:root {
  --b3-navy: #062452;
  --b3-navy-2: #092f6f;
  --b3-deep: #041634;
  --b3-gold: #ffc924;
  --b3-gold-2: #ffab00;
  --b3-cream: #fff6db;
  --b3-soft: #f5f7fb;
  --b3-ink: #15315c;
  --b3-muted: #5b6e8b;
  --b3-line: rgba(8, 42, 93, .14);
  --b3-white: #ffffff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fffdf6;
  color: var(--b3-ink);
  font-family: "Noto Sans Bengali", "Hind Siliguri", system-ui, sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.b3-wrap { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.b3-topbar {
  background: var(--b3-deep);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}
.b3-topbar-inner {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.b3-top-points { display: flex; gap: 22px; flex-wrap: wrap; }
.b3-top-points span::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--b3-gold);
  margin-right: 7px;
  vertical-align: middle;
}
.b3-header {
  background: #fff;
  color: var(--b3-ink);
  position: sticky;
  top: 0;
  z-index: 30;
  box-shadow: 0 9px 28px rgba(6, 36, 82, .08);
}
.b3-header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.b3-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 136px;
}
.b3-brand strong {
  display: inline-flex;
  align-items: center;
  color: var(--b3-navy);
  font-size: 30px;
  font-weight: 1000;
  line-height: 1;
  letter-spacing: 0;
}
.b3-brand strong span { color: var(--b3-gold-2); }
.b3-brand i {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff8bc 0 18%, #ffd434 19% 62%, #d68d00 63% 100%);
  box-shadow: 0 4px 12px rgba(255, 171, 0, .45);
}
.b3-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
  overflow-x: auto;
  scrollbar-width: none;
}
.b3-nav::-webkit-scrollbar { display: none; }
.b3-nav a {
  white-space: nowrap;
  padding: 26px 9px 20px;
  border-bottom: 4px solid transparent;
  color: #172b52;
  font-size: 14px;
  font-weight: 950;
}
.b3-nav a.is-active,
.b3-nav a:hover {
  color: var(--b3-navy-2);
  border-bottom-color: var(--b3-gold);
}
.b3-actions { display: flex; align-items: center; gap: 12px; }
.b3-action,
.b3-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 950;
  border: 1px solid transparent;
}
.b3-action.ghost {
  color: var(--b3-navy);
  border-color: #b8c7df;
  background: #fff;
}
.b3-action.gold,
.b3-button.gold {
  background: linear-gradient(180deg, #ffdc50, #ffb800);
  color: #2b1a00;
  box-shadow: 0 10px 22px rgba(255, 184, 0, .28);
}
.b3-button.light {
  background: #fff;
  color: var(--b3-navy);
  border-color: rgba(255,255,255,.3);
}
.b3-hero {
  position: relative;
  min-height: 548px;
  overflow: hidden;
  background: var(--b3-deep);
  color: #fff;
}
.b3-hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4,22,52,.96) 0%, rgba(4,22,52,.86) 38%, rgba(4,22,52,.22) 78%, rgba(4,22,52,.54) 100%),
    url("/assets/3666bet-hero.png") center right / cover no-repeat;
}
.b3-hero-grid {
  position: relative;
  min-height: 548px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 46px;
  align-items: center;
}
.b3-hero-copy { padding: 72px 0 80px; }
.b3-hero h1,
.b3-subhero h1,
.b3-article-hero h1 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
  font-weight: 1000;
}
.b3-hero h1 { font-size: clamp(44px, 6vw, 76px); max-width: 680px; }
.b3-hero p {
  margin: 22px 0 0;
  max-width: 650px;
  color: rgba(255,255,255,.88);
  font-size: 18px;
  font-weight: 700;
}
.b3-cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.b3-hero-panel {
  padding: 22px;
  border-radius: 8px;
  background: #0b3d85;
  border: 1px solid rgba(255, 201, 36, .45);
  box-shadow: 0 28px 70px rgba(0,0,0,.32);
}
.b3-hero-panel h2 {
  margin: 0;
  color: rgba(255,255,255,.82);
  font-size: 15px;
}
.b3-balance {
  margin-top: 10px;
  font-size: 20px;
  font-weight: 1000;
  color: var(--b3-gold);
}
.b3-panel-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 20px;
}
.b3-panel-actions a {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: #174d9d;
  color: #fff;
  font-size: 12px;
  font-weight: 900;
}
.b3-game-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}
.b3-game-grid a {
  min-height: 78px;
  padding: 14px;
  display: flex;
  align-items: flex-end;
  border-radius: 6px;
  background: #1b579e;
  color: #fff;
  font-weight: 950;
}
.b3-stats {
  position: relative;
  z-index: 2;
  margin-top: -34px;
}
.b3-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 14px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(6,36,82,.16);
}
.b3-stats article {
  min-height: 92px;
  padding: 17px;
  border-radius: 6px;
  border: 1px solid #f0db97;
  background: #fff9e7;
}
.b3-stats b {
  display: block;
  color: var(--b3-navy-2);
  font-size: 22px;
  line-height: 1;
}
.b3-stats span {
  display: block;
  margin-top: 8px;
  font-weight: 950;
}
.b3-stats small { display: block; color: var(--b3-muted); margin-top: 4px; font-weight: 700; }
.b3-section { padding: 76px 0; }
.b3-soft { background: var(--b3-cream); }
.b3-section-head { max-width: 850px; margin-bottom: 28px; }
.b3-section-head span,
.b3-subhero span,
.b3-article-hero span,
.b3-promo-copy span {
  display: inline-block;
  color: var(--b3-navy-2);
  font-size: 13px;
  font-weight: 1000;
  margin-bottom: 8px;
}
.b3-section-head h2 {
  margin: 0;
  color: var(--b3-ink);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.14;
  letter-spacing: 0;
}
.b3-section-head p {
  margin: 12px 0 0;
  max-width: 780px;
  color: var(--b3-muted);
  font-weight: 700;
}
.b3-intro {
  display: grid;
  grid-template-columns: minmax(320px, .92fr) minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}
.b3-intro > img,
.b3-promo img,
.b3-subhero img,
.b3-article-hero img {
  border-radius: 8px;
  box-shadow: 0 20px 50px rgba(7,32,73,.15);
}
.b3-intro-copy {
  padding: 30px;
  border: 1px solid var(--b3-line);
  border-radius: 8px;
  background: #fff;
}
.b3-intro-copy p { color: var(--b3-muted); font-weight: 700; }
.b3-mini-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
}
.b3-mini-grid span {
  min-height: 86px;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #f0db97;
  background: #fff9e7;
  font-weight: 900;
}
.b3-mini-grid b {
  display: block;
  color: var(--b3-navy-2);
  margin-bottom: 6px;
}
.b3-category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.b3-category {
  overflow: hidden;
  min-height: 310px;
  border-radius: 8px;
  background: var(--b3-navy);
  color: #fff;
  box-shadow: 0 18px 35px rgba(6,36,82,.16);
}
.b3-category img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.b3-category strong {
  display: inline-flex;
  margin: 14px 16px 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--b3-gold);
  color: #2b1a00;
  font-size: 12px;
}
.b3-category span {
  display: block;
  margin: 10px 16px 0;
  font-size: 18px;
  font-weight: 1000;
  line-height: 1.25;
}
.b3-category small {
  display: block;
  margin: 8px 16px 18px;
  color: rgba(255,255,255,.78);
  font-weight: 650;
}
.b3-promo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: center;
  padding: 30px;
  border-radius: 8px;
  color: #fff;
  background:
    radial-gradient(circle at top right, rgba(255,201,36,.28), transparent 35%),
    linear-gradient(135deg, #062452, #0b3d85);
  overflow: hidden;
}
.b3-promo-copy h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}
.b3-promo-copy p {
  color: rgba(255,255,255,.83);
  font-weight: 700;
  max-width: 650px;
}
.b3-news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.b3-card {
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(6,36,82,.12);
  border: 1px solid rgba(6,36,82,.08);
}
.b3-card-img img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.b3-card-body { padding: 18px; }
.b3-card-body span {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--b3-gold);
  color: #2b1a00;
  font-size: 12px;
  font-weight: 950;
}
.b3-card h3 {
  margin: 12px 0 8px;
  font-size: 20px;
  line-height: 1.25;
}
.b3-card p {
  min-height: 76px;
  margin: 0;
  color: var(--b3-muted);
  font-weight: 650;
}
.b3-read {
  display: inline-flex;
  margin-top: 14px;
  color: var(--b3-navy-2);
  font-weight: 1000;
}
.b3-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(6,36,82,.12);
}
.b3-table th,
.b3-table td {
  padding: 16px;
  border: 1px solid var(--b3-line);
  text-align: left;
  vertical-align: top;
}
.b3-table th {
  background: var(--b3-navy);
  color: #fff;
  font-weight: 950;
}
.b3-table td { color: #32496e; font-weight: 750; }
.b3-faq {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.b3-faq details {
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--b3-line);
  padding: 18px 20px;
}
.b3-faq summary {
  cursor: pointer;
  color: var(--b3-ink);
  font-weight: 1000;
}
.b3-faq p { color: var(--b3-muted); margin-bottom: 0; font-weight: 700; }
.b3-subhero,
.b3-article-hero {
  padding: 62px 0;
  color: #fff;
  background:
    radial-gradient(circle at right top, rgba(255,201,36,.23), transparent 34%),
    linear-gradient(135deg, #041634, #0b3d85);
}
.b3-subhero-grid,
.b3-article-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  align-items: center;
}
.b3-subhero h1,
.b3-article-hero h1 { font-size: clamp(36px, 5vw, 60px); }
.b3-subhero p,
.b3-article-hero p {
  max-width: 720px;
  color: rgba(255,255,255,.85);
  font-weight: 700;
}
.b3-step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.b3-step-grid article {
  min-height: 210px;
  padding: 24px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--b3-line);
  box-shadow: 0 18px 42px rgba(6,36,82,.08);
}
.b3-step-grid b {
  color: var(--b3-gold-2);
  font-size: 32px;
  line-height: 1;
}
.b3-step-grid h2 {
  margin: 16px 0 8px;
  font-size: 22px;
  line-height: 1.22;
}
.b3-step-grid p { color: var(--b3-muted); font-weight: 650; }
.b3-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  align-items: start;
}
.b3-article,
.b3-side,
.b3-list-item {
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--b3-line);
  box-shadow: 0 18px 42px rgba(6,36,82,.09);
}
.b3-article { padding: 34px; }
.b3-article p {
  color: #334a70;
  font-size: 18px;
  font-weight: 650;
}
.b3-article h2 {
  margin-top: 30px;
  font-size: 30px;
  line-height: 1.2;
}
.b3-crumb,
.b3-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--b3-muted);
  font-weight: 850;
}
.b3-crumb a,
.b3-crumb span,
.b3-meta span {
  padding: 6px 12px;
  border-radius: 999px;
  background: #f2f6ff;
}
.b3-summary {
  padding: 18px;
  border-radius: 8px;
  background: #fff8df;
  color: #385276;
  font-weight: 850;
}
.b3-body img { border-radius: 8px; }
.b3-side {
  padding: 22px;
  position: sticky;
  top: 104px;
}
.b3-side h2 { margin-top: 0; font-size: 24px; }
.b3-side ul { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 10px; }
.b3-side a:not(.b3-button) {
  display: block;
  padding: 12px;
  border-radius: 6px;
  background: #f3f6fc;
  color: var(--b3-navy);
  font-weight: 900;
}
.b3-list-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.b3-list-item { padding: 22px; }
.b3-list-item h2 { margin: 0 0 10px; line-height: 1.24; }
.b3-list-item p { color: var(--b3-muted); font-weight: 650; }
.b3-pages,
.b3-next {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}
.b3-pages li,
.b3-pages a,
.b3-next div,
.b3-actions-row a {
  display: inline-flex;
  padding: 9px 13px;
  border-radius: 6px;
  background: #f2f6ff;
  color: var(--b3-navy);
  font-weight: 900;
}
.b3-actions-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.b3-partners {
  padding: 44px 0;
  background: var(--b3-deep);
  color: #fff;
}
.b3-partners h2 { margin: 0 0 16px; font-size: 26px; }
.b3-pill-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 10px;
}
.b3-pill-grid span {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.86);
  font-weight: 900;
}
.b3-footer {
  padding: 48px 0 22px;
  background: #082a5d;
  color: #d9e6ff;
}
.b3-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, .72fr);
  gap: 30px;
}
.b3-footer-logo {
  color: #fff;
  font-size: 32px;
  font-weight: 1000;
  line-height: 1;
}
.b3-footer-logo span { color: var(--b3-gold); }
.b3-footer p { color: rgba(255,255,255,.72); font-weight: 650; }
.b3-footer h2 {
  margin: 0 0 13px;
  color: #fff;
  font-size: 18px;
}
.b3-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.b3-footer a { color: rgba(255,255,255,.8); font-weight: 800; }
.b3-footline {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.13);
  color: rgba(255,255,255,.62);
  font-weight: 700;
}
@media (max-width: 980px) {
  .b3-header-inner { flex-wrap: wrap; padding: 12px 0; }
  .b3-brand { min-width: 0; }
  .b3-nav { order: 3; width: 100%; justify-content: flex-start; }
  .b3-nav a { padding-top: 10px; padding-bottom: 10px; }
  .b3-hero-grid,
  .b3-intro,
  .b3-promo,
  .b3-subhero-grid,
  .b3-article-hero-grid,
  .b3-article-layout {
    grid-template-columns: 1fr;
  }
  .b3-hero-grid { gap: 10px; padding-bottom: 36px; }
  .b3-hero-copy { padding-bottom: 20px; }
  .b3-hero-panel { max-width: 430px; }
  .b3-stats-grid,
  .b3-category-grid,
  .b3-news-grid,
  .b3-step-grid,
  .b3-footer-grid,
  .b3-pill-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .b3-mini-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .b3-side { position: static; }
}
@media (max-width: 640px) {
  .b3-wrap { width: min(100% - 24px, 1160px); }
  .b3-topbar-inner { align-items: flex-start; flex-direction: column; padding: 8px 0; gap: 6px; }
  .b3-actions { margin-left: auto; }
  .b3-action { min-height: 38px; padding: 0 14px; }
  .b3-brand strong { font-size: 25px; }
  .b3-hero { min-height: auto; }
  .b3-hero-grid { min-height: auto; grid-template-columns: 1fr; }
  .b3-hero h1 { font-size: clamp(38px, 12vw, 52px); }
  .b3-hero p { font-size: 16px; }
  .b3-stats-grid,
  .b3-category-grid,
  .b3-news-grid,
  .b3-step-grid,
  .b3-faq,
  .b3-list-grid,
  .b3-footer-grid,
  .b3-pill-grid {
    grid-template-columns: 1fr;
  }
  .b3-section { padding: 52px 0; }
  .b3-stats { margin-top: 0; background: #fff; padding: 12px 0; }
  .b3-intro-copy,
  .b3-promo,
  .b3-article { padding: 20px; }
  .b3-subhero,
  .b3-article-hero { padding: 44px 0; }
  .b3-table { display: block; overflow-x: auto; white-space: nowrap; }
}