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


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


body {
    background-image: url("../../images/main_bg.jpg");
    background-size: 100%;
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: fixed;
    background-color: #071a3a;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: "Trebuchet MS", Verdana, sans-serif;
    color: #0d1f3c;
}


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;
}


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


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

#iletisim { font-size: 18px;}


/* İLETİŞİM MAİN */

.iletisim{
    width: 100%;
    max-width: 860px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}


.kutu{
    flex: 1 1 320px;
    background: #dde8f6;
    border-radius: 12px;
    padding: 28px;
}


.bilgi{
    display: flex;
    flex-direction: column;
    gap: 14px;
}


.bilgi h1{
    font-size: 28px;
}


.bilgi p{
    font-size: 15px;
    line-height: 1.5;
}


.eposta{
    color: #0d1f3c;
    font-weight: bold;
    font-size: 15px;
    text-decoration: none;
    transition: color 0.3s;
}


.eposta:hover{
    color: #1f5fd1;
}


.sosyal{
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    margin-top: auto;
}


.sosyal a{
    width: 44px;
    height: 44px;
    font-size: 20px;
    border-radius: 50%;
    border: 2px solid #0d1f3c;
    display: grid;
    place-items: center;
    text-decoration: none;
    color: #0d1f3c;
    transition: color 0.3s, transform 0.3s;
}


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


/* FORM */


.form{
    display: flex;
    flex-direction: column;
    gap: 12px;
}


.form input,
.form textarea{
    width: 100%;
    padding: 10px 12px;
    font-family: inherit;
    font-size: 14px;
    color: #0d1f3c;
    background: #fff;
    border: 2px solid #3b8cff;
    border-radius: 8px;
}


.form textarea{
    height: 140px;
    resize: vertical;
}


.form input:focus,
.form textarea:focus{
    outline: none;
    box-shadow: 0 0 8px #3b8cff;
}


.form button{
    padding: 12px;
    font-family: inherit;
    font-size: 15px;
    font-weight: bold;
    color: #fff;
    background: #1f5fd1;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}


.form button:hover{
    background: #174aa8;
    transform: translateY(-2px);
}


.uyari{
    font-size: 13.5px;
    line-height: 1.4;
    color: #b00020;
    font-weight: bold;
}



/* 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;
    }

    .kutu {
        padding: 20px;
    }

}