body {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', sans-serif;
}
header {
  display: flex;
  flex-direction: row;
  margin: 20px 10%;
  position: relative;
}
header .logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  color: #BDBDBD;
}
header .logo img {
  width: 35px;
  margin-right: 5px;
}
header ul {
  list-style: none;
  display: flex;
  margin-left: 5%;
  width: 30%;
  justify-content: space-around;
  font-weight: 700;
  color: #878787;
}
header ul li {
  margin: 0 5px;
}
header:after {
  content: '';
  position: absolute;
  top: -200px;
  left: -250px;
  z-index: -1;
  width: 300px;
  height: 300px;
  border-radius: 300px;
  border: 20px solid #f5f5f5;
}
main {
  display: flex;
  align-items: center;
  margin-left: 10%;
}
.left_side {
  width: 40%;
}
.left_side h1 {
  font-weight: 700;
  font-size: 50px;
  background: #50badc;
  background: linear-gradient(to right, #57b9da, #50badc, #20a0ca);
  -webkit-background-clip: text;
  color: transparent;
}
.left_side h4 {
  font-size: 0.9em;
  font-weight: 500;
  line-height: 22px;
  color: #878787;
}
.left_side button {
  padding: 15px 30px;
  margin: 20px 10px 0 0;
}
.left_side .social {
  margin: 60px 0 0;
}
.left_side .social button {
  padding: 10px;
}
p.show_more {
  color: #878787;
  display: flex;
  align-items: center;
  margin-left: 10%;
}
p.show_more i {
  margin-left: 15px;
  font-size: 40px;
  color: #d3d3d3;
  -webkit-text-stroke: 2px white;
}
.main_btn {
  border: none;
  outline: none;
  cursor: pointer;
  background: none;
  font-weight: 500;
  color: white;
  position: relative;
  background: #50badc;
  background: -webkit-linear-gradient(to right top, #57b9da, #50badc, #20a0ca);
  background: linear-gradient(to right top, #57b9da, #50badc, #20a0ca);
  letter-spacing: 1px;
  border-radius: 30px;
}
.main_btn.second {
  background: #50badc;
}
.outline_btn {
  border: 2px solid #50badc;
  outline: none;
  cursor: pointer;
  background: none;
  color: #50badc;
  position: relative;
  letter-spacing: 1px;
  border-radius: 25px;
}
.right_side {
  width: 55%;
  position: relative;
}
.right_side > div {
  /* background-image: url("https://images.unsplash.com/photo-1544717302-de2939b7ef71?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=700&q=80");
  background-size: cover;
  background-position: right center; */
  position: relative;
  float: right;
  width: 65%;
  height: 62vh;
}
.right_side img{
  width: 100%;
}
.right_side > div:after {
  content: '';
  width: 70%;
  height: 92vh;
  position: absolute;
  z-index: -1;
  left: 5%;
  top: -122px;
  background: #50badc;
  background: -webkit-linear-gradient(to right top, #57b9da, #50badc, #20a0ca);
  background: linear-gradient(to right top, #57b9da, #50badc, #20a0ca);
}
.right_side > div:before {
  content: '';
  position: absolute;
  top: 260px;
  left: -100px;
  width: 50px;
  height: 50px;
  border-radius: 80px;
  border: 40px solid #b1e5f8;
}
.right_side:after {
  content: '';
  position: absolute;
  top: -50px;
  right: -55px;
  z-index: -1;
  width: 150px;
  height: 150px;
  background-image: radial-gradient(circle at 3px 3px, #50badc 3px, transparent 0);
  background-size: 20px 20px;
}
.section-intro {
  display: flex;
  margin: 150px 10%;
}
.section-intro .item {
  -webkit-box-shadow: 5px 5px 20px -6px rgba(0, 0, 0, 0.25);
  -moz-box-shadow: 5px 5px 20px -6px rgba(0, 0, 0, 0.25);
  box-shadow: 5px 5px 20px -6px rgba(0, 0, 0, 0.25);
  margin-right: 25px;
  padding: 40px 30px;
  width: 40%;
}
.section-intro .item button {
  padding: 20px;
  border-radius: 40px;
  font-size: 20px;
  -webkit-box-shadow: 0px 0px 30px 0px rgba(80, 186, 220, 0.9);
  -moz-box-shadow: 0px 0px 30px 0px rgba(80, 186, 220, 0.9);
  box-shadow: 0px 0px 30px 0px rgba(80, 186, 220, 0.9);
}
.section-intro .item h5 {
  font-weight: 700;
  font-size: 15px;
  position: relative;
  margin-bottom: 50px;
}
.section-intro .item h5::after {
  content: '';
  width: 60px;
  height: 3px;
  position: absolute;
  left: 0;
  bottom: -25px;
  background: #50b9dc;
  background: -webkit-linear-gradient(to right top, #57b9da, #50badc, #20a0ca);
  background: linear-gradient(to right top, #57b9da, #50badc, #20a0ca);
}
.section-intro .item p {
  color: #878787;
  line-height: 25px;
}
.section-intro .text_content {
  margin-left: 30px;
}
.section-intro .text_content h2 {
  font-weight: 700;
  font-size: 35px;
}
.section-intro .text_content p {
  width: 80%;
  color: #878787;
  line-height: 25px;
}
.section-intro .text_content button {
  padding: 10px;
}
.section-intro .text_content button:first-of-type {
  padding: 15px 30px;
  margin: 20px 10px 0 0;
}
.section-intro .text_content i {
  font-size: 20px;
  margin-left: 4px;
  color: transparent;
  -webkit-text-stroke-width: 1.8px;
  -webkit-text-stroke-color: #50badc;
}
@media only screen and (max-width: 1000px) {
  main {
    flex-direction: column;
  }
  .left_side,
  .right_side {
    width: 100%;
  }
  .left_side .social {
    margin: 20px 0 40px;
  }
  .right_side > div {
    float: none;
    margin: 0 auto;
  }
  .right_side:after {
    right: 55px;
  }
  p.show_more {
    margin-top: 65px;
  }
  .right_side div {
    width: 90%;
  }
  .right_side div:after {
    top: -12px;
    height: 70vh;
  }
  .section-intro {
    margin-top: 30px;
    -webkit-flex-flow: row wrap;
    justify-content: space-around;
  }
  .section-intro .item {
    width: 35%;
  }
  .section-intro .text_content {
    float: left;
  }
}
@media only screen and (max-width: 1220px) {
  .section-intro {
    margin-top: 75px;
    -webkit-flex-flow: row wrap;
    justify-content: space-around;
  }
  .section-intro .item {
    width: 35%;
  }
  .right_side > div {
    height: 78vh;
  }
  .right_side > div:after {
    height: 80vh;
  }
}
@media only screen and (max-width: 725px) {
  .section-intro .item {
    width: 100%;
  }
  header {
    justify-content: space-between;
  }
  .right_side > div {
    padding-top: 10vh;
  }
}
@media (max-width: 400px) {
  header ul {
    display: none;
  }
}