@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&display=swap');
:root{--navy:#102344;--blue:#2457d6;--cyan:#1bb6b4;--ink:#18243b;--muted:#64718a;--line:#e4e9f1;--pale:#f5f8fc;--white:#fff;--shadow:0 18px 50px rgba(20,42,78,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,'Hind Siliguri',sans-serif;line-height:1.65}body:lang(bn){font-family:'Hind Siliguri',Inter,sans-serif}a{color:inherit;text-decoration:none}p{color:var(--muted);margin:0 0 1rem}h1,h2,h3{line-height:1.2;margin:0 0 1rem;letter-spacing:-.03em}h1{font-size:clamp(2.4rem,5vw,4.5rem)}h2{font-size:clamp(1.8rem,3vw,2.6rem)}h3{font-size:1.2rem}.container{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{height:82px;background:#fff;border-bottom:1px solid #edf0f5;display:flex;align-items:center;position:relative;z-index:10}.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:500;line-height:1.2}.brand b{display:block;font-size:15px}.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:.08em;margin-top:5px}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:800;font-size:16px;letter-spacing:-.06em}.nav-links{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:600}.nav-links a:hover,.text-link:hover{color:var(--blue)}.lang-switch{border:1px solid var(--line);border-radius:8px;padding:8px 12px}.nav-toggle{display:none;background:none;border:0;font-size:25px}.hero{position:relative;overflow:hidden;background:linear-gradient(115deg,#f6f9ff 0%,#f1fbfb 100%);padding:84px 0 78px}.hero:before{content:"";position:absolute;width:650px;height:650px;right:-250px;top:-300px;border-radius:50%;background:rgba(36,87,214,.055)}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:65px;position:relative}.eyebrow{display:inline-block;color:var(--blue);font-size:11px;letter-spacing:.16em;font-weight:800;margin-bottom:16px}.hero h1{max-width:650px;color:var(--navy);margin-bottom:22px}.hero-copy>p{font-size:17px;max-width:550px;line-height:1.8}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font:inherit;font-size:13px;font-weight:700;cursor:pointer;transition:.2s}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(36,87,214,.18)}.btn-primary:hover{background:#1747c2;transform:translateY(-1px)}.btn-outline{border-color:#cbd5e5;color:var(--navy);background:#fff}.btn-outline:hover{border-color:var(--blue)}.btn-light{background:#fff;color:var(--navy)}.btn-small{padding:8px 12px;font-size:12px}.hero-points{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:11px}.hero-card{border:1px solid #e3eaf5;background:#fff;border-radius:24px;padding:20px;box-shadow:var(--shadow);transform:rotate(1deg)}.hero-card-top{font-size:10px;letter-spacing:.12em;font-weight:800;color:var(--muted);display:flex;gap:8px;align-items:center}.live-dot{width:8px;height:8px;background:var(--cyan);border-radius:50%;box-shadow:0 0 0 5px #e1f8f7}.hero-illustration{height:300px;background:linear-gradient(135deg,#edf3ff,#e8fbf8);border-radius:17px;margin:18px 0;display:grid;place-items:center;position:relative;overflow:hidden}.hero-illustration:before,.hero-illustration:after{content:"";position:absolute;border:1px solid rgba(36,87,214,.15);border-radius:50%;width:270px;height:270px}.hero-illustration:after{width:360px;height:360px}.screen{position:relative;z-index:1;width:205px;height:155px;background:#fff;border-radius:12px;box-shadow:0 20px 35px #18335c20;padding:15px}.screen-bar{height:8px;width:65px;background:var(--cyan);border-radius:10px;margin-bottom:18px}.screen-lines i{display:block;width:90%;height:7px;background:#e8edf6;border-radius:5px;margin:9px 0}.screen-lines i:nth-child(2){width:65%}.screen-lines i:nth-child(3){width:78%}.screen-chart{position:absolute;right:18px;bottom:15px;color:var(--blue);font-size:28px}.floating{position:absolute;z-index:2;background:#fff;padding:10px 13px;border-radius:10px;box-shadow:0 10px 22px #18335c12;font-size:11px;font-weight:700}.f1{top:48px;left:20px}.f2{right:16px;top:100px}.f3{bottom:38px;left:30px;color:var(--blue)}.hero-card-bottom{display:flex;justify-content:space-between;align-items:center;font-size:12px}.hero-card-bottom span{color:var(--muted)}.stats-strip{background:#fff;border-bottom:1px solid var(--line)}.stats{display:grid;grid-template-columns:repeat(4,1fr);padding:23px 0}.stats>div{padding:0 22px;border-right:1px solid var(--line)}.stats>div:first-child{padding-left:0}.stats>div:last-child{border:0}.stats strong,.stats span{display:block}.stats strong{font-size:15px;color:var(--navy)}.stats span{font-size:11px;color:var(--muted)}.section{padding:82px 0}.section-tint{background:var(--pale)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}.section-heading h2{margin-bottom:10px}.section-heading p{margin-bottom:0}.text-link{color:var(--blue);font-size:12px;font-weight:800;white-space:nowrap}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.course-grid-all{grid-template-columns:repeat(3,1fr)}.course-card{border:1px solid var(--line);background:#fff;border-radius:17px;padding:26px;box-shadow:0 7px 20px rgba(20,42,78,.025);transition:.2s}.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d4e0f6}.course-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:#edf2ff;color:var(--blue);font-size:25px;margin-bottom:22px}.course-kicker{font-size:9px;letter-spacing:.13em;color:var(--cyan);font-weight:800}.course-card h3{margin:10px 0}.course-card p{font-size:13px;min-height:62px}.course-meta{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:14px 0;border-top:1px solid var(--line);margin:16px 0;color:var(--muted);font-size:11px}.course-meta strong{color:var(--navy)}.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.why-grid>div:first-child p{max-width:480px}.benefit-list>div{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}.benefit-list>div:last-child{border:0}.benefit-list>div>span{font-size:13px;color:var(--blue);font-weight:800}.benefit-list h3{margin-bottom:6px}.benefit-list p{font-size:13px;margin:0}.cta-band{background:linear-gradient(110deg,var(--navy),#1c3f7e);padding:48px 0;color:#fff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta-inner h2{margin-bottom:10px}.cta-inner p{color:#d2ddef;max-width:620px;margin:0}.cta-inner .eyebrow{color:#77e2db}.page-hero{background:linear-gradient(115deg,#f6f9ff,#f0fbfa);padding:65px 0}.page-hero h1{font-size:clamp(2.2rem,4vw,3.4rem);margin-bottom:14px}.page-hero p{max-width:680px;margin:0;font-size:15px}.content-narrow{max-width:850px}.content-narrow h2{font-size:24px;margin-top:28px}.content-narrow p{line-height:1.9}.form-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px;align-items:start}.form-intro{position:sticky;top:20px}.form-intro h2{font-size:29px}.notice{background:#f0f7ff;border-left:3px solid var(--blue);padding:17px;border-radius:0 10px 10px 0;margin-top:25px}.notice p{font-size:12px;margin:7px 0 0}.form-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:28px;box-shadow:0 12px 35px rgba(20,42,78,.05)}label{display:block;font-size:12px;font-weight:700;color:var(--ink);margin-bottom:17px}input,select,textarea{display:block;width:100%;margin-top:8px;border:1px solid #d8e0ec;border-radius:8px;padding:12px 13px;font:inherit;font-size:13px;color:var(--ink);background:#fff;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #2457d612}textarea{resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.success-card{max-width:680px;margin:30px auto;text-align:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:50px;box-shadow:var(--shadow)}.success-icon{width:64px;height:64px;display:grid;place-items:center;border-radius:50%;background:#e5faf1;color:#14845b;font-size:32px;margin:0 auto 22px}.reference{display:inline-block;background:#f0f5ff;color:var(--blue);padding:12px 20px;border-radius:9px;letter-spacing:.08em;margin:8px 0 18px}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px}.contact-info h2{font-size:30px}.contact-line{display:flex;gap:14px;margin:24px 0}.contact-line>span{display:grid;place-items:center;width:42px;height:42px;flex-shrink:0;background:#edf2ff;color:var(--blue);border-radius:12px;font-size:20px}.contact-line strong{font-size:13px}.contact-line p{font-size:12px;margin:4px 0 0}.site-footer{background:#0b1830;color:#fff;padding:55px 0 0}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:50px;padding-bottom:38px}.footer-brand{color:#fff}.footer-grid p{color:#aab7cc;font-size:12px;margin:18px 0 0}.footer-grid h3{font-size:14px}.footer-grid a:not(.brand){color:#cbd5e4}.copyright{text-align:center;border-top:1px solid #ffffff1a;padding:17px 10px;color:#aab7cc;font-size:11px}.alert{border-radius:9px;padding:13px 15px;font-size:12px;margin-bottom:18px}.alert p{margin:4px 0}.alert-error{background:#fff0f0;color:#a22;border:1px solid #ffd3d3}.alert-success{background:#eafaf1;color:#176e4c;border:1px solid #bcebd0}.empty-state{padding:30px;border:1px dashed var(--line);border-radius:15px}.muted{font-size:12px;color:var(--muted)}.admin-body{min-height:100vh;background:linear-gradient(135deg,#f2f7ff,#f3fbfa);display:grid;place-items:center;padding:25px}.login-card{width:min(440px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--shadow)}.login-card h1{font-size:28px;margin-top:28px}.login-card .brand{margin-bottom:8px}.login-card .btn{width:100%}.admin-shell{background:#f4f7fb;min-height:100vh;display:flex}.admin-sidebar{width:245px;flex-shrink:0;background:#101f3e;color:#fff;padding:25px 16px;min-height:100vh}.admin-sidebar .brand{color:#fff;margin:0 8px 42px;font-size:12px}.admin-sidebar .brand-mark{width:38px;height:38px}.admin-label{font-size:9px;letter-spacing:.15em;color:#8798b7;padding:0 12px}.admin-sidebar>a:not(.brand){display:block;padding:12px 14px;border-radius:8px;margin:4px 0;font-size:12px;color:#c4d0e3}.admin-sidebar>a.active,.admin-sidebar>a:not(.brand):hover{background:#263b62;color:#fff}.admin-main{padding:35px;min-width:0;flex:1}.admin-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.admin-top h1{font-size:32px;margin:0}.admin-top>div:last-child,.admin-top>a{font-size:12px;color:var(--muted)}.admin-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:25px}.admin-stats>div{background:#fff;border:1px solid var(--line);border-radius:13px;padding:20px}.admin-stats span,.admin-stats strong{display:block}.admin-stats span{font-size:11px;color:var(--muted)}.admin-stats strong{font-size:30px;color:var(--navy);margin-top:8px}.admin-panel{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:22px;padding:22px;min-width:0}.admin-panel h2{font-size:18px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.panel-head h2{margin:0}.table-wrap{width:100%;overflow:auto}table{width:100%;border-collapse:collapse;font-size:11px;white-space:nowrap}th,td{text-align:left;padding:12px 10px;border-bottom:1px solid #edf0f5;vertical-align:top}th{font-size:10px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:#f9fbfe}td small{color:var(--muted)}.status{display:inline-block;background:#fff5dd;color:#865e00;padding:4px 8px;border-radius:20px;font-size:10px}.search-form{display:flex;gap:10px;margin-bottom:20px;max-width:700px}.search-form input{margin:0}.inline-status{display:contents}.inline-status select{min-width:105px;padding:7px;margin:0}.inline-form{display:inline}.link-button{border:0;background:none;color:var(--blue);cursor:pointer;font:inherit;font-size:11px}.admin-course-form{box-shadow:none;border:0;padding:0}.admin-course-form .form-row{grid-template-columns:repeat(3,1fr)}@media(max-width:900px){.nav-links{gap:13px}.hero-grid{gap:30px}.hero{padding:60px 0}.course-grid,.course-grid-all{grid-template-columns:repeat(2,1fr)}.form-layout,.contact-grid{gap:25px}.admin-sidebar{width:210px}.admin-main{padding:25px}.admin-stats{grid-template-columns:repeat(2,1fr)}}@media(max-width:680px){.container{width:min(100% - 30px,1160px)}.site-header{height:auto;min-height:72px}.nav-wrap{flex-wrap:wrap;padding:13px 0}.nav-toggle{display:block}.nav-links{display:none;flex-basis:100%;flex-direction:column;align-items:stretch;gap:0;padding:8px 0}.nav-links.open{display:flex}.nav-links a{padding:11px 4px}.hero{padding:48px 0}.hero-grid,.why-grid,.form-layout,.contact-grid{grid-template-columns:1fr}.hero-grid{gap:35px}.hero h1{font-size:39px}.hero-card{max-width:440px;width:100%;margin:auto}.hero-illustration{height:250px}.stats{grid-template-columns:repeat(2,1fr);gap:18px}.stats>div{border:0;padding:0}.section{padding:55px 0}.section-heading{align-items:start;flex-direction:column}.course-grid,.course-grid-all{grid-template-columns:1fr}.course-card p{min-height:0}.why-grid{gap:30px}.cta-inner{align-items:start;flex-direction:column}.page-hero{padding:48px 0}.form-intro{position:static}.form-card{padding:20px}.form-row{grid-template-columns:1fr;gap:0}.success-card{padding:30px 20px}.footer-grid{grid-template-columns:1fr;gap:25px}.admin-shell{display:block}.admin-sidebar{width:100%;min-height:auto;padding:14px}.admin-sidebar .brand{margin:0 6px 15px}.admin-sidebar>a:not(.brand){display:inline-block;padding:9px;font-size:11px}.admin-label{display:none}.admin-main{padding:18px 12px}.admin-top{align-items:flex-start;flex-direction:column}.admin-stats{grid-template-columns:repeat(2,1fr);gap:8px}.admin-stats>div{padding:14px}.admin-stats strong{font-size:24px}.admin-panel{padding:12px}.search-form{flex-wrap:wrap}.search-form input{flex:1;min-width:150px}.admin-course-form .form-row{grid-template-columns:1fr}}

/* Soptorshi Tec Institute brand refresh */
:root{--navy:#142c70;--blue:#0756a8;--cyan:#f4b31b;--ink:#19233d;--muted:#667085;--pale:#f5f8ff}
.top-contact{background:#142c70;color:#fff;font-size:11px}.top-contact-inner{display:flex;gap:22px;align-items:center;justify-content:space-between;padding:9px 0}.top-contact a{color:#fff;font-weight:700;white-space:nowrap}.site-header{height:auto;min-height:86px}.brand{gap:12px;color:#142c70;font-weight:800;letter-spacing:.01em}.brand-logo{width:62px;height:62px;object-fit:contain;border-radius:8px;background:#fff}.brand b{font-size:14px;letter-spacing:.03em}.brand b em{font-style:normal;color:#f0ad00}.brand small{font-size:10px;letter-spacing:0;color:#53627c}.brand-mark{display:none}.nav-links{gap:20px}.nav-links a{font-size:12px}.hero-pro{background:linear-gradient(120deg,#f4f8ff 0%,#fff 52%,#fff8e7 100%);padding:70px 0 65px}.hero-pro .hero-grid{grid-template-columns:1.05fr .95fr;gap:52px}.hero-pro h1{font-size:clamp(2.4rem,4.6vw,4.1rem);line-height:1.18}.hero-pro h1 span{display:block;color:#0756a8}.hero-pro .eyebrow{letter-spacing:.08em;color:#0756a8}.hero-pro .hero-copy>p{font-size:16px;color:#4b5870}.hero-photo-wrap{position:relative;min-width:0}.hero-photo-wrap>img{display:block;width:100%;height:420px;object-fit:cover;border-radius:26px;box-shadow:0 24px 60px #10234420}.hero-photo-badge{position:absolute;left:-25px;bottom:22px;display:flex;gap:12px;align-items:center;background:#fff;padding:12px 16px;border-radius:14px;box-shadow:0 12px 35px #10234420}.hero-photo-badge img{width:48px;height:48px;object-fit:contain}.hero-photo-badge strong,.hero-photo-badge small{display:block}.hero-photo-badge strong{font-size:12px;color:#142c70}.hero-photo-badge small{font-size:10px;color:#68758a}.hero-phone{font-size:12px;color:#56637b}.hero-phone a{color:#0756a8;font-weight:800}.stats strong{color:#142c70}.course-icon{background:#fff4cf;color:#142c70}.course-kicker{color:#b17b00}.gallery-preview{background:#fff}.gallery-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:18px}.gallery-tile{position:relative;display:block;overflow:hidden;border-radius:17px;min-height:220px;background:#e9eff8;margin:0}.gallery-tile img{width:100%;height:100%;min-height:220px;object-fit:cover;display:block;transition:transform .35s}.gallery-tile:hover img{transform:scale(1.04)}.gallery-tile span,.gallery-tile figcaption{position:absolute;left:0;right:0;bottom:0;padding:35px 18px 15px;background:linear-gradient(transparent,#07142de0);color:#fff;font-weight:700;font-size:14px}.gallery-note{font-size:11px;margin:15px 0 0}.brochure-band{background:linear-gradient(120deg,#10265f,#0756a8);color:#fff;padding:58px 0}.brochure-inner{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center}.brochure-inner h2{font-size:clamp(1.8rem,3vw,2.5rem)}.brochure-inner p{color:#e1e9f7;max-width:440px}.brochure-inner .eyebrow{color:#ffc83d}.brochure-thumbs{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:center}.brochure-thumbs img{display:block;width:100%;height:220px;object-fit:cover;object-position:top;border-radius:12px;background:#fff;box-shadow:0 14px 30px #0002}.btn-light{background:#f5b51b;color:#10265f;border-color:#f5b51b;font-weight:800}.gallery-page-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.gallery-page-grid .gallery-wide{grid-column:span 2}.gallery-page-grid .gallery-tile{min-height:260px}.gallery-page-grid .gallery-tile img{min-height:260px}.gallery-contact{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}.brochure-page-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.brochure-card{border:1px solid var(--line);border-radius:18px;padding:18px;background:#fff;box-shadow:var(--shadow)}.brochure-card img{width:100%;height:auto;display:block;border-radius:10px;border:1px solid #edf0f5}.brochure-card h2{font-size:22px;margin:18px 0 8px}.brochure-card p{font-size:13px}.brochure-footnote{font-size:12px;margin-top:25px}.brochure-footnote a{color:var(--blue);font-weight:800}.footer-brand .brand-logo{width:55px;height:55px}.footer-brand{color:#fff}.footer-brand small{color:#cbd5e4}
@media(max-width:900px){.top-contact-inner{flex-wrap:wrap;gap:8px 18px}.hero-pro .hero-grid{grid-template-columns:1fr 1fr;gap:28px}.hero-photo-wrap>img{height:360px}.gallery-page-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.top-contact-inner{padding:9px 0;align-items:flex-start;flex-direction:column}.top-contact-inner span{line-height:1.5}.site-header{min-height:74px}.brand-logo{width:48px;height:48px}.brand{font-size:13px}.brand b{font-size:12px}.brand small{font-size:9px}.hero-pro .hero-grid{grid-template-columns:1fr}.hero-pro{padding:44px 0}.hero-pro h1{font-size:36px}.hero-photo-wrap>img{height:280px}.hero-photo-badge{left:10px;bottom:12px}.gallery-grid,.gallery-page-grid,.brochure-page-grid,.brochure-inner{grid-template-columns:1fr}.gallery-page-grid .gallery-wide{grid-column:auto}.gallery-tile,.gallery-tile img,.gallery-page-grid .gallery-tile,.gallery-page-grid .gallery-tile img{min-height:230px}.brochure-thumbs img{height:180px}.brochure-inner{gap:25px}}