style.css

/*  0*600 = phone
    600*900 = tablet portrait
    900*1200 = tablet landscape
    1200*1800 = desktop 
    1800*above = big desktop

    $breakpoint arguments choices
    - phone
    - tab-port
    - tab-land
    - big-desktop
*/
/*
COLORS:

Light green: #7ed56f
Medium green: #55c57a
Dark green: #28b485

*/
.section-about {
  background-color: #f7f7f7;
  padding: 25rem 0;
  margin-top: -20vh; }
  @media (max-width: 56.25em) {
    .section-about {
      padding: 20rem 0;
      margin-top: -13vh; } }

.section-features {
  padding: 20rem 0;
  background-image: linear-gradient(to right bottom, #7ed56ff3, #28b485eb), url(../img/nat-4.jpg);
  transform: skewY(-7deg);
  margin-top: -10rem; }
  .section-features > * {
    transform: skewY(7deg); }
  @media (max-width: 56.25em) {
    .section-features {
      padding: 10rem 0;
      margin-top: -8vh; } }

.section-tours {
  background-color: #f7f7f7;
  padding: 25rem 0 15rem 0;
  margin-top: -20vh; }
  @media (max-width: 56.25em) {
    .section-tours {
      padding: 20rem 0 10rem 0;
      margin-top: -13vh; } }

.section-stories {
  position: relative;
  padding: 15rem 0 15rem 0; }
  @media (max-width: 56.25em) {
    .section-stories {
      padding: 15rem 0 15rem 0; } }

.section-booking {
  padding: 15rem 0;
  background-image: linear-gradient(to right bottom, #7ed56ff3, #28b485eb); }
  @media (max-width: 56.25em) {
    .section-booking {
      padding: 10rem 0; } }

.book {
  background-image: linear-gradient(105deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.9) 50%, transparent 50%), url("../../img/nat-10.jpg");
  background-size: 100%;
  border-radius: 3px;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15); }
  @media (max-width: 75em) {
    .book {
      background-image: linear-gradient(105deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.9) 65%, transparent 50%), url("../../img/nat-10.jpg");
      background-size: cover; } }
  @media (max-width: 56.25em) {
    .book {
      background-image: linear-gradient(to right, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.9) 100%), url("../../img/nat-10.jpg"); } }
  .book__form {
    width: 50%;
    padding: 6rem; }
    @media (max-width: 75em) {
      .book__form {
        width: 65%; } }
    @media (max-width: 56.25em) {
      .book__form {
        width: 100%; } }

.btn, .btn:link, .btn:visited {
  text-decoration: none;
  text-transform: uppercase;
  padding: 1.5rem 4rem;
  display: inline-block;
  border-radius: 10rem;
  transition: all 0.2s;
  position: relative;
  font-size: 1.6rem;
  border: none;
  cursor: pointer; }
  .btn:hover, .btn:link:hover, .btn:visited:hover {
    transform: translateY(-0.3);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2); }
    .btn:hover::after, .btn:link:hover::after, .btn:visited:hover::after {
      transform: scaleX(1.4) scaleY(1.6);
      opacity: 0; }
  .btn:active, .btn:focus, .btn:link:active, .btn:link:focus, .btn:visited:active, .btn:visited:focus {
    outline: none;
    transform: translate(-0.1rem);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.2); }
  .btn::after, .btn:link::after, .btn:visited::after {
    content: '';
    display: inline-block;
    height: 100%;
    width: 100%;
    border-radius: 10rem;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    transition: all 0.4s; }
  .btn--animated, .btn:link--animated, .btn:visited--animated {
    animation-name: moveInButton;
    animation-duration: 1s; }

.btn--white {
  background-color: #ffff;
  color: #7777; }
  .btn--white::after {
    background-color: #ffff; }

.btn--green {
  background-color: #7ed56ff3;
  color: #ffff; }
  .btn--green::after {
    background-color: #ffff; }

.btn-text:link, .btn-text:visited {
  color: #7ed56ff3;
  display: inline-block;
  text-decoration: none;
  border-bottom: 1px solid #7ed56ff3;
  padding: .3rem;
  font-size: 1.6rem;
  transition: all 0.2s; }

.btn-text:hover {
  background-color: #7ed56ff3;
  color: #ffff;
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2);
  transform: translateY(-2px); }

.btn-text:active {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.2);
  transform: translate(0); }

.card {
  perspective: 150rem;
  position: relative;
  height: 52rem; }
  .card__side {
    height: 52rem;
    transition: all 1s ease;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    backface-visibility: hidden;
    overflow: hidden;
    border-radius: 3px;
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15); }
    .card__side--front {
      background-color: #ffff; }
    .card__side--back {
      transform: rotateY(180deg); }
      .card__side--back-1 {
        background-image: linear-gradient(to right, #ffb900, #ff7730); }
      .card__side--back-2 {
        background-image: linear-gradient(to right, #7ed56ff3, #28b485eb); }
      .card__side--back-3 {
        background-image: linear-gradient(to right, #2998ff, #5643fa); }
  .card:hover .card__side--front {
    transform: rotateY(-180deg); }
  .card:hover .card__side--back {
    transform: rotateY(0deg); }
  .card__picture {
    background-size: cover;
    height: 23rem;
    background-blend-mode: screen;
    -webkit-clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%); }
    .card__picture--1 {
      background-image: linear-gradient(to right, #ffb900, #ff7730), url(../../img/nat-5-small.jpg); }
      @media (min-resolution: 192dpi) and (min-width: 37.5em) {
        .card__picture--1 {
          background-image: linear-gradient(to right bottom, rgba(255, 185, 0, 0.8), rgba(255, 119, 48, 0.8)), url(../img/nat-5.jpg); } }
    .card__picture--2 {
      background-image: linear-gradient(to right, #7ed56ff3, #28b485eb), url(../../img/nat-6-small.jpg); }
      @media (min-resolution: 192dpi) and (min-width: 37.5em) {
        .card__picture--2 {
          background-image: linear-gradient(to right bottom, rgba(126, 213, 111, 0.8), rgba(40, 180, 133, 0.8)), url(../img/nat-6.jpg); } }
    .card__picture--3 {
      background-image: linear-gradient(to right, #2998ff, #5643fa), url(../../img/nat-7-small.jpg); }
      @media (min-resolution: 192dpi) and (min-width: 37.5em) {
        .card__picture--3 {
          background-image: linear-gradient(to right bottom, rgba(41, 152, 255, 0.8), rgba(86, 67, 250, 0.8)), url(../img/nat-7.jpg); } }
  .card__heading {
    font-size: 2.8rem;
    font-weight: 300;
    color: #ffff;
    text-transform: uppercase;
    text-align: right;
    position: absolute;
    top: 12rem;
    right: 2rem;
    width: 75%; }
  .card__heading-span {
    padding: 1rem 1.5rem;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone; }
    .card__heading-span--1 {
      background-image: linear-gradient(to right bottom, rgba(255, 185, 0, 0.85), rgba(255, 119, 48, 0.85)); }
    .card__heading-span--2 {
      background-image: linear-gradient(to right bottom, rgba(126, 213, 111, 0.85), rgba(40, 180, 133, 0.85)); }
    .card__heading-span--3 {
      background-image: linear-gradient(to right bottom, rgba(41, 152, 255, 0.85), rgba(86, 67, 250, 0.85)); }
  .card__details {
    padding: 3rem; }
    .card__details ul {
      list-style: none;
      width: 80%;
      margin: 0 auto; }
      .card__details ul li {
        text-align: center;
        font-size: 1.5rem;
        padding: 1rem; }
        .card__details ul li:not(:last-child) {
          border-bottom: 1px solid #eee; }
  .card__cta {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    text-align: center; }
  .card__price-box {
    text-align: center;
    margin-bottom: 8rem;
    color: #ffff; }
  .card__price-only {
    font-size: 1.4rem;
    text-transform: uppercase; }
  .card__price-value {
    font-size: 6rem;
    font-weight: 100; }
  @media (max-width: 56.25em) {
    .card {
      height: auto;
      border-radius: 3px;
      box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
      background-color: #ffff; }
      .card__side {
        height: auto;
        position: relative;
        box-shadow: none; }
        .card__side--back {
          margin-top: -3vh;
          transform: rotateY(0);
          clip-path: polygon(0 15%, 100% 0, 100% 100%, 0 100%); }
      .card:hover .card__side--front {
        transform: rotateY(0); }
      .card__cta {
        position: relative;
        top: 0;
        left: 0;
        transform: translate(0);
        width: 100%;
        padding: 7rem 4rem 4rem 4rem; }
      .card__price-box {
        margin-bottom: 3rem; }
      .card__price-only {
        font-size: 1.4rem; }
      .card__price-value {
        font-size: 6rem; } }

.composition {
  position: relative; }
  .composition__photo {
    width: 55%;
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.4);
    border-radius: 2px;
    position: absolute;
    z-index: 10;
    transition: all .2s;
    outline-offset: 2rem; }
    @media (max-width: 56.25em) {
      .composition__photo {
        float: left;
        position: relative;
        width: 33.33%;
        box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.2); } }
    .composition__photo--p1 {
      left: 0;
      top: -2rem; }
      @media (max-width: 56.25em) {
        .composition__photo--p1 {
          top: 0;
          transform: scale(1.2); } }
    .composition__photo--p2 {
      right: 0;
      top: 2rem; }
      @media (max-width: 56.25em) {
        .composition__photo--p2 {
          top: -1rem;
          transform: scale(1.3);
          z-index: 100; } }
    .composition__photo--p3 {
      left: 20%;
      top: 10rem; }
      @media (max-width: 56.25em) {
        .composition__photo--p3 {
          top: 1rem;
          left: 0;
          transform: scale(1.1); } }
    .composition__photo:hover {
      outline: 1.5rem solid #7ed56ff3;
      transform: scale(1.05) translateY(-0.5rem);
      box-shadow: 0 2.5rem 4rem rgba(0, 0, 0, 0.5);
      z-index: 20; }
  .composition:hover .composition__photo:not(:hover) {
    transform: scale(0.95); }

.feature-box {
  background-color: rgba(255, 255, 255, 0.8);
  font-size: 1.5rem;
  padding: 2.5rem;
  text-align: center;
  border-radius: 3px;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
  transition: transform .2s; }
  @media (max-width: 56.25em) {
    .feature-box {
      padding: 2rem; } }
  .feature-box__icon {
    font-size: 6rem;
    margin-bottom: 0.5rem;
    display: inline-block;
    background-image: linear-gradient(to right, #7ed56ff3, #28b485eb);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent; }
    @media (max-width: 56.25em) {
      .feature-box__icon {
        margin-bottom: 0; } }
  .feature-box:hover {
    transform: translateY(-1.5rem) scale(1.03); }

.story {
  width: 75%;
  margin: 0 auto;
  box-shadow: 0 3rem 6rem rgba(0, 0, 0, 0.1);
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  padding: 6rem;
  padding-left: 9rem;
  font-size: 1.6rem;
  transform: skewX(-12deg); }
  @media (max-width: 56.25em) {
    .story {
      width: 100%;
      padding: 4rem;
      padding-left: 7rem; } }
  @media (max-width: 37.5em) {
    .story {
      transform: skewX(0); } }
  .story__shape {
    width: 15rem;
    height: 15rem;
    float: left;
    shape-outside: circle(50% at 50% 50%);
    clip-path: circle(50% at 50% 50%);
    transform: translateX(-3rem) skewX(12deg);
    position: relative; }
    @media (max-width: 37.5em) {
      .story__shape {
        transform: translateX(-3rem) skewX(0); } }
  .story__image {
    height: 100%;
    transform: translate(-4rem) scale(1.2);
    transition: all .5s; }
  .story__text {
    transform: skewX(12deg); }
    @media (max-width: 37.5em) {
      .story__text {
        transform: skewX(0); } }
  .story__caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, 20%);
    color: #ffff;
    text-transform: uppercase;
    text-align: center;
    opacity: 0;
    transition: all .5s;
    backface-visibility: hidden; }
  .story:hover .story__caption {
    opacity: 1;
    transform: translate(-50%, -50%); }
  .story:hover .story__image {
    transform: translate(-4rem) scale(1);
    filter: blur(3px) brightness(80%); }

.bg-video {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  z-index: -1;
  opacity: 0.15;
  overflow: hidden; }
  .bg-video__content {
    height: 100%;
    width: 100%;
    object-fit: cover; }

.form__group:not(:last-child) {
  margin-bottom: 2rem; }

.form__input {
  font-size: 1.5rem;
  font-family: inherit;
  color: inherit;
  padding: 1.5rem 2rem;
  border-radius: 2px;
  background-color: rgba(255, 255, 255, 0.5);
  border: none;
  border-bottom: 3px solid transparent;
  width: 90%;
  display: block;
  transition: all 0.2s; }
  @media (max-width: 56.25em) {
    .form__input {
      width: 100%;
      margin-bottom: 2rem; } }
  .form__input:focus {
    outline: none;
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.1);
    border-bottom: 3px solid #7ed56ff3; }
  .form__input:focus:invalid {
    border-bottom: 3px solid #ffb900; }
  .form__input::-webkit-input-placeholder {
    color: #999; }

.form__label {
  font-size: 1.2rem;
  font-weight: 700;
  margin-left: 2rem;
  display: block;
  transition: all 0.2s; }

.form__input:placeholder-shown + .form__label {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4rem); }

.form__radio-input {
  visibility: hidden; }

.form__radio-groups {
  width: 49%;
  display: inline-block; }
  @media (max-width: 56.25em) {
    .form__radio-groups {
      width: 100%;
      margin-bottom: 2rem; } }

.form__radio-label {
  font-size: 1.6rem;
  cursor: pointer;
  position: relative;
  padding-left: 5rem; }

.form__radio-button {
  height: 2.8rem;
  width: 2.8rem;
  border: 5px solid #7ed56ff3;
  border-radius: 50%;
  display: inline-block;
  position: absolute;
  left: 0;
  top: -.4rem; }
  .form__radio-button::after {
    content: '';
    display: block;
    height: 1.2rem;
    width: 1.2rem;
    border-radius: 50%;
    position: absolute;
    top: -13%;
    left: 50%;
    transform: translate(-50%, 50%);
    background-color: #7ed56ff3;
    opacity: 0;
    transition: opacity 0.2s; }

.form__radio-input:checked ~ .form__radio-label .form__radio-button:after {
  opacity: 1; }

/* CSS style by class, id */
.header {
  height: 95vh;
  background-image: linear-gradient(to right bottom, #7ed56ff3, #28b485eb), url(../img/hero-small.jpg);
  background-size: cover;
  background-position: top;
  position: relative;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 75vh, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% 75vh, 0 100%); }
  @media (min-resolution: 192dpi) and (min-width: 37.5em), (min-width: 125em) {
    .header {
      background-image: linear-gradient(to right bottom, rgba(126, 213, 111, 0.8), rgba(40, 180, 133, 0.8)), url(../img/hero.jpg); } }
  @media (max-width: 37.5em) {
    .header {
      -webkit-clip-path: polygon(0 0, 100% 0, 100% 85vh, 0 100%);
      clip-path: polygon(0 0, 100% 0, 100% 85vh, 0 100%); } }
  .header__logo-box {
    position: absolute;
    top: 4rem;
    left: 4rem; }
  .header__logo {
    height: 3.5rem; }
  .header__text-box {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center; }

.heading-primary {
  color: #ffff;
  text-transform: uppercase;
  margin-bottom: 6rem;
  backface-visibility: hidden; }
  .heading-primary--main {
    display: block;
    font-size: 6rem;
    font-weight: 400;
    letter-spacing: 3.5rem;
    animation-name: moveInLeft;
    animation-duration: 1s;
    /* animation-delay: 1s; 
        animation-iteration-count: 3;
        animation-timing-function: ease-out;
        */ }
    @media (max-width: 37.5em) {
      .heading-primary--main {
        font-size: 5rem;
        letter-spacing: 1rem; } }
  .heading-primary--sub {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1.75rem;
    animation-name: moveInRight;
    animation-duration: 1s; }
    @media (max-width: 37.5em) {
      .heading-primary--sub {
        letter-spacing: 0.5rem; } }

.row {
  max-width: 114rem;
  margin: 0 auto; }
  @media (max-width: 56.25em) {
    .row {
      max-width: 50rem;
      padding: 0 3rem; } }
  .row:not(:last-child) {
    margin-bottom: 8rem; }
    @media (max-width: 56.25em) {
      .row:not(:last-child) {
        margin-bottom: 6rem; } }
  .row::after {
    content: '';
    display: table;
    clear: both; }
  .row [class^="col-"] {
    float: left; }
    .row [class^="col-"]:not(:last-child) {
      margin-right: 6rem; }
      @media (max-width: 56.25em) {
        .row [class^="col-"]:not(:last-child) {
          margin-right: 0;
          margin-bottom: 6rem; } }
    @media (max-width: 56.25em) {
      .row [class^="col-"] {
        width: 100% !important; } }
  .row .col-1-of-2 {
    width: calc((100% - 6rem)/2); }
  .row .col-1-of-3 {
    width: calc((100% - 2 *  6rem)/3); }
  .row .col-1-of-4 {
    width: calc((100% - 3 *  6rem)/4); }
  .row .col-2-of-3 {
    width: calc(2 * ((100% - 2 *  6rem)/3) + 6rem); }
  .row .col-2-of-4 {
    width: calc(2 * ((100% - 3 *  6rem)/4) + 6rem); }
  .row .col-3-of-4 {
    width: calc(3 * ((100% - 3 *  6rem)/4) + 2 * 6rem); }

.footer {
  background-color: #333;
  padding: 10rem 0;
  font-size: 1.4rem;
  color: #f7f7f7; }
  @media (max-width: 56.25em) {
    .footer {
      padding: 8rem 0; } }
  .footer__logo-box {
    text-align: center;
    margin-bottom: 8rem; }
    @media (max-width: 56.25em) {
      .footer__logo-box {
        margin-bottom: 6rem; } }
  .footer__logo {
    width: 15rem;
    height: auto; }
  .footer__navigation {
    border-top: 1px solid #999;
    padding: 2rem;
    display: inline-block; }
    @media (max-width: 56.25em) {
      .footer__navigation {
        width: 100%;
        text-align: center; } }
  .footer__list {
    list-style: none; }
  .footer__item {
    display: inline-block; }
    .footer__item:not(:last-child) {
      margin-right: 1.5rem; }
  .footer__link:link, .footer__link:visited {
    color: #f7f7f7;
    background-color: #333;
    text-decoration: none;
    text-transform: uppercase;
    display: inline-block;
    transition: all .2s; }
  .footer__link:hover, .footer__link:active {
    color: #7ed56ff3;
    transform: rotate(5deg) scale(1.3); }
  .footer__copyright {
    border-top: 1px solid #999;
    padding: 2rem;
    width: 80%;
    float: right; }
    @media (max-width: 56.25em) {
      .footer__copyright {
        width: 100%;
        float: none; } }

.navigation__checkbox {
  display: none; }

.navigation__button {
  background-color: #ffff;
  height: 7rem;
  width: 7rem;
  position: fixed;
  top: 6rem;
  right: 6rem;
  border-radius: 50%;
  z-index: 100;
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.15);
  text-align: center;
  cursor: pointer; }
  @media (max-width: 56.25em) {
    .navigation__button {
      top: 4rem;
      right: 4rem; } }
  @media (max-width: 37.5em) {
    .navigation__button {
      top: 3.5rem;
      right: 3.5rem; } }

.navigation__background {
  height: 6rem;
  width: 6rem;
  border-radius: 50%;
  position: fixed;
  top: 6.5rem;
  right: 6.5rem;
  -webkit-background-image: radial-gradient(#7ed56ff3, #28b485eb);
  background-image: radial-gradient(#7ed56ff3, #28b485eb);
  z-index: 10;
  transition: transform 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55); }
  @media (max-width: 56.25em) {
    .navigation__background {
      top: 4.5rem;
      right: 4.5rem; } }
  @media (max-width: 37.5em) {
    .navigation__background {
      top: 3.5rem;
      right: 3.5rem; } }

.navigation__nav {
  height: 100vh;
  position: fixed;
  top: 0;
  right: 0;
  z-index: 50;
  opacity: 0;
  width: 0;
  transition: all 0.8s; }

.navigation__list {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  list-style: none;
  text-align: center;
  width: 100%; }

.navigation__item {
  margin: 3rem; }

.navigation__link:link, .navigation__link:visited {
  display: inline-block;
  font-size: 3rem;
  font-weight: 300;
  padding: 1rem 2rem;
  color: #ffff;
  text-decoration: none;
  text-transform: uppercase;
  background-image: linear-gradient(120deg, transparent 0%, transparent 50%, #ffff 50%);
  background-size: 230%;
  transition: all 0.4s; }

.navigation__link:hover, .navigation__link:active {
  background-position: 100%;
  color: #28b485eb;
  transform: translateX(1rem); }

.navigation__checkbox:checked ~ .navigation__background {
  transform: scale(80); }

.navigation__checkbox:checked ~ .navigation__nav {
  opacity: 1;
  width: 100%; }

.navigation__icon {
  position: relative;
  margin-top: 3.5rem; }
  .navigation__icon, .navigation__icon::before, .navigation__icon::after {
    width: 3rem;
    height: 2px;
    background-color: #333;
    display: inline-block; }
  .navigation__icon::before, .navigation__icon::after {
    content: '';
    position: absolute;
    left: 0;
    transition: all 0.5s; }
  .navigation__icon::before {
    top: -0.8rem; }
  .navigation__icon::after {
    top: 0.8rem; }

.navigation__button:hover .navigation__icon::before {
  top: -1rem; }

.navigation__button:hover .navigation__icon::after {
  top: 1rem; }

.navigation__checkbox:checked + .navigation__button .navigation__icon {
  background-color: transparent; }

.navigation__checkbox:checked + .navigation__button .navigation__icon::before {
  top: 0;
  transform: rotate(135deg); }

.navigation__checkbox:checked + .navigation__button .navigation__icon::after {
  top: 0;
  transform: rotate(-135deg); }

.popup {
  height: 100vh;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.3);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
  backdrop-filter: blur(100px); }
  @media (max-width: 56.25em) {
    .popup {
      position: relative;
      height: 100vh;
      width: 100%;
      background-color: rgba(0, 0, 0, 0.3);
      position: fixed;
      top: 0;
      left: 0;
      z-index: 150;
      opacity: 0;
      visibility: hidden;
      transition: all 0.2s;
      backdrop-filter: blur(100px); } }
  .popup__content {
    height: 50%;
    width: 80%;
    background-color: #ffff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.25);
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.2);
    border-radius: 3px;
    display: table;
    overflow: hidden;
    opacity: 0;
    transition: all .4s .2s; }
    @media (max-width: 56.25em) {
      .popup__content {
        height: 90%;
        width: 50%; } }
  .popup__left {
    width: 33.33%;
    display: table-cell; }
    @media (max-width: 75em) {
      .popup__left {
        width: 50%; } }
  .popup__right {
    width: 66.67%;
    display: table-cell;
    vertical-align: middle;
    padding: 3rem 5rem; }
    @media (max-width: 56.25em) {
      .popup__right {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%); } }
  .popup__img {
    display: block;
    width: 100%; }
    @media (max-width: 56.25em) {
      .popup__img {
        display: none; } }
  .popup__text {
    font-size: 1.4rem;
    margin-bottom: 4rem;
    column-count: 2;
    column-gap: 4rem;
    column-rule: 1px solid #7ed56ff3;
    hyphens: auto; }
    @media (max-width: 75em) {
      .popup__text {
        column-count: 1; } }
  .popup:target {
    opacity: 1;
    visibility: visible; }
  .popup:target .popup__content {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1); }
  .popup__close:link, .popup__close:visited {
    color: #333;
    position: absolute;
    top: 2.5rem;
    right: 2.5rem;
    font-size: 3rem;
    text-decoration: none;
    display: inline-block;
    line-height: 1; }
    .popup__close:link:hover, .popup__close:visited:hover {
      color: #7ed56ff3; }

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

/* set font size in percentage of bowser font size */
/* this is very useful for responsive web page */
/* use 1rem = 10px for each property,
 this will make our page responsive with default bowser font size. */
html {
  font-size: 62.5%; }
  @media (max-width: 75em) {
    html {
      font-size: 56.25%; } }
  @media (max-width: 56.25em) {
    html {
      font-size: 50%; } }
  @media (min-width: 112.5em) {
    html {
      font-size: 75%; } }

/* following properties inherited by child elements of a body */
body {
  font-family: "Lato", sans-serif;
  font-weight: 400;
  line-height: 1.7;
  color: black;
  padding: 3rem;
  box-sizing: border-box; }
  @media (max-width: 56.25em) {
    body {
      padding: 0; } }

@keyframes moveInLeft {
  0% {
    opacity: 0;
    transform: translateX(-10rem); }
  80% {
    transform: translateX(1rem); }
  100% {
    opacity: 1;
    transform: translateX(0); } }

@keyframes moveInRight {
  0% {
    opacity: 0;
    transform: translate(10rem); }
  80% {
    transform: translateX(-1rem); }
  100% {
    opacity: 1;
    transform: translate(0); } }

@keyframes moveInButton {
  0% {
    opacity: 0;
    transform: translateY(10rem); }
  100% {
    opacity: 1;
    transform: translateY(0); } }

.heading-secondary {
  font-size: 3.5rem;
  text-transform: uppercase;
  font-weight: 700;
  display: inline-block;
  background-image: linear-gradient(to right, #7ed56ff3, #28b485eb);
  -webkit-background-clip: text;
  color: transparent;
  letter-spacing: 2px;
  transition: all .2s; }
  @media (max-width: 56.25em) {
    .heading-secondary {
      font-size: 3rem; } }
  @media (max-width: 37.5em) {
    .heading-secondary {
      font-size: 2.5rem; } }
  .heading-secondary:hover {
    transform: skewY(2deg) skewX(15deg) scale(1.1);
    text-shadow: 0.5rem 1rem 2rem rgba(0, 0, 0, 0.2); }

.heading-tertiary {
  font-size: 1.6rem;
  font-weight: 600;
  text-transform: uppercase; }

.paragraph {
  font-size: 1.6rem; }
  .paragraph:not(:last-child) {
    margin-bottom: 3rem; }

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

.u-margin-bottom-8 {
  margin-bottom: 8rem !important; }
  @media (max-width: 56.25em) {
    .u-margin-bottom-8 {
      margin-bottom: 5rem; } }

.u-margin-bottom-2 {
  margin-bottom: 2rem !important; }

.u-margin-top-8 {
  margin-top: 10rem !important; }
  @media (max-width: 56.25em) {
    .u-margin-top-8 {
      margin-bottom: 7rem; } }