/* ============================================================
 *  USDT Reward Landing — styles
 *  Crypto dark theme · glassmorphism · USDT green
 * ============================================================ */

:root{
  --bg-0:#070d1a;
  --bg-1:#0b1428;
  --card:rgba(20,30,52,.72);
  --line:rgba(120,150,200,.16);
  --txt:#eaf1fb;
  --muted:#93a6c8;
  --grn:#26a17b;      /* Tether green */
  --grn-2:#3ddc97;
  --grn-glow:rgba(61,220,151,.55);
  --gold:#ffcf5c;
  --radius:22px;
  --shadow:0 30px 90px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg-0);
  color:var(--txt);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
  position:relative;
}

/* ---------- animated background ---------- */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;
  background:
    radial-gradient(900px 500px at 15% -10%, #12305a55, transparent 60%),
    radial-gradient(1000px 600px at 100% 0%, #0f5c4522, transparent 55%),
    linear-gradient(180deg,var(--bg-1),var(--bg-0));
}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;
  animation:float 14s ease-in-out infinite;}
.b1{width:420px;height:420px;background:#1f9d6e;top:-80px;left:-60px}
.b2{width:360px;height:360px;background:#2f6bd8;bottom:-90px;right:-50px;animation-delay:-4s}
.b3{width:300px;height:300px;background:#0e7c5a;top:40%;left:60%;animation-delay:-8s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(20px,-30px) scale(1.08)}}

.coins{position:absolute;inset:0}
.coin{position:absolute;top:-40px;color:var(--grn-2);font-weight:800;font-size:22px;opacity:.18;
  animation:fall linear infinite;text-shadow:0 0 12px var(--grn-glow)}
.coin:nth-child(1){left:6%;animation-duration:11s;animation-delay:0s;font-size:18px}
.coin:nth-child(2){left:16%;animation-duration:14s;animation-delay:-3s}
.coin:nth-child(3){left:27%;animation-duration:9s;animation-delay:-1s;font-size:26px}
.coin:nth-child(4){left:38%;animation-duration:13s;animation-delay:-6s}
.coin:nth-child(5){left:47%;animation-duration:16s;animation-delay:-2s;font-size:16px}
.coin:nth-child(6){left:57%;animation-duration:10s;animation-delay:-5s;font-size:28px}
.coin:nth-child(7){left:66%;animation-duration:12s;animation-delay:-8s}
.coin:nth-child(8){left:74%;animation-duration:15s;animation-delay:-3s;font-size:20px}
.coin:nth-child(9){left:82%;animation-duration:9s;animation-delay:-7s;font-size:24px}
.coin:nth-child(10){left:90%;animation-duration:13s;animation-delay:-1s}
.coin:nth-child(11){left:33%;animation-duration:17s;animation-delay:-9s;font-size:15px}
.coin:nth-child(12){left:52%;animation-duration:11s;animation-delay:-4s;font-size:19px}
@keyframes fall{0%{transform:translateY(-40px) rotate(0)}100%{transform:translateY(105vh) rotate(360deg)}}

/* ---------- top bar ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;
  padding:16px 22px;max-width:1080px;margin:0 auto;width:100%}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.3px;font-size:18px}
.brand .logo{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--grn-2),var(--grn));color:#04120c;font-weight:900;
  box-shadow:0 0 18px var(--grn-glow)}
.secure{font-size:13px;color:var(--muted);background:rgba(255,255,255,.04);
  border:1px solid var(--line);padding:6px 12px;border-radius:999px}

/* ---------- ad slots ---------- */
.ad-wrap{display:flex;justify-content:center;padding:6px 14px}
.ad-slot{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;padding:12px;border:1px dashed var(--line);border-radius:14px;
  background:rgba(255,255,255,.02);max-width:100%;overflow:auto}
.ad-tag{position:absolute;top:6px;left:10px;font-size:9px;letter-spacing:1px;text-transform:uppercase;
  color:var(--muted);opacity:.7}
.ad-468{min-height:74px;min-width:0}
.ad-300{margin:22px auto 6px;min-height:264px}
.ad-placeholder{color:var(--muted);font-size:12px;text-align:center;padding:16px 24px}
.ad-placeholder-box{display:grid;place-items:center;width:300px;max-width:100%;height:250px;
  border-radius:10px;background:repeating-linear-gradient(45deg,rgba(255,255,255,.02),rgba(255,255,255,.02) 12px,rgba(255,255,255,.04) 12px,rgba(255,255,255,.04) 24px)}

/* ---------- hero / prize card ---------- */
.hero{flex:1;display:flex;align-items:center;justify-content:center;padding:24px 16px 40px}
.prize-card{position:relative;width:100%;max-width:520px;text-align:center;
  background:var(--card);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px 28px;
  box-shadow:var(--shadow);animation:rise .7s cubic-bezier(.2,.8,.2,1) both}
.prize-card::before{content:"";position:absolute;inset:0;border-radius:var(--radius);padding:1px;
  background:linear-gradient(135deg,var(--grn-2),transparent 40%,transparent 60%,#2f6bd8);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:.6;pointer-events:none}
@keyframes rise{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:none}}

.badge{display:inline-block;font-size:13px;font-weight:700;color:var(--gold);
  background:rgba(255,207,92,.12);border:1px solid rgba(255,207,92,.3);
  padding:7px 16px;border-radius:999px;margin-bottom:16px}

.headline{margin:6px 0 12px;font-size:26px;line-height:1.25;font-weight:800}

.amount-wrap{position:relative;display:inline-block;margin:6px 0 4px;overflow:hidden}
.amount{font-size:54px;font-weight:900;letter-spacing:-1px;
  background:linear-gradient(135deg,#fff,var(--grn-2) 55%,var(--grn));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 4px 24px var(--grn-glow))}
.shine{position:absolute;top:0;left:-120%;width:60%;height:100%;transform:skewX(-20deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
  animation:shine 3.2s ease-in-out infinite}
@keyframes shine{0%{left:-120%}55%,100%{left:160%}}

.sub{color:var(--muted);font-size:15px;line-height:1.6;margin:14px auto 20px;max-width:400px}

/* ---------- countdown ---------- */
.countdown{position:relative;width:120px;height:120px;margin:8px auto 10px}
.ring{width:120px;height:120px;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:rgba(255,255,255,.08);stroke-width:8}
.ring-fg{fill:none;stroke:url(#g);stroke:var(--grn-2);stroke-width:8;stroke-linecap:round;
  transition:stroke-dashoffset 1s linear;filter:drop-shadow(0 0 6px var(--grn-glow))}
.count-num{position:absolute;inset:0;display:grid;place-items:center;font-size:44px;font-weight:900;
  color:#fff}

.redirect-note{color:var(--muted);font-size:13px;margin:6px 0 18px}

/* ---------- claim button ---------- */
.btn-claim{display:inline-flex;align-items:center;gap:10px;justify-content:center;
  width:100%;max-width:360px;padding:16px 22px;border-radius:14px;text-decoration:none;
  font-weight:800;font-size:16px;color:#04120c;
  background:linear-gradient(135deg,var(--grn-2),var(--grn));
  box-shadow:0 12px 30px var(--grn-glow);transition:transform .15s ease,box-shadow .15s ease;
  animation:pulse 2s ease-in-out infinite}
.btn-claim:hover{transform:translateY(-2px);box-shadow:0 16px 40px var(--grn-glow)}
.btn-claim:active{transform:translateY(0)}
.btn-claim .arrow{transition:transform .2s ease}
.btn-claim:hover .arrow{transform:translateX(4px)}
@keyframes pulse{0%,100%{box-shadow:0 12px 30px var(--grn-glow)}50%{box-shadow:0 12px 46px var(--grn-glow)}}

/* ---------- trust row ---------- */
.trust-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:22px;
  color:var(--muted);font-size:13px}
.trust-row span{background:rgba(255,255,255,.03);border:1px solid var(--line);
  padding:6px 12px;border-radius:999px}

/* ---------- footer ---------- */
.foot{text-align:center;color:var(--muted);font-size:12px;padding:18px 16px 26px;opacity:.8;max-width:640px;margin:0 auto}

/* ---------- responsive ---------- */
@media (max-width:560px){
  .headline{font-size:22px}
  .amount{font-size:44px}
  .prize-card{padding:28px 18px 22px}
  .secure{display:none}
  .ad-468{width:100%}
}