body {
    font-family: Arial, sans-serif;
    margin:0; padding:0;
    background:#f5f5f5;
    direction: rtl;
}
.header {
    background:#fff;
    padding:10px 20px;
    display:flex; justify-content: space-between; align-items:center;
    box-shadow:0 2px 5px rgba(0,0,0,0.1);
}
.header h1 { margin:0; font-size:24px;}
.header nav ul { list-style:none; display:flex; gap:15px;}
.header nav ul li a { text-decoration:none; color:#333; font-weight:bold;}
.feed, .chat, .profile, .admin { background:#fff; margin:20px auto; padding:15px; border-radius:8px; max-width:600px;}
.post { border-bottom:1px solid #ddd; padding:10px 0; position:relative;}
.post-header { display:flex; justify-content:space-between; margin-bottom:5px;}
button { padding:5px 10px; cursor:pointer; margin-top:5px;}
.messages { max-height:200px; overflow-y:auto; border:1px solid #ccc; padding:5px; margin-bottom:5px;}
input[type=text] { width:70%; padding:5px;}