* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  color: #fff;
  background:
    linear-gradient(rgba(0,0,0,.7), rgba(0,0,0,.7)),
    url("https://cdn.qriscloud.asia/files/images/aladin66/luckyspin/luckyspin.webp")
    center / cover no-repeat;
}

/* FIREWORK */
#fireworks {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.app {
  position: relative;
  z-index: 5;
  max-width: 420px;
  margin: auto;
  padding-bottom: 30px;
}

/* LOGO */
.top { padding: 16px; }
.logo-bg {
  max-width: 280px;
  margin: 0 auto 12px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(0,0,0,.65);
}
.spin-logo-big {
  width: 100%;
  display: block;
}

/* SPIN */
.spin-area {
  padding: 10px 16px;
  text-align: center;
}

.wheel-box {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto 14px;
}

canvas { display: block; }

.pointer {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
  border-bottom: 18px solid gold;
  z-index: 10;
}

.voucher {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  margin-bottom: 10px;
}

button {
  width: 100%;
  padding: 13px;
  border-radius: 10px;
  border: none;
  font-weight: 700;
  cursor: pointer;
}

#spinBtn { background: linear-gradient(135deg, gold, orange); }
.winnerBtn { background: #1e88e5; color: #fff; margin-top: 8px; }
.chatBtn { background: #25d366; margin-top: 8px; }

#result {
  margin-top: 10px;
  font-weight: bold;
  color: gold;
}