body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at top, #000, #111);
  color: #fff;
  text-align: center;
  overflow-x: hidden;
}

/* ==== BANNER ==== */
.banner {
  background: linear-gradient(135deg, rgba(0,0,0,0.95), rgba(30,30,30,0.9));
  padding: 25px 15px;
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid rgba(212,175,55,0.4);
  box-shadow: 0 5px 20px rgba(212,175,55,0.15);
}

.banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(212,175,55,0.15), transparent 70%);
  animation: rotate 25s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.logo {
  font-size: 18px;
  color: #d4af37;
  text-shadow: 0 0 8px rgba(212,175,55,0.6);
}

.logo img {
  max-width: 110px;
  height: auto;
}

.banner .judul {
  font-size: 48px;
  font-family: 'Orbitron', sans-serif;
  background: linear-gradient(90deg, #ffd700, #d4af37, #b8860b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 10px 0;
  animation: shimmer 5s linear infinite;
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.banner .hadiah {
  font-size: 20px;
  color: #eee;
  text-shadow: 0 0 6px rgba(212,175,55,0.5);
  margin-top: 8px;
}

.banner .hadiah span {
  color: #ffd700;
  font-size: 32px;
  font-weight: bold;
  text-shadow: 0 0 10px rgba(212,175,55,0.8);
}

.sub {
  font-size: 16px;
  color: #d4af37;
  margin-top: 5px;
}

/* ==== PEMENANG ==== */
.pemenang {
  padding: 20px 10px;
}

.pemenang h2 {
  font-size: 24px;
  margin-bottom: 15px;
  color: #ffd700;
  text-shadow: 0 0 6px rgba(212,175,55,0.6);
}

.tab {
  margin: 15px 0;
}

.tab button {
  background: linear-gradient(90deg, #d4af37, #ffd700);
  border: none;
  padding: 10px 20px;
  margin: 5px;
  border-radius: 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 14px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #000;
}

.tab button.active, .tab button:hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px #ffd700;
}

.list {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.list.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* GRID PEMENANG */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 10px;
  justify-content: center;
  max-width: 1000px;
  margin: auto;
}

.card {
  background: linear-gradient(145deg, #111, #000);
  border: 1px solid #d4af37;
  border-radius: 10px;
  padding: 10px;
  font-weight: bold;
  color: #ffd700;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  font-size: 14px;
}

.card:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 12px rgba(212,175,55,0.6);
}

/* ==== RESPONSIVE ==== */
@media (max-width: 768px) {
  .banner .judul {
    font-size: 32px;
  }
  .banner .hadiah {
    font-size: 16px;
  }
  .banner .hadiah span {
    font-size: 22px;
  }
  .sub {
    font-size: 14px;
  }
  .grid {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  }
  .card {
    font-size: 12px;
    padding: 8px;
  }
}