body {
            box-sizing: border-box;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: #333;
            overflow-x: hidden;
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1rem 0;
            transition: all 0.3s ease;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 2rem;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #2563eb;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: #2563eb;
        }

        .auth-buttons {
            display: flex;
            gap: 1rem;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            color: white;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: #2563eb;
            border: 2px solid #2563eb;
        }

        .btn-outline:hover {
            background: #2563eb;
            color: white;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background: #333;
            margin: 3px 0;
            transition: 0.3s;
        }

        /* Hero Section */
        .hero {
            height: 100vh;
                        background: linear-gradient(135deg, rgba(37, 99, 235, 0.8), rgba(59, 130, 246, 0.6)), 
                        url('https://cdn.pixabay.com/photo/2017/10/03/20/59/math-2814174_1280.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            max-width: 800px;
            padding: 0 2rem;
            animation: fadeInUp 1s ease-out;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            animation: fadeInUp 1s ease-out 0.2s both;
        }

        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            animation: fadeInUp 1s ease-out 0.4s both;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .floating-elements {
            position: absolute;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        .floating-element {
            position: absolute;
            color: rgba(255, 255, 255, 0.1);
            font-size: 2rem;
            animation: float 6s ease-in-out infinite;
        }

        .floating-element:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
        .floating-element:nth-child(2) { top: 60%; right: 15%; animation-delay: 2s; }
        .floating-element:nth-child(3) { bottom: 30%; left: 20%; animation-delay: 4s; }
        .floating-element:nth-child(4) { top: 40%; right: 30%; animation-delay: 1s; }

        /* Sections */
        .section {
            padding: 5rem 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 3rem;
        }

        .section-subtitle {
            text-align: center;
            font-size: 1.1rem;
            color: #64748b;
            margin-bottom: 3rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Topics Section */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .topic-card {
            background: white;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .topic-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
            border-color: #2563eb;
        }

        .topic-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .topic-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #1e293b;
        }

        .topic-card p {
            color: #64748b;
            margin-bottom: 1.5rem;
        }

        .topic-progress {
            background: #f1f5f9;
            height: 8px;
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 1rem;
        }

        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, #10b981, #34d399);
            border-radius: 4px;
            transition: width 0.3s ease;
        }

        /* Resources Section */
        .resources-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .resource-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .resource-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

.resource-image {
    height: 200px;
    overflow: hidden;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
}

.resource-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensures the image covers the div without distortion */
    display: block;
}

        .resource-content {
            padding: 1.5rem;
        }

        .resource-type {
            background: #dbeafe;
            color: #2563eb;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            display: inline-block;
            margin-bottom: 1rem;
        }

        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .testimonial-card {
            background: white;
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            text-align: center;
        }

        .testimonial-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            margin: 0 auto 1rem;
        }

        .stars {
            color: #fbbf24;
            margin-bottom: 1rem;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            color: white;
            text-align: center;
        }

        .cta-section .section-title {
            color: white;
        }

        /* Footer */
        .footer {
            background: #1e293b;
            color: white;
            padding: 3rem 0 1rem;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            margin-bottom: 1rem;
            color: #3b82f6;
        }

        .footer-section a {
            color: #94a3b8;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.3s ease;
        }

        .footer-section a:hover {
            color: white;
        }

        .newsletter-form {
            display: flex;
            gap: 0.5rem;
            margin-top: 1rem;
        }

        .newsletter-input {
            flex: 1;
            padding: 0.75rem;
            border: none;
            border-radius: 25px;
            outline: none;
        }

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: 1rem;
            text-align: center;
            color: #94a3b8;
        }

        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 2000;
            backdrop-filter: blur(5px);
        }

        .modal-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: 2rem;
            border-radius: 20px;
            width: 90%;
            max-width: 400px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        .modal-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .modal-header h2 {
            color: #1e293b;
            margin-bottom: 0.5rem;
        }

        .close-modal {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #64748b;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: #374151;
        }

        .form-group input {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e5e7eb;
            border-radius: 10px;
            outline: none;
            transition: border-color 0.3s ease;
        }

        .form-group input:focus {
            border-color: #2563eb;
        }

        .user-greeting {
            display: none;
            color: #2563eb;
            font-weight: 500;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
        }

        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Study Plans Styles */
        .study-plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .study-plan-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            position: relative;
        }

        .study-plan-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

        .study-plan-card.featured {
            border: 3px solid #2563eb;
            transform: scale(1.05);
        }

        .plan-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: linear-gradient(135deg, #f59e0b, #f97316);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .plan-header {
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            color: white;
            padding: 2rem;
            text-align: center;
        }

        .plan-header h3 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }

        .plan-duration {
            opacity: 0.9;
            font-size: 0.9rem;
        }

        .plan-content {
            padding: 2rem;
        }

        .plan-price {
            font-size: 2.5rem;
            font-weight: 700;
            color: #2563eb;
            text-align: center;
            margin-bottom: 2rem;
        }

        .plan-price span {
            font-size: 1rem;
            color: #64748b;
        }

        .plan-features {
            list-style: none;
            margin-bottom: 2rem;
        }

        .plan-features li {
            padding: 0.5rem 0;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .plan-features .fa-check {
            color: #10b981;
        }

        .plan-features .fa-times {
            color: #ef4444;
        }

        .plan-btn {
            width: 100%;
            text-align: center;
        }

        /* Tools Section Styles */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .tool-card {
            background: white;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            text-align: center;
        }

        .tool-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

        .tool-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            margin: 0 auto 1.5rem;
        }

        .tool-demo {
            margin: 1.5rem 0;
            height: 150px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f8fafc;
            border-radius: 10px;
        }

        /* 3D Cube Animation */
        .geometry-3d {
            perspective: 1000px;
        }

        .cube-3d {
            width: 80px;
            height: 80px;
            position: relative;
            transform-style: preserve-3d;
            animation: rotateCube 6s infinite linear;
        }

        .face {
            position: absolute;
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            border: 2px solid #1e40af;
            opacity: 0.8;
        }

        .face.front { transform: rotateY(0deg) translateZ(40px); }
        .face.back { transform: rotateY(180deg) translateZ(40px); }
        .face.right { transform: rotateY(90deg) translateZ(40px); }
        .face.left { transform: rotateY(-90deg) translateZ(40px); }
        .face.top { transform: rotateX(90deg) translateZ(40px); }
        .face.bottom { transform: rotateX(-90deg) translateZ(40px); }

        @keyframes rotateCube {
            0% { transform: rotateX(0deg) rotateY(0deg); }
            100% { transform: rotateX(360deg) rotateY(360deg); }
        }

        /* Statistics Chart */
        .stats-chart {
            display: flex;
            align-items: end;
            justify-content: center;
            gap: 8px;
            height: 100px;
        }

        .bar {
            width: 20px;
            background: linear-gradient(to top, #2563eb, #3b82f6);
            border-radius: 4px 4px 0 0;
            animation: growBar 2s ease-out;
        }

        @keyframes growBar {
            from { height: 0; }
        }

        /* Trigonometry Circle */
        .trig-circle {
            position: relative;
            width: 100px;
            height: 100px;
        }

        .circle {
            width: 100px;
            height: 100px;
            border: 3px solid #2563eb;
            border-radius: 50%;
            position: relative;
        }

        .radius {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 50px;
            height: 2px;
            background: #f59e0b;
            transform-origin: left center;
            animation: rotateRadius 4s infinite linear;
        }

        .angle-indicator {
            position: absolute;
            top: 45%;
            left: 45%;
            width: 10px;
            height: 10px;
            background: #ef4444;
            border-radius: 50%;
            animation: rotateRadius 4s infinite linear;
        }

        @keyframes rotateRadius {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* Progress Dashboard */
        .progress-dashboard {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .dashboard-card {
            background: white;
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            text-align: center;
        }

        .circular-progress {
            position: relative;
            margin: 2rem auto;
        }

        .progress-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 1.5rem;
            font-weight: 700;
            color: #2563eb;
        }

        .activity-chart {
            display: flex;
            justify-content: space-between;
            align-items: end;
            height: 120px;
            margin: 2rem 0;
        }

        .activity-day {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
        }

        .activity-bar {
            width: 20px;
            background: linear-gradient(to top, #2563eb, #3b82f6);
            border-radius: 4px 4px 0 0;
            animation: growBar 1s ease-out;
        }

        .day-label {
            font-size: 0.8rem;
            color: #64748b;
        }

        .achievements-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin-top: 1rem;
        }

        .achievement {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem;
            border-radius: 10px;
            background: #f8fafc;
            color: #94a3b8;
        }

        .achievement.earned {
            background: linear-gradient(135deg, #f59e0b, #f97316);
            color: white;
        }

        .achievement i {
            font-size: 1.5rem;
        }

        .achievement span {
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* Exam Prep Styles */
        .exam-prep-content {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 4rem;
            margin-top: 3rem;
            align-items: start;
        }

        .feature-item {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: white;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .feature-content h3 {
            margin-bottom: 0.5rem;
            color: #1e293b;
        }

        .exam-countdown {
            background: white;
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            text-align: center;
            position: sticky;
            top: 100px;
        }

        .countdown-timer {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin: 2rem 0;
        }

        .countdown-item {
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            color: white;
            padding: 1rem;
            border-radius: 15px;
        }

        .countdown-number {
            font-size: 2rem;
            font-weight: 700;
        }

        .countdown-label {
            font-size: 0.8rem;
            opacity: 0.9;
        }

        /* Tutors Section */
        .tutors-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .tutor-card {
            background: white;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .tutor-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

        .tutor-avatar {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #2563eb, #3b82f6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            margin: 0 auto 1.5rem;
        }

        .tutor-info {
            text-align: center;
        }

        .tutor-title {
            color: #64748b;
            margin-bottom: 1rem;
        }

        .tutor-rating {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .tutor-rating span {
            color: #64748b;
            font-size: 0.9rem;
        }

        .tutor-description {
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        .tutor-specialties {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            justify-content: center;
            margin-bottom: 1.5rem;
        }

        .specialty {
            background: #dbeafe;
            color: #2563eb;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* FAQ Styles */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: white;
            border-radius: 15px;
            margin-bottom: 1rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }

        .faq-question {
            padding: 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s ease;
        }

        .faq-question:hover {
            background: #f8fafc;
        }

        .faq-question h3 {
            margin: 0;
            color: #1e293b;
        }

        .faq-question i {
            color: #2563eb;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.5rem;
            max-height: 200px;
        }

        /* Blog Styles */
        .blog-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .blog-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .blog-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

       .blog-image {
    height: 200px;
    overflow: hidden;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* ensures image covers the div */
    display: block;
}


        .blog-content {
            padding: 1.5rem;
        }

        .blog-meta {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .blog-date {
            color: #64748b;
            font-size: 0.9rem;
        }

        .blog-category {
            background: #dbeafe;
            color: #2563eb;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .blog-card h3 {
            margin-bottom: 1rem;
            color: #1e293b;
        }

        .blog-card p {
            color: #64748b;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        .blog-link {
            color: #2563eb;
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: gap 0.3s ease;
        }

        .blog-link:hover {
            gap: 1rem;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            }

            .nav-links.active {
                display: flex;
            }

            .auth-buttons {
                display: none;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .section-title {
                font-size: 2rem;
            }

            .topics-grid,
            .resources-grid,
            .testimonials-grid,
            .study-plans-grid,
            .tools-grid,
            .tutors-grid,
            .blog-grid {
                grid-template-columns: 1fr;
            }

            .newsletter-form {
                flex-direction: column;
            }

            .exam-prep-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .countdown-timer {
                grid-template-columns: repeat(4, 1fr);
                gap: 0.5rem;
            }

            .countdown-item {
                padding: 0.75rem 0.5rem;
            }

            .countdown-number {
                font-size: 1.5rem;
            }

            .study-plan-card.featured {
                transform: none;
            }

            .progress-dashboard {
                grid-template-columns: 1fr;
            }

            .achievements-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }

            .container {
                padding: 0 1rem;
            }

            .modal-content {
                padding: 1.5rem;
            }
        }