/* CSS Variables for Easy Customization */
:root {
    --background-color: #1c1c1c;    /* Dark gray background */
    --text-color: #f4f4f4;         /* Light gray text */
    --heading-color: #ffffff;      /* White headings */
    --accent-color: #007BFF;       /* Professional blue accent */
    --nav-background: #333333;     /* Slightly lighter nav background */
    --footer-background: #333333;  /* Footer background */
}

/* General Styles */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

/* Navigation Bar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--nav-background);
    z-index: 1000;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: space-around;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 8px; /* Space between icon and text */
    transition: background-color 0.3s ease;
}

nav a:hover, nav a.active {
    background-color: var(--accent-color);
}

/* Sections */
section {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 60px 20px;
    animation: fadeIn 0.5s ease-in-out;
}

section.visible {
    display: flex;
}

.content {
    max-width: 800px;
    width: 100%;
    text-align: left;
}
.content {
    text-align: center;
}

.content ul {
    list-style-position: inside;
    padding-left: 0;
}


h1, h2 {
    color: var(--heading-color);
}

/* Footer */
footer {
    background-color: var(--footer-background);
    color: var(--text-color);
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}

/* Fade-In Animation */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Responsive Design */
@media (max-width: 600px) {
    nav ul {
        flex-direction: column;
    }
    nav a {
        padding: 10px;
    }
}