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

body{
background:#f5f6fa;
}

/* HEADER */

header{
background:white;
padding:15px 60px;
display:flex;
justify-content:space-between;
align-items:center;
box-shadow:0 2px 10px rgba(0,0,0,0.08);
}

.logo{
font-size:26px;
font-weight:bold;
color:#e91e63;
}

.nav a{
margin-left:20px;
text-decoration:none;
color:#333;
font-weight:500;
}

.post-btn{
background:#e91e63;
color:white;
padding:8px 16px;
border-radius:6px;
}

/* FORM DESIGN */

.container{
display:flex;
justify-content:center;
align-items:center;
min-height:80vh;
}

.form-box{
background:white;
width:420px;
padding:40px;
border-radius:10px;
box-shadow:0 10px 25px rgba(0,0,0,0.1);
}

.form-box h2{
text-align:center;
margin-bottom:20px;
}

.form-box input{
width:100%;
padding:12px;
margin-bottom:15px;
border:1px solid #ddd;
border-radius:6px;
}

.btn{
width:100%;
background:#e91e63;
color:white;
padding:12px;
border:none;
border-radius:6px;
font-size:16px;
cursor:pointer;
}

.btn:hover{
background:#d81b60;
}

.link{
text-align:center;
margin-top:15px;
}

.link a{
color:#e91e63;
text-decoration:none;
}

/* MOBILE */

@media(max-width:600px){

header{
padding:15px;
}

.form-box{
width:90%;
}

}