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

body{
    background:#f5f7fb;
    color:#111;
}

.navbar{
    width:100%;
    height:80px;
    background:white;
    border-bottom:1px solid #e5e5e5;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 40px;
}

.logo{
    display:flex;
    align-items:center;
    gap:14px;
}

.logo img{
    width:46px;
    height:46px;
    border-radius:14px;
}

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

.nav-links{
    display:flex;
    gap:18px;
}

.nav-links a{
    text-decoration:none;
    color:black;
    font-weight:bold;
}

.container{
    width:100%;
    max-width:1100px;
    margin:auto;
    padding:50px 30px;
}

.card{
    background:white;
    border-radius:24px;
    padding:30px;
    margin-bottom:25px;
    box-shadow:0 5px 25px rgba(0,0,0,0.05);
}

input,
textarea{
    width:100%;
    border:none;
    background:#f5f5f5;
    padding:16px;
    border-radius:14px;
    margin-bottom:18px;
}

textarea{
    resize:none;
}

button{
    border:none;
    background:black;
    color:white;
    padding:15px 22px;
    border-radius:14px;
    cursor:pointer;
    font-weight:bold;
}

.post-link{
    text-decoration:none;
    color:black;
}

.reply{
    margin-top:15px;
    padding-top:15px;
    border-top:1px solid #eee;
}

.back{
    display:inline-block;
    margin-bottom:25px;
    text-decoration:none;
    color:#666;
    font-weight:bold;
}