:root {
            /* Updated palette: industrial, modern, and professional */
            --primary-steel: #1e2a44; /* Deep steel blue */
            --accent-orange: #f97316; /* Vibrant orange for CTAs */
            --neutral-light: #f8fafc; /* Light background */
            --neutral-dark: #1f2937; /* Dark text and accents */
            --neutral-mid: #6b7280; /* Mid-tone gray */
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        body {
            font-family: 'Inter', sans-serif;
            color: var(--neutral-dark);
            background-color: var(--neutral-light);
        }

        /* Topbar */
        .topbar {
            background: var(--primary-steel);
            color: var(--neutral-light);
            padding: 0.75rem 0;
            font-size: 0.875rem;
        }

        .topbar a {
            color: var(--neutral-light);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .topbar a:hover {
            color: var(--accent-orange);
        }

        .topbar .social-icons a {
            margin-left: 1.25rem;
            font-size: 1rem;
        }

        /* Navbar */
        .navbar {
            background: var(--neutral-light);
            padding: 1rem 0;
            box-shadow: var(--shadow);
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--primary-steel);
        }

        .navbar-nav .nav-link {
            color: var(--neutral-dark);
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-orange);
        }
        .navbar .dropdown-menu{
          background-color: #ffeadc;
        }
        .navbar .dropdown-menu .dropdown-item:hover{
          color: var(--accent-orange);
        }
        .navbar .dropdown-menu .dropdown-item:active{
          color: var(--neutral-light);
          background-color: var(--accent-orange);
        }

        .navbar .navbar-btn {
            background: var(--accent-orange);
            color: var(--neutral-light);
            padding: 0.6rem 1.5rem;
            border-radius: 0.375rem;
            font-weight: 600;
            border: 2px solid var(--accent-orange);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .navbar .navbar-btn:hover {
            background: var(--neutral-light);
            color: var(--accent-orange);
            border: 2px solid var(--accent-orange);
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, var(--primary-steel) 0%, var(--neutral-light) 100%);
            padding: 5rem 0;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 80 80" opacity="0.05"%3E%3Cpath d="M14 16H9v-2h5V9.87a4 4 0 1 1 2 0V14h5v2h-5v15.95A10 10 0 0 0 23.66 27l-3.46-2 8.2-2.2-2.9 5a12 12 0 0 1-21 0l-2.89-5 8.2 2.2-3.46 2A10 10 0 0 0 14 31.95V16z" fill="%23f97316"/%3E%3C/svg%3E');
            background-repeat: repeat;
            z-index: -1;
        }

        .hero .eyebrow {
            color: var(--accent-orange);
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .hero h1 {
            font-weight: 900;
            font-size: 2.5rem;
            line-height: 1.2;
            color: var(--neutral-light);
        }

        .hero p {
            color: var(--neutral-light);
            font-size: 1.1rem;
            max-width: 40rem;
        }

        .hero-btn {
            background: var(--accent-orange);
            color: var(--neutral-light);
            padding: 0.75rem 1.75rem;
            border: 2px solid var(--accent-orange);
            border-radius: 0.375rem;
            font-weight: 600;
            text-decoration: none;
            z-index: 11;
            transition: all 0.3s ease;
        }

        .hero-btn:hover {
            background: var(--neutral-light);
            color: var(--accent-orange);
            border: 2px solid var(--accent-orange);
        }

        /* Section titles */
        .section-title {
            font-weight: 800;
            font-size: 2.25rem;
            color: var(--primary-steel);
        }

        .section-subtitle {
            color: var(--neutral-mid);
            font-size: 1.1rem;
            max-width: 600px;
        }

        /* Category tabs */
        .nav-pills .nav-link {
            color: var(--neutral-dark);
            font-weight: 600;
            border-radius: 0.375rem;
            padding: 0.75rem 1.5rem;
        }

        .nav-pills .nav-link.active {
            background: var(--accent-orange);
            color: var(--neutral-light);
        }

        .product-card {
            border: none;
            border-radius: 0.5rem;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .product-card-img {
            height: 220px;
            overflow: hidden;
        }

        .product-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .product-card-link {
            background: var(--accent-orange);
            color: var(--neutral-light);
            padding: 0.6rem 1.2rem;
            border-radius: 0.375rem;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .product-card-link:hover {
            background: var(--neutral-light);
            color: var(--accent-orange);
            border: 2px solid var(--accent-orange);
        }

        /* Feature list */
        .feature-icon {
            width: 48px;
            height: 48px;
            background: var(--accent-orange);
            color: var(--neutral-light);
            border-radius: 0.75rem;
            display: grid;
            place-items: center;
            font-size: 1.25rem;
        }

        /* Counter section */
        .counter-section {
            background: var(--primary-steel);
            padding: 3rem 0;
        }

        .counter-col {
            text-align: center;
        }

        .counter-col img {
            width: 50px;
            margin-bottom: 1rem;
        }

        .counter-col p {
            color: var(--neutral-light);
            font-size: 1.15rem;
            font-weight: 500;
        }

        /* Contact */
        .cta {
            background: var(--accent-orange);
            border-radius: 0.75rem;
            padding: 3rem;
        }

        .cta h3 {
            color: var(--neutral-light);
            font-weight: 800;
            font-size: 2rem;
        }

        .cta p {
            color: var(--neutral-light);
            font-size: 1.25rem;
        }

        .cta-number a {
            background: var(--neutral-light);
            color: var(--primary-steel);
            padding: 0.75rem 1.5rem;
            border-radius: 2rem;
            border: 2px solid var(--neutral-light);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .cta-number a:hover {
            background: var(--primary-steel);
            color: var(--neutral-light);
            border: 2px solid var(--neutral-light);
        }
        @media (max-width:768px){
            .cta-flex{
                flex-direction: column;
                align-items: center;
            }
        }

        /* Footer */
        footer {
            background: var(--primary-steel);
            color: var(--neutral-light);
            padding: 3rem 0;
        }
        .footer-heading{
            color: var(--accent-orange);
            padding-bottom: 5px;
            display: inline-block;
            font-weight: 600;
            position: relative;
        }
        .footer-heading::before{
            content: "";
            position: absolute;
            top: 110%;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--accent-orange);
        }

        footer a {
            color: var(--neutral-light);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        footer a:hover {
            color: var(--accent-orange);
        }

        footer .social-icons a {
            margin-left: 1rem;
            font-size: 1.2rem;
        }


        /* about page  */
        .about-hero {
            background: linear-gradient(135deg, var(--primary-steel) 0%, var(--neutral-light) 100%);
            padding: 5rem 0;
            position: relative;
            overflow: hidden;
        }

        .about-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 80 80" opacity="0.1"%3E%3Cpath d="M14 16H9v-2h5V9.87a4 4 0 1 1 2 0V14h5v2h-5v15.95A10 10 0 0 0 23.66 27l-3.46-2 8.2-2.2-2.9 5a12 12 0 0 1-21 0l-2.89-5 8.2 2.2-3.46 2A10 10 0 0 0 14 31.95V16z" fill="%23f97316"/%3E%3C/svg%3E');
            background-repeat: no-repeat;
        }
        

        .about-hero h1 {
            font-weight: 900;
            font-size: 2.5rem;
            line-height: 1.2;
            color: var(--neutral-light);
        }

        .about-hero p {
            color: var(--neutral-light);
            font-size: 1.1rem;
            max-width: 40rem;
        }
        .about-hero .eyebrow {
            color: var(--accent-orange);
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        .about-hero-btns span{
          color: var(--accent-orange);
            font-weight: 500;
            text-transform: uppercase;
            position: relative;
            z-index: 11;
        }
        .about-hero-btns a{
            color: var(--accent-orange);
            font-weight: 600;
            text-decoration: none;
            text-transform: uppercase;
            position: relative;
            z-index: 11;
            transition: all 0.3s ease;
        }
        .about-hero-btns a:hover{
          color: var(--neutral-light);
        }

        .about-hero-btn:hover {
            background: var(--neutral-light);
            color: var(--accent-orange);
            border: 2px solid var(--accent-orange);
        }


        .vision-card{
          padding: 1rem;
          text-align: center;
          background-color: #ffeadc;
          transition: all 0.3s ease;
        }
        .vision-card:hover{
          transform: translateY(-8px);
          box-shadow: var(--shadow);
        }
        .vision-card-img{
          width: 80px;
          padding: 1rem;
          height: auto;
          background-color: var(--accent-orange);
          display: flex;
          align-items: center;
          justify-content: center;
          margin: auto;
          border-radius: 10px;
        }
        .vision-card-img img{
          width: 100%;
          height: auto;
        }
        .vision-card a{
            background-color: var(--accent-orange);
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            font-weight: 600;
            color: var(--neutral-light);
            text-decoration: none;
            transition: all;
        }
        .vision-card a:hover{
            color: var(--accent-orange);
            background-color: var(--neutral-light);
            border: 2px solid var(--accent-orange);
        }


        .item-card{
          text-align: center;
          background-color: #ffeadc;
          padding: 0.5rem;
          transition: all 0.3s ease;
        }
        .item-card:hover{
          transform: translateY(-8px);
          box-shadow: var(--shadow);
        }
        .item-card-img{
          width: 80px;
          height: auto;
          background-color: var(--accent-orange);
          display: flex;
          align-items: center;
          justify-content: center;
          margin: auto;
        }
        .item-card-img img{
          width: 100%;
          height: auto;
        }
        .item-card a{
            background-color: var(--accent-orange);
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            font-weight: 600;
            color: var(--neutral-light);
            text-decoration: none;
            transition: all;
        }
        .item-card a:hover{
            color: var(--accent-orange);
            background-color: var(--neutral-light);
            border: 2px solid var(--accent-orange);
        }

        /* contact page  */
        
        .contact-form {
            background: var(--neutral-light);
            border-radius: 0.5rem;
            box-shadow: var(--shadow);
            padding: 2rem;
        }

        .contact-form .form-control {
            border-radius: 0.375rem;
            border: 1px solid var(--neutral-mid);
            padding: 0.75rem;
        }

        .contact-form .form-control:focus {
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 0.2rem rgba(249, 115, 22, 0.25);
        }

        .contact-form .btn-submit {
            background: var(--accent-orange);
            color: var(--neutral-light);
            padding: 0.75rem 1.5rem;
            border: 2px solid var(--accent-orange);
            border-radius: 0.375rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .contact-form .btn-submit:hover {
            background: var(--neutral-light);
            color: var(--accent-orange);
            border: 2px solid var(--accent-orange);
        }

        /* Contact Info */
        .contact-info {
            background: var(--primary-steel);
            border-radius: 0.5rem;
            padding: 2rem;
            color: var(--neutral-light);
        }
        .contact-info .phone-img{
          width: 60px;
          height: auto;
          padding: 0.5rem;
          background-color: #ffeadc;
          border-radius: 10px;
        }
        .contact-info .phone-img img{
          width: 100%;
          height: auto;
        }
        .contact-info .phone-content p{
          color: var(--neutral-light);
        }
        .contact-info a {
            color: var(--accent-orange);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .contact-info a:hover {
            color: var(--neutral-light);
        }
        .contact-info .loc-icon i{
          color: var(--accent-orange);
        }

        .hydraulic-list{
          line-height: 2;
        }
        .hydraulic-list li i{
          color: var(--accent-orange);
          margin-right: 0.5rem;
        }
        .why-choose-img {
          width: 100%;
          max-height: 300px;
        }
        .why-choose-img img{
          width: 100%;
          height: auto;
        }

        
        .list-group-item {
            border: none;
            border-left: 4px solid var(--accent-orange);
            border-radius: 10px;
            margin-bottom: 20px;
            padding: 20px;
            background: #ffeadc;
            transition: all 0.3s ease;
        }
        .list-group-item:hover {
            background: #ffdac2;
            transform: scale(1.02);
        }
        .step-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-steel);
            margin-bottom: 8px;
        }
        .step-description {
            font-size: 1rem;
            color: #495057;
            line-height: 1.6;
        }
        .list-group-numbered > li::before {
            font-weight: 600;
            color: var(--accent-orange);
            margin-right: 10px;
        }



        /* ======================================= half inch hydraulic ball page ======================================= */
        
        .product-slider .carousel-inner img {
            max-width: 600px;
            height: 400px;
            object-fit: contain;
        }
        .thumbnail-container {
            display: flex;
            gap: 10px;
            margin-top: 10px;
            overflow-x: auto;
            padding-bottom: 10px;
        }
        .thumbnail-container img {
            width: 80px;
            height: 80px;
            object-fit: cover;
            cursor: pointer;
            border: 2px solid transparent;
            transition: border 0.3s;
        }
        .thumbnail-container img.active {
            border: 2px solid var(--accent-orange);
        }
        .product-content {
            padding: 20px;
        }
        .product-content h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .product-content p {
            margin-bottom: 1rem;
        }
        .price {
            font-size: 1.5rem;
            color: var(--accent-orange);
            margin-bottom: 1rem;
        }
        .feature-list i{
            color: var(--accent-orange);
        }
        .product-btn{
            background-color: var(--neutral-light);
            color: var(--accent-orange);
            border: 2px solid var(--accent-orange);
            font-weight: 600;
            transition: all;
        }
        .product-btn:hover{
            background-color: var(--accent-orange);
            color: var(--neutral-light);
        }
        @media (max-width: 767px) {
            .product-slider .carousel-inner img {
                height: 300px;
            }
            .thumbnail-container img {
                width: 60px;
                height: 60px;
            }
            .ferrule-row-reverse{
                flex-direction: column-reverse;
            }
        }