@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;700&display=swap');
        
        :root {
            --bg-dark: #111827;
            --bg-glass: rgba(17, 24, 39, 0.7);
            --bg-card: rgba(255, 255, 255, 0.05);
            --bg-hover: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.1);
            --primary: #6366f1;
            --primary-light: #818cf8;
            --primary-dark: #4f46e5;
            --text-primary: #ffffff;
            --text-secondary: #cbd5e1;
            --text-muted: #9CA3AF;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Vazirmatn', sans-serif;
            background-color: var(--bg-dark);
            background-image: 
                radial-gradient(at 50% 0%, rgba(59, 130, 246, 0.3) 0px, transparent 50%),
                radial-gradient(at 100% 0%, rgba(124, 58, 237, 0.3) 0px, transparent 50%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
        }
        
        .glass-effect {
            background: var(--bg-glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-light);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1rem;
        }
        
        header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border-light);
        }
        
        header h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--primary-light);
        }
        
        header p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        
        .content-card {
            background: var(--bg-glass);
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            border: 1px solid var(--border-light);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }
        
        h2 {
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            color: var(--primary-light);
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 0.75rem;
        }
        
        h3 {
            font-size: 1.4rem;
            margin: 1.5rem 0 1rem;
            color: var(--text-primary);
        }
        
        p, ul, ol {
            margin-bottom: 1.2rem;
            color: var(--text-secondary);
        }
        
        ul, ol {
            padding-left: 1.5rem;
        }
        
        li {
            margin-bottom: 0.5rem;
        }
        
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        
        .highlight {
            color: var(--primary-light);
            font-weight: 500;
        }
        
        .info-box {
            background: rgba(99, 102, 241, 0.1);
            border-left: 3px solid var(--primary);
            padding: 1rem;
            margin: 1.5rem 0;
            border-radius: 6px;
        }
        
        footer {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 1rem 0;
        }
        
        .updated-date {
            margin-top: 2rem;
            text-align: right;
            font-style: italic;
            color: var(--text-muted);
        }
        
        /* Responsive adjustments */
        @media (max-width: 768px) {
            .container {
                padding: 1rem;
            }
            
            .content-card {
                padding: 1.5rem;
            }
            
            header h1 {
                font-size: 2rem;
            }
        }
        
        /* Scrollbar styling */
        ::-webkit-scrollbar {
            width: 8px; 
            height: 8px; 
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.1); 
            border-radius: 10px; 
        }
        
        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.3); 
            border-radius: 10px; 
            border: 2px solid rgba(255, 255, 255, 0.1); 
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.5); 
        }
         .language-switch {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #3366cc;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
}

.language-switch:hover {
    background-color: #254e9e;
    transform: scale(1.05);
    text-decoration: none; 
}

.language-switch i {
    font-size: 24px;
}