:root{--page-bg:#0c1108;--page-text:#e8f6d4;--heading:#fff;--muted:#9bb583;--link:#a3e635;--btn-bg:#84cc16;--btn-text:#0c1108;--btn-hover:#65a30d;--accent:#4d7c0f;--dark:#141c0e;--soft:#1b2613;--light-bg:#f7fde9;--light-text:#1a2410;--border-dark:rgba(255,255,255,.14);--border-light:rgba(15,23,42,.12);--shadow:0 6px 18px rgba(0,0,0,.45);--radius:1.2rem;--radius-sm:.8rem;--font-body:"Noto Sans Bengali","Hind Siliguri",system-ui,sans-serif;--font-heading:"Hind Siliguri","Noto Sans Bengali",system-ui,sans-serif;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{font-family:var(--font-body);background:var(--page-bg);color:var(--page-text);line-height:1.7;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--heading);line-height:1.3;margin-bottom:.75rem;}
h1{font-size:clamp(1.8rem,3vw,2.6rem);}
h2{font-size:clamp(1.4rem,2.2vw,2rem);}
h3{font-size:clamp(1.1rem,1.5vw,1.4rem);}
p{margin-bottom:1rem;}
a{color:var(--link);text-decoration:none;transition:color .2s;}
a:hover{text-decoration:underline;}
img{max-width:100%;height:auto;display:block;}
.container{width:min(100%,1200px);margin:0 auto;padding:0 1.25rem;}
.narrow-content{max-width:900px;margin:0 auto;}
.faq-narrow{max-width:900px;margin:0 auto;}
.text-center{text-align:center;}
.mx-auto{margin-left:auto;margin-right:auto;}
.mb-4{margin-bottom:1.5rem;}
.mt-4{margin-top:1.5rem;}
.my-4{margin-top:1.5rem;margin-bottom:1.5rem;}
.w-100{width:100%;}

/* Surfaces */
.surface-dark{background:var(--dark);color:var(--page-text);border-color:var(--border-dark);}
.surface-soft{background:var(--soft);color:var(--page-text);border-color:var(--border-dark);}
.surface-page{background:var(--page-bg);color:var(--page-text);}
.surface-light{background:var(--light-bg);color:var(--light-text);}
.surface-light h1,.surface-light h2,.surface-light h3,.surface-light h4{color:var(--light-text);}
.surface-light a{color:var(--accent);}
.surface-accent{background:var(--accent);color:#fff;}
.surface-accent h1,.surface-accent h2,.surface-accent h3{color:#fff;}
.surface-accent a{color:#fff;}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.5rem;border-radius:2rem;font-weight:700;font-size:.95rem;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s;text-decoration:none !important;}
.btn-lg{padding:.75rem 2rem;font-size:1.05rem;}
.btn-sm{padding:.45rem 1.1rem;font-size:.85rem;}
.btn-brand{background:var(--btn-bg);color:var(--btn-text);box-shadow:0 0 14px rgba(132,204,22,.35);}
.btn-brand:hover{background:var(--btn-hover);transform:translateY(-2px);box-shadow:0 0 24px rgba(132,204,22,.55);}
.btn-ghost{background:transparent;color:var(--link);border:1px solid var(--link);}
.btn-ghost:hover{background:var(--link);color:var(--page-bg);transform:translateY(-2px);}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:var(--page-bg);border-bottom:1px solid rgba(163,230,53,.18);box-shadow:0 2px 12px rgba(0,0,0,.1);}
.header-inner{width:100%;max-width:none;padding:0 clamp(10px,1.2vw,20px);display:flex;align-items:center;gap:clamp(10px,1vw,18px);height:64px;}
.brand-wrap{flex:0 0 auto;margin-right:clamp(4px,.8vw,14px);}
.site-logo{display:block;width:auto;height:clamp(32px,3vw,42px);max-width:clamp(118px,10vw,168px);object-fit:contain;}
.primary-nav{flex:1 1 auto;min-width:0;display:flex;align-items:center;justify-content:center;flex-wrap:nowrap;gap:clamp(6px,.72vw,14px);white-space:nowrap;overflow:visible;}
.primary-nav .nav-link{flex:0 1 auto;min-width:0;padding:9px clamp(6px,.65vw,12px);font-size:clamp(13px,.84vw,15px);line-height:1;white-space:nowrap;color:var(--page-text);font-weight:500;transition:opacity .2s;text-decoration:none;}
.primary-nav .nav-link:hover,.primary-nav .nav-link.active{color:var(--link);opacity:.9;}
.header-actions{flex:0 0 auto;margin-left:auto;display:flex;align-items:center;justify-content:flex-end;gap:clamp(6px,.6vw,10px);white-space:nowrap;}
.nav-toggle{display:none;flex:0 0 40px;width:40px;height:40px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--border-dark);border-radius:.5rem;cursor:pointer;flex-direction:column;gap:4px;padding:10px;}
.hamburger-line{display:block;width:18px;height:2px;background:var(--page-text);border-radius:2px;transition:transform .3s;}
.mobile-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--dark);padding:1rem;flex-direction:column;gap:.5rem;border-bottom:1px solid var(--border-dark);z-index:999;}
.mobile-menu.open{display:flex;}
.mobile-menu a{display:block;padding:.75rem 1rem;color:var(--page-text);font-weight:500;border-radius:var(--radius-sm);transition:background .2s;}
.mobile-menu a:hover{background:var(--soft);text-decoration:none;}

@media(max-width:1180px){
.primary-nav{display:none;}
.nav-toggle{display:inline-flex;}
.header-inner{width:100%;max-width:none;padding-left:clamp(8px,2.4vw,14px);padding-right:clamp(8px,2.4vw,14px);justify-content:flex-start;gap:clamp(6px,1.8vw,10px);}
.brand-wrap{flex:0 1 auto;margin-right:0;}
.site-logo{height:clamp(30px,8vw,40px);max-width:clamp(104px,27vw,138px);}
.header-actions{margin-left:auto;flex:0 0 auto;gap:clamp(5px,1.6vw,8px);}
.header-actions .btn{min-height:40px;padding-inline:clamp(10px,2.6vw,14px);font-size:clamp(12px,3.2vw,14px);}
.nav-toggle{flex:0 0 40px;width:40px;height:40px;margin-left:2px;}
}
@media(max-width:375px){.header-inner{padding-left:8px;padding-right:8px;gap:6px;}.site-logo{max-width:104px;}.header-actions .btn{min-height:38px;padding-inline:9px;font-size:12px;}}

/* Sections */
.section-pad{padding:clamp(3rem,6vw,5rem) 0;}
.breadcrumb-section{padding:clamp(1.25rem,2vw,1.75rem) 0;}
.breadcrumb-section .breadcrumb-nav{padding-left:clamp(14rem,28vw,22rem);padding-right:1.25rem;}
.section-intro{max-width:700px;margin:0 auto 2rem;color:var(--muted);}

/* Hero */
.hero-section{position:relative;overflow:hidden;padding:clamp(2rem,4vw,4rem) 0 clamp(3rem,6vw,5rem);}
.hero-orb{position:absolute;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(132,204,22,.13)0%,transparent 70%);top:-80px;right:-60px;pointer-events:none;animation:orbFloat 7s ease-in-out infinite;}
@keyframes orbFloat{0%,100%{transform:translateY(0) scale(1);}50%{transform:translateY(28px) scale(1.04);}}
.hero-text{padding:2rem 0 1rem;}
.hero-title{font-size:clamp(1.85rem,2.65vw,2.65rem) !important;line-height:1.25 !important;margin-bottom:1.25rem;}
.hero-sub{max-width:700px;margin:0 auto 1.5rem;color:var(--muted);font-size:1.05rem;line-height:1.7;}
.hero-badges{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:1.5rem;}
.hero-cta,.cta-group{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1rem;}
.image-frame{border-radius:var(--radius);overflow:hidden;max-width:100%;}
.hero-media{max-width:1100px;}

/* Cards */
.card-grid{display:grid;gap:1.5rem;}
.cols-2{grid-template-columns:repeat(2,1fr);}
.cols-3{grid-template-columns:repeat(3,1fr);}
.cols-4{grid-template-columns:repeat(4,1fr);}
.cols-6{grid-template-columns:repeat(6,1fr);}
@media(max-width:991px){.cols-3,.cols-4{grid-template-columns:repeat(2,1fr);}.cols-6{grid-template-columns:repeat(3,1fr);}}
@media(max-width:575px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr;}.cols-6{grid-template-columns:repeat(2,1fr);}}
.feature-card,.payment-card,.step-card,.icon-card,.nav-card{border-radius:var(--radius);padding:1.5rem;transition:transform .25s,box-shadow .25s;border:1px solid var(--border-dark);box-shadow:var(--shadow);}
.feature-card:hover,.payment-card:hover,.nav-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.38);}
.icon-circle{display:inline-flex;align-items:center;justify-content:center;width:3rem;height:3rem;border-radius:50%;font-size:1.5rem;background:var(--btn-bg);color:var(--btn-text);flex-shrink:0;margin-bottom:.75rem;}
.card-img{border-radius:var(--radius-sm);overflow:hidden;margin-bottom:1rem;}
.stat-card{border-radius:var(--radius);padding:1.5rem;text-align:center;transition:transform .25s;border:1px solid var(--border-dark);box-shadow:var(--shadow);}
.stat-card:hover{transform:translateY(-5px);}
.stat-number{font-size:2.2rem;font-weight:800;line-height:1.1;margin-bottom:.5rem;}
.step-num{font-size:2.2rem;font-weight:900;line-height:1;margin-bottom:.5rem;color:var(--link);}
.nav-card{display:block;text-decoration:none !important;color:inherit;}
.nav-card i{font-size:1.5rem;margin-bottom:.5rem;display:block;color:var(--accent);}
.nav-card strong{display:block;margin-bottom:.25rem;}
.nav-card p{font-size:.9rem;color:var(--muted);margin:0;}

/* Split Layout */
.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;}
.split-layout.reverse{direction:rtl;}
.split-layout.reverse>*{direction:ltr;}
@media(max-width:767px){.split-layout{grid-template-columns:1fr;}.split-layout.reverse{direction:ltr;}}

/* Marquee */
.marquee-section{padding:1rem 0;}
.marquee-outer{overflow:hidden;position:relative;padding:.75rem 0;width:min(calc(100% - 2rem),1120px);max-width:1120px;margin:0 auto;border-radius:1rem;}
.marquee-outer::before,.marquee-outer::after{content:"";position:absolute;top:0;bottom:0;width:60px;z-index:2;}
.marquee-outer::before{left:0;background:linear-gradient(to right,var(--page-bg),transparent);}
.marquee-outer::after{right:0;background:linear-gradient(to left,var(--page-bg),transparent);}
.marquee-track{display:flex;gap:1rem;white-space:nowrap;animation:marqueeScroll 28s linear infinite;width:max-content;}
.marquee-track:hover{animation-play-state:paused;}
@keyframes marqueeScroll{0%{transform:translateX(0);}100%{transform:translateX(-50%);}}
.marquee-item{display:inline-flex;align-items:center;gap:.5rem;font-size:.9rem;font-weight:600;padding:.3rem .8rem;}

/* Badge */
.badge-pill{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .8rem;border-radius:999px;font-size:.85rem;font-weight:600;background:var(--page-text);color:var(--page-bg);border:1px solid var(--page-text);}

/* Table */
.table-wrap{border-radius:var(--radius);overflow-x:auto;padding:.5rem;border:1px solid var(--border-dark);}
table{width:100%;border-collapse:collapse;min-width:500px;}
th,td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--border-dark);}
th{font-weight:700;font-size:.9rem;text-transform:uppercase;letter-spacing:.03em;}

/* Accordion / FAQ */
.accordion{border-radius:var(--radius);overflow:hidden;}
.accordion-item{border-bottom:1px solid var(--border-dark);}
.accordion-item:last-child{border-bottom:0;}
.accordion-header{margin:0;}
.accordion-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:1rem 1.25rem;font-size:1rem;font-weight:600;color:var(--page-text);background:transparent;border:0;cursor:pointer;text-align:left;gap:.75rem;font-family:var(--font-heading);}
.accordion-btn::after{content:"";width:1em;height:1em;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:transform .3s;flex-shrink:0;}
.accordion-btn[aria-expanded="true"]::after{transform:rotate(-135deg);}
.accordion-panel{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 1.25rem;}
.accordion-panel.show{max-height:500px;padding:0 1.25rem 1rem;}
.accordion-panel p{margin:0;}

/* Notice */
.notice-card{display:flex;gap:1.5rem;padding:2rem;border-radius:var(--radius);border:1px solid var(--border-dark);}
.notice-icon{flex-shrink:0;font-size:2rem;}
.notice-body{flex:1;}
@media(max-width:575px){.notice-card{flex-direction:column;gap:1rem;}}

/* Auth Form */
.hero-register,.hero-login{background:#10180d;}
.auth-card{max-width:520px;margin:0 auto;padding:2.5rem;border-radius:var(--radius);border:1px solid var(--border-dark);}
.auth-form{margin:1.5rem 0;}
.form-group{margin-bottom:1.25rem;}
.form-group label{display:block;margin-bottom:.4rem;font-weight:600;font-size:.9rem;}
.form-control{display:block;width:100%;padding:.75rem 1rem;border-radius:var(--radius-sm);border:1px solid var(--border-dark);background:#fff;color:#1f2937;font-size:1rem;font-family:var(--font-body);}
.form-control:focus{outline:2px solid var(--btn-bg);border-color:var(--btn-bg);}
.auth-switch{text-align:center;margin-top:1rem;font-size:.9rem;}

/* Timeline */
.timeline{display:flex;flex-direction:column;gap:1.5rem;}
.timeline-item{display:flex;gap:1.25rem;align-items:flex-start;}
.timeline-num{flex-shrink:0;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--btn-bg);color:var(--btn-text);font-weight:900;font-size:1.3rem;}
.timeline-content{flex:1;}
.timeline-content h3{margin-bottom:.4rem;}

/* Breadcrumb */
.breadcrumb-nav{padding:.5rem 0;}
.breadcrumb{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:0;font-size:.85rem;}
.breadcrumb-item+.breadcrumb-item::before{content:"/";margin-right:.5rem;color:var(--muted);}
.breadcrumb-item a{color:var(--link);}
.breadcrumb-item.active{color:var(--muted);}

/* Footer */
.site-footer{padding:3rem 0 1.5rem;}
.footer-inner{display:grid;grid-template-columns:1.35fr repeat(4,1fr);gap:2rem;max-width:1400px;margin:0 auto;padding:0 1.25rem;}
.footer-logo{height:34px;width:auto;margin-bottom:.75rem;}
.footer-desc{font-size:.85rem;color:var(--muted);}
.footer-col h4{font-size:1rem;margin-bottom:.75rem;}
.footer-col ul{list-style:none;padding:0;}
.footer-col li{margin-bottom:.5rem;}
.footer-col a{color:var(--page-text);font-size:.9rem;}
.footer-col a:hover{color:var(--link);}
.footer-col p{font-size:.85rem;color:var(--muted);}
.footer-bottom{grid-column:1/-1;text-align:center;padding-top:1.5rem;border-top:1px solid var(--border-dark);font-size:.8rem;color:var(--muted);}
@media(max-width:767px){.footer-inner{grid-template-columns:1fr 1fr;}.footer-brand{grid-column:1/-1;}}
@media(max-width:480px){.footer-inner{grid-template-columns:1fr;}}

/* Back to top */
.back-top{position:fixed;bottom:2rem;right:2rem;z-index:999;border-radius:50%;width:3rem;height:3rem;font-size:1.2rem;opacity:0;pointer-events:none;transition:opacity .3s;}
.back-top.visible{opacity:1;pointer-events:auto;}

/* Utilities */
.img-fluid{max-width:100%;height:auto;}
.d-block{display:block;}
@media(max-width:575px){.hero-title{font-size:clamp(1.45rem,6.8vw,2rem) !important;}}
@media(max-width:767px){.breadcrumb-section .breadcrumb-nav{padding-left:1.25rem;}}