*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f0f13;--sidebar: #18181f;--sidebar-hover: #222230;--sidebar-active: #2a2a3a;--text: #e4e4e7;--text-dim: #71717a;--accent: #6366f1;--accent-hover: #818cf8;--border: #27272a;--human-msg: #1e1e26;--llm-msg: #1e2030;--input-bg: #1e1e26;--danger: #ef4444;--success: #22c55e;--radius: 12px;--radius-sm: 8px}html,body,#root{height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.msg-animate{animation:fadeIn .2s ease}