@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Bengali:wght@400;500;600;700&family=Noto+Serif+Bengali:wght@500;600;700&display=swap');

/* Shared modern polish for the static course pages. */
:root{
  --bg:#f8faf9;
  --surface:#ffffff;
  --surface-2:#edf8f2;
  --ink:#12231d;
  --ink-soft:#52655d;
  --ink-faint:#82928c;
  --border:#dce9e2;
  --green:#13b875;
  --green-deep:#08794d;
  --green-tint:#dff7eb;
  --gold:#e9a92b;
  --gold-soft:#ffd36b;
  --gold-tint:#fff3d9;
  --coral:#f26c5b;
  --coral-deep:#d95244;
  --coral-tint:#ffe9e4;
  --purple:#7662e8;
  --purple-tint:#eeeaff;
  --yellow:#f2b93e;
  --yellow-tint:#fff5dc;
  --navy:#1d4d7a;
  --navy-deep:#102f50;
  --navy-tint:#e7f0f8;
  --maroon:#842f42;
  --maroon-tint:#f7e8ec;
  --polish-line:#dce9e2;
  --polish-shadow:0 22px 48px -26px rgba(19,73,52,.38);
}
html{background:var(--bg);}
body{
  background-image:linear-gradient(180deg,#ffffff 0,#f8faf9 42rem);
  font-family:'Noto Sans Bengali','Plus Jakarta Sans','Public Sans','Work Sans',sans-serif;
}
body::selection{background:var(--green);color:#fff;}
h1,h2,h3,h4{font-family:'Noto Serif Bengali','Fraunces','Playfair Display',serif;}
header.site{box-shadow:0 1px 0 var(--polish-line),0 12px 28px -26px rgba(0,0,0,.5);}
.nav{min-height:68px;}
.nav-links a{position:relative;}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-5px;height:2px;background:var(--green, var(--navy, #356b62));transition:right .2s ease;}
.nav-links a:hover::after,.nav-links a.active::after{right:0;}
.btn{box-shadow:none;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;}
.btn:hover{box-shadow:0 12px 24px -18px currentColor;}
.hero{position:relative;isolation:isolate;}
.hero::before{content:"";position:absolute;inset:0 0 auto;z-index:-1;height:clamp(220px,34vw,390px);opacity:.14;pointer-events:none;background:url("https://images.unsplash.com/photo-1456324504439-367cee3b3c32?auto=format&fit=crop&w=1200&q=82") right top/ min(54vw,620px) auto no-repeat;mask-image:linear-gradient(90deg,transparent 6%,#000 62%);}
.card-stage,.hero-stage{filter:drop-shadow(0 20px 28px rgba(7,53,37,.12));}
.card-stage::after,.hero-stage::after{content:"";position:absolute;inset:14% 5% 4%;z-index:-1;background:url("https://images.unsplash.com/photo-1523240795612-9a054b0db644?auto=format&fit=crop&w=900&q=82") center/cover no-repeat;opacity:.1;transform:rotate(3deg);border-radius:18px;}
.course-card,.cat-card,.feat-card,.inst-card,.test-card,.blog-card,.card,.gazette-card,.stack-card,.admit-card{box-shadow:0 1px 0 var(--polish-line);}
.course-card:hover,.cat-card:hover,.card:hover{box-shadow:var(--polish-shadow);}
.course-thumb,.stack-thumb,.blog-thumb{background-image:url("https://images.unsplash.com/photo-1522202176988-66273c2fd55f?auto=format&fit=crop&w=1000&q=82") !important;background-size:cover !important;background-position:center !important;}
.course-thumb{height:350px !important;aspect-ratio:1 / 1;}
.eyebrow{letter-spacing:.1em;}
.cta-banner{background-image:none!important;}
.course-thumb,.stack-thumb,.blog-thumb{position:relative;overflow:hidden;}
.course-thumb::before,.stack-thumb::before,.blog-thumb::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(7,111,72,.78),rgba(33,64,98,.38));}
.course-thumb>* ,.stack-thumb>* ,.blog-thumb>*{position:relative;z-index:1;}
.course-card:nth-child(2) .course-thumb,.blog-card:nth-child(2) .blog-thumb{background-image:url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1000&q=82") !important;}
.course-card:nth-child(3) .course-thumb,.blog-card:nth-child(3) .blog-thumb{background-image:url("https://images.unsplash.com/photo-1524178234?auto=format&fit=crop&w=1000&q=82") !important;}
.course-card,.cat-card,.feat-card,.inst-card,.test-card,.blog-card,.card,.gazette-card,.stack-card,.admit-card{border-radius:12px;}
@media(max-width:720px){
  .hero::before{opacity:.2;background-size:92vw auto;background-position:72px 0;}
  .nav-links a::after{display:none;}
}
@media(max-width:640px){
  .course-thumb{height:min(350px,calc(100vw - 48px)) !important;}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;}}