:root {
            --primary-color: #0056b3; /* Deep Blue */
            --secondary-color: #007bff; /* Brighter Blue */
            --accent-color: #20c997; /* Teal/Cyan */
            --background-color: #f4f7f6; /* Very Light Cool Gray */
            --card-background: #ffffff; /* White */
            --text-color-dark: #343a40; /* Dark Gray */
            --text-color-light: #ffffff; /* White */
            --hover-color: #004085; /* Darker Blue for hover */
            --nav-height: 70px; /* Define a altura da barra de navegação */
             --hero-gradient-red: rgba(180, 50, 50, 0.8); /* Reddish tone for gradient */
            --hero-gradient-white: rgba(255, 255, 255, 0); /* Transparent white for gradient */

            --padrao-0:rgba(170,0,0,1.0);
            --padrao-9:rgba(170,0,0,.9);
            --padrao-8:rgba(170,0,0,.8);
            --padrao-7:rgba(170,0,0,.7);
            --padrao-6:rgba(170,0,0,.6);
            --padrao-5:rgba(170,0,0,.5);
            --padrao-4:rgba(170,0,0,.4);
            --padrao-3:rgba(170,0,0,.3);
            --padrao-2:rgba(170,0,0,.2);
            --padrao-1:rgba(170,0,0,.1);

            --silver-0:rgba(70,70,70,1.0);
            --silver-9:rgba(70,70,70,.9);
            --silver-8:rgba(70,70,70,.8);
            --silver-7:rgba(70,70,70,.7);
            --silver-6:rgba(70,70,70,.6);
            --silver-5:rgba(70,70,70,.5);
            --silver-4:rgba(70,70,70,.4);
            --silver-3:rgba(70,70,70,.3);
            --silver-2:rgba(70,70,70,.2);
            --silver-1:rgba(70,70,70,.1);

            --padrao-2-0:rgba(247, 247, 247,1.0);
            
            --branco-0:#fff;
            --branco-1:rgba(255,255,255,.1);
            --branco-2:rgba(255,255,255,.2);
            --branco-3:rgba(255,255,255,.3);
            --branco-4:rgba(255,255,255,.4);
            --branco-5:rgba(255,255,255,.5);
            --branco-6:rgba(255,255,255,.6);
            --branco-7:rgba(255,255,255,.7);
            --branco-8:rgba(255,255,255,.8);
            --branco-9:rgba(255,255,255,.9);
        }

        body {
            font-family: 'Open Sans', sans-serif;
            margin: 0;
            padding: 0;
            background-color: var(--background-color);
            color: var(--text-color-dark);
            line-height: 1.2;
            scroll-behavior: smooth; /* Smooth scrolling for anchor links */
        }

        /* --- */

        /* ---  */

        /* --- Header Styles --- */
        header {
            background: var(--padrao-0);
            color: var(--text-color-light);
            padding: 10px 0; /* Padding for top and bottom of header content */
            position: relative; /* Needed for positioning the mobile nav */
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 20px; /* Horizontal padding for content */
        }

        .brand h1 {
            font-family: 'Poppins', sans-serif;
            margin: 0;
            font-size: 2.5em;
            letter-spacing: 1px;
        }

        .brand p {
            font-size: 1.1em;
            margin-top: 5px;
            opacity: 0.9;
        }

        /* Hamburger Menu Toggle Button */
        .menu-toggle {
            display: none; /* Hidden by default on desktop */
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            z-index: 1001; /* Above nav links */
        }

        .menu-toggle .bar {
            display: block;
            width: 25px;
            height: 3px;
            margin: 5px auto;
            background-color: var(--text-color-light);
            transition: all 0.3s ease-in-out;
        }

        /* --- Main Navigation Bar --- */
        #main-nav {
            background: var(--padrao-2-0);
            padding: 15px 0;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height); /* Set a fixed height for the sticky nav */
            display: flex; /* Use flex to align content */
            justify-content: center; /* Center the nav links container */
            align-items: center; /* Vertically center content */
            border-bottom: 1px solid var(--padrao-0);
        }

        .nav-links {
            display: flex;
            justify-content: center;
            align-items: center;
            max-width: 1100px;
            width: 100%; /* Take full width within its container */
            padding: 0 20px; /* Horizontal padding */
        }

        .nav-links a {
            color: var(--silver-0);
            margin: 0 20px;
            text-decoration: none;
            font-weight: 600;
            font-family: 'Poppins', sans-serif;
            font-size: 1.1em;
            transition: color 0.3s ease, transform 0.3s ease;
            display: inline-flex; /* For icons */
            align-items: center;
        }

        .nav-links a i {
            margin-right: 8px;
            font-size: 1.2em; /* Icon size */
        }

        .nav-links a:hover {
            color: var(--padrao-0); /* Teal on hover */
            transform: translateY(-2px);
        }

        h2 {
            font-family: 'Poppins', sans-serif;
            margin-top: 0;
            margin-bottom: 0.8em;
            color: var(--primary-color);
            text-align: center;
            font-size: 2em;
        }

        section {
            padding-top: calc(var(--nav-height) + 10px); /* Space for sticky nav + content padding */
            padding-bottom: 50px;
            margin: 0 auto; /* Center sections */
            max-width: 100%; /* Max width for content */
            background: var(--card-background);
            border-radius: 10px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
        }

        section p {
            font-size: 1.1em;
            text-align: justify;
        }

        .services, .mission-values {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: auto;
            margin-top: 30px;
        }

        .card {
            background: var(--card-background);
            color: var(--text-color-dark);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
            border: 1px solid #e0e0e0; /* Subtle border */
            display: flex;
            flex-direction: column;
            justify-content: space-between; /* Pushes content to top, if needed */
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
            background-color: #f8f9fa; /* Slightly darker on hover */
        }

        .card h3 {
            font-family: 'Poppins', sans-serif;
            color: var(--secondary-color);
            margin-top: 0;
            font-size: 1.5em;
            margin-bottom: 15px;
        }

        .card p {
            font-size: 1em;
            flex-grow: 1; /* Allows paragraphs to take available space */
        }

        #contatos {
            background: var(--primary-color); /* Use primary for contrast */
            color: var(--text-color-light);
            padding-top: calc(var(--nav-height) + 50px); /* Space for sticky nav */
            padding-bottom: 50px;
            text-align: center;
            border-radius: 10px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
        }

        #contatos h2 {
            color: var(--text-color-light); /* White for heading */
            margin-bottom: 1.5em;
        }

        #contatos p {
            font-size: 1.2em;
            margin-bottom: 15px;
            text-align: center;
        }

        #contatos p strong {
            color: var(--accent-color); /* Teal for labels */
        }

        /* --- Responsive Styles for Navigation --- */
        @media (max-width: 768px) {
            .header-content {
                padding: 10px 20px; /* Adjust padding for header content */
            }

            .brand h1 {
                font-size: 2em;
            }
            .brand p {
                font-size: 1em;
            }

            .menu-toggle {
                display: block; /* Show hamburger on mobile */
            }

            #main-nav {
                position: relative; /* Make nav relative to header for absolute positioning of links */
                box-shadow: none; /* Remove shadow if it overlaps */
                padding: 0; /* Reset padding */
                height: auto; /* Auto height for mobile nav bar */
                background: var(--secondary-color); /* Ensure background is applied */
            }

            .nav-links {
                display: none; /* Hide links by default on mobile */
                flex-direction: column;
                width: 100%;
                position: absolute; /* Position relative to #main-nav */
                top: 100%; /* Position below the #main-nav bar */
                left: 0;
                background: var(--secondary-color); /* Background for dropdown */
                padding: 20px 0;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1); /* Shadow for dropdown */
                z-index: 999; /* Below toggle button */
            }

            .nav-links.nav-active {
                display: flex; /* Show links when active */
            }

            .nav-links a {
                margin: 5px 0; /* Reduced margin */
                padding: 12px 20px; /* Padding for clickable area */
                width: 100%; /* Full width links */
                text-align: left; /* Align text to left */
                justify-content: flex-start; /* Align icon and text to start */
                border-bottom: 1px solid rgba(255, 255, 255, 0.1); /* Separator */
            }
            .nav-links a:last-child {
                border-bottom: none; /* No border for the last item */
            }

            .nav-links a i {
                margin-right: 15px; /* More space for icons */
            }

            /* Adjust section padding to make space for the sticky nav */
            section {
                padding-top: 100px; /* Enough space for the sticky nav */
                margin-top: 0; /* Reset margin-top for sections */
            }
            /* Adjust header padding to make space for the sticky nav */
            header {
                padding-bottom: 0; /* No bottom padding here, nav will handle it */
            }

            /* Adjustments for the header container to ensure it doesn't get hidden */
            .header-content {
                padding-bottom: 10px; /* Space for the bars */
            }
        }

        /* Specific styles for the hamburger animation */
        .menu-toggle.is-active .bar:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .menu-toggle.is-active .bar:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.is-active .bar:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* Adjustments for smaller screens within the media query */
        @media (max-width: 480px) {
            .brand h1 {
                font-size: 1.8em;
            }
            .nav-links a {
                font-size: 1em;
                padding: 12px 20px;
            }
            .nav-links a i {
                margin-right: 10px;
            }
        }