* {
  padding: 0;
  margin: 0;
  border: 0;
}

*, *:before, *:after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

:focus, :active {
  outline: none;
}

a:focus, a:active {
  outline: none;
}

nav, footer, header, aside {
  display: block;
}

html, body {
  height: 100%;
  width: 100%;
  font-size: 100%;
  line-height: 1;
  font-size: 14px;
  -ms-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

input, button, textarea {
  font-family: inherit;
}

input::-ms-clear {
  display: none;
}

button {
  cursor: pointer;
}

button::-moz-focus-inner {
  padding: 0;
  border: 0;
}

a, a:visited {
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

ul li {
  list-style: none;
}

img {
  vertical-align: top;
}

h1, h2, h3, h4, h5, h6 {
  font-size: inherit;
  font-weight: 400;
}

body {
  background-color: #1c222a;
  padding: 10px;
  position: relative;
}

.app__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  opacity: 0.06;
  z-index: -2;
}

.wrapper {
  width: 100%;
  height: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
}

.nav {
  width: 19%;
  min-width: 220px;
  height: 100%;
  background-color: #edb021;
  opacity: 0.9;
  border-radius: 10px;
  margin: 0px 10px 0px 0px;
}

.nav__row {
  height: 100%;
  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;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
}

.nav__item {
  width: 90%;
  height: calc((100% / 8) - 20px);
  background-color: #6a655d;
  border-radius: 5px;
  font-family: "Fontdiner Swanky", cursive;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  margin: 0px 0px 10px 0px;
  -webkit-transition: all 0.2s;
  transition: all 0.2s;
  cursor: pointer;
}

.nav__item span {
  margin: 0px 0px 0px 15px;
  font-size: 18px;
  color: #dcdcdc;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

#title {
  margin: 10px 0px 10px 0px;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  background: transparent;
  cursor: default;
}

#title span {
  margin: 0px 0px 0px 0px;
  color: #825b00;
}

.nav__item--hover {
  background-color: #7c776e;
  -webkit-transform: scale(1.04);
  transform: scale(1.04);
}

.test {
  height: calc((100% / 4) - 20px);
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  background-color: #dcdcdc;
  padding: 20px;
}

.test span {
  margin: 0px 0px 0px 0px;
  text-align: center;
  font-size: 26px;
  color: #6a655d;
}

.nav__item--selected {
  background-color: #825b00;
}

.nav__item--selected-test {
  background-color: #fdffe9;
  border-radius: 30px;
}

::-webkit-scrollbar {
  width: 19px;
  height: 8px;
  background-color: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: #edb021c5;
  border-radius: 9em;
}

::-webkit-scrollbar-thumb:active {
  background-color: #825b00;
}

.field {
  height: 100%;
  width: 80%;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  border: 1px #edb021 solid;
}

.field .field__content {
  width: 100%;
  height: 100%;
  border-radius: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}

.field .introduction {
  width: 100%;
  height: 100%;
  border-radius: 10px;
  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;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  color: #dcdcdc;
}

.field .introduction .introduction__name {
  margin: 170px 0px 20px 0px;
}

.field .introduction .introduction__name span {
  font-size: 42px;
}

.field .introduction .introduction__group {
  margin: 0px 0px 20px 0px;
}

.field .introduction .introduction__group span {
  font-size: 32px;
}

.field .introduction .introduction__project-name span {
  font-size: 32px;
}

.field .introduction img {
  width: 200px;
}

.header {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  border-bottom: 1px #edb021 solid;
  min-height: 70px;
  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;
  color: #dcdcdc;
  font-size: 32px;
}

.header .header__title {
  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;
  height: 100%;
}

.main {
  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-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  padding: 20px;
  overflow: auto;
}

.main .why {
  width: 100%;
  height: auto;
  color: #dcdcdc;
}

.main .why .why__quote {
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

.main .why .why__quote q {
  color: #dcdcdc;
  font-size: 18px;
}

.main .why .why__task {
  margin: 20px 0px 0px 0px;
}

.main .why .why__task .why__why span {
  font-size: 28px;
}

.main .why .why__task .why__benefits {
  margin: 10px 0px 0px 0px;
}

.main .why .why__task .why__benefits p {
  font-size: 18px;
}

.main .why .why__task .why__benefits p span {
  color: #fff1d1;
  font-size: 20px;
  font-weight: bold;
}

.main .why .why__task .why__benefits .why__list {
  margin: 10px 0px 0px 20px;
}

.main .why .why__task .why__benefits .why__list li {
  position: relative;
  margin: 5px 0px 0px 0px;
}

.main .why .why__task .why__benefits .why__list li span {
  padding: 0px 0px 0px 25px;
  font-size: 18px;
}

.main .why .why__task .why__benefits .why__list li:after {
  content: "";
  width: 20px;
  height: 20px;
  position: absolute;
  top: -1px;
  left: 0;
  background: url("./img/check.png") center/cover no-repeat;
}

.main .hands {
  color: #dcdcdc;
}

.main .hands .hands__title {
  margin: 20px 0px 0px 0px;
}

.main .hands .hands__title span {
  font-size: 28px;
}

.main .hands img {
  margin: 15px 0px 0px 0px;
  width: 500px;
  border-radius: 10px;
  opacity: 0.8;
}

.main .hands .hands__text {
  margin: 20px 0px 0px 0px;
  font-size: 18px;
}

.main .hands .hands__text span {
  font-size: 20px;
  font-weight: bold;
  color: #fff1d1;
}

.main .hands .hands__quote {
  margin: 20px 0px 0px 0px;
  font-size: 18px;
  display: block;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

.main .hands .hands__quote span {
  font-size: 20px;
  font-weight: bold;
}

.main .typing {
  color: #dcdcdc;
  margin: 20px 0px 0px 0px;
}

.main .typing .typing__title span {
  font-size: 28px;
}

.main .typing .typing__text {
  margin: 10px 0px 0px 0px;
}

.main .typing .typing__text p {
  font-size: 18px;
  margin: 0px 0px 10px 0px;
}

.lesson {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  width: 100%;
  height: 100%;
  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;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
}

.lesson img {
  width: 500px;
  border-radius: 10px;
  opacity: 0.8;
}

.lesson__words {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  padding: 15px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  margin: 0px 0px 6px 0px;
}

.lesson__words span {
  color: #dcdcdc;
  font-size: 26px;
  padding: 0px 7px 0px 7px;
}

.lesson__words #previous--correct {
  color: #3cdb3c9a;
}

.lesson__words #previous--not-correct {
  color: #db3c3c9a;
}

.lesson__input {
  resize: none;
  width: 100%;
  max-height: 100px;
  padding: 15px;
  border-radius: 10px;
  color: #dcdcdc;
  font-size: 26px;
  background-color: rgba(0, 0, 0, 0.2);
  margin: 0px 0px 6px 0px;
}

.lesson__input:focus {
  border: 1px #edb021 solid;
}

.statistic {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 15px;
  border-radius: 10px;
  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;
  margin: 0px 0px 6px 0px;
}

.statistic .statistic__row {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  width: 70%;
  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;
}

.statistic .statistic__row .statistic__item {
  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-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  font-size: 16px;
}

.statistic .statistic__row .statistic__item span {
  margin: 5px 0px 0px 0px;
}

.statistic .statistic__row .statistic__item div {
  padding: 5px;
  border-bottom: 1px rgba(2, 23, 37, 0.658) solid;
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 26px;
  color: #dcdcdc;
}

.statistic .statistic__row .statistic__item div span {
  font-family: monospace;
  margin: 0px 0px 0px 0px;
}

.test__row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  height: 100%;
}

.test__row .lesson__words {
  margin: 0px 0px 0px 0px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  width: 49.5%;
  height: 100%;
  padding: 15px 10px 15px 10px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: auto;
}

.test__row .lesson__words span {
  color: #dcdcdc;
  font-size: 26px;
  padding: 0px 5px 0px 5px;
}

.test__row .lesson__words #previous--correct {
  color: #3cdb3c9a;
}

.test__row .lesson__words #previous--not-correct {
  color: #db3c3c9a;
}

.test__row .lesson__input {
  resize: none;
  margin: 0px 0px 0px 0px;
  width: 49.5%;
  min-height: 100%;
  padding: 15px;
  border-radius: 10px;
  color: #dcdcdc;
  font-size: 26px;
  background-color: rgba(0, 0, 0, 0.2);
}