* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  direction: ltr;
  /* font-family: ; */
}

:root {
  --light-green-color: #04aa6d;
  --light-yellow-color: #e7de96;
  --light-blue-color: #88c1c2;
  --lighter-blue-color: #c5d9ce;
  --light-black-color: #0d1721;
  --white-color: #ffffff;
  --darker-white-color: #dcd6d6;
  --dark-blue-color: #282a35;
  --black-color: #000000;
  --light-pink-color: #e7afb6;
  --alternate-pink-color: #ffc0c7;
  --grey-color: #dddddd;
  --yellow-link-color: #fff4a3;
}

a {
  text-decoration: none;
  white-space: nowrap;
}

button {
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 25px;
  padding: 16px 70px;
  width: 100%;
  font-size: 16px;
  white-space: nowrap;
  font-weight: bold;
  border: none;
  outline: none;
  cursor: pointer;
}

ul {
  list-style-type: none;
}

/*-------------------header start-------------------*/

#top-nav-bar {
  position: sticky;
  top: t0px;
  z-index: 1000;
}

#page-top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #1d2a35;
  padding: 0 10px;
}

#tnb-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

#tnb-logo i {
  color: var(--light-green-color);
}

#tnb-desktop {
}

#tnb-desktop > ul {
}

#tnb-desktop > ul > li {
  display: inline-block;
  padding: 20px 25px;
}

#tnb-desktop > ul > li:hover {
  background-color: var(--light-green-color);
}

#tnb-desktop > ul > li > a {
  color: var(--grey-color);
  font-size: 17px;
}

#tnb-desktop > ul > li:hover > a {
  color: var(--white-color);
}

#tnb-search-box {
  position: relative;
}

#tnb-search-box input {
  width: 100%;
  padding: 10px;
  border-radius: 20px;
  font-size: 14px;
  border: none;
  outline: none;
}

#tnb-search-box input:focus {
  border: 4px solid #00ab6c;
}

#tnb-search-box input::placeholder {
  color: #757579;
}
#tnb-search-box a {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 50%;
  right: 0px;
  padding: 5px;
  border-radius: 50%;
}

#tnb-search-box a:hover {
  background-color: #f1f1f1;
}

#tnb-dark-mode-toggle {
  display: flex;
  justify-content: center;
  align-items: center;
}

#tnb-dark-mode-toggle a {
  padding: 5px;
  border-radius: 50%;
}

#tnb-dark-mode-toggle a:hover {
  background-color: #313b45;
}

#tnb-right-section {
  display: flex;
  flex-direction: row-reverse;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}

#tnb-right-section > div:not(#tnb-login-section) {
  padding: 10px;
  border-radius: 25px;
}

#tnb-right-section > div:not(#tnb-login-section):hover {
  background-color: #303d46;
}

#tnb-right-section > div:not(#tnb-login-section) a {
  color: #b9bbbd;
}

#tnb-right-section > div i {
  color: #9763f6;
}

#tnb-login-section,
#tnb-login-section > div {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#tnb-login-section {
  border-radius: 25px;
  overflow: hidden;
  background-color: #d9ede1;
}

#tnb-login-section #tnb-log-in-btn {
  background-color: #d9ede1;
  color: var(--light-green-color);
}

#tnb-log-in-btn a {
  color: var(--black-color);
}

#tnb-login-section #tnb-sign-up-btn {
  background-color: var(--light-green-color);
  color: var(--white-color);
  border-radius: inherit;
}

#tnb-sign-up-btn a {
  color: var(--white-color);
}

#tnb-login-section a {
  padding: 10px;
}

/*---------------drop down start------------------*/

/* #tnb-desktop > ul > li > .sub-menu {
  overflow: auto;
  position: relative;
} */

#tnb-desktop .close {
  position: absolute;
}

#tnb-desktop > ul > li:hover .tutorials-dropdown {
  /* display: grid; */
}

.tutorials-dropdown {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 50px auto auto;
  grid-row-gap: 30px;
  /*---display should be grid-----*/
  display: none;
  position: absolute;
  right: 0;
  left: 0;
  top: 60px;
  height: 100vh;
  background-color: #282a35;
  padding: 30px 100px;
  overflow: auto;
}

/*---the input---*/
.tutorials-dropdown > div:nth-child(2) {
  grid-column-end: span 2;
}

.tutorials-dropdown input {
  background-color: #454545;
  color: var(--white-color);
  border: 1px solid #6b6959;
  border-radius: 25px;
  outline: none;
  position: relative;
  font-size: 15px;
  font-weight: bold;
  padding: 14px;
  width: 50%;
}

.tutorials-dropdown input + i {
  position: absolute;
  top: 50%;
  right: 50px;
}

.tutorials-dropdown input::placeholder {
  font-weight: bold;
  font-style: italic;
  font-size: 14px;
  color: var(--white-color);
}

.tutorials-dropdown input:focus {
  outline: 4px solid #04aa6d;
}

.tutorials-dropdown ul li {
  margin-top: 8px;
}

.tutorials-dropdown ul li a {
  border-radius: 5px;
  padding: 5px;
}

.tutorials-dropdown ul li a:first-of-type {
  color: var(--white-color);
}

.tutorials-dropdown ul li a:first-of-type:hover {
  background-color: #cccccc;
  color: var(--black-color);
}

.tutorials-dropdown ul li a:not(:first-of-type),
.tutorials-dropdown h1,
.tutorials-dropdown h2 {
  color: var(--light-yellow-color);
}

.tutorials-dropdown ul li a:not(:first-of-type):hover {
  background-color: var(--light-green-color);
  color: var(--white-color);
}

#web-building ul li {
  color: var(--white-color);
  padding: 6px;
}

#web-building ul li:hover {
  background-color: #cccccc;
  border-radius: 5px;
}

#web-building ul li:hover a {
  color: var(--black-color);
}

/* two spans in web building sections */

.tutorials-dropdown span {
  border: 1px solid var(--black-color);
  border-radius: 10px;
  padding: 4px 9px;
  color: var(--white-color);
  font-size: 12px;
}

/*---------------drop down end------------------*/

nav#tnb-courses-bar ul {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  overflow: auto;
}

#tnb-courses-bar ul li {
  background-color: var(--dark-blue-color);
  padding: 10px 15px;
}

#tnb-courses-bar ul li:hover {
  background-color: #020a00;
}

#tnb-courses-bar ul li a {
  color: #eaf1eb;
}
/*-----------------header end--------------------*/
/*-----------------main start--------------------*/
#main {
}

#main #first-section {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--dark-blue-color);
  padding: 150px 0px;
  position: relative;
}

#main section:not(#first-section) {
  padding: 100px 0px;
}

#hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 25px;
  width: 30%;
}
#hero h1 {
  font-size: 60px;
  color: var(--white-color);
}

#hero h3 {
  color: var(--yellow-link-color);
}

#hero #hero-search-box {
  position: relative;
  border-radius: 25px;
  width: 100%;
  overflow: hidden;
}

#hero #hero-search-box input {
  width: 100%;
  padding: 15px;
  border: none;
  outline: none;
  font-size: 18px;
}

#hero #hero-search-box input::placeholder {
  font-size: 16px;
  font-weight: 600;
}

#hero #hero-search-box i {
  position: absolute;
  right: 0;
  background-color: var(--light-green-color);
  color: var(--white-color);
}

#hero a {
  color: var(--white-color);
  text-decoration: underline 3px solid;
  font-size: 25px;
}

#hero #hero-bottom-wave {
  position: absolute;
  bottom: 0;
}

#hero #hero-asternaut {
  position: absolute;
  top: 35%;
  right: 150px;
}

.two-bar-showcase {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 150px;
}

.two-bar-showcase .tutorial-info {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.two-bar-showcase h2 {
  font-size: 80px;
  padding-bottom: 20px;
  letter-spacing: 3px;
}

.two-bar-showcase .tutorial-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  width: 80%;
  white-space: nowrap;
}

.two-bar-showcase .tutorial-links p {
  font-size: 22px;
}

.two-bar-showcase.html {
  background-color: var(--lighter-blue-color);
}

.two-bar-showcase.css {
  background-color: var(--light-yellow-color);
}

.two-bar-showcase.javascript {
  background-color: var(--light-black-color);
}

.javascript h2,
.javascript p {
  color: var(--white-color);
}

.javascript .tutorial-reference {
  background-color: var(--white-color) !important;
  color: var(--black-color);
}
.two-bar-showcase.python {
  background-color: var(--darker-white-color);
}
.two-bar-showcase.sql {
  background-color: var(--light-blue-color);
}

.two-bar-showcase button:not(.light-pink-color) {
  color: var(--white-color);
}

.light-green-color {
  background-color: var(--light-green-color);
}

.light-green-color:hover {
  background-color: #059862;
}

/*-------------grid1 start-------------*/

.grid1 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-column-gap: 80px;
  grid-row-gap: 60px;
  background-color: var(--light-black-color);
  padding: 70px 50px !important;
}

.grid1 > div {
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 5px;
  padding: 30px;
}

.grid1 > div > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 25px;
  width: 50%;
}

.grid1 > div > div h2 {
  font-size: 40px;
}

.grid1 > div > div p {
  font-size: 19px;
  font-weight: 500;
  white-space: nowrap;
}

.grid1 > div > div button {
  background-color: var(--dark-blue-color);
  color: var(--white-color);
  margin-top: 30px;
}

.grid1 > div > div button:hover {
  background-color: var(--black-color);
}

/*-------------grid1 end-------------*/
/*-------------grid2 start-------------*/

.grid2 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-column-gap: 80px;
  grid-row-gap: 40px;
  background-color: var(--light-black-color);
  padding: 70px 50px !important;
}

.grid2 div {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 45px;
  border-radius: 5px;
}

.grid2 div h2 {
  font-size: 30px;
  white-space: nowrap;
}

.grid2 .span-two-columns {
  grid-column-end: span 2;
}

.dark-blue-color {
  background-color: var(--dark-blue-color);
}

:not(.grid1 div).dark-blue-color:hover {
  background-color: var(--black-color);
}

.light-pink-color {
  background-color: var(--alternate-pink-color);
  color: var(--black-color);
}

:not(.grid1 div).light-pink-color:hover {
  background-color: #ffb4bb;
}

.light-yellow-color {
  background-color: var(--light-yellow-color);
}

:not(.grid1 div).light-yellow-color:hover {
  background-color: #fff4a4;
}

.darker-white-color {
  background-color: var(--darker-white-color);
}

:not(.grid1 div).darker-white-color:hover {
  background-color: #f4ecea;
}

.light-blue-color {
  background-color: var(--light-blue-color);
}

:not(.grid1 div).light-blue-color:hover {
  background-color: #96d4d3;
}

.lighter-blue-color {
  background-color: var(--lighter-blue-color);
}

:not(.grid1 div).lighter-blue-color:hover {
  background-color: #d9ede1;
}

/*-------------grid2 end-------------*/

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.container > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.header {
  font-size: 60px;
}

.description {
  font-size: 24px;
  font-weight: bold;
}

.green-button {
  background-color: var(--light-green-color);
  color: var(--white-color);
  font-size: 17px;
  width: 35%;
}

.green-button:hover {
  background-color: #059560;
}

.black-button {
  background-color: var(--dark-blue-color);
  color: var(--white-color);
}

.black-button:hover {
  background-color: var(--black-color);
} /*--these style for h2 and p is repeated in sections below----*/

/*-------------code-editor start----------*/

#code-editor {
  background-color: var(--light-black-color);
}

#code-editor h2 {
  color: var(--white-color);
}

#code-editor p {
  color: var(--white-color);
  font-size: 21px;
}

#code-editor img {
  margin-top: 40px;
}

#code-editor button {
  align-self: flex-start;
  width: 38%;
  padding: 10px;
  border-radius: 5px;
}

#code-editor button:first-of-type {
  background-color: var(--light-green-color);
  color: var(--white-color);
}

#code-editor button:first-of-type:hover {
  background-color: #059862;
}

#code-editor button:last-of-type {
  background-color: var(--light-yellow-color);
  color: var(--black-color);
}

#code-editor button:last-of-type:hover {
  background-color: #ffef7e;
}

/*-------------code-editor start----------*/

/*-------------spaces start---------------*/

#spaces {
  background-color: var(--light-black-color);
  padding-top: 20px !important;
}

#spaces h2 {
  color: var(--white-color);
}

#spaces p {
  color: var(--white-color);
  white-space: break-spaces;
}

#spaces div a {
  color: #fabcc3;
  text-decoration: underline 2px solid;
}

#spaces img {
  margin: 40px 0px;
}

/*-------------spaces end---------------*/

/*-------------track-learning start---------------*/

#track-learning {
  background-color: #d9eee1;
}

/*-------------track-learning end---------------*/

/*-------------plus-user start---------------*/

#plus-user {
  background-color: var(--light-black-color);
}

#plus-user h2,
#plus-user p {
  color: var(--white-color);
}

#plus-user div > p {
  color: var(--alternate-pink-color);
}

#plus-user ul {
  list-style-image: url("images/list-style-image.png");
}

#plus-user li {
  margin-bottom: 5px;
}

/*-------------plus-user end---------------*/

/*-------------color-picker start---------------*/

#color-picker {
  background-color: #f3ecea;
}
/*-------------color-picker end---------------*/

/*-------------code-game start---------------*/

#code-game {
  background-color: #96d4d3;
}

/*-------------code-game end---------------*/

/*-------------exercises-quizzes start---------------*/

#exercises {
  flex-direction: column;
  gap: 10px;
  background-color: var(--light-black-color);
  padding: 100px 90px !important;
}

#exercises h2,
#exercises > p {
  color: var(--white-color);
}

#exercises #exercises-quizzes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-column-gap: 120px;
  margin-top: 40px;
  width: 100%;
}

#exercises-quizzes div {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 90px;
  border-radius: 5px;
}

#exercises-quizzes div p {
  font-size: 35px;
  font-weight: bold;
}

#exercises-quizzes div:first-child {
  color: var(--white-color);
}

#exercises-quizzes div:last-child {
  color: var(--black-color);
}
#exercises-quizzes div:last-child:hover {
  background-color: #fff4a4;
}

/*-------------exercises-quizzes end---------------*/

/*-------------web-templates start---------------*/

#web-templates {
  background-color: #38444d;
}
#web-templates h2,
#web-templates p {
  color: var(--grey-color);
}

#web-templates button {
  background-color: #282a35;
  color: var(--white-color);
}

#web-templates button:hover {
  background-color: var(--black-color);
}

/*-------------web-templates end---------------*/

/*-------------certificate start---------------*/

#certificate {
  flex-direction: column;
  gap: 30px;
  padding: 100px 40px !important;
  background-color: var(--light-black-color);
}

#certificate * {
  align-self: start;
}

#certificate h2 {
  font-size: 52px;
  color: var(--alternate-pink-color);
}

/*-------------certificate end---------------*/

/*-------------how-to start---------------*/

#how-to {
  background-color: #1d2a35;
}

#how-to h2 {
  color: var(--grey-color);
}

#how-to p {
  color: var(--grey-color);
}

#how-to p:last-of-type {
  font-size: 18px;
  font-weight: bold;
}

#how-to button {
  background-color: #0d1721;
  color: var(--white-color);
  width: 60%;
}

/*-------------how-to end---------------*/

/*-----------------main end--------------------*/

/*-------------footer start---------------*/

#footer {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 60px 1fr 1fr;
  grid-column-gap: 100px;
  background-color: #171921 !important;
  background: url(images/footer-image.jpg);
  background-repeat: no-repeat;
  background-position: bottom right;
  padding: 70px 120px;
  height: 800px;
}

#footer #footer-nav {
  grid-column-end: span 4;
}

#footer #footer-bottom {
  grid-column-end: span 3;
}

#footer h4 {
  margin-bottom: 20px;
}

#footer ul {
  list-style-type: none;
}

#footer #footer-nav li,
#footer #footer-bottom li {
  display: inline-block;
}

#footer #footer-nav li {
  margin-right: 50px;
}

#footer #footer-bottom li {
  margin-right: 10px;
}

#footer li#logo a {
  color: var(--white-color);
}

#footer #footer-nav a {
  color: var(--yellow-link-color);
}

#footer #footer-nav a:hover {
  text-decoration: underline 1px solid var(--yellow-link-color);
}

#footer *:not(#footer-nav a) {
  color: var(--grey-color);
}

#footer a:hover {
  color: var(--yellow-link-color) !important;
}

#footer .footer-nav-links a {
  font-size: 13px;
}

#copy-writing {
  font-size: 13px;
}

#copy-writing p:last-child {
  padding-top: 15px;
}

#copy-writing p a {
  text-decoration: underline 1px solid var(--grey-color);
  font-size: inherit;
}

#copy-writing p a:hover {
  text-decoration: underline 1px solid var(--yellow-link-color);
}
/*-------------footer end---------------*/