/* General Styles */
body {
    font-family: 'Arial', sans-serif;
    color: #333;
    margin: 0;
    padding: 0;
    background-color: #0f0f1f;
    line-height: 1.6;
}

.container {
    width: 90%;
    margin: 0 auto;
    max-width: 1200px;
}

h3 {
    font-size: 2em;
    color: #fff;
    text-align: center;
    margin-bottom: 1em;
}

p,
li {
    color: #ddd;
    font-size: 1.1em;
    margin-bottom: 1.2em;
}

/* Navbar Styles */
.navbar {
    background-color: #14142f;
    padding: 1rem 0;
}

.navbar .brand {
    color: #ffa500;
    font-size: 1.8em;
    font-weight: bold;
    margin: 0;
    display: inline-block;
}

.navbar .nav-links {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

.navbar .nav-links li {
    margin-left: 2rem;
}

.navbar .nav-links li a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1em;
}

.navbar .nav-links li a:hover {
    color: #ffa500;
}

.navbar .menu-toggle {
    display: none;
    font-size: 1.8em;
    color: #fff;
    cursor: pointer;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .navbar .nav-links {
        display: none; /* Hide the nav-links by default on mobile */
        flex-direction: column;
        position: absolute;
        background: #1a1a2e;
        top: 100%;
        left: 0;
        width: 100%;
        z-index: 999;
    }

    .navbar .nav-links.active {
        display: flex;
    }

    .navbar .nav-links li {
        margin: 1rem 0;
        text-align: center;
    }

    .navbar .menu-toggle {
        display: block;
    }

    .container {
        width: 100%;
    }
}

/* Section Styles */
.about-section,
.big-bang-section,
.discoveries-section,
.contact-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #131383, #020809);
}

.highlight {
    color: #ffa500;
    font-weight: bold;
}

.big-bang-image img {
    width: 100%;
    border-radius: 8px;
    margin-top: 2rem;
}

.discoveries-list {
    list-style-type: none;
}

.discoveries-list li {
    margin-bottom: 2rem;
}

.discoveries-list h4 {
    color: #ffa500;
    margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-section {
    text-align: center;
    background-color: #14142f;
}

.contact-section .btn {
    background-color: #ffa500;
    border-radius: 5px;
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
}

.contact-section .btn:hover {
    background-color: #ff8c00;
}