:root {
            --primary-color: #0056b3;
            --secondary-color: #e9ecef;
            --text-color: #343a40;
            --white-color: #ffffff;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            color: var(--text-color);
            background-color: var(--white-color);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* Header and Navigation */
        .header {
            background-color: var(--primary-color);
            color: var(--white-color);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--white-color);
            text-decoration: none;
        }
        
        .logo-image {
            height: 100px; /* Adjust as needed */
            margin-right: 5px; /* Space between logo and text */
        }
        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu a {
            color: var(--white-color);
            text-decoration: none;
            padding: 0.5rem 1rem;
            display: block;
            transition: background-color 0.3s ease;
            border-radius: 5px;
        }

        .nav-menu a:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }

        /* Mobile Menu */
        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }
        
        .menu-toggle span {
            height: 3px;
            width: 25px;
            background: var(--white-color);
            margin-bottom: 5px;
            border-radius: 2px;
            transition: all 0.3s ease-in-out;
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                flex-direction: column;
                background-color: var(--primary-color);
                border-top: 1px solid rgba(255, 255, 255, 0.2);
                display: none;
                text-align: center;
            }

            .nav-menu.active {
                display: flex;
            }
            
            .menu-toggle {
                display: flex;
            }
        }

        /* Sections */
        .hero {
            background-color: var(--secondary-color);
            text-align: center;
            padding: 4rem 0;
        }

        .hero h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }

        .section {
            padding: 3rem 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 2rem;
            font-size: 2rem;
            color: var(--primary-color);
        }

        .section-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .card {
            background-color: var(--secondary-color);
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            text-align: center;
        }

        .card h3 {
            color: var(--primary-color);
        }

        /* Photo and University Logos */
        .about-me-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 2rem;
        }

        .tutor-photo-wrapper {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            flex-shrink: 0; /* Prevents the image from shrinking on smaller screens */
        }
        
        .tutor-photo-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .about-me-text {
            max-width: 800px;
        }
        
        .university-logos {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-top: 2rem;
        }

        .university-logos img {
            height: 60px; /* Adjust size as needed */
            width: auto;
            object-fit: contain;
            filter: grayscale(100%); /* Makes logos look consistent */
            opacity: 0.7;
            transition: opacity 0.3s ease, filter 0.3s ease;
        }

        .university-logos img:hover {
            filter: grayscale(0%);
            opacity: 1;
        }

        @media (min-width: 768px) {
            .about-me-content {
                flex-direction: row;
                text-align: left;
                align-items: flex-start;
            }
            
            .tutor-photo-wrapper {
                margin-right: 2rem;
            }
        }

        /* Footer */
        .footer {
            background-color: var(--text-color);
            color: var(--secondary-color);
            text-align: center;
            padding: 1.5rem 0;
        }
        
        .footer a {
            color: var(--secondary-color);
            text-decoration: none;
            margin: 0 10px;
        }

        .footer a:hover {
            text-decoration: underline;
        }