:root {
    --primary-color: #0A192F;
    --accent-color: #645CAA;
    --highlight-color: #39FF14;
    --text-color: #FFFFFF;
    --background-gradient: linear-gradient(135deg, #0A192F, #645CAA);
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 8px 12px rgba(0, 0, 0, 0.2);
}

body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    color: var(--text-color);
    background: var(--background-gradient);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    line-height: 1.6;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--accent-color);
}

a {
    color: var(--highlight-color);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

a:hover {
    color: #FFD700;
}

.container {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 20px;
    padding: 20px;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: -200px;
        width: 200px;
        height: 100vh;
        background: var(--primary-color);
        transition: left 0.3s ease-in-out;
        z-index: 1000;
    }

    .sidebar.active {
        left: 0;
    }
}

.sidebar {
    background: var(--primary-color);
    padding: 15px;
    box-shadow: var(--shadow-light);
}

.sidebar a {
    display: block;
    padding: 10px;
    border-radius: 5px;
}

.sidebar a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.content {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    box-shadow: var(--shadow-heavy);
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    box-shadow: var(--shadow-light);
    margin-bottom: 20px;
    overflow: hidden;
    transition: transform 0.3s ease-in-out;
}

.card:hover {
    transform: translateY(-5px);
}

.card img {
    width: 100%;
    height: auto;
    display: block;
}

.card-content {
    padding: 15px;
}

.button {
    background: var(--highlight-color);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.3s ease-in-out;
}

.button:hover {
    transform: scale(1.1);
}

pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    color: #FFD700;
    font-family: 'Roboto Condensed', sans-serif;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th, td {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px;
    text-align: left;
}

th {
    background: var(--accent-color);
    color: var(--text-color);
}

td {
    background: rgba(255, 255, 255, 0.1);
}

footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.8);
}