body{
margin:0;
font-family:Arial;
background:#a9bccb;
}

/* ÜST MENÜ */
.topbar{
width:100%;
height:60px;
background:#3f7be0;
display:flex;
align-items:center;
justify-content:space-between;
padding:0 20px;
box-sizing:border-box;
}

.logo{
color:white;
font-size:20px;
font-weight:bold;
text-decoration:none;
}

.menu{
display:flex;
gap:35px;
}

.menu a{
color:white;
text-decoration:none;
font-size:16px;
font-weight:bold;
}

/* POPUP */
.popup{
position:fixed;
top:-300px;
left:50%;
transform:translateX(-50%);
width:350px;
background:white;
padding:25px;
border-radius:20px;
box-shadow:0 10px 30px rgba(0,0,0,0.3);
text-align:center;
z-index:99999;
animation:popupIn 1s forwards;
}

@keyframes popupIn{
to{
top:90px;
}
}

.popup button{
padding:8px 15px;
border:none;
margin:5px;
cursor:pointer;
}

.popup .yes{
background:#3f7be0;
color:white;
}

.popup .no{
background:#ddd;
}