: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%);

  --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);
 
  --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; 
  }

.section {
   padding-block: var(--section-padding);
  }

.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;
}

.section-title .span {
  display: inline-block;
  color: #4F84C4;
}

.btn {
  background-color: #4F84C4;
  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::before {
  inset: 0;
 background-color: rgb(23, 23, 245);
  z-index: -1;
  border-radius: inherit;
  transform: translateX(-100%);
  transition: var(--transition-2);

}

.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 {
  width: 100%;
  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: 15px;
}

.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) .section-title { 
  margin-block-end: 40px; 
}
/*-----------------------------------*\
  #HEADER
\*-----------------------------------*/
.header .btn { 
  display: none; 
}

.header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  padding-block: 12px;
  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-actions .btn.has-before{
 transition: all 0.2s ease-out;
}

.header-actions .btn.has-before:hover{
  transform: scale(1.05);
  

}



.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: #4F84C4; 
  
}

.header-action-btn .btn-badge {
  position: absolute;
  top: -10px;
  right: -10px;
  background-color: #4F84C4;
  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: 1px 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: #4F84C4;
  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);
  transition: all 0.2s ease-out;
}

.navbar-link:is(:hover, :focus) { 
  color: #4F84C4;
  transform: scale(1.05); 
}

.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;
}


.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 2.5rem;
  font-weight: 700;
  color: #4F84C4;
}

.nav__logo div {
  width: 60px;
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  font-size: 35px;
  line-height: 1rem;
  color:white;
  background-color:#4F84C4;
  border-radius: 100%;
}
/*-----------------------------------*\
  #HERO
\*-----------------------------------*/
.hero { 
  padding-block-start: calc(var(--section-padding) + 80px); 
}

.hero .container {
  display: grid;
  gap: 40px;
}

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

.hero .btn { 
  margin-inline: auto; 
  transition: all 0.2s ease-out;
}
.hero .btn:hover {
  transform: scale(1.05);
}

.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:#808080; 
}

.category .section-title { 
  color: black; 
}

.category .section-text { 
  margin-block-end: 40px; 
}
.category .card-title {
  font-size: 19px;
}

.category-card {
  padding: 50px 30px;
  text-align: center;
  border-radius: var(--radius-5);
  transition: all 0.2s ease-out;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.3);
}
.category-card:hover {
  transform: scale(1.05);
  

}
.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-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);
  transition: all 0.3s ease-out;
}

.category-card .card-badge:hover {
  transform: scale(1.15);
}
/*-----------------------------------*\
  #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 :is(.section-subtitle, .section-title, .section-text) {
  text-align: left;
}

.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: #4F84C4;
  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;
  transition: all 0.3s ease-out;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.3);
}
.course-card:hover {
  transform: scale(1.05);

}

.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: 25px; 
}

.course-card .badge {
  background-color:#4F84C4;
  max-width: max-content;
  color:white;
  line-height: 25px;
  padding-inline: 10px;
}

.course-card .card-title {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkitline-clamp:2;
  overflow: hidden;
  margin-block: 15px 8px;
  transition: var(--transition-1);
  
}

.course-card .card-title:is(:hover, :focus) { 
  color: #4F84C4; 
}

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

.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: 10px;
}

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

.course-card .card-meta-item .span {
  color: #4F84C4;
  font-size: var(--fs-7);
}

.course .btn {
  margin-inline: auto;
  margin-block-start: 60px;
  transition: all 0.2s ease-out;
}
.course .btn:hover {
  transform: scale(1.05);
}
/*-----------------------------------*\
  #FOOTER
\*-----------------------------------*/
.footer {
  background-repeat: no-repeat;
  background-color: var(--eerie-black-2);
  color: var(--gray-x-11);
  font-size: var(--fs-5);
}

.footer-top {
  display: grid;
  gap: 30px;
}

.footer-brand-text { 
  margin-block: 20px; 
}


.footer-link { 
  transition: var(--transition-1); 
  transition: all 0.2s ease-out;
}

.footer-link:is(:hover, :focus) { 
  color:#4F84C4; 
  transform: scale(1.05);
}

.footer-list-title {
  color: var(--white);
  font-family: var(--ff-league_spartan);
  font-size: var(--fs-3);
  font-weight: var(--fw-600);
  margin-block-end: 10px;
  width: max-content;
  position: relative;
  cursor: pointer;
}
.footer-list-title::after{
  content: " ";
  position: absolute;
  bottom: -5px;
  height: 2px;
  width: 70%;
  left: 0;
  background-color: #4F84C4;
}


.footer-list .footer-link { 
  padding-block: 5px; 
}

.newsletter-form { 
  margin-block: 20px 35px; 
}

.newsletter-form .input-field {
  background-color: var(--white);
  padding: 12px;
  border-radius: var(--radius-5);
  margin-block-end: 20px;
}

.newsletter-form .btn {
  min-width: 100%;
  justify-content: center;
  transition: all 0.2s ease-out;
}
.newsletter-form .btn:hover {
  transform: scale(1.05);
}

.social-list {
  display: flex;
  gap: 25px;

}

.social-link { 
  font-size: 20px;
  transition: all 0.3s ease-out ; 
}
.social-link:hover { 
  font-size: 20px; 
  color: #4F84C4;
  transform: scale(1.35);
}

.footer-bottom {
  border-block-start: 1px solid var(--eerie-black-1);
  padding-block: 30px;
}

.copyright { 
  text-align: center; 
}

.copyright-link {
  color: #4F84C4;
  display: inline-block;
}
.copyright-link:hover{
  text-decoration: none;
}

.button {
  appearance: none;
  border: none;
  outline: none;

  display: inline-block;
  background-color: transparent;
  color: #FFF;
  font-size: 20px;
  padding: 10px 15px;
  border: 1px solid;
  border-radius: 8px;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  margin: 0px 15px;
  transition: all 0.3s ease-out;
}

.button:hover {
  transform: scale(1.08);
  background-color: #4F84C4;
}

.button.large {
  font-size: 24px;
  padding: 15px 30px;
}

.popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

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

.popup-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  background-color: rgba(0, 0, 0, 0.5);
}

.popup-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  max-height: 70vh; 
  overflow-y: auto; 
  padding: 50px 30px;
  background-color: transparent;
  border: 2px solid;
  border-radius: 16px;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(20px);
}

.popup h2 {
  color: whitesmoke;
  font-size: 28px;
  font-weight: 600;
}

.popup h3 {
  color: white;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.popup p {
  color: wheat;
  font-size: 16px;
  font-weight: 400;
  margin-bottom: 15px;
}

.popup p:last-of-type {
  margin-bottom: 30px;
}
/*-----------------------------------*\
  #BACK TO TOP
\*-----------------------------------*/
.back-top-btn {
  position: fixed;
  bottom: 40px;
  right: 30px;
  background-color: #3F69AA;
  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:hover{
  background-color:#4F84C4;
}

.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) .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; 
  }

  /*STATS*/

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

  .footer-brand,
  .footer-list:last-child { 
    grid-column: 1 / 3; 
  }

  .newsletter-form {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .newsletter-form .input-field { margin-block-end: 0; }

  .newsletter-form .btn { min-width: max-content; }

}





/**
 * 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) .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) + 90px); }

  .hero .container { gap: 50px; }

  .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 { padding-block-start: 50px; }

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

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



  /**
   * FOOTER
   */

  .footer-brand,
  .footer-list:last-child { grid-column: auto; }

  .newsletter-form .btn { padding-block: 10px; }

}





/**
 * 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) .grid-list { grid-template-columns: repeat(3, 1fr); }



  /**
   * HERO
   */

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

  .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;
  }



 



  /**
   * FOOTER
   */

  .footer .grid-list { grid-template-columns: 1fr 0.6fr 0.6fr 1.2fr; }

}





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

@media (min-width: 4900px) {

  /**
   * CUSTOM PROPERTY
   */

  :root {

    /**
     * typography
     */

    --fs-1: 6.5rem;

    /**
     * spacing
     */

    --section-padding: 120px;

  }



  /**
   * REUSED STYLE
   */

  .container { max-width: 1185px; }

  .shape { display: block; }

  .about-content { 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 { padding-block-start: calc(var(--section-padding) + 120px); }

  .hero .container { gap: 80px; }

  .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; }

 




}