body {
  margin: 0;
  font-family: "Assistant", sans-serif;
  background-color: #2a2738;
  /*min-height: 600px;
*/
}

.header a {
  color: white;
}

h1 {
  font-weight: 400;
  color: white;
  margin-top: 0;
  margin-bottom: 10px;
}

h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 1%;
  margin-top: 0;
}

h3 {
  font-size: 32px;
}

h4 {
  margin-bottom: 0;
  margin-top: 0;
  font-weight: 300;
  color: white;
}

a {
  text-decoration: none;
  color: #4a4a4a;
}

.language a {
  color: rgba(255, 255, 255, 0.8);
}

#menu li a {
  color: white;
  font-weight: bold;
}

#menu li.active {
  border-bottom: 2px solid white;
}

ul,
li {
  text-decoration: none;
  list-style-type: none;
  color: white;
}

p {
  line-height: 1.3;
  letter-spacing: 0.2;
  color: white;
}

.scroll-down {
  /*Scroll down Arrow*/

  /*width: 20px;*/
  position: absolute;
  bottom: 30px;
  text-align: center;
  cursor: pointer;
  /*padding-left: 25%;*/

  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  pointer-events: auto;
}

/*Button*/
.rec_button {
  border: 2px solid white;
  display: inline-block;

  color: black;
  background-color: white;
  pointer-events: auto;
  -webkit-transition: background-color 0.5s ease-out;
  transition: background-color 0.5s ease-out;
  border-radius: 20px;
  text-align: center;
}

.rec_button:hover {
  color: black;
  border: 2px solid white;
  background-color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
}

.rec_button a:hover {
  color: black;
}

#bp:hover {
  background-color: #d6effa;
}

#cp:hover {
  background-color: #e9f5ed;
}

#pd:hover {
  background-color: #fef9d4;
}

#fi:hover {
  background-color: #fff2e8;
}

#bi:hover {
  background-color: #ffe9e7;
}

#ra:hover {
  background-color: #fff1f9;
}

.round-button {
  border: 1px solid white;
  display: inline-block;
  padding: 4% 12%;
  color: white;
  background-color: rgba(255, 255, 255, 0.6);
  -webkit-transition: background-color 0.5s ease-out;
  transition: background-color 0.5s ease-out;
  pointer-events: auto;
  border-radius: 35px;
  text-align: center;
  display: block;
}

.round-button:hover {
  color: black;
  background-color: white;
  cursor: pointer;
}

/*full page extra*/

#section0.active + #section1 {
  background-color: rgba(42, 39, 56, 0);
}

#section1,
#section2,
#section3 {
  transition: all 0.7s ease-in-out;
  background-color: rgba(42, 39, 56, 0.8);
}

/*Layout*/

.content {
  pointer-events: none;
}

#section1,
#section2,
#section3 {
  pointer-events: auto;
}

#background {
  width: 100%;
  height: 100%;
  position: absolute;
}

.header {
  width: 60vw;
  margin: 0 auto;
  position: absolute;
  display: inline-block;
}

.intro {
  text-align: center;
}

.content {
  width: 100%;
  margin: 0 auto;
}

.section-wrapper {
  margin: 0 auto;
  width: 80%;
}
.slide-section-wrapper {
  margin: 0 auto;
}

/*Stick to Top Menu*/
.menu-bottom ul li {
  display: inline;
  margin-right: 20px;
}

.menu-bottom ul {
  padding: 0;
}

.menu-bottom {
  z-index: 1000;
  top: 0;
  position: fixed;

  width: 85%;
  padding: 1% 8%;
}

#menu li a {
  margin: 4% 0;
}

.menu-sub li {
  color: gray;
  font-size: 1em;
}

.menu-sub li a {
  color: #b0b0b0;
}

#language-menu {
  float: right;
}

.chapter-submenu {
  width: 86%;
  padding: 5% 0 0 0;
  margin: 0 auto;
  z-index: 1000;
}
.chapter-submenu ul li {
  display: inline;
  margin-right: 2%;
}

ul.menu-sub {
  padding-left: 0;
}

.menu-sub li.active > a {
  color: white !important ;
}

#section0 {
  height: 100vh;
}

.chapter-submenu {
  position: absolute;
}

.buy-book {
  margin: 0 auto;
  text-align: center;
}

.buy-book p {
  text-align: left;
}

.team {
  width: 15%;
  display: inline-block;
  padding-right: 4%;
  vertical-align: top;
}
.team img,
.book img {
  width: 100%;
}

.book {
  width: 40%;
  display: inline-block;
  padding: 0 2.5%;
  text-align: center;
  vertical-align: top;
}

.book img {
  text-align: center;
  display: block;

  max-width: 200px;
  margin: 0 auto 8% auto;
}

.right,
.left {
  display: inline-block;
  width: 40%;
  margin-left: 1%;
  margin-right: 1%;
  text-align: left;
  vertical-align: middle;
}

.chapter-nav {
  text-align: center;
}

.nav-unit-wrapper-s {
  padding: 5%;
  margin: 8% auto;
  text-align: left;
  background-color: white;

  box-shadow: 0px 0px 20px rgba(135, 152, 160, 0.3);
  -webkit-transition: box-shadow 0.5s ease-out;
  transition: box-shadow 0.5s ease-out;
}

.nav-unit-wrapper-s:hover {
  box-shadow: 0px 0px 40px rgb(255, 255, 255);
}

.nav-unit-wrapper-s img {
  vertical-align: middle;
}

.nav-unit-title-s {
  vertical-align: middle;
  display: inline-block;
}

@media screen and (min-width: 0px) {
  .menu-bottom ul li {
    font-size: 16px;
  }

  .chapter-submenu {
    padding-top: 10%;
    padding-left: 8%;
  }
  .menu-sub li {
    font-size: 0.7em;
  }

  .section-wrapper {
    width: 80%;
  }

  .slide-section-wrapper {
    width: 100%;
  }

  /**/
  .nav-unit-wrapper-s {
    width: 6em;
    text-align: center;
  }

  .nav-unit-wrapper-s img {
    width: 4em;
  }

  .nav-unit-title-s {
    padding-left: 0;
    font-size: 0.8em;
  }

  /*Font Size*/
  h1 {
    font-size: 20px;
  }

  h4 {
    font-size: 14px;
  }

  p {
    font-size: 14px;
    font-weight: 300;
  }

  .rec_button {
    font-size: 12px;
    padding: 2% 8%;
  }

  .book {
    width: 60%;
  }

  /*.buy-book p{
		padding-bottom: 2%;
	}*/
}

@media screen and (min-width: 680px) {
  .menu-bottom ul li {
    font-size: 18px;
  }

  .menu-sub li {
    font-size: 0.75em;
  }

  .chapter-submenu {
    padding-top: 8%;
    padding-left: 8%;
  }

  .section-wrapper {
    width: 70%;
  }

  .slide-section-wrapper {
    width: 80%;
  }

  /**/
  .nav-unit-wrapper-s {
    width: 15em;
    text-align: left;
  }

  .nav-unit-wrapper-s img {
    width: 5em;
  }

  .nav-unit-title-s {
    padding-left: 10%;
  }

  .nav-unit-wrapper-s img {
    width: 5em;
  }

  .right,
  .left {
    width: 43%;
    margin-left: 2%;
    margin-right: 2%;
    max-width: 360px;
  }

  .right {
    padding-top: 5em;
  }

  /*Font Size*/
  h1 {
    font-size: 40px;
  }

  h4 {
    font-size: 20px;
  }

  p {
    font-size: 18px;
  }

  .rec_button {
    padding: 1.5% 8%;
  }

  .book {
    width: 35%;
  }
}

@media screen and (min-width: 1024px) {
  .menu-bottom ul li {
    font-size: 20px;
  }

  .chapter-submenu {
    padding-top: 5%;
    padding-left: 8%;
  }

  .menu-sub li {
    font-size: 1em;
  }

  .section-wrapper {
    width: 60%;
  }

  /*Section2*/
  .nav-unit-wrapper-s {
    width: 20em;
  }

  .nav-unit-wrapper-s img {
    width: 6em;
  }

  .nav-unit-title-s {
    font-size: 1em;
    padding-left: 10%;
  }

  /*Font Size*/
  h1 {
    font-size: 40px;
  }

  h4 {
    font-size: 24px;
  }

  p {
    font-size: 18px;
    font-weight: 400;
  }

  .rec_button {
    font-size: 16px;
    padding: 1% 8%;
  }

  .book {
    width: 30%;
  }

  /*	.book img{
	
	 max-width: 200px;
	 margin: 0 auto;
	 padding-bottom: 5%;
	}*/

  .right {
    padding-top: 8em;
  }
}

/*Social*/
#social {
  margin: 0 auto;
  width: 100%;
}
#social ul {
  display: block;
  list-style-type: none;
  margin: 0 auto;
  text-align: center;
  padding: 4em 0 0 0;

  width: 100%;
}

#social ul li {
  display: inline-block;
  padding: 2%;
}

h6 {
  margin: 0.8em;
  font-weight: 400;
}

.btn-social {
  display: inline-block;
  height: 50px;
  width: 50px;
  border: 2px rgba(255, 255, 255, 0.2);
  border-radius: 100%;
  text-align: center;
  vertical-align: middle;
  font-size: 20px;
  line-height: 45px;
}

.btn-outline {
  color: rgba(255, 255, 255, 0.2);
  font-size: 20px;
  border: solid 2px rgba(255, 255, 255, 0.2);
  background: transparent;
  transition: all 0.1s ease-in-out;
}

.fa-fw {
  vertical-align: middle;
}
.dollar:hover,
.dollar:focus,
.dollar:active,
.dollar.active {
  /*color: white;*/
  color: #00d0a1;
  background: white;
  border: solid 2px white;
}

.envelope:hover,
.envelope:focus,
.envelope:active,
.envelope.active {
  color: #ff9b3c;
  background: white;
  border: solid 2px white;
}

.github:hover,
.github:focus,
.github:active,
.github.active {
  color: #6e5494;
  background: white;
  border: solid 2px white;
}

.twitter:hover,
.twitter:focus,
.twitter:active,
.twitter.active {
  color: #1dcaff;
  background: white;
  border: solid 2px white;
}

/***extra****/

.round-button-x {
  /*border: 1px solid white;*/
  display: inline-block;
  padding: 4% 12%;
  color: gray;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 35px;
  text-align: center;
  display: block;
}

.award {
  display: inline-block;
  padding-right: 10px;
  padding-bottom: 5px;
  opacity: 0.4;
}

@media screen and (min-width: 0px) {
  .award {
    height: 20px;
  }
}

@media screen and (min-width: 680px) {
  .award {
    height: 40px;
  }
}

.award:hover {
  opacity: 1;
}

.language-setting select {
  padding-right: 20px;
  color: black;
  width: auto;
  border: none;
  background: url(../img/button/languageSettingArrow-w.svg) no-repeat right;
  font-size: 16px;
  font-family: "Assistant";
  text-align: right;
  -moz-appearance: none;
  -webkit-appearance: none;
  text-decoration: none;
  font-weight: bold;
}