@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@200;300;400;500;600&display=swap');

:root{
    --main-color:#8e44ad;
    --red:#e74c3c;
    --oragen:#f39c12;
    --white:#fff;
    --black:#2c3e50;
    --light-color:#888;
    --light-bg:#eee;
    --border:.1rem solid rgba(0,0,0,.2);
}

*{
     font-family: 'Nunito', sans-serif;
     margin: 0; padding: 0;
     box-sizing: border-box;
     outline: none; border: none;
     text-decoration: none;
}

*::selection{
    background-color: var(--main-color);
    color: #fff;
}

*::-webkit-scrollbar{
    height: .5rem;
    width: 1rem;
}

*::-webkit-scrollbar-track{
    background-color: transparent;
}

*::-webkit-scrollbar-thumb{
    background-color: var(--main-color);
}

html{
    font-size: 62.5%;
    overflow-x: hidden ;
}

body{
    background-color: var(--light-bg);
    padding-left: 30rem;
}

body.dark{
    --white:#222;
    --black:#fff;
    --light-color:#aaa;
    --light-bg:#333;
    --border:.1rem solid rgba(255,255,255,.2);
}

body.active{
    padding-left: 0;  
}
section{
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.btn,
.option-btn,
.delete-btn,
.inline-btn,
.inline-option-btn,
.inline-delete-btn{
    border-radius: .5rem;
    padding: 1rem 3rem;
    font-size: 1.8rem;
    color: #fff;
    margin-top: 1rem;
    text-transform: capitalize;
    cursor: pointer;
    text-align: center;
}

.btn,
.option-btn,
.delete-btn{
    display: block;
    width: 100%;
}

.inline-btn,
.inline-option-btn,
.inline-delete-btn{
    display: inline-block;   
}

.btn,
.inline-btn{
    background-color: var(--main-color);
}

.option-btn,
.inline-option-btn{
    background-color: var(--oragen);
}

.delete-btn,
.inline-delete-btn{
    background-color: var(--red);
}

.btn:hover,
.option-btn:hover,
.delete-btn:hover,
.inline-btn:hover,
.inline-option-btn:hover,
.inline-delete-btn:hover{
    background-color: var(--black);
    color: var(--white);
}

.flex-btn{
    display: flex;
    gap: 1rem;

}

.heading{
    padding-bottom: 1.8rem;
    border-bottom: var(--border);
    font-size: 2.5rem;
    color: var(--black);
    text-transform: capitalize;
    margin-bottom: 2rem;
}
.header{
    background-color: var(--white);
    border-bottom: var(--border);
    position: sticky;
    top: 0; left: 0; right: 0;
    z-index: 1000;
}

.header .flex{
    padding: 1.5rem 2rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header .flex .logo{
    font-size: 2.5rem;
    color: var(--black);
    font-weight: bolder;
}

.header .flex .search-form{
    width: 50rem;
    border-radius: .5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1.5rem 2rem;
    background-color: var(--light-bg);
}

.header .flex .search-form input{
    width: 100%;
    background:none;
    font-size: 2rem;
    color: var(--black);
}

.header .flex .search-form button{
    font-size: 2rem;
    color: var(--black);
    cursor: pointer;
    background: none;
}

.header .flex .search-form button:hover{
    color: var(--main-color);
}

.header .flex .icon div{
    font-size: 2rem;
    color: var(--black);
    border-radius: .5rem;
    height: 4.5rem;
    cursor: pointer;
    width: 4.5rem;
    line-height: 4.4rem;
    background-color: var(--light-bg);
    text-align: center;
    margin-left: .5rem;
}
.header .flex .icon div:hover{
    background-color: var(--black);
    color: var(--white);
}

#search-btn{
    display: none;
}

.header .flex .profile{
    position: absolute;
    top: 120%; right: 2rem;
    background-color: var(--white);
    border-radius: .5rem;
    padding: 2rem;
    text-align: center;
    width: 30rem;
    transform: scale(0);
    transform-origin: top right;
    transition: .2s linear;
}

.header .flex .profile.active{
    transform: scale(1);
}

.header .flex .profile img{
    height: 10rem;
    width: 10rem;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: .5rem;
}

.header .flex .profile h3{
    font-size: 2rem;
    color: var(--black);
}

.header .flex .profile span{
    color: var(--light-color);
    font-size: 1.6rem;
}

.side-bar{
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    width: 30rem;
    background-color: var(--white);
    border-right: var(--border);
    z-index: 1200;
}

.side-bar .close-side-bar{
    text-align: right;
    padding: 2rem;
    padding-bottom: 0;
    display: none;
}

.side-bar .close-side-bar i{
    height: 4.5rem;
    width: 4.5rem;
    line-height: 4.4rem;
    font-size: 2.5rem;
    color: #fff;
    cursor: pointer;
    background-color: var(--red); 
    text-align: center;
    border-radius: .5rem;
}

.side-bar .close-side-bar i:hover{
    background-color: var(--black);
}
.side-bar .profile{
    padding:3rem 2rem;
    text-align: center;
}

.side-bar .profile img{
    height: 10rem;
    width: 10rem;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: .5rem;
}

.side-bar .profile h3{
    font-size: 2rem;
    color: var(--black);
}

.side-bar .profile span{
    color: var(--light-color);
    font-size: 1.6rem;
}

.side-bar .navbar{
    margin-top: 1rem;
}

.side-bar .navbar a{
    display: block;
    padding: 2rem;
    margin: .5rem 0;  
    font-size: 1.8rem;  
}

.side-bar .navbar a i{
    color: var(--main-color);
    margin-right: 1.5rem;
    transition: .2s linear;
}

.side-bar .navbar a span{
    color: var(--light-color);
}

.side-bar .navbar a:hover{
    background-color: var(--light-bg);
}

.side-bar .navbar a:hover i{
    margin-right: 2.5rem;
}


.side-bar.active{
    left: -31rem;
}

.btn-container {
  text-align: center;
  margin-top: 10px;
}

.red-btn {
  color: red;
  font-weight: bold;
  text-decoration: none;
  font-size: 1.1rem;
}


.quick-select .box-container{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(27.5rem, 1fr));
    gap: 1.5rem;
    align-items: flex-start;
    justify-content: center;
}

.quick-select .box-container .box{
    border-radius: .5rem;
    background-color: var(--white);
    padding: 2rem;
}

.quick-select .box-container .box .title{
    font-size: 2rem;
    color: var(--black);

}

.quick-select .box-container .box p{
    line-height: 1.5;
    padding-top: 1.5rem;
    color: var(--light-color);
    font-size: 1.8rem;
}

.quick-select .box-container .box p span{
    color: var(--main-color);
}

.quick-select .box-container .tutor{
    text-align: center;
}

.quick-select .box-container .tutor p{
    padding-bottom: 1rem;
}

.quick-select .box-container .box .flex{
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 2rem;
}

.quick-select .box-container .box .flex a{
    padding: 1rem;
    border-radius: .5rem;
    font-size: 1.6rem;
    background-color: var(--light-bg);
}

.quick-select .box-container .box .flex a I{
    margin-right: 1rem;
    color: var(--black);   
}

.quick-select .box-container .box .flex a span{
    color: var(--light-color);
}

.quick-select .box-container .box .flex a:hover{
    background-color: var(--black);
}

.quick-select .box-container .box .flex a:hover i{
    color: var(--white);
}

.quick-select .box-container .box .flex a:hover span{
    color: var(--white);
}

.courses .box-container{
    display: grid;
    grid-template-columns: repeat(auto-fit ,minmax(30rem, 1fr));
    gap: 1.5rem;
    align-items: flex-start;
    justify-content: center;
}

.courses .box-container .box{
    border-radius: .5rem;
    background-color: var(--white);
    padding: 2rem;
}

.courses .box-container .box .tutor{
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap:2rem;
}

.courses .box-container .box .tutor img{
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    object-fit: cover;
}

.courses .box-container .box .tutor h3{
    font-size: 2rem;
    color: var(--black);
    margin-bottom: .2rem;
}

.courses .box-container .box .tutor span{
    font-size: 1.5rem;
    color: var(--light-color);
}

.courses .box-container .box .thumb{
    width: 100%;
    border-radius: .5rem;
    height: 20rem;
    object-fit: cover;
}

.courses .box-container .box .title{
    font-size: 2rem;
    color: var(--black);
    margin-top: .5rem;
    padding: .5rem 0;
}

.courses .more-btn{
    margin-top: 2rem;
    text-align: center;
}

.about .row{
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.about .row .image{
    flex: 1 1 40rem;
}

.about .row .image img{
    width: 100%;
    height: 50rem;
    border-radius: 1.5rem;
    object-fit: cover;
}

.about .row .content{
    flex: 1 1 40rem;
    text-align: center;
}

.about .row .content h3{
    font-size: 2.5rem;
    color: var(--black);
}
.about .row .content h2{
    font-size: 2rem;
    color: var(--main-color);
}

.about .row .content p{
    line-height: 1;
    font-size: 1.5rem;
    color: var(--light-color);
    padding: 1rem 0;
}
.about .box-container{
    margin-top: 3rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.about .box-container .box{
    flex: 1 1 25rem;
    display: flex;
    background-color: var(--white);
    border-radius: .5rem;
    padding: 2rem;
    align-items: center;
    gap: 2rem;
}

.about .box-container .box i{
    font-size: 3rem;
    color: var(--black);
}

.about .box-container .box h3{
    color: var(--main-color);
    font-size: 2.5rem;
    margin-bottom: .2rem;
}
.about .box-container .box span{
    font-size: 1.6rem;
    color: var(--light-color);
}

.reviews .box-container{
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
   gap:1.5rem;
   justify-content: center;
   align-items: flex-start;
}

.reviews .box-container .box{
   border-radius: .5rem;
   background-color: var(--white);
   padding: 2rem;
}

.reviews .box-container .box p{
   line-height: 1.7;
   font-size: 1.7rem;
   color: var(--light-color);
}

.reviews .box-container .box .student{
   margin-top: 2rem;
   display: flex;
   align-items: center;
   gap: 1.5rem;
}

.reviews .box-container .box .student img{
   height: 5rem;
   width: 5rem;
   object-fit: cover;
   border-radius: 50%;
}

.reviews .box-container .box .student h3{
   font-size: 2rem;
   color: var(--black);
   margin-bottom: .3rem;
}

.reviews .box-container .box .student .stars{
   font-size: 1.5rem;
   color:var(--oragen);
}


.footer{
    position: sticky;
    bottom: 0; right: 0; left: 0;
    background-color: var(--white);
    border-top: var(--border);
    padding:2.5rem 2rem;
    text-align: center;
    color: var(--black);
    font-size: 2rem;
    margin-top: 2rem;
    z-index: 1000;
}

.footer span{
    color: var(--main-color);
}

.playlist .row{
    display: flex;
    align-items: flex-end;
    gap: 1.5rem;
    flex-wrap: wrap;
    padding: 2rem;
    background-color: var(--white);
}

.playlist .row .col{
    flex: 1 1 40rem;
}

.playlist .row .col .save-list button{
    font-size: 2rem;
    border-radius: .5rem;
    background-color: var(--light-bg);
    padding: 1.2rem 2.5rem;
    cursor: pointer;
    margin-bottom: 2rem;
}

.playlist .row .col .save-list button i{
    color: var(--black);
    margin-right: 1rem;
}

.playlist .row .col .save-list button span{
    color: var(--light-color);
}

.playlist .row .col .save-list button:hover{
    background-color: var(--black);
}

.playlist .row .col .save-list button:hover i{
    color: var(--white);
}

.playlist .row .col .save-list button span{
    color: var(--white);
}

.playlist .row .col .thumb{
    width: 100%;
    height: 50rem;
    border-radius: .5rem;
    object-fit: contain;
}

.playlist .row .col .tutor{
    display: flex;
    align-items: center;
    gap: 1.7rem;
}

.playlist .row .col .tutor img{
    height: 7rem;
    width: 7rem;
    border-radius: 50%;
    object-fit: cover;
}

.playlist .row .col .tutor h3{
    font-size: 2rem;
    color: var(--black);
    margin-bottom: .2rem;
}

.playlist .row .col .tutor span{    
    color: var(--main-color);
    font-family: 1.5rem;
}

.playlist .row .col .details{
    padding-top: 1.5rem;
}

.playlist .row .col .details h3{
    font-size: 2rem;
    color: var(--black);
}

.playlist .row .col .details p{
    padding: 1rem 0;
    line-height: 2;
    color: var(--light-color);
    font-size: 1.7rem;
}


















/* Media queries */
@media (max-width:1200px){

    body{
        padding-left: 0;
    }

    .side-bar{
        transition: .2s linear;
        left: -30rem;
    }

    .side-bar.active{
        left: 0;
        box-shadow: 0 0 0 100vw rgba(0,0,0,rgba(0,0,0,.7));
    }

    .side-bar .close-side-bar{
        display: block;
    }
}

@media (max-width:991px){
    html{
        font-size: 55%;
    }
}

@media (max-width:768px){

    #search-btn{
        display: inline-block;
    }

    .header .flex .search-form{
        position: absolute;
        top:99%; left: 0; right: 0;
        width: auto;
        border-top: var(--border);
        border-bottom: var(--border);
        background-color: var(--white);
        clip-path: polygon(0 0,100% 0,100% 0, 0 0);
        transition: .2s linear;
    }

    .header .flex .search-form.active{
        clip-path: polygon(0 0,100% 0 , 100% 100% , 0 100%);
    }
}

@media (max-width:450px){
    html{
        font-size: 50%;
    }

    .heading{
        font-size: 2rem;
    }

    .flex-btn{
        flex-flow: column;
        gap: 0;
    }

    .about .row .image img{
        height: auto;
    }
}