:root {
            --primary: #2c3e50;
            --secondary: #3498db;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #2c3e50;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .exam-id-hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-content h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .hero-content p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            line-height: 1.6;
        }

        .hero-image {
            width: 100%;
            max-width: 500px;
            margin: 2rem auto;
            border-radius: 10px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s ease;
        }

        .hero-image:hover {
            transform: scale(1.03);
        }

        .cta-button {
            display: inline-block;
            background-color: var(--accent);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            border: 2px solid var(--accent);
            margin-top: 1rem;
        }

        .cta-button:hover {
            background-color: transparent;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }

        .features-section {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            color: var(--dark);
        }

        .section-title h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            width: 60px;
            height: 4px;
            background-color: var(--secondary);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background-color: white;
            border-radius: 10px;
            padding: 2rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            text-align: center;
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1.5rem;
        }

        .feature-card h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: var(--dark);
        }

        .feature-card p {
            color: #666;
            line-height: 1.6;
        }

        .portfolio-section {
            padding: 5rem 2rem;
            background-color: #f9f9f9;
        }

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

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

        .portfolio-item {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }

        .portfolio-item:hover {
            transform: scale(1.03);
        }

        .portfolio-image {
            width: 100%;
            height: 250px;
            object-fit: cover;
            display: block;
        }

        .portfolio-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
            color: white;
            padding: 1.5rem;
        }

        .portfolio-overlay h3 {
            margin-bottom: 0.5rem;
        }

        .testimonial-section {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

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

        .testimonial-card {
            background-color: white;
            border-radius: 10px;
            padding: 2rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 4rem;
            color: rgba(52, 152, 219, 0.1);
            font-family: Georgia, serif;
        }

        .testimonial-content {
            margin-bottom: 1.5rem;
            font-style: italic;
            color: #555;
            line-height: 1.6;
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
        }

        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 1rem;
        }

        .author-info h4 {
            color: var(--dark);
            margin-bottom: 0.2rem;
        }

        .author-info p {
            color: #777;
            font-size: 0.9rem;
        }

        .closing-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
        }

        .closing-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .closing-content h2 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
        }

        .closing-content p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 2rem;
            }

            .hero-content p {
                font-size: 1rem;
            }

            .section-title h2 {
                font-size: 1.8rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Animation */
        @keyframes float {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        .floating {
            animation: float 3s ease-in-out infinite;
        }