body {
  font-family: 'Inter', Arial, sans-serif;
  background-color: #fafaf7;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  line-height: 1.6;
}

.container {
  padding: 20px;
  max-width: 728px;
  width: 100%;
  text-align: center;
}

input[type="text"] {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  margin-right: 10px;
  width: 70%;
}

button {
  padding: 10px 20px;
  background-color: #4caf50;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #45a049;
}

#result {
  margin-top: 10px;
  font-weight: bold;
}

mark {
  background-color: yellow;
  font-weight: bold;
}

.no-result {
  color: red;
}

.result-found {
  color: green;
}