*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#0a0a0a;--bg-secondary:#141414;--bg-tertiary:#1a1a1a;--bg-hover:#1e1e1e;--bg-active:#252525;--border:#222;--border-light:#333;--text-primary:#e0e0e0;--text-secondary:#999;--text-muted:#666;--accent:#4a6cf7;--accent-hover:#5b7bf9;--accent-dim:#4a6cf726;--danger:#e74c3c;--danger-hover:#c0392b;--success:#2ecc71;--radius:12px;--radius-sm:8px;--radius-xs:6px;--shadow:0 2px 12px #0006;--transition:.15s ease}html,body,#root{width:100%;height:100%}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5}a{color:var(--accent);text-decoration:none}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#333;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#444}.login-page{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);text-align:center;width:100%;max-width:400px;box-shadow:var(--shadow);padding:48px 40px}.login-logo{color:var(--text-primary);letter-spacing:-1px;font-size:42px;font-weight:700}.login-logo-sub{color:var(--accent);margin-top:-4px;margin-bottom:8px;font-size:28px;font-weight:300}.login-tagline{color:var(--text-secondary);margin-bottom:32px;font-size:14px}.login-error{color:#e74c3c;border-radius:var(--radius-xs);background:#e74c3c1a;border:1px solid #e74c3c4d;margin-bottom:16px;padding:10px 16px;font-size:13px}.login-loading{color:var(--text-secondary);margin-bottom:16px;font-size:14px}.google-btn-container{justify-content:center;margin-bottom:16px;display:flex}.login-footer{color:var(--text-muted);font-size:12px}.app-layout{flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-navbar{background:var(--bg-secondary);border-bottom:1px solid var(--border);z-index:10;flex-shrink:0;justify-content:space-between;align-items:center;height:56px;padding:0 20px;display:flex}.navbar-left{align-items:center;min-width:140px;display:flex}.navbar-brand{align-items:baseline;gap:6px;text-decoration:none;display:flex}.brand-pat{color:var(--text-primary);font-size:20px;font-weight:700}.brand-ai{color:var(--accent);font-size:16px;font-weight:300}.navbar-center{align-items:center;gap:4px;display:flex}.nav-link{border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition);align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;text-decoration:none;display:flex}.nav-link:hover{color:var(--text-primary);background:var(--bg-hover)}.nav-link.active{color:var(--accent);background:var(--accent-dim)}.navbar-right{justify-content:flex-end;align-items:center;min-width:140px;display:flex}.logout-btn{border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);background:0 0;align-items:center;gap:6px;padding:8px 14px;font-size:13px;display:flex}.logout-btn:hover{color:var(--danger);border-color:var(--danger);background:#e74c3c14}.app-body{flex:1;overflow:hidden}.chat-layout{height:100%;display:flex}.chat-sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;gap:8px;width:260px;padding:12px;display:flex}.new-chat-btn{border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--bg-tertiary);width:100%;color:var(--text-primary);cursor:pointer;transition:all var(--transition);padding:10px 16px;font-size:14px;font-weight:500}.new-chat-btn:hover{background:var(--bg-hover);border-color:var(--accent);color:var(--accent)}.conv-list{flex-direction:column;flex:1;gap:2px;display:flex;overflow-y:auto}.conv-loading{text-align:center;color:var(--text-muted);padding:20px;font-size:13px}.conv-item{border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition);justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;display:flex}.conv-item:hover{background:var(--bg-hover)}.conv-item.active{background:var(--accent-dim)}.conv-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:13px;overflow:hidden}.conv-item.active .conv-title{color:var(--accent)}.conv-delete{opacity:0;color:var(--text-muted);cursor:pointer;transition:opacity var(--transition);background:0 0;border:none;flex-shrink:0;padding:0 4px;font-size:18px;line-height:1}.conv-item:hover .conv-delete{opacity:1}.conv-delete:hover{color:var(--danger)}.chat-main{flex-direction:column;flex:1;min-width:0;display:flex}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:20px;display:flex;overflow-y:auto}.chat-empty{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;display:flex}.chat-empty-icon{opacity:.5;margin-bottom:12px;font-size:48px}.chat-empty p{font-size:15px}.chat-loading{justify-content:center;align-items:center;height:100%;display:flex}.message-row{align-items:flex-start;gap:10px;width:100%;max-width:760px;margin:0 auto;display:flex}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;margin-top:2px;font-size:11px;font-weight:600;display:flex}.assistant-avatar{background:var(--accent-dim);color:var(--accent);border:1px solid #4a6cf74d}.user-avatar{color:#8aa4ff;background:#4a6cf740}.message-bubble{border-radius:var(--radius);word-wrap:break-word;max-width:70%;padding:10px 14px;position:relative}.user-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.assistant-bubble{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);border-bottom-left-radius:4px}.message-content{font-size:14px;line-height:1.6}.message-content strong{font-weight:600}.message-content em{opacity:.85;font-style:italic}.message-content .code-block{border:1px solid var(--border-light);border-radius:var(--radius-xs);background:#0d0d0d;margin:8px 0;padding:12px 14px;font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:13px;line-height:1.5;overflow-x:auto}.message-content .inline-code{border:1px solid var(--border-light);background:#ffffff14;border-radius:4px;padding:1px 5px;font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:.9em}.message-time{color:var(--text-muted);opacity:.6;margin-top:4px;font-size:11px;display:block}.user-bubble .message-time{color:#fff9}.ai-thinking{justify-content:flex-start;padding-left:42px;display:flex}.thinking-dots{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);border-bottom-left-radius:4px;gap:4px;padding:12px 16px;display:flex}.thinking-dots span{background:var(--text-muted);border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite bounce}.thinking-dots span:first-child{animation-delay:-.32s}.thinking-dots span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{opacity:.4;transform:scale(0)}40%{opacity:1;transform:scale(1)}}.chat-input-bar{background:var(--bg-primary);border-top:1px solid var(--border);align-items:flex-end;gap:8px;padding:16px 20px;display:flex}.chat-input{resize:none;border:1px solid var(--border-light);border-radius:var(--radius);background:var(--bg-secondary);color:var(--text-primary);max-height:120px;transition:border-color var(--transition);outline:none;flex:1;padding:12px 16px;font-family:inherit;font-size:14px;line-height:1.5}.chat-input::placeholder{color:var(--text-muted)}.chat-input:focus{border-color:var(--accent)}.chat-input:disabled{opacity:.5}.send-btn{border-radius:var(--radius-sm);background:var(--accent);color:#fff;cursor:pointer;width:42px;height:42px;transition:all var(--transition);border:none;flex-shrink:0;justify-content:center;align-items:center;display:flex}.send-btn:hover:not(:disabled){background:var(--accent-hover);transform:scale(1.05)}.send-btn:disabled{opacity:.3;cursor:not-allowed;transform:none}.images-page{max-width:1000px;height:100%;margin:0 auto;padding:32px;overflow-y:auto}.images-header{margin-bottom:28px}.images-header h1{color:var(--text-primary);margin-bottom:4px;font-size:24px;font-weight:600}.images-header p{color:var(--text-secondary);font-size:14px}.image-input-area{margin-bottom:32px}.image-input-row{gap:10px;display:flex}.image-prompt-input{border:1px solid var(--border-light);border-radius:var(--radius);background:var(--bg-secondary);color:var(--text-primary);transition:border-color var(--transition);outline:none;flex:1;padding:12px 16px;font-family:inherit;font-size:14px}.image-prompt-input::placeholder{color:var(--text-muted)}.image-prompt-input:focus{border-color:var(--accent)}.image-prompt-input:disabled{opacity:.5}.generate-btn{border-radius:var(--radius);background:var(--accent);color:#fff;cursor:pointer;transition:all var(--transition);border:none;justify-content:center;align-items:center;min-width:120px;padding:12px 24px;font-size:14px;font-weight:600;display:flex}.generate-btn:hover:not(:disabled){background:var(--accent-hover)}.generate-btn:disabled{opacity:.5;cursor:not-allowed}.btn-spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.image-error{color:var(--danger);border-radius:var(--radius-xs);background:#e74c3c1a;border:1px solid #e74c3c4d;margin-top:10px;padding:10px 14px;font-size:13px}.generating-indicator{flex-direction:column;align-items:center;gap:16px;padding:40px 0;display:flex}.generating-indicator p{color:var(--text-secondary);font-size:14px}.generating-animation{justify-content:center;align-items:center;width:60px;height:60px;display:flex}.gen-pulse{background:var(--accent);border-radius:50%;width:40px;height:40px;animation:1.5s ease-in-out infinite pulse}@keyframes pulse{0%{opacity:.5;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}to{opacity:.5;transform:scale(.8)}}.spinner{border:3px solid var(--border-light);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.7s linear infinite spin}.images-loading{justify-content:center;padding:60px 0;display:flex}.images-empty{color:var(--text-muted);flex-direction:column;align-items:center;gap:8px;padding:60px 0;display:flex}.empty-icon{opacity:.5;margin-bottom:8px;font-size:48px}.image-gallery{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.image-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);overflow:hidden}.image-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 20px #0000004d}.image-card-img{aspect-ratio:1;background:var(--bg-tertiary);width:100%;overflow:hidden}.image-card-img img{object-fit:cover;width:100%;height:100%}.image-card-footer{justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;display:flex}.image-card-prompt{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:12px;overflow:hidden}.image-delete-btn{color:var(--text-muted);cursor:pointer;transition:all var(--transition);background:0 0;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;padding:4px;display:flex}.image-delete-btn:hover{color:var(--danger);background:#e74c3c1a}.image-modal{z-index:1000;background:#000000d9;justify-content:center;align-items:center;padding:24px;animation:.2s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.image-modal-content{flex-direction:column;align-items:center;gap:16px;max-width:90vw;max-height:90vh;display:flex;position:relative}.image-modal-content img{border-radius:var(--radius);object-fit:contain;max-width:100%;max-height:70vh}.modal-close{border:1px solid var(--border-light);background:var(--bg-secondary);width:36px;height:36px;color:var(--text-primary);cursor:pointer;transition:all var(--transition);z-index:1;border-radius:50%;justify-content:center;align-items:center;font-size:20px;display:flex;position:absolute;top:-12px;right:-12px}.modal-close:hover{background:var(--bg-hover);border-color:var(--accent)}.modal-prompt{color:var(--text-secondary);text-align:center;max-width:600px;font-size:14px}.modal-actions{gap:10px;margin-top:4px;display:flex}.modal-download-btn{border:1px solid var(--border-light);border-radius:var(--radius-xs);background:var(--bg-secondary);color:var(--text-primary);transition:all var(--transition);padding:8px 18px;font-size:13px;text-decoration:none}.modal-download-btn:hover{border-color:var(--accent);color:var(--accent)}.modal-delete-btn{border-radius:var(--radius-xs);color:var(--danger);cursor:pointer;transition:all var(--transition);background:0 0;border:1px solid #e74c3c4d;padding:8px 18px;font-size:13px}.modal-delete-btn:hover{border-color:var(--danger);background:#e74c3c1a}@media (width<=768px){.chat-sidebar{display:none}.image-gallery{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}.image-prompt-input{font-size:14px}.generate-btn{min-width:100px;padding:12px 16px}.images-page{padding:20px}.login-card{margin:16px;padding:32px 24px}.navbar-brand{display:flex}.nav-link span{display:none}.message-bubble{max-width:85%}.app-navbar{padding:0 12px}.nav-link{padding:8px 12px}}@media (width<=480px){.image-gallery{grid-template-columns:1fr}.image-input-row{flex-direction:column}.generate-btn{width:100%}.navbar-center{gap:2px}.nav-link{padding:8px 10px;font-size:13px}}