body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #e0f2f1, #ffffff);
  margin: 0;
  padding: 0;
  color: #333;
}

header {
  background-color: #00695c;
  color: white;
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.container {
  max-width: 800px;
  margin: 40px auto;
  background: white;
  padding: 40px 30px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

h2 {
  color: #004d40;
  margin-bottom: 20px;
}

label {
  font-weight: 600;
  margin-top: 10px;
}

input, textarea {
  width: 100%;
  padding: 12px;
  margin-top: 5px;
  margin-bottom: 20px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 15px;
}

button {
  background-color: #00796b;
  color: white;
  padding: 12px 25px;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #004d40;
}

.success, .error {
  padding: 15px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 15px;
}

.success {
  background-color: #d4edda;
  color: #155724;
}

.error {
  background-color: #f8d7da;
  color: #721c24;
}

.contact-info {
  margin-top: 30px;
  font-size: 16px;
}