*{
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
}

:root{
    --color-primary: #6c63ff;
    --color-success: #00bf8e;
    --color-warning: #f7c94b;
    --color-danger: #f75842;
    --color-danger-variant: rgba(247, 88, 66, 0.4);
    --color-white: #ffff;
    --color-light: rgba(255, 255, 255, 0.7);
    --color-black: #0000;
    --color-bg: #1f2641;
    --color-bg1: #2e3267;
    --color-bg2: #424890;


    --container-width-lg: 76%;
    --container-width-md: 90%;
    --container-width-sm: 94%;

    --transition: all 400ms ease;
}

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

.nav__menu {
    display: flex;
    list-style: none;
}


.link {
    position: relative;
    color: #f7f7f7;
    text-decoration: none;
    padding: 7px 0;
}

.link::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 0%;
    height: 2px;
    background: transparent;
    transition: all 250ms ease-in-out;
  }

.link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0%;
    height: 2px;
    background: #ff2727ce;
    transition: all 250ms ease-in-out;
}

.link:hover::before, .link:hover::after {
    width: 100%;
    left: 0;
}

html{
    scroll-behavior: smooth;
}

body{
    font-family: 'Montserrat', sans-serif;
    line-height: 1.7;
    color: white;
    background: var(--color-bg);
}

.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: var(--color-white);
}

img{
    width: 100%;
    display: block;
    object-fit: cover;
}

.btn{
    display: inline-block;
    background: var(--color-white);
    color: var(--color-black);
    padding: 1rem 2rem;
    border: 1px solid transparent;
    font-weight: 500;
    transition: var(--transition);
}

.btn:hover{
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-primary{
    background: var(--color-danger);
    color: var(--color-white);
}

nav{
    background: transparent;
    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);
    transition: 0.5s ease-in-out;
}

.nav_container{
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav button{
    display: none;
}

.nav__menu{
    display: flex;
    align-items: center;
    gap: 4rem;
}

.nav__menu a{
    font-size: 0.9rem;
    transition: var(--transition);
}

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: 1rem 0 2.4rem;
}

.header__left span{
    color: var(--color-primary);
}

.categories{
    background: var(--color-bg1);
    height: 32rem;
}

.categories .btn{
    margin-left: 7.9rem;
}

.categories h1{
    line-height: 1;
    margin-bottom: 3rem;
    margin-left: 7.9rem;
}

.categories__container{
    display: grid;
    grid-template-columns: 40% 60% ;
    gap: 1rem;
}

.categories__left p{
    margin: 1rem 0 3rem;
    margin-left: 7.9rem;
    margin-right: 2rem;
}

.categories__right{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    margin-right: 3rem;
}

.category{
    background: var(--color-bg2);
    padding: 1.9rem;
    border-radius: 2rem;
    transition: var(--transition);
}

.category:hover{
    box-shadow: 0 3rem 3rem rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.category:nth-child(2) .category__icon{
    background: var(--color-danger);
}

.category:nth-child(3) .category__icon{
    background: var(--color-success);
}

.category:nth-child(4) .category__icon{
    background: var(--color-warning);
}

.category:nth-child(5) .category__icon{
    background: var(--color-success);
}

.category:nth-child(6) .category__icon{
    background: var(--color-primary);
}

.category__icon{
    background: var(--color-primary);
    padding: 0.7rem;
    border-radius: 0.9rem;
}

.category h5{
    margin: 2rem 0 1rem;
}

.category p{
    font-size: 0.85rem;
}

.courses{
    margin-top: 10rem;
}

.courses__container{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.course {
    background: var(--color-bg1);
    text-align: center;
    border: 1px solid transparent;
}

.course:hover{
    background: transparent;
    border-color: var(--color-primary);
    transition: var(--transition);
}

.course__info{
    padding: 2rem;
}

.course__info p{
    margin: 1.2rem 0 2rem;
    font-size: 0.9rem;
}

.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-bg1);
}

.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__container{
    max-width: 1170px;
    margin: auto;
}

.row{
    display: flex;
    flex-wrap: wrap;
}

ul{
    list-style: none;
}

.footer{
    background: var(--color-bg2);
    padding: 48px 0;
}

.footer-col{
    width: 25%;
    padding: 0px 15px;
    margin-left: 95px;
}

.footer-col h4{
    font-size: 18px;
    color: white;
    text-transform: capitalize;
    margin-bottom: 35px;
    font-weight: 500;
    position: relative;
}

.footer-col h4::before{
    content: "";
    position: absolute;
    left: 0;
    bottom: -10px;
    background-color: var(--color-primary);
    height: 2px;
    box-sizing: border-box;
    width: 50px;
}

.footer-col ul li:not(last-child){
    margin-bottom: 10px;
}

.footer-col ul li a{
    font-size: 16px;
    text-transform: capitalize;
    color: white;
    text-decoration: none;
    font-weight: 300;
    color: #bbbbbb;
    display: block;
    transition: all 0.3s ease;
}

.footer-col ul li a:hover{
    color: white;
    padding-left: 8px;
}

.footer-bottom{
    background: var(--color-bg2);
    width: 100%;
    margin-top: 30px ;
    text-align: center;
}
.footer-bottom p{
    font-size: 14px;
    word-spacing: 2px;
    text-transform: capitalize;
}
.footer-bottom span{
    opacity: .4;
    font-weight: 200;
}
 
.divider{
    width: 95%;
    height: 1px;
    margin-right: auto;
    margin-left: auto;
    margin-top: 20px;
    margin-bottom: 19px;
    background-color: var(--color-primary);
}

::-webkit-scrollbar{
    width: 12px;
}

::-webkit-scrollbar-thumb{
    background: linear-gradient(transparent,#30ff00);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover{
    background: linear-gradient(transparent,#00c6ff);
    border-radius: 6px;
}