body, html {
  height: 100%;
  margin: 0;
  font-family: Arial, sans-serif;
}

.main-content {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: #f7f7f7;
  transition: filter 0.3s;
}

.popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 300px;
  padding: 20px;
  background: white;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  text-align: center;
  border-radius: 8px;
  display: none;
  animation: wiggle 0.5s ease forwards; /* Enhanced shadow with more spread and opacity */
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

@keyframes wiggle {
  0%, 100% { transform: translate(-50%, -50%) rotate(-3deg); }
  50% { transform: translate(-50%, -50%) rotate(3deg); }
}

.blurred {
  filter: blur(5px);
}