style.css

:root {
  --primary:       #ff52bf;
  --primary-light: #ff8fd8;
  --light-red:     #ff4242;
  --cyan:          #00252e;
  --blue:          #f5faff;
}

* {
  padding: 0;
  margin: 0;
  -webkit-box-sizing: 0;
          box-sizing: 0;
}

html {
  font-size: 62.5% !important;
}

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

h1, h2, h3, h4, h5 {
  font-family: 'Poppins', sans-serif;
  color: var(--cyan);
}

a {
  text-decoration: none;
  -webkit-transition: all .3s ease-in-out;
  transition: all .3s ease-in-out;
}

a:hover {
  -webkit-box-shadow: 0px 3px 5px -1px rgba(0, 0, 0, 0.41);
          box-shadow: 0px 3px 5px -1px rgba(0, 0, 0, 0.41);
  -webkit-transform: scale(1.1);
          transform: scale(1.1);
}

@media screen and (max-width: 900px) {
  a {
    -webkit-transform: none !important;
            transform: none !important;
  }
}

.bg {
  width: 100%;
}

nav {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 7rem;
}

@media screen and (max-width: 900px) {
  nav {
    padding: 2rem !important;
  }
  nav img {
    width: 15rem !important;
  }
  nav a {
    font-size: 1.5rem !important;
  }
}

nav img {
  width: 25rem;
}

nav a {
  font-size: 2rem;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: .5rem 3rem;
  border-radius: 5rem;
}

.header {
  text-align: center;
  margin-top: 10rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

@media screen and (max-width: 900px) {
  .header {
    padding: 7rem 1rem;
  }
  .header h1 {
    font-size: 3rem !important;
  }
  .header p {
    width: 100%  !important;
    font-size: 1.8rem !important;
  }
  .header a {
    font-size: 1.5rem !important;
    padding: 2rem 7rem !important;
  }
}

.header h1 {
  color: var(--cyan);
  font-size: 5rem;
  font-weight: bold;
}

.header p {
  color: var(--cyan);
  font-size: 2.2rem;
  width: 48%;
  margin: 3rem auto;
}

.header a {
  font-size: 1.8rem;
  background-color: var(--primary);
  color: white;
  padding: 2.5rem 8rem;
  border-radius: 5rem;
  font-weight: bold;
}

.preview {
  margin-top: 10rem;
  text-align: center;
}

@media screen and (max-width: 900px) {
  .preview {
    padding: 1.5rem;
  }
  .preview .mockup {
    width: 100%;
  }
  .preview .users {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
  .preview .users .child {
    margin-top: 5rem;
  }
  .preview .users .child h3 {
    font-size: 5rem !important;
  }
  .preview .users .child p {
    font-size: 1.3rem !important;
  }
}

.preview .users {
  margin-top: 5rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -ms-flex-pack: distribute;
      justify-content: space-around;
}

.preview .users .child h3 {
  font-size: 10rem;
}

.preview .users .child p {
  font-size: 2.3rem;
  color: gray;
}

.grow .content {
  background-color: #f6fbff;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 0 10rem;
  margin-top: -2rem;
}

@media screen and (max-width: 900px) {
  .grow .content {
    padding: 2rem 1.5rem !important;
    -webkit-box-orient: vertical !important;
    -webkit-box-direction: reverse !important;
        -ms-flex-direction: column-reverse !important;
            flex-direction: column-reverse !important;
  }
  .grow .content .description {
    width: 100% !important;
    text-align: center;
  }
  .grow .content .description h3 {
    margin-top: 4rem;
    font-size: 2rem !important;
  }
  .grow .content .description p {
    font-size: 1.4rem !important;
    width: 100% !important;
  }
}

.grow .content .description {
  width: 50%;
}

.grow .content .description h3 {
  font-size: 4rem;
  margin-bottom: 2rem;
}

.grow .content .description p {
  font-size: 1.7rem;
  color: var(--cyan);
  width: 90%;
  font-weight: bold;
  opacity: .8;
}

.grow .content img {
  width: 50%;
}

.flow {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 0 10rem;
}

@media screen and (max-width: 900px) {
  .flow {
    padding: 1.5rem !important;
    -webkit-box-orient: vertical !important;
    -webkit-box-direction: normal !important;
        -ms-flex-direction: column !important;
            flex-direction: column !important;
  }
}

.flow .description {
  margin-left: 10rem;
}

@media screen and (max-width: 900px) {
  .flow .description {
    width: 100% !important;
    text-align: center;
    margin-left: 0 !important;
  }
  .flow .description h3 {
    margin-top: 4rem;
    font-size: 2rem !important;
  }
  .flow .description p {
    font-size: 1.4rem !important;
    width: 100% !important;
  }
}

.flow .description h3 {
  font-size: 4rem;
  margin-bottom: 2rem;
}

.flow .description p {
  font-size: 1.7rem;
  color: var(--cyan);
  width: 90%;
  font-weight: bold;
  opacity: .8;
}

.flow img {
  width: 50%;
}

.users .content {
  background-color: #f6fbff;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 2rem 10rem;
  margin-top: -2rem;
}

@media screen and (max-width: 900px) {
  .users .content {
    padding: 1.5rem !important;
    -webkit-box-orient: vertical !important;
    -webkit-box-direction: reverse !important;
        -ms-flex-direction: column-reverse !important;
            flex-direction: column-reverse !important;
    margin-top: -1rem !important;
  }
  .users .content .description {
    width: 100% !important;
    text-align: center;
    margin-left: 0 !important;
  }
  .users .content .description h3 {
    margin-top: 4rem;
    font-size: 2rem !important;
  }
  .users .content .description p {
    font-size: 1.4rem !important;
    width: 100% !important;
  }
}

.users .content .description {
  width: 50%;
}

.users .content .description h3 {
  font-size: 4rem;
  margin-bottom: 2rem;
}

.users .content .description p {
  font-size: 1.7rem;
  color: var(--cyan);
  width: 90%;
  font-weight: bold;
  opacity: .8;
}

.users .content img {
  width: 50%;
}

.build {
  text-align: center;
  height: 80vh;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}

@media screen and (max-width: 900px) {
  .build {
    padding: 1.5rem !important;
  }
  .build .content h3 {
    font-size: 3rem !important;
  }
  .build .content a {
    font-size: 1.5rem !important;
    padding: 2rem 7rem !important;
  }
}

.build .content h3 {
  font-size: 5rem;
  margin-bottom: 5rem;
}

.build .content a {
  font-size: 1.8rem;
  background-color: var(--primary);
  color: white;
  padding: 2.5rem 8rem;
  border-radius: 5rem;
  font-weight: bold;
}

footer {
  color: white !important;
}

footer .content {
  margin: 0 auto;
  background-color: #00252e;
  margin-top: -1rem;
  padding: 10rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
}

@media screen and (max-width: 900px) {
  footer .content {
    padding: 1.5rem !important;
    margin-top: -5px !important;
    -webkit-box-orient: vertical;
    -webkit-box-direction: reverse;
        -ms-flex-direction: column-reverse;
            flex-direction: column-reverse;
    text-align: start;
  }
  footer .content .left {
    margin: 1rem 0 !important;
  }
  footer .content .left p {
    font-size: 1.5rem;
    width: 100% !important;
  }
  footer .content .right {
    margin: 2rem 0 !important;
  }
  footer .content .right p {
    font-size: 1.5rem !important;
    width: 100% !important;
  }
  footer .content .right .form {
    text-align: center;
  }
  footer .content .right .form input {
    display: block !important;
    width: 100%;
    padding: 1rem 0 !important;
  }
  footer .content .right .form a {
    margin: 1rem 0;
    display: block !important;
  }
}

footer .content .left p {
  width: 50%;
  font-size: 1.5rem;
  margin: 2rem 0;
  opacity: .8;
}

footer .content .left span {
  font-size: 1.5rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin: 1rem 0;
  opacity: .8;
}

footer .content .left span i {
  margin-right: 1rem;
}

footer .content .left .social {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-top: 10rem;
}

footer .content .left .social i {
  margin-right: 3.5rem;
}

footer .content .right h3 {
  color: white !important;
  font-size: 3rem;
}

footer .content .right p {
  font-size: 1.5rem;
  width: 60%;
  margin: 3rem 0;
  opacity: .8;
}

footer .content .right .form input {
  border: none;
  padding: 1rem;
  font-size: 2rem;
  border-radius: .5rem;
  margin-right: 4rem;
}

footer .content .right .form a {
  border-radius: .5rem;
  background-color: var(--primary);
  font-size: 1.7rem;
  padding: 1rem 3rem;
}

footer i, footer a {
  color: white !important;
}

.gg-twitter {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: relative;
  display: block;
  -webkit-transform: scale(var(--ggs, 1));
          transform: scale(var(--ggs, 1));
  width: 20px;
  height: 20px;
}

.gg-twitter::after,
.gg-twitter::before {
  content: "";
  display: block;
  position: absolute;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  left: 4px;
}

.gg-twitter::before {
  width: 9px;
  height: 14px;
  border-left: 4px solid;
  border-bottom: 4px solid;
  border-bottom-left-radius: 6px;
  background: linear-gradient(to left, currentColor 12px, transparent 0) no-repeat center 2px/10px 4px;
  top: 4px;
}

.gg-twitter::after {
  width: 4px;
  height: 4px;
  background: currentColor;
  border-radius: 20px;
  top: 2px;
  -webkit-box-shadow: 7px 4px 0,7px 12px 0;
          box-shadow: 7px 4px 0,7px 12px 0;
}

.gg-mail,
.gg-mail::after {
  display: block;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  height: 14px;
  border: 2px solid;
}

.gg-mail {
  overflow: hidden;
  -webkit-transform: scale(var(--ggs, 1));
          transform: scale(var(--ggs, 1));
  position: relative;
  width: 18px;
  border-radius: 2px;
}

.gg-mail::after {
  content: "";
  position: absolute;
  border-radius: 3px;
  width: 14px;
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
  bottom: 3px;
  left: 0;
}

.gg-facebook {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: relative;
  display: block;
  -webkit-transform: scale(var(--ggs, 1));
          transform: scale(var(--ggs, 1));
  width: 20px;
  height: 20px;
}

.gg-facebook::after,
.gg-facebook::before {
  content: "";
  display: block;
  position: absolute;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

.gg-facebook::before {
  width: 8px;
  height: 20px;
  border-left: 4px solid;
  border-top: 4px solid;
  border-top-left-radius: 5px;
  left: 6px;
}

.gg-facebook::after {
  width: 10px;
  height: 4px;
  background: currentColor;
  top: 7px;
  left: 4px;
  -webkit-transform: skew(-5deg);
          transform: skew(-5deg);
}

.gg-instagram {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: relative;
  display: block;
  -webkit-transform: scale(var(--ggs, 1));
          transform: scale(var(--ggs, 1));
  border: 2px solid transparent;
  -webkit-box-shadow: 0 0 0 2px;
          box-shadow: 0 0 0 2px;
  border-radius: 4px;
  width: 20px;
  height: 20px;
}

.gg-instagram::after,
.gg-instagram::before {
  content: "";
  display: block;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: absolute;
}

.gg-instagram::after {
  border: 2px solid;
  left: 3px;
  width: 10px;
  height: 10px;
  border-radius: 100%;
  top: 3px;
}

.gg-instagram::before {
  border-radius: 3px;
  width: 2px;
  height: 2px;
  background: currentColor;
  right: 1px;
  top: 1px;
}

.gg-phone {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  -webkit-transform: scale(var(--ggs, 1));
          transform: scale(var(--ggs, 1));
}

.gg-phone::after,
.gg-phone::before {
  content: "";
  display: block;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: absolute;
}

.gg-phone::after {
  width: 18px;
  height: 18px;
  border-top-left-radius: 1px;
  border-bottom-right-radius: 1px;
  border-bottom-left-radius: 12px;
  border-left: 4px solid;
  border-bottom: 4px solid;
  left: 2px;
  bottom: 2px;
  background: linear-gradient(to left, currentColor 10px, transparent 0) no-repeat right 11px/6px 4px, linear-gradient(to left, currentColor 10px, transparent 0) no-repeat -1px 0/4px 6px;
}

.gg-phone::before {
  width: 20px;
  height: 20px;
  border: 6px double;
  border-top-color: transparent;
  border-bottom-color: transparent;
  border-left-color: transparent;
  border-radius: 50%;
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
  bottom: 2px;
  left: 2px;
}

[data-entrance="scale-in-center"] {
  -webkit-transform: rotate(180deg);
          transform: rotate(180deg);
  opacity: 0;
}

[data-entrance="scale-in-center"].has-entered {
  -webkit-transform: rotate(0deg);
          transform: rotate(0deg);
  opacity: 1;
}

@-webkit-keyframes scale-in-center {
  0% {
    -webkit-transform: scale(0);
    transform: scale(0);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes scale-in-center {
  0% {
    -webkit-transform: scale(0);
    transform: scale(0);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
    opacity: 1;
  }
}