:root {
            --primary-color: #fb3737;
            --secondary-color: #ff0000;
            --accent-color: #000000;
            --success-color: #00ffff;
            --warning-color: #0000ff;
            --danger-color: #ff00ff;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #f8fafc;
            color: #1a202c;
            line-height: 1.6;
            font-size: 14px;
        }
        
        .container {
            max-width: 420px;
            margin: 0 auto;
            background: white;
            min-height: 100vh;
            box-shadow: 0 0 20px rgba(0,0,0,0.1);
        }
        
        /* Header */
        .header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
        }
        
        .logo-section {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .logo {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--secondary-color), var(--danger-color));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 8px;
            text-align: center;
            line-height: 1;
        }
        
        .site-title {
            font-size: 18px;
            font-weight: 600;
            color: white;
        }
        
        .menu-toggle {
            background: rgba(255,255,255,0.2);
            border: none;
            color: white;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        
        .menu-toggle:hover {
            background: rgba(255,255,255,0.3);
        }
        
        .menu-toggle i {
            font-size: 16px;
        }
        
        /* Navigation */
        .nav-menu {
            display: flex;
            justify-content: space-between;
            padding: 12px 20px;
            background: white;
            border-bottom: 1px solid #e2e8f0;
            font-size: 12px;
        }
        
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            text-decoration: none;
            color: #64748b;
            font-weight: 500;
            padding: 6px 8px;
            border-radius: 6px;
            transition: all 0.2s;
        }
        
        .nav-item i {
            font-size: 16px;
        }
        
        .nav-item:hover {
            color: var(--primary-color);
            background: #f1f5f9;
        }
        
        .nav-item.active {
            color: var(--primary-color);
            font-weight: 600;
            background: #eef2ff;
        }
        
        /* Main Content */
        .main-content {
            padding: 20px;
            background: #f8fafc;
        }
        
        .page-title {
            font-size: 24px;
            font-weight: 700;
            color: #1a202c;
            margin-bottom: 24px;
            text-align: center;
        }
        
        /* About Content */
        .about-content {
            background: white;
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            border: 1px solid #e2e8f0;
        }
        
        .about-paragraph {
            font-size: 15px;
            line-height: 1.7;
            color: #374151;
            margin-bottom: 20px;
            text-align: justify;
        }
        
        .about-paragraph:last-child {
            margin-bottom: 0;
        }
        
        /* Highlight Box */
        .highlight-box {
            background: linear-gradient(135deg, var(--accent-color), var(--success-color));
            color: white;
            padding: 20px;
            border-radius: 12px;
            margin: 24px 0;
            text-align: center;
        }
        
        .highlight-box h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        
        .highlight-box p {
            font-size: 14px;
            opacity: 0.9;
        }
        
        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin: 24px 0;
        }
        
        .feature-item {
            background: white;
            padding: 16px;
            border-radius: 8px;
            text-align: center;
            border: 1px solid #e2e8f0;
            transition: all 0.2s;
        }
        
        .feature-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        
        .feature-item i {
            font-size: 24px;
            color: var(--primary-color);
            margin-bottom: 8px;
        }
        
        .feature-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: #1a202c;
            margin-bottom: 4px;
        }
        
        .feature-item p {
            font-size: 12px;
            color: #64748b;
        }
        
        /* Back to Home Button */
        .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-color);
            color: white;
            text-decoration: none;
            padding: 12px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            margin-top: 24px;
            transition: all 0.2s;
        }
        
        .back-home:hover {
            background: var(--secondary-color);
            transform: translateY(-1px);
            color: white;
        }
        
        .back-home i {
            font-size: 14px;
        }
        
        /* Admin Link */
        .admin-link {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: var(--primary-color);
            color: white;
            padding: 12px;
            border-radius: 50%;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            transition: all 0.2s;
            z-index: 1000;
        }
        
        .admin-link:hover {
            background: var(--secondary-color);
            transform: scale(1.1);
        }
        
        .admin-link i {
            font-size: 16px;
        }
        
        /* SEO Score Badge */
        .seo-score {
            position: fixed;
            bottom: 80px;
            right: 20px;
            background: #10b981;
            color: white;
            padding: 8px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(0,0,0,0.2);
            z-index: 1000;
        }
        
        /* Responsive Design */
        @media (max-width: 420px) {
            .container {
                max-width: 100%;
                box-shadow: none;
            }
            
            .header {
                padding: 14px 16px;
            }
            
            .logo {
                width: 36px;
                height: 36px;
                font-size: 7px;
            }
            
            .site-title {
                font-size: 16px;
            }
            
            .nav-menu {
                padding: 10px 16px;
                font-size: 11px;
            }
            
            .nav-item {
                padding: 4px 6px;
            }
            
            .nav-item i {
                font-size: 14px;
            }
            
            .main-content {
                padding: 16px;
            }
            
            .page-title {
                font-size: 22px;
            }
            
            .about-content {
                padding: 20px;
            }
            
            .about-paragraph {
                font-size: 14px;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        
        /* Accessibility */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }
        
        /* Focus styles for accessibility */
        .nav-item:focus,
        .back-home:focus,
        .menu-toggle:focus {
            outline: 2px solid var(--primary-color);
            outline-offset: 2px;
        }
        
        /* Fade in animation */
        .fade-in {
            opacity: 0;
            transform: translateY(10px);
            animation: fadeIn 0.5s ease forwards;
        }
        
        @keyframes fadeIn {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Clean scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }
        
        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }
        
        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 3px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }