*{
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
   font-family: "Montez" , cursive;
}
:root{
    --color-primary: deeppink; 
    --color-success : #00bf8e;
    --color-warning : #f7c94b;
    --color-danger : linear-gradient(135deg, #b33674, #2a7a9a);
    --color-white : #fff;
    --color-light : rgba(255, 255, 255, 0.7);
    --color-black : #000;
    --color-bg: #ff66b2; 
    --color-bg1: #a2567e;     
    --color-bg2: pink;  
    --container-width-lg : 76%;
    --container-width-md : 90%;
    --container-width-sm : 94%;
    --transition : all 400ms ease;
}
body{
    font-family: 'Montserrat' , sans-serif;
    list-style: 1.7;
    color: var(--color-white);
    background-color: 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);
}

/* Navbar */
nav{
    background: transparent;
    width: 100vw;
    height: 5rem;
    position: fixed;
    top: 0;
    z-index: 11;
}

/* Change navbar styles on scroll using js */
.window-scroll{
    background-color: 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: 4rem;
}
.nav_menu a{
    font-size: 0.9rem;
    transition: var(--transition);
}
.nav_menu a:hover{
    color: var(--color-bg2);
}

/* Home Section */
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;
}

/* Categories */
.categories{
    background-color: var(--color-bg2);
    height: 29rem;
}
.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 2rem;
}
.categories_right{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}
.category{
    background: var(--color-bg2);
    padding: 2rem;
    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;
    color: #b33674;
}
.category p{
    font-size: 0.85rem;
    color: black;
}

/* Popular Courses */
.courses {
    margin-top: 2rem;
}
.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;
}
.cpurse_info p{
    margin: 1.2rem 0 2rem;
    font-size: 0.9rem;
}


/* Question Section */
.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;
}

/* Students Feedback*/
.testimonials_container{
    overflow: 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), var(--color-primary));
    width: 3rem;
    height: 3rem;
    position: absolute;
    left: 48%;
    top: -1.5rem;
    transform: rotate(45deg);
}
/* Footer */
footer {
    background-color:  darkmagenta;
    color: #fff;
    padding: 2rem 0;
    text-align: center;
}

/* Media Queries Tablet */
@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-color: transparent;
    font-size: 1.8rem;
    color: var(--color-white);
    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;
}

@keyframes animateNavItems {
    0%{
        transform: rotateZ(-90deg);
    }
    100%{
        transform: rotateZ(0);
    }
}
.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 */
header{
    height: 52vh;
    margin-bottom: 4rem;
}
.header_container{
    gap: 0;
    padding-bottom: 3rem;
}
/* Categories */
.categories{
    height: auto;
}
.categories_container{
    grid-template-columns: 1fr;
    gap: 3rem;
}
.categories_left{
    margin-right: 0;
}
/* Courses */
.courses{
    margin-top: 0;
}
.courses_container{
    grid-template-columns: 1fr 1fr;
}
/* Questions */
.faqs_container{
    grid-template-columns: 1fr;
}
.faq{
    padding: 1.5rem;
}
}

/* Mobile Media Quesries */
@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: 1fr;
        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;
    }
    /* Courses */
    .courses_container{
        grid-template-columns: 1fr;
    }
    /* Students */
    .testimonial_body{
        padding: 1.2rem;
    }
}