/* =====================================================================
   Devkit Bangladesh - clean light/dark design. Edit colors and fonts here.
   Bangla: add text with class="bn" (or lang="bn") and Hind Siliguri is used.
   ===================================================================== */
:root{
  --brand:#34a853; --brand-d:#1f7a3a; --amber:#ffb703;
  --bg:#ffffff; --bg2:#f5f8f6; --surface:#ffffff; --text:#0e1a13; --muted:#5a6b61; --line:#e4ebe6; --shadow:0 18px 40px rgba(14,26,19,.08);
  --head:'Space Grotesk','Hind Siliguri',system-ui,sans-serif;
  --body:'Inter','Hind Siliguri',system-ui,sans-serif;
  --hdr:84px;
}
[data-theme=dark]{--bg:#09110c;--bg2:#0e1812;--surface:#111d16;--text:#eaf3ec;--muted:#9bb0a2;--line:#1e2f24;--shadow:0 18px 40px rgba(0,0,0,.4);color-scheme:dark}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--hdr)}
body{font:400 1.0625rem/1.7 var(--body);color:var(--text);background:var(--bg);overflow-x:hidden;transition:background .3s,color .3s}
body.lock{overflow:hidden}
img{max-width:100%;height:auto;display:block}a{color:inherit}
h1,h2,h3,h4{font-family:var(--head);line-height:1.12;letter-spacing:-.02em}
.bn,[lang=bn]{font-family:'Hind Siliguri',var(--body)}
.wrap{width:min(1200px,92%);margin-inline:auto}
.skip{position:absolute;left:-999px;background:var(--amber);color:#000;padding:.5rem 1rem;z-index:999}.skip:focus{left:1rem;top:1rem}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand);z-index:1100}
.muted{color:var(--muted)}
.logo-d{display:none}[data-theme=dark] .logo-l{display:none}[data-theme=dark] .logo-d{display:block}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.55rem;min-height:48px;padding:.7rem 1.5rem;border-radius:12px;background:var(--brand);color:#fff;font-weight:600;text-decoration:none;border:2px solid var(--brand);cursor:pointer;font-family:var(--body);font-size:1rem;transition:transform .2s,background .2s,box-shadow .2s}
.btn:hover{background:var(--brand-d);border-color:var(--brand-d);transform:translateY(-2px);box-shadow:0 10px 24px rgba(52,168,83,.3)}
.btn i{transition:transform .2s}.btn:hover i{transform:translateX(3px)}
.btn-line{background:transparent;color:var(--text);border-color:var(--line)}.btn-line:hover{background:var(--bg2);color:var(--text);border-color:var(--brand);box-shadow:none}
.btn-sm{min-height:42px;padding:.45rem 1.1rem;font-size:.95rem}
.row-btns{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.icon-btn{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:border-color .2s}
.icon-btn:hover{border-color:var(--brand)}
.icon-btn .fa-sun{display:none}[data-theme=dark] .icon-btn .fa-sun{display:block}[data-theme=dark] .icon-btn .fa-moon{display:none}

/* header: flat, full width */
.hdr{position:sticky;top:0;z-index:1000;background:var(--bg);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.hdr.sc{box-shadow:0 6px 24px rgba(14,26,19,.07)}
.hdr-in{height:var(--hdr);display:flex;align-items:center;gap:1rem}
.brand{margin-right:auto}.brand img{height:30px;width:auto}
#menu{display:flex;align-items:center;gap:1.7rem}
#menu a:not(.btn){text-decoration:none;font-weight:500;font-size:.98rem;color:var(--muted);position:relative;padding:.3rem 0;transition:color .2s}
#menu a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:100%;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s}
#menu a:not(.btn):hover,#menu a.act{color:var(--text)}#menu a:not(.btn):hover::after,#menu a.act::after{transform:scaleX(1)}
.menu-cta{display:none}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative;z-index:1010}
.burger span{display:block;width:24px;height:2px;background:var(--text);margin:6px auto;transition:transform .25s}
.burger[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}.burger[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(3rem,7vw,6rem) 0 7rem;
  background-image:radial-gradient(circle at 85% 10%,rgba(52,168,83,.12),transparent 45%),linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:auto,48px 48px,48px 48px;background-position:0 0,-1px -1px,-1px -1px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;position:relative}
.chip{display:inline-flex;gap:.5rem;align-items:center;padding:.4rem 1rem;border:1px solid var(--line);background:var(--surface);border-radius:999px;font-size:.88rem;font-weight:500;margin-bottom:1.4rem}.chip i{color:var(--brand)}
.hero h1{font-size:clamp(2.3rem,4.5vw,3.9rem)}
.w{display:inline-block}.grad{background:linear-gradient(90deg,var(--brand),#7fd68f);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{max-width:34em;color:var(--muted);font-size:1.15rem;margin-top:1.3rem}
.trust{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;margin-top:1.8rem;color:var(--muted);font-size:.95rem}.trust i{color:var(--brand);margin-right:.3rem}
.scope{background:#06130b;border:1px solid rgba(52,168,83,.5);border-radius:20px;padding:1rem;box-shadow:var(--shadow),0 0 0 8px rgba(52,168,83,.06)}
.scope-top,.scope-bot{display:flex;justify-content:space-between;align-items:center;gap:.6rem;flex-wrap:wrap;color:#8fd3a3;font:500 .78rem var(--head);letter-spacing:.08em}
.scope-top{margin-bottom:.7rem}.scope-bot{margin-top:.7rem;color:#cfe0d4}
.tabs{display:flex;gap:.3rem;flex-wrap:wrap}.tabs button{background:transparent;color:#cfe0d4;border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:.3rem .8rem;font:500 .78rem var(--body);cursor:pointer;min-height:34px}
.tabs button.on{background:var(--brand);border-color:var(--brand);color:#fff}
#scope{width:100%;height:300px;display:block;border-radius:10px;background:#04100a}
.scope-bot input{accent-color:var(--brand);vertical-align:middle;width:110px}
.strip{position:absolute;left:0;bottom:0;width:100%;height:90px;opacity:.7;pointer-events:none}
.marq{background:var(--brand);color:#fff;overflow:hidden;white-space:nowrap;font:500 1rem var(--head);padding:.75rem 0}
.marq div{display:inline-block;animation:slide 34s linear infinite}@keyframes slide{to{transform:translateX(-50%)}}

/* sections */
.sec{padding:clamp(4rem,8vw,7rem) 0}.alt{background:var(--bg2)}
.eyebrow{color:var(--brand-d);font:600 .85rem var(--head);letter-spacing:.14em;text-transform:uppercase;margin-bottom:.8rem}[data-theme=dark] .eyebrow{color:var(--brand)}
h2{font-size:clamp(1.9rem,3.8vw,3rem);max-width:18em}
.head{display:flex;justify-content:space-between;align-items:end;gap:1.5rem;flex-wrap:wrap;margin-bottom:2.8rem}.head.center{justify-content:center;text-align:center}.head.center h2{margin-inline:auto}
.two{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.about-img{position:relative;border-radius:24px;overflow:hidden;aspect-ratio:4/4.4;background:var(--bg2)}
.about-img img{width:100%;height:112%;object-fit:cover}
.float-chip{position:absolute;left:1rem;bottom:1rem;background:var(--surface);padding:.6rem 1.1rem;border-radius:999px;font-weight:600;box-shadow:var(--shadow)}.float-chip i{color:var(--amber);margin-right:.4rem}
.two h2+.muted{margin-top:1.1rem}
.atabs{display:flex;gap:.4rem;margin-top:1.6rem;border-bottom:1px solid var(--line)}
.atabs button{background:none;border:0;padding:.7rem 1.1rem;font:600 .98rem var(--body);color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;min-height:44px}
.atabs button.on{color:var(--text);border-color:var(--brand)}
.apanes{display:grid;margin-top:1rem}.apanes p{grid-area:1/1;opacity:0;transform:translateY(8px);transition:all .35s;pointer-events:none;font-size:1.1rem}.apanes p.on{opacity:1;transform:none;pointer-events:auto}
.who{display:grid;grid-template-columns:repeat(2,1fr);gap:.9rem;margin-top:2rem}
.who div{display:grid;grid-template-columns:auto 1fr;column-gap:.9rem;align-items:center;padding:1rem;border:1px solid var(--line);border-radius:16px;background:var(--surface);transition:transform .25s,border-color .25s}
.who div:hover{transform:translateY(-3px);border-color:var(--brand)}
.who i{grid-row:span 2;width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:rgba(52,168,83,.12);color:var(--brand)}.who b{font-family:var(--head)}.who span{color:var(--muted);font-size:.9rem}

/* bento services */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem}
.bcard{position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:1.7rem;display:flex;flex-direction:column;gap:.5rem;min-height:250px;transition:transform .3s,border-color .3s,box-shadow .3s;isolation:isolate}
.bcard.big{grid-column:span 2}
.bcard::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(52,168,83,.16),transparent 55%);opacity:0;transition:opacity .3s}
.bcard::after{content:"";position:absolute;inset:0;z-index:-2;background:var(--img) center/cover;opacity:0;transition:opacity .4s}
.bcard:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:var(--shadow)}.bcard:hover::before{opacity:1}.bcard.big:hover::after{opacity:.1}
.bcard>i{width:52px;height:52px;display:grid;place-items:center;border-radius:14px;background:rgba(52,168,83,.12);color:var(--brand);font-size:1.3rem;margin-bottom:auto;transition:transform .4s,background .3s,color .3s}
.bcard:hover>i{transform:rotate(-8deg) scale(1.08);background:var(--brand);color:#fff}
.bcard h3{font-size:1.35rem;margin-top:1.5rem}.bcard p{color:var(--muted)}
.bcard a{margin-top:.6rem;font-weight:600;color:var(--brand-d);text-decoration:none}[data-theme=dark] .bcard a{color:var(--brand)}.bcard a i{transition:transform .2s}.bcard a:hover i{transform:translateX(4px)}

/* process */
.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;position:relative}
.pline{position:absolute;top:26px;left:6%;right:6%;height:3px;background:var(--line);border-radius:3px}.pline i{display:block;height:100%;width:100%;background:var(--brand);transform:scaleX(0);transform-origin:left;border-radius:3px}
.steps li{position:relative;text-align:center;padding:0 .5rem}
.steps span{display:grid;place-items:center;width:54px;height:54px;margin:0 auto 1.2rem;border-radius:50%;background:var(--surface);border:2px solid var(--line);font:700 1.15rem var(--head);transition:all .4s;position:relative;z-index:1}
.steps li.on span{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 0 0 8px rgba(52,168,83,.15)}
.steps h3{font-size:1.25rem;margin-bottom:.3rem}.steps p{color:var(--muted)}

/* products slider */
.nav-arrows{display:flex;gap:.5rem;align-items:center}
.nav-arrows button{width:46px;height:46px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;transition:all .2s}
.nav-arrows button:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.pswiper{overflow:hidden;padding:.4rem .2rem 1.5rem}.pswiper .swiper-slide{height:auto}
.pcard{display:block;height:100%;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:1rem;transition:transform .3s,border-color .3s,box-shadow .3s}
.pcard:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:var(--shadow)}
.ph{aspect-ratio:1;border-radius:14px;overflow:hidden;margin-bottom:1rem;background:var(--bg2)}.ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.pcard:hover .ph img{transform:scale(1.08)}
.tag{display:inline-block;background:rgba(52,168,83,.12);color:var(--brand-d);font:600 .78rem var(--body);padding:.15rem .7rem;border-radius:999px}[data-theme=dark] .tag{color:var(--brand)}
.pcard h3{font-size:1.15rem;margin:.5rem 0 .2rem}.pcard p{color:var(--muted);font-size:.96rem}.pcard b{display:inline-block;margin-top:.7rem;color:var(--brand-d)}[data-theme=dark] .pcard b{color:var(--brand)}.pcard b i{transition:transform .2s}.pcard:hover b i{transform:translateX(5px)}

/* gallery */
.filter{display:flex;gap:.4rem;flex-wrap:wrap}.filter button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:.4rem 1.1rem;font:500 .95rem var(--body);min-height:42px;cursor:pointer;transition:all .25s}
.filter button.on,.filter button:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.gal{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;grid-auto-flow:dense;gap:14px}
.gi{position:relative;overflow:hidden;border-radius:18px;display:block;background:var(--bg2);transition:opacity .35s,transform .35s}.gi.t{grid-row:span 2}.gi.w{grid-column:span 2}
.gi img{width:100%;height:100%;object-fit:cover;transition:transform .7s}.gi:hover img{transform:scale(1.1)}
.gi span{position:absolute;inset:auto 0 0 0;padding:2.5rem 1rem 1rem;color:#fff;font:600 1rem var(--head);background:linear-gradient(transparent,rgba(9,17,12,.85));transform:translateY(60%);opacity:0;transition:all .35s}
.gi span em{display:block;font:500 .75rem var(--body);color:#9be2b0;font-style:normal}.gi:hover span,.gi:focus-visible span{transform:none;opacity:1}
.gi.off{opacity:0;transform:scale(.85);pointer-events:none}.gi.pop{animation:pop .45s ease}@keyframes pop{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:none}}

/* testimonials */
.tswiper{overflow:hidden;padding-bottom:3rem}.tswiper .swiper-slide{height:auto}
.tswiper blockquote{margin:0;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:2rem;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}
.tswiper blockquote:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tswiper blockquote>i{color:var(--brand);font-size:1.6rem;margin-bottom:1rem}.tswiper blockquote p{flex:1;font-size:1.08rem}
.tswiper footer{display:flex;align-items:center;gap:.8rem;margin-top:1.4rem}.tswiper footer img{width:52px;height:52px;border-radius:50%;object-fit:cover}
.tswiper footer b{display:block;font-family:var(--head)}.tswiper footer span{color:var(--muted);font-size:.9rem}
.swiper-pagination-bullet{background:var(--muted)!important}.swiper-pagination-bullet-active{background:var(--brand)!important}

/* contact */
#contact{padding-bottom:clamp(4rem,8vw,7rem)}
.cbox{display:grid;grid-template-columns:1fr 1fr;gap:3rem;border:1px solid var(--line);background:var(--bg2);border-radius:28px;padding:clamp(1.5rem,5vw,3.5rem)}
.clist{list-style:none;padding:0;margin-top:1.6rem;display:grid;gap:.9rem}.clist li{display:flex;align-items:center;gap:.9rem}.clist i{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:rgba(52,168,83,.12);color:var(--brand)}.clist a{text-decoration:none;font-weight:500}.clist a:hover{color:var(--brand)}
.cform{display:grid;gap:1rem;align-content:start}.cform label{display:grid;gap:.4rem;font-weight:500;font-size:.95rem}
.cform input,.cform select,.cform textarea{font:400 1rem var(--body);padding:.8rem 1rem;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);min-height:48px}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(52,168,83,.15)}

/* footer */
.ftr{border-top:1px solid var(--line);background:var(--bg2);padding-top:4rem}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:2.5rem}
.fgrid img{height:28px;width:auto;margin-bottom:1rem}.fgrid p{color:var(--muted);max-width:22em}
.fgrid h4{font-size:1rem;margin-bottom:1rem}.fgrid nav,.fgrid>div:last-child{display:flex;flex-direction:column;gap:.55rem}
.fgrid a,.fgrid span{color:var(--muted);text-decoration:none;transition:color .2s}.fgrid a:hover{color:var(--brand)}
.social{display:flex;gap:.5rem;margin-top:1.2rem}.social a{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text)}.social a:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.fbar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;margin-top:3rem;padding:1.4rem 0;border-top:1px solid var(--line);color:var(--muted);font-size:.93rem}.fbar a{text-decoration:none;color:var(--text);font-weight:500}.fbar a:hover{color:var(--brand)}

/* reveal */
.js .rv{opacity:0;transform:translateY(28px)}

/* responsive */
@media(max-width:1020px){
  .hero-grid,.two,.cbox{grid-template-columns:1fr}.bento{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:2.5rem}.pline{display:none}.gal{grid-template-columns:repeat(2,1fr)}.fgrid{grid-template-columns:1fr 1fr}
  .hdr-cta{display:none}.burger{display:block}
  #menu{position:fixed;inset:0;background:var(--bg);flex-direction:column;justify-content:center;align-items:flex-start;gap:1.2rem;padding:2rem 10%;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;z-index:1005}
  #menu.open{opacity:1;visibility:visible}#menu a:not(.btn){font:500 1.9rem var(--head);color:var(--text)}.menu-cta{display:inline-flex}
}
@media(max-width:600px){
  :root{--hdr:72px}.bento,.steps,.who,.fgrid{grid-template-columns:1fr}.bcard.big{grid-column:auto}.bcard{min-height:200px}
  .gal{grid-auto-rows:150px}.row-btns .btn{flex:1 1 100%;justify-content:center}.hero{padding-bottom:6rem}#scope{height:230px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}html{scroll-behavior:auto}.js .rv{opacity:1;transform:none}}
h2+.muted,.cbox h2+p{margin-top:1rem}
.bcard>i{margin-bottom:0}.bcard h3{margin-top:auto;padding-top:1.5rem}

/* form: centered button, status, honeypot */
.btn{justify-content:center}
.cform .btn{width:100%}
.cform .btn[disabled]{opacity:.7;cursor:wait}
.cform input:user-invalid,.cform textarea:user-invalid{border-color:#d93025}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
.fstatus{min-height:1.4em;font-weight:500;font-size:.95rem}.fstatus.ok{color:var(--brand-d)}[data-theme=dark] .fstatus.ok{color:var(--brand)}.fstatus.err{color:#d93025}