body {
  font-family: sans-serif;
  background-color: white;
  color: #1f2937;
}

header {
  background-color: #1f2937;
  color: white;
  padding: 1rem;
}

button:hover {
  background-color: #2563eb;
}

input, button {
  border-radius: 0.5rem;
  padding: 0.75rem;
}

.bg-blue-600 {
  background-color: #2563eb;
  color: white;
}

.text-green-600 {
  color: #16a34a;
}

.text-center {
  text-align: center;
}

.countdown {
  font-weight: bold;
  background-color: #fef9c3;
  color: #92400e;
  border: 1px solid #fde68a;
  padding: 7px;
  border-radius: 8px;
  text-align: center;
}

.pulse {
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.07); }
  100% { transform: scale(1); }
}

#viewer-count {
  animation: pulse 1.5s infinite;
}