@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-primary:#0a0a0a;--bg-secondary:#111;--bg-tertiary:#1a1a1a;--bg-glass:#ffffff0a;--bg-glass-hover:#ffffff12;--bg-glass-active:#6366f11f;--accent:#6366f1;--accent-light:#818cf8;--accent-dim:#6366f133;--accent-glow:#6366f159;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#475569;--border:#ffffff0f;--border-accent:#6366f14d;--user-bubble-bg:linear-gradient(135deg, #6366f1, #8b5cf6);--ai-bubble-bg:#ffffff0d;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 20px #0006;--shadow-lg:0 8px 40px #00000080;--shadow-accent:0 0 30px #6366f126;--radius-sm:10px;--radius-md:16px;--radius-lg:20px;--radius-xl:28px;--sidebar-width:280px;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.4s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;height:100dvh;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;font-size:14px;line-height:1.6;overflow:hidden}#root{height:100dvh;display:flex;overflow:hidden}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{background:var(--bg-primary);width:100%;height:100dvh;display:flex;position:relative;overflow:hidden}.app-layout:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(#6366f114 0%,#0000 70%);width:60%;height:60%;position:fixed;top:-30%;left:-10%}.app-layout:after{content:"";pointer-events:none;z-index:0;background:radial-gradient(#8b5cf60f 0%,#0000 70%);width:50%;height:50%;position:fixed;bottom:-20%;right:-10%}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);border-right:1px solid var(--border);z-index:10;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0a0a0af2;flex-direction:column;flex-shrink:0;height:100%;display:flex;position:relative}.sidebar-header{border-bottom:1px solid var(--border);flex-shrink:0;padding:20px 16px 16px}.sidebar-brand{align-items:center;gap:10px;margin-bottom:14px;display:flex}.sidebar-brand-icon{background:var(--user-bubble-bg);border-radius:var(--radius-sm);color:#fff;width:32px;height:32px;box-shadow:var(--shadow-accent);flex-shrink:0;justify-content:center;align-items:center;font-size:14px;font-weight:700;display:flex}.sidebar-brand-name{color:var(--text-primary);letter-spacing:-.3px;font-size:15px;font-weight:700}.new-chat-btn{background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-md);width:100%;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-base);justify-content:center;align-items:center;gap:8px;padding:10px 14px;font-family:inherit;font-size:13px;font-weight:500;display:flex}.new-chat-btn:hover{background:var(--bg-glass-hover);border-color:var(--border-accent);color:var(--text-primary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.new-chat-btn:active{transform:translateY(0)}.sidebar-history{flex-direction:column;flex:1;gap:2px;padding:12px 10px;display:flex;overflow-y:auto}.history-section-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;padding:8px 8px 6px;font-size:10px;font-weight:600}.conversation-item{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);group:true;border:1px solid #0000;align-items:center;gap:8px;padding:10px;display:flex;position:relative}.conversation-item:hover{background:var(--bg-glass-hover);border-color:var(--border)}.conversation-item.active{background:var(--bg-glass-active);border-color:var(--border-accent)}.conversation-icon{border-radius:var(--radius-sm);background:var(--bg-glass);border:1px solid var(--border);width:28px;height:28px;color:var(--text-muted);transition:all var(--transition-fast);flex-shrink:0;justify-content:center;align-items:center;display:flex}.conversation-item.active .conversation-icon{background:var(--accent-dim);border-color:var(--border-accent);color:var(--accent-light)}.conversation-meta{flex:1;min-width:0}.conversation-title{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;transition:color var(--transition-fast);font-size:13px;font-weight:500;overflow:hidden}.conversation-item.active .conversation-title,.conversation-item:hover .conversation-title{color:var(--text-primary)}.conversation-time{color:var(--text-muted);margin-top:1px;font-size:11px}.conversation-delete{cursor:pointer;width:24px;height:24px;color:var(--text-muted);opacity:0;transition:all var(--transition-fast);background:0 0;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.conversation-item:hover .conversation-delete{opacity:1}.conversation-delete:hover{color:#ef4444;background:#ef444426}.sidebar-footer{border-top:1px solid var(--border);flex-shrink:0;padding:14px 16px}.main-area{z-index:5;flex-direction:column;flex:1;height:100%;display:flex;position:relative;overflow:hidden}.topbar{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0a0a0acc;flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;padding:14px 24px;display:flex}.topbar-left{align-items:center;gap:12px;display:flex}.topbar-title{color:var(--text-primary);letter-spacing:-.4px;font-size:16px;font-weight:700}.topbar-subtitle{color:var(--text-muted);font-size:12px}.status-indicator{color:var(--text-muted);align-items:center;gap:6px;font-size:12px;display:flex}.status-dot{background:#22c55e;border-radius:50%;width:6px;height:6px;animation:2s infinite pulse-green;box-shadow:0 0 8px #22c55e}.status-dot.loading{background:var(--accent);box-shadow:0 0 8px var(--accent);animation:1s infinite pulse-accent}@keyframes pulse-green{0%,to{opacity:1}50%{opacity:.5}}@keyframes pulse-accent{0%,to{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.3)}}.topbar-right{align-items:center;gap:10px;display:flex}.login-btn{background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;align-items:center;gap:8px;padding:9px 18px;font-family:inherit;font-size:13px;font-weight:500;display:flex}.login-btn:hover{background:var(--bg-glass-hover);border-color:var(--border-accent);color:var(--text-primary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.login-btn.logged-in{background:var(--accent-dim);border-color:var(--border-accent);color:var(--accent-light)}.login-btn.logged-in:hover{background:#6366f140}.user-avatar{background:var(--user-bubble-bg);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:10px;font-weight:700;display:flex;overflow:hidden}.user-avatar img{object-fit:cover;width:100%;height:100%}.google-icon{flex-shrink:0;width:16px;height:16px}.messages-area{scroll-behavior:smooth;flex-direction:column;flex:1;gap:16px;padding:24px;display:flex;overflow-y:auto}.welcome-screen{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:40px;animation:.5s fadeInUp;display:flex}.welcome-logo{background:var(--user-bubble-bg);color:#fff;width:72px;height:72px;box-shadow:var(--shadow-accent), 0 0 60px #6366f133;border-radius:24px;justify-content:center;align-items:center;margin-bottom:8px;font-size:32px;font-weight:800;display:flex}.welcome-title{color:var(--text-primary);letter-spacing:-.5px;font-size:28px;font-weight:700}.welcome-desc{color:var(--text-secondary);max-width:400px;font-size:14px;line-height:1.7}.welcome-chips{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:8px;display:flex}.welcome-chip{background:var(--bg-glass);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-base);border-radius:100px;padding:8px 16px;font-family:inherit;font-size:13px}.welcome-chip:hover{background:var(--bg-glass-active);border-color:var(--border-accent);color:var(--accent-light);transform:translateY(-2px)}.message-row{align-items:flex-start;gap:12px;animation:.3s fadeInUp;display:flex}.message-row.user{flex-direction:row-reverse}.message-avatar{border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;margin-top:2px;font-size:12px;font-weight:700;display:flex}.message-avatar.ai-avatar{color:#fff;background:linear-gradient(135deg,#6366f1,#8b5cf6);box-shadow:0 0 16px #6366f14d}.message-avatar.user-avatar-msg{background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-secondary)}.message-content{flex-direction:column;gap:4px;max-width:72%;display:flex}.message-row.user .message-content{align-items:flex-end}.message-bubble{border-radius:var(--radius-lg);transition:box-shadow var(--transition-base);padding:12px 16px;font-size:14px;line-height:1.7;position:relative}.message-bubble.ai{background:var(--ai-bubble-bg);border:1px solid var(--border);color:var(--text-primary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm);border-bottom-left-radius:6px}.message-bubble.ai:hover{box-shadow:var(--shadow-md);border-color:#ffffff1a}.message-bubble.user{background:var(--user-bubble-bg);color:#fff;border-bottom-right-radius:6px;box-shadow:0 4px 20px #6366f159}.message-bubble.user:hover{transform:translateY(-1px);box-shadow:0 6px 28px #6366f173}.message-bubble.ai.error{color:#fca5a5;background:#ef44440f;border-color:#ef44444d}.message-timestamp{color:var(--text-muted);padding:0 4px;font-size:11px}.message-bubble pre{border:1px solid var(--border);border-radius:var(--radius-sm);background:#0006;margin:8px 0;padding:12px;font-family:Fira Code,Cascadia Code,monospace;font-size:13px;line-height:1.5;overflow-x:auto}.message-bubble code{color:var(--accent-light);background:#0000004d;border-radius:4px;padding:2px 6px;font-family:Fira Code,monospace;font-size:13px}.message-bubble pre code{color:inherit;background:0 0;padding:0}.typing-indicator{align-items:center;gap:4px;padding:12px 16px;display:flex}.typing-dot{background:var(--text-muted);border-radius:50%;width:6px;height:6px;animation:1.2s infinite typing-bounce}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,80%,to{opacity:.5;transform:translateY(0)}40%{opacity:1;transform:translateY(-6px)}}.input-bar{border-top:1px solid var(--border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0a0a0ae6;flex-shrink:0;padding:16px 24px 20px}.input-wrapper{background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-xl);transition:all var(--transition-base);box-shadow:var(--shadow-sm);align-items:flex-end;gap:10px;padding:10px 14px;display:flex}.input-wrapper:focus-within{border-color:var(--border-accent);background:var(--bg-glass-hover);box-shadow:0 0 0 3px var(--accent-dim), var(--shadow-md)}.chat-input{color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;min-height:24px;max-height:160px;padding:2px 0;font-family:inherit;font-size:14px;line-height:1.6}.chat-input::placeholder{color:var(--text-muted)}.chat-input::-webkit-scrollbar{width:3px}.send-btn{background:var(--accent);cursor:pointer;color:#fff;width:36px;height:36px;transition:all var(--transition-base);border:none;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex;box-shadow:0 2px 12px #6366f166}.send-btn:hover:not(:disabled){background:var(--accent-light);transform:translateY(-1px)scale(1.05);box-shadow:0 4px 20px #6366f180}.send-btn:active:not(:disabled){transform:scale(.97)}.send-btn:disabled{background:var(--bg-tertiary);color:var(--text-muted);cursor:not-allowed;box-shadow:none}.stop-btn{color:#f87171;box-shadow:none;background:#ef444433;border:1px solid #ef44444d}.stop-btn:hover{background:#ef44444d!important;box-shadow:0 2px 12px #ef444433!important}.input-footer{justify-content:center;margin-top:10px;display:flex}.input-hint{color:var(--text-muted);font-size:11px}.demo-banner{border-radius:var(--radius-md);color:#fbbf24;background:#eab30814;border:1px solid #eab30833;align-items:center;gap:8px;margin:0 24px;padding:10px 14px;font-size:12px;display:flex}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (width<=768px){:root{--sidebar-width:0px}.sidebar{width:280px;min-width:280px;transition:transform var(--transition-slow);z-index:100;box-shadow:var(--shadow-lg);position:fixed;left:-280px}.sidebar.mobile-open{transform:translate(280px)}.topbar{padding:12px 16px}.messages-area{padding:16px}.input-bar{padding:12px 16px 16px}.message-content{max-width:88%}.welcome-title{font-size:22px}}@media (width<=480px){.welcome-chips{flex-direction:column;align-items:center}.message-content{max-width:95%}}