:root{
    --dark:#343F56;
    --orange:#E9896A;
    --black:#2a2a2a;
    --light:#F8F5F1;
}
html{
    scroll-behavior: smooth;
}
.clear{
    clear: both;
}
*{
    box-sizing: border-box;
}
body{
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
font-size: 68.75%;
}
/*Header*/
#main-header{
    display: block;
    background-color: var(--dark);
    position: fixed;
    z-index: 1;
    width:100%;
}
#main-nav{
    display: inline-block;
    width:calc(100% - 100px);
    text-align: right;
}
.main-nav-items{
    list-style: none;
}
.main-nav-item{
    display: inline-block;
    margin: 0 1em;
    font-size: 1em; 
}
.main-nav-item:last-child{
    display: none;
}
@media only screen and (max-width: 600px){
    .main-nav-item{
        display: none;
    }
    .main-nav-item:last-child{
        display: block;
    }
}
.main-header-logo{
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    font-size: 1.2em;
}
.main-nav-item a{
    text-decoration: none;
    color: #fff;
}
.main-nav-item a:hover{
    color: #E9896A;
    transition: .6s;
}
#Classes-nav-items{
    text-align: left;
    list-style: none;
    position: absolute;
    padding: 1em;
    margin-left: 0;
    background-color: var(--dark);
    opacity: 0;
    visibility: hidden;
    transition: 300ms;
}
#Learning-English-nav-items{
    text-align: left;
    list-style: none;
    position: absolute;
    padding: 1em;
    margin-left: 0;
    background-color: var(--dark);
    opacity: 0;
    visibility: hidden;
    transition: 300ms;
}
#main-nav > ul > li:hover #Classes-nav-items{
    opacity: 1;
    visibility: visible;
    transition: 300ms;
}
#main-nav > ul > li:hover #Learning-English-nav-items{
    opacity: 1;
    visibility: visible;
    transition: 300ms;
}
.container{
    width: 100%;
    position: relative;
}

@media only screen and (max-width: 600px) {
    .container{
        padding:0 10px;
    }
    body{
        font-size: 70%;
    }
}

@media only screen and (min-width: 600px) {
    .container{
        width: 95%;
        margin: 0 auto;
    }
    body{
        font-size: 80%;
    }
}

@media only screen and (min-width: 768px) {
    .container{
        width: 90%;
        margin: 0 auto;
    }
    body{
        font-size: 90%;
    }
}

@media only screen and (min-width: 992px) {
    .container{
        width: 85%;
        margin: 0 auto;
    }
    body{
        font-size: 95%;
    }
}

@media only screen and (min-width: 1200px) {
    .container{
        width: 80%;
        margin: 0 auto;
    }
    body{
        font-size: 100%;
    }
}


/*Main*/
/*Bölüm 1: Karşılama*/
#karsilama{
    height: 40vh;
    width: 100%;
    padding-top:15em;
    background-image: url('../img/glance-over.jpg');
    background-size: cover;
    background-position: center;
    background-color: var(--orange);
    background-blend-mode: multiply;
}
@media only screen and (min-width: 768px) {
    #karsilama{
        height: 50vh;
    }
}
@media only screen and (min-width: 992px) {
    #karsilama{
        height: 60vh;
    }
}
.content{
    color: #fff;
    font-size: 1em;
    text-shadow:0px 2px 10px #000;
}
.content h1{
    color: #fff;
    font-size: 2em;
    margin: 0;
    text-align: center;
}
#karsilama p::before{
    content: none;
}
#karsilama p::after{
    content: none;
}
/*Bölüm 2: Günün Sözü*/
#gununSozu{
    text-align: center;
    background-color: var(--dark);
    padding: 1em;
    color: var(--light);
}
#gununSozu h2{
    color: var(--orange);
}
.container p::before{
    content: '\275D';
    color: var(--orange);
    font-size: larger;
}
.container p::after{
    content: '\275E';
    color: var(--orange);
    font-size: larger;
}
#gununSozu p{
    font-style: italic;
}
/*Bölüm 3: Kartlar*/
.card{
    width:100%;
    margin:0.5em auto;
    float: left;
    padding: .5em;
    text-align: center;
}
@media only screen and (min-width: 600px){
    .card{
        width:20%
    }
}
.card p::before{
    content: none;
}
.card p::after{
    content: none;
}
.card i{
    font-size: 2em;
    color: var(--orange);
}
.inner-card{
    background-color: #F8F5F1;
    border-radius: .5em;
    padding: 0.7em;
}
.inner-card :hover{
    transition: .6s;
    box-shadow: 0px 2px 15px var(--orange);
}
.btn{
    background-color: var(--orange);
    border-radius: 2em;
    border: none;
    color: #fff;
    padding: 0.5em 1.5em;
}
.btn:hover{
    border:1px solid var(--orange);
    background-color: var(--light);
    color: var(--orange);
}
/*Bölüm 4: Classes İçerikleri*/
#classesPost{
    margin: 2em auto;
}
.classesPost-left{
    height: 20em;
    background-image: url(../img/gllnce.jpg);
    background-position: center;
    background-size: cover;
    width: 100%;
    float: left;
}
.classesPost-right{
    width: 100%;
    height: 20em;
    background-color: var(--light);
    float: left;
    padding: 2em 1em;
}
@media only screen and (min-width: 600px){
    .classesPost-right, .classesPost-left{
        width:50%;
    }
}
.classesPost-right a{
    display: block;
    text-align: right;
    color: var(--orange);
}
/*Bölüm 5: Footer*/
 #main-footer{
    display: block;
    padding:2em 0;
    background-color: #343F56;
 }
 .row{
    margin: 0 auto;
    width: 100%;
 }
 .col-3{
    width: 100%;
    float: left;
 }
 @media only screen and (min-width: 600px){
    .col-3{
        width:20%;
    }
 }
 .footer-content h3{
    color: var(--orange);
    font-size: 1em;
 }
 .footer-content a{
    text-decoration: none;
    color: var(--light);
 }
 .footer-content a:hover{
    color: var(--orange);
 }
 .footer-content i{
    padding-right: .5em;
    font-size: 1.5em;
 }
 .footer-nav-items{
    list-style: none;
 }
 .footer-nav-item ul{
    list-style: disc;
    color: var(--orange);
 }
 .footer-content input{
    width: 100%;
    height: 2.5em;
 }
 .footer-content button{
    display: block;
    float: right;
 }
 #up{
    position: fixed;
    bottom: 20px;
    right: 20px;
 }
 #up i{
    color: var(--orange);
    font-size: 2em;
 }
 #up i:hover{
    transition: 1s;
    transform: scale(120%);
 }
#Skills-nav-items{
    list-style: none;
}