body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f3f4f6; }
.tab-active { border-bottom: 2px solid #3b82f6; color: #3b82f6; background-color: white; }
.prose img { max-width: 100%; height: auto; border-radius: 0.5rem; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #c1c1c1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #a8a8a8; }