/* ===== Bengali Landing Page ===== */
:root {
  --bn-green-950: #03150e;
  --bn-green-900: #06241a;
  --bn-green-800: #0a3a28;
  --bn-green-700: #0f5236;
  --bn-gold: #f5c441;
  --bn-gold-2: #ffe27a;
  --bn-gold-deep: #b8862a;
  --bn-text: #f6f3e7;
  --bn-muted: #c8c1a4;
}

.bn-root {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--bn-text);
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(245,196,65,0.18), transparent 60%),
    radial-gradient(800px 500px at 10% 110%, rgba(15,82,54,0.7), transparent 60%),
    linear-gradient(180deg, var(--bn-green-950), var(--bn-green-900) 40%, var(--bn-green-950));
  font-family: 'Noto Sans Bengali', 'Hind Siliguri', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
.bn-root section { position: relative; z-index: 2; }

.particles, .coins { position: absolute; inset: 0; pointer-events: none; z-index: 1; overflow: hidden; }
.particles span {
  position: absolute; bottom: -10px; width: 4px; height: 4px; border-radius: 50%;
  background: var(--bn-gold);
  box-shadow: 0 0 8px var(--bn-gold), 0 0 16px rgba(245,196,65,0.6);
  animation: rise linear infinite; opacity: .85;
}
.coins span {
  position: absolute; bottom: -40px; font-size: 22px; color: var(--bn-gold);
  text-shadow: 0 0 12px rgba(245,196,65,0.7);
  animation: float-up linear infinite; opacity: .55;
}
@keyframes rise { 0%{transform:translateY(0);opacity:0} 10%{opacity:1} 100%{transform:translateY(-110vh);opacity:0} }
@keyframes float-up { 0%{transform:translateY(0) rotate(0);opacity:0} 15%{opacity:.8} 100%{transform:translateY(-120vh) rotate(360deg);opacity:0} }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px;
  background: linear-gradient(180deg, rgba(3,21,14,0.92), rgba(3,21,14,0.6));
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(245,196,65,0.15);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--bn-gold-2), var(--bn-gold-deep));
  color: #1b1200; font-weight: 900;
  box-shadow: 0 0 14px rgba(245,196,65,0.6);
}
.brand-name { font-size: 14px; color: var(--bn-gold-2); letter-spacing: .3px; }
.badge-live {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; font-size: 12px; border-radius: 999px;
  background: rgba(255,80,80,0.15); color: #ff8a8a;
  border: 1px solid rgba(255,80,80,0.4);
}
.badge-live i { width:7px; height:7px; border-radius:50%; background:#ff5252; box-shadow:0 0 8px #ff5252; animation: blink 1s infinite; }
@keyframes blink { 50%{opacity:.3} }

.hero { padding: 28px 20px 18px; text-align: center; }
.tag-official {
  display: inline-block; padding: 6px 14px; font-size: 12px;
  border-radius: 999px; margin-bottom: 16px;
  background: linear-gradient(90deg, rgba(245,196,65,0.18), rgba(245,196,65,0.05));
  border: 1px solid rgba(245,196,65,0.45);
  color: var(--bn-gold-2);
  box-shadow: 0 0 18px rgba(245,196,65,0.18);
}
.hero-title { font-size: clamp(28px, 8vw, 44px); font-weight: 800; line-height: 1.25; margin: 6px 0 10px; }
.gold-text {
  background: linear-gradient(180deg, #fff3b8 0%, var(--bn-gold) 45%, var(--bn-gold-deep) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 28px rgba(245,196,65,0.35);
  font-size: 1.35em; letter-spacing: .5px;
}
.hero-sub { color: var(--bn-muted); font-size: 14px; margin-bottom: 18px; }
.gift-row { display: flex; justify-content: center; gap: 18px; margin: 14px 0 22px; }
.gift {
  width: 56px; height: 56px; border-radius: 16px;
  display: grid; place-items: center; font-size: 28px;
  background: linear-gradient(160deg, rgba(245,196,65,0.18), rgba(15,82,54,0.4));
  border: 1px solid rgba(245,196,65,0.3);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35), inset 0 0 14px rgba(245,196,65,0.15);
  animation: floaty 3s ease-in-out infinite;
}
.gift.big { width: 76px; height: 76px; font-size: 40px; animation-delay: .4s; box-shadow: 0 0 32px rgba(245,196,65,0.45), inset 0 0 18px rgba(245,196,65,0.25); }
.gift:nth-child(3) { animation-delay: .8s; }
@keyframes floaty { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }

.cta-gold {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 32px; min-width: 260px;
  border: none; border-radius: 999px; cursor: pointer;
  font-size: 17px; font-weight: 800; color: #1b1200;
  background: linear-gradient(180deg, #fff1a8 0%, var(--bn-gold) 50%, var(--bn-gold-deep) 100%);
  box-shadow: 0 10px 30px rgba(245,196,65,0.45), inset 0 1px 0 rgba(255,255,255,0.6), inset 0 -2px 0 rgba(0,0,0,0.15);
  text-shadow: 0 1px 0 rgba(255,255,255,0.35);
}
.cta-gold.big { min-width: 280px; padding: 18px 32px; font-size: 18px; }
.cta-gold:active { transform: translateY(1px); }
.breathing { animation: breathe 1.8s ease-in-out infinite; }
@keyframes breathe {
  0%,100% { box-shadow: 0 10px 30px rgba(245,196,65,0.35), inset 0 1px 0 rgba(255,255,255,0.6); transform: scale(1); }
  50% { box-shadow: 0 14px 44px rgba(245,196,65,0.75), 0 0 0 6px rgba(245,196,65,0.12), inset 0 1px 0 rgba(255,255,255,0.7); transform: scale(1.035); }
}
.finger { display: inline-block; animation: tap 1.4s ease-in-out infinite; }
@keyframes tap { 0%,100%{transform:translateY(0) rotate(-10deg)} 50%{transform:translateY(-6px) rotate(0)} }
.cta-note { margin-top: 10px; color: var(--bn-muted); font-size: 12px; }

.countdown {
  position: relative;
  margin: 22px 16px; padding: 22px 16px 18px; border-radius: 22px;
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(245,196,65,0.18), transparent 60%),
    linear-gradient(160deg, rgba(10,58,40,0.95), rgba(3,21,14,0.95));
  border: 1px solid transparent;
  background-clip: padding-box;
  box-shadow: 0 14px 50px rgba(0,0,0,0.55), inset 0 0 60px rgba(245,196,65,0.06);
  overflow: hidden;
}
.countdown::before {
  content: ""; position: absolute; inset: 0; border-radius: 22px; padding: 1px;
  background: linear-gradient(135deg, rgba(245,196,65,0.7), rgba(245,196,65,0.1) 40%, rgba(245,196,65,0.7));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.cd-title {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  color: var(--bn-gold-2); font-size: 13px; font-weight: 700;
  letter-spacing: .5px; margin-bottom: 16px;
  text-transform: uppercase;
}
.cd-pulse {
  width: 8px; height: 8px; border-radius: 50%; background: #ff5252;
  box-shadow: 0 0 10px #ff5252, 0 0 20px rgba(255,82,82,.6);
  animation: blink 1s infinite;
}
.cd-grid {
  display: flex; align-items: center; justify-content: center; gap: 4px;
}
.cd-wrap { display: flex; align-items: center; gap: 4px; flex: 1; }
.cd-cell {
  position: relative; flex: 1;
  text-align: center; padding: 14px 4px 10px; border-radius: 14px;
  background:
    linear-gradient(180deg, #0d2a1f 0%, #061a12 100%);
  border: 1px solid rgba(245,196,65,0.35);
  box-shadow:
    inset 0 1px 0 rgba(245,196,65,0.25),
    inset 0 -2px 8px rgba(0,0,0,0.5),
    0 6px 18px rgba(0,0,0,0.4);
  overflow: hidden;
}
.cd-cell::after {
  content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,196,65,0.35), transparent);
  pointer-events: none;
}
.cd-shine {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, transparent 50%);
  pointer-events: none;
}
.cd-num {
  position: relative;
  font-size: clamp(26px, 8vw, 36px); font-weight: 900; line-height: 1;
  background: linear-gradient(180deg, #fff6c8 0%, var(--bn-gold) 55%, var(--bn-gold-deep) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 22px rgba(245,196,65,0.55);
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}
.cd-lbl {
  font-size: 10px; color: var(--bn-muted); margin-top: 6px;
  text-transform: uppercase; letter-spacing: 1px;
}
.cd-sep {
  color: var(--bn-gold); font-size: 22px; font-weight: 900;
  text-shadow: 0 0 12px rgba(245,196,65,0.7);
  animation: blink 1s infinite;
  align-self: center; margin-top: -8px;
}
.cd-foot {
  text-align: center; margin-top: 14px; font-size: 12px;
  color: #ffdd88; letter-spacing: .3px;
}

.reward { padding: 8px 16px 4px; }
.reward-card {
  position: relative; padding: 24px 18px; border-radius: 22px; text-align: center;
  background: radial-gradient(140% 90% at 50% 0%, rgba(245,196,65,0.18), transparent 60%), linear-gradient(180deg, #0a3a28, #03150e);
  border: 1px solid rgba(245,196,65,0.4);
  box-shadow: 0 18px 50px rgba(0,0,0,0.55), 0 0 0 1px rgba(245,196,65,0.08) inset;
}
.reward-top {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: rgba(245,196,65,0.15); color: var(--bn-gold-2);
  font-size: 12px; border: 1px solid rgba(245,196,65,0.3);
}
.reward-amount {
  margin: 10px 0 4px; font-size: clamp(40px, 12vw, 64px); font-weight: 900;
  background: linear-gradient(180deg, #fff3b8, var(--bn-gold) 50%, var(--bn-gold-deep));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 30px rgba(245,196,65,0.35);
}
.reward-sub { color: var(--bn-muted); margin-bottom: 14px; }
.reward-list { list-style: none; padding: 0; margin: 12px 0 18px; display: grid; gap: 6px; font-size: 14px; color: #e8e4cf; }

.reviews { padding: 24px 16px 8px; }
.section-title { text-align: center; font-size: 20px; margin-bottom: 14px; color: var(--bn-gold-2); }
.review-track { position: relative; }
.review-card {
  padding: 16px; border-radius: 16px;
  background: linear-gradient(180deg, rgba(10,58,40,0.9), rgba(3,21,14,0.9));
  border: 1px solid rgba(245,196,65,0.2);
  animation: fadeSlide .5s ease;
}
@keyframes fadeSlide { from{opacity:0; transform: translateX(20px)} to{opacity:1; transform:none} }
.rv-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.rv-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  object-fit: cover; display: block;
  border: 2px solid var(--bn-gold);
  box-shadow: 0 0 12px rgba(245,196,65,0.45), 0 4px 12px rgba(0,0,0,0.4);
}
.rv-name { font-weight: 700; font-size: 14px; }
.rv-city { font-size: 12px; color: var(--bn-muted); }
.rv-stars { margin-left: auto; color: var(--bn-gold); font-size: 14px; letter-spacing: 1px; }
.rv-text { font-size: 14px; line-height: 1.55; color: #ece8d2; margin: 0; }
.rv-dots { display: flex; justify-content: center; gap: 6px; margin-top: 12px; }
.rv-dots span { width: 8px; height: 8px; border-radius: 50%; background: rgba(245,196,65,0.25); cursor: pointer; transition: all .25s; }
.rv-dots span.on { background: var(--bn-gold); width: 22px; border-radius: 4px; box-shadow: 0 0 8px var(--bn-gold); }

.trust {
  margin: 22px 16px 8px; padding: 16px 10px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(10,58,40,0.7), rgba(3,21,14,0.7));
  border: 1px solid rgba(245,196,65,0.18);
}
.trust-item { text-align: center; font-size: 11px; line-height: 1.3; color: #e8e4cf; }
.ti-icon { font-size: 24px; margin-bottom: 4px; filter: drop-shadow(0 0 8px rgba(245,196,65,0.4)); }

.foot-cta { padding: 24px 16px 16px; text-align: center; display: grid; gap: 12px; place-items: center; }
.tg-link {
  display: inline-block; color: var(--bn-gold-2); text-decoration: none;
  font-size: 14px; padding: 10px 18px; border-radius: 999px;
  border: 1px solid rgba(245,196,65,0.4);
  background: rgba(245,196,65,0.06);
}
.footer { text-align: center; padding: 16px; color: var(--bn-muted); font-size: 12px; }
.footer-sub { opacity: .8; margin-top: 4px; }

.float-support {
  position: fixed; right: 16px; bottom: 18px; z-index: 50;
  width: 58px; height: 58px; border-radius: 50%; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--bn-gold-2), var(--bn-gold-deep));
  color: #1b1200; font-size: 26px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.45);
  animation: pulseRing 2s infinite;
}
@keyframes pulseRing {
  0% { box-shadow: 0 12px 28px rgba(0,0,0,0.45), 0 0 0 0 rgba(245,196,65,0.55); }
  70% { box-shadow: 0 12px 28px rgba(0,0,0,0.45), 0 0 0 18px rgba(245,196,65,0); }
  100% { box-shadow: 0 12px 28px rgba(0,0,0,0.45), 0 0 0 0 rgba(245,196,65,0); }
}

@media (min-width: 768px) {
  .hero { padding: 60px 24px 30px; }
  .countdown, .reward, .reviews, .trust, .foot-cta { max-width: 720px; margin-left: auto; margin-right: auto; }
  .gift { width: 72px; height: 72px; font-size: 34px; }
  .gift.big { width: 96px; height: 96px; font-size: 50px; }
}

/* Hero visual with model */
.hero-visual {
  position: relative;
  margin: 18px auto 22px;
  width: min(360px, 90vw);
  aspect-ratio: 1 / 1.05;
  display: grid; place-items: end center;
}
.hero-model {
  position: relative; z-index: 3;
  width: 100%; height: 100%; object-fit: contain;
  filter: drop-shadow(0 18px 30px rgba(0,0,0,0.55)) drop-shadow(0 0 24px rgba(245,196,65,0.35));
  animation: floaty 5s ease-in-out infinite;
}
.halo {
  position: absolute; inset: 8% 5% 12% 5%; z-index: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 55%, rgba(245,196,65,0.45) 0%, rgba(245,196,65,0.15) 35%, transparent 65%);
  filter: blur(8px);
  animation: pulseHalo 3s ease-in-out infinite;
}
@keyframes pulseHalo { 0%,100%{opacity:.75; transform:scale(1)} 50%{opacity:1; transform:scale(1.05)} }

.mandala {
  position: absolute; z-index: 2; top: 8%;
  font-size: 70px; color: var(--bn-gold);
  text-shadow: 0 0 18px rgba(245,196,65,0.7);
  opacity: .55;
  animation: spin 18s linear infinite;
}
.mandala-l { left: -6%; }
.mandala-r { right: -6%; animation-direction: reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

.floating-coin {
  position: absolute; z-index: 4;
  font-size: 28px;
  filter: drop-shadow(0 0 12px rgba(245,196,65,0.7));
  animation: floaty 3.5s ease-in-out infinite;
}
.c1 { top: 10%; left: 4%; animation-delay: 0s; font-size: 32px; }
.c2 { top: 22%; right: 2%; animation-delay: .6s; font-size: 34px; }
.c3 { bottom: 28%; left: 0%; animation-delay: 1.2s; font-size: 30px; }
.c4 { top: 50%; right: 0%; animation-delay: 1.8s; font-size: 26px; color: var(--bn-gold-2); }

@media (min-width: 768px) {
  .hero-visual { width: 420px; }
  .mandala { font-size: 96px; }
}

/* Bengali ornamental pattern background */
.bn-pattern {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(245,196,65,0.08) 0%, transparent 25%),
    radial-gradient(circle at 80% 70%, rgba(245,196,65,0.06) 0%, transparent 30%),
    repeating-linear-gradient(45deg, transparent 0 60px, rgba(245,196,65,0.025) 60px 61px),
    repeating-linear-gradient(-45deg, transparent 0 60px, rgba(245,196,65,0.025) 60px 61px);
  opacity: .9;
}
.bn-paisley {
  position: absolute; z-index: 0; pointer-events: none;
  color: var(--bn-gold);
  opacity: .07;
  font-size: 220px;
  text-shadow: 0 0 40px rgba(245,196,65,0.4);
  animation: spin 60s linear infinite;
}
.bp-1 { top: 8%; left: -40px; }
.bp-2 { top: 55%; right: -50px; animation-direction: reverse; }
.bp-3 { bottom: 10%; left: 30%; font-size: 160px; opacity: .05; }

/* Payment badges */
.payments {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 8px; margin: 16px auto 0; font-size: 12px; color: var(--bn-muted);
}
.pm {
  padding: 6px 12px; border-radius: 8px; font-size: 12px; font-weight: 800;
  color: #fff; letter-spacing: .3px;
  box-shadow: 0 4px 12px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.2);
}
.pm.bkash { background: linear-gradient(135deg, #e2136e, #a30f54); }
.pm.nagad { background: linear-gradient(135deg, #f37021, #c2410c); }
.pm.rocket { background: linear-gradient(135deg, #8b1a8b, #5b1066); }

/* Bangladesh flag background watermark */
.bd-flag-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(0,106,78,0.25) 0%, transparent 60%),
    linear-gradient(180deg, rgba(0,106,78,0.18) 0%, transparent 35%);
  overflow: hidden;
}
.bd-flag-circle {
  position: absolute;
  top: 18%; left: 50%;
  transform: translate(-55%, -50%);
  width: 280px; height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(244,42,65,0.55), rgba(206,17,38,0.35) 60%, transparent 75%);
  filter: blur(20px);
  opacity: .55;
  animation: flagPulse 6s ease-in-out infinite;
}
@keyframes flagPulse {
  0%,100% { opacity: .45; transform: translate(-55%, -50%) scale(1); }
  50% { opacity: .65; transform: translate(-55%, -50%) scale(1.08); }
}

/* Reward card with model image */
.reward-card { overflow: hidden; }
.reward-model {
  position: absolute;
  right: -40px; bottom: -10px;
  width: 180px; height: auto;
  opacity: .85;
  pointer-events: none;
  filter: drop-shadow(0 8px 18px rgba(0,0,0,0.45)) drop-shadow(0 0 18px rgba(245,196,65,0.3));
  z-index: 1;
  animation: floaty 5s ease-in-out infinite;
}
.reward-card > *:not(.reward-model) { position: relative; z-index: 2; }
.reward-flag {
  display: inline-block; margin-bottom: 8px;
  padding: 4px 12px; border-radius: 999px;
  background: linear-gradient(90deg, rgba(0,106,78,0.4), rgba(244,42,65,0.3));
  border: 1px solid rgba(245,196,65,0.4);
  font-size: 11px; color: #fff;
  letter-spacing: .5px; font-weight: 700;
}
@media (max-width: 480px) {
  .reward-model { width: 130px; right: -30px; opacity: .55; }
}
@media (min-width: 768px) {
  .reward-model { width: 240px; right: 0; bottom: 0; opacity: 1; }
  .reward-card { padding-right: 220px; text-align: left; }
}