body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f7f9fb;
  margin: 0;
  padding: 40px 20px;
}

.container {
  background: #ffffff;
  padding: 40px;
  max-width: 600px;
  margin: 0 auto;
  border-radius: 10px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  text-align: center;
}

h1 {
  color: #004225;
  font-size: 28px;
  margin-bottom: 20px;
}

p {
  color: #555;
  font-size: 16px;
  line-height: 1.6;
}

form {
  margin-top: 20px;
}

input[type="text"] {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-bottom: 20px;
  box-sizing: border-box;
}

button {
  padding: 12px 25px;
  font-size: 16px;
  background-color: #004225;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

button:hover {
  background-color: #003218;
}

.quote-message-box {
  background-color: #e9f5ef;
  color: #2c3e50;
  padding: 25px 30px;
  border-radius: 10px;
  margin-top: 25px;
  font-size: 16px;
  line-height: 1.6;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  text-align: left;
}

.error-message {
  color: red;
  font-weight: bold;
  margin-top: 20px;
}

.book-button {
  background-color: #28a745;
  color: white;
  padding: 12px 24px;
  font-size: 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  display: inline-block; /* important for centering inside text-align: center */
}

.book-button:hover {
  background-color: #218838;
}