body {
    background-color: #0a0a0a;
    color: #f3f4f6;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

.hide { display: none !important; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #171717; }
::-webkit-scrollbar-thumb { background: #00e5ff; border-radius: 3px; }

.chat-bubble-admin { background-color: #1f2937; border-left: 3px solid #00e5ff; }
.chat-bubble-user { background-color: #2d3748; border-right: 3px solid #e53e3e; }

.tab-active { border-bottom: 2px solid #00e5ff; color: #00e5ff; }
.tab-inactive { color: #9ca3af; }