.submit-button {
  padding: 0.5rem 1.5rem;
  background: #2c5282;
  color: white;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease;
  width: auto;
  max-width: 200px;
}
.submit-button:hover {
  background: #c4d3ea;
}

.icon {
  transition: 0.4s;
}
.icon:hover {
  transform: scale(1.1);
  transition: 0.4s;
}

.spinner {
  position: absolute;
  width: 20px;
  height: 20px;
  top: 10px;
  left: calc(50% - 100px);
  border: 3px solid #f3f3f3;
  border-top: 3px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.hidden {
  display: none;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.submit-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.loading-message {
  min-height: 24px; /* Prevents layout shift when messages change */
  font-size: 0.9rem;
  opacity: 0.8;
}