:root {
  --bh-bg: #04110b;
  --bh-bg-2: #071c12;
  --bh-panel: #0d2117;
  --bh-line: rgba(218, 185, 84, .35);
  --bh-soft-line: rgba(231, 245, 232, .14);
  --bh-gold: #f6c85b;
  --bh-green: #12a866;
  --bh-cyan: #18b8b5;
  --bh-cream: #f6f3df;
  --bh-light: #f4f8ef;
  --bh-ink: #111c15;
  --bh-muted: #c5d3c2;
  --bh-shadow: 0 22px 60px rgba(0, 0, 0, .26);
}

* { box-sizing: border-box; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body.bh-page {
  margin: 0;
  color: #f7faf3;
  background: linear-gradient(180deg, #04110b 0, #071a11 55%, #030b07 100%);
  font-family: Arial, "Noto Sans Bengali", "Helvetica Neue", sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}
.bh-page a { color: inherit; text-decoration: none; }
.bh-page img { display: block; max-width: 100%; }
.bh-shell { width: min(1240px, calc(100% - 48px)); margin: 0 auto; }

.bh-topline { background: #020806; border-bottom: 1px solid rgba(255,255,255,.07); color: #d9e5d5; font-size: 13px; font-weight: 700; }
.bh-topline .bh-shell { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.bh-topline span { min-width: 0; line-height: 1.45; white-space: normal; overflow-wrap: anywhere; word-break: break-word; }
.bh-header { position: sticky; top: 0; z-index: 30; background: rgba(5, 17, 11, .95); border-bottom: 1px solid rgba(255,255,255,.08); backdrop-filter: blur(14px); }
.bh-nav { min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.bh-logo { display: inline-flex; align-items: center; gap: 13px; font-size: 34px; line-height: 1; font-weight: 950; white-space: nowrap; }
.bh-mark { width: 52px; height: 52px; border-radius: 8px; display: grid; place-items: center; color: #062112; background: linear-gradient(135deg, #ffe48b, var(--bh-gold)); box-shadow: 0 14px 30px rgba(246, 200, 91, .23); font-size: 24px; }
.bh-menu { display: flex; align-items: center; gap: 20px; color: #deead9; font-size: 15px; font-weight: 850; white-space: nowrap; }
.bh-menu a { opacity: .9; }
.bh-menu a:hover, .bh-menu a.is-active { color: var(--bh-gold); }
.bh-btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 8px; padding: 0 22px; font-size: 15px; font-weight: 900; line-height: 1; white-space: nowrap; }
.bh-btn-primary { color: #06120b; background: linear-gradient(135deg, #ffe48b, var(--bh-gold)); box-shadow: 0 16px 32px rgba(246, 200, 91, .22); }
.bh-btn-ghost { color: #eef8ec; border-color: rgba(183, 227, 166, .28); background: rgba(19, 48, 32, .62); }

.bh-hero { position: relative; min-height: 690px; display: flex; align-items: center; overflow: hidden; background: #04110b; }
.bh-hero::before, .bh-dark::before, .bh-subhero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(60deg, transparent 0 28%, rgba(104, 147, 75, .12) 28% calc(28% + 1px), transparent calc(28% + 1px) 100%),
    linear-gradient(116deg, transparent 0 44%, rgba(104, 147, 75, .09) 44% calc(44% + 1px), transparent calc(44% + 1px) 100%);
}
.bh-hero-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 17, 11, .98) 0%, rgba(4, 17, 11, .88) 39%, rgba(4, 17, 11, .36) 72%, rgba(4, 17, 11, .78) 100%),
    url("bh999-hero.png") center right / cover no-repeat;
}
.bh-hero-content { position: relative; padding: 70px 0 76px; }
.bh-hero-copy { max-width: 650px; }
.bh-hero h1, .bh-subhero h1 { max-width: 100%; margin: 0; font-size: clamp(42px, 6vw, 72px); line-height: 1.03; font-weight: 950; overflow-wrap: anywhere; }
.bh-hero p { max-width: 610px; margin: 24px 0 0; color: #d3dfcd; font-size: 20px; line-height: 1.75; font-weight: 650; }
.bh-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.bh-stat-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; max-width: 560px; margin-top: 48px; }
.bh-stat { min-height: 86px; border: 1px solid rgba(130, 189, 116, .22); border-radius: 8px; padding: 16px 18px; background: rgba(13, 42, 26, .72); }
.bh-stat b { display: block; color: var(--bh-gold); font-size: 28px; line-height: 1; }
.bh-stat span { display: block; margin-top: 10px; color: #aebdab; font-size: 13px; font-weight: 800; text-transform: uppercase; }

.bh-overview { position: relative; margin-top: -46px; z-index: 2; }
.bh-overview-card { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; border: 1px solid rgba(213, 184, 97, .48); border-radius: 8px; padding: 30px 38px; color: var(--bh-ink); background: var(--bh-cream); box-shadow: var(--bh-shadow); }
.bh-overview h2, .bh-section-title h2, .bh-faq h2 { margin: 0; font-size: clamp(30px, 4vw, 46px); line-height: 1.1; font-weight: 950; }
.bh-overview p, .bh-section-title p { margin: 12px 0 0; color: #536251; font-size: 17px; line-height: 1.7; }
.bh-overview-link { display: inline-flex; min-height: 48px; align-items: center; padding: 0 24px; border-radius: 8px; background: #0b6f45; color: #fff; font-weight: 900; }

.bh-section { position: relative; padding: 86px 0; }
.bh-light { background: var(--bh-light); color: var(--bh-ink); }
.bh-dark { background: linear-gradient(180deg, #06150e, #092116); color: #f7faf3; overflow: hidden; }
.bh-dark .bh-section-title p { color: #bdcab8; }
.bh-intro-grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(430px, 1.15fr); gap: 48px; align-items: center; }
.bh-image-frame { border: 2px solid rgba(21, 132, 82, .42); border-radius: 8px; overflow: hidden; background: #fff; box-shadow: 0 18px 40px rgba(16, 28, 21, .12); }
.bh-image-frame img { width: 100%; height: 390px; object-fit: cover; }
.bh-mini-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 36px; }
.bh-mini, .bh-step-grid article, .bh-point-grid article { border: 1px solid rgba(22, 92, 58, .18); border-radius: 8px; padding: 24px; background: #fff; box-shadow: 0 12px 28px rgba(12, 36, 21, .06); }
.bh-mini h3, .bh-step-grid h3, .bh-point-grid h2 { margin: 0; color: #0a3c27; font-size: 21px; line-height: 1.2; }
.bh-mini p, .bh-step-grid p, .bh-point-grid p { color: #536251; line-height: 1.7; font-size: 15px; }

.bh-category-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 34px; position: relative; }
.bh-category { display: grid; grid-template-columns: 44% 1fr; min-height: 310px; border: 1px solid rgba(246, 200, 91, .42); border-radius: 8px; overflow: hidden; background: rgba(13, 32, 22, .86); box-shadow: var(--bh-shadow); }
.bh-category img { width: 100%; height: 100%; object-fit: cover; }
.bh-category div { padding: 28px; display: flex; flex-direction: column; justify-content: center; }
.bh-category span { color: var(--bh-gold); font-weight: 950; }
.bh-category h3 { margin: 12px 0 0; font-size: 30px; line-height: 1.1; }
.bh-category p { color: #c6d4c1; line-height: 1.7; }
.bh-category a { color: var(--bh-gold); font-weight: 900; }

.bh-step-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin-top: 34px; }
.bh-step-grid b { display: block; color: #0c8d55; font-size: 30px; margin-bottom: 18px; }
.bh-column-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 34px; position: relative; }
.bh-column-card { border: 1px solid rgba(246, 200, 91, .35); border-radius: 8px; overflow: hidden; background: rgba(12, 35, 23, .88); }
.bh-column-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.bh-column-card span, .bh-column-card strong, .bh-column-card small { display: block; margin-left: 20px; margin-right: 20px; }
.bh-column-card span { margin-top: 20px; color: var(--bh-gold); font-weight: 950; }
.bh-column-card strong { margin-top: 10px; font-size: 20px; line-height: 1.25; }
.bh-column-card small { margin-top: 10px; margin-bottom: 22px; color: #becdba; line-height: 1.6; font-size: 14px; }

.bh-news-title { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); gap: 28px; align-items: end; }
.bh-news-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 34px; position: relative; }
.bh-news-card { display: grid; grid-template-columns: 190px 1fr; gap: 18px; border: 1px solid rgba(13, 92, 58, .16); border-radius: 8px; padding: 16px; background: #fff; color: var(--bh-ink); box-shadow: 0 12px 28px rgba(12, 36, 21, .06); }
.bh-dark .bh-news-card { background: rgba(245, 248, 240, .96); }
.bh-news-media { display: block; border-radius: 8px; overflow: hidden; background: #eaf4e5; }
.bh-news-media img { width: 100%; height: 140px; object-fit: cover; }
.bh-news-card time { color: #0e8a55; font-size: 12px; font-weight: 900; text-transform: uppercase; }
.bh-news-card h3 { margin: 8px 0 0; font-size: 20px; line-height: 1.25; }
.bh-news-card p { margin: 10px 0 0; color: #5b6759; font-size: 14px; line-height: 1.6; }

.bh-faq { display: grid; grid-template-columns: .65fr 1fr 1fr 1fr; gap: 18px; position: relative; }
.bh-faq div { border: 1px solid rgba(246, 200, 91, .32); border-radius: 8px; padding: 24px; background: rgba(13, 32, 22, .86); }
.bh-faq h3 { margin: 0; color: var(--bh-gold); font-size: 19px; }
.bh-faq p { color: #c6d4c1; line-height: 1.7; }

.bh-subhero { position: relative; padding: 80px 0; overflow: hidden; background: linear-gradient(180deg, #06150e, #092116); }
.bh-subhero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, .9fr); gap: 44px; align-items: center; }
.bh-subhero p { max-width: 650px; margin: 22px 0 0; color: #d3dfcd; font-size: 19px; line-height: 1.75; }
.bh-subhero img { width: 100%; height: 390px; object-fit: cover; border: 2px solid rgba(246, 200, 91, .56); border-radius: 8px; box-shadow: var(--bh-shadow); }
.bh-label { display: inline-block; margin-bottom: 18px; color: var(--bh-gold); font-size: 13px; line-height: 1; font-weight: 950; text-transform: uppercase; }
.bh-point-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.bh-point-grid article span { display: block; width: 42px; height: 4px; border-radius: 8px; background: linear-gradient(90deg, var(--bh-green), var(--bh-cyan)); margin-bottom: 18px; }

.bh-article { padding: 70px 0 86px; background: var(--bh-light); color: var(--bh-ink); }
.bh-article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.bh-article-main, .bh-side { border: 1px solid rgba(22, 92, 58, .16); border-radius: 8px; overflow: hidden; background: #fff; box-shadow: 0 12px 28px rgba(12, 36, 21, .06); }
.bh-article-cover { width: 100%; max-height: 470px; object-fit: cover; }
.bh-article-body { padding: 36px; }
.bh-article-body h1 { margin: 0; font-size: clamp(34px, 5vw, 54px); line-height: 1.08; }
.bh-article-body h2 { margin: 34px 0 10px; color: #0a3c27; font-size: 25px; }
.bh-article-body p { color: #4c594b; line-height: 1.86; font-size: 17px; }
.bh-meta { display: flex; flex-wrap: wrap; gap: 12px; margin: 20px 0 4px; color: #61705f; font-size: 13px; font-weight: 800; }
.bh-side { position: sticky; top: 116px; padding: 22px; }
.bh-side h3 { margin: 0 0 16px; color: #0a3c27; }
.bh-side a { display: block; padding: 13px 0; border-top: 1px solid rgba(22, 92, 58, .14); color: #0d7047; font-weight: 900; }

.bh-footer { padding: 54px 0 24px; background: #020806; color: #d7e2d3; border-top: 1px solid rgba(255,255,255,.08); }
.bh-footer-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 30px; align-items: center; }
.bh-footer p { max-width: 620px; color: #aebdab; line-height: 1.7; }
.bh-footer-links { display: flex; flex-wrap: wrap; gap: 14px 22px; font-weight: 850; }
.bh-footer-links a { color: var(--bh-gold); }
.bh-footer-bottom { display: flex; justify-content: space-between; gap: 18px; margin-top: 30px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.08); color: #95a391; font-size: 13px; }

@media (max-width: 1040px) {
  .bh-nav { align-items: flex-start; flex-direction: column; padding: 16px 0; }
  .bh-menu { flex-wrap: wrap; gap: 10px 16px; }
  .bh-hero { min-height: 620px; }
  .bh-hero-bg { background-position: 62% 50%; opacity: .9; }
  .bh-intro-grid, .bh-subhero-grid, .bh-article-grid { grid-template-columns: 1fr; }
  .bh-category-grid, .bh-news-grid { grid-template-columns: 1fr; }
  .bh-column-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bh-step-grid, .bh-point-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bh-faq { grid-template-columns: 1fr 1fr; }
  .bh-side { position: static; }
}

@media (max-width: 680px) {
  .bh-shell { width: min(100% - 28px, 1240px); }
  .bh-topline .bh-shell { align-items: flex-start; flex-direction: column; padding: 10px 0; }
  .bh-topline span { display: block; width: 100%; max-width: 100%; }
  .bh-logo { font-size: 28px; }
  .bh-mark { width: 46px; height: 46px; font-size: 21px; }
  .bh-menu { overflow-x: auto; width: 100%; padding-bottom: 8px; flex-wrap: nowrap; }
  .bh-menu { scrollbar-width: none; }
  .bh-menu::-webkit-scrollbar { display: none; }
  .bh-menu a { flex: 0 0 auto; }
  .bh-nav .bh-btn { display: none; }
  .bh-hero { min-height: 620px; align-items: end; }
  .bh-hero-bg { background-position: 64% 50%; }
  .bh-hero h1, .bh-subhero h1 { font-size: 36px; line-height: 1.12; }
  .bh-hero-copy, .bh-hero h1, .bh-hero p, .bh-actions { max-width: 340px; }
  .bh-hero p, .bh-subhero p { font-size: 17px; }
  .bh-hero-content { padding: 150px 0 46px; }
  .bh-stat-row, .bh-mini-grid, .bh-step-grid, .bh-column-grid, .bh-point-grid, .bh-faq, .bh-overview-card, .bh-footer-inner, .bh-footer-bottom, .bh-news-title { grid-template-columns: 1fr; }
  .bh-overview { margin-top: 0; }
  .bh-overview-card { padding: 22px; }
  .bh-section { padding: 58px 0; }
  .bh-category { grid-template-columns: 1fr; }
  .bh-category img { height: 220px; }
  .bh-news-card { grid-template-columns: 1fr; }
  .bh-news-media img { height: 190px; }
  .bh-subhero { padding: 52px 0; }
  .bh-subhero img { height: 250px; }
  .bh-article { padding: 36px 0 56px; }
  .bh-article-body { padding: 24px; }
}