body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(to right, #1a1a1a, #333333);
  color: #f0b90b; /* Gold-like color for crypto theme */
  text-align: center;
  animation: fadeIn 1.5s ease-in-out;
}

h1, h2 {
  margin-top: 30px;
  color: #ffffff;
  font-weight: 600;
}

input {
  padding: 12px;
  margin-top: 20px;
  font-size: 16px;
  border: 1px solid #555555;
  border-radius: 5px;
  background-color: #222222;
  color: #ffffff;
  outline: none;
  transition: border-color 0.3s ease;
}

input:focus {
  border-color: #f0b90b;
}

button {
  padding: 12px 25px;
  margin: 20px;
  font-size: 18px;
  font-weight: bold;
  background: #f0b90b;
  color: #1a1a1a;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s, background-color 0.3s;
}

button:hover {
  transform: scale(1.05);
  background-color: #d9a30a;
}

.balance {
  font-size: 22px;
  margin: 20px;
  color: #ffffff;
}

#animation-text {
  font-size: 18px;
  color: #00ff99; /* Bright green for success messages */
  height: 30px;
  margin-top: 10px;
  transition: opacity 0.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}