*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}


::selection{
        background: #3b8cff;
        color: white;
    }


header{
    height: 55px;
    display: flex;
    justify-content: space-around;
    background: #dde8f6;
    align-items: center;
    border-bottom: 2.5px solid #3b8cff;
}


nav{
    width: 100%;
    display: flex;
    justify-content: space-around;
}


nav a{
    padding: 18px 24px;
    color: #0d1f3c;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s, transform 0.3s;
    font-size: 20px;
}


nav a:hover{
    color: #3b8cff;
    transform: translateY(-3px);
}


nav a.aktif{
    color: #1f5fd1;
}


.kart{
    max-width: 480px;
    padding: 36px 28px;
    background: #dde8f6;
    border-radius: 12px;
    text-align: center;
}


.foto{
    width: 190px;
    height: 230px;
border-radius: 50%;
border: 2.5px solid #3b8cff;
margin: 0 auto 18px;
object-fit: cover;
animation: belir 0.8s ease-out;
transition: transform 0.3s, box-shadow 0.3s;
}


.foto:hover {
    transform: scale(1.08);
    box-shadow: 0 0 20px #3b8cff;
}


.sosyal{
    display: flex;
    justify-content: center;
    gap: 15px;
    list-style: none;
}


.sosyal a{
    width: 54px;
    height: 54px;
    font-size: 24px;
    border-radius: 50%;
    border: 2px solid #0d1f3c;
    display: grid;
    place-items: center;
    text-decoration: none;
    color: #0d1f3c; 
}


.sosyal a:hover{color: #3b8cff;}

footer{
    height: 55px;
    background: #dde8f6;
    padding: 16px 30px;
    display: flex;
    justify-content: center;
    position: relative;
    align-items: center;
    border-top: 2.5px solid #3b8cff;
}


#iletisim { font-size: 18px;}


body {
  background-image: url("../../images/main_bg.jpg");
  background-size:  100%;
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  background-color: #071a3a;
}


main{
    flex: 1;
    display: grid;
    place-items: center;
    padding: 40px 16px;
}


h1 { margin-bottom: 8px; }
.slogan { margin-bottom: 16px; }
.kart p { margin-bottom: 24px; }


/* MOBİL | AI*/

@media (max-width: 600px) {


        body {
        background-size: cover;
        background-attachment: scroll;
    }

    nav {
        flex-wrap: wrap;
    }

    nav a {
        padding: 12px 14px;
        font-size: 14px;
    }

    header {
        height: auto;
        min-height: 55px;
    }

    footer {
        height: auto;
        min-height: 55px;
        text-align: center;
    }

    .kart {
        padding: 24px 18px;
    }

    .sosyal {
        flex-wrap: wrap;
        gap: 10px;
    }

    .sosyal a {
        width: 46px;
        height: 46px;
        font-size: 20px;
    }

}