/* ceo bet mobile-first visual system */
:root {
  --c1521a-bg: #0D1117;
  --c1521a-ink: #DEE2E6;
  --c1521a-aqua: #40E0D0;
  --c1521a-sky: #87CEEB;
  --c1521a-sand: #DEB887;
  --c1521a-muted: #8B7355;
  --c1521a-line: rgba(222, 226, 230, .18);
  --c1521a-panel: rgba(20, 29, 38, .94);
  --c1521a-width: 540px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: #0D1117;
  color: var(--c1521a-ink);
  font-family: "Arial Narrow", "Noto Sans Bengali", sans-serif;
  font-size: 15px;
  line-height: 1.62;
  overflow-x: hidden;
}
button, a { font: inherit; }
button { color: inherit; }
a { color: var(--c1521a-aqua); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--c1521a-sand); outline-offset: 3px; }
img { display: block; max-width: 100%; }

.c1521a-shell {
  position: relative;
  width: min(100%, var(--c1521a-width));
  min-height: 100vh;
  margin: 0 auto;
  background:
    radial-gradient(circle at 93% 7%, rgba(64, 224, 208, .13), transparent 25rem),
    radial-gradient(circle at 5% 46%, rgba(135, 206, 235, .08), transparent 22rem),
    #0D1117;
}
.c1521a-topbar {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 50%;
  width: min(100%, var(--c1521a-width));
  transform: translateX(-50%);
  border-bottom: 1px solid var(--c1521a-line);
  background: rgba(13, 17, 23, .97);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .28);
}
.c1521a-topbar-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
  padding: 8px 10px 8px 12px;
}
.c1521a-brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
  color: var(--c1521a-ink);
  text-decoration: none;
}
.c1521a-brand img { width: 34px; height: 34px; border: 1px solid var(--c1521a-aqua); border-radius: 8px; object-fit: cover; }
.c1521a-brand-name {
  overflow: hidden;
  color: var(--c1521a-sand);
  font-family: Georgia, "Noto Serif Bengali", serif;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}
.c1521a-topbar-actions { display: flex; align-items: center; gap: 5px; }
.c1521a-btn {
  min-height: 42px;
  border: 1px solid var(--c1521a-aqua);
  border-radius: 2px;
  padding: 7px 10px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.1;
  transition: transform .18s ease, background-color .18s ease, color .18s ease;
}
.c1521a-btn:hover, .c1521a-btn:active { transform: translateY(-2px); }
.c1521a-btn-primary { background: var(--c1521a-aqua); color: #071116; }
.c1521a-btn-primary:hover { background: var(--c1521a-sky); }
.c1521a-btn-ghost { background: transparent; color: var(--c1521a-ink); border-color: var(--c1521a-muted); }
.c1521a-btn-ghost:hover { border-color: var(--c1521a-aqua); color: var(--c1521a-aqua); }
.c1521a-menu-btn, .c1521a-menu-close {
  display: inline-grid;
  min-width: 42px;
  min-height: 42px;
  place-items: center;
  border: 1px solid var(--c1521a-line);
  border-radius: 2px;
  background: #141d26;
  cursor: pointer;
}
.c1521a-menu-btn:hover, .c1521a-menu-close:hover { border-color: var(--c1521a-aqua); color: var(--c1521a-aqua); }

.c1521a-tabs {
  position: sticky;
  z-index: 15;
  top: 62px;
  display: flex;
  gap: 6px;
  width: 100%;
  margin-top: 62px;
  padding: 9px 10px;
  overflow-x: auto;
  border-bottom: 1px solid var(--c1521a-line);
  background: rgba(13, 17, 23, .96);
  scrollbar-width: none;
}
.c1521a-tabs::-webkit-scrollbar { display: none; }
.c1521a-tab {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--c1521a-line);
  border-radius: 2px;
  color: #b9c5cc;
  font-size: 12px;
  text-decoration: none;
  white-space: nowrap;
}
.c1521a-tab:hover, .c1521a-tab-on { border-color: var(--c1521a-aqua); color: var(--c1521a-aqua); background: rgba(64, 224, 208, .08); }

.c1521a-menu {
  position: fixed;
  z-index: 35;
  top: 62px;
  left: 50%;
  display: none;
  width: min(100%, var(--c1521a-width));
  max-height: calc(100vh - 62px);
  overflow-y: auto;
  transform: translateX(-50%);
  padding: 15px 14px 20px;
  border: 1px solid var(--c1521a-aqua);
  border-top: 0;
  background: rgba(13, 17, 23, .99);
  box-shadow: 0 18px 35px rgba(0, 0, 0, .5);
}
.c1521a-menu.c1521a-menu-open { display: block; }
.c1521a-menu-head { display: flex; align-items: center; gap: 9px; padding-bottom: 13px; border-bottom: 1px solid var(--c1521a-line); }
.c1521a-menu-head img { width: 31px; height: 31px; border-radius: 6px; }
.c1521a-menu-head strong { color: var(--c1521a-sand); font-family: Georgia, serif; font-size: 16px; }
.c1521a-menu-close { margin-left: auto; }
.c1521a-menu-list { display: grid; gap: 3px; padding: 13px 0; }
.c1521a-menu-list a { min-height: 44px; padding: 10px 8px; border-left: 2px solid transparent; color: var(--c1521a-ink); text-decoration: none; }
.c1521a-menu-list a:hover { border-left-color: var(--c1521a-aqua); background: rgba(64, 224, 208, .08); color: var(--c1521a-aqua); }
.c1521a-menu-cta { display: flex; gap: 8px; }
.c1521a-menu-cta .c1521a-btn { flex: 1; }

.c1521a-main { padding: 0 12px 102px; }
.c1521a-hero { padding: 28px 2px 18px; }
h1, h2, h3 { margin: 0; color: var(--c1521a-ink); font-family: Georgia, "Noto Serif Bengali", serif; line-height: 1.18; }
h1 { font-size: clamp(24px, 7vw, 35px); letter-spacing: -.02em; }
h1 em { color: var(--c1521a-aqua); font-style: normal; }
h2 { font-size: clamp(19px, 5vw, 26px); }
h3 { font-size: 16px; color: var(--c1521a-sand); }
p { margin: 0 0 14px; }
.c1521a-hero-lead, .c1521a-lead { color: #c3cdd2; font-size: 15px; }
.c1521a-hero-lead { margin-top: 15px; }
.c1521a-hero-cta { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 15px; }
.c1521a-hero-cta .c1521a-btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.c1521a-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.c1521a-chip { padding: 5px 8px; border-left: 2px solid var(--c1521a-sky); background: rgba(135, 206, 235, .08); color: #cbd8dd; font-size: 11px; }

.c1521a-carousel { position: relative; margin: 3px -2px 22px; }
.c1521a-slide { position: relative; display: none; width: 100%; padding: 0; overflow: hidden; border: 1px solid var(--c1521a-muted); border-radius: 2px; background: #141d26; cursor: pointer; text-align: left; }
.c1521a-slide.c1521a-slide-on { display: block; }
.c1521a-slide img { width: 100%; aspect-ratio: 2.5 / 1; object-fit: cover; opacity: .84; }
.c1521a-slide-cap { position: absolute; right: 0; bottom: 0; left: 0; display: flex; align-items: baseline; justify-content: space-between; gap: 7px; padding: 9px 10px; background: linear-gradient(transparent, rgba(7, 11, 16, .92)); color: var(--c1521a-ink); font-size: 11px; }
.c1521a-slide-cap strong { color: var(--c1521a-sand); font-family: Georgia, serif; font-size: 15px; }
.c1521a-dots { display: flex; justify-content: center; gap: 7px; margin-top: 9px; }
.c1521a-dot { width: 9px; height: 9px; padding: 0; border: 1px solid var(--c1521a-muted); border-radius: 50%; background: transparent; cursor: pointer; }
.c1521a-dot-on, .c1521a8a4-dot-on { border-color: var(--c1521a-aqua); background: var(--c1521a-aqua); }

.c1521a-sec { margin: 0 0 24px; scroll-margin-top: 116px; }
.c1521a-sec-head { display: flex; align-items: end; justify-content: space-between; gap: 8px; margin-bottom: 8px; border-bottom: 1px solid var(--c1521a-line); padding-bottom: 8px; }
.c1521a-sec-count { flex: 0 0 auto; color: var(--c1521a-sky); font-size: 11px; }
.c1521a-sec-intro { color: #aebbc2; font-size: 13px; }
.c1521a-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; }
.c1521a-gcard { min-width: 0; padding: 4px 3px 7px; border: 1px solid rgba(222, 226, 230, .13); border-radius: 3px; background: linear-gradient(145deg, rgba(25, 37, 46, .98), rgba(13, 17, 23, .98)); cursor: pointer; text-align: center; }
.c1521a-gcard:hover, .c1521a-gcard:active { border-color: var(--c1521a-aqua); transform: translateY(-2px); }
.c1521a-gcard img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 2px; }
.c1521a-gcard span { display: -webkit-box; min-height: 2.55em; margin-top: 4px; overflow: hidden; color: #dbe4e8; font-size: 10px; line-height: 1.28; overflow-wrap: anywhere; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.c1521a-mod { padding: 17px 13px; border: 1px solid var(--c1521a-line); background: rgba(20, 29, 38, .55); }
.c1521a-mod h2 { margin-bottom: 10px; }
.c1521a-steps { margin: 12px 0 17px; padding: 0; list-style: none; counter-reset: c1521a-step; }
.c1521a-steps li { position: relative; margin: 0 0 9px; padding: 9px 10px 9px 39px; border-left: 2px solid var(--c1521a-aqua); background: rgba(64, 224, 208, .06); }
.c1521a-steps li::before { position: absolute; left: 10px; color: var(--c1521a-sand); content: counter(c1521a-step, decimal-leading-zero); counter-increment: c1521a-step; font-weight: 700; }
.c1521a-versus { display: grid; gap: 8px; }
.c1521a-versus-row { padding: 11px 10px; border: 1px solid var(--c1521a-line); }
.c1521a-versus-row p { margin: 6px 0 0; color: #b6c1c7; font-size: 13px; }
.c1521a-answer { border-color: rgba(222, 184, 135, .55); background: rgba(139, 115, 85, .11); }
.c1521a-terms { display: grid; grid-template-columns: minmax(0, 1fr); margin: 14px 0; }
.c1521a-terms dt { padding: 9px 10px 2px; color: var(--c1521a-sand); font-weight: 700; }
.c1521a-terms dd { margin: 0; padding: 0 10px 9px; border-bottom: 1px solid var(--c1521a-line); color: #b6c1c7; font-size: 13px; }

.c1521a-ext { margin: 30px 0 0; padding: 18px 13px 8px; border-top: 1px solid var(--c1521a-aqua); background: rgba(20, 29, 38, .72); }
.c1521a-ext h2 { margin-bottom: 13px; }
.c1521a-ext h3 { margin: 14px 0 5px; font-family: "Arial Narrow", sans-serif; font-size: 13px; }
.c1521a-ext-links { display: flex; flex-wrap: wrap; gap: 6px; }
.c1521a-ext-links a { padding: 5px 7px; border: 1px solid var(--c1521a-line); font-size: 12px; text-decoration: none; }
.c1521a-ext-brand { display: flex; gap: 10px; margin-top: 20px; padding-top: 15px; border-top: 1px solid var(--c1521a-line); }
.c1521a-ext-brand img { flex: 0 0 auto; width: 42px; height: 42px; border-radius: 8px; }
.c1521a-ext-brand p { color: #aebbc2; font-size: 12px; }
.c1521a-ext-promos { margin-top: 17px; }
.c1521a-ext-promos ul { display: grid; gap: 6px; margin: 0; padding: 0; list-style: none; }
.c1521a-ext-promo { display: flex; width: 100%; min-height: 46px; align-items: center; gap: 8px; padding: 8px 9px; border: 1px solid var(--c1521a-line); border-radius: 2px; background: #111a22; cursor: pointer; text-align: left; }
.c1521a-ext-promo:hover { border-color: var(--c1521a-aqua); color: var(--c1521a-aqua); }
.c1521a-ext-promo span { flex: 1; font-size: 12px; }
.c1521a-ext-promo i { color: var(--c1521a-sand); font-size: 20px; font-style: normal; }
.c1521a-note { margin: 19px 0 0; color: #aebbc2; font-size: 11px; }
.c1521a-copy { padding: 18px 0 10px; color: #91a0a8; font-size: 11px; text-align: center; }

/* Help pages use a reading-led layout rather than the homepage grid. */
.c1521a-help-main { padding-top: 23px; }
.c1521a-help-hero { padding: 3px 2px 21px; }
.c1521a-help-kicker { margin-bottom: 8px; color: var(--c1521a-aqua); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.c1521a-help-hero h1 { font-size: clamp(25px, 7vw, 35px); }
.c1521a-help-hero p { margin-top: 14px; color: #c3cdd2; }
.c1521a-help-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 15px; }
.c1521a-help-actions .c1521a-btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.c1521a-help-panel { margin: 0 0 18px; padding: 17px 13px; border-left: 2px solid var(--c1521a-sky); background: rgba(20, 29, 38, .7); scroll-margin-top: 86px; }
.c1521a-help-panel h2 { margin-bottom: 10px; }
.c1521a-help-panel > p:first-of-type { color: #d1dadd; }
.c1521a-help-panel p:last-child { margin-bottom: 0; }
.c1521a-help-scenarios { display: grid; gap: 8px; margin-top: 13px; }
.c1521a-help-scenario { padding: 11px 10px; border: 1px solid var(--c1521a-line); background: rgba(13, 17, 23, .55); }
.c1521a-help-scenario h3 { margin-bottom: 5px; font-size: 15px; }
.c1521a-help-scenario p { margin: 0; color: #b8c4c9; font-size: 13px; }
.c1521a-help-list { display: grid; gap: 7px; margin: 12px 0 14px; padding: 0; list-style: none; }
.c1521a-help-list li { position: relative; padding: 9px 10px 9px 30px; border-bottom: 1px solid var(--c1521a-line); color: #c3cdd2; }
.c1521a-help-list li::before { position: absolute; left: 7px; color: var(--c1521a-aqua); content: "▸"; font-weight: 700; }
.c1521a-help-list strong { color: var(--c1521a-sand); }
.c1521a-checklist { display: grid; gap: 6px; margin: 13px 0 14px; padding: 0; list-style: none; }
.c1521a-checklist li { min-height: 44px; padding: 10px 11px 10px 38px; border: 1px solid var(--c1521a-line); color: #cbd5d9; }
.c1521a-checklist li::before { float: left; margin-left: -25px; color: var(--c1521a-aqua); content: "□"; font-size: 17px; line-height: 1; }
.c1521a-callout { margin: 13px 0; padding: 12px; border: 1px solid var(--c1521a-sand); background: rgba(222, 184, 135, .08); color: #d8d5ce; }
.c1521a-callout strong { color: var(--c1521a-sand); }
.c1521a-promo-rail { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.c1521a-promo-rail .c1521a-btn { flex: 1 1 130px; }
.c1521a-help-table { width: 100%; margin: 13px 0; border-collapse: collapse; font-size: 12px; }
.c1521a-help-table th, .c1521a-help-table td { padding: 8px 6px; border: 1px solid var(--c1521a-line); text-align: left; vertical-align: top; }
.c1521a-help-table th { color: var(--c1521a-sand); font-weight: 700; }
.c1521a-help-table td { color: #bdc8cd; }
.c1521a-qa-stack { display: grid; gap: 8px; margin-top: 13px; }
.c1521a-qa { padding: 11px 10px; border: 1px solid var(--c1521a-line); }
.c1521a-qa h3 { margin-bottom: 5px; font-size: 14px; }
.c1521a-qa p { margin: 0; color: #bdc8cd; font-size: 13px; }
.c1521a-fact-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; margin: 13px 0; }
.c1521a-fact { padding: 10px 8px; border-top: 2px solid var(--c1521a-aqua); background: rgba(64, 224, 208, .06); }
.c1521a-fact strong { display: block; color: var(--c1521a-sand); font-size: 13px; }
.c1521a-fact span { display: block; color: #b6c1c7; font-size: 12px; }

.c1521a-dock {
  position: fixed;
  z-index: 30;
  right: auto;
  bottom: max(9px, env(safe-area-inset-bottom));
  left: 50%;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  width: min(calc(100% - 18px), 500px);
  min-height: 62px;
  transform: translateX(-50%);
  border: 1px solid rgba(64, 224, 208, .48);
  border-radius: 7px;
  background: rgba(17, 26, 34, .97);
  box-shadow: 0 9px 30px rgba(0, 0, 0, .5);
}
.c1521a-dock-item { display: flex; min-width: 0; min-height: 60px; align-items: center; justify-content: center; gap: 2px; padding: 5px 2px; border: 0; border-right: 1px solid rgba(222, 226, 230, .09); background: transparent; color: #9aaab2; cursor: pointer; text-align: center; text-decoration: none; }
.c1521a-dock-item:last-child { border-right: 0; }
.c1521a-dock-item svg { width: 20px; height: 20px; flex: 0 0 auto; }
.c1521a-dock-item span { max-width: 100%; overflow: hidden; font-size: 10px; line-height: 1.1; text-overflow: ellipsis; white-space: nowrap; }
.c1521a-dock-item:hover, .c1521a-dock-on { color: var(--c1521a-aqua); transform: translateY(-3px); }

@media (min-width: 375px) {
  .c1521a-grid { gap: 8px; grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .c1521a-gcard span { font-size: 10.5px; }
  .c1521a-main { padding-right: 14px; padding-left: 14px; }
}
@media (min-width: 541px) {
  .c1521a-shell { border-right: 1px solid rgba(222, 226, 230, .06); border-left: 1px solid rgba(222, 226, 230, .06); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}