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

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

:root {
    --deep-space-blue: #1a2980;
    --nebula-purple: #6a11cb;
    --gradient-gold-silver: linear-gradient(45deg, #ffd700, #c0c0c0);
    --electric-blue: #1e90ff;
    --fluorescent-green: #39ff14;
    --orange: #ff8c00;
    --background-gradient: linear-gradient(135deg, #1a2980, #6a11cb);
    --text-color: #ffffff;
    --secondary-text: #dddddd;
    --button-hover-transform: scale(1.1);
    --button-hover-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'Roboto', sans-serif;
    background: var(--background-gradient);
    color: var(--text-color);
    overflow-x: hidden;
    position: relative;
}

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

.sidebar {
    background: rgba(26, 41, 128, 0.9);
    width: 250px;
    padding: 20px;
    position: fixed;
    height: 100%;
    overflow-y: auto;
}

.sidebar h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    background: var(--gradient-gold-silver);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    margin: 20px 0;
}

.sidebar ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 18px;
    display: block;
    transition: color 0.3s ease;
}

.sidebar ul li a:hover {
    color: var(--electric-blue);
}

.main-content {
    margin-left: 270px;
    padding: 40px;
    flex: 1;
    background: rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.main-content h2, .main-content h3, .main-content h4 {
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 20px;
    color: #ffffff;
}

.main-content p, .main-content ul, .main-content ol, .main-content table {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.main-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.main-content table, .main-content th, .main-content td {
    border: 1px solid #ffffff;
}

.main-content th, .main-content td {
    padding: 10px;
    text-align: left;
}

.main-content pre {
    background: #2c2c2c;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

.main-content code {
    font-family: 'Roboto', monospace;
    color: #00ff00;
}

.button {
    background: var(--electric-blue);
    color: var(--text-color);
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 5px;
}

.button:hover {
    transform: var(--button-hover-transform);
    box-shadow: var(--button-hover-shadow);
}

.image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.image-gallery img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 5px;
}

.reference-note {
    font-size: 14px;
    color: var(--secondary-text);
    margin-top: 30px;
    text-align: center;
}

@media (max-width: 1440px) {
    .sidebar {
        width: 220px;
    }
    .main-content {
        margin-left: 240px;
        padding: 30px;
    }
}

@media (max-width: 1200px) {
    .sidebar {
        width: 200px;
    }
    .main-content {
        margin-left: 220px;
        padding: 25px;
    }
}

@media (max-width: 1024px) {
    .sidebar {
        width: 180px;
    }
    .main-content {
        margin-left: 200px;
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
    }
    .main-content {
        margin-left: 0;
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .sidebar h1 {
        font-size: 20px;
    }
    .sidebar ul li a {
        font-size: 16px;
    }
    .main-content h2 {
        font-size: 22px;
    }
    .main-content p, .main-content ul, .main-content ol, .main-content table {
        font-size: 14px;
    }
}

@media (max-width: 320px) {
    .sidebar h1 {
        font-size: 18px;
    }
    .sidebar ul li a {
        font-size: 14px;
    }
    .main-content h2 {
        font-size: 20px;
    }
    .main-content p, .main-content ul, .main-content ol, .main-content table {
        font-size: 12px;
    }
}