body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 500px;
  margin: 40px auto;
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
h1 {
  text-align: center;
  color: #333;
}
form {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}
input[type="text"] {
  flex: 1;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
button {
  padding: 8px 16px;
  background: #007bff;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
button:hover {
  background: #0056b3;
}
ul {
  list-style: none;
  padding: 0;
}
li {
  background: #f9f9f9;
  margin-bottom: 8px;
  padding: 10px;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
li button {
  background: #dc3545;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
}
li button:hover {
  background: #a71d2a;
}