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

        :root {
            --primary: #0066cc;
            --secondary: #00a3e0;
            --accent: #ff6b35;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #3d4144;
            --gradient: linear-gradient(152deg,rgba(25, 229, 210, 1) 10%, rgba(138, 77, 232, 1) 100%, rgba(253, 187, 45, 1) 96%);
        }
        
        
        
            body {
             font-family: "Inter", sans-serif;
            line-height: 1.6;
            color: var(--dark);
            overflow-x: hidden;
        }

        i{
            color:#FDBB2D;
            margin-right: 10px;
        }

        /* topbar */
        .topbar{
            display:block;
            height: 55px;
            width: 100%;
            padding: 5px 7.5%;
background: #181a19;
            color:white;
            font-size: 1.3rem;
            display:flex;
            justify-content: space-between;
            align-items: center;
        }

        /* Navigation */
        nav {
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .nav-container {
            max-width: 90%;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding:20px 40px;
        }

        .logo img{
            height: 50px;
            width: 150px;
        }

        .nav-links {
            display: flex;
            gap: 3rem;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
            font-size: 1.4rem;
            padding-bottom: 5px;
        }

        .nav-links a:hover {
            color: #4d64e8;
            font-weight: bold;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 4px;
            background: #FDBB2D;
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .cta-button {
            background-color: #FDBB2D;
            color: black;
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 1.3em;
        }

        .cta-button:hover {
            box-shadow: 0 5px 15px rgba(54, 27, 1, 0.4);
         background: #ff8400;
background: linear-gradient(212deg, rgba(255, 132, 0, 1) 0%, rgba(252, 203, 69, 1) 100%);
        }


        /* Hero Section */
        .hero {
            background-image: url("assets/img/hero_bg.jpg");
            background-size: cover;
            color: white;
            padding: 120px 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            height: 750px;
            display:flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        

        .hero-content {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            font-size: 5rem;
            margin-bottom: 1.5rem;
            font-weight: 700;
            animation: fadeInUp 0.8s ease;
        }

        .hero p {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            opacity: 0.95;
            animation: fadeInUp 0.8s ease 0.2s backwards;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            animation: fadeInUp 0.8s ease 0.4s backwards;
        }

        .btn-primary,
        .btn-secondary {
            font-size:1.3rem;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .btn-primary {
            background: white;
            color: var(--primary);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
        }

        .btn-secondary {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .btn-secondary:hover {
            background: white;
            color: var(--primary);
        }

        /* Sections */
        section {
            padding: 80px 2rem;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            color: #1FA6E8
        }

        .section-title p {
            font-size: 1.7rem;
            color: var(--gray);
            max-width: 50%;
            margin: 0 auto;
        }

        /* Company Intro */
        .company-intro {
            background:#f1f1f1;
        }

        .intro-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 3rem;
            margin-top: 3rem;
        }

        .intro-card {
            font-size: 1.3rem;
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease-in-out;
            border-bottom: solid 10px #1f76e8;
        }

        .intro-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
            border:solid 3px #1f76e8;
            cursor: pointer;
        }

        .intro-card h3 {
            color: #f8aa03;
            margin-bottom: 1rem;
            font-size: 2.1rem;
            
        }

        .certifications  .intro-card h3 {
            color: rgb(2, 83, 175)
        }

        .intro-card p {
            color: var(--dark);
            line-height: 1.8;
        }

        /* Products Section */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(30%, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .product-card {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .product-card:hover {
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(0, 102, 204, 0.15);
            transform: translateY(-5px);
        }

        .product-icon{
            background-color: #dadef7;
        }
        .product-icon img {
            height: 300px;
            width: 100%;
        }

        .product-content {
            padding: 2rem;
            background-color: #dadef7;
        }

        .product-content h3 {
            color: var(--dark);
            margin-bottom: 1rem;
            font-size: 1.8rem;
        }

        .product-content p {
            color: var(--gray);
            font-size: 1.2rem;
        }

        /* Industries Section */
        .industries {
            background: #e3f1fa;
            padding-bottom: 5rem;
        }

        .industries-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(25%, 1fr));
            gap: 2rem;
        }

       

        .industries h1{
            font-size: 3.8rem;
            color:#3366f3
        }

        .industry-item {
            position: relative;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            height: 320px;
            width: 100%;
        }

       
        .industry-title{
            position:absolute;
            top:0;
            left:0;
            height: 100%;
            width:100%;
            background-color: rgba(0, 0, 0, 0.1);
            z-index: 50;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            cursor:pointer;
            color:white;
        }

         .industry-title h2,  .industry-title p{
            display:none
         }


          .industry-title p{
            font-size: 1.7rem;
            color: orange;
          }

        .industry-item img{
            height: 100%;
            width: 100%;
        }

        .industry-item:hover {
            transition: all 0.3s ease-in-out;
            transform: scale(1.01);
         }

         .industry-title:hover {
         background-color: rgba(0, 2, 5, 0.801);
        }

        .industry-title:hover h2, .industry-title:hover p{
            display:block
        }

        .industry-title h2{
            font-size: 2.3rem;
        }

       

        /* Why Choose WTC */
        .why-choose {
            background: var(--dark);
            color: white;
        }

        .why-choose .section-title h2,
        .why-choose .section-title p {
            color: white;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(30%, 1fr));
            gap: 2.5rem;
            margin-top: 3rem;
        }

        .feature-item {
            text-align: center;
            padding: 2rem;
        }

         .feature-item h3{
            font-size: 2rem !important;
            color: rgb(255, 209, 2);

         }
          .feature-item p{
            font-size: 1.5rem !important;
            font-weight: 300;
          }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: rgb(166, 243, 239);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 2rem;
        }

        .feature-item h3 {
            margin-bottom: 1rem;
            font-size: 1.4rem;
        }

        .feature-item p {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
        }

        /* Certifications */
        .certifications {
            text-align: center;
            background-image: url("assets/img/iso.jpg");
            background-repeat: no-repeat;
            background-size: 100%;
        }

         .certifications h2{
            color:orangered
         }

        .cert-grid {
            display: flex;
            justify-content: center;
            gap: 3rem;
            flex-wrap: wrap;
            margin-top: 3rem;
        }

        .cert-badge {
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            min-width: 200px;
            transition: transform 0.3s ease;
            cursor: pointer;
            background-color: rgb(4, 18, 49);
        }

        .cert-badge:hover {
            transform: translateY(-10px);
        }

         .cert-badge p{
            font-size: 1.3rem;
            color:white !important
         }

        .cert-badge h4 {
            color: rgb(233, 2, 2);
            font-size: 2rem;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }

        /* A propos */
        .apropos{
            font-size: 1.6rem;
        }

        
         .company-intro h2{
            margin-bottom: 100px;
        }

         .apropos h3{
            font-size: 2rem;
            color: rgb(221, 144, 2);
        }

        /* innovation */
        #innovation{
            background-image: url("assets/img/inno.jpg");
            background-position: top center;  
            background-repeat: no-repeat; 
            background-size: 45%;
        }

        #innovation .section-title p{
            color:rgb(0, 0, 0)
        }

          #innovation .intro-card{
            background-color: #ececec !important;
            transition: all 0.2s ease-in-out ;
          }

        #innovation h2{
            color:rgb(7, 7, 7)
        }

            #innovation .section-title{
                margin-bottom: 5rem;
            }

         #innovation h3{
            color: #f3a005;
         }

          #innovation .intro-card:hover{
            background-color: white!important;
          }

        /* Contact Section */
        .contact {
            background: var(--light);
        }

        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            margin-top: 3rem;
        }

        .contact-form {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
        }
        .form-label{
            font-size: 1.2rem;
            font-weight: bold;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            transition: border-color 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 150px;
        }

        .submit-btn {
            background-color:  rgba(250, 163, 0);
            color: black;
            padding: 1rem 2.5rem;
            border: none;
            border-radius: 50px;
            font-size: 1.3rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 30px;
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            background-color: rgb(5, 29, 136);
            color:white
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .info-item {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }

        .info-item h3 {
            color: var(--primary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .info-item p {
            color: var(--gray);
            line-height: 1.8;
        }


        .contact-card{
                background-color: #e8fcfa;
            border-radius:10px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            margin-bottom: 30px;
            gap:3px;
            padding: 5px;
            text-align: center;
box-shadow: 5px 5px 15px rgba(0,0,0,0.3); 
    cursor: pointer;       
}


.contact-card:hover{
                background-color: #ffffff;

}

        .contact-card i{
            font-size: 3rem;
            color: rgb(21, 174, 221);
        }
             .contact-card h3{
                font-size: 2rem;
                color:rgb(2, 77, 148)
             }

             .contact-card p{
                font-size: 1.2rem;
                color: #032858;
             }

        #contact{
            background: #d4fdff;
background: linear-gradient(147deg, rgba(212, 253, 255, 1) 0%, rgba(38, 209, 203, 1) 100%);
         }

        #contact h1{
            font-size: 4rem;
            color:rgb(4, 75, 155);
            font-weight: bold;
        }

         #contact p{
            font-size: 1.5rem;
            margin-bottom: 30px;
            color:rgb(1, 50, 105);
         }

        /* Footer */
        footer{
            padding:20px 5%;
            background: #264ba3;
            background: linear-gradient(226deg, rgba(38, 75, 163, 1) 0%, rgba(2, 40, 120, 1) 100%); 
            color:white;
            font-size: 1.4rem;
        }

        .list-unstyled li a:hover{
            color:orange!important
        }

        .lien-rapide{
            font-size: 1.5rem;
            color:rgb(247, 209, 43)
        }

        .entreprise-name{
            font-size: 1.6rem;
            letter-spacing: 1.7px;
        }
        
        /* Responsive Design */
        @media (max-width: 768px) {
             #innovation{
            background-size: 100%;
        }

             .certifications {
            background-size: cover;
        }

             .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100%, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .industries-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100%, 1fr));
            gap: 2rem;
        }

        .industries h1{
            font-size: 4rem;
        }

        .industry-item {
            height: 320px;
            width: 100%;
        }
            
        .nav-container {
            padding:40px 10px;
        }
            .mobile-menu-btn {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            }

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

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

            .hero p {
                font-size: 1.1rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .contact-container {
                grid-template-columns: 1fr;
            }

            .section-title h2 {
                font-size: 2rem;
            }
             #innovation{
            background-image: url("assets/img/inno.jpg");
        }
         #innovation h2{
            font-size: 3rem;
            margin-bottom: 40px;
        }
        #innovation .section-title p{
            width: 100%;
            color:black;
        }
    }

        #scrollTopBtn {
            text-align: center;
            width: 70px;
            background-color: rgb(36, 140, 238);
            height: 100px;
            border-radius: 15px;
            display: none;
            font-size: 20px;
            z-index: 999;
        }
           #scrollTopBtn i{
            font-size: 2.2rem;
            font-weight: bolder;
            color:white
           }