body {
    background-color: #f4f7f6;
    font-family: 'Arial', sans-serif;
}

.container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 50px auto;
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    font-weight: bold;
    color: #555;
    display: block;
    margin-bottom: 5px;
}

.form-control {
    width: 100%;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
    outline: none;
}

button {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    border-radius: 4px;
    border: none;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #007bff;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-info {
    background-color: #17a2b8;
}

.btn-info:hover {
    background-color: #117a8b;
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

button:focus {
    outline: none;
}

