:root{--chat-color-primary:#222222;--chat-color-secondary:#333333;--chat-color-tertiary:#444444;--chat-color-elevated:#33333a;--chat-color-text-primary:#ececf1;--chat-color-text-secondary:#8e8ea0;--chat-color-text-muted:#6b7280;--chat-color-accent:#ececf1;--chat-color-accent-hover:#d1d5db;--chat-color-accent-active:#b8bcc0;--chat-color-success:#10b981;--chat-color-warning:#f59e0b;--chat-color-error:#ef4444;--chat-color-info:#3b82f6;--chat-bg-primary:var(--chat-color-primary);--chat-bg-secondary:var(--chat-color-secondary);--chat-bg-tertiary:var(--chat-color-tertiary);--chat-bg-elevated:var(--chat-color-elevated);--chat-bg-hover:rgba(255,255,255,0.08);--chat-bg-active:rgba(255,255,255,0.12);--chat-bg-selected:rgba(255,255,255,0.16);--chat-bg-disabled:rgba(255,255,255,0.04);--chat-bg-success:rgba(16,185,129,0.1);--chat-bg-warning:rgba(245,158,11,0.1);--chat-bg-error:rgba(239,68,68,0.1);--chat-bg-info:rgba(59,130,246,0.1);--chat-border-primary:var(--chat-color-secondary);--chat-border-secondary:var(--chat-color-tertiary);--chat-border-focus:var(--chat-color-text-secondary);--chat-border-hover:rgba(255,255,255,0.2);--chat-border-active:rgba(255,255,255,0.3);--chat-border-error:var(--chat-color-error);--chat-border-success:var(--chat-color-success);--chat-text-primary:var(--chat-color-text-primary);--chat-text-secondary:var(--chat-color-text-secondary);--chat-text-muted:var(--chat-color-text-muted);--chat-text-hover:var(--chat-color-text-primary);--chat-text-active:var(--chat-color-text-primary);--chat-text-disabled:var(--chat-color-text-muted);--chat-text-success:var(--chat-color-success);--chat-text-warning:var(--chat-color-warning);--chat-text-error:var(--chat-color-error);--chat-text-info:var(--chat-color-info);--chat-shadow-sm:0 1px 2px rgba(0,0,0,0.1);--chat-shadow-md:0 2px 4px rgba(0,0,0,0.15);--chat-shadow-lg:0 4px 8px rgba(0,0,0,0.2);--chat-shadow-xl:0 8px 16px rgba(0,0,0,0.25);--chat-shadow-dropdown:0 4px 12px rgba(0,0,0,0.3);--chat-shadow-input:0 2px 6px rgba(0,0,0,0.15);--chat-shadow-button:0 1px 3px rgba(0,0,0,0.1);--chat-spacing-xs:0.25rem;--chat-spacing-sm:0.5rem;--chat-spacing-md:0.75rem;--chat-spacing-lg:1rem;--chat-spacing-xl:1.5rem;--chat-spacing-2xl:2rem;--chat-spacing-input:0.75rem;--chat-spacing-button:0.5rem;--chat-spacing-section:1rem;--chat-spacing-container:1.5rem;--chat-radius-sm:4px;--chat-radius-md:6px;--chat-radius-lg:8px;--chat-radius-xl:12px;--chat-radius-2xl:16px;--chat-radius-full:50%;--chat-radius-button:var(--chat-radius-md);--chat-radius-input:var(--chat-radius-lg);--chat-radius-dropdown:var(--chat-radius-lg);--chat-radius-card:var(--chat-radius-xl);--chat-transition-fast:0.15s ease;--chat-transition-normal:0.2s ease;--chat-transition-slow:0.3s ease;--chat-transition-hover:var(--chat-transition-fast);--chat-transition-focus:var(--chat-transition-fast);--chat-transition-button:var(--chat-transition-normal);--chat-transition-dropdown:var(--chat-transition-slow);--chat-button-sm:28px;--chat-button-md:32px;--chat-button-lg:36px;--chat-button-xl:40px;--chat-icon-sm:14px;--chat-icon-md:16px;--chat-icon-lg:20px;--chat-icon-xl:24px;--chat-container-sm:320px;--chat-container-md:480px;--chat-container-lg:640px;--chat-container-xl:900px;--chat-height-header:56px;--chat-height-input:60px;--chat-height-button:var(--chat-button-md);--chat-z-dropdown:1000;--chat-z-sidebar:1001;--chat-z-modal:1002;--chat-z-tooltip:1003;--chat-z-overlay:999;--chat-font-size-xs:0.75rem;--chat-font-size-sm:0.875rem;--chat-font-size-md:1rem;--chat-font-size-lg:1.125rem;--chat-font-size-xl:1.25rem;--chat-font-weight-normal:400;--chat-font-weight-medium:500;--chat-font-weight-semibold:600;--chat-font-weight-bold:700;--chat-line-height-tight:1.25;--chat-line-height-normal:1.5;--chat-line-height-relaxed:1.75;--chat-breakpoint-sm:640px;--chat-breakpoint-md:768px;--chat-breakpoint-lg:1024px;--chat-breakpoint-xl:1280px;--chat-text-color:var(--chat-text-primary);--chat-text-muted:var(--chat-text-secondary);--chat-border-color:var(--chat-border-primary);--chat-border-color-focus:var(--chat-border-focus);--chat-accent-color:var(--chat-accent);--chat-header-bg:var(--chat-bg-primary);--chat-container-bg:var(--chat-bg-primary);--chat-opacity-disabled:0.5;--chat-opacity-hover:0.8;--chat-opacity-active:0.9;--chat-blur-sm:4px;--chat-blur-md:8px;--chat-blur-lg:16px;--chat-blur-xl:24px}.chat-fullscreen-container{height:100vh;width:100vw;color:var(--chat-text-primary)}.chat-content,.chat-fullscreen-container{display:flex;overflow:hidden;background:var(--chat-bg-primary)}.chat-content{flex:1;flex-direction:column;position:relative}.chat-header{justify-content:space-between;padding:0 var(--chat-spacing-lg);height:var(--chat-height-header);background:var(--chat-bg-primary);border-bottom:1px solid var(--chat-border-primary);flex-shrink:0}.chat-header,.header-left{display:flex;align-items:center}.header-left{gap:var(--chat-spacing-lg)}.sidebar-toggle-btn{background:none;border:none;cursor:pointer;color:var(--chat-text-secondary);padding:var(--chat-spacing-sm);border-radius:var(--chat-radius-md);transition:background var(--chat-transition-normal)}.sidebar-toggle-btn:hover{background:var(--chat-bg-hover)}.chat-logo{height:24px;width:auto}.chat-actions{display:flex;align-items:center;gap:var(--chat-spacing-sm)}.chat-sidebar{position:absolute;top:0;width:280px;height:100%;transition:transform var(--chat-transition-slow);z-index:var(--chat-z-sidebar)}.chat-sidebar.open{box-shadow:var(--chat-shadow-xl)}.sidebar-content-wrapper{display:flex;flex-direction:column;height:100%;overflow:hidden}.sidebar-top-actions{display:flex;align-items:center;justify-content:flex-end;gap:var(--chat-spacing-sm);padding:var(--chat-spacing-input);border-bottom:1px solid var(--chat-border-primary);margin-bottom:var(--chat-spacing-lg)}.sidebar-content{padding:0 var(--chat-spacing-input);flex:1;overflow-y:auto}.sidebar-section{margin-bottom:var(--chat-spacing-lg)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--chat-spacing-sm)}.section-header h3{color:var(--chat-text-primary);font-size:var(--chat-font-size-lg);font-weight:var(--chat-font-weight-semibold);margin:0}.section-toggle{display:flex;align-items:center;justify-content:center;width:var(--chat-button-md);height:var(--chat-button-md);border-radius:var(--chat-radius-md);background:transparent;border:1px solid var(--chat-border-primary);color:var(--chat-text-secondary);cursor:pointer;transition:all var(--chat-transition-normal)}.section-toggle:hover{background:var(--chat-bg-hover);color:var(--chat-text-primary);border-color:var(--chat-border-hover)}.section-content{padding-left:var(--chat-spacing-lg);display:flex;flex-direction:column;gap:var(--chat-spacing-xs)}.section-actions{gap:var(--chat-spacing-sm)}.agent-option,.section-actions{display:flex;align-items:center}.agent-option{padding:var(--chat-spacing-xs) var(--chat-spacing-sm);background:transparent;border:none;color:var(--chat-text-secondary);cursor:pointer;transition:all var(--chat-transition-normal);font-size:var(--chat-font-size-sm);border-radius:var(--chat-radius-sm);text-align:left}.agent-option:hover{color:var(--chat-text-primary);background:var(--chat-bg-hover)}.agent-option.active{color:var(--chat-text-primary);background:var(--chat-bg-secondary)}.collapse-btn,.new-note-btn{display:flex;align-items:center;justify-content:center;width:var(--chat-button-md);height:var(--chat-button-md);border-radius:var(--chat-radius-md);background:transparent;border:1px solid var(--chat-border-primary);color:var(--chat-text-secondary);cursor:pointer;transition:all var(--chat-transition-normal)}.collapse-btn:hover,.new-note-btn:hover{background:var(--chat-bg-hover);color:var(--chat-text-primary);border-color:var(--chat-border-hover)}.conversations-list{flex:1;overflow-y:auto;padding:0 var(--chat-spacing-input);display:flex;flex-direction:column;gap:var(--chat-spacing-xs)}.conversation-item{padding:var(--chat-spacing-input);border-radius:var(--chat-radius-md);cursor:pointer;color:var(--chat-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background var(--chat-transition-normal);display:flex;justify-content:space-between;align-items:center}.conversation-item:hover{background:var(--chat-bg-hover)}.conversation-item.active{background:var(--chat-bg-secondary);color:var(--chat-text-primary)}.conversation-content{flex:1;display:flex;flex-direction:column;min-width:0}.conversation-title{font-weight:var(--chat-font-weight-medium);margin-bottom:var(--chat-spacing-xs);transition:color var(--chat-transition-normal)}.conversation-title:hover{color:var(--chat-text-primary)}.conversation-preview{font-size:var(--chat-font-size-xs);color:var(--chat-text-muted);line-height:var(--chat-line-height-tight);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.conversation-actions{display:flex;gap:var(--chat-spacing-sm);background:var(--chat-bg-secondary)}.conversation-actions button{background:none;border:none;color:var(--chat-text-muted);cursor:pointer;padding:var(--chat-spacing-xs);border-radius:var(--chat-radius-sm);transition:color var(--chat-transition-normal)}.conversation-actions button:hover,.rename-input{color:var(--chat-text-primary)}.rename-input{width:100%;background:var(--chat-bg-secondary);border:1px solid var(--chat-accent);padding:var(--chat-spacing-xs) var(--chat-spacing-sm);border-radius:var(--chat-radius-sm);outline:none}.sidebar-bottom{padding:var(--chat-spacing-input);border-top:1px solid var(--chat-border-primary)}.user-menu{position:relative;display:flex;align-items:center;padding:var(--chat-spacing-sm);border-radius:var(--chat-radius-md);transition:background var(--chat-transition-normal);cursor:pointer}.user-menu:hover{background:var(--chat-bg-hover)}.user-menu:hover .user-menu-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.user-avatar{width:28px;height:28px;border-radius:var(--chat-radius-full);margin-right:var(--chat-spacing-input)}.user-email{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:var(--chat-font-size-sm)}.user-menu-dropdown{position:absolute;bottom:calc(100% + var(--chat-spacing-sm));left:0;width:100%;background:var(--chat-bg-secondary);border-radius:var(--chat-radius-md);box-shadow:var(--chat-shadow-lg);padding:var(--chat-spacing-sm);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity var(--chat-transition-normal),transform var(--chat-transition-normal);z-index:10}.user-menu-item{display:flex;align-items:center;gap:var(--chat-spacing-input);width:100%;padding:var(--chat-spacing-input);border-radius:var(--chat-radius-sm);background:none;border:none;color:var(--chat-text-secondary);cursor:pointer;transition:background var(--chat-transition-normal)}.user-menu-item:hover{background:var(--chat-bg-hover)}.input-area-container{position:absolute;bottom:0;left:0;right:0;padding:var(--chat-spacing-lg) var(--chat-spacing-xl) var(--chat-spacing-2xl);background:linear-gradient(to top,var(--chat-bg-primary) 20%,transparent 100%);pointer-events:none;transition:padding-bottom var(--chat-transition-normal)}.chatgpt-input-area{max-width:var(--chat-container-xl);margin:0 auto;background:var(--chat-bg-elevated);border:1px solid var(--chat-border-primary);border-radius:var(--chat-radius-xl);padding:var(--chat-spacing-input) var(--chat-spacing-sm) var(--chat-spacing-input) var(--chat-spacing-input);box-shadow:var(--chat-shadow-input);pointer-events:auto;transition:all var(--chat-transition-slow);min-height:var(--chat-height-input);display:flex;flex-direction:column}.chatgpt-input-area:focus-within{border-color:var(--chat-border-focus);box-shadow:var(--chat-shadow-lg)}.input-main-container{display:flex;align-items:flex-end;gap:var(--chat-spacing-input);flex:1}.input-content{flex:1;display:flex;flex-direction:column;min-height:0}.chatgpt-textarea{background:transparent;border:none;outline:none;color:var(--chat-text-primary);font-size:var(--chat-font-size-md);line-height:var(--chat-line-height-normal);resize:none;padding:var(--chat-spacing-input) var(--chat-spacing-sm) var(--chat-spacing-input) .125rem;max-height:300px;min-height:24px;font-family:inherit;width:100%;height:auto;overflow-y:auto;transition:height var(--chat-transition-normal);box-sizing:border-box}.chatgpt-textarea::placeholder{color:var(--chat-text-secondary)}.input-icons-container{padding:var(--chat-spacing-sm) 0;margin-top:var(--chat-spacing-sm);flex-shrink:0}.input-icons-container,.input-icons-left{display:flex;align-items:center;gap:var(--chat-spacing-sm)}.input-icons-left{flex:1}.icon-button{background:none;border:none;color:var(--chat-text-secondary);cursor:pointer;padding:var(--chat-spacing-xs);border-radius:var(--chat-radius-sm);transition:color var(--chat-transition-normal),background var(--chat-transition-normal);display:flex;align-items:center;justify-content:center}.icon-button:hover{color:var(--chat-text-primary);background:var(--chat-bg-hover)}.version-text{color:var(--chat-text-secondary);font-size:var(--chat-font-size-xs);font-weight:var(--chat-font-weight-medium);margin-left:var(--chat-spacing-xs)}.input-actions{gap:var(--chat-spacing-sm);flex-shrink:0}.input-actions,.speaker-button{display:flex;align-items:center}.speaker-button{background:none;border:none;cursor:pointer;padding:var(--chat-spacing-xs);border-radius:var(--chat-radius-full);transition:background var(--chat-transition-normal);justify-content:center;color:var(--chat-text-secondary)}.speaker-button:hover{background:var(--chat-bg-hover);color:var(--chat-text-primary)}.mic-button-chatgpt{display:flex;align-items:center;justify-content:center;width:var(--chat-button-md);height:var(--chat-button-md);border-radius:var(--chat-radius-full);background:var(--chat-bg-tertiary);border:none;color:var(--chat-text-secondary);cursor:pointer;transition:all var(--chat-transition-normal);flex-shrink:0}.mic-button-chatgpt:hover:not(:disabled){background:var(--chat-bg-secondary);color:var(--chat-accent-hover);transform:scale(1.05)}.mic-button-chatgpt:disabled{background:var(--chat-bg-tertiary);color:var(--chat-text-secondary);cursor:not-allowed;transform:none}.send-button-chatgpt{display:flex;align-items:center;justify-content:center;width:var(--chat-button-md);height:var(--chat-button-md);border-radius:var(--chat-radius-full);background:var(--chat-accent);border:none;color:var(--chat-bg-elevated);cursor:pointer;transition:all var(--chat-transition-normal);flex-shrink:0}.send-button-chatgpt:hover:not(:disabled){background:var(--chat-accent-hover);transform:scale(1.05)}.send-button-chatgpt:disabled{background:var(--chat-bg-tertiary);color:var(--chat-text-secondary);cursor:not-allowed;transform:none}.messages-container{flex:1;overflow-y:auto;padding:var(--chat-spacing-xl);padding-bottom:16rem;background:var(--chat-bg-primary)}.message-list{max-width:var(--chat-container-xl);margin:0 auto;display:flex;flex-direction:column;gap:var(--chat-spacing-xl)}.enhanced-markdown{color:var(--chat-text-primary);font-family:inherit;line-height:var(--chat-line-height-normal)}.enhanced-markdown h1,.enhanced-markdown h2,.enhanced-markdown h3,.enhanced-markdown h4,.enhanced-markdown h5,.enhanced-markdown h6{font-weight:var(--chat-font-weight-semibold);margin:var(--chat-spacing-lg) 0 var(--chat-spacing-sm) 0;color:var(--chat-text-primary);line-height:var(--chat-line-height-tight)}.enhanced-markdown h1{font-size:1.75rem}.enhanced-markdown h2{font-size:1.5rem}.enhanced-markdown h3{font-size:1.25rem}.enhanced-markdown h4{font-size:1.125rem}.enhanced-markdown h5{font-size:1rem}.enhanced-markdown h6{font-size:.875rem}.enhanced-markdown p{margin:var(--chat-spacing-sm) 0;line-height:var(--chat-line-height-normal)}.enhanced-markdown ol,.enhanced-markdown ul{margin:var(--chat-spacing-sm) 0;padding-left:var(--chat-spacing-xl)}.enhanced-markdown li{margin:var(--chat-spacing-xs) 0;line-height:var(--chat-line-height-normal)}.enhanced-markdown blockquote{margin:var(--chat-spacing-lg) 0;padding:var(--chat-spacing-lg);border-left:4px solid var(--chat-accent);background:var(--chat-bg-secondary);border-radius:var(--chat-radius-md)}.enhanced-markdown code{background:var(--chat-bg-tertiary);color:var(--chat-text-primary);padding:var(--chat-spacing-xs) var(--chat-spacing-sm);border-radius:var(--chat-radius-sm);font-family:var(--font-geist-mono),monospace;font-size:.9em}.enhanced-markdown pre{background:var(--chat-bg-tertiary);padding:var(--chat-spacing-lg);border-radius:var(--chat-radius-lg);overflow-x:auto;margin:var(--chat-spacing-lg) 0;border:1px solid var(--chat-border-primary)}.enhanced-markdown pre code{background:none;padding:0;border-radius:0;color:var(--chat-text-primary)}.enhanced-markdown a{color:var(--chat-accent);text-decoration:none;font-weight:var(--chat-font-weight-medium);transition:color var(--chat-transition-normal)}.enhanced-markdown a:hover{color:var(--chat-accent-hover);text-decoration:underline}.enhanced-markdown table{width:100%;border-collapse:collapse;margin:var(--chat-spacing-lg) 0;border-radius:var(--chat-radius-lg);overflow:hidden;box-shadow:var(--chat-shadow-sm);border:1px solid var(--chat-border-primary)}.enhanced-markdown td,.enhanced-markdown th{padding:var(--chat-spacing-sm) var(--chat-spacing-lg);text-align:left;border-bottom:1px solid var(--chat-border-primary)}.enhanced-markdown th{background:var(--chat-bg-secondary);font-weight:var(--chat-font-weight-semibold)}.enhanced-markdown tr:hover{background:var(--chat-bg-hover)}.enhanced-markdown img{max-width:100%;height:auto;border-radius:var(--chat-radius-lg);margin:var(--chat-spacing-lg) 0;box-shadow:var(--chat-shadow-sm);border:1px solid var(--chat-border-primary)}.enhanced-markdown hr{border:0;height:1px;background:var(--chat-border-primary);margin:var(--chat-spacing-2xl) 0}.loading-spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@media (max-width:768px){.chat-header{height:52px;padding:0 var(--chat-spacing-input)}.header-left{gap:var(--chat-spacing-sm)}.messages-container{padding:var(--chat-spacing-lg);padding-bottom:7rem}.input-area-container{padding:var(--chat-spacing-input)}.chatgpt-input-area{border-radius:var(--chat-radius-lg)}}.chat-sidebar-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgba(0,0,0,.5);z-index:999;backdrop-filter:blur(4px)}.chat-sidebar{position:fixed;top:60px;left:0;width:320px;height:calc(100vh - 60px);background:var(--chat-bg-primary);backdrop-filter:blur(20px);border-right:1px solid var(--chat-border);z-index:1000;display:flex;flex-direction:column;transform:translateX(-100%);transition:transform .3s ease;overflow:hidden;border-radius:0 12px 0 0}.chat-sidebar.open{transform:translateX(0)}.chat-sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--chat-border);background:var(--chat-bg-primary);flex-shrink:0;margin-top:0}.chat-sidebar-title{display:flex;align-items:center;gap:.75rem;color:var(--chat-text-primary);font-weight:600;font-size:1.1rem}.chat-sidebar-logo{width:24px;height:24px;object-fit:contain}.chat-sidebar-close{background:none;border:none;color:var(--chat-text-secondary);cursor:pointer;padding:.5rem;border-radius:8px;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.chat-sidebar-close:hover{color:var(--chat-text-primary);background:var(--chat-bg-hover)}.chat-sidebar-new{padding:1rem 1.5rem;border-bottom:1px solid var(--chat-border);flex-shrink:0}.chat-sidebar-new-btn{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 1rem;background:var(--chat-bg-secondary);border:1px solid var(--chat-border);border-radius:12px;color:var(--chat-text-primary);cursor:pointer;transition:all .2s ease;font-size:.95rem;font-weight:500}.chat-sidebar-new-btn:hover{background:var(--chat-bg-primary);border-color:var(--chat-border-color-focus)}.chat-sidebar-conversations{flex:1;overflow-y:auto;padding:1rem 0;min-height:0}.chat-sidebar-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1.5rem;text-align:center;color:var(--chat-text-muted)}.chat-sidebar-empty p:first-child{font-weight:600;margin-bottom:.5rem}.chat-sidebar-empty p:last-child{font-size:.9rem}.chat-sidebar-item{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;cursor:pointer;transition:all .2s ease;border-bottom:1px solid transparent}.chat-sidebar-item:hover{background:var(--chat-bg-secondary)}.chat-sidebar-item.active{background:var(--chat-bg-primary);border-bottom-color:var(--chat-border-color)}.chat-sidebar-item.most-recent{border-left:3px solid var(--chat-accent-color)}.chat-sidebar-item.most-recent .chat-sidebar-item-title:before{content:"🕒 ";margin-right:.25rem;font-size:.8rem}.chat-sidebar-item-content{flex:1;min-width:0}.chat-sidebar-item-title{color:var(--chat-text-primary);font-weight:500;font-size:.95rem;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-sidebar-item-preview{color:var(--chat-text-muted);font-size:.85rem;line-height:1.4;margin-bottom:.25rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.chat-sidebar-item-date{color:var(--chat-text-muted);font-size:.75rem;opacity:.7}.chat-sidebar-item-actions{opacity:0;transition:opacity .2s ease}.chat-sidebar-item.active .chat-sidebar-item-actions,.chat-sidebar-item:hover .chat-sidebar-item-actions{opacity:1}.chat-sidebar-item-delete{opacity:0;transition:opacity .2s ease;background:none;border:none;color:var(--chat-text-primary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center}.chat-sidebar-item-delete:hover{background-color:rgba(255,255,255,.1);color:#ef4444}.chat-sidebar-item:hover .chat-sidebar-item-delete{opacity:1}.chat-sidebar-footer{padding:1rem 1.5rem;border-top:1px solid var(--chat-border-color);background:var(--chat-header-bg);flex-shrink:0}.chat-sidebar-widget-btn{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 1rem;background:var(--chat-bg-secondary);border:1px solid var(--chat-border-color);border-radius:12px;color:var(--chat-text-primary);cursor:pointer;transition:all .2s ease;font-size:.95rem;font-weight:500}.chat-sidebar-widget-btn:hover{background:var(--chat-bg-primary);border-color:var(--chat-border-color-focus)}@media (max-width:768px){.chat-sidebar{width:100vw}.chat-sidebar-footer,.chat-sidebar-header,.chat-sidebar-new{padding:1rem}.chat-sidebar-item{padding:.75rem 1rem}}