/* r777bd-bd.net stylesheet - original visual system, bn-BD */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Noto Sans Bengali",sans-serif;
  background:#0a1226;
  color:#e8ecf4;
  line-height:1.65;
  font-size:16px;
}
img{max-width:100%;height:auto;display:block;border-radius:14px}
a{color:#ffd166;text-decoration:none}
a:hover{color:#ffe49a}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
h1,h2,h3,h4{font-family:inherit;color:#fff;line-height:1.25;margin:0 0 16px}
h1{font-size:clamp(30px,4vw,46px)}
h2{font-size:clamp(24px,3vw,36px);margin:0 0 18px}
h3{font-size:clamp(19px,2vw,24px);margin:24px 0 10px}
p{margin:0 0 16px;color:#d6deec}
ul,ol{padding-left:22px;color:#d6deec}
li{margin:6px 0}

/* ================= Header ================= */
.site-header{
  position:sticky;top:0;z-index:1000;width:100%;
  background:linear-gradient(180deg,#0b1430 0%,#0a1226 100%);
  border-bottom:1px solid rgba(255,209,102,.12);
  backdrop-filter:saturate(140%) blur(10px);
}
.header-inner{
  max-width:1180px;margin:0 auto;min-height:72px;padding:0 20px;
  display:grid;grid-template-columns:168px minmax(0,1fr) auto;align-items:center;gap:18px;
}
.brand-wrap{width:168px;min-width:168px;max-width:168px;height:56px;display:flex;align-items:center;gap:10px;overflow:hidden;flex-shrink:0;text-decoration:none}
.brand-mark{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;background:linear-gradient(135deg,#ffd166,#ff7a59);border-radius:12px;color:#0a1226;font-weight:800;font-size:14px}
.brand-text{min-width:0;line-height:1.05}
.brand-text strong,.brand-text span{display:block;max-width:105px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand-text strong{color:#fff;font-size:16px;font-weight:800;letter-spacing:.5px}
.brand-text span{color:#ffd166;font-size:11px;margin-top:2px}

.primary-nav{
  min-width:0;display:flex;align-items:center;justify-content:center;
  gap:clamp(6px,1vw,18px);overflow:visible;flex-wrap:nowrap;
}
.primary-nav a{
  white-space:nowrap;flex:0 1 auto;max-width:128px;overflow:hidden;text-overflow:ellipsis;
  line-height:1;padding:10px 8px;color:#e8ecf4;font-size:14px;border-radius:10px;transition:color .2s,background .2s;
}
.primary-nav a:hover,.primary-nav a.is-active{color:#ffd166;background:rgba(255,209,102,.08)}

.header-actions{flex-shrink:0;display:flex;align-items:center;gap:10px;white-space:nowrap}
.header-actions .btn{
  min-height:42px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;
  white-space:nowrap;border-radius:999px;font-weight:700;font-size:14px;border:0;cursor:pointer;
  text-decoration:none;transition:transform .15s,box-shadow .2s;
}
.btn-register{background:linear-gradient(135deg,#ff7a59,#ff3d6e);color:#fff;box-shadow:0 8px 20px rgba(255,61,110,.35)}
.btn-login{background:#ffd166;color:#0a1226}
.header-actions .btn:hover{transform:translateY(-1px)}

.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.05);color:#fff;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle svg{width:22px;height:22px}

/* more menu */
.nav-more{position:relative;flex:0 0 auto}
.more-toggle{min-height:38px;padding:0 14px;border:0;border-radius:999px;cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);color:#fff;font-size:14px}
.more-toggle:hover{background:rgba(255,255,255,.14)}
.more-menu{position:absolute;top:calc(100% + 12px);right:0;min-width:220px;padding:10px;border-radius:16px;background:#101a3a;border:1px solid rgba(255,209,102,.15);box-shadow:0 18px 40px rgba(0,0,0,.45);z-index:1200}
.more-menu[hidden]{display:none!important}
.nav-more.is-open .more-menu{display:grid;gap:4px}
.more-menu a{display:block;width:100%;max-width:none;padding:11px 12px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;color:#e8ecf4;border-radius:10px;font-size:14px}
.more-menu a:hover{background:rgba(255,209,102,.1);color:#ffd166}

/* ================= Hero ================= */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(1200px 600px at 20% 0%,rgba(255,122,89,.25),transparent 60%),
             radial-gradient(900px 500px at 90% 10%,rgba(102,126,234,.22),transparent 60%),
             linear-gradient(180deg,#0b1430,#0a1226);
  padding:64px 0 56px;border-bottom:1px solid rgba(255,255,255,.06)
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(32px,4.4vw,54px);margin:0 0 18px;color:#fff}
.hero .lead{font-size:18px;color:#d6deec;margin:0 0 22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-cta .btn{min-height:50px;padding:0 22px;border-radius:14px;font-weight:800}
.hero-cta .btn-primary{background:linear-gradient(135deg,#ffd166,#ff7a59);color:#0a1226}
.hero-cta .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.18)}
.hero-banner img{border-radius:24px;box-shadow:0 30px 60px rgba(0,0,0,.45)}

/* ================= Cards ================= */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{
  background:linear-gradient(180deg,#121c3d,#0d1530);
  border:1px solid rgba(255,255,255,.06);border-radius:18px;padding:22px;
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,209,102,.3);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.card h3{margin:0 0 8px;color:#ffd166}
.card p{margin:0;color:#cdd6e8;font-size:14.5px}
.card .thumb{margin:-22px -22px 16px;border-radius:18px 18px 0 0;overflow:hidden}
.card .thumb img{border-radius:0;aspect-ratio:16/9;object-fit:cover}

/* ================= Content ================= */
.content-section{padding:72px 0}
.content-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:36px;align-items:start}
.prose{max-width:820px}
.prose p{font-size:17px;line-height:1.9;margin:0 0 18px;color:#dbe2f0}
.prose h2{font-size:clamp(26px,3vw,38px);line-height:1.25;margin:36px 0 14px;color:#fff}
.prose h3{font-size:clamp(20px,2vw,26px);line-height:1.35;margin:26px 0 10px;color:#ffd166}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin:8px 0;color:#dbe2f0}
.prose blockquote{border-left:4px solid #ffd166;padding:8px 16px;margin:18px 0;background:rgba(255,209,102,.06);color:#e8ecf4;border-radius:8px}
.prose img{margin:16px 0;border-radius:16px}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;background:#121c3d;border-radius:14px;overflow:hidden}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left;font-size:15px}
.prose th{background:#19234a;color:#ffd166}

.side-aside{background:#101a3a;border:1px solid rgba(255,255,255,.06);border-radius:18px;padding:22px;position:sticky;top:96px}
.side-aside h4{margin:0 0 12px;color:#ffd166}
.side-aside ul{list-style:none;padding:0;margin:0}
.side-aside li{margin:8px 0}
.side-aside a{color:#e8ecf4;font-size:14.5px}
.side-aside a:hover{color:#ffd166}

/* steps */
.steps{display:grid;gap:14px;margin:18px 0 24px}
.step{display:grid;grid-template-columns:48px 1fr;gap:14px;background:#121c3d;border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:16px}
.step .n{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#ffd166,#ff7a59);color:#0a1226;font-weight:800;display:grid;place-items:center;font-size:18px}
.step h4{margin:0 0 4px;color:#fff;font-size:17px}
.step p{margin:0;color:#cdd6e8;font-size:15px}

/* notice */
.notice{background:rgba(255,61,110,.08);border:1px solid rgba(255,61,110,.35);border-radius:14px;padding:18px;margin:18px 0;color:#ffd9e2}
.notice strong{color:#fff}

/* FAQ */
.faq{display:grid;gap:10px}
.faq details{background:#121c3d;border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:14px 18px}
.faq summary{cursor:pointer;color:#ffd166;font-weight:700;font-size:16px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:#fff;font-size:20px}
.faq details[open] summary::after{content:"–"}
.faq p{margin:10px 0 0;color:#dbe2f0;font-size:15px}

/* CTA strip */
.cta-strip{
  background:linear-gradient(135deg,#1a2350,#231b46);
  border:1px solid rgba(255,209,102,.2);border-radius:22px;padding:32px;margin:40px 0;
  display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center
}
.cta-strip h3{margin:0 0 6px;color:#fff}
.cta-strip p{margin:0;color:#cfd6e8}
.cta-strip .btn{padding:14px 22px;border-radius:14px}

/* Footer */
.site-footer{background:#070d20;border-top:1px solid rgba(255,255,255,.06);padding:56px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.footer-col h5{color:#ffd166;font-size:14px;letter-spacing:1px;text-transform:uppercase;margin:0 0 14px}
.footer-col p,.footer-col a{font-size:14px;color:#a9b3cc}
.footer-col a{display:block;margin:6px 0}
.footer-col a:hover{color:#ffd166}
.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#7c87a3;font-size:13px}

/* breadcrumbs */
.breadcrumb{padding:14px 0;color:#a9b3cc;font-size:14px}
.breadcrumb a{color:#a9b3cc}
.breadcrumb a:hover{color:#ffd166}
.breadcrumb span{margin:0 8px;color:#5a6584}

/* article meta */
.post-meta{display:flex;gap:14px;color:#a9b3cc;font-size:14px;margin:6px 0 18px;flex-wrap:wrap}
.post-cover{margin:16px 0 24px}
.post-cover img{aspect-ratio:16/8;object-fit:cover;width:100%;border-radius:18px}

/* list page */
.list-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.list-card{background:#121c3d;border:1px solid rgba(255,255,255,.06);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s}
.list-card:hover{transform:translateY(-4px)}
.list-card .thumb img{aspect-ratio:16/9;object-fit:cover;width:100%;border-radius:0}
.list-card .body{padding:18px}
.list-card h3{margin:0 0 8px;color:#fff;font-size:18px}
.list-card p{margin:0 0 12px;color:#c4ccdf;font-size:14.5px}
.list-card a.more{color:#ffd166;font-weight:700;font-size:14px}

/* tablet/mobile */
@media (max-width:1024px){
  .hero-grid,.content-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-strip{grid-template-columns:1fr}
}
@media (max-width:900px){
  .header-inner{min-height:68px;grid-template-columns:140px 1fr auto;gap:10px}
  .brand-wrap{width:140px;min-width:140px;max-width:140px;height:48px}
  .brand-mark{width:38px;height:38px;flex-basis:38px}
  .brand-text strong,.brand-text span{max-width:86px}
  .primary-nav{
    position:fixed;left:12px;right:12px;top:76px;display:none;flex-direction:column;align-items:stretch;
    gap:0;padding:14px;border-radius:18px;background:#101a3a;border:1px solid rgba(255,209,102,.15);
    box-shadow:0 18px 40px rgba(0,0,0,.5);max-height:calc(100vh - 96px);overflow-y:auto
  }
  .primary-nav.is-open{display:flex}
  .primary-nav a{max-width:none;width:100%;padding:14px 12px;text-overflow:initial;border-radius:10px}
  .header-actions{justify-content:flex-end;gap:6px}
  .header-actions .btn{min-height:38px;padding:0 12px;font-size:13px}
  .nav-toggle{display:inline-flex}
  .nav-more{display:contents}
  .more-toggle{display:none}
  .more-menu{position:static!important;display:contents!important;background:none!important;border:none!important;box-shadow:none!important;padding:0!important;min-width:0!important}
  .more-menu a{width:100%;padding:14px 12px;border-radius:10px;font-size:14px}
  .section,.content-section{padding:48px 0}
  .prose p{font-size:16px;line-height:1.85}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr}
  .hero{padding:44px 0 36px}
  .hero-cta .btn{width:100%}
}