/* Material 3 Adapted Styles */
body {
    font-family: 'Roboto', sans-serif;
    background-color: #fefefe; /* Material 3 light background */
    color: #1C1B1F; /* Dark text for contrast */
    margin: 0;
    padding: 0;
}

.container {
    text-align: center;
    background: #FFFFFF; /* Light surface color */
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); /* Material 3 subtle elevation */
    border-radius: 12px;
    margin: 24px;
}

h1 {
    color: #6750A4; /* Material 3 primary color */
    font-weight: 500;
}

p {
    font-size: 1.2em;
    margin-bottom: 20px;
    color: #49454F; /* Subtle body text color */
}

.button {
    display: inline-block;
    padding: 12px 24px;
    margin: 10px 0;
    font-size: 1em;
    color: #FFFFFF;
    background-color: #6750A4; /* Primary color */
    border: none;
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.15); /* Elevated button effect */
}

.button:hover {
    background-color: #4F3D91;
    box-shadow: 0px 6px 8px rgba(0, 0, 0, 0.2); /* Increased elevation on hover */
}

.pdf-viewer {
    margin-top: 20px;
    width: 100%;
    height: 500px;
    border: 1px solid rgba(0, 0, 0, 0.12); /* Light border */
    border-radius: 8px; /* Rounded corners for Material 3 style */
}

.update-info {
    margin-top: 20px;
    font-size: 0.9em;
    color: #6E6E73;
}

.link-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.link-wrapper span {
    font-size: 0.8em;
    color: #49454F;
}

.smalltext {
    font-size: 0.7em;
    color: #6E6E73;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background-color: #6750A4; /* Primary color for nav */
    color: #FFFFFF;
}

.logo img {
    max-height: 50px; /* Logo size */
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 15px;
    margin: 0;
}

.nav-menu li {
    display: inline;
}

.nav-menu a {
    text-decoration: none;
    color: #FFFFFF;
    font-weight: 500;
}

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

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #FFFFFF;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s;
}

nav ul li a:hover {
    color: #BB86FC; /* Hover color */
    text-decoration: underline;
}

/* Dark mode with Material 3 adjustments */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #E1E1E1;
    }
    .container {
        background: #1C1C1E;
        box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
    }
    .button {
        background-color: #BB86FC; /* Secondary color for dark mode */
        color: #121212;
    }
    .button:hover {
        background-color: #9E67D5;
    }
    .pdf-viewer {
        border: 1px solid #444;
    }
    .update-info, .smalltext {
        color: #AAAAAA;
    }
    nav {
        background: #333;
    }
    nav ul li a {
        color: #BB86FC; /* Adaptive link color for dark mode */
    }
}