@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

:root {
    --primary-color: #4CAF50; /* Green */
    --secondary-color: #2c3e50; /* Dark Blue */
    --background-color: #1a1a1a; /* Very Dark Gray */
    --text-color: #ecf0f1; /* Light Gray */
    --card-bg-color: #252525; /* Dark Gray */
    --button-hover-color: #45a049;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: var(--card-bg-color);
    padding: 15px 0;
    border-bottom: 2px solid var(--primary-color);
}

header .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.logo {
    width: 50px;
    height: 50px;
    border-radius: 8px;
}

header h1 {
    font-size: 2em;
    color: var(--primary-color);
}

.hero {
    text-align: center;
    padding: 40px 20px;
    background-color: var(--card-bg-color);
    margin-top: 30px;
    border-radius: 8px;
}

.hero h2 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.hero .subtitle {
    font-size: 1.2em;
    color: #bdc3c7;
    margin-bottom: 30px;
}

.download-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 20px 50px;
    font-size: 1.8em;
    font-weight: 700;
    text-decoration: none;
    border-radius: 10px;
    text-transform: uppercase;
    transition: background-color 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.download-button:hover {
    background-color: var(--button-hover-color);
    transform: scale(1.05);
}

.file-info {
    margin-top: 15px;
    font-size: 0.9em;
    color: #95a5a6;
}

.thumbnail {
    max-width: 100%;
    height: auto;
    margin-top: 30px;
    border-radius: 8px;
    border: 3px solid var(--primary-color);
}

.content {
    background-color: var(--card-bg-color);
    padding: 30px;
    margin-top: 30px;
    border-radius: 8px;
}

.content h2 {
    font-size: 2em;
    color: var(--primary-color);
    margin-bottom: 20px;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
}

.content p, .content li {
    font-size: 1.1em;
    margin-bottom: 15px;
    color: #bdc3c7;
}

.content ul, .content ol {
    padding-left: 20px;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    background-color: #111;
    color: #7f8c8d;
}

.disclaimer {
    font-size: 0.8em;
    margin-top: 10px;
}

/* Responsive Design */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.5em;
    }

    .hero h2 {
        font-size: 2em;
    }

    .download-button {
        font-size: 1.4em;
        padding: 15px 30px;
    }

    .content {
        padding: 20px;
    }
}