* {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

header {
    height: 15vh;
    background-color: rgb(0, 0, 0);
    display: flex;
}

.logo {
    width: 10vw;
    padding: 2%;
    margin-left: 3%;
}

ul {
    display: flex;
    list-style: none;
    font-size: large;
    font-weight: 400px;
    margin-top: 40px;
    margin-left: 25%;

}

li {
    margin-left: 4vw;
}

ul li a {
    color: white;
    text-decoration: none;
}

a:hover {
    color: rgb(253, 7, 7);
}


button {
    height: 5vh;
    width: 10vw;
    background-color: rgb(253, 7, 7);
    margin-left: 3%;
    color: white;
    font-weight: 700;
    font-size: medium;
    margin-top: 35px;
}

#searchbutton {
    width: 3vw;
    height: 5vh;
    padding: 5px;
    margin-left: 2%;
    color: white;
    background-color: gray;
    border-radius: 50%;
}

button:hover {
    background-color: black;
    border: 2px solid white;
}

#searchbutton:hover {
    background-color: black;
    border: 2px solid white;
}


main {
    height: 150vh;
    border-top: 2px solid white;
    background: #d92121;
    color: white;
    background: linear-gradient(198deg, rgba(217, 33, 33, 1) 7%, rgba(0, 0, 0, 1) 67%);
}

.container {
    width: 100%;
    display: flex;
    gap: 60px;
    margin-top: 70px;
    font-size: 2.5em;
    font-weight: 500;


}

.container-a {
    width: 50vw;
    padding: 20px;
    margin-top: 10px;
    margin-left: 50px;
}

.image {
    width: 30vw;
}

.line {
    width: 60vw;
    margin: auto;
    color: white;
    margin-top: 100px;
}

.container-2 {
    display: flex;
    gap: 45px;
    margin-left: 65px;
}

.container-c {
    width: 25vw;
    padding: 20px;
    margin-top: 100px;
    margin-left: 50px;
    font-size: 1.2em;
    font-weight: 500;
}

.container-d {
    width: 50vw;
    height: 30vh;
    padding: 30px;
    margin-top: 75px;
    font-size: 1.3em;
    font-weight: 500;
}

.container-d p {
    margin-top: 25px;
}

.box {
    height: 150vh;
    box-sizing: border-box;
    margin-top: 100px;
    display: flex;

}

.filters {
    border: 2px solid black;
    width: 20vw;
    height: 90vh;
    margin-left: 50px;
}

.filterbox {
    border: 2px solid black;
    height: 45vh;
}

.aboutfilter {
    border: 2px solid black;
    height: 45vh;
}

.courses {
    display: ;
}

.coursebox {
    background-color: rgba(220, 220, 220, 0.753);
    height: 45vh;
    width: 73vw;
    font-size: 22px;
    display: flex;
    
    box-sizing: border-box;
    padding: 20px 20px;
    margin-bottom: 20px;
    
    margin-left: 20px;
}

.courseimage {
    align-content: center;
    width: 15vw;
    box-sizing: border-box;
    border-right: 3px solid gainsboro;
    padding: 30px;
    height: 35vh;
}

#courselogo {
    width: 10vw;
}

.aboutcourse {
    width: 35vw;
    height: 30vh;
    padding: 15px;

    box-sizing: border-box;
    border-right: 3px solid gainsboro;

}

.aboutcourse h3 {
    margin-bottom: 20px;
}

#downlodeviwe {
    width: 15vw;
    height: 30vh;
    padding: 100px 50px;
    box-sizing: border-box;
}

.viewmore{
    color: rgb(253, 7, 7); 
    display:inline-block;
    width:225px;
    height: 40px;
    text-align: center;
    box-sizing: border-box;
    font-size: 25px;
      background-color: white;
    border: 1px solid  rgb(253, 7, 7);
}

.downlodebutton{
   width: 225px;
   box-sizing: border-box;
   margin-top: 20px;
   height: 40px;
   padding: 4px;
   background-color: rgb(253, 7, 7);
   text-align: center;
    border: 1px solid  rgb(253, 7, 7);
}

.downlodebutton a {
    text-decoration: none;
    color: white;
}

.downlodebutton:hover{
    color:rgb(253, 7, 7);
    background-color: white;
}

.downlodebutton a:hover{
    color: rgb(253, 7, 7);
}
         
.pagenumber{
    width: 900px;
    box-sizing: border-box;
}

.selected{
    color: white;
    background-color: rgb(253, 7, 7);
    width: 25px;
    text-align: center;
}

.active{
    text-align: center;
    width: 25px;

}
.active:hover{
    color: white;
    background-color: rgb(253, 7, 7);
}

.next{
    width: 50px;
    text-align: center;
}

.next:hover{
    color: white;
    background-color: rgb(253, 7, 7);
}