body {
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background-color: #f4f4f4;
}

.container {
  background: white;
  padding: 2em;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  width: 90%;
  max-width: 400px;
  text-align: center;
}

.input-group {
  display: flex;
  justify-content: center;
  margin-bottom: 1em;
}

select, input[type="text"] {
  padding: 0.6em;
  font-size: 1em;
  border: 1px solid #ccc;
  border-radius: 5px;
}

select {
  margin-right: 0.5em;
}

input[type="text"] {
  flex: 1;
  min-width: 0;
}

button {
  padding: 0.6em 1.2em;
  font-size: 1em;
  border: none;
  border-radius: 5px;
  background-color: #0078d4;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #005fa3;
}