.mode-selector {
  margin-bottom: 1rem;
  padding: 0.5rem;
  border: 1px solid #ddd;
  background: #f8f8f8;
  border-radius: 4px;
}

.mode-selector label {
  margin-right: 1.5rem;
  font-weight: 500;
}

.auto-address-info {
  color: #555;
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.wallet-dialog h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.wallet-dialog input[readonly] {
  background: #efefef;
  cursor: not-allowed;
}

.wallet-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  border: 1px solid #ccc;
  padding: 1rem 2rem;
  z-index: 999;
  box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

.wallet-dialog.hidden {
  display: none;
}

.dialog-actions {
  margin-top: 1rem;
}

.dialog-actions button {
  margin-right: 0.5rem;
  padding: 0.5rem 1rem;
}

#passphrase {
  width: 100%;
  padding: 0.4rem 0.5rem;
  box-sizing: border-box;
}