:root{--bg-color:#050505;--glass-bg:#ffffff0d;--glass-border:#ffffff1a;--accent-color:#3b82f6;--text-primary:#fff;--text-secondary:#a1a1aa;--font-family:"Inter", system-ui, -apple-system, sans-serif}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-family);margin:0;padding:0;overflow:hidden}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:16px}.chat-container{box-sizing:border-box;flex-direction:column;max-width:900px;height:100vh;margin:0 auto;padding:20px;display:flex}.messages-list{flex-direction:column;flex:1;gap:16px;padding:20px;display:flex;overflow-y:auto}.messages-list::-webkit-scrollbar{width:6px}.messages-list::-webkit-scrollbar-track{background:0 0}.messages-list::-webkit-scrollbar-thumb{background:var(--glass-border);border-radius:10px}.message{border-radius:12px;max-width:80%;padding:12px 16px;font-size:15px;line-height:1.5}.message.user{background:var(--accent-color);color:#fff;align-self:flex-end}.message.assistant{background:var(--glass-bg);border:1px solid var(--glass-border);align-self:flex-start}.input-area{gap:12px;margin-top:20px;padding:12px;display:flex}.chat-input{color:#fff;background:0 0;border:none;outline:none;flex:1;padding:4px 8px;font-size:16px}.send-btn{background:var(--accent-color);cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;width:40px;height:40px;transition:opacity .2s;display:flex}.send-btn:hover{opacity:.8}.send-btn:disabled{opacity:.5;cursor:not-allowed}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message{animation:.3s ease-out forwards fadeIn}@media (min-width:768px){.chat-container{padding:40px 20px}}