:root{
  --night:#0f0a2a; --plum:#2b1250; --gold:#ffc83d; --gold-d:#d98e04;
  --rose:#ff4d8d; --teal:#19d3c5; --ink:#fff7e0;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family:"Hind Siliguri","Noto Sans Bengali","Kalpurush","Segoe UI",system-ui,sans-serif;
  color:var(--ink);background:var(--night);overflow-x:hidden;
  padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
.bg{
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(60% 50% at 50% 38%,rgba(255,77,141,.35),transparent 70%),
    radial-gradient(50% 50% at 15% 90%,rgba(25,211,197,.28),transparent 70%),
    radial-gradient(50% 50% at 90% 10%,rgba(255,200,61,.22),transparent 70%),
    linear-gradient(160deg,#0f0a2a,#2b1250 55%,#14083a);
  background-size:140% 140%;animation:drift 18s ease-in-out infinite alternate;
}
@keyframes drift{to{background-position:100% 100%}}
.coins{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.coin{
  position:absolute;bottom:-40px;width:var(--s);height:var(--s);border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#fff3b0,var(--gold) 55%,var(--gold-d));
  box-shadow:0 0 12px rgba(255,200,61,.5);opacity:.0;
  animation:rise var(--d) linear var(--delay) infinite;
}
@keyframes rise{0%{transform:translateY(0) rotateY(0);opacity:0}10%{opacity:.7}90%{opacity:.7}100%{transform:translateY(-110vh) rotateY(720deg);opacity:0}}

.top{display:flex;justify-content:space-between;align-items:center;padding:14px 18px}
.brand{font-size:22px;font-weight:800;letter-spacing:.2px;color:var(--gold);text-shadow:0 2px 12px rgba(255,200,61,.45)}
.top-right{display:flex;align-items:center;gap:10px}
.balance{display:flex;flex-direction:column;align-items:flex-end;line-height:1.1;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:6px 14px;border-radius:14px;backdrop-filter:blur(6px)}
.balance span{font-size:11px;opacity:.75}
.balance b{font-size:18px;color:var(--gold)}
.icon-btn{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.1);color:var(--ink);font-size:20px;cursor:pointer;transition:.2s}
.icon-btn:hover{background:rgba(255,255,255,.2)}
.icon-btn.off{opacity:.45;text-decoration:line-through}

.stage{display:flex;flex-direction:column;align-items:center;padding:8px 16px 40px}
.wheel-wrap{position:relative;width:min(92vw,520px);aspect-ratio:1}
.ring{position:absolute;inset:-14px;border-radius:50%;
  background:conic-gradient(from 0deg,var(--gold),#fff3b0,var(--gold-d),var(--gold),#fff3b0,var(--gold-d),var(--gold));
  box-shadow:0 0 50px rgba(255,200,61,.45),0 20px 60px rgba(0,0,0,.5);z-index:0}
.ring::after{content:"";position:absolute;inset:12px;border-radius:50%;background:var(--night)}
#wheel{position:absolute;inset:0;width:100%;height:100%;border-radius:50%;z-index:1}
.pointer{position:absolute;top:-30px;left:50%;width:44px;height:58px;margin-left:-22px;z-index:4;
  background:linear-gradient(#ff6a8e,#e0185a);clip-path:polygon(50% 100%,0 15%,15% 0,85% 0,100% 15%);
  filter:drop-shadow(0 4px 6px rgba(0,0,0,.5))}
.pointer.tick{animation:tick .12s}
@keyframes tick{50%{transform:rotate(-14deg)}}
.spin-btn{position:absolute;z-index:5;top:50%;left:50%;width:25%;aspect-ratio:1;transform:translate(-50%,-50%);
  border-radius:50%;border:5px solid #fff3b0;cursor:pointer;font:800 clamp(16px,4.6vw,24px) inherit;font-family:inherit;
  color:#3a1500;background:radial-gradient(circle at 35% 30%,#fff3b0,var(--gold) 55%,var(--gold-d));
  box-shadow:0 6px 20px rgba(0,0,0,.5),inset 0 -6px 12px rgba(160,90,0,.35);transition:transform .15s,box-shadow .15s;
  animation:pulse 1.8s ease-in-out infinite}
.spin-btn:hover{transform:translate(-50%,-50%) scale(1.06)}
.spin-btn:active{transform:translate(-50%,-50%) scale(.95)}
.spin-btn:disabled{animation:none;filter:grayscale(.5) brightness(.85);cursor:not-allowed}
@keyframes pulse{50%{box-shadow:0 0 0 14px rgba(255,200,61,.18),0 6px 20px rgba(0,0,0,.5)}}
.hint{margin-top:30px;font-size:16px;opacity:.85;min-height:24px;text-align:center}

.history{margin-top:22px;width:min(92vw,520px);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  border-radius:18px;padding:14px 16px;backdrop-filter:blur(6px)}
.history h2{font-size:15px;margin-bottom:8px;color:var(--gold)}
.history ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.history li{background:rgba(255,200,61,.16);border:1px solid rgba(255,200,61,.4);padding:4px 12px;border-radius:999px;font-weight:700}
.history li.empty{background:none;border:none;opacity:.6;font-weight:400;padding:0}

.modal{position:fixed;inset:0;z-index:20;display:grid;place-items:center;background:rgba(10,5,30,.7);backdrop-filter:blur(4px);padding:20px}
.modal[hidden]{display:none}
.card{width:min(340px,100%);text-align:center;padding:30px 24px;border-radius:26px;
  background:linear-gradient(160deg,#3a1b6e,#1d0d45);border:2px solid var(--gold);
  box-shadow:0 0 60px rgba(255,200,61,.4);animation:pop .5s cubic-bezier(.2,1.5,.4,1)}
@keyframes pop{from{transform:scale(.6);opacity:0}}
.medal{width:70px;height:70px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;font-size:36px;font-weight:800;color:#3a1500;
  background:radial-gradient(circle at 35% 30%,#fff3b0,var(--gold) 55%,var(--gold-d));animation:spinY 2s linear infinite}
@keyframes spinY{to{transform:rotateY(360deg)}}
.card p{opacity:.85}
.card h3{font-size:60px;color:var(--gold);margin:6px 0 18px;text-shadow:0 4px 20px rgba(255,200,61,.6)}
.again{border:none;cursor:pointer;font:700 17px inherit;font-family:inherit;padding:12px 26px;border-radius:999px;
  color:#3a1500;background:linear-gradient(var(--gold),var(--gold-d));box-shadow:0 6px 16px rgba(0,0,0,.4)}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:30;width:100%;height:100%}
@media (prefers-reduced-motion:reduce){.coin,.bg,.spin-btn,.medal{animation:none}}