body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    padding: 20px; 
    background-color: #f4f7f6;
}
h1 { color: #333; }
#chat-log { 
    height: 400px; 
    border: 1px solid #ccc; 
    overflow-y: scroll; 
    margin-bottom: 10px; 
    padding: 10px; 
    background: #ffffff; 
    border-radius: 5px;
}
#user-list { 
    border: 1px solid #999; 
    padding: 10px; 
    margin-top: 10px; 
    background: #fff; 
    border-radius: 5px;
}
#context-menu { 
    display:none; 
    position:absolute; 
    background:white; 
    border:1px solid #999; 
    padding:5px; 
    box-shadow: 2px 2px 5px rgba(0,0,0,0.2); 
    z-index: 1000; 
}
#context-menu div { cursor:pointer; padding:8px; border-bottom: 1px solid #eee; }
#context-menu div:hover { background-color: #f0f0f0; }
.admin-btn { 
    padding: 10px 20px; 
    background: #ff4d4d; 
    color: white; 
    border: none; 
    cursor: pointer; 
    border-radius: 4px;
}