*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: inherit; }

html {
  font-size: 62.5%; }

body {
  box-sizing: border-box; }

body {
  font-family: Lato, sans-serif;
  font-weight: 400;
  line-height: 1.7;
  color: #777;
  padding: 3rem; }

.heading-primary {
  color: #fff;
  text-transform: uppercase; }
  .heading-primary--main {
    display: block;
    font-size: 6rem;
    font-weight: 400; }
  .heading-primary--sub {
    padding-left: 2px;
    display: block;
    text-align: left;
    font-size: 2.5rem;
    font-weight: 400; }

.heading-secondary {
  color: #0086ac;
  text-transform: uppercase;
  display: block;
  font-size: 3rem;
  font-weight: 650; }

.heading-tertiary {
  text-transform: uppercase;
  display: block;
  font-size: 2rem;
  font-weight: 600; }

.u-center-text {
  text-align: center !important; }

.u-margin-bottom-big {
  margin-bottom: 8rem !important; }

.u-margin-bottom-medium {
  margin-bottom: 4rem !important; }

.u-margin-bottom-small {
  margin-bottom: 1.5rem !important; }

.u-margin-top-huge {
  margin-top: 8rem !important; }

.u-margin-top-big {
  margin-top: 8rem !important; }

.u-margin-top-medium {
  margin-top: 4rem !important; }

.u-margin-top-small {
  margin-top: 1.5rem !important; }

.u-text-color-white {
  color: #fff !important; }

.u-clearfix {
  overflow: auto !important; }

.card {
  position: relative;
  height: 20rem;
  flex: 0 0 33%; }
  .card__side {
    background-color: #fff;
    text-align: center;
    padding: 2.5rem 1.5rem;
    font-size: 2rem;
    height: 25rem;
    transition: all .8s ease;
    position: absolute;
    top: 0;
    left: 0;
    backface-visibility: hidden;
    border-radius: 3px;
    overflow: hidden;
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
    width: 100%; }
    .card__side--back {
      transform: rotateY(180deg); }
  .card__title {
    font-size: 2.5rem;
    font-weight: 400;
    color: #0086ac; }
  .card__info {
    font-size: 1.5rem;
    color: #333; }
  .card__icon {
    color: #0086ac;
    font-size: 5.5rem; }
  .card:hover .card__side--front {
    transform: rotateY(-180deg); }
  .card:hover .card__side--back {
    transform: rotateY(0); }

.technology {
  background-color: #fff;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
  padding: 5rem;
  margin: 0 auto;
  width: 70%; }
  .technology__heading {
    text-align: center;
    font-size: 3rem;
    font-weight: 400; }
  .technology__list ul {
    list-style: none; }
    .technology__list ul li {
      text-align: center;
      padding: 2rem;
      padding-bottom: 1rem;
      font-size: 1.8rem;
      font-weight: 500; }
      .technology__list ul li:not(:last-child) {
        border-bottom: 1px solid #777; }

.course {
  border-radius: 3px;
  background-color: #fff;
  box-shadow: 0rem 1rem 2rem #000;
  color: #000;
  transition: all .3s;
  flex: 0 0 25%; }
  .course:hover {
    box-shadow: 0rem 2rem 4rem #000;
    transform: translateY(-3px); }
  .course:active {
    box-shadow: 0rem 1rem 2rem #000;
    transform: translateY(3px); }
  .course__img {
    width: 100%; }
  .course__title {
    padding: 3rem 3rem 3rem 1rem;
    text-transform: uppercase;
    display: block;
    font-size: 3rem;
    font-weight: 400; }
  .course__price {
    font-size: 2rem;
    font-weight: 500;
    float: right; }
    .course__price--old {
      font-size: 1.5rem;
      display: inline-block;
      color: #999;
      text-decoration: line-through; }
    .course__price--new {
      display: inline-block;
      padding: 2rem 2rem 2rem 0.5rem; }

.form {
  background-color: #fff;
  border-radius: 3px;
  box-shadow: 0rem 1.2rem 2rem #777;
  padding: 3.5rem; }
  .form__input-btn {
    display: block;
    width: 90%;
    margin: 0 auto;
    margin-top: 1.5rem; }
  .form__input-group {
    display: block;
    width: 90%;
    margin: 0 auto;
    margin-bottom: 1.5rem; }
  .form__input {
    border-radius: 3px;
    border: 1px solid #eee;
    width: 100%;
    font-size: 1.5rem;
    font-weight: 300;
    padding: 1rem;
    outline: none;
    transition: all .3s; }
    .form__input:focus {
      box-shadow: inset 0rem 0.3rem 1rem #777; }
  .form__label {
    font-size: 1.5rem;
    display: block; }
  .form__area {
    display: block;
    resize: none;
    height: 35vh;
    padding: 1rem;
    border-radius: 3px;
    width: 90%;
    margin: 0 auto;
    font-family: 'Lato',sans-serif;
    font-size: 1.5rem;
    outline: none; }
    .form__area:focus {
      box-shadow: inset 0rem 0.3rem 1rem #777; }

.btn {
  border-radius: 3px;
  background-color: #00204A;
  border: none;
  display: block;
  width: 100%;
  font-size: 2rem;
  padding: 2rem;
  color: #fff; }

.impressum__title-box {
  margin-left: 7rem;
  margin-bottom: 7rem; }

.impressum__ustid {
  margin: 1rem 0; }

.impressum__mail {
  color: #fff; }

.impressum__title {
  font-size: 2.2rem; }

.row {
  max-width: 170rem;
  margin: 0 auto; }
  .row:not(:last-child) {
    margin-bottom: 8rem; }
  .row::after {
    content: "";
    display: table;
    clear: both; }
  .row [class^="col-"] {
    float: left; }
    .row [class^="col-"]:not(:last-child) {
      margin-right: 6rem; }
  .row .col-1-of-2 {
    width: calc((100% - 6rem)/2); }
  .row .col-1-of-3 {
    width: calc((100% - 6rem*2)/3); }
  .row .col-2-of-3 {
    width: calc(((100% - 6rem*2)/3) * 2 + 6rem); }
  .row .col-1-of-4 {
    width: calc((100% - 6rem*3)/4); }
  .row .col-2-of-4 {
    width: calc(((100% - 6rem*3)/4) * 2 + 6rem); }
  .row .col-3-of-4 {
    width: calc(((100% - 6rem*3)/4) * 3 + 6rem * 2); }

.header {
  position: relative;
  background-image: linear-gradient(to right bottom, rgba(0, 32, 74, 0.8), rgba(0, 187, 240, 0.2)), url(../img/nat-1.jpg);
  background-size: cover;
  z-index: 1;
  height: 90vh;
  width: 100%;
  clip-path: polygon(0px 0px, 100% 0px, 100% 75%, 0px 100%); }
  .header__title-box {
    transform: translate(-50%, -50%);
    position: absolute;
    top: 50%;
    left: 50%;
    text-align: center; }

.footer {
  background-color: #333;
  color: #fff;
  padding: 2rem;
  position: relative; }
  .footer .copyrights {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    font-size: 1.2rem; }
  .footer_linklist {
    list-style: none; }
  .footer_link {
    display: inline-block;
    transition: all .2s; }
    .footer_link:not(:last-child) {
      margin-right: 1.5rem; }
    .footer_link a {
      font-size: 1.6rem;
      color: inherit;
      text-decoration: none; }
    .footer_link:hover, .footer_link:focus {
      transform: scale(1.2) rotate(5deg); }
    .footer_link:active {
      transform: scale(0.9); }

.services {
  display: flex;
  align-content: center;
  justify-content: space-evenly; }

.section-technologies {
  background-color: #f7f7f7;
  padding: 20rem 0;
  margin-top: -25vh;
  clip-path: polygon(0px 0px, 100% 0px, 100% 100%, 0px 90%); }

.section-courses {
  background-image: linear-gradient(to right bottom, #324A6B, #B3D6E3);
  background-color: #777;
  color: #fff;
  padding: 20rem 0 7.5rem 0;
  margin-top: -25vh; }

.section-contact {
  background-color: #f7f7f7;
  padding: 5rem 0; }

.section-impressum-datenschutz {
  background-image: linear-gradient(to right bottom, #324A6B, #B3D6E3);
  background-color: #777;
  color: #fff;
  padding: 3rem 0 7.5rem 0; }