:root {
    --primary-color: #1E1E1E;
    --secondary-color: #2C2C2C;
    --accent-color-1: #4B0082;
    --accent-color-2: #00FFFF;
    --text-color: #FFFFFF;
    --code-bg: #333333;
    --border-radius: 8px;
}

body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    font-weight: 300;
    line-height: 1.6;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-color);
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-color-1);
    text-shadow: 0 0 10px rgba(75, 0, 130, 0.5);
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

pre {
    background: var(--code-bg);
    color: var(--text-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.4;
}

code {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

a {
    color: var(--accent-color-2);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-color-1);
}

h2, h3, h4 {
    color: var(--accent-color-1);
    margin-top: 2rem;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .container {
        grid-template-columns: 1fr;
    }
}