:root {
            --primary: #2c3e50;
            --secondary: #3498db;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --text: #333;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        /* Navigation */
        header {
            background-color: var(--primary);
            position: fixed;
            width: 100%;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            color: white;
            font-size: 1.8rem;
            font-weight: 700;
            text-decoration: none;
        }
        
        .logo span {
            color: var(--secondary);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: var(--secondary);
        }
        
        .hamburger {
            display: none;
            cursor: pointer;
            color: white;
            font-size: 1.5rem;
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1460925895917-afdab827c52f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1415&q=80');
            background-size: cover;
            background-position: center;
            height: 100vh;
            display: flex;
            align-items: center;
            color: white;
            text-align: center;
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            animation: fadeIn 1s ease;
        }
        
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            animation: fadeIn 1.5s ease;
        }
        
        .btn {
            display: inline-block;
            background-color: var(--secondary);
            color: white;
            padding: 12px 30px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            background-color: var(--primary);
            transform: translateY(-3px);
        }
        
        .btn-whatsapp {
            background-color: #25D366;
            margin-left: 10px;
        }
        
        /* Services Section */
        .services {
            padding: 100px 0;
            background-color: var(--light);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--secondary);
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .service-card {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            transition: transform 0.3s;
            text-align: center;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
        }
        
        .service-icon {
            font-size: 3rem;
            color: var(--secondary);
            margin-bottom: 20px;
        }
        
        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        /* Portfolio Section */
        .portfolio {
            padding: 100px 0;
        }
        
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .portfolio-item {
            position: relative;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: var(--shadow);
            height: 250px;
        }
        
        .portfolio-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .portfolio-item:hover img {
            transform: scale(1.1);
        }
        
        .portfolio-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(52, 152, 219, 0.8);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.5s;
            padding: 20px;
            text-align: center;
            color: white;
        }
        
        .portfolio-item:hover .portfolio-overlay {
            opacity: 1;
        }
        
        /* About Section */
        .about {
            padding: 100px 0;
            background-color: var(--light);
        }
        
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        
        .about-text h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .about-text p {
            margin-bottom: 20px;
        }
        
        .about-image img {
            width: 100%;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        /* Contact Section */
        .contact {
            padding: 100px 0;
        }
        
        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        
        .contact-info {
            display: flex;
            flex-direction: column;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .contact-icon {
            font-size: 1.5rem;
            color: var(--secondary);
            margin-right: 15px;
        }
        
        .contact-form {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }
        
        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        
        /* Modal de confirmation */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            max-width: 500px;
            width: 90%;
        }
        
        .modal-icon {
            font-size: 3rem;
            color: #25D366;
            margin-bottom: 20px;
        }
        
        .modal-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
        }
        
        /* Footer */
        footer {
            background-color: var(--primary);
            color: white;
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-logo {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .footer-logo span {
            color: var(--secondary);
        }
        
        .footer-links h4 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-links h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--secondary);
        }
        
        .social-icons {
            display: flex;
            gap: 15px;
        }
        
        .social-icons a {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            transition: all 0.3s;
        }
        
        .social-icons a:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        /* Animations */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .about-content,
            .contact-content {
                grid-template-columns: 1fr;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
        }
        
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--primary);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                transition: left 0.3s;
            }
            
            .nav-links.active {
                left: 0;
            }
            
            .nav-links li {
                margin: 20px 0;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            .modal-buttons {
                flex-direction: column;
            }
        }
        
        @media (max-width: 576px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .service-card,
            .portfolio-item {
                max-width: 100%;
            }
        }