        /* Custom CSS */
        :root {
            --primary-color: #2b3a55;
            --secondary-color: #ffd700;
            --accent-color: #2b3a55;
            --light-bg: #f8f9fa;
            --soft-gray: #f7f8fc;
            --light-blue: #f4f6ff;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
        }

        /* 3 Layer Navbar */
        .navbar-layer-1 {
            background-color: var(--primary-color);
            padding: 5px 0;
        }

        .navbar-layer-2 {
            background-color: var(--secondary-color);
            padding: 10px 0;
        }

        .navbar-layer-2 .navbar-brand,
        .navbar-layer-2 .text-white {
            color: var(--primary-color) !important;
        }

        .navbar-layer-3 {
            background-color: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            /* position: sticky; */
            top: 0;
            z-index: 1020;
        }

        .navbar-brand {
            font-weight: bold;
            font-size: 1.5rem;
        }

        .nav-link {
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1.5rem !important;
            border-right: 1px solid #ffd700;
            margin-right: 0.5rem;
            color: var(--primary-color) !important;
        }

        .nav-link:last-child {
            border-right: none;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-color) !important;
            background-color: var(--light-bg);
        }

        /* Hero Carousel */
        .hero-carousel {
            height: 100vh;
            min-height: 600px;
            position: relative;
        }

        .hero-carousel .carousel-item {
            height: 100vh;
            min-height: 600px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        }

        .hero-carousel .carousel-item img {
            height: 100%;
            object-fit: cover;
            filter: brightness(0.4);
        }

        .hero-carousel .carousel-caption {
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            transform: translateY(-50%);
            text-align: left;
            padding: 0 15px;
        }

        .hero-carousel .carousel-caption h1 {
            font-size: 3.5rem;
            font-weight: bold;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
        }

        .hero-carousel .carousel-caption p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
        }

        .btn-custom {
            padding: 12px 30px;
            margin: 10px;
            border-radius: 5px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .btn-primary-custom {
            background-color: var(--secondary-color);
            color: var(--primary-color);
            border: 2px solid var(--secondary-color);
            font-weight: bold;
        }

        .btn-primary-custom:hover {
            background-color: var(--primary-color);
            color: var(--secondary-color);
            border: 2px solid var(--secondary-color);
        }

        .btn-outline-custom {
            background-color: transparent;
            color: white;
            border: 2px solid white;
        }

        .btn-outline-custom:hover {
            background-color: white;
            color: var(--primary-color);
        }

        .btn-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* Services Section */
        .service-card {
            background: white;
            border-radius: 10px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            height: 100%;
            text-align: center;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }

        .service-icon {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 20px;
        }

        /* Process Section */
        .process-step {
            background: white;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
        }

        .process-number {
            background-color: var(--accent-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-right: 20px;
            flex-shrink: 0;
        }

        /* Testimonials */
        .testimonial {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            margin: 20px 0;
            text-align: center;
        }

        .testimonial i {
            color: var(--accent-color);
            font-size: 2rem;
            margin-bottom: 15px;
        }

        .section-title {
            color: var(--primary-color);
            font-weight: bold;
            margin-bottom: 3rem;
            text-align: center;
        }

        .content-section {
            padding: 80px 0;
        }

        /* Gallery styles */
        .gallery-item {
            margin-bottom: 30px;
            overflow: hidden;
            border-radius: 10px;
        }

        .gallery-item img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .gallery-item:hover img {
            transform: scale(1.05);
        }

        /* Commercial & Residential Section */
        .feature-section {
            margin-bottom: 40px;
        }

        .feature-section img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: 10px;
        }

        /* Footer */
        .footer {
            background-color: var(--primary-color);
            color: white;
            padding: 40px 0 20px 0;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .hero-carousel .carousel-caption h1 {
                font-size: 2.5rem;
            }

            .hero-carousel .carousel-caption p {
                font-size: 1.1rem;
            }

            .navbar-layer-1 .row>div {
                text-align: center !important;
                margin-bottom: 5px;
            }

            .navbar-layer-2 {
                text-align: center;
            }

            .btn-custom {
                display: block;
                margin: 10px auto;
                width: 80%;
            }

            .process-step {
                flex-direction: column;
                text-align: center;
            }

            .process-number {
                margin-bottom: 15px;
                margin-right: 0;
            }
        }

        @media (max-width: 576px) {
            .hero-carousel .carousel-caption h1 {
                font-size: 2rem;
            }

            .content-section {
                padding: 50px 0;
            }
        }

        /* extra */
        li.nav-item {
            border-right: 3px solid #ffd543;
        }