:root {
  --light: #fff;
  --medium: #888;
  --dark: #333;
  --shadow: 0 1px 5px rgba(97, 97, 97, 0.9);
}

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  background-color: #222;
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Utilities */
html {
  scroll-behavior: smooth;
}
.container {
  width: 90%;
  margin: auto;
}
h1,
h2,
h3,
h4,
p {
  line-height: 1.3;
}
ul {
  list-style-type: none;
}
a {
  text-decoration: none;
}
.btn {
  background: transparent;
  padding: 10px 30px;
  border: 2px solid var(--medium);
}
img {
  width: 100%;
}
video {
  width: 500px;
  height: 300px;
  border: 1px solid #fff;
}

/* Media Querry */
@media screen and (max-width: 900px) {
    header .burger {
        display: block;
      }
  .navlinks {
      position: absolute;
      top: 10vh;
      right: 30px;
      height: 400px;
      background-color: var(--medium);
      width: 60%;
      margin: auto;
      border-radius: 20px;
      transform: translateX(120%);
      transition: .3s;
  }
  .navlinks{
      flex-direction: column;
      justify-content: center;
      align-items: center;
      margin-top: 90px;
  }
  .navlinks li{
      margin: 20px 0;
  }
  .navlinks{
      font-size: 28px;
  }
  video {
    width: 400px;
    height: 200px;
  }

  header .hero h1 {
    font-size: 44px;
    margin-bottom: 20px;
  }
  header .hero p {
    font-size: 16px;
    width: 100%;
    margin-bottom: 20px;
  }

  /* Section-a */
  .section-a h1 {
    font-size: 42px;
    margin-bottom: 30px;
    margin-top: 30px;
  }
  .section-a .lead {
    font-size: 16px;
    text-align: center;
    margin-bottom: 10px;
  }

  .section-a .row {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 10px;
  }
  .section-a .text {
    width: 400px;
    height: 60px;
    background-color: var(--dark);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
  }

  /* B */
  .section-b h1 {
    font-size: 42px;
    color: var(--light);
    margin: 20px 0 10px 0;
  }
  .section-b p {
    font-size: 18px;
    color: var(--light);
    margin-bottom: 10px;
  }

  .section-b .row {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  .section-b .col {
    margin: 0;
  }

  .section-b video {
    margin: 0;
  }

  
  .section-b .col1 > div {
    width: 400px;
  }

  .nav-active{
    transform: translateX(0%);
  }
  /* C */

  .section-c h1 {
    font-size: 42px;
  }
  .section-c p {
    text-align: center;
    font-size: 22px;
  }

  .section-c .row {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

.section-c .col {
  margin: 20px 0;
}

}