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@font-face{font-family:'Noto Sans Bengali';font-style:normal;font-display:swap;font-weight:600;src:url('/fonts/bengali-600.woff2') format('woff2');unicode-range:U+0951-0952,U+0964-0965,U+0980-09FE,U+1CD0,U+1CD2,U+1CD5-1CD6,U+1CD8,U+1CE1,U+1CEA,U+1CED,U+1CF2,U+1CF5-1CF7,U+200C-200D,U+20B9,U+25CC,U+A8F1;}
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:root{color-scheme:light;--bg:#fff;--ink:#182034;--muted:#667086;--line:#e5e9f0;--accent:#315bff;--tint:#edf2ff;--soft:#f7f9fc;--radius:20px;--heading:Inter,"Segoe UI",Arial,sans-serif;--shadow:0 18px 60px #2134540b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;font:16px/1.7 "Noto Sans Bengali",var(--body,Inter,"Segoe UI",Arial,sans-serif);background:var(--bg);color:var(--ink);overflow-x:hidden}h1,h2,h3,h4{font-family:"Noto Sans Bengali",var(--heading);line-height:1.15;letter-spacing:-.045em;margin:0 0 20px}h1{font-size:clamp(2.7rem,5.5vw,5rem);font-weight:650}h2{font-size:clamp(1.9rem,3.2vw,2.85rem);font-weight:600}h3{font-size:1.45rem;font-weight:600}h4{font-size:1rem;letter-spacing:-.01em}p{margin:0 0 20px;color:var(--muted)}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}img{max-width:100%;display:block}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}button,a,input,textarea,select,summary{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent)}button{color:inherit}a,button{touch-action:manipulation}hr{border:0;border-top:1px solid var(--line);margin:25px 0}.wrap{width:min(1240px,100% - 96px);margin:auto}.section{padding-block:96px}.section-top{padding-top:22px;padding-bottom:60px}.soft-section{background:var(--soft);border-block:1px solid #eef1f6}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:.75rem;font-weight:700;color:var(--accent);display:block;margin-bottom:20px}.lead{font-size:1.2rem;line-height:1.85}.text-link{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:.93rem}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:13px 22px;border-radius:10px;font-size:.91rem;font-weight:600;border:1px solid var(--line);background:white;line-height:1.5;transition:transform .2s,box-shadow .2s,background .2s}.button:hover{transform:translateY(-2px);box-shadow:0 8px 24px #284d9020}.primary{background:var(--accent);color:white;border-color:var(--accent)}.primary:hover{color:white}.secondary{background:white}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.brand{font-size:1.75rem;font-weight:800;letter-spacing:-.07em;line-height:1.2;white-space:nowrap}.brand span{color:var(--accent)}.brand img{max-height:42px;max-width:170px}.nav-wrap{width:min(1340px,100% - 80px);margin:auto;min-height:92px;display:flex;align-items:center;gap:35px;justify-content:space-between}#header{border-bottom:1px solid var(--line);background:var(--header-bg,#fffffff5);backdrop-filter:blur(16px);position:sticky;top:0;z-index:20}.nav-wrap nav{display:flex;gap:26px;align-items:center;flex-wrap:wrap;justify-content:center}.nav-wrap nav a{font-size:.86rem;font-weight:500;color:var(--muted);padding:5px 0;position:relative}.nav-wrap nav a.active{color:var(--accent)}.nav-wrap nav a.active:after{content:'';position:absolute;height:3px;width:15px;background:var(--accent);bottom:-9px;left:calc(50% - 7px);border-radius:5px}.nav-cta{font-size:.82rem;white-space:nowrap;padding:10px 15px}.menu-toggle{display:none;border:0;background:var(--tint);padding:5px 11px;border-radius:8px;font-size:1.3rem}.hero{padding-block:85px 100px;display:grid;grid-template-columns:1.35fr 1fr;gap:75px;align-items:center;min-height:660px}.hero h1{font-size:clamp(3rem,5.4vw,5rem);letter-spacing:-.063em;line-height:1.07;margin-bottom:24px}.hero-role{font-size:.95rem;color:var(--accent);font-weight:600}.intro{font-size:1.05rem;max-width:560px;line-height:1.85}.location{display:flex;align-items:center;gap:10px;margin-top:32px;font-size:.75rem;color:var(--muted);flex-wrap:wrap}.location-marker{font-size:1.3rem;color:var(--accent)}.divider{height:14px;width:1px;background:var(--line);margin:0 3px}.hero-aside{padding:20px 0 0;position:relative}.developer-card{background:#fff;border:1px solid #dce4f1;box-shadow:0 30px 65px #315bff14;border-radius:var(--radius);transform:rotate(-2deg);overflow:hidden}.code-top{padding:16px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;font:12px/1.4 Consolas,monospace;color:var(--muted);background:#fbfcff}.developer-card pre{padding:25px;margin:0;font:clamp(.8rem,1.1vw,.94rem)/2.05 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span{font-size:.8rem;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:36px}.section-heading h2{margin-bottom:0;max-width:720px}.section-heading>.text-link{white-space:nowrap;padding-bottom:5px}.projects-grid,.articles-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.project-card{min-width:0}.project-art{aspect-ratio:1.3;border:1px solid #14295708;display:flex;flex-direction:column;justify-content:space-between;padding:25px;border-radius:var(--radius);overflow:hidden;transition:transform .3s}.project-art:hover{transform:translateY(-5px)}.art-0{background:#e8efff;color:#31558c}.art-1{background:#e5f1f0;color:#286463}.art-2{background:#eeeafa;color:#6a548f}.project-art:has(img){padding:0}.project-art img{width:100%;height:100%;object-fit:cover}.art-top{font-size:.68rem;text-transform:uppercase;letter-spacing:.13em}.project-art strong{font-size:2.25rem;letter-spacing:-.06em;font-weight:650;line-height:1.1;overflow-wrap:anywhere}.art-bottom{font-size:.7rem;display:flex;justify-content:space-between;align-items:center;gap:10px}.art-bottom b{font-size:1.6rem;font-weight:400}.project-info{padding:24px 0}.meta{display:flex;gap:12px;justify-content:space-between;color:var(--muted);font-size:.76rem}.project-info h3{margin:13px 0}.project-info p{font-size:.9rem;line-height:1.8}.tags{display:flex;gap:7px;flex-wrap:wrap}.tags span{font-size:.71rem;background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:3px 8px;color:#626c80}.skill-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.skill-card{border:1px solid var(--line);padding:26px 22px;border-radius:var(--radius)}.index{font:13px Consolas,monospace;color:var(--accent)}.skill-card h3{margin:23px 0 18px;font-size:1.25rem}.skill-card .tags span{background:none;border:0;padding:2px 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28px;margin-left:5px;position:relative}.timeline:before{content:'';position:absolute;left:-6px;top:5px;width:10px;height:10px;border-radius:50%;background:var(--accent)}.timeline h3{margin:10px 0}.timeline h4{color:var(--muted);font-size:.93rem;font-weight:500}.timeline .prose p{font-size:.95rem}.resume-section .skill-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.certificate{max-width:300px;border-radius:12px;margin-block:16px}.contact-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:100px}.contact-info{margin-top:35px}.contact-info>a{font-size:1.2rem;font-weight:600;color:var(--accent);overflow-wrap:anywhere}.contact-info>p{margin-top:25px}.social-row{display:flex;gap:20px;flex-wrap:wrap}.contact-form{padding:35px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}label{display:block;font-size:.86rem;font-weight:600;color:#404d64;margin-bottom:20px}input,textarea,select{display:block;width:100%;padding:12px 14px;background:white;border:1px solid #d9dfeb;border-radius:9px;color:var(--ink);margin-top:8px;font-size:1rem;min-width:0}input:focus,textarea:focus,select:focus{border-color:var(--accent)}textarea{resize:vertical}::placeholder{color:#8892a5}small,.helper{font-size:.78rem;color:var(--muted);line-height:1.6}.form-status{font-size:.9rem;margin:15px 0}.trap{position:absolute;left:-9999px;visibility:hidden}.faq{max-width:850px}.faq details{border-bottom:1px solid var(--line);padding:22px 0}.faq summary{cursor:pointer;font-size:1.08rem;font-weight:600}.faq details p{padding-top:16px;margin:0}.detail-meta{justify-content:flex-start;margin:30px 0 20px}.project-hero{width:100%;max-height:600px;object-fit:cover;border-radius:var(--radius)}.case-study{max-width:930px}.case-study article{margin-bottom:55px}.gallery{display:grid;grid-template-columns:1fr 1fr;gap:24px}.gallery img{border-radius:14px}.article-heading{max-width:940px;padding-top:60px;padding-bottom:45px}.article-heading h1{font-size:clamp(2.5rem,4.7vw,4.3rem)}.byline{display:flex;gap:12px;align-items:center;font-size:.9rem;margin-top:28px}.avatar{width:38px;height:38px;background:var(--tint);color:var(--accent);display:grid;place-items:center;border-radius:50%;font-weight:700}.article-hero{max-height:520px;width:100%;object-fit:cover;border-radius:var(--radius)}.reading-layout{display:grid;grid-template-columns:200px minmax(0,760px);gap:65px;justify-content:center;padding-block:60px}.article-aside{padding-top:7px}.article-aside .button{font-size:.78rem;padding:10px 13px;margin-bottom:20px}.prose{overflow-wrap:anywhere}.prose p{font-size:1rem;line-height:1.95}.prose.large p{font-size:1.15rem}.prose h2,.prose h3,.prose h4{margin:40px 0 18px}.prose li{color:var(--muted);margin:8px 0}.prose pre{background:#142034;color:#d8e3f5;border-radius:12px;padding:24px;overflow:auto;font:14px/1.8 Consolas,monospace;max-width:100%}.prose code{font-family:Consolas,monospace;font-size:.9em}.prose p code{background:var(--tint);padding:3px 5px;border-radius:4px}.prose blockquote{margin:25px 0;padding:15px 25px;border-left:3px solid var(--accent);background:var(--tint);font-size:1.15rem;color:var(--ink)}.conversation{max-width:820px;padding-bottom:70px}.conversation h2{font-size:1.8rem}.article-end{padding-block:25px;margin-bottom:35px;border-block:1px solid var(--line)}.reaction-buttons{display:flex;gap:12px;flex-wrap:wrap}.reaction{border:1px solid var(--line);border-radius:30px;background:white;padding:9px 16px;font-size:.85rem}.reaction.selected{background:var(--tint);border-color:var(--accent);color:var(--accent)}.reaction b{margin-left:7px;font-size:.8rem}.comment{border-bottom:1px solid var(--line);padding:25px 0}.comment-meta{display:flex;gap:15px;align-items:center;font-size:.9rem;margin-bottom:14px}.comment-meta time{font-size:.75rem;color:var(--muted)}.author-reply{margin:20px 0 0 20px;padding:20px 25px;background:var(--soft);border-left:2px solid var(--accent);border-radius:0 10px 10px 0}.author-reply .eyebrow{font-size:.67rem;margin-bottom:10px}.author-reply p{margin-bottom:0}.comment-list{margin-bottom:35px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.page-pager{padding:35px 0;margin-top:35px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);touch-action:pan-y}.page-pager>span{font-size:.78rem;color:var(--muted)}.page-pager>div{display:flex;gap:35px}.page-pager a{font-size:.9rem;font-weight:600}.custom-page{max-width:950px}.custom-page>.prose{padding-block:30px}.skip{position:fixed;top:-100px;left:15px;z-index:100;background:white;padding:10px;border:1px solid var(--accent)}.skip:focus{top:10px}.loading{padding:130px 25px;text-align:center}.will-reveal{opacity:0;transform:translateY(22px);transition:opacity .65s,transform .65s}.will-reveal.revealed{opacity:1;transform:none}body[data-motion=off] *,body[data-motion=off] 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@media(max-width:520px){.wrap{width:calc(100% - 40px)}.nav-wrap{width:calc(100% - 40px)}.hero h1{font-size:2.85rem}.hero-role{font-size:.86rem}.intro{font-size:1rem}.hero .actions .button{padding:12px 17px;font-size:.85rem}.hero .location{gap:7px}.hero-aside{padding-top:0}.now-card{margin-left:15px}.projects-grid,.articles-grid{grid-template-columns:1fr}.project-art{aspect-ratio:1.5;padding:25px}.project-art strong{font-size:2.3rem}.section-heading{flex-direction:column;gap:18px}.section-heading .eyebrow{margin-bottom:12px}.skill-grid{gap:12px}.skill-card{padding:21px 16px}.skill-card h3{font-size:1.1rem}.page-head h1{font-size:2.4rem}.page-head>p{font-size:1rem}.contact-form{padding:22px}.form-grid{grid-template-columns:1fr;gap:0}.page-pager{gap:18px;align-items:start;flex-direction:column}.page-pager>div{width:100%;justify-content:space-between}.footer-bottom{gap:20px;align-items:start}.footer-links{gap:15px}.article-heading h1{font-size:2.25rem}.article-heading .lead{font-size:1.05rem}.reaction{font-size:.75rem;padding:8px 12px}.reaction-buttons{gap:7px}.resume-section .skill-grid{grid-template-columns:1fr}.gallery{grid-template-columns:1fr}.comment-meta{flex-wrap:wrap}.author-reply{margin-left:8px;padding:17px}.article-card h3{font-size:1.5rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.will-reveal{opacity:1;transform:none}}

/* Motion layer: preserves the existing layout and visual identity while adding interaction polish. */
.site-loader{position:fixed;inset:0;z-index:9999;display:grid;place-content:center;justify-items:center;gap:18px;background:#fff;color:var(--ink);opacity:1;visibility:visible;transition:opacity .55s cubic-bezier(.2,.8,.2,1),visibility .55s}.site-loader.is-done{opacity:0;visibility:hidden;pointer-events:none}.loader-mark{font:800 clamp(2.6rem,6vw,4.4rem)/1 var(--heading);letter-spacing:-.08em;animation:loaderMark 1.2s cubic-bezier(.2,.8,.2,1) infinite alternate}.loader-mark span{color:var(--accent)}.loader-track{width:min(190px,46vw);height:3px;overflow:hidden;background:var(--tint);border-radius:999px}.loader-track i{display:block;width:48%;height:100%;background:var(--accent);border-radius:inherit;animation:loaderTrack 1.05s cubic-bezier(.65,0,.35,1) infinite}.loader-copy{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700}.route-loading::before{content:'';position:fixed;z-index:9998;top:0;left:0;width:38%;height:2px;background:var(--accent);box-shadow:0 0 18px color-mix(in srgb,var(--accent) 48%,transparent);animation:routeProgress .75s cubic-bezier(.2,.8,.2,1) infinite}.will-reveal{transition-delay:var(--reveal-delay,0ms)}.motion-media{opacity:.01;transform:scale(1.018);transition:opacity .72s ease var(--media-delay,0ms),transform 1.05s cubic-bezier(.2,.8,.2,1) var(--media-delay,0ms)}.motion-media.media-ready{opacity:1;transform:scale(1)}
@media(hover:hover) and (pointer:fine){.button,.text-link,.project-card,.service-card,.skill-card,.article-card,.info-card,.cta-panel,.reaction{transition:transform .28s cubic-bezier(.2,.8,.2,1),box-shadow .28s ease,border-color .28s ease,background-color .28s ease}.button:hover{transform:translateY(-2px)}.project-card:hover,.service-card:hover,.skill-card:hover,.article-card:hover{transform:translateY(-5px)}.project-card:hover .project-art img,.article-card:hover .article-cover{transform:scale(1.025)}.project-art img,.article-cover{transition:transform .65s cubic-bezier(.2,.8,.2,1)}}
@keyframes loaderMark{from{transform:translateY(2px) scale(.985);opacity:.78}to{transform:translateY(-3px) scale(1.015);opacity:1}}@keyframes loaderTrack{0%{transform:translateX(-115%)}55%{transform:translateX(90%)}100%{transform:translateX(235%)}}@keyframes routeProgress{from{transform:translateX(-120%)}to{transform:translateX(330%)}}
@media(prefers-reduced-motion:reduce){.site-loader,.motion-media{transition:none!important}.loader-mark,.loader-track i,.route-loading::before{animation:none!important}.motion-media{opacity:1!important;transform:none!important}}
.motion-tilt{transition:transform .38s cubic-bezier(.2,.8,.2,1)!important;transform-style:preserve-3d;will-change:transform}


/* Visitor experience layer */
.visitor-tools{position:fixed;right:18px;bottom:18px;z-index:70;display:flex;gap:8px;align-items:flex-end}.visitor-tools>button{width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:color-mix(in srgb,var(--surface,#fff) 92%,transparent);color:var(--ink);box-shadow:var(--shadow);backdrop-filter:blur(14px);font-weight:700}.visitor-tools>button:hover{transform:translateY(-2px)}.visitor-panel{position:absolute;right:0;bottom:52px;width:min(320px,calc(100vw - 36px));padding:14px;background:color-mix(in srgb,var(--surface,#fff) 96%,transparent);border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 70px #0002;backdrop-filter:blur(18px)}.visitor-panel label{font-size:.72rem;color:var(--muted);display:block;margin-bottom:8px}.visitor-panel select{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--surface,#fff);color:var(--ink)}.visitor-panel .tool-row{display:flex;gap:8px;margin-top:10px}.visitor-panel .tool-row button,.visitor-panel .tool-row a{flex:1;padding:9px 10px;border-radius:9px;border:1px solid var(--line);background:var(--surface,#fff);font-size:.76rem;text-align:center}.visitor-panel[hidden]{display:none}
.special-event{position:relative;z-index:18;margin:12px auto 0;width:min(1240px,calc(100% - 96px));border:1px solid color-mix(in srgb,var(--accent) 24%,var(--line));border-radius:16px;background:linear-gradient(120deg,color-mix(in srgb,var(--tint) 85%,var(--surface,#fff)),var(--surface,#fff));overflow:hidden;box-shadow:0 12px 35px #1e3a8a0b}.special-event-inner{min-height:76px;padding:15px 56px 15px 20px;display:flex;gap:14px;align-items:center;position:relative;z-index:2}.special-event-emoji{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:var(--surface,#fff);font-size:1.65rem;box-shadow:0 8px 24px #0001}.special-event-copy strong{display:block;font-size:.94rem}.special-event-copy span{display:block;color:var(--muted);font-size:.78rem}.special-event-close{position:absolute;right:14px;top:14px;border:0;background:transparent;color:var(--muted);font-size:1.1rem;z-index:4}.special-event[data-style="birthday"]{background:linear-gradient(120deg,#fff0f7,#eef2ff)}.special-event[data-style="national"]{background:linear-gradient(120deg,#f1fff4,#fff)}.special-event[data-style="celebration"]{background:linear-gradient(120deg,var(--tint),color-mix(in srgb,var(--tint) 35%,#fff))}.event-spark{position:absolute;width:8px;height:8px;border-radius:2px;background:var(--accent);opacity:.4;animation:eventFloat 4.8s ease-in-out infinite;z-index:1}.event-spark:nth-child(2n){border-radius:50%;background:#ffb84d}.event-spark:nth-child(3n){background:#ef5da8}.event-spark:nth-child(4n){background:#2fb67c}
.site-pet{position:fixed;left:18px;bottom:14px;z-index:66;width:76px;height:76px;display:grid;place-items:end center;animation:petRoam 28s ease-in-out infinite alternate;filter:drop-shadow(0 8px 10px #0002);user-select:none;pointer-events:auto}.site-pet button{border:0;background:transparent;font-size:2.8rem;line-height:1;cursor:pointer;transform-origin:50% 100%;animation:petStep .72s ease-in-out infinite alternate;padding:0}.site-pet.pet-play button{animation:petPlay .9s cubic-bezier(.2,.8,.2,1)}.pet-bubble{position:absolute;left:52px;bottom:58px;min-width:170px;max-width:min(280px,60vw);padding:10px 12px;border:1px solid var(--line);border-radius:14px 14px 14px 4px;background:var(--surface,#fff);box-shadow:var(--shadow);font-size:.72rem;color:var(--ink);opacity:0;transform:translateY(8px) scale(.97);pointer-events:none;transition:.24s}.pet-bubble.show{opacity:1;transform:none}.pet-name{display:block;color:var(--accent);font-size:.62rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin-bottom:2px}.pet-dismiss{position:absolute;right:-6px;top:-6px;width:20px;height:20px;border:1px solid var(--line)!important;border-radius:50%!important;background:var(--surface,#fff)!important;color:var(--muted)!important;font-size:.65rem!important;display:grid;place-items:center;animation:none!important}
@keyframes eventFloat{0%,100%{transform:translateY(0) rotate(0);opacity:.18}50%{transform:translateY(-18px) rotate(120deg);opacity:.62}}@keyframes petRoam{0%{transform:translateX(0)}100%{transform:translateX(min(46vw,520px))}}@keyframes petStep{from{transform:translateY(0) rotate(-3deg)}to{transform:translateY(-4px) rotate(3deg)}}@keyframes petPlay{0%{transform:translateY(0) rotate(0)}40%{transform:translateY(-18px) rotate(-12deg) scale(1.08)}70%{transform:translateY(-4px) rotate(12deg)}100%{transform:none}}
@media(max-width:780px){.special-event{width:calc(100% - 40px)}.special-event-inner{padding-left:14px}.site-pet{left:8px;bottom:8px;animation-name:petRoamMobile}.visitor-tools{right:10px;bottom:10px}@keyframes petRoamMobile{0%{transform:translateX(0)}100%{transform:translateX(min(25vw,120px))}}}
@media(prefers-reduced-motion:reduce){.site-pet,.site-pet button,.event-spark{animation:none!important}}