/* Go Back Button */
a.back-btn {
    display: inline-block;
    padding: 12px 25px;
    font-size: 1.2em;
    color: white;
    background-color: #141414; /* Solid black background */
    text-decoration: none;
    border-radius: 8px;
    margin-top: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3); /* Subtle shadow */
    transition: background-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

a.back-btn:hover {
    background-color: #333333; /* Dark gray background on hover */
    transform: translateY(-3px); /* Lift effect */
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4); /* Enhanced shadow on hover */
}

a.back-btn:active {
    background-color: #000000; /* Even darker background on click */
    transform: translateY(2px); /* Pressed effect */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5); /* Subtle shadow on click */
}

/* Body and Container Styles */
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: url('background.gif') no-repeat center center/cover;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: white;
    padding: 20px;
    background: rgba(0, 0, 0, 0.6); /* Semi-transparent background */
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

/* Headings and Text */
h1 {
    font-size: 3em;
    margin-bottom: 20px;
    font-weight: bold;
}

h2, h3 {
    font-size: 1.8em;
    font-weight: bold;
}

h3.links-header {
    margin-top: 30px;
    font-size: 1.5em;
}

/* Paragraph Styles */
p.intro-text {
    font-size: 1.2em;
    line-height: 1.6;
    margin-bottom: 30px;
    font-style: italic;
}

/* Button Styling */
a.btn {
    display: inline-block;
    padding: 15px 30px;
    margin: 10px;
    background-color: #141414;
    color: white;
    text-decoration: none;
    font-size: 1.2em;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.3s;
}

a.btn:hover {
    background-color: #555555;
    transform: translateY(-3px);
}

a.btn:active {
    background-color: #b8b8b8;
    transform: translateY(1px);
}

/* Fade-in animation */
.fade-in {
    opacity: 0;
    animation: fadeIn 2s forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Slide-up animation */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 1.5s forwards;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 2.5em;
    }

    h2, h3 {
        font-size: 1.4em;
    }

    p.intro-text {
        font-size: 1em;
    }

    a.btn {
        font-size: 1em;
        padding: 12px 25px;
    }
}