style.scss

@import url("https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900&display=swap");

* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
   position: relative;
   font-family: "Poppins", sans-serif;
   scroll-behavior: smooth;
}
body {
   overflow-x: hidden;
}
.banner {
   position: relative;
   width: 100%;
   height: 100vh;
   background: #3475ca;
   display: flex;
   justify-content: center;
   align-items: center;
}
.banner img {
   position: absolute;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   object-fit: cover;
   opacity: 0.25;
}
.banner .content {
   position: relative;
   max-width: 750px;
   text-align: center;
}
.banner .content h2 {
   color: #fff;
   font-size: 60px;
}
.banner .content p {
   color: #fff;
   font-size: 18px;
}
header {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   padding: 40px 100px;
   display: flex;
   justify-content: space-between;
   align-items: center;
   z-index: 999;
   transition: 0.3s;
}
header.sticky {
   background: #111;
   padding: 20px 100px;
}
header .logo {
   color: #fff;
   text-decoration: none;
   font-size: 24px;
   text-transform: uppercase;
   font-weight: 700;
   letter-spacing: 1px;
}
header .toggle {
   position: relative;
   width: 36px;
   height: 28px;
   background: url("img/toggle.png");
   background-size: cover;
   cursor: pointer;
}
header .navigation {
   display: flex;
   position: fixed;
   top: 0;
   right: -300px;
   height: 100vh;
   width: 300px;
   background: #111;
   padding-top: 30px;
   justify-content: start;
   align-items: end;
   flex-direction: column;
   list-style: none;
   transition: 0.2s linear;
}
header .navigation li {
   margin-bottom: 30px;
   margin-right: 50px;
}
header .navigation .toggled {
   position: relative;
   width: 28px;
   height: 28px;
   background: url("img/close.png");
   background-size: cover;
   cursor: pointer;
}
header .navigation li a {
   text-decoration: none;
   color: #fff;
   font-weight: 300;
   font-size: 20px;
}
header .navigation li a:hover {
   color: #3475ca;
}
header .navigation.active {
   right: 0;
}

.about {
   position: relative;
   width: 100%;
   display: flex;
   background: #162c3b;
}
.about .contentBx {
   background: #162c3b;
   padding: 100px;
   width: 50%;
}
.about .imgBx {
   background: url("img/window.jpg");
   width: 50%;
   background-size: cover;
   background-position: center;
}

.heading {
   color: #fff;
   font-size: 30px;
   font-weight: 600;
   letter-spacing: 1px;
   margin-bottom: 10px;
}
.text {
   color: #fff;
   font-size: 16px;
   font-weight: 300;
   letter-spacing: 1px;
}

.services {
   background: #12222d;
   padding: 100px;
   text-align: center;
}
.services .container {
   width: 100%;
   display: flex;
   justify-content: space-between;
   align-items: center;
   flex-wrap: wrap;
   margin: 60px 0;
}
.services .container .serviceBx {
   position: relative;
   background: #fff;
   width: 350px;
   height: 400px;
   display: flex;
   justify-content: center;
   align-items: center;
   z-index: 1;
}
.services .container .serviceBx img {
   max-width: 100px;
}
.services .container .serviceBx h2 {
   font-weight: 500;
   font-size: 20px;
   letter-spacing: 1px;
}

.technology {
   background: #3f8ffc;
   width: 100%;
   padding: 100px;
   padding-top: 350px;
   margin-top: -350px;
   display: flex;
   justify-content: space-between;
   align-items: center;
}
.technology .contentBx {
   max-width: 800px;
}
.technology .imgBx {
   max-width: 250px;
}
.technology .imgBx img {
   max-width: 100%;
}

.client {
   background-color: #162c3b;
   padding: 100px;
   text-align: center;
}
.client .imgBx {
   display: flex;
   justify-content: space-between;
   align-items: center;
   flex-wrap: wrap;
   margin-top: 40px;
}
.client .imgBx img {
   max-width: 200px;
   margin: 20px;
   opacity: 0.25;
   cursor: pointer;
}
.client .imgBx img:hover {
   opacity: 1;
}

.testimonials {
   position: relative;
   padding: 100px;
   background: #12222d;
   text-align: center;
}
.testimonials .container {
   display: flex;
   justify-content: space-between;
   align-items: center;
   margin-top: 40px;
   flex-wrap: wrap;
}
.testimonials .container .contentBx {
   background: #fff;
   padding: 60px 50px;
   width: 550px;
   display: flex;
   justify-content: center;
   align-items: center;
   text-align: left;
}
.testimonials .container .contentBx p {
   font-style: italic;
}
.testimonials .container .contentBx h3 {
   width: 100%;
   text-align: end;
   font-weight: 500;
   color: #3f8ffc;
}

.contact {
   padding: 100px;
   background: #162c3b;
   text-align: center;
}
.imgBx2 {
   background: url("img/bg2.jpg");
   background-size: cover;
   background-position: center;
   width: 50%;
}
.redbg {
   background: url("img/red.jpg") !important;
   background-size: cover;
   background-position: center;
}
.form .inputBx {
   margin-bottom: 40px;
}
.form .inputBx input {
   width: 100%;
   background: transparent;
   box-shadow: none;
   border: none;
   outline: none;
   padding: 10px 0;
   font-size: 18px;
   font-weight: 300;
   color: #fff;
   border-bottom: 2px solid #fff;
}
.form .inputBx input::placeholder {
   color: #fff;
}
.form .inputBx textarea {
   width: 100%;
   background: transparent;
   box-shadow: none;
   border: none;
   outline: none;
   padding: 10px 0;
   font-size: 18px;
   font-weight: 300;
   color: #fff;
   min-height: 150px;
   resize: none;
   border-bottom: 2px solid #fff;
}
.form .inputBx textarea::placeholder {
   color: #fff;
}
.form .inputBx input[type="submit"] {
   width: 150px;
   background: #fff;
   color: #111;
   cursor: pointer;
   font-weight: 400;
   box-sizing: border-box;
   transition: 0.5s;
}
.form .inputBx input[type="submit"]:hover {
   letter-spacing: 2px;
}

footer {
   background: #162c3b;
   padding: 20px 100px;
   display: flex;
   justify-content: space-between;
   align-items: center;
}
footer ul {
   display: flex;
   justify-content: center;
   align-items: center;
   list-style: none;
}
footer ul li a {
   text-decoration: none;
   display: inline-block;
   margin: 0 10px;
}
footer ul li a img {
   filter: invert(1);
   max-width: 20px;
}

section {
   overflow: hidden;
}

@media (max-width: 991px) {
   .banner {
      padding: 50px;
   }
   .banner header {
      padding: 20px 50px;
   }
   header .logo {
      font-size: 20px;
   }
   header .toggle {
      width: 25px;
      height: 20px;
   }
   header .navigation li a {
      font-size: 15px;
   }
   header .navigation .toggled {
      width: 20px;
      height: 20px;
   }
   header.sticky {
      background: #111;
      padding: 15px 50px;
   }
   .banner .content h2 {
      font-size: 36px;
   }
   .banner .content p {
      font-size: 16px;
   }

   .about {
      flex-direction: column;
   }
   .about .contentBx,
   .about .imgBx {
      width: 100%;
      padding: 50px;
      min-height: 400px;
      text-align: center;
   }

   .services {
      padding: 50px;
   }
   .services .container {
      justify-content: center;
      margin: 0;
      margin-top: 20px;
   }
   .services .container .serviceBx {
      margin: 20px;
      width: 300px;
      height: 350px;
   }

   .technology {
      padding: 50px;
      padding-top: 350px;
      justify-content: center;
      flex-direction: column;
   }
   .technology .imgBx {
      margin-top: 40px;
      max-width: 250px;
   }

   .client {
      padding: 50px;
   }
   .client .imgBx {
      justify-content: center;
   }

   .testimonials {
      padding: 50px;
   }
   .testimonials .container {
      justify-content: center;
   }
   .testimonials .contentBx {
      padding: 60px 40px;
      max-width: 550px;
      margin-bottom: 40px;
   }
   .testimonials .contentBx:last-child {
      margin-bottom: 0;
   }

   .contact {
      padding: 50px;
   }

   footer {
      padding: 20px 50px;
      flex-direction: column-reverse;
      text-align: center;
   }
   footer ul {
      margin-bottom: 20px;
   }
}