:root {
            --primary-color: #0072b5;
            --secondary-color: #00a0e9;
            --accent-color: #00d0b6;
            --dark-color: #003366;
            --light-color: #f7f9fc;
            --text-color: #333333;
            --white: #ffffff;
            --border-radius: 8px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            background-color: var(--light-color);
        }
        
        /* Header e Navegação */
        header {
            background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
            color: var(--white);
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--white);
            text-decoration: none;
        }
        
        .logo span {
            color: var(--accent-color);
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 1.5rem;
        }
        
        nav ul li a {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 0.5rem 0;
        }
        
        nav ul li a:hover {
            color: var(--accent-color);
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            height: 2px;
            width: 0;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        
        nav ul li a:hover::after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
            color: var(--white);
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(0, 51, 102, 0.8), rgba(0, 51, 102, 0.8)), url('/api/placeholder/1600/900') center/cover no-repeat;
            padding: 200px 0 100px;
            text-align: center;
            color: var(--white);
        }
        
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        
        .btn {
            display: inline-block;
            background-color: var(--accent-color);
            color: var(--white);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
        }
        
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--white);
            margin-left: 1rem;
        }
        
        .btn-outline:hover {
            background-color: var(--white);
            color: var(--primary-color);
        }
        
        /* Sections comuns */
        section {
            padding: 80px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-header h2 {
            font-size: 2.5rem;
            color: var(--dark-color);
            margin-bottom: 1rem;
            position: relative;
            display: inline-block;
        }
        
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--accent-color);
        }
        
        .section-header p {
            font-size: 1.1rem;
            color: #666;
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* Sobre o Sistema */
        .about-system {
            background-color: var(--white);
        }
        
        .system-content {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 40px;
        }
        
        .system-text {
            flex: 1;
            min-width: 300px;
        }
        
        .system-text h3 {
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
        }
        
        .system-text p {
            margin-bottom: 1.5rem;
        }
        
        .system-img {
            flex: 1;
            min-width: 300px;
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        
        .system-img img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        
        .system-img:hover img {
            transform: scale(1.05);
        }
        
        /* Como Funciona */
        .how-it-works {
            background-color: var(--light-color);
        }
        
        .steps {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            counter-reset: step-counter;
        }
        
        .step-card {
            flex: 1;
            min-width: 250px;
            max-width: 350px;
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            position: relative;
            counter-increment: step-counter;
        }
        
        .step-card:hover {
            transform: translateY(-10px);
        }
        
        .step-card::before {
            content: counter(step-counter);
            position: absolute;
            top: -20px;
            left: 20px;
            width: 40px;
            height: 40px;
            background-color: var(--accent-color);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .step-card h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--dark-color);
        }
        
        .step-card p {
            color: #666;
        }
        
        /* Benefícios */
        .benefits {
            background-color: var(--white);
        }
        
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .benefit-card {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            z-index: 1;
            overflow: hidden;
        }
        
        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            z-index: -1;
            transition: var(--transition);
            opacity: 0;
            border-radius: var(--border-radius);
        }
        
        .benefit-card:hover::before {
            opacity: 1;
        }
        
        .benefit-card:hover {
            transform: translateY(-10px);
            color: var(--white);
        }
        
        .benefit-card:hover h3,
        .benefit-card:hover p,
        .benefit-card:hover i {
            color: var(--white);
        }
        
        .benefit-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            transition: var(--transition);
        }
        
        .benefit-card h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--dark-color);
            transition: var(--transition);
        }
        
        .benefit-card p {
            color: #666;
            transition: var(--transition);
        }
        
        /* Componentes do Sistema */
        .components {
            background-color: var(--light-color);
        }
        
        .components-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .component-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .component-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .component-img {
            height: 200px;
            overflow: hidden;
        }
        
        .component-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .component-card:hover .component-img img {
            transform: scale(1.1);
        }
        
        .component-content {
            padding: 25px;
        }
        
        .component-content h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark-color);
        }
        
        .component-content p {
            color: #666;
            margin-bottom: 20px;
        }
        
        /* Dashboard Preview */
        .dashboard-preview {
            background-color: var(--white);
            text-align: center;
        }
        
        .dashboard-img {
            max-width: 1000px;
            margin: 0 auto;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            position: relative;
        }
        
        .dashboard-img img {
            width: 100%;
            display: block;
        }
        
        .dashboard-img::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to right, rgba(0,114,181,0.2), transparent);
            pointer-events: none;
        }
        
        /* CTA Section */
        .cta {
            background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
            color: var(--white);
            text-align: center;
            padding: 80px 0;
        }
        
        .cta h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }
        
        .cta p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        
        .cta .btn {
            background-color: var(--white);
            color: var(--primary-color);
            font-size: 1.1rem;
            padding: 1rem 2.5rem;
        }
        
        .cta .btn:hover {
            background-color: var(--accent-color);
            color: var(--white);
        }
        
        /* Footer */
        footer {
            background-color: var(--dark-color);
            color: var(--white);
            padding: 60px 0 0;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-logo {
            flex: 2;
            min-width: 250px;
        }
        
        .footer-logo img {
            max-width: 200px;
            margin-bottom: 20px;
        }
        
        .footer-logo p {
            color: #ccc;
            margin-bottom: 20px;
        }
        
        .footer-links, .footer-contact {
            flex: 1;
            min-width: 200px;
        }
        
        .footer-links h3, .footer-contact h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-links h3::after, .footer-contact h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent-color);
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links ul li {
            margin-bottom: 10px;
        }
        
        .footer-links ul li a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links ul li a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        
        .contact-info {
            margin-bottom: 15px;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--accent-color);
        }
        
        .footer-bottom {
            background-color: rgba(0, 0, 0, 0.2);
            padding: 20px 0;
            text-align: center;
        }
        
        .footer-bottom p {
            color: #aaa;
        }
        
        /* Botão Voltar ao Topo */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            font-size: 1.2rem;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background-color: var(--accent-color);
            transform: translateY(-5px);
        }
        
        /* WhatsApp Float */
        .whatsapp-float {
            position: fixed;
            bottom: 30px;
            left: 30px;
            width: 60px;
            height: 60px;
            background-color: #25d366;
            color: var(--white);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            font-size: 1.8rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            z-index: 999;
            transition: var(--transition);
        }
        
        .whatsapp-float:hover {
            transform: scale(1.1);
        }
        
        /* Responsividade */
        @media (max-width: 992px) {
            .system-content, .steps, .benefits-grid {
                flex-direction: column;
            }
            
            .system-img {
                margin-top: 30px;
            }
            
            .components-container {
                grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .section-header h2 {
                font-size: 2rem;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            nav ul {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--dark-color);
                flex-direction: column;
                text-align: center;
                max-height: 0;
                overflow: hidden;
                transition: var(--transition);
            }
            
            nav ul.show {
                max-height: 400px;
            }
            
            nav ul li {
                margin: 0;
                padding: 15px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            
            .btn {
                padding: 0.7rem 1.5rem;
            }
            
            .footer-content {
                flex-direction: column;
            }
        }