*{
    margin: 0;
     padding: 0;
     border: 0;
     outline: 0;
     text-decoration: none;
     list-style: none;
     box-sizing: border-box;
 }
 :root{
     --color-primary: hsl(336, 99%, 52%);
     --color-success:#bf0073;
     --color-warning:#cd220c;
     --color-danger:#f75842;
     --color-danger-variant:rgba(220, 5, 5, 0.105);
     --color-white:#fff;
     --color-light:rgba(255,255,255,0.7);
     --color-black:rgb(11, 6, 6);
     --color-bg:#df28ae;
     --color-bg1:#ee75b1;
     --color-bg2:#429045;
 
     --container-width-lg:80%;
     --container-width-md:90%;
     --container-width-sm:94%;
 
     --transition:all 400ms ease;
 
 }
  body{
     font-family: "Montserrat", sans-serif;
     line-height: 1.7;
     /* description in box  */
     color:black;
     /* body whole background */
     background:white;
  }
  .container{
   width: var(--container-width-lg);
   margin: 0 auto;
  }
 
  section{
     padding: 6rem 0;
  }
 
  section h2{
     text-align: center;
     margin-bottom: 4rem;
  }
  h1,h2,h3,h4,h5{
     line-height: 1.2;
  }
  h1{
     font-size: 2.4rem;
  }
  h2{
     font-size: 2rem;
  }
 
 h3{
     font-size: 1.6rem;
 }
 h4{
     font-size: 1.3rem;
 }
 a{
     color:white;
     /* home about  */
 }
 img{
     width:100%;
    display: block;
     object-fit:cover ;
     
 }
 .btn{
 display: inline-block;
 background:var(--color-bg1);
 color:var(--color-bg);
 padding: 1rem 2rem;
 border: 1px solid transparent;
 font-weight:500;
 transition: var(--color-black);
 
 }
 .btn:hover{
   /* learn more back color */
     background:pink;
     /* word color  */
     color:black;
     border-color: var(--color-black);
 
 }
 .btn-primary{
     background:black;
     /* word learn more color */
     color:var(--color-bg);
 }
  /*             NAVBAR            */
  nav{
     background:rgba(216, 6, 129, 0.82);
     /* home about color  u can do tansparent also*/
     width: 100vw;
     height: 5rem;
     position: fixed;
     top:0;
     z-index:11;
  }
  .window-scroll{
    background: var(--color-primary);
    box-shadow: 0 1rem 2rem rgba(0,0,0,0.2);
  }
  .nav__container{
     height: 100%;
     display: flex;
     justify-content: space-between;
     align-items:center;
  }
  nav button{
     display:inline-block;
  }
  .nav__menu {
     display: flex;
     align-items: center;
     gap: 4rem; 
  }
  .nav__menu a{
     font-size: 0.9rem;
     transition: var(--transition);
  }
 .nav__menu a:hover{
     color: var(--color-bg2);
     /* button hover effect */
 }
 
 /*  HEADER */
 header{
     position: relative;
     top:5rem;
     overflow: hidden;
     height: 70vh;
     margin-bottom: 5rem;
 }
 .header__container{
    display:grid;
    grid-template-columns: 1fr 1fr;
    align-items:center;
    gap:5rem;
    height:100%;
 }
 .header__left p{
    margin: 1 rem 0 2.4rem;
 }
 
 /************ CATEGORY**************/
 .categories{
    background: var(--color-primary);
    height:32rem;
 }
 .categories h1{
    line-height: 1;
    margin-bottom: 3rem;
 }
 .categories__container{
  display: grid;
  grid-template-columns: 40% 60%;
 
 }
 .categories__left{
    margin-right: 4rem;
 }
 .categories__left p{
    margin: 1rem 0 3rem;
 }
 .categories__right {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap:1.2rem;
 }
 .category{
    background:white;
    padding: 2rem;
    border-radius: 2 rem;
    transition: var(--transition);
    
 }
 .category:hover{
    box-shadow: 0 3rem 3rem rgba(153, 15, 233, 0.792);
    z-index: 1;
 }
 .category:nth-child(2).category__icon{
    background: var(--color-warning);
 }
 
 .category:nth-child(3).category__icon{
    background: var(--color-warning);
 }
 
 .category:nth-child(4).category__icon{
    background: var(--color-warning);
 }
 
 .category:nth-child(5).category__icon{
    background: var(--color-success);
 }
 
 
 
 .category__icon{
    background: var(--color-bg1);
    padding: 0.7rem;
    border-radius: 0.9rem;
 }
 .category h5{
    margin: 2rem 0 1rem;
 }
 .category p{
    font-size: 0.85rem;
 }
 /* POPULAR COURSES */
  .courses{
    margin-top:10rem;
  }
  .courses__container{
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap:2rem;
  }
  .course{
    background: rgb(156, 156, 183);
    /* popular color boxex color */
    text-align: center;
    border: 1px solid transparent;
    transition: var(--transition);
 
  }
  .course:hover{
    background: rgb(205, 205, 211);
    border-color:black;
 
  }
  .course__info{
    padding: 2 rem;
  }
  .course__info p{
    margin: 1.2rem 0 2 rem;
    font-size: 0.9rem;
  }
  
  /* <!--faqs - */
  .faqs{
    background: black;
    box-shadow: inset 0 0 3rem rgba(0,0,0, 0.5);
    color: white;
  }
  .faqs__container{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .faq{
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1.4rem;
    height: fit-content;
    background: var(--color-primary);
    cursor: pointer;
  }
 .faq h4{
    font-size: 1rem;
    line-height: 2.2;
 }
 .faq__icon{
    align-self: flex-start;
    font-size: 1.2rem;
 }
 .faq p{
    margin-top: 0.8rem;
    display: none;
 }
 .faq.open p{
    display: block;
 }
 /* testimonials */
 
 .testimonials__container{
    overflow-x: hidden;
    position: relative;
    margin-bottom: 5rem;
 
 }
 .testimonial{
    padding-top: 2rem;
 }
 .avatar{
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1rem;
    border: 1rem  solid var(--color-primary);
 }
 
 .testimonial__info{
    text-align:center;
 }
 .testimonial__body{
    background:var(--color-primary);
    padding: 2rem;
    margin-top: 3rem;
    position: relative;
 }
 
 .testimonial__body::before{
    content: "";
    display: block;
    background: linear-gradient(135deg,transparent,var(--color-primary),
    var(--color-primary)
    );
    width: 3rem;
    height: 3rem;
    position: absolute;
    left: 50%;
    top: -1.5rem;
    transform: rotate(45deg);
 }
 
 /* footer */
 footer{
    background:black;
    padding-top: 5rem;
    font-size: 0.9rem;
    color: white;
 }
 .footer__container{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 5rem;
 }
 .footer__container >div h4{
    margin-bottom: 1.2rem;
 }
 .footer__1 p{
    margin:0 0 2rem ;
 }
 footer ul li{
    margin-bottom: 0.7rem;
}
 footer ul li a:hover{
 text-decoration: underline;
 }
 .footer__socials{
    display: flex;
    gap: 1rem;
    font-size: 1.2rem;
    margin-top: 2rem;
 
 }
 .footer__copyright{
    text-align: center;
    margin-top:4rem ;
    padding: 1.2rem 0;
    border-top: 1px solid var(--color-bg);
 }
 
 /*  media queries */
 @media screen and (max-width: 1024px) {
   .container{
    width: var(--container-width-md);
   }
   h1{
    font-size: 2.2rem;
   }
   h2{
    font-size: 1.7rem;
   }
   h3{
    font-size: 1.4rem;
   }
   h4{
    font-size: 1.2rem;
   }
 
   /*  navbar */
   nav button {
    display: inline-block;
    background:transparent;
    font-size: 1.8rem;
    color:black;
    cursor: pointer;
   }
 nav button#close-menu-btn {
    display:none;
 }
 .nav__menu {
    position: fixed;
    top: 5rem;
    right: 5%;
    height: fit-content;
    width:18rem ;
    flex-direction: column;
    gap:0;
    display: none;
 }
 .nav__menu li{
    width:100%;
    height: 5.8rem;
    animation:animateNavItems 1s linear forwards ;
    transform-origin: top right;
    opacity: 0;
 }
 
 .nav__menu li:nth-child(2){
    animation-delay: 200ms;
 }
 
 .nav__menu li:nth-child(3){
    animation-delay: 300ms;
 }
 
 
 .nav__menu li:nth-child(4){
    animation-delay: 400ms;
 }
 
 
 @keyframes animateNavItems {
    0% {
       transform: rotateZ(-90deg) rotateX(90deg) scale(0.1);
    }
    100%{
       transform: rotateZ(0) rotateX(0) scale(1);
       opacity: 1;
    }
    
 }
 .nav__menu li a{
    background: var(--color-bg);
    box-shadow: -4rem 6rem 10rem rgba(0 ,0, 0,0.6);
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
 }
  .nav__menu li a:hover{
    background: var(--color-bg2);
    color:var(--color-white);
 }
  
  /*  HEADER */
  header {
    height: 52vh;
    margin-bottom: 4rem;
  }
 .header__container {
    gap: 0;
    padding-bottom: 3rem;
 }
 /* CATEGORY */
 .categories {
    height: auto;
 }
 
 .categories__container {
    grid-template-columns: 1fr;
    gap: 3rem;
 }
 
 .categories__left {
    margin-right: 0;
 }
 
  /* POPULAR COURSES */
  .courses {
    margin-top: 0;
  }
 
  .courses__container {
    grid-template-columns: 1fr 1fr ;
  }
 
 
 /* faqs */
 .faqs__container {
    grid-template-columns: 1fr;
 }
 .faq {
    padding: 1.5rem;
 }
 
 /* footer */
 
 .footer__container {
    grid-template-columns: 1fr 1fr;
 
 }
 }
 
 /* media queries phone */
 
 @media  screen and (max-width :600px) {
    .container {
       width: var(--container-width-sm);
    }
 
    /* navbar */
 .nav__menu{
    right: 3%;
 }
 /* header */
 header{
    height: 100vh ;
 }
 
 .header__container {
    grid-template-columns:1 fr ;
    text-align: center;
    margin-top:0;
 
 }
  
 .header__left p {
    margin-bottom: 1.3rem;
 }
 
 /* CATEGORIES */
 .categories__right {
    grid-template-columns: 1fr 1fr;
    gap: 0.7rem;
 }
 .category {
    padding: 1rem;
    border-radius: 1rem;
 }
 .category__icon {
    margin-top: 4px;
    display: inline-block;
 }
 
 /* popular courses */
 .courses__container {
    grid-template-columns:  1fr;
 }
 /* testimonials */
 
 .testimonial__body {
    padding: 1.2rem;
 }
 
 /* footer */
 
 .footer__container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
 }
 
 .footer__1 p {
    margin: 1rem auto ;
 }
 
 .footer__socials {
    justify-content:  center;
 }
 
 
 
 
 }