body {
  background-color: #f5f5f5;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  padding: 40px;
  margin: 0;
}

/* Khung chứa Form */
.form-container {
  background-color: #cccccc;
  padding: 40px;
  width: 100%;
  max-width: 800px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

h1 {
  font-size: 32px;
  margin-top: 0;
}

.desc {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 30px;
}

.row {
  display: flex;
  gap: 20px;
  margin-bottom: 15px;
}

.field {
  flex: 1;
  display: flex;
  flex-direction: column;
}

label {
  font-weight: bold;
  margin-bottom: 5px;
}

input,
select {
  padding: 10px;
  border: 1px solid #fff;
  border-radius: 4px;
  font-size: 14px;
}

button {
  width: 100%;
  background-color: #4caf50;
  color: white;
  border: none;
  padding: 15px;
  font-weight: bold;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 20px;
}

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