* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --yellow: #FFBE1D;
            --red: #C21515;
            --blue: #2180CE;
            --white: #ffffff;
            --black: #000000;
            --gray: #f8f9fa;
            --light-gray: #e9ecef;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: var(--black);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            padding: 1rem 0;
            transition: all 0.3s ease;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            z-index: 1001;
        }
        
        .hamburger span {
            width: 25px;
            height: 3px;
            margin: 3px 0;
            transition: 0.3s;
        }
        
        /* Page Header */
        .page-header {
            background: linear-gradient(135deg, var(--blue), var(--red));
            color: var(--white);
            padding: 120px 0 80px;
            text-align: center;
            margin-top: 70px;
        }
        
        .page-header h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            animation: fadeInUp 1s ease;
        }
        
        .page-header p {
            font-size: 1.2rem;
            animation: fadeInUp 1s ease 0.2s both;
        }
        
        /* Portfolio Filter */
        .portfolio-filter {
            padding: 60px 0;
            background: var(--white);
            text-align: center;
        }
        
        .filter-buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }
        
        .filter-btn {
            background: var(--light-gray);
            color: var(--black);
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        
        .filter-btn:hover,
        .filter-btn.active {
            background: var(--blue);
            color: var(--white);
        }
        
        /* Portfolio Grid */
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }
        
        .portfolio-item {
            background: var(--white);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            position: relative;
            border: 3px solid transparent;
        }
        
        .portfolio-item:hover {
            transform: translateY(-10px);
            border-color: var(--yellow);
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }
        
        .video-container {
            position: relative;
            height: 250px;
            overflow: hidden;
        }
        
        .video-iframe {
            width: 100%;
            height: 100%;
            border: none;
            transition: transform 0.3s ease;
        }
        
        .video-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, rgba(33, 128, 206, 0.9), rgba(194, 21, 21, 0.9));
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .portfolio-item:hover .video-overlay {
            opacity: 1;
        }
        
        .play-button {
            background: var(--yellow);
            border: none;
            border-radius: 50%;
            width: 70px;
            height: 70px;
            font-size: 2rem;
            color: var(--black);
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .play-button:hover {
            transform: scale(1.1);
            background: var(--white);
        }
        
        .portfolio-info {
            padding: 1.5rem;
        }
        
        .portfolio-info h3 {
            font-size: 1.3rem;
            color: var(--red);
            margin-bottom: 0.5rem;
        }
        
        .portfolio-info p {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        
        .portfolio-tags {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        
        .tag {
            background: var(--gray);
            color: var(--blue);
            padding: 4px 10px;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        /* Featured Projects */
        .featured-projects {
            padding: 80px 0;
            background: var(--gray);
        }
        
        .featured-projects h2 {
            text-align: center;
            font-size: 2.5rem;
            color: var(--red);
            margin-bottom: 3rem;
        }
        
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 3rem;
        }
        
        .featured-item {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        
        .featured-item:hover {
            transform: translateY(-10px);
        }
        
        .featured-video {
            position: relative;
            height: 300px;
        }
        
        .featured-video iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        .featured-info {
            padding: 2rem;
        }
        
        .featured-info h3 {
            font-size: 1.5rem;
            color: var(--red);
            margin-bottom: 1rem;
        }
        
        .featured-info p {
            color: #666;
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }
        
        .project-details {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .detail-item {
            background: var(--gray);
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
        }
        
        .detail-label {
            font-size: 0.8rem;
            color: #666;
            margin-bottom: 0.5rem;
        }
        
        .detail-value {
            font-weight: bold;
            color: var(--blue);
        }
        
        .view-project-btn {
            background: var(--yellow);
            color: var(--black);
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }
        
        .view-project-btn:hover {
            background: var(--blue);
            color: var(--white);
            transform: translateY(-2px);
        }
        
        /* Client Testimonials */
        .client-testimonials {
            padding: 80px 0;
            background: var(--white);
        }
        
        .client-testimonials h2 {
            text-align: center;
            font-size: 2.5rem;
            color: var(--red);
            margin-bottom: 3rem;
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .testimonial-card {
            background: var(--gray);
            padding: 2rem;
            border-radius: 15px;
            text-align: center;
            position: relative;
            transition: transform 0.3s ease;
        }
        
        .testimonial-card:hover {
            transform: translateY(-5px);
        }
        
        .testimonial-card::before {
            content: """;
            font-size: 4rem;
            color: var(--yellow);
            position: absolute;
            top: -10px;
            left: 20px;
        }
        
        .testimonial-text {
            font-style: italic;
            color: #666;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
        }
        
        .testimonial-author {
            font-weight: bold;
            color: var(--blue);
            margin-bottom: 0.5rem;
        }
        
        .testimonial-project {
            font-size: 0.9rem;
            color: #666;
        }
        
        .stars {
            color: var(--yellow);
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }
        
        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--blue), var(--red));
            color: var(--white);
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .cta-section p {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .cta-button {
            background: var(--yellow);
            color: var(--black);
            padding: 15px 30px;
            border: none;
            border-radius: 25px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .cta-button:hover {
            background: var(--white);
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }
        
        .cta-button.secondary {
            background: transparent;
            color: var(--white);
            border: 2px solid var(--white);
        }
        
        .cta-button.secondary:hover {
            background: var(--white);
            color: var(--blue);
        }
        
        /* Footer */
        footer {
            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 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-section p,
        .footer-section a {
            text-decoration: none;
            line-height: 1.8;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        
        .social-link {
            background: var(--blue);
            color: var(--white);
            padding: 10px;
            border-radius: 50%;
            text-decoration: none;
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .social-link:hover {
            background: var(--yellow);
            color: var(--black);
            transform: translateY(-3px);
        }
        
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }
        
        /* Mobile Responsive */
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: var(--white);
                flex-direction: column;
                justify-content: flex-start;
                align-items: center;
                padding-top: 2rem;
                transition: left 0.3s ease;
                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            }

            .nav-links.active {
                left: 0;
            }
            
            .hamburger {
                display: flex;
            }
            
            .page-header h1 {
                font-size: 2.5rem;
            }
            
            .portfolio-grid {
                grid-template-columns: 1fr;
            }
            
            .featured-grid {
                grid-template-columns: 1fr;
            }
            
            .filter-buttons {
                gap: 0.5rem;
            }
            
            .filter-btn {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }
        
        @media (max-width: 480px) {
            .page-header h1 {
                font-size: 2rem;
            }
            
            .portfolio-item,
            .featured-item,
            .testimonial-card {
                margin: 0 10px;
            }
            
            .container {
                padding: 0 15px;
            }
            
            .video-container,
            .featured-video {
                height: 200px;
            }
        }
        
        /* Portfolio item animations */
        .portfolio-item {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }
        
        .portfolio-item.animate {
            opacity: 1;
            transform: translateY(0);
        }
        
        .portfolio-item.hidden {
            display: none;
        }