body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    line-height: 1.6;
}

.container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    gap: 20px;
}

.sidebar {
    width: 300px;
    padding: 20px;
    background-color: #000000;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 20px;
    height: fit-content;
}

.main-content {
    flex: 1;
    padding: 20px;
}

/* Sidebar Navigation */
.main-nav {
    margin-bottom: 30px;
}

.main-nav h2 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-nav ul li {
    margin-bottom: 10px;
}

.main-nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1em;
    display: block;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.main-nav ul li a:hover {
    color: #cccccc;
    text-decoration: underline;
}

/* Social Links Section */
.social-links {
    margin-bottom: 30px;
}

.social-links h2 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.social-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.social-links ul li {
    margin-bottom: 10px;
}

.social-links ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.social-links ul li a:hover {
    color: #cccccc;
    text-decoration: underline;
}

/* Education Section */
.education {
    margin-bottom: 30px;
}

.education h2 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.education a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.9em;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.education a:hover {
    color: #cccccc;
    text-decoration: underline;
}

/* Profile Header */
.profile-header {
    text-align: center;
    margin-bottom: 30px;
}

.profile-image {
    border-radius: 50%;
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.profile-badges {
    margin-top: 20px;
}

/* Markdown Content Styling */
.markdown-content {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.markdown-content h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.2em;
    border-bottom: 3px solid #000;
    padding-bottom: 10px;
}

.markdown-content h2 {
    color: #333;
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.6em;
    border-bottom: 2px solid #666;
    padding-bottom: 5px;
}

.markdown-content h3 {
    color: #555;
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 1.3em;
}

.markdown-content p {
    margin-bottom: 15px;
    line-height: 1.7;
}

.markdown-content ul, .markdown-content ol {
    margin-bottom: 15px;
    padding-left: 25px;
}

.markdown-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.markdown-content strong {
    color: #000;
    font-weight: bold;
}

.markdown-content a {
    color: #000;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.markdown-content a:hover {
    color: #666;
}

.markdown-content hr {
    border: none;
    border-top: 2px solid #ddd;
    margin: 30px 0;
}

.markdown-content blockquote {
    border-left: 4px solid #000;
    margin: 20px 0;
    padding-left: 20px;
    font-style: italic;
    color: #555;
}

.markdown-content code {
    background-color: #f0f0f0;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.markdown-content pre {
    background-color: #f0f0f0;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 15px 0;
}

.markdown-content pre code {
    background-color: transparent;
    padding: 0;
}

/* Tetris Game Container */
.tetris-container {
    background-color: #000;
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    text-align: center;
}

.tetris-container iframe {
    border: none;
    border-radius: 5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        padding: 10px;
    }
    
    .sidebar {
        width: 100%;
        position: static;
        margin-bottom: 20px;
    }
    
    .main-content {
        padding: 10px;
    }
    
    .markdown-content {
        padding: 20px;
    }
    
    .markdown-content h1 {
        font-size: 1.8em;
    }
    
    .markdown-content h2 {
        font-size: 1.4em;
    }
}

/* Loading Animation */
.loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #000;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}