body {
  margin: 0;
  font-family: Arial, sans-serif;
  min-height: 100vh;
  background: url("/assets/DefaultBackground.png") no-repeat center center fixed;
  background-size: contain;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
}

.card {
  position: relative;
  z-index: 1;

  background: #ffffff;
  padding: 32px 28px;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);

  max-width: 420px;
  width: 90%;
  text-align: center;
}

.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid #e5e7eb;
  border-top: 4px solid #2563eb;
  border-radius: 50%;
  margin: 0 auto 20px;
  animation: spin 1s linear infinite;
}

.message {
  font-size: 16px;
  color: #1f2937;
}

.error {
  color: #b91c1c;
  font-size: 14px;
  margin-top: 14px;
}

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