:root{
    --borderstandart:1px solid rgb(204, 203, 203);
    --themecolor: white;
    --logocolor: #ed7e22;
    --logodark: #4e2a0c;

 }
 
 body{
    padding: 0;
    margin: 0;
    height: 1600px;
    
    
 }
 
 div.topbar{
    background-color: #d4eafa;
 }

 .topbar img {
    width: 80%;
    height: auto;
    margin: 0 auto;
    display: block;
}

.nav1  ul{
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    border-bottom: var(--borderstandart);
}

.nav1 ul a{
    text-decoration: none;
    color: rgb(116, 116, 116);
    padding: 0px 8px 2px 8px;
    font-size: 13px;
    
}

.nav1 ul :last-child a{
    color: var(--logocolor);
}

.nav1 ul li a:hover{
    color: rgb(32, 32, 32);
}

div.nav2{
    height: 100px;
    width: 100%;
    background-color: var(--themecolor);
    position: sticky;
    top: 0;
    border-bottom: var(--borderstandart);
    display: flex;
    justify-content: space-between;    
}
.nav2{
    align-items: center;
    z-index: 1;
}
.logo img {
    height: 80px;
    padding: 5px 0px 0px 25px;
}

input, button {
    padding: 5px;
    border: var(--borderstandart);
    border-radius: 5px;
    
}
input:hover{
    border: 1px solid var(--logocolor);
}
input:focus{
    border: 1px solid var(--logodark);
    outline: none;
    box-shadow: 0 0 2px var(--logodark);
}

form > button{
    height: 24px;
    width: 24px;
    background-color: var(--logocolor);
    background-image: url(img/icon/ara.svg);
    background-size: 18px 18px;
    background-repeat: no-repeat;
    background-position: center;
   }
form > button:hover{
    background-color: var(--logodark);
   }

div .giris{
    background-color: var(--logocolor);
    border: var(--borderstandart);
    width: 50px;
    height: 50px;
}

div .giris:hover{
    background-color:var(--logodark);
}

.mobilmenu{
    padding: 5px;
    border: var(--borderstandart);
    border-radius: 5px;
    margin-right: 5px;

}


.mobilmenu:focus{
   background-color: var(--logocolor);

}


.nav3 {
    
    display: flex;
    justify-content: center;
    box-sizing: border-box;
    border-bottom: var(--borderstandart);
    
    
}

.nav3 > ul {
    display: flex;
    list-style-type: none;
    padding:  0;
    margin: 0;
    width: fit-content;
    justify-content: center;  
    position: relative;  
}

.nav3 > ul > li {
    background-color: rgb(255, 255, 255);
    text-align: center;
    align-content: center;
    padding: 15px 10px;
    border-top: 2px solid transparent ;
    border-left: 2px solid transparent;
    border-right: 2px solid transparent;
    
    
}

.nav3 > ul > li:hover{
    border-top: 2px solid var(--logocolor);
    border-left: 2px solid var(--logocolor);
    border-right: 2px solid var(--logocolor);
    border-radius: 7px 7px 0px 0px;
    background-color: rgb(240, 240, 240);
}

.nav3 > ul > li:hover > a{
    color: var(--logocolor);
}



.nav3 > ul > li > a{
    text-decoration: none;
    color: rgb(46, 46, 46);
    font-size: 13px;
    font-weight: bold;
    
    
}

.kitapalt{
    position: absolute;
    width: 100%;
    top: 100%;
    left: 0px;
    padding: 15px;
    list-style-type: none;
    background-color: rgb(240, 240, 240);
    text-align: left;
    box-sizing: border-box;
    border-left: 2px solid var(--logocolor);
    border-right: 2px solid var(--logocolor);
    border-bottom: 2px solid var(--logocolor);
    border-radius: 0px 0px 7px 7px;
    display: none;

}

.nav3 ul li:hover .kitapalt{
    display: block;
}

div.s1, div.s2, div.s3, div.s4{
    display: inline-block; 
    top: 0;
    vertical-align: top;
    padding: 15px 10px 10px 0px;
    box-sizing: border-box;
}

div.s1{
    width: 17%;
}

div.s2{
    width: 22%;
}

div.s3{
    width: 27%;
}

div.s4{
    width: 32%;
}

div.s4 img{
    display: block;
    padding: 0px 0px 10px 0px;
    width: 80%;
    margin-left: auto;
    margin-right: 0;
    min-width: 250px;
}

div.s1 > div ,
div.s2 > div ,
div.s3 > div
{
    padding: 5px 0px;
}

div.s1 > div > a ,
div.s2 > div > a {
    text-decoration: none;
    color: rgb(43, 43, 43);
    display: block;
    
}

div.s3 > div >a {
    text-decoration: none;
    color: red;
    display: block;
}

div.s1 > div > a:hover ,
div.s2 > div > a:hover{
    text-decoration: underline;
    color: rgb(0, 0, 0);
}

div.s3 > div > a:hover{
    text-decoration: underline;
    color: darkred;
}

.ulasin{
   
    background-color: var(--logocolor);
    padding: 10px;
    position: fixed;
    right: 0;
    bottom: 0;
    z-index: 999;
    margin: 20px;
    border-radius: 10px;
    display: flex;
    align-content: center;
    height: 35px;  
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2)
}

.ulasin > img{
    padding: 0px 10px;
    width: 30px;
    
}

.ulasin > a{
    color: #14213D;
    padding: 0 10px 0 0;
    align-content: center;
    font-size: 19px;
    text-decoration: none;
    font-weight: bold;
}



/* Responsive Kodları !! */
@media (max-width: 1000px){
    .topbar img {
        width: 100%;
    }
    .nav3 > ul > li > a{
        font-size: 11px;
        padding: 5px 0;
    }
}

@media (max-width:830px){
    .nav1{
        display: none;
    }
    .logo img {
        height: 50px;
        padding: 0px 0px 0px 15px;
    }
     div.nav2 {
      height: 60px;
    }
     div.nav3{
        display: none;
    }
    div .giris{
    display: none;
    }
    div .mobilmenu{
    display: block;
    }
    
    div .mobilmenu:focus .nav2{
        display: block !important;
    }
}



@media (min-width:830px){

    .mobilmenu{
        display: none;
    }

}