* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
        }
        
        :root {
            --primary-color: #1a237e;
            --secondary-color: #f8bbd0;
            --accent-color: #ffeb3b;
            --text-color: #212121;
            --light-bg: #f5f5f5;
            --dark-bg: #263238;
        }
        
        body {
            background-color: var(--light-bg);
            color: var(--text-color);
            line-height: 1.6;
        }
        
        /* Header Styles */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background-color: var(--primary-color);
            color: white;
            padding: 1rem 5%;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            letter-spacing: 2px;
            color: var(--accent-color);
            text-decoration: none;
        }
        
        .nav-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }
        
        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: white;
            margin: 3px 0;
            transition: 0.3s;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 1.5rem;
        }
        
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            position: relative;
        }
        
        nav ul li a:hover {
            color: var(--accent-color);
        }
        
        nav ul li a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: var(--accent-color);
            transition: width 0.3s;
        }
        
        nav ul li a:hover:after {
            width: 100%;
        }
        
        /* Main Content */
        main {
            padding: 8rem 5% 5rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: var(--primary-color);
            text-align: center;
        }
        
        h2 {
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            color: var(--primary-color);
        }
        
        h3 {
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
            color: var(--primary-color);
        }
        
        p {
            margin-bottom: 1rem;
        }
        
        ul {
            margin-bottom: 1rem;
            padding-left: 2rem;
        }
        
        li {
            margin-bottom: 0.5rem;
        }
        
        /* Footer */
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 5%;
        }
        
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        
        .footer-column {
            flex: 1;
            min-width: 250px;
        }
        
        .footer-column h3 {
            color: var(--accent-color);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        
        .footer-column ul {
            list-style: none;
            padding-left: 0;
        }
        
        .footer-column ul li {
            margin-bottom: 0.8rem;
        }
        
        .footer-column ul li a {
            color: white;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: var(--accent-color);
        }
        
        .footer-bottom {
            text-align: center;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            opacity: 0.7;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            
            nav ul {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary-color);
                flex-direction: column;
                align-items: center;
                padding: 2rem 0;
                transform: translateY(-150%);
                transition: transform 0.3s;
                z-index: 100;
            }
            
            nav ul.active {
                transform: translateY(0);
            }
            
            nav ul li {
                margin: 0.8rem 0;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            h2 {
                font-size: 1.5rem;
            }
            
            h3 {
                font-size: 1.2rem;
            }
        }