.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}

.modal-content {
  background-color: #fefefe;
  margin: 15% auto;
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
}

.close-button {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close-button:hover, .close-button:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

.link-list {
  margin-top: 10px;
}

.link-item-scan {
  display: flex;
  align-items: center;
  margin-bottom: 5px;
}

.link-input {
  flex: 1;
  margin-right: 5px;
}

.remove-link-button {
  background-color: #f44336;
  border: none;
  color: white;
  padding: 5px 10px;
  cursor: pointer;
}

.remove-link-button:hover {
  background-color: #d32f2f;
}