body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
}

header {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 1rem;
}

.system-details {
    background-color: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.system-details ul {
    list-style-type: disc;
    padding-left: 30px;
}

.contact-info {
    background-color: white;
    padding: 20px;
    text-align: center;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

#contact-btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#contact-btn:hover {
    background-color: #45a049;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #333;
    color: white;
}