/* common */
    :root{
        --primary: #ffffff;
        --bg: #53aee1;
    }
    *{
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        outline: none;
        border: none;
        text-decoration: none;
    }
    html{
        scroll-behavior:smooth ;
    }
    body{
        font-family: 'Poppins', sans-serif;
        background-color: var(--primary);
        color: #fff;
    }
    .divider{
        background:black;
        margin:2rem auto;
        width:87%!important;
        height:0.15rem;
        clear:both;
    }
    .section-title{
        margin:3rem auto;
        padding:3rem auto;
        display:flex;
    }
    h1{
        color:#789;
        margin:3rem auto;
        padding:3rem auto;
        text-align:center;

    }
/* navbar */
    .navbar{
        display: flex;
        height:5.5em;
        justify-content: space-between;
        align-items: center;
        padding: 1.4% 0% 1.4% 4%;
        background: var(--bg);
        border-bottom: 1px solid var(--primary);
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 99999999;
    }
    .navbar .navbar-logo{
        margin-right:35%;
    }
    .navbar .navbar-logo img{
        width:21em;
        margin:-3 auto;
    }
    .navbar .navbar-logo span{
        color: var(--primary);
    }
    .navbar .navbar-nav a{
        color: var(--primary);
        display: inline-block;
        font-size: 1rem;
        margin: 0 1rem;
        text-decoration: none !important;
    }
    .navbar .navbar-nav a:hover{
        color: var(--primary);
    }
    .navbar .navbar-nav a::after{
        content:'';
        display: block;
        padding-bottom: 0.5rem;
        border-bottom: 0.1rem solid var(--primary);
        transform: scaleX(0);
        transition: 0.5s linier;
    }
    .navbar .navbar-nav a:hover::after{
        transform: scaleX(0.5);
    }
    .navbar .navbar-extra a{
        color: var(--primary);
    }
    #hamburger-menu{
        display: none;
    }
/* our best solutions */
    .obs{
        width: 100%;
        background-image: url('../img/obs/bg.png');
        background-size: cover;
        background-repeat: no-repeat;
        margin:0 auto;
        padding: 7% auto;
        justify-content:center;
        align-items: center;
    }
    .obs .title{
        width:100%;
    }
    .obs .title h3{
        margin-top:2vh;
        text-align: center;
        font-size: 2.5rem;
        margin-bottom: 3rem;
        color: #010101;
        text-shadow: 1px 1px 1px #fff;
    }
    .obs .content{
        display:flex;
        width:100%;
    }
    .obs .content .item{
        flex: 1;
        text-shadow:1px 1px 1px #010101;
        text-align: center;
        margin: 2% auto;
    }
    .obs .content .item img{
        height: 20em;
    }
/* about us */
    .about{
        width: 100%;
        background-image: url('../img/about/bg.png');
        background-size: cover;
        background-repeat: no-repeat;
        margin:0 auto;
        padding-top: 3%;
        padding-bottom:3%;
        justify-content:center;
        align-items: center;
    }
    .about .title{
        width:100%;
    }
    .about .title h3{
        text-align: center;
        font-size: 2.5rem;
        margin-bottom: 3rem;
        color: #ffffff;
        font-size: 38px;
        text-shadow: 1px 1px 1px #fff;
    }
    .about .section-text{
        color: #ffffff;
        width:100%;
        text-align: center;
    }
    .about .section-img{
        display:flex;
        width:100%;
        margin:1.5% auto;
    }
    .about .section-img img{
        height: 20em;
    }
/* products */
    .products{
        width: 90%;
        margin:0 auto;
        padding-top: 3%;
        padding-bottom:3%;
        justify-content:center;
        align-items: center;
    }
    .products .section-text{
        color: #ffffff;
        width:100%;
        text-align: center;
        margin:2% 2%;
    }
     .products .section-text .badge{
        flex: 1;
        margin:1% 2%;
        background-color: brown;
        border-radius: 0.9em;
        text-shadow:1px 1px 1px #010101;
        text-align: center;
        padding: 0.3% 0.5%;
    }
    .products .section-img{
        display:flex;
        width:97%;
        margin:0 auto;
    }
    .products .section-img .item{
        flex: 1;
        text-shadow:1px 1px 1px #010101;
        text-align: center;
        margin: 2% 2%;
        border:1px solid #3abef9;
        border-radius:1em;
    }
    .products .section-img .item img{
        height: 9em;
        width:7em;
        margin: 3% 3%;
    }
/* customers */
     .customers{
        width: 90%;
        margin:0 auto;
        padding: 7% auto;
        justify-content:center;
        align-items: center;
    }
    .customers .title{
        margin:0 auto;
        background: #06a00e;
    }
    .customers .title h3{
        margin-top:2vh;
        text-align: center;
        font-size: 2rem;
        margin-bottom: 3rem;
        color: #ffffff;
        text-shadow: 1px 1px 1px #fff;
    }
    .customers .section-img{
        display:flex;
        width:100%;
        margin:0 auto;
    }
    .customers .section-img .item{
        flex: 1;
        text-shadow:1px 1px 1px #010101;
        text-align: center;
        margin: 1% 2%;
    }
    .customers .section-img .item img{
        margin: 1% 3%;
    }
/* contact us */
    .contact{
        width: 100%;
        margin:0 auto;
        padding: 7% auto;
        justify-content:left;
        align-items: left;
        background-image: url('../img/footer/bg.png');
        background-size:cover;
        background-repeat: no-repeat;
    }
    .contact .section-text{
        display:flex;
        width:100%;
        margin:0 auto;
    }
    .contact .section-text .item{
        flex: 1;
        text-shadow:1px 1px 1px #010101;
        text-align: left;
        margin: 1% 2%;
    }
    .contact .section-text .item h2{
        margin:5% 0% 2% 0%;
    }
    .contact .section-text .right{
        margin:4% 4% 2% 0%;
        text-align:right;
    }
    .contact .section-text .item img{
        width:17em;
        margin: 1% 3%;
        background-color: #fff;
        border-radius:1em;
    }
/* laptop */
    @media(max-width: 1366px){
        html{
            font-size: 75%;
        }
    }
/* tablet */
    @media(max-width: 758px){
        html{
            font-size: 62.5%;
        }
        #hamburger-menu{
            display: inline-block;
        }
      /* nav */
        .navbar{
            padding-right:2%;
        }
        .navbar .navbar-logo{
            margin-left:0%;
        }
        .navbar .navbar-nav{
            position: absolute;
            top: 100%;
            right: -100%;
            background-color: var(--bg);
            width: 15rem;
            height: 100vh;
            transition: 0.3s;
            z-index:9999999999 !important;
        }
        .navbar .navbar-nav.active{
            right: 0;
            z-index:9999999999 !important;
        }
        .navbar .navbar-nav a{
            color: var(--primary);
            display: block;
            margin: 0.5rem;
            padding: 0.5rem;
            font-size: 1.3rem;
        }
        .navbar .navbar-nav a::after{
            transform-origin: 0 0;
            color: yellow;
        }
        .navbar .navbar-nav a:hover::after{
            transform:scaleX(0.2);
            color: yellow;
        }
      /*  our best solutions */
        .obs .title h3{
            font-size: 1.5rem;
        }
        .obs .content .item img{
            height:9em;
        }
      /* about us */
        .about{
            padding:2% 2%;
        }
        .about .section-text{
            text-align:justify ;
        }
        .about .title h3{
            font-size: 1.5rem;
        }
        .about .section-img img{
            height: 7.5em;
            margin:0 auto;
        }
      /* products */
        .products .section-img .item img{
            height: 7em;
            width:5em;
            margin: 0 auto;
        }
      /* customers */
        .customers .title h3{
            font-size: 1.5rem;
        }
        .customers .section-img .item img{
            width:5em;
            margin: 0 auto;
        }
      /* contact */
        .contact {
            padding-right:2%;
        }
        .contact .section-text .item h2{
            font-size:1.4em;
        }
        .contact .section-text .right{
            margin:4% 0% 2% 0%;
        }
        .contact .section-text .item img{
            width:13em;
            margin:0 auto;
        }
    }
/* mobile phone*/
    @media(max-width: 450){
        html{
            font-size: 55%;
        }
        .about .img-logo{
            width: 5rem;
            height: 5rem;
            z-index: 99999;
            border: 1px solid #1A76D1;
            border-radius: 50%;
        }
        .choose-us .text-top, .choose-us .text-bottom{
            margin:0% 0% !important;

        }
    }