* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary: #0d47a1;
            --secondary: #133e79;
            --accent: #eeff00;
            --light: #e3f2fd;
            --dark: #333;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --btCinza: #666;
            --icons: #eeff00;
            --branco: #fff;
            --darkbg: #333;
        }
        
        body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(to bottom, #ffffff, #e3f2fd);
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f3f4f6;
            min-height: 200vh; /* Para demonstrar o scroll */
        }

        /* Header principal - não fixo */
        header {
            background: white;
            color: var(--primary);
            padding: 20px 0;
            position: relative;
            box-shadow: var(--shadow);
            border: 1px solid var(--primary);
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .logo-section i {
            font-size: 2.5rem;
            color: var(--accent);
        }

        .logo-section h1 {
            font-size: 2rem;
            margin: 0;
        }

        .logo-section p {
            margin: 0;
            opacity: 0.9;
            font-size: 0.9rem;
        }
        .logo{
            width: 120px;
        }
        /* Menu container - agora fixo logo abaixo do header */
        .menu-container {
            position: fixed;
            top: 105px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        #toggle {
            -webkit-appearance: none;
            appearance: none;
        }

        .button {
            position: absolute;
            z-index: 999;
            width: 550px; /* Aumentado para acomodar mais itens */
            height: 65px;
            background: var(--primary);
            border-radius: 15px;
            cursor: pointer;
            display: flex;
            justify-content: left;
            align-items: center;
            padding: 0 24px;
            overflow: hidden;
            transition: width 300ms linear;
            box-shadow: var(--shadow);
        }

        .button:before {
            position: absolute;
            content: "";
            width: 20px;
            height: 2px;
            background: var(--icons);
            transform: rotate(225deg);
            transition: all 0.4s ease;
        }

        .button:after {
            position: absolute;
            content: "";
            width: 20px;
            height: 2px;
            background: var(--icons);
            transform: rotate(135deg);
            transition: all 0.4s ease;
        }

        .nav {
            opacity: 1;
            transition: all 0.5s ease-in-out;
            background: var(--secondary);
            width: 100%;
            border-radius: 15px;
            transform: translateX(10%);
            padding: 15px;
        }

        .nav ul {
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: row;
        }

        .nav li {
            opacity: 0;
            list-style: none;
        }

        .nav li:nth-child(1) {
            transform-origin: bottom;
            animation: itop 300ms 300ms linear forwards;
        }

        .nav li:nth-child(2) {
            transform-origin: bottom;
            animation: itop 300ms 400ms linear forwards;
        }

        .nav li:nth-child(3) {
            transform-origin: bottom;
            animation: itop 300ms 500ms linear forwards;
        }

        .nav li:nth-child(4) {
            transform-origin: bottom;
            animation: itop 300ms 600ms linear forwards;
        }

        .nav li:nth-child(5) {
            transform-origin: bottom;
            animation: itop 300ms 700ms linear forwards;
        }

        .nav li:nth-child(6) {
            transform-origin: bottom;
            animation: itop 300ms 800ms linear forwards;
        }

        .nav a {
            transition: all 0.5s linear;
            text-decoration: none;
            color: var(--accent);
            font-size: 20px;
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 10px 0 0;
            border-radius: 15px;
        }

        .nav a:hover {
            color: var(--branco);
            background: var(--darkbg);
            border-radius: 15px;
            transform: translateY(-2px);
        }

        #toggle:checked ~ label .nav {
            display: none;
            opacity: 0;
            transform: translateX(0);
        }

        #toggle:checked ~ .button:before {
            transform: rotate(90deg);
        }

        #toggle:checked ~ .button:after {
            transform: rotate(0deg);
        }

        #toggle:checked ~ .button {
            width: 70px;
            transition: all 0.1s linear;
        }

        @keyframes itop {
            0% {
                opacity: 0;
                transform: translateY(60px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Conteúdo principal */
        main {
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 15px;
        }
        
        section {
            background: white;
            border-radius: 10px;
            box-shadow: var(--shadow);
            padding: 50px;
            margin-bottom: 30px;
            width: 100%;
        }
        
        h2 {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            padding-bottom: 10px;
            margin-bottom: 20px;
            font-size: 1.8rem;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        h3 {
            color: var(--primary);
            padding-bottom: 10px;
            margin-bottom: 20px;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .section-icon {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            box-shadow: 0 3px 10px rgba(0,0,0,0.2);
        }
        
        .historia-icon { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
        .arquitetura-icon { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
        .requisitos-icon { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
        .prototipos-icon { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
        .grupo-icon { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }
        .colaboradores-icon { background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%); }
        .atas-icon { background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%); }
        
        p {
            margin-bottom: 15px;
            line-height: 1.7;
        }
        
        .tecnologia {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 10px;
            margin: 20px 0;
        }
        
        .tec {
            padding: 8px 10px;
            border-radius: 15px 0 15px 15px;
            text-align: center;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            transition: transform 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 5px;
            font-weight: 500;
            color: white;
        }
        
        .tec:hover {
            transform: translateY(-3px);
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        
        th, td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: left;
        }
        
        th {
            background-color: var(--primary);
            color: white;
        }
        
        tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        
        .prototipo-container {
            margin: 25px 0;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .prototipo-container iframe {
            width: 100%;
            height: 450px;
            border: none;
        }
        

        .colaboradores-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        
        .colaborador {
            text-align: center;
            transition: transform 0.3s ease;
        }
        
        .colaborador:hover {
            transform: translateY(-5px);
        }
        
        .foto {
            width: 120px;
            height: 120px;
            border-radius: 20%;
            overflow: hidden;
            margin: 0 auto 10px;
            border: 3px solid var(--secondary);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        
        .foto img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .foto-placeholder {
            background: #ddd;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #777;
            font-size: 3rem;
        }

        footer {
            background: var(--secondary);
            color: white;
            text-align: center;
            padding: 20px 0;
            margin-top: 40px;
        }


        .btn {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 12px 24px;
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s ease;
            margin-top: 15px;
        }

        .btn:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 20px;
            }

            .logo-section h1 {
                font-size: 1.5rem;
            }

            .menu-container {
                width: 100%;
                justify-content: center;
            }

            .button {
                width: 280px;
            }
            
            .tecnologia {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .colaboradores-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .prototipo-container iframe {
                height: 300px;
            }
            
            table {
                display: block;
                overflow-x: auto;
            }
        }

        @media (min-width: 768px) and (max-width: 991px) {
            .tecnologia {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .colaboradores-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (min-width: 992px) { 
            section {
                padding: 30px;
            }
            
            .colaboradores-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        @media (min-width: 1200px) {
            .colaboradores-grid {
                grid-template-columns: repeat(7, 1fr);
            }
        }

    .container-card {
      display: flex;
      flex-wrap: wrap;
      gap: 50px;
      justify-content: center;
    }

    .card {
      background-color: white;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      padding: 20px;
      width: 100%;
      max-width: 400px;
      transition: transform 0.2s ease-in-out;
      margin-bottom: 35px;
    }

    .card:hover {
      transform: scale(1.03);
    }

    .card h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }

    .card p {
      color: #555;
    }

    @media (min-width: 600px) {
      .card {
        flex: 1 1 calc(33.333% - 40px); /* 3 cards por linha com gap */
      }
    }