/* Reset some default styles */
body, h1, p, ul, li {
    margin: 0;
    padding: 0;
}

/* Basic styling */
body {
    font-family: Arial, sans-serif;
    background: linear-gradient(to bottom, #87CEFA, #1E90FF);
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: #000;
    opacity: 0.9;
    position: relative;
}

header {
    background-color: rgba(51, 51, 51, 0.8);
    color: #000;
    padding: 10px 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.9);
    color: #000;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    
    /* Center the container both vertically and horizontally */
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Make the footer sticky to the bottom */
footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: rgba(51, 51, 51, 0.8);
    color: #000;
    text-align: center;
    padding: 10px 0;
}

/* Display list items in the navigation menu horizontally */
nav ul {
    list-style: none;
    text-align: center;
}

nav li {
    display: inline-block;
    margin-right: 20px;
}

nav a {
    text-decoration: none;
    color: #000;
    font-weight: bold;
    transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
}

/* Add hover effect for navigation links */
nav a:hover {
    background-color: rgba(255, 255, 255, 0.3);
    color: #000;
}

/* ... (rest of your CSS styles) ... */