:root {
        --primary-color: #0077be;
        --text-color: #333333;
        --background-color: #f0f0f0;
        --white: #ffffff;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Montserrat', sans-serif;
        line-height: 1.6;
        color: var(--text-color);
        background-color: var(--background-color);
    }

    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background-color: var(--white);
        padding: 1rem 5%;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .logo-img {
        height: 40px;
    }

    .nav-links {
        display: flex;
        list-style: none;
    }

    .nav-links li {
        margin-left: 2rem;
    }

    .nav-links a {
        text-decoration: none;
        color: var(--text-color);
        font-weight: 500;
        transition: color 0.3s ease;
    }

    .nav-links a:hover {
        color: var(--primary-color);
    }

    #main-content {
        min-height: calc(100vh - 130px);
        padding: 4rem 5%;
        text-align: center;
    }

    .hero h1 {
        font-size: 3.5rem;
        color: var(--text-color);
        margin-bottom: 1rem;
    }

    .hero span {
        color: var(--primary-color);
    }

    .hero p {
        font-size: 1.2rem;
        color: #666;
        margin-bottom: 3rem;
    }

    .services-preview {
        display: flex;
        justify-content: center;
        gap: 2rem;
    }

    .service-icon {
        background-color: var(--white);
        border-radius: 50%;
        width: 150px;
        height: 150px;
        display: flex;
        justify-content: center;
        align-items: center;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    .service-icon img {
        width: 60%;
        height: 60%;
    }

    footer {
        background-color: var(--primary-color);
        color: var(--white);
        text-align: center;
        padding: 1rem;
    }

    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
        }

        .nav-links {
            margin-top: 1rem;
        }

        .nav-links li {
            margin: 0 1rem;
        }

        .hero h1 {
            font-size: 2.5rem;
        }

        .services-preview {
            flex-direction: column;
            align-items: center;
        }
    }

    .about-section {
        padding: 80px 0;
        background-color: #f8f9fa;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .about-section h2 {
        text-align: center;
        color: #0066cc;
        font-size: 2.5rem;
        margin-bottom: 50px;
    }

    .about-content {
        display: flex;
        gap: 60px;
        align-items: center;
    }

    .about-text {
        flex: 1;
    }

    .about-text .lead {
        font-size: 1.25rem;
        color: #333;
        margin-bottom: 20px;
        font-weight: 500;
    }

    .about-features {
        display: flex;
        gap: 30px;
        margin-top: 40px;
    }

    .feature {
        text-align: center;
    }

    .feature-number {
        font-size: 2.5rem;
        font-weight: bold;
        color: #0066cc;
        display: block;
        margin-bottom: 8px;
    }

    .feature p {
        color: #666;
        font-size: 1rem;
    }

    .about-image {
        flex: 1;
    }

    .rounded-image {
        width: 100%;
        border-radius: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

    /* Responsive design */
    @media (max-width: 768px) {
        .about-content {
            flex-direction: column;
            gap: 40px;
        }
        
        .about-features {
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .feature {
            flex: 1 1 150px;
        }
    }

    .services-section {
        padding: 80px 0;
        background-color: var(--white);
    }

    .services-section h2 {
        text-align: center;
        color: #0066cc;
        font-size: 2.5rem;
        margin-bottom: 50px;
    }

    .services-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .service-card {
        background: white;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease;
    }

    .service-card:hover {
        transform: translateY(-5px);
    }

    .service-image {
        height: 300px;
        overflow: hidden;
    }

    .service-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .service-content {
        padding: 25px;
    }

    .service-content h3 {
        color: #0066cc;
        font-size: 1.4rem;
        margin-bottom: 15px;
    }

    .service-list {
        list-style-type: none;
        padding: 0;
    }

    .service-list li {
        position: relative;
        padding-left: 20px;
        margin-bottom: 10px;
        color: #666;
    }

    .service-list li::before {
        content: "•";
        color: #0066cc;
        position: absolute;
        left: 0;
        font-weight: bold;
    }

    /* Responsive design for services */
    @media (max-width: 768px) {
        .services-grid {
            grid-template-columns: 1fr;
        }
        
        .service-card {
            margin-bottom: 20px;
        }
    }

    .achievements-section {
        padding: 30px;
        background-color: #f9f9f9;
    }

    .achievements-section h2 {
        text-align: center;
        color: #000000;
        font-size: 2rem;
        margin-bottom: 35px;
    }

    .achievements-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin-top: 2rem;
    }

    .achievement-card {
        background: white;
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        text-align: center;
        transition: transform 0.3s ease;
    }

    .achievement-card:hover {
        transform: translateY(-5px);
    }

    .achievement-icon {
        font-size: 3rem;
        margin-bottom: 1rem;
    }

    .achievement-card h3 {
        color: #0066cc;
        margin-bottom: 1rem;
    }

    .achievement-card p {
        color: #666;
        line-height: 1.6;
    }

    .portfolio-section {
        padding: 30px;
        background-color: #f9f9f9;
    }

    .portfolio-section h2 {
        text-align: center;
        color: #000000;
        font-size: 2rem;
        margin-bottom: 35px;
    }

    .portfolio-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 20px;
        max-width: 1600px;
        margin: 0 auto;
        justify-items: center;
        justify-content: center;
    }

    .portfolio-bottom-row {
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: repeat(2, minmax(300px, 1fr));
        gap: 20px;
        width: 100%;
        max-width: 1000px;
        margin: 0 auto;
        justify-content: center;
    }

    .portfolio-column {
        background-color: #fff;
        border: 1px solid #ddd;
        border-radius: 8px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        padding: 20px;
        width: 100%;
        transition: transform 0.2s;
        height: fit-content;
    }

    .portfolio-column:hover {
        transform: translateY(-5px);
    }

    .portfolio-column details {
        margin-top: 10px;
    }

    .portfolio-column summary {
        font-weight: bold;
        font-size: 1.1em;
        cursor: pointer;
        color: #0073e6;
        outline: none;
    }

    .portfolio-column .sub-category h3 {
        font-size: 1em;
        margin: 10px 0;
        color: #555;
    }

    .portfolio-column .product-item {
        font-size: 0.9em;
        color: #666;
        padding-left: 10px;
        margin: 5px 0;
    }

    @media (max-width: 768px) {
        .portfolio-grid {
            padding: 0 15px;
        }
        
        .portfolio-column {
            max-width: 100%;
        }

        .portfolio-bottom-row {
            grid-template-columns: 1fr;
        }
    }

    .contact-section {
        padding: 80px 0;
        background-color: var(--white);
    }

    .contact-section h2 {
        text-align: center;
        color: #0066cc;
        font-size: 2.5rem;
        margin-bottom: 50px;
    }

    .contact-section .service-content a {
        color: #0066cc;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .contact-section .service-content a:hover {
        color: #004999;
        text-decoration: underline;
    }

    .contact-section .service-items p {
        margin: 15px 0;
        font-size: 1.1rem;
    }

    .map-container {
        height: 300px;
        width: 100%;
        position: relative;
    }

    .map-container iframe {
        border-radius: 15px 15px 0 0;
    }

    /* Add a hamburger menu for mobile */
    .menu-toggle {
        display: none;
        flex-direction: column;
        cursor: pointer;
        padding: 10px;
    }

    .menu-toggle span {
        height: 2px;
        width: 25px;
        background-color: var(--text-color);
        margin: 2px 0;
        transition: 0.4s;
    }

    @media (max-width: 768px) {
        .menu-toggle {
            display: flex;
        }

        .nav-links {
            display: none;
            width: 100%;
            text-align: center;
            padding: 20px 0;
        }

        .nav-links.active {
            display: flex;
            flex-direction: column;
        }

        .nav-links li {
            margin: 10px 0;
        }

        .navbar {
            padding: 1rem 20px;
        }
    }