body {
  font-family: 'Montserrat', sans-serif;
}

/* header */

header {
  height: 100vh;
  background: linear-gradient(rgba(0, 0, 0, .4), rgba(0, 0, 0, .5)), url(avio.png) no-repeat center center /cover;
}

/* navbar */
.nav-menu {
  background: linear-gradient(rgba(0, 0, 0, .3), rgba(0, 0, 0, .5));
  padding: 30px;
  transition: all .7s;
}

.menu-item {
  font-size: 13px;
  letter-spacing: 1px;
  color: #eee;
  transition: color .5s;
}

.menu-item:hover {
  color: #70aed2;
}

.nav-active {
  color: #70aed2;
}

.line1, .line2, .line3 {
  width: 23px;
  height: 3px;
  margin: 5px;
  transition: all .4s;
}

.change .line1 {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.change .line2 {
  opacity: 0;
}

.change .line3 {
  transform: rotate(45deg) translate(-5px, -6px);
}

.custom-navbar {
  padding: 5px 30px;
  background: linear-gradient(rgba(0, 0, 0, .6), rgba(0, 0, 0, .7));
}
/* end of navbar */

/* banner */
.banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
}

.banner-heading {
  animation-name: anim;
  animation-duration: 2s;
}

.banner-par {
  animation-name: anim;
  animation-duration: 2s;
  animation-delay: .5s;
  animation-fill-mode: backwards;
}

@keyframes anim {
  0% {
    transform: translateX(-100px);
    opacity: 0;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}
/* end of banner */

/* end of header */

/* mission */
.mission {
  background: #151f20;
}

.underline {
  width: 150px;
  border: 3px solid #eee;
  margin: auto;
}

.fromLeft {
  animation-name: fromLeft;
  animation-duration: 3s;
}

.fromRight {
  animation-name: fromRight;
  animation-duration: 3s;
}

@keyframes fromLeft {
  0% {
    transform: translateX(-120px);
    opacity: 0;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fromRight {
  0% {
    transform: translateX(30px);
    opacity: 0;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}
/* end of mission */