:root {

  /**
     * colors
     */

  --selective-yellow: hsl(42, 94%, 55%);
  --eerie-black-1: hsl(0, 0%, 9%);
  --eerie-black-2: hsl(180, 3%, 7%);
  --quick-silver: hsl(0, 0%, 65%);
  --radical-red: hsl(351, 83%, 61%);
  --light-gray: hsl(0, 0%, 80%);
  --isabelline: hsl(36, 33%, 94%);
  --gray-x-11: hsl(0, 0%, 73%);
  --kappel_15: hsla(170, 75%, 41%, 0.15);
  --platinum: hsl(0, 0%, 90%);
  --gray-web: hsl(0, 0%, 50%);
  --black_80: hsla(0, 0%, 0%, 0.8);
  --white_50: hsla(0, 0%, 100%, 0.5);
  --black_50: hsla(0, 0%, 0%, 0.5);
  --black_30: hsla(0, 0%, 0%, 0.3);
  --kappel: #0062ff;
  --white: hsl(0, 0%, 100%);

  /**
     * gradient color
     */

  --gradient: linear-gradient(-90deg, hsl(151, 58%, 46%) 0%, hsl(170, 75%, 41%) 100%);

  /**
     * typography
     */

  --ff-league_spartan: 'League Spartan', sans-serif;
  --ff-poppins: 'Poppins', sans-serif;

  --fs-1: 4.2rem;
  --fs-2: 3.2rem;
  --fs-3: 2.3rem;
  --fs-4: 1.8rem;
  --fs-5: 1.5rem;
  --fs-6: 1.4rem;
  --fs-7: 1.3rem;

  --fw-500: 500;
  --fw-600: 600;

  /**
     * spacing
     */

  --section-padding: 75px;

  /**
     * shadow
     */

  --shadow-1: 0 6px 15px 0 hsla(0, 0%, 0%, 0.05);
  --shadow-2: 0 10px 30px hsla(0, 0%, 0%, 0.06);
  --shadow-3: 0 10px 50px 0 hsla(220, 53%, 22%, 0.1);

  /**
     * radius
     */

  --radius-pill: 500px;
  --radius-circle: 50%;
  --radius-3: 3px;
  --radius-5: 5px;
  --radius-10: 10px;

  /**
     * transition
     */

  --transition-1: 0.25s ease;
  --transition-2: 0.5s ease;
  --cubic-in: cubic-bezier(0.51, 0.03, 0.64, 0.28);
  --cubic-out: cubic-bezier(0.33, 0.85, 0.4, 0.96);

}





/*-----------------------------------*\
    #RESET
  \*-----------------------------------*/

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

li {
  list-style: none;
}

a,
img,
span,
data,
input,
button,
ion-icon {
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  height: auto;
}

input,
button {
  background: none;
  border: none;
  font: inherit;
}

input {
  width: 100%;
}

button {
  cursor: pointer;
}

ion-icon {
  pointer-events: none;
}

address {
  font-style: normal;
}

html {
  font-family: var(--ff-poppins);
  font-size: 10px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--white);
  color: var(--gray-web);
  font-size: 1.6rem;
  line-height: 1.75;
}



:focus-visible {
  outline-offset: 4px;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background-color: hsl(0, 0%, 98%);
}

::-webkit-scrollbar-thumb {
  background-color: hsl(0, 0%, 80%);
}

::-webkit-scrollbar-thumb:hover {
  background-color: hsl(0, 0%, 70%);
}





/*-----------------------------------*\
    #REUSED STYLE
  \*-----------------------------------*/

.container {
  padding-inline: 15px;
}


.shape {
  position: absolute;
  display: none;
}

.has-bg-image {
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

.h1,
.h2,
.h3 {
  color: var(--eerie-black-1);
  font-family: var(--ff-league_spartan);
  line-height: 1;
}

.h1,
.h2 {
  font-weight: var(--fw-600);
}

.h1 {
  font-size: var(--fs-1);
}

.h2 {
  font-size: var(--fs-2);
}

.h3 {
  font-size: var(--fs-3);
  font-weight: var(--fw-500);
}

.section-title {
  --color: var(--radical-red);
  text-align: center;
  padding: 8px;
}

.section-title .span {
  display: inline-block;
  color: var(--color);
}

.btn {
  background-color: var(--kappel);
  color: var(--white);
  font-family: var(--ff-league_spartan);
  font-size: var(--fs-4);
  display: flex;
  align-items: center;
  gap: 7px;
  max-width: max-content;
  padding: 10px 20px;
  border-radius: var(--radius-5);
  overflow: hidden;
}

.has-before,
.has-after {
  position: relative;
  z-index: 1;
}

.has-before::before,
.has-after::after {
  position: absolute;
  content: "";
}



.btn:is(:hover, :focus)::before {
  transform: translateX(0);
}

.img-holder {
  aspect-ratio: var(--width) / var(--height);
  background-color: var(--light-gray);
  overflow: hidden;
}

.img-cover {
 
  height: 100%;
  object-fit: cover;
}

.section-subtitle {
  font-size: var(--fs-5);
  text-transform: uppercase;
  font-weight: var(--fw-500);
  letter-spacing: 1px;
  text-align: center;
  margin-block-end: 30px;
}

.section-text {
  font-size: var(--fs-5);
  text-align: center;
  margin-block: 15px 25px;
}

.grid-list {
  display: grid;
  gap: 30px;
}

.category-card,
.stats-card {
  background-color: hsla(var(--color), 0.1);
}

:is(.course, .blog) .section-title {
  margin-block-end: 40px;
}





/*-----------------------------------*\
    #HEADER
  \*-----------------------------------*/

.header .btn {
  display: none;
}

.header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);

  box-shadow: var(--shadow-1);
  z-index: 4;
}

.header.active {
  position: fixed;
}

.header .container,
.header-actions,
.navbar .wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}


.header-action-btn,
.nav-close-btn {
  position: relative;
  color: var(--eerie-black-1);
  font-size: 24px;
  transition: var(--transition-1);
}

.header-action-btn:is(:hover, :focus) {
  color: var(--kappel);
}

.header-action-btn .btn-badge {
  position: absolute;
  top: -10px;
  right: -10px;
  background-color: var(--kappel);
  color: var(--white);
  font-family: var(--ff-league_spartan);
  font-size: var(--fs-6);
  min-width: 20px;
  height: 20px;
  border-radius: var(--radius-circle);
}

.navbar {
  position: fixed;
  top: 0;
  left: -320px;
  background-color: var(--white);
  width: 100%;
  max-width: 320px;
  height: 100%;
  z-index: 2;
  transition: 0.25s var(--cubic-in);
}

.navbar.active {
  transform: translateX(320px);
  transition: 0.5s var(--cubic-out);
}

.navbar .wrapper {
  padding: 15px 20px;
  border-block-end: 0px solid var(--platinum);
}

.nav-close-btn {
  background-color: var(--white);
  box-shadow: var(--shadow-2);
  padding: 8px;
  border-radius: var(--radius-circle);
}

.nav-close-btn:is(:hover, :focus) {
  background-color: var(--kappel);
  color: var(--white);
}

.navbar-list {
  padding: 15px 20px;
}

.navbar-item:not(:last-child) {
  border-block-end: 1px solid var(--platinum);
}

.navbar-link {
  padding-block: 8px;
  font-weight: var(--fw-500);
  transition: var(--transition-1);
}

.navbar-link:is(:hover, :focus) {
  color: var(--kappel);
}

.overlay {
  position: fixed;
  inset: 0;
  background-color: var(--black_80);
  pointer-events: none;
  opacity: 0;
  z-index: 1;
  transition: var(--transition-1);
}

.overlay.active {
  opacity: 1;
  pointer-events: all;
}





/*-----------------------------------*\
    #HERO
  \*-----------------------------------*/

.hero-text {
  color: var(--eerie-black-1);
  font-size: var(--fs-4);
  text-align: center;
  margin-block: 18px 20px;
}

.hero .btn {
  margin-inline: auto;
}

.hero-banner {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  align-items: flex-start;
  gap: 30px;
}

.hero-banner .img-holder.one {
  border-top-right-radius: 70px;
  border-bottom-left-radius: 110px;
}

.hero-banner .img-holder.two {
  border-top-left-radius: 50px;
  border-bottom-right-radius: 90px;
}





/*-----------------------------------*\
    #CATEGORY
  \*-----------------------------------*/

.category .section-subtitle {
  color: var(--radical-red);
}

.category .section-title {
  --color: var(--kappel);
}

.category .section-text {
  margin-block-end: 40px;
}

.category-card {
  padding: 50px 30px;
  text-align: center;
  border-radius: var(--radius-5);
}

.category-card .card-icon {
  background-color: hsla(var(--color), 0.1);
  width: 80px;
  height: 80px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-circle);
  margin-inline: auto;
  margin-block-end: 30px;
}

.category-card .card-text {
  color: var(--eerie-black-1);
  font-size: var(--fs-5);
  margin-block: 15px 25px;
}

.category-card .card-badge {
  background-color: hsla(var(--color), 0.1);
  color: hsl(var(--color));
  font-size: var(--fs-5);
  font-weight: var(--fw-500);
  padding: 2px 18px;
  max-width: max-content;
  margin-inline: auto;
  border-radius: var(--radius-5);
}





/*-----------------------------------*\
    #ABOUT
  \*-----------------------------------*/

.about {
  padding-block-start: 0;
  overflow: hidden;
}

.about .container {
  display: grid;
  gap: 30px;
}

.about-banner {
  position: relative;
  z-index: 1;
}

.about-banner .img-holder {
  border-radius: var(--radius-10);
}

.about-shape-2 {
  display: block;
  bottom: -100px;
  left: -60px;
  animation: bounce 2.5s infinite;
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-30px);
  }

  60% {
    transform: translateY(-15px);
  }
}

.about :is(.section-subtitle, .section-title, .section-text) {
  text-align: ;
}

.about-item {
  margin-block: 15px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.about-item ion-icon {
  color: var(--selective-yellow);
  font-size: 20px;
  --ionicon-stroke-width: 50px;
}

.about-item .span {
  color: var(--eerie-black-1);
  font-family: var(--ff-league_spartan);
}





/*-----------------------------------*\
    #COURSE
  \*-----------------------------------*/

.course {
  background-color: var(--isabelline);
}

.course-card {
  position: relative;
  background-color: var(--white);
  border-radius: var(--radius-5);
  overflow: hidden;
}

.course-card .img-cover {
  transition: var(--transition-2);
}

.course-card:is(:hover, :focus-within) .img-cover {
  transform: scale(1.1);
}

.course-card :is(.abs-badge, .badge) {
  font-family: var(--ff-league_spartan);
  border-radius: var(--radius-3);
}

.course-card .abs-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: var(--selective-yellow);
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 5px;
  line-height: 1;
  padding: 6px 8px;
  padding-block-end: 3px;
}

.course-card .abs-badge ion-icon {
  font-size: 18px;
  margin-block-end: 5px;
  --ionicon-stroke-width: 50px;
}

.course-card .card-content {
  padding: 5px;
}

.course-card .badge {
  background-color: var(--kappel_15);
  max-width: max-content;
  color: var(--kappel);
  line-height: 25px;
  padding-inline: 10px;
}

.course-card .card-title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin-block: 10px 8px;
  transition: var(--transition-1);
}

.course-card .card-title:is(:hover, :focus) {
  color: var(--kappel);
}

.course-card :is(.wrapper, .rating-wrapper, .card-meta-list, .card-meta-item) {
  display: flex;
  align-items: center;
}

.course-card .wrapper {
  gap: 4;
}

.course-card .rating-wrapper {
  gap: 1px;
}

.course-card .rating-wrapper ion-icon {
  color: var(--selective-yellow);
}

.course-card .rating-text {
  color: var(--eerie-black-1);
  font-size: var(--fs-6);
}

.course-card .price {
  color: var(--radical-red);
  font-family: var(--ff-league_spartan);
  font-size: var(--fs-4);
  font-weight: var(--fw-600);
  margin-block: 8px 15px;
}

.course-card .card-meta-list {
  flex-wrap: wrap;
}

.course-card .card-meta-item {
  position: relative;
  gap: 5px;
}

.course-card .card-meta-item:not(:last-child)::after {
  content: "|";
  display: inline-block;
  color: var(--platinum);
  padding-inline: 1px;
}

.course-card .card-meta-item ion-icon {
  color: var(--quick-silver);
  --ionicon-stroke-width: 50px;
}

.course-card .card-meta-item .span {
  color: var(--eerie-black-1);
  font-size: var(--fs-7);
}

.course .btn {
  margin-inline: auto;
}


/*-----------------------------------*\
    #VIDEO
  \*-----------------------------------*/

.video {
  background-size: contain;
  background-position: center top;
}

.video-banner {
  position: relative;
  border-top-right-radius: 80px;
  border-bottom-left-radius: 120px;
}

.video .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--radical-red);
  font-size: 30px;
  padding: 16px;
  color: var(--white);
  border-radius: var(--radius-circle);
  box-shadow: 0 0 0 0 var(--white_50);
  z-index: 1;
  animation: pulse 3s ease infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--white_50);
  }

  100% {
    box-shadow: 0 0 0 20px transparent;
  }
}

.video-banner::after {
  inset: 0;
  background-color: var(--black_30);
}


/*-----------------------------------*\
    #STATS
  \*-----------------------------------*/

.stats-card {
  text-align: center;
  padding: 25px;
  border-radius: var(--radius-10);
}

.stats-card :is(.card-title, .card-text) {
  font-family: var(--ff-league_spartan);
}

.stats-card .card-title {
  color: hsl(var(--color));
  font-size: var(--fs-2);
  line-height: 1.1;
}

.stats-card .card-text {
  color: var(--eerie-black-1);
  text-transform: uppercase;
}


/*-----------------------------------*\
    #BLOG
  \*-----------------------------------*/

.blog-card .card-banner {
  border-radius: var(--radius-10);
}

.blog-card .card-banner .img-cover {
  transition: var(--transition-2);
}

.blog-card .card-banner::after {
  inset: 0;
  background-color: var(--black_50);
  opacity: 0;
  transition: var(--transition-1);
}

.blog-card:is(:hover, :focus-within) .card-banner .img-cover {
  transform: scale(1.1);
}

.blog-card:is(:hover, :focus-within) .card-banner::after {
  opacity: 1;
}

.blog-card .card-content {
  position: relative;
  margin-inline: 15px;
  background-color: var(--white);
  padding: 20px;
  border-radius: var(--radius-10);
  box-shadow: var(--shadow-3);
  margin-block-start: -100px;
  z-index: 1;
}

.blog-card .card-btn {
  position: absolute;
  top: -40px;
  right: 30px;
  background-color: var(--kappel);
  color: var(--white);
  font-size: 20px;
  padding: 20px;
  border-radius: var(--radius-circle);
  transition: var(--transition-1);
  opacity: 0;
}

.blog-card .card-btn:is(:hover, :focus) {
  background-color: var(--radical-red);
}

.blog-card:is(:hover, :focus-within) .card-btn {
  opacity: 1;
  transform: translateY(10px);
}

.blog-card :is(.card-meta-item, .card-text, .card-subtitle) {
  font-size: var(--fs-5);
}

.blog-card .card-subtitle {
  text-transform: uppercase;
}

.blog-card .card-title {
  margin-block: 10px 15px;
  transition: var(--transition-1);
}

.blog-card .card-title:is(:hover, :focus) {
  color: var(--kappel);
}

.blog-card :is(.card-meta-list, .card-meta-item) {
  display: flex;
}

.blog-card .card-meta-list {
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-block-end: 20px;
}

.blog-card .card-meta-item {
  gap: 10px;
  align-items: center;
  color: var(--eerie-black-1);
}

.blog-card .card-meta-item ion-icon {
  color: var(--kappel);
  font-size: 18px;
  --ionicon-stroke-width: 40px;
}


/*-----------------------------------*\
    #BACK TO TOP
  \*-----------------------------------*/

.back-top-btn {
  position: fixed;
  bottom: 40px;
  right: 30px;
  background-color: var(--kappel);
  color: var(--white);
  font-size: 20px;
  padding: 15px;
  border-radius: var(--radius-circle);
  z-index: 3;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-1);
}

.back-top-btn.active {
  transform: translateY(10px);
  opacity: 1;
  pointer-events: all;
}


/*-----------------------------------*\
    #MEDIA QUERIES
  \*-----------------------------------*/

/**
   * responsive for large than 575px screen
   */

@media (min-width: 575px) {

  /**
     * REUSED STYLE
     */

  .container {
    max-width: 520px;
    width: 100%;
    margin-inline: auto;
  }

  .grid-list {
    grid-template-columns: 1fr 1fr;
  }

  :is(.course, .blog) .grid-list {
    grid-template-columns: 1fr;
  }



  /**
     * HEADER
     */

  .header .container {
    max-width: unset;
  }

  .header-actions {
    gap: 30px;
  }



  /**
     * HERO
     */

  .hero-banner {
    grid-template-columns: 1fr 0.9fr;
  }



  /**
     * VIDEO
     */

  .video .play-btn {
    padding: 25px;
  }



  /**
     * STATS
     */

  .stats-card {
    padding: 40px 30px;
  }




/**
   * responsive for large than 768px screen
   */

@media (min-width: 768px) {

  /**
     * CUSTOM PROPERTY
     */

  :root {

    /**
       * typography
       */

    --fs-1: 4.6rem;
    --fs-2: 3.8rem;

  }



  /**
     * REUSED STYLE
     */

  .container {
    max-width: 720px;
  }

  .btn {
    padding: 15px 30px;
  }

  :is(.course, .blog) .grid-list {
    grid-template-columns: 1fr 1fr;
  }



  /**
     * HEADER
     */

  .header .container {
    padding-inline: 30px;
  }

  .header .btn {
    display: flex;
    padding: 10px 30px;
    margin-inline: 20px;
  }



  /**
     * HERO
     */

  .hero {
    padding-block-start: calc(var(--section-padding) + 20px);
  }

  .hero-text {
    margin-block-end: 30px;
  }

  .hero-banner {
    position: relative;
    z-index: 1;
  }

  .hero-banner .img-holder {
    max-width: max-content;
  }

  .hero-banner .img-holder.one {
    justify-self: flex-end;
  }

  .hero-banner .img-holder.two {
    margin-block-start: 100px;
  }

  .hero-shape-1 {
    display: block;
    position: absolute;
    bottom: -40px;
    left: -10px;
  }



  /**
     * ABOUT
     */


  .about-banner {
    padding: 60px;
    padding-inline-end: 0;
  }

  .about-banner .img-holder {
    max-width: max-content;
    margin-inline: auto;
  }

  .about-shape-1 {
    display: block;
    top: -40px;
    right: -70px;
  }


/**
   * responsive for large than 992px screen
   */

@media (min-width: 992px) {

  /**
     * CUSTOM PROPERTY
     */

  :root {

    /**
       * typography
       */

    --fs-1: 5.5rem;
    --fs-2: 4.5rem;

  }



  /**
     * REUSED STYLE
     */

  .container {
    max-width: 960px;
  }

  .grid-list {
    grid-template-columns: repeat(4, 1fr);
  }

  :is(.course, .blog) .grid-list {
    grid-template-columns: repeat(3, 1fr);
  }



  /**
     * HERO
     */

  .hero .container {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    display: grid;
  }

  .hero .section-title,
  .hero-text {
    text-align: left;
  }

  .hero .btn {
    margin-inline: 0;
  }



  /**
     * ABOUT
     */

  .about .container {
    grid-template-columns: 1fr 0.6fr;
    align-items: center;
    gap: 60px;
  }



  /**
     * VIDEO
     */

  .video-banner {
    max-width: 75%;
    margin-inline: auto;
  }



/**
   * responsive for large than 1200px screen
   */

@media (min-width: 1200px) {

  /**
     * CUSTOM PROPERTY
     */

  :root {

    /**
       * typography
       */

    --fs-1: 6.5rem;

    /**
       * spacing
       */

    --section-padding: 120px;

  }



  /**
     * REUSED STYLE
     */

  .container {
    max-width: 1185px;
  }

  .shape {
    display: block;
  }

  .about-content,
  .video-card,
  .blog {
    position: relative;
  }



  /**
     * HEADER
     */

  .header-action-btn:last-child,
  .navbar .wrapper,
  .overlay {
    display: none;
  }

  .header.active {
    transform: translateY(-100%);
    animation: slideIn 0.5s ease forwards;
  }

  @keyframes slideIn {
    0% {
      transform: translateY(-100%);
    }

    100% {
      transform: translateY(0);
    }
  }

  .navbar,
  .navbar.active {
    all: unset;
  }

  .navbar-list {
    display: flex;
    gap: 50px;
    padding: 0;
  }

  .navbar-item:not(:last-child) {
    border-block-end: none;
  }

  .navbar-link {
    color: var(--eerie-black-1);
    padding-block: 20px;
  }

  .header .btn {
    margin-inline-end: 0;
  }



  /**
     * HERO
     */



  .hero .container {
    gap: 75px;
  }

  .hero-shape-2 {
    top: -80px;
    z-index: -1;
  }



  /**
     * ABOUT
     */

  .about .container {
    gap: 110px;
  }

  .about-banner .img-holder {
    margin-inline: 0;
  }

  .about-shape-3 {
    top: -20px;
    left: -100px;
    z-index: -1;
  }

  .about-content {
    z-index: 1;
  }



  /**
     * VIDEO
     */

  .video-shape-1 {
    top: -95px;
    left: 0;
  }

  .video-shape-2 {
    top: -80px;
    right: 120px;
    z-index: 1;
  }



  /**
     * BLOG
     */

  .blog-shape {
    top: 0;
    left: 0;
  }

}

/* ----------v2-------- */
#article {
  width: 80px;
  padding-right: 10px;
  padding-left: 10px;
  height: 50px;

}

#article a:hover {
  color: black;
}

.dropdown {
  padding: 10px;
}

ul li ul.dropdown li {
  display: block;
  text-align: center;

}

ul li ul.dropdown {
  width: 150px;
  background-color: hsl(170, 75%, 41%);
  position: relative;
  z-index: 9999;
  display: none;
  top: -20px;
  left: -10px;
}

.dropdown li {
  padding: 20;
}

ul li:hover ul.dropdown {
  transition: 1s;
  display: block;
  cursor: pointer;
  background-color: hsl(170, 75%, 41%);
  border-radius: 5px;
  justify-content: center;
}

.dropdown li a {
  margin-top: 10px;
  margin-left: 15px;
  color: #fff;
  font-size: 13px;
  transition: 0.5s;
  font-weight: 500;
}

.dropdown li a:hover {
  color: black;
}

/* ------c++ tutrials------- */
.cpp-tutorial {
  position: relative;
  top: 90px;
  display: flex;
  background-color: rgb(247, 238, 238);

}

.cpp-left-column {
  width: 300px;
  background-color: rgb(252, 244, 244);

}

.cpp-left-column h3 {
  font-weight: 500;
  color: rgb(116, 115, 115);
}

.cpp-left-column p {
  font-size: 15px;
}

.cpp-left-column p:hover {
  cursor: pointer;
}

/* .cpp-right-column ul{
   list-style: square;
  } */
.cpp-right-column {
  width: 800px;
  background-color: #fff;
  padding: 30px;
  text-align: left;
  padding-right: 40px;
  padding-top: 40px;

}

.column-box {
  display: flex;
}

.column-box p {
  margin-right: 20px;
}

.cpp-right-column h2 {
  font-weight: 500;
  font-size: 20px;
  color: rgb(16, 42, 100);
}

.cpp-right-column p {
  color: rgb(71, 68, 68);
  font-size: 16px;
  /* line-height: 2.3rem; */
}

.cpp-basic,
.control-statement {
  padding-left: 15px;
  padding-top: 15px;
  padding-bottom: 20px;
  border-bottom: 1px solid grey;
  margin: 0px 13px;
}

.cpp-basic p:hover {
  color: rgb(17, 17, 17);
}

.control-statement p:hover {
  color: rgb(17, 17, 17);
}

.control-statement p:hover {
  color: rgb(17, 17, 17);
}

/* -------ebook--------- */
.ebook-container {
  background-color: rgb(16, 17, 17);
  width: 100%;
  height: 500px;
  top: 100px;
  position: relative;
}

.ebook-container h1 {
  padding: 30px 0px 40px 0px;
  font-size: 40px;
  color: #fff;
  text-align: center;
}

.ebook-col {
  display: flex;
  justify-content: space-around;
  /* border:1px solid white; */
  margin: 30px 60px;
}

.ebook-box {
  display: flex;
  border-radius: 10px;
  background-color: #fff;
  padding: 30px 45px;
  margin: 5px;
}

.ebook-box p {
  color: rgb(17, 17, 17);
}

#svg-icon {
  color: black;
  margin-right: 10px;
  height: 50px;
  width: 40px;
  /* background-color: green; */
}









.btn {
  position: relative;
  margin: 10px;
  padding: 13px 24px;
  color: #ffffff;
  background-image: linear-gradient(90deg, #0062ff 0%, #61efff 100%);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50px;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.3s;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
    270deg,
    rgba(255, 255, 255, 0) 48%,
    rgba(255, 255, 255, 0.7) 75%,
    rgba(255, 255, 255, 0) 100%
  );
  background-repeat: no-repeat;
  transform: skew(-15deg);
  animation: bg-move 4s linear infinite;
  z-index: -1;
}

/* Let's create animation */
@keyframes bg-move {
  0% {
    background-position: -500px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}