:root{--primary:#061a2f;--secondary:#123d73;--accent:#008f9f;--success:#078d4d;--text:#0f274d;--muted:#5b6470;--surface:rgba(255,255,255,.84);--shadow:0 8px 22px rgba(15,23,42,.11)}
*{box-sizing:border-box}
body{font-family:"Hind Siliguri","Noto Sans Bengali",sans-serif;color:var(--text);background:#f7fbff;letter-spacing:0}
a{text-decoration:none}
.topbar{background:#03172b;color:#e2e8f0;font-size:13px;padding:8px 0}
.topbar a{color:#e2e8f0}
.main-nav{background:rgba(255,255,255,.98);backdrop-filter:blur(18px);box-shadow:0 1px 8px rgba(15,23,42,.08);padding:16px 0}
.main-nav .nav-link{font-weight:600;color:#0f274d;margin:0 12px}
.navbar-brand strong{display:block;font-size:24px;line-height:1.05;color:#0d3470;font-weight:700}
.navbar-brand small{display:block;font-size:13px;color:#0e2749;line-height:1.1}
.logo-mark{width:58px;height:58px;border-radius:50%;background:#fff;border:3px solid #dbe8f7;display:grid;place-items:center;color:#0d3470;font-size:25px;box-shadow:0 2px 8px rgba(15,23,42,.1)}
.btn{border-radius:5px;font-weight:600}.btn-primary{background:var(--secondary);border-color:var(--secondary)}.btn-success{background:var(--success);border-color:var(--success)}.btn-info{background:var(--accent);border-color:var(--accent);color:#06202a}
.hero-slider{height:548px}.hero-slide{background-size:cover;background-position:center;display:flex;align-items:center;text-align:center}.hero-content{max-width:720px;color:#fff;margin:0 auto}.hero-content span{display:block;font-size:32px;font-weight:700}.hero-content h1{font-size:44px;font-weight:700;line-height:1.12}.hero-content p{font-size:28px;line-height:1.25;max-width:560px;margin:18px auto;color:#fff}.hero-content .btn{display:none}
.swiper-button-next,.swiper-button-prev{width:42px;height:42px;border-radius:50%;background:rgba(3,23,43,.78);color:#fff}.swiper-button-next::after,.swiper-button-prev::after{font-size:20px;font-weight:700}.swiper-pagination-bullet{width:14px;height:14px;background:#fff;opacity:.55}.swiper-pagination-bullet-active{opacity:1}
.section{padding:58px 0}.soft-band{background:#f4f9ff}.section-title{margin-bottom:32px;text-align:center}.section-title h2{font-weight:700;color:#0f274d;display:inline-block;position:relative}.section-title h2::after{content:"";position:absolute;left:50%;bottom:-14px;width:72px;height:4px;background:#0f7894;border-radius:20px;transform:translateX(-50%)}
.service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.glass-card{background:var(--surface);border:1px solid #dfe7f1;box-shadow:var(--shadow);backdrop-filter:blur(18px);border-radius:8px}
.service-card{min-height:214px;padding:34px 20px 24px;text-align:center;transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s cubic-bezier(.4,0,.2,1)}.service-link{display:block;text-decoration:none;color:inherit;cursor:pointer;border-radius:8px;outline:none}.service-link:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.service-link:hover .service-card,.service-link:focus-visible .service-card{transform:translateY(-6px);box-shadow:0 16px 36px rgba(15,23,42,.2)}.service-card i{font-size:48px;margin-bottom:24px;display:block;transition:transform .3s ease}.service-link:hover .service-card i{transform:scale(1.12)}.service-card h3{font-size:18px;font-weight:700;color:#0f274d;transition:color .25s}.service-link:hover .service-card h3{color:var(--secondary)}.service-card p{color:#273548;font-size:14px;margin:12px auto 0;max-width:210px;line-height:1.5}.read-more{font-weight:700;color:var(--secondary)}
.icon-color-1{color:#2369a6}.icon-color-2{color:#238f54}.icon-color-3{color:#f26b00}.icon-color-4{color:#f28a00}.icon-color-5{color:#5b45b4}.icon-color-6{color:#0c70b6}
.news-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.news-heading h2{font-size:26px;font-weight:700;color:#0f274d;margin:0}.news-grid{display:grid;grid-template-columns:1fr;gap:20px}.news-card{background:#fff;border:1px solid #dde7f1;border-radius:8px;box-shadow:0 6px 18px rgba(15,23,42,.08);overflow:hidden;display:flex;flex-direction:column}.news-card-img-link{display:block;overflow:hidden;line-height:0}.news-card-img{width:100%;height:200px;object-fit:cover;transition:transform .3s ease}.news-card-img-link:hover .news-card-img{transform:scale(1.05)}.news-card-body{padding:18px;flex:1;display:flex;flex-direction:column}.news-card-body h3{font-size:17px;font-weight:700;color:#0f274d;line-height:1.35;margin:0 0 8px}.news-card-body h3 a{color:inherit}.news-card-body h3 a:hover{color:var(--secondary)}.news-card-body time{font-size:13px;color:#5b6470;display:block;margin-bottom:10px}.news-card-body p{font-size:14px;color:#273548;line-height:1.5;margin:0 0 14px;flex:1}.news-card-body .read-more{font-weight:700;color:var(--secondary);font-size:14px;align-self:flex-start}.news-card-body .read-more:hover{text-decoration:underline}.news-view-all-mobile{display:none}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);gap:24px}.news-card-img{height:220px}}
@media (min-width:992px){.news-grid{grid-template-columns:repeat(3,1fr);gap:28px}.news-card-img{height:250px}}
.horizontal-card{display:grid;grid-template-columns:150px 1fr;gap:18px;background:#fff;border-radius:16px;padding:14px;box-shadow:0 10px 30px rgba(15,23,42,.08)}.horizontal-card img{width:100%;height:108px;object-fit:cover;border-radius:12px}.horizontal-card h3{font-size:20px;font-weight:700}.horizontal-card p{color:var(--muted);margin:0}
.notice-board{background:var(--primary);border-radius:16px;padding:26px;color:#fff;box-shadow:var(--shadow)}.notice-board h2{font-weight:700}.notice-item{display:flex;gap:12px;color:#e2e8f0;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.leaders-section{padding-top:44px}.profile-card{display:grid;grid-template-columns:190px 1fr;gap:28px;padding:32px;height:100%}.profile-card img{width:170px;height:170px;object-fit:cover;border-radius:50%;background:#e7edf5}.profile-card span{display:block;color:#0f274d;font-size:22px;font-weight:700;margin-bottom:20px}.profile-card h3{font-weight:700;font-size:22px;color:#0f274d}.profile-card h4{font-size:15px;color:#1f2937;margin:14px 0 18px}.profile-card p{font-size:14px;color:#26384f}.mobile-details{display:none}
.image-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);height:100%}.image-card img{width:100%;height:210px;object-fit:cover}.image-card div{padding:20px}.image-card h3{font-size:21px;font-weight:700}.image-card p{color:var(--muted)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.gallery-item img{width:100%;height:180px;object-fit:cover;border-radius:16px;box-shadow:var(--shadow)}
.news-image-link{cursor:pointer;display:block}.news-image-link:hover img{transform:scale(1.03)}.news-image-link img{transition:transform .2s ease}
.news-detail-section{padding:40px 0}.news-detail-card{background:#fff;border-radius:16px;box-shadow:var(--shadow);overflow:hidden}.news-detail-image{width:100%;height:400px;overflow:hidden}.news-detail-image img{width:100%;height:100%;object-fit:cover}.news-detail-content{padding:30px}.news-detail-title{font-size:28px;font-weight:700;color:#0f274d;margin-bottom:10px}.news-detail-date{color:#5b6470;font-size:14px;margin-bottom:20px}.news-detail-description{line-height:1.8;color:#273548;font-size:16px}.news-detail-description p{margin-bottom:16px}
.lightbox-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.9);display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;visibility:hidden}.lightbox-overlay.active{opacity:1;visibility:visible}
.lightbox-content{position:relative;max-width:90vw;max-height:90vh}
.lightbox-image{max-width:100%;max-height:90vh;display:block;border-radius:8px}
.lightbox-close{position:absolute;top:-40px;right:0;background:none;border:none;color:#fff;font-size:32px;cursor:pointer;padding:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center}
.lightbox-close:hover{color:#008f9f}
.lightbox-prev,.lightbox-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.5);border:none;color:#fff;font-size:22px;cursor:pointer;padding:0;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:2}
.lightbox-prev{left:-24px}
.lightbox-next{right:-24px}
.lightbox-prev:hover,.lightbox-next:hover{background:#008f9f}
@media (max-width:768px){.lightbox-prev{left:8px}.lightbox-next{right:8px}}
.video-wrapper{position:relative;width:100%;height:0;padding-bottom:56.25%;border-radius:8px;overflow:hidden}
.video-wrapper video,.video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}
.responsive-media{width:100%;height:auto;max-width:100%;display:block}
@media (max-width:991px){.video-wrapper{padding-bottom:75%}}
@media (max-width:575px){.video-wrapper{padding-bottom:100%}}
.upload-area{border:2px dashed #cbd5e1;border-radius:16px;padding:36px 20px;text-align:center;cursor:pointer;transition:border-color .25s,background .25s}.upload-area:hover{border-color:var(--secondary);background:#f8faff}.upload-area.has-file{border-style:solid;border-color:var(--success)}.upload-area .preview-img{max-width:160px;max-height:160px;border-radius:12px;object-fit:cover;box-shadow:0 4px 14px rgba(15,23,42,.12)}.upload-area.border-danger{border-color:#dc3545}
.contact-section iframe{width:100%;height:390px;border:0;border-radius:16px;box-shadow:var(--shadow)}.contact-form{padding:30px;display:grid;gap:16px;height:100%}
.site-footer{background:#03172b;color:#e2e8f0;padding:28px 0}.site-footer a{color:#e2e8f0}.footer-line{display:flex;align-items:center;justify-content:space-between;gap:16px}.footer-line p{margin:0}.footer-links{align-items:center;gap:14px}
.page-title{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;padding:80px 0}.page-title h1{font-weight:700}.result-shell{max-width:850px;margin-top:70px}.result-search{padding:28px}
.auth-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#dff8ff,#eef2ff)}.auth-card{width:min(430px,92vw);padding:34px}.auth-card h1{font-weight:700}.auth-card form{display:grid;gap:14px}
@media (max-width:1199px){.service-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:991px){.main-nav{background:#03172b;padding:16px 0}.main-nav .navbar-toggler{border:0;color:#fff;font-size:28px;box-shadow:none}.main-nav .nav-link{color:#fff;margin:8px 0}.navbar-brand strong{font-size:18px;color:#fff}.navbar-brand small{font-size:11px;color:#dbeafe}.logo-mark{width:48px;height:48px;font-size:20px}.hero-slider{height:340px}.service-grid{grid-template-columns:repeat(2,1fr);gap:16px}.gallery-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){body{background:#f8fbff}.container{padding-left:18px;padding-right:18px}.hero-slider{height:198px}.hero-content span{font-size:18px}.hero-content h1{font-size:21px}.hero-content p{font-size:17px;margin-top:8px}.swiper-button-next,.swiper-button-prev{width:26px;height:26px}.swiper-button-next::after,.swiper-button-prev::after{font-size:13px}.swiper-pagination-bullet{width:9px;height:9px}.section{padding:30px 0}.services-section .section-title{display:none}.service-grid{grid-template-columns:repeat(2,1fr);gap:10px}.service-card{min-height:110px;padding:18px 8px 14px}.service-card i{font-size:28px;margin-bottom:10px}.service-card h3{font-size:14px;line-height:1.2;margin:0}.service-card p{display:none}.news-section{padding-top:22px}.news-heading h2{font-size:22px}.news-heading .btn{display:none}.news-view-all-mobile{display:block;text-align:center;margin-top:20px}.news-view-all-mobile a{font-weight:700;color:var(--secondary)}.news-detail-image{height:220px}.news-detail-title{font-size:22px}.news-detail-content{padding:20px}.leaders-section{padding-top:24px}.leaders-section .row{--bs-gutter-x:10px}.leaders-section .col-lg-6{width:50%;flex:0 0 auto}.profile-card{display:block;text-align:center;padding:18px 8px 22px}.profile-card img{width:116px;height:116px;margin:10px auto 18px}.profile-card span{font-size:17px;margin-bottom:14px}.profile-card h3{font-size:15px;line-height:1.25;min-height:38px}.profile-card h4{font-size:13px;margin:10px 0 18px}.profile-card p,.desktop-details{display:none}.mobile-details{display:inline-block;min-width:88px}.site-footer{text-align:center;padding:28px 0}.footer-line{display:block}.footer-line p{font-size:13px;line-height:1.35}.footer-social{display:flex;justify-content:center;gap:18px;margin-top:14px}}