/* Mobile First & Responsive Base Styling Layouts */
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            overflow-x: hidden;
        }
        
        /* Sticky Navigation Blueprint ensuring links always stay visible */
        header {
            position: -webkit-sticky;
            position: sticky;
            top: 0;
            background: #ffffff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            z-index: 1000;
            width: 100%;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 15px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            text-decoration: none;
            font-weight: 700;
            color: #333;
            font-size: 1.1rem;
        }
        .nav-links {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 15px;
        }
        .nav-links a {
            text-decoration: none;
            color: #555;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.2s ease;
        }
        .nav-links a:hover {
            color: #0066cc;
        }

        /* Generic Layout Adjustments for Sections */
        section {
            padding: 60px 20px;
            max-width: 1200px;
            margin: 0 auto;
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Forms, Inputs, Buttons updates for Touch Inputs */
        input, select, textarea {
            width: 100%;
            box-sizing: border-box;
            padding: 12px;
            font-size: 16px; /* Prevents auto-zoom on iOS safari safari devices */
            margin-top: 5px;
            border: 1px solid #ccc;
            border-radius: 6px;
        }
        .btn-solid, .btn-outline, .submit-btn {
            display: inline-block;
            text-decoration: none;
            padding: 12px 24px;
            border-radius: 6px;
            font-weight: 600;
            text-align: center;
            transition: transform 0.2s, background 0.2s;
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 25px;
        }

        /* Default Grid structures for modern viewports */
        .about-grid, .subjects-grid, .approach-grid, .testimonials-grid {
            display: grid;
            gap: 20px;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            margin-top: 30px;
        }
        .about-grid {
            grid-template-columns: 1fr 1fr;
        }

        /* Core Media Queries for Mobile Screens (< 768px) */
        @media (max-width: 768px) {
            /* Keep links visible but stack the navbar elements cleanly */
            .nav-container {
                flex-direction: column;
                gap: 10px;
                padding: 12px 12px;
                text-align: center;
            }
            .nav-links {
                gap: 12px;
                justify-content: center;
                width: 100%;
            }
            .nav-links a {
                font-size: 0.88rem;
                padding: 4px 6px;
            }

            /* Main Layout Stacking elements */
            .about-grid {
                grid-template-columns: 1fr; /* Stacks image below or above text */
            }
            .image-container {
                order: -1; /* Puts the profile photo above the bio text on small viewports */
                display: flex;
                justify-content: center;
            }
            .profile-img {
                max-width: 250px;
                border-radius: 50%; /* Circle look optimization optional */
            }

            /* Adjust typography scaling for mobile screens */
            h1 { font-size: 1.8rem; line-height: 1.3; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.25rem; }
            
            .hero-credentials {
                font-size: 0.9rem;
                line-height: 1.4;
            }
            
            /* CTA Stretch adjustments */
            .hero-cta-group .btn-solid, 
            .hero-cta-group .btn-outline {
                width: 100%; /* Makes buttons full-width thumb targets */
                box-sizing: border-box;
            }

            /* Extra adjustments for social references */
            .find-me-section a {
                display: block !important;
                margin-right: 0 !important;
                margin-bottom: 8px;
                text-align: center;
            }
        }