px 25px rgba(59,91,253,.22)
}
.brand-copy{display:flex;flex-direction:column;line-height:1.05}
.brand-copy strong{font-size:16px;letter-spacing:-.02em}
.brand-copy small{font-size:11px;color:var(--muted);margin-top:4px}
.main-nav{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}
.main-nav>a:not(.btn){color:#3b4658}
.main-nav>a:not(.btn):hover{color:var(--primary)}
.menu-btn{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
.menu-btn span{width:23px;height:2px;background:var(--ink);display:block;margin:5px 0;border-radius:99px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
  padding:0 20px;border-radius:12px;border:1px solid transparent;font-weight:800;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 12px 30px rgba(59,91,253,.25)}
.btn-primary:hover{box-shadow:0 16px 36px rgba(59,91,253,.32)}
.btn-ghost{background:rgba(255,255,255,.7);border-color:var(--line)}
.btn-light{background:#fff;color:var(--dark)}
.btn-sm{min-height:38px;padding:0 15px;border-radius:10px}
.btn-lg{min-height:52px;padding:0 24px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.hero{min-height:670px;display:flex;align-items:center;overflow:hidden;padding-top:92px}
.hero-grid{display:grid;grid-template-columns:1.07fr .93fr;gap:72px;align-items:center;position:relative;z-index:2}
.hero-copy h1{
  max-width:720px;margin:18px 0 20px;font-size:clamp(44px,6vw,78px);
  line-height:1.05;letter-spacing:-.055em
}
.hero-copy h1 em{font-style:normal;color:var(--primary)}
.hero-text{max-width:700px;color:var(--muted);font-size:19px}
.eyebrow,.section-kicker{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:900;
  letter-spacing:.14em;text-transform:uppercase;color:var(--primary)
}
.eyebrow span{width:28px;height:2px;background:var(--primary);border-radius:99px}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-points{display:flex;gap:20px;flex-wrap:wrap;margin-top:24px;color:#445064;font-size:14px;font-weight:700}
.hero-panel{
  background:linear-gradient(180deg,#0e192a,#08111f);
  color:#fff;border:1px solid rgba(255,255,255,.07);border-radius:30px;padding:26px;
  box-shadow:0 30px 90px rgba(8,17,31,.28);transform:rotate(1.2deg)
}
.panel-top{display:flex;align-items:start;justify-content:space-between;gap:16px}
.panel-top h2{margin:5px 0 0;font-size:23px;letter-spacing:-.03em}
.mini-label{font-size:10px;letter-spacing:.18em;color:#7f91ab;font-weight:800}
.status-dot{font-size:11px;padding:6px 10px;border-radius:99px;background:rgba(150,223,70,.12);color:#b7f378}
.progress-card{margin-top:26px;background:#111f33;border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:18px}
.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:#a6b3c6}
.progress-meta strong{color:#fff}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.step{padding:13px 8px;border-radius:12px;background:#0a1423;text-align:center;color:#6d7c91}
.step b{display:block;font-size:15px}
.step span{font-size:10px}
.step.active{background:linear-gradient(180deg,rgba(59,91,253,.28),rgba(18,189,231,.10));color:#dffaff;border:1px solid rgba(18,189,231,.22)}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}
.mini-grid article{background:#0c1727;border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:16px}
.mini-grid h3{font-size:14px;margin:10px 0 3px}
.mini-grid p{font-size:11px;color:#8392a8;margin:0}
.icon-chip{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:rgba(59,91,253,.16);color:#9db5ff;font-size:11px;font-weight:900}
.hero-glow{position:absolute;border-radius:50%;filter:blur(12px);opacity:.35;pointer-events:none}
.hero-glow-a{width:420px;height:420px;background:#8de4ff;right:-180px;top:-120px}
.hero-glow-b{width:300px;height:300px;background:#d2c5ff;left:-130px;bottom:-120px}
.trust-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-grid>div{padding:23px 22px;border-right:1px solid var(--line)}
.trust-grid>div:last-child{border-right:0}
.trust-grid strong{display:block;font-size:18px;letter-spacing:-.03em}
.trust-grid span{font-size:12px;color:var(--muted)}
.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:42px}
.section-head h2,.method-copy h2,.admission-copy h2,.contact-grid h2,.mentor-grid h2{
  font-size:clamp(32px,4vw,50px);line-height:1.08;letter-spacing:-.045em;margin:10px 0 0
}
.section-head>p{max-width:520px;margin:0;color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 8px 30px rgba(15,23,42,.04)}
.course-card{position:relative;overflow:hidden}
.course-card.featured{border-color:rgba(59,91,253,.30);box-shadow:0 20px 60px rgba(59,91,253,.11)}
.course-tag{font-size:11px;font-weight:900;letter-spacing:.1em;color:var(--primary);background:#eef1ff;border-radius:999px;padding:6px 9px}
.course-card h3{font-size:24px;letter-spacing:-.03em;margin:18px 0 8px}
.course-card p{color:var(--muted);min-height:84px}
.course-card ul{padding:0;margin:22px 0 24px;list-style:none}
.course-card li{padding:7px 0 7px 24px;position:relative;font-size:14px}
.course-card li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:900}
.course-card>a{font-weight:900;color:var(--primary);font-size:14px}
.method-grid{display:grid;grid-template-columns:1fr .95fr;gap:76px;align-items:center}
.method-copy>p{color:var(--muted);font-size:17px}
.check-list{margin-top:30px;display:grid;gap:13px}
.check-list>div{display:flex;gap:14px;align-items:flex-start}
.check-list span{flex:0 0 36px;height:36px;border-radius:10px;display:grid;place-items:center;background:#e7ecff;color:var(--primary);font-size:12px;font-weight:900}
.check-list p{margin:4px 0;color:#3f4b5e}
.syllabus-card{background:#fff;border-radius:26px;border:1px solid var(--line);padding:26px;box-shadow:var(--shadow)}
.syllabus-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:14px;font-weight:900}
.pill{font-size:10px;background:#eef1ff;color:var(--primary);padding:6px 9px;border-radius:99px}
.skill-row{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-top:1px solid var(--line);font-size:14px}
.skill-row b{font-size:12px;color:var(--primary);text-align:right}
.note{font-size:11px;color:var(--muted);margin:18px 0 0}
.batch-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.batch-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}
.batch-card>div{display:flex;align-items:center;gap:10px}
.batch-card p{color:var(--muted);font-size:14px;margin:10px 0}
.meta{font-size:12px;color:#718096}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block}
.cyan{background:var(--cyan)}.violet{background:#8a5cf5}.lime{background:var(--lime)}
.light{color:#9bb4ff}
.mentor-grid{display:grid;grid-template-columns:1fr .9fr;gap:72px;align-items:center}
.mentor-grid p{color:#97a6bb;max-width:620px}
.mentor-card{display:flex;gap:20px;align-items:center;background:#0e1b2d;border:1px solid rgba(255,255,255,.08);padding:25px;border-radius:22px}
.avatar{width:80px;height:80px;display:grid;place-items:center;border-radius:20px;background:linear-gradient(135deg,var(--primary),var(--cyan));font-size:24px;font-weight:900}
.mentor-card small{color:#8494a9}
.mentor-card h3{margin:5px 0;font-size:21px}
.mentor-card p{margin:0;font-size:13px}
.admission-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:66px;align-items:start}
.admission-copy>p{color:var(--muted);font-size:17px}
.contact-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.contact-mini>div{border:1px solid var(--line);background:#fff;border-radius:15px;padding:16px}
.contact-mini small{display:block;color:var(--muted);font-size:11px}
.contact-mini strong{display:block;margin-top:4px;font-size:13px}
.lead-form{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-size:13px;font-weight:800;margin-bottom:14px}
input,select,textarea{
  width:100%;margin-top:7px;border:1px solid var(--line);background:#fbfcfe;color:var(--ink);
  border-radius:12px;padding:12px 13px;outline:none;transition:border-color .2s,box-shadow .2s
}
input:focus,select:focus,textarea:focus{border-color:#91a3ff;box-shadow:0 0 0 4px rgba(59,91,253,.09)}
textarea{resize:vertical;min-height:110px}
.form-actions{display:flex;gap:10px;flex-wrap:wrap}
.form-result{margin-top:16px;border-radius:14px;font-size:13px;white-space:pre-wrap}
.form-result.success{background:#effbf0;border:1px solid #c7efcc;padding:14px;color:#286232}
.form-result.error{background:#fff2f1;border:1px solid #ffc9c5;padding:14px;color:#8d2f2a}
.faq-wrap{max-width:900px}
.faq-list{display:grid;gap:12px}
details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 20px}
summary{padding:18px 0;cursor:pointer;font-weight:900;list-style:none}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";float:right;color:var(--primary);font-size:22px;line-height:1}
details[open] summary:after{content:"–"}
details p{color:var(--muted);margin:0;padding:0 0 20px}
.contact-section{background:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.contact-grid>div:first-child p{color:var(--muted)}
.contact-card{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:20px;overflow:hidden}
.contact-card>a,.contact-card>div{padding:20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:96px}
.contact-card>*:nth-child(2n){border-right:0}
.contact-card>*:nth-child(n+3){border-bottom:0}
.contact-card span{display:block;color:var(--muted);font-size:11px}
.contact-card strong{display:block;margin-top:5px;font-size:14px;word-break:break-word}
.contact-card a:not([aria-disabled="true"]):hover strong{color:var(--primary)}
.footer{background:#07101c;color:#fff;padding:42px 0}
.footer-grid{display:grid;grid-template-columns:1fr auto auto;gap:30px;align-items:center}
.footer-brand .brand-copy small{color:#8594a8}
.footer p,.footer-copy{color:#7f8fa4;font-size:12px}
.footer-links{display:flex;gap:18px;font-size:12px;color:#b7c3d3}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.in-view{opacity:1;transform:none}

@media (max-width:980px){
  .main-nav{
    display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);
    border-radius:16px;padding:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:6px
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:9px 10px}
  .menu-btn{display:block}
  .hero-grid,.method-grid,.mentor-grid,.admission-grid,.contact-grid{grid-template-columns:1fr;gap:42px}
  .hero{padding-top:70px}
  .hero-panel{transform:none}
  .card-grid{grid-template-columns:1fr}
  .course-card p{min-height:0}
  .batch-grid{grid-template-columns:1fr}
  .section-head{display:block}
  .section-head>p{margin-top:14px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .section{padding:72px 0}
  .nav-wrap{height:68px}
  .brand-mark{width:38px;height:38px}
  .hero-copy h1{font-size:44px}
  .hero-text{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-points{display:grid;gap:7px}
  .mini-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-grid>div:nth-child(2){border-right:0}
  .trust-grid>div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .form-row,.contact-mini,.contact-card{grid-template-columns:1fr}
  .contact-card>a,.contact-card>div{border-right:0!important;border-bottom:1px solid var(--line)!important}
  .contact-card>*:last-child{border-bottom:0!important}
  .footer-links{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}