*{
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    text-decoration: none ;
    list-style: none;
    box-sizing: border-box;
}
 :root{
    --color-primary : #6c63ff;
    /* --color-primary : #F3BD00; */

    --color-success : #00bf8e;
    --color-warning : #f7c94b;
    --color-danger : #f75842;
    --color-danger-variant :rgba(247,88,66,0.4);
    --color-white : #fff;
    --color-light : rgba(255,255,255,0.7);
    --color-black : #000;
    --color-bg : #1f2641;
    /* --color-bg : #0b0b0b; */

    --color-bg1 : #2e3267;
    /* --color-bg1 : #222223; */

    --color-bg2 : #424890;
    /* --color-bg2 : #3f3f41; */

    
    --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;
    color: var(--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;
 }
 .whatsapp img{
    width: 60px;
    position: fixed;
    bottom: 13px;
    right: 13px;
    z-index: 100;
}
.whatsapp img:hover{
    filter: saturate(0.5);
}
 
 .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);
 }

 /* ========================navbar======================= */
 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);
}

.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: 1.3rem;
}

.nav_menu a{
    font-size: 0.9rem;
    transition: var(--transition);
}
.nav_menu a:hover {
    color: var(--color-bg2); 
}

/* =======================================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;

}

.header_left p{
    margin: 1rem 0 2.4rem;
}
.maindiv {
    width: 29%;
    height: 189px;
    position: absolute;
    left: 72%;
    top: 46%;
    transform: translate(-50%, -50%);
    background-image: url(navratri.jpg);
    background-size: 100% 100%;
    box-shadow: 1px 2px 10px 5px white;
    animation: slider 16s infinite linear;
}

@keyframes slider {
    0% {
        background-image: url(navratri.jpg);
    }

    25% {
        background-image: url(choose-us-image-02.png);
    }
    50%{
        background-image: url(aks.jpg);
    }

    75% {
        background-image: url(choose-us-image-01.png);
    }
}

/* ===================================CATEGORIES=================================== */
.categories { 
    background: var(--color-bg1);
    height: 29rem;
}
.categories h1{
    line-height: 1;
    margin-bottom: 3rem;
}

.categories_container{
    display: grid;
    grid-template-columns: 40% 60%;
    gap: 4rem;
}

.categories_left{
    margin-left: 2rem;
}

.categories_left p{
    margin: 1rem 0 3rem;
}

.categories_right{
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 1.2rem;
}
.category{
    background: var(--color-bg2);
    padding: 1.5rem;
    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_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===================================== */

.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;
    transition: var(--transition);

}

.course:hover{
    background: transparent;
    border-color: var(--color-primary);
}
.course_info{
    padding: 2rem;
}

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

/* =======================================FAQS======================================= */

.faqs{
    background: var(--color-bg1);
    box-shadow: inset 0 0 3rem rgba(0,0,0,0.5);
}
.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_container{
    overflow: hidden;
    position: relative;
    margin-bottom: 5rem;
}
.testimonial{
    padding-top: 2rem;
}
.avatar{
    height: 6rem;
    width: 6rem;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1rem;
    border: 1rem solid var(--color-bg1);
    filter: saturate(0);
}
.testimonial:hover .avatar{
    filter: saturate(1);
}
.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{
    background: var(--color-bg1);
    padding-top: 5rem;
    font-size: 0.9rem;
}
.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: 0.7rem 0 ;
    border-top: 1px solid var(--color-bg2);
}


@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;
    }
    nav button{
        display: inline-block;
        background: transparent;
        font-size: 1.8rem;
        color: var(--color-white);
        cursor: pointer;
    }
    nav button#close-menu-btn{
          display: none;
    }
    .nav_menu{
        position: fixed;
        top: 4rem;
        right: 2%;
        height: fit-content;
        width: 18rem;
        flex-direction: column;
        gap: 0;
        display: none;
    }
    .nav_menu li{
        width: 70%;
        height: 3.8rem;
        animation: animateNavItems 400ms 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: 400ms;
    }
    .nav_menu li:nth-child(4){
        animation-delay: 600ms;
    }
    .nav_menu li:nth-child(5){
        animation-delay: 800ms;
    }
    .nav_menu li:nth-child(6){
        animation-delay: 1000ms;
    }
    .nav_menu li:nth-child(7){
        animation-delay: 1200ms;
    }
    @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-primary);
        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{
    height: 52vh;
    margin-bottom: 4rem;
   }
   .header_container{
    gap: 0;
    padding-bottom: 3rem;
   }
   .categories{
    height: auto;
   }
   .categories_container{
    grid-template-columns: 1fr;
    gap: 3rem;
   }
   .categories_left{
    margin-right: 0;
   }
   
   .courses{
    margin-top: 0;
   }
   .courses_container{
    grid-template-columns: 1fr 1fr;
   }


   .faqs_container{
    grid-template-columns: 1fr;
   }
   .faq{
    padding: 1.5rem;
   }


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

}

@media screen and (max-width:600px) {
    .container{
        width: var(--container-width-sm);

    }
    .nav_menu{
        right: 3%;
    }
    header{
        height: 100vh;
    }
    .header_container{
        grid-template-columns: 1fr;
        text-align:center;
        margin-top: 0;
    }
    .header_left p{
        margin-bottom: 1.3rem;
    }
    .maindiv{
        width: 84%;
        height: 199px;
        left: 50%;
        top: 70%;
    }
    .categories_right{
        grid-template-columns: 1fr 1fr;
        gap: 0.7rem;
    }


    .category{
        padding: 1rem;
        border-radius: 1rem;
    }
    .category_icon{
        margin-top: 4px;
        display: inline-block;
    }
    .courses_container{
        grid-template-columns: 1fr;
    }
    .testimonial_body{
        padding: 1.2rem;
    }
    .footer_container{
        grid-template-columns:1fr;
        text-align: center;
        gap: 2rem;
    }
    .footer_1 p {
        margin: 1rem auto;
    }
    .footer_socials{
        justify-content: center;
    }
}