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:root{--bg-deep:#030610;--bg-dark:#070b18;--bg-card:#0f172a8c;--bg-card-hover:#1e293bbf;--bg-glass:#ffffff0a;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--text-dim:#64748b;--border-light:#ffffff14;--border-mid:#ffffff24;--border-hover:#ffffff40;--accent:#3b82f6;--accent-2:#06b6d4;--accent-3:#10b981;--accent-glow:#3b82f640;--gold:#fbbf24;--green:#10b981;--rose:#f43f5e;--gradient-1:linear-gradient(135deg, #3b82f6 0%, #06b6d4 50%, #10b981 100%);--gradient-2:linear-gradient(135deg, #3b82f6, #6366f1);--gradient-3:linear-gradient(135deg, #06b6d4, #10b981);--gradient-gold:linear-gradient(135deg, #fbbf24, #f59e0b);--gradient-hero:linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--radius-full:999px;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 8px 24px #0006;--shadow-lg:0 20px 50px #00000080;--shadow-glow:0 0 40px #3b82f640;--shadow-accent:0 8px 28px #3b82f659;--transition:.35s cubic-bezier(.4, 0, .2, 1);--transition-fast:.2s cubic-bezier(.4, 0, .2, 1);--transition-spring:.5s cubic-bezier(.34, 1.56, .64, 1);--max-w:1280px;--nav-h:72px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:clip}body{background:var(--bg-deep);color:var(--text-primary);background-image:radial-gradient(80% 60% at 20% 20%,#3b82f612,#0000 50%),radial-gradient(60% 50% at 80% 60%,#06b6d40d,#0000 50%),radial-gradient(50% 40% at 50% 100%,#10b9810a,#0000 40%);min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.65;overflow-x:clip}body.no-scroll{overflow:hidden}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}ul{list-style:none}::selection{background:var(--accent);color:#fff}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:linear-gradient(var(--accent), var(--accent-2));border-radius:10px}h1,h2,h3,h4,h5{letter-spacing:-.02em;color:var(--text-primary);font-weight:800;line-height:1.15}h1{letter-spacing:-.03em;font-size:clamp(2.4rem,5.5vw,4.2rem);font-weight:900}h2{font-size:clamp(2rem,3.8vw,3rem)}h3{font-size:clamp(1.3rem,2vw,1.7rem)}h4{font-size:1.15rem}p{color:var(--text-secondary)}.gradient-text{background:var(--gradient-hero);-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;background-clip:text;display:inline-block}.container{width:min(100%, var(--max-w));margin:0 auto;padding:0 22px}section{scroll-margin-top:var(--nav-h);padding:100px 0;position:relative}.eyebrow{border:1px solid var(--border-mid);border-radius:var(--radius-full);background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);text-transform:uppercase;letter-spacing:.12em;color:var(--accent);align-items:center;gap:10px;margin-bottom:18px;padding:7px 16px;font-size:.78rem;font-weight:700;display:inline-flex}.eyebrow:before{content:"";background:var(--accent);width:6px;height:6px;box-shadow:0 0 0 4px var(--accent-glow);border-radius:50%;animation:2s ease-in-out infinite pulse}@keyframes pulse{50%{box-shadow:0 0 0 8px #3b82f600}}.section-head{text-align:center;max-width:760px;margin:0 auto 64px}.section-head p{color:var(--text-muted);margin-top:14px;font-size:1.08rem}.btn{border-radius:var(--radius-sm);cursor:pointer;min-height:48px;transition:var(--transition);white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:10px;padding:13px 26px;font-size:.92rem;font-weight:700;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";opacity:0;background:linear-gradient(#ffffff2e,#0000);transition:opacity .3s;position:absolute;inset:0}.btn:hover:after{opacity:1}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--gradient-1);color:#fff;box-shadow:var(--shadow-accent)}.btn-primary:hover{box-shadow:0 14px 38px #3b82f680}.btn-secondary{color:#fff;border-color:var(--border-mid);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffff0f}.btn-secondary:hover{border-color:var(--border-hover);background:#ffffff1f}.btn-lg{border-radius:var(--radius-md);min-height:56px;padding:16px 32px;font-size:1rem}.glass-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);transition:var(--transition);position:relative;overflow:hidden}.glass-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md);transform:translateY(-6px)}.glass-card:after{content:"";border-radius:inherit;background:radial-gradient(500px circle at var(--cx,50%) var(--cy,50%), #3b82f61f, transparent 50%);opacity:0;pointer-events:none;z-index:1;transition:opacity .35s;position:absolute;inset:0}.glass-card:hover:after{opacity:1}.grid-bg{pointer-events:none;background-image:linear-gradient(#ffffff06 1px,#0000 1px),linear-gradient(90deg,#ffffff06 1px,#0000 1px);background-size:50px 50px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(#000 30%,#0000 75%);mask-image:radial-gradient(#000 30%,#0000 75%)}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-14px)}}.float{animation:6s ease-in-out infinite float}.float-delay-1{animation-delay:-1.5s}.float-delay-2{animation-delay:-3s}.float-delay-3{animation-delay:-4.5s}@keyframes float-rotate{0%,to{transform:translateY(0)rotate(0)}50%{transform:translateY(-12px)rotate(3deg)}}@keyframes orb-move{0%,to{transform:translate(0)scale(1)}25%{transform:translate(30px,-50px)scale(1.1)}50%{transform:translate(-20px,20px)scale(.9)}75%{transform:translate(50px,30px)scale(1.05)}}.glow-orb{filter:blur(80px);pointer-events:none;border-radius:50%;animation:20s ease-in-out infinite orb-move;position:absolute}.toast{z-index:300;background:var(--bg-dark);border:1px solid var(--accent);color:#fff;box-shadow:var(--shadow-lg);border-radius:12px;align-items:center;gap:10px;max-width:380px;padding:14px 20px;font-size:.9rem;font-weight:600;display:flex;position:fixed;bottom:24px;right:24px}.input-field{border:1px solid var(--border-light);border-radius:var(--radius-sm);color:#fff;width:100%;transition:var(--transition);background:#ffffff0a;outline:none;padding:14px 16px;font-size:.95rem}.input-field:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);background:#ffffff0f}.input-field::placeholder{color:var(--text-dim)}body.lang-bn,body.lang-bn h1,body.lang-bn h2,body.lang-bn h3,body.lang-bn h4,body.lang-bn p,body.lang-bn span,body.lang-bn button,body.lang-bn a,body.lang-bn li,body.lang-bn td,body.lang-bn label,body.lang-bn input::placeholder{font-family:Hind Siliguri,sans-serif!important}@media (max-width:768px){section{padding:70px 0}.container{padding:0 18px}:root{--nav-h:64px}}@media (max-width:480px){section{padding:50px 0}.container{padding:0 14px}}@supports (padding-bottom:env(safe-area-inset-bottom)){footer{padding-bottom:calc(28px + env(safe-area-inset-bottom))}}@media (max-width:768px){input,textarea,select{font-size:16px!important}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.overlay-section{z-index:1;position:relative}.glass-card-3d{-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-md);background:#0a0f1eb3;border:1px solid #ffffff14;transition:all .35s cubic-bezier(.4,0,.2,1)}.glass-card-3d:hover{background:#0f172ad9;border-color:#3b82f640;transform:translateY(-4px);box-shadow:0 20px 50px #0006,0 0 30px #3b82f614}.section-title{margin-bottom:16px;font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;line-height:1.2}.section-subtitle{color:var(--text-muted);max-width:560px;margin:0 auto;font-size:clamp(.9rem,1.3vw,1.05rem);line-height:1.7}.scroll-indicator{width:40px;height:40px;color:var(--text-muted);border:1px solid #fff3;border-radius:50%;justify-content:center;align-items:center;animation:2s ease-in-out infinite scrollBounce;display:flex}@keyframes scrollBounce{0%,to{opacity:.6;transform:translateY(0)}50%{opacity:1;transform:translateY(10px)}}@media (max-width:860px){.nav-desktop{display:none!important}.nav-mobile-btn{display:grid!important}}@media (max-width:768px){.footer-grid{grid-template-columns:1fr 1fr!important}}@media (max-width:480px){.footer-grid{grid-template-columns:1fr!important}}