* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: Arial, sans-serif;
    background: url('png-background.png') no-repeat center center fixed;
    background-size: cover;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    transition: background 0.5s ease-in-out; /* Smooth transition */
}

body {
    display: grid;
    grid-template-rows: auto 1fr auto;
}

header, footer {
    background-color: #1e1e1e;
    padding: 20px 0;
    text-align: center;
    background: url('header_image.png') no-repeat center center;
    background-size: cover;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

nav ul li {
    margin: 0 10px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.5rem;
    padding: 10px 15px;
    display: block;
}

nav ul li a:hover {
    background-color: #333333;
    border-radius: 5px;
}

.hero {
    background-color: #000000;
    text-align: center;
    width: 100%;
}

.hero img {
    width: 100%;
    height: auto;
}

.container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content {
    flex: 1;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
}

p {
    font-size: 1.25rem;
    line-height: 1.6;
}

footer {
    background-color: #1e1e1e;
    text-align: center;
    padding: 10px 0;
    width: 100%;
    position: sticky;
    bottom: 0;
}

@media (max-width: 768px) {
    nav ul li a {
        font-size: 1.2rem;
    }

    h1 {
        font-size: 2rem;
    }

    p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    nav ul {
        flex-direction: column;
    }

    nav ul li {
        margin: 5px 0;
    }

    nav ul li a {
        font-size: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    p {
        font-size: 0.9rem;
    }
}
.button {
    display: inline-block;
    padding: 15px 25px;
    margin: 10px;
    font-size: 1.2rem;
    color: #ffffff;
    background-color: #333333;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.button:hover {
    background-color: #555555;
}

.account-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .button {
        font-size: 1rem;
        padding: 12px 20px;
    }

    .account-links {
        flex-direction: column;
    }
}
.instructions-section pre {
    background-color: #1e1e1e;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

.instructions-section code {
    color: #ffffff;
}

.instructions-section a {
    color: #00aaff;
    text-decoration: none;
}

.instructions-section a:hover {
    text-decoration: underline;
}
.download-section, .instructions-section {
    margin: 20px 0;
    text-align: center;
}

.horizontal-rule {
    display: block;
    margin: 20px auto;
    width: 80%;
    height: auto;
}