:root{--bg:#F6F6F3;--bg-secondary:#EEEEE9;--surface:#FFFFFF;--surface-hover:#F9F9F7;--text:#1A1A1E;--text-secondary:#6E6E78;--text-tertiary:#9E9EA8;--accent:#0D9488;--accent-hover:#0F766E;--accent-light:#CCFBF1;--accent-subtle:rgba(13,148,136,0.08);--border:#E4E4DF;--border-light:#F0F0EB;--shadow-sm:0 1px 3px rgba(0,0,0,0.04);--shadow-md:0 4px 16px rgba(0,0,0,0.06);--shadow-lg:0 8px 40px rgba(0,0,0,0.08);--shadow-glow:0 0 0 3px rgba(13,148,136,0.15), 0 8px 32px rgba(13,148,136,0.1);--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--sidebar-width:280px;--font-sans:'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:'JetBrains Mono', 'Fira Code', monospace;--transition:0.25s cubic-bezier(0.4, 0, 0.2, 1);--code-bg:#F0F0F0;--code-text:#1E1E2E;--code-header-text:#333333;--code-header-border:rgba(0,0,0,0.1);--source-bg:#F0FDFA;--source-border:#99F6E4;--danger:#EF4444;--danger-hover:#DC2626;--shimmer-hi:var(--accent);}[data-theme="dark"]{--bg:#0C0E14;--bg-secondary:#14161E;--surface:#1C1F2A;--surface-hover:#242736;--text:#E4E4EC;--text-secondary:#8A8A9A;--text-tertiary:#5C5C6E;--accent:#2DD4BF;--accent-hover:#14B8A6;--accent-light:#0D3D38;--accent-subtle:rgba(45,212,191,0.08);--border:#2A2D3A;--border-light:#22253A;--shadow-sm:0 1px 3px rgba(0,0,0,0.2);--shadow-md:0 4px 16px rgba(0,0,0,0.25);--shadow-lg:0 8px 40px rgba(0,0,0,0.35);--source-bg:rgba(13,61,56,0.3);--source-border:rgba(45,212,191,0.2);--code-bg:#12131C;--code-text:#CDD6F4;--code-header-text:rgba(255,255,255,0.5);--code-header-border:rgba(255,255,255,0.1);}*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.6;overflow:hidden;height:100vh;transition:background var(--transition), color var(--transition);}a{color:var(--accent);text-decoration:none;}a:hover{text-decoration:underline;}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit;}input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;color:inherit;}::selection{background:var(--accent);color:white;}::-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-tertiary);}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}button:focus:not(:focus-visible),input:focus:not(:focus-visible),textarea:focus:not(:focus-visible){outline:none;}.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;overflow:hidden;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100;transition:transform var(--transition), width var(--transition), background var(--transition), border-color var(--transition);transform:translateX(-100%);}.sidebar.open{transform:translateX(0);}[data-theme="dark"] .sidebar{background:var(--bg);}.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.4);z-index:90;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);}.sidebar-overlay.active{display:block;}.sidebar-header{padding:16px;border-bottom:1px solid var(--border-light);display:flex;flex-direction:column;gap:14px;flex-shrink:0;}.sidebar-header-top{display:flex;align-items:center;justify-content:space-between;}.sidebar-brand{display:flex;align-items:center;gap:10px;cursor:pointer;}.sidebar-brand>svg{flex-shrink:0;padding:7px;background:#ffffff;border-radius:10px;box-sizing:content-box;}[data-theme="light"] .sidebar-brand>svg{background:#000000;}.model-option .st0,.model-option .st1{fill:currentColor;}[data-theme="light"] .message-ai-badge>svg{background:#000000;}.ai-loader{display:flex;align-items:center;padding:8px 0 16px;}.size-lg{width:32px;height:32px;}.ai-loader svg{animation:breathe 2.4s ease-in-out infinite;transform-origin:center;transform-box:fill-box;}@keyframes breathe{0%,100%{transform:scale(1);opacity:1;}50%{transform:scale(1.06);opacity:0.85;}}.ai-loader-pulse svg{animation:none;}.ai-loader-pulse .st0{animation:pulse-fade 1.8s ease-in-out infinite;transform-origin:512px 512px;}.ai-loader-pulse .st1{animation:pulse-fade 1.8s ease-in-out infinite 0.45s;transform-origin:512px 512px;}@keyframes pulse-fade{0%,100%{opacity:1;transform:scale(1);}50%{opacity:0.35;transform:scale(0.93);}}.sidebar-brand-name{font-size:1.3rem;font-weight:700;}.btn-new-chat{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 12px;border-radius:var(--radius-md);background:var(--accent-subtle);color:var(--accent);font-weight:600;font-size:0.875rem;transition:all var(--transition);flex-shrink:0;}.btn-new-chat:hover{background:var(--accent-light);transform:translateY(-1px);}.sidebar-history{flex:1;overflow-y:auto;overflow-x:hidden;min-height:0;padding-top:6px;}.sidebar-history-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;color:var(--text-tertiary);font-size:0.8rem;text-align:center;gap:8px;}@keyframes spin{to{transform:rotate(360deg);}}.history-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:26px 16px;min-height:104px;text-align:center;color:var(--text-tertiary);font-size:0.8rem;line-height:1.45;}.history-state-spinner{width:22px;height:22px;border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0;}.history-state svg{opacity:.3;flex-shrink:0;}.history-state span{max-width:190px;}.sidebar-history:has(.history-empty-state){display:flex;flex-direction:column;}.sidebar-history:has(.history-empty-state) .history-items-wrap{flex:1;display:flex;flex-direction:column;min-height:0;}.sidebar-history:has(.history-empty-state) #historyListInner{flex:1;display:flex;flex-direction:column;justify-content:center;}.history-section-btn{display:flex;align-items:center;gap:8px;width:100%;padding:8px 12px;border-radius:var(--radius-sm);font-size:0.72rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);text-transform:uppercase;letter-spacing:0.05em;text-align:left;}.history-section-btn:hover{background:var(--bg-secondary);color:var(--text);}.history-section-label{flex:1;}.history-section-chevron{flex-shrink:0;transition:transform var(--transition);opacity:.6;transform:rotate(-90deg);}.history-section-btn.open .history-section-chevron{transform:rotate(0deg);}.history-items-wrap{padding:0 8px 8px;}.history-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:var(--radius-sm);font-size:0.85rem;color:var(--text-secondary);transition:all var(--transition);position:relative;text-align:left;}.history-item:hover{background:var(--surface-hover);color:var(--text);}.history-item.active{background:var(--accent-subtle);color:var(--accent);font-weight:500;}.history-item-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}.history-item-delete{opacity:0;padding:4px;border-radius:6px;color:var(--text-tertiary);transition:all var(--transition);flex-shrink:0;}.history-item:hover .history-item-delete{opacity:1;}.history-item-delete:hover{color:var(--danger);background:rgba(239,68,68,0.1);}.history-date{font-size:0.7rem;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-tertiary);padding:10px 12px 4px;}.sidebar-search-wrap{padding:8px 0 4px;}.sidebar-search-inner{display:flex;align-items:center;gap:7px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:7px 10px;transition:border-color .15s;}.sidebar-search-inner:focus-within{border-color:var(--accent);}.sidebar-search-inner input{flex:1;background:none;border:none;outline:none;font-size:.82rem;color:var(--text);font-family:inherit;caret-color:var(--accent);}.sidebar-search-inner input::placeholder{color:var(--text-secondary);opacity:.7;}.sidebar-footer{flex-shrink:0;padding:10px 10px 14px;display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--border-light);}.btn-sidebar-action{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px;border-radius:var(--radius-sm);font-size:0.82rem;color:var(--text-secondary);transition:all var(--transition);text-align:left;}.btn-sidebar-action:hover{background:var(--surface-hover);color:var(--text);}.btn-sidebar-action.btn-danger:hover{background:rgba(239,68,68,0.08);color:var(--danger);}.answer-actions{display:flex;gap:4px;margin-top:14px;flex-wrap:wrap;}.btn-action{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border-radius:var(--radius-full);font-size:0.78rem;color:var(--text-tertiary);transition:all var(--transition);font-family:inherit;cursor:pointer;}.btn-action:hover{background:var(--surface-hover);color:var(--text-secondary);}.btn-action svg{flex-shrink:0;}.user-profile-syniray{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-md);background:var(--bg-secondary);border:1px solid var(--border);cursor:pointer;transition:background var(--transition);}.user-profile-syniray:hover{background:var(--surface-hover);}.sidebar.open .user-profile-syniray{background:transparent;border-color:transparent;}.sidebar.open .user-profile-syniray:hover{background:var(--surface-hover);}.user-info-syniray{display:flex;flex-direction:column;min-width:0;flex:1;}.profile-menu-syniray{display:none;position:fixed;z-index:10000;width:228px;right:auto;top:auto;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:0 8px 32px rgba(0,0,0,.26);padding:8px;}.profile-menu-syniray.menu-visible{display:block;animation:slideUp .18s cubic-bezier(0.16,1,.3,1);}@keyframes slideUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.profile-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:var(--radius-sm);font-size:.82rem;color:var(--text-secondary);transition:all .2s;text-align:left;background:none;border:none;cursor:pointer;font-family:inherit;}.profile-menu-item:hover{background:var(--surface-hover);color:var(--text);}.icon-sun{display:block;}.icon-moon{display:none;}[data-theme="dark"] .icon-sun{display:none;}[data-theme="dark"] .icon-moon{display:block;}.sidebar-menu-btn{flex-shrink:0;width:36px;height:36px;background:var(--surface-hover);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);display:flex;align-items:center;justify-content:center;}.sidebar-menu-btn:hover{background:var(--border);color:var(--text);}.menu-toggle-btn{position:fixed;top:8px;left:16px;z-index:200;width:40px;height:40px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border);color:var(--text-secondary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition);box-shadow:var(--shadow-sm);}.menu-toggle-btn:hover{background:var(--surface-hover);color:var(--text);}.sidebar.open .sidebar-menu-btn{display:flex;}.sidebar:not(.open) .sidebar-menu-btn{display:none;}.sidebar.open ~ .main-content .menu-toggle-btn{display:none;}.sidebar:not(.open) ~ .main-content .menu-toggle-btn{display:flex;}.main-content{margin-left:0;height:100vh;display:flex;flex-direction:column;overflow:hidden;transition:margin-left var(--transition);position:relative;}.sidebar.open ~ .main-content{margin-left:var(--sidebar-width);}.home-view{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;position:relative;overflow:auto;}.home-view.hidden{display:none;}.home-bg-orbs{position:absolute;inset:0;pointer-events:none;overflow:hidden;}.orb{position:absolute;border-radius:50%;filter:blur(100px);opacity:0.12;}.orb-1{width:500px;height:500px;background:var(--accent);top:-150px;right:-100px;animation:orbFloat1 25s ease-in-out infinite;}.orb-2{width:350px;height:350px;background:#F59E0B;bottom:-80px;left:-60px;animation:orbFloat2 20s ease-in-out infinite;}.orb-3{width:250px;height:250px;background:#EC4899;top:50%;left:50%;animation:orbFloat3 22s ease-in-out infinite;}[data-theme="dark"] .orb{opacity:0.06;}@keyframes orbFloat1{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(-40px,30px) scale(1.08)}66%{transform:translate(30px,-20px) scale(0.95)}}@keyframes orbFloat2{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(30px,-40px) scale(1.05)}66%{transform:translate(-20px,20px) scale(0.92)}}@keyframes orbFloat3{0%,100%{transform:translate(-50%,-50%) scale(1)}33%{transform:translate(calc(-50% + 50px),calc(-50% - 30px)) scale(1.1)}66%{transform:translate(calc(-50% - 40px),calc(-50% + 40px)) scale(0.9)}}.home-hero{text-align:center;margin-bottom:40px;position:relative;z-index:1;animation:heroFadeIn 0.8s ease-out;}@keyframes heroFadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.home-logo{margin-bottom:12px;display:inline-flex;align-items:center;justify-content:center;animation:logoFloat 6s ease-in-out infinite;width:56px;height:56px;border-radius:13px;background:#ffffff;}[data-theme="light"] .home-logo{background:#000000;}@keyframes logoFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}.home-title{font-size:2.8rem;font-weight:800;letter-spacing:-0.03em;line-height:1.3;margin-bottom:8px;display:flex;justify-content:center;align-items:center;gap:8px;width:100%;text-align:center;}.home-subtitle{font-size:1.05rem;color:var(--text-secondary);font-weight:400;}.shimmer-word{background:linear-gradient(90deg, var(--text) 0%, var(--text) 38%, var(--shimmer-hi) 50%, var(--text) 62%, var(--text) 100%);background-size:280% 100%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:wordShimmer 5s linear infinite;}@keyframes wordShimmer{0%{background-position:130% 0}100%{background-position:-30% 0}}.plan-badge{-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:inherit;font-weight:800;}.search-container{width:100%;max-width:680px;position:relative;z-index:1;animation:heroFadeIn 0.8s ease-out 0.15s both;}.search-bar{display:flex;flex-direction:column;gap:12px;padding:14px 18px;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);transition:all var(--transition);}.search-bar:focus-within{border-color:var(--border);box-shadow:none;outline:none;}.search-input-wrapper{display:flex;align-items:flex-start;gap:12px;width:100%;}.search-input-wrapper .search-icon{flex-shrink:0;margin-top:6px;color:var(--text-tertiary);}.search-input-wrapper textarea{flex:1;font-size:1rem;padding:4px 0;color:var(--text);min-width:0;resize:none;line-height:1.5;font-family:inherit;background:transparent;border:none;outline:none;max-height:200px;overflow-y:auto;}.search-input-wrapper textarea::placeholder{color:var(--text-tertiary);}.search-actions{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}.search-actions-left,.search-actions-right{display:flex;align-items:center;gap:8px;}.search-icon{color:var(--text-tertiary);flex-shrink:0;}.search-submit{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-full);background:var(--accent);color:white;flex-shrink:0;transition:all var(--transition);}.search-submit:hover{background:var(--accent-hover);transform:scale(1.05);}.search-submit:disabled{opacity:0.4;cursor:not-allowed;}.action-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-full);background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary);transition:all var(--transition);cursor:pointer;}.action-btn:hover{background:var(--surface-hover);border-color:var(--accent);color:var(--accent);transform:scale(1.02);}.action-btn-disabled,.action-btn:disabled{cursor:not-allowed;}.action-btn-disabled svg,.action-btn:disabled svg{opacity:0.35;}.action-btn-disabled:hover,.action-btn:disabled:hover{background:var(--bg-secondary);border-color:var(--border);color:var(--text-secondary);transform:none;}[data-tooltip]{position:relative;}[data-tooltip]:hover::after{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);padding:8px 12px;background:var(--bg-primary);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-md);font-size:0.8rem;line-height:1.4;white-space:normal;width:max-content;max-width:260px;text-align:center;z-index:1000;box-shadow:0 6px 20px rgba(0,0,0,0.35);pointer-events:none;animation:fadeIn 0.15s ease-out;}[data-tooltip]:hover::before{content:'';position:absolute;bottom:calc(100% + 3px);left:50%;transform:translateX(-50%);border:5px solid transparent;border-top-color:var(--border);z-index:1000;pointer-events:none;}.search-suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px;}.suggestion-chip{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-full);background:var(--surface);border:1px solid var(--border);font-size:0.82rem;color:var(--text-secondary);transition:all var(--transition);white-space:nowrap;}.suggestion-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-subtle);transform:translateY(-2px);box-shadow:var(--shadow-sm);}.model-selector{position:relative;flex-shrink:0;}.model-selector-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;background:var(--bg-secondary);border-radius:var(--radius-full);font-size:0.85rem;font-weight:500;color:var(--text);border:1px solid var(--border);transition:all var(--transition);cursor:pointer;white-space:nowrap;}.model-selector-btn:hover{background:var(--surface-hover);border-color:var(--accent);}.model-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:260px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1000;display:none;flex-direction:column;overflow:hidden;backdrop-filter:blur(8px);}.model-options-scroll{overflow-y:auto;max-height:min(60vh,310px);}.model-dropdown.open{display:flex;}#chatModelSelector .model-dropdown{top:auto;bottom:calc(100% + 8px);right:0;}.model-option{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;font-size:0.85rem;cursor:pointer;transition:background var(--transition);border-bottom:1px solid var(--border-light);gap:8px;width:100%;}.model-option:last-child{border-bottom:none;}.model-option:hover{background:var(--surface-hover);}.model-option.active{background:var(--accent-subtle);color:var(--accent);font-weight:500;}.model-option.active::after{content:" ✓";font-weight:bold;}.model-option-left{flex:1;min-width:0;display:flex;align-items:center;gap:8px;}.model-option[data-locked="true"]{position:relative;}.model-option[data-locked="true"]::after{content:"";position:absolute;inset:0;background:rgba(0,0,0,0.3);pointer-events:none;border-radius:inherit;z-index:1;}.model-option[data-locked="true"] .model-option-left{opacity:0.5;}[data-theme="dark"] .model-option[data-locked="true"]::after{background:rgba(0,0,0,0.4);}.model-badge-free,.model-badge-pro,.model-badge-max{display:inline-flex;align-items:center;justify-content:center;height:18px;padding:0 7px;box-sizing:border-box;font-size:0.68rem;font-weight:600;line-height:1;letter-spacing:.01em;text-transform:none;background:var(--accent-light);color:var(--text);border-radius:var(--radius-full);flex-shrink:0;}.model-option[data-locked="true"] .model-badge-free,.model-option[data-locked="true"] .model-badge-pro,.model-option[data-locked="true"] .model-badge-max{position:relative;z-index:2;}.lock-icon{flex-shrink:0;opacity:.5;}.model-premium-upsell{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--accent-subtle);font-size:0.75rem;color:var(--accent);border-top:1px solid var(--border);cursor:pointer;transition:background var(--transition);}.model-premium-upsell:hover{background:var(--accent-light);}.chat-view{display:flex;flex-direction:column;height:100%;width:100%;}.chat-view.hidden{display:none!important;}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border-light);flex-shrink:0;min-height:44px;background:var(--bg);}.chat-title{font-weight:600;font-size:0.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}.btn-icon{display:flex;align-items:center;justify-content:center;width:31px;height:31px;border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition);}.btn-icon:hover{background:var(--surface-hover);color:var(--text);}.chat-messages{flex:1;overflow-y:auto;padding:24px 0;scroll-behavior:smooth;}.chat-input-area{flex-shrink:0;padding:16px 24px 20px;background:linear-gradient(to top, var(--bg) 60%, transparent);width:100%;}.chat-title-wrap{position:relative;display:flex;align-items:center;flex:1;min-width:0;}.chat-title-btn{display:flex;align-items:center;gap:6px;padding:6px 10px;border:none;background:transparent;cursor:pointer;border-radius:8px;max-width:100%;transition:background .15s;font-family:inherit;}.chat-title-btn:hover{background:var(--bg-secondary);}.chat-title-btn span{font-size:.88rem;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(320px,42vw);}.chat-title-chevron{opacity:.5;flex-shrink:0;transition:transform .2s;}.chat-title-btn.open .chat-title-chevron{transform:rotate(180deg);}.chat-title-menu{position:absolute;top:calc(100% + 8px);left:0;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:0 8px 32px rgba(0,0,0,.18);padding:6px;min-width:190px;z-index:200;animation:ctMenuIn .15s ease;}@keyframes ctMenuIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.chat-title-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border:none;background:none;color:var(--text);font-size:.83rem;font-weight:500;cursor:pointer;border-radius:8px;transition:background .15s;font-family:inherit;text-align:left;}.chat-title-menu-item:hover{background:var(--bg-secondary);}.chat-title-menu-danger{color:var(--danger)!important;}.btn-share-chat{display:flex;align-items:center;gap:6px;padding:7px 14px;border:1.5px solid var(--border);background:transparent;color:var(--text-secondary);font-size:.79rem;font-weight:600;border-radius:10px;cursor:pointer;transition:all .2s;font-family:inherit;flex-shrink:0;white-space:nowrap;}.btn-share-chat:hover{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 6%,transparent);}.message{max-width:780px;margin:0 auto;padding:0 24px;animation:msgFadeIn 0.4s ease-out;}@keyframes msgFadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.message + .message{margin-top:28px;}.message-user{padding-top:20px;display:flex;justify-content:flex-end;}.message-user-bubble{display:inline-flex;align-items:flex-start;gap:12px;padding:14px 18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-lg);font-size:0.95rem;line-height:1.6;box-shadow:var(--shadow-sm);white-space:pre-wrap;word-break:break-word;max-width:85%;}.message-user-avatar{width:28px;height:28px;border-radius:var(--radius-sm);background:var(--accent);color:white;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:0.75rem;font-weight:700;overflow:hidden;}.message-user-avatar img{width:100%;height:100%;object-fit:cover;display:block;}.message-user-text{display:flex;flex-direction:column;align-items:flex-end;gap:0;}.message-attachment-badge{display:inline-flex;align-items:center;gap:4px;background:var(--accent-subtle);border:1px solid var(--source-border);color:var(--accent);padding:3px 10px;border-radius:var(--radius-full);font-size:0.78rem;margin-top:8px;}.message-attachment-badge-clickable{cursor:pointer;transition:all var(--transition);}.message-attachment-badge-clickable:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}.message-attachment-badge-clickable:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}.image-lightbox-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.85);z-index:9999;align-items:center;justify-content:center;padding:32px;animation:fadeIn 0.15s ease-out;}.image-lightbox-overlay.visible{display:flex;}.image-lightbox-img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;box-shadow:0 10px 40px rgba(0,0,0,0.5);}.image-lightbox-close{position:fixed;top:20px;right:20px;display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);border-radius:50%;color:#fff;cursor:pointer;transition:all var(--transition);}.image-lightbox-close:hover{background:rgba(255,255,255,0.2);transform:scale(1.05);}.message-ai{padding-top:12px;}.message-ai-header{display:flex;align-items:center;gap:3px;margin-bottom:10px;}.message-ai-badge{display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);flex-shrink:0;overflow:hidden;}.message-ai-badge svg{transition:all 0.2s ease;flex-shrink:0;padding:4px;background:#ffffff;box-sizing:content-box;}.message-ai-label{font-size:0.78rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.04em;padding:10px 8px;}.sources-section{margin-bottom:16px;}.sources-toggle{display:inline-flex;align-items:center;gap:6px;font-size:0.82rem;font-weight:600;color:var(--accent);cursor:pointer;padding:4px 0;transition:opacity var(--transition);}.sources-toggle:hover{opacity:0.8;}.sources-toggle.open svg:last-child{transform:rotate(180deg);}.sources-grid{display:none;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px;margin-top:10px;}.sources-grid.open{display:grid;animation:sourcesFadeIn 0.3s ease-out;}@keyframes sourcesFadeIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.source-card{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--source-bg);border:1px solid var(--source-border);transition:all var(--transition);text-decoration:none;color:var(--text);}.source-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm);text-decoration:none;}.source-icon{width:24px;height:24px;border-radius:6px;background:var(--accent);color:white;display:flex;align-items:center;justify-content:center;font-size:0.65rem;font-weight:800;flex-shrink:0;}.source-info{min-width:0;}.source-title{display:block;font-size:0.8rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}.source-snippet{display:block;font-size:0.72rem;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:2px;}.videos-section{margin-top:16px;}.videos-label{display:flex;align-items:center;gap:6px;font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-tertiary);margin-bottom:10px;}.videos-grid{display:flex;flex-direction:column;gap:8px;}.video-card{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--source-bg);border:1px solid var(--source-border);text-decoration:none;color:var(--text);transition:all var(--transition);font-size:0.83rem;}.video-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm);text-decoration:none;}.video-icon{width:28px;height:28px;background:#FF0000;border-radius:6px;display:flex;align-items:center;justify-content:center;color:white;flex-shrink:0;}.video-title{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;}.answer-content{font-size:0.93rem;line-height:1.75;color:var(--text);}.answer-content p{margin-bottom:12px;}.answer-content p:last-child{margin-bottom:0;}.answer-content h1{font-size:1.4rem;font-weight:700;margin:24px 0 12px;}.answer-content h2{font-size:1.2rem;font-weight:700;margin:20px 0 10px;}.answer-content h3{font-size:1.05rem;font-weight:600;margin:16px 0 8px;}.answer-content h4{font-size:0.95rem;font-weight:600;margin:14px 0 6px;}.answer-content ul,.answer-content ol{margin:8px 0 12px 20px;}.answer-content li{margin-bottom:6px;}.answer-content li>ul,.answer-content li>ol{margin:6px 0 6px 20px;}.answer-content ul ul{list-style-type:circle;}.answer-content ul ul ul{list-style-type:square;}.answer-content blockquote{border-left:3px solid var(--accent);padding:8px 16px;margin:12px 0;background:var(--accent-subtle);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic;color:var(--text-secondary);}.answer-content a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;}.answer-content img{max-width:100%;border-radius:var(--radius-sm);margin:8px 0;}.answer-content hr{border:none;border-top:1px solid var(--border-light);margin:16px 0 12px;}.answer-content>p:first-child:last-child{font-size:0.95rem;}.answer-divider{border:none;border-top:1px solid var(--border-light);margin:16px 0 12px;}.follow-up-section{margin-top:16px;padding-top:14px;border-top:1px solid var(--border-light);}.follow-up-label{font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-tertiary);margin-bottom:10px;}.follow-up-chips{display:flex;flex-wrap:wrap;gap:8px;}.follow-up-chip{display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--radius-full);border:1.5px solid var(--border);background:var(--surface);color:var(--text-secondary);font-size:0.82rem;font-family:inherit;cursor:pointer;transition:all var(--transition);text-align:left;line-height:1.4;}.follow-up-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-subtle);transform:translateY(-1px);}.inline-code{font-family:var(--font-mono);font-size:0.85em;padding:2px 7px;border-radius:5px;background:var(--bg-secondary);color:var(--accent);border:1px solid var(--border);}.code-block{margin:14px 0;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);}.code-header{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:var(--code-bg);font-size:0.75rem;color:var(--code-text);font-family:var(--font-mono);border-bottom:1px solid var(--code-header-border);}.btn-copy-code{padding:3px 10px;border-radius:6px;font-size:0.72rem;color:var(--code-header-text);background:rgba(128,128,128,0.1);border:1px solid var(--code-header-border);cursor:pointer;transition:all 0.2s ease;font-family:inherit;}.btn-copy-code:hover{background:rgba(128,128,128,0.2);color:var(--text);}.code-block pre{margin:0;padding:16px;background:var(--code-bg);overflow-x:hidden;}.code-block code,.code-block pre code{font-family:var(--font-mono);font-size:0.82rem;line-height:1.7;color:var(--code-text);white-space:pre-wrap;word-break:break-word;}.loading-dots{display:flex;align-items:center;gap:5px;padding:8px 0 16px;}.loading-dots span{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:dotPulse 1.4s ease-in-out infinite;}.loading-dots span:nth-child(2){animation-delay:0.2s;}.loading-dots span:nth-child(3){animation-delay:0.4s;}@keyframes dotPulse{0%,80%,100%{transform:scale(0.5);opacity:0.3}40%{transform:scale(1);opacity:1}}.model-used-tag{font-size:0.76rem;color:var(--text-tertiary);margin:10px 0 0;padding:0;}.chat-input-container{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px;padding:14px 18px;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:all var(--transition);}.chat-input-container:focus-within{border-color:var(--accent);box-shadow:var(--shadow-glow);}.chat-input-wrapper textarea{width:100%;resize:none;font-size:0.93rem;line-height:1.5;padding:4px 0;min-height:24px;max-height:160px;background:transparent;border:none;outline:none;color:var(--text);font-family:inherit;}.chat-input-wrapper textarea::placeholder{color:var(--text-tertiary);}.chat-actions{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}.chat-actions-left,.chat-actions-right{display:flex;align-items:center;gap:8px;}.chat-submit{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-full);background:var(--accent);color:white;flex-shrink:0;transition:all var(--transition);}.chat-submit:hover{background:var(--accent-hover);transform:scale(1.05);}.chat-submit:disabled{opacity:0.4;cursor:not-allowed;transform:none;}.chat-disclaimer{text-align:center;font-size:0.72rem;color:var(--text-tertiary);margin-top:8px;max-width:780px;margin-left:auto;margin-right:auto;}.image-preview{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:40px;width:200px;transition:all var(--transition);}.image-preview-img{width:32px;height:32px;object-fit:cover;border-radius:8px;background:var(--bg-secondary);border:1px solid var(--border);}.image-preview-filename{flex:1;font-size:0.85rem;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}.image-preview-remove{display:flex;align-items:center;justify-content:center;width:24px;height:24px;background:var(--surface-hover);border-radius:50%;color:var(--text-tertiary);cursor:pointer;transition:all var(--transition);flex-shrink:0;}.image-preview-remove:hover{background:var(--danger);color:white;transform:scale(1.05);}.image-preview{flex-wrap:wrap;width:auto;max-width:100%;}.file-preview-chip{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--accent-subtle);border:1px solid var(--border);border-radius:40px;max-width:200px;transition:all var(--transition);}.toast-container{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:10100;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none;}.toast{padding:10px 20px;border-radius:var(--radius-md);background:var(--surface);color:var(--text);box-shadow:var(--shadow-lg);border:1px solid var(--border);font-size:0.85rem;opacity:0;transform:translateY(12px) scale(0.95);transition:all 0.3s ease;pointer-events:auto;max-width:360px;text-align:center;}.toast.show{opacity:1;transform:translateY(0) scale(1);}.toast-error{border-left:4px solid var(--danger);}.toast-success{border-left:4px solid var(--accent);}.toast-info{border-left:4px solid var(--accent);}.custom-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10001;display:flex;align-items:center;justify-content:center;}.custom-modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;backdrop-filter:blur(4px);background:rgba(0,0,0,0.2);}.custom-modal-container{position:relative;background:var(--bg);border-radius:var(--radius-lg);max-width:450px;width:90%;box-shadow:var(--shadow-lg);border:1px solid var(--border);animation:modalFadeIn 0.2s ease-out;z-index:10002;}@keyframes modalFadeIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}.custom-modal-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border);}.custom-modal-header h3{font-size:1.1rem;font-weight:600;}.modal-close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-secondary);line-height:1;padding:0 4px;transition:color var(--transition);}.modal-close-btn:hover{color:var(--text);}.custom-modal-body{padding:1.5rem;font-size:0.93rem;line-height:1.6;color:var(--text-secondary);}.custom-modal-footer{display:flex;justify-content:flex-end;gap:12px;padding:1rem 1.5rem;border-top:1px solid var(--border);}.modal-btn{padding:8px 18px;border-radius:var(--radius-md);font-weight:600;font-size:0.88rem;font-family:inherit;cursor:pointer;transition:all 0.2s ease;border:none;}.modal-btn-primary{background:var(--accent);color:white;}.modal-btn-primary:hover{background:var(--accent-hover);}.modal-btn-secondary{background:var(--bg-secondary);color:var(--text);border:1px solid var(--border);}.modal-btn-secondary:hover{background:var(--surface-hover);}.modal-btn-danger{background:var(--danger);color:white;}.modal-btn-danger:hover{background:var(--danger-hover);}.ai-footer{font-size:0.85rem;background:var(--accent-subtle);padding:12px 16px;border-radius:var(--radius-md);margin:16px 0 8px;line-height:1.5;}.feat-result-body blockquote.ai-footer{font-style:normal;border-left:0;padding:12px 16px;border-radius:var(--radius-md);margin:16px 0 8px;}.settings-modal-container{max-width:900px;width:94%;height:640px;max-height:85vh;border-radius:20px;padding:0;overflow:hidden;display:flex;flex-direction:column;position:relative;}.settings-close-x{position:absolute;top:16px;right:16px;z-index:5;width:32px;height:32px;border-radius:50%;border:none;background:var(--bg-secondary);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s;}.settings-close-x svg{display:block;}.settings-close-x:hover{background:var(--border);color:var(--text);}.settings-layout{display:flex;flex:1;min-height:0;}.settings-sidebar{width:216px;flex-shrink:0;background:var(--bg-secondary);border-right:1px solid var(--border);padding:22px 12px 16px;display:flex;flex-direction:column;gap:2px;overflow-y:auto;}.settings-sidebar-title{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);padding:0 10px 14px;}.settings-sidebar .settings-tab-btn{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;border:none;background:transparent;color:var(--text-secondary);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .15s ease;text-align:left;width:100%;white-space:nowrap;margin-bottom:0;border-bottom:none;}.settings-sidebar .settings-tab-btn svg{flex-shrink:0;opacity:.75;transition:opacity .15s;}.settings-sidebar .settings-tab-btn:hover{background:var(--surface-hover);color:var(--text);}.settings-sidebar .settings-tab-btn.active{background:var(--accent-subtle);color:var(--accent);font-weight:700;}.settings-sidebar .settings-tab-btn.active svg{opacity:1;}.settings-tab-pro-badge{display:none;margin-left:auto;font-size:.62rem;font-weight:800;letter-spacing:.03em;color:#1a1a1a;background:linear-gradient(135deg,#ffd76a,#ffb347);padding:2px 6px;border-radius:20px;flex-shrink:0;}.settings-sidebar .settings-tab-btn.locked{opacity:.6;}.settings-sidebar .settings-tab-btn.locked:hover{opacity:.85;}.settings-content{flex:1;overflow-y:auto;padding:30px 34px 24px;min-width:0;}.settings-content-title{font-size:1.28rem;font-weight:800;color:var(--text);margin-bottom:4px;letter-spacing:-.01em;}.settings-content-desc{font-size:.85rem;color:var(--text-secondary);margin-bottom:22px;line-height:1.5;}.settings-section-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:14px;padding:20px;}.theme-toggle-group{display:flex;gap:8px;}.theme-toggle-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:9px 14px;border-radius:10px;border:1.5px solid var(--border);background:var(--bg);color:var(--text-secondary);font-size:.82rem;font-weight:600;cursor:pointer;transition:all .15s ease;}.theme-toggle-btn:hover{border-color:var(--text-tertiary);color:var(--text);}.theme-toggle-btn.active{border-color:var(--accent);background:var(--accent-subtle);color:var(--accent);}.settings-toggle-switch{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0;}.settings-toggle-switch input{opacity:0;width:0;height:0;position:absolute;}.settings-toggle-slider{position:absolute;cursor:pointer;inset:0;background:var(--border);transition:.2s ease;border-radius:24px;}.settings-toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background:#fff;transition:.2s ease;border-radius:50%;}.settings-toggle-switch input:checked + .settings-toggle-slider{background:var(--accent);}.settings-toggle-switch input:checked + .settings-toggle-slider:before{transform:translateX(20px);}.settings-memory-list{display:flex;flex-direction:column;gap:8px;}.settings-memory-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:8px;background:var(--bg);border:1px solid var(--border);font-size:.85rem;color:var(--text);line-height:1.4;}.settings-memory-empty{text-align:center;padding:22px 10px;color:var(--text-tertiary);font-size:.85rem;}.settings-memory-delete{flex-shrink:0;background:none;border:none;color:var(--text-tertiary);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .15s;}.settings-memory-delete:hover{color:var(--danger);background:rgba(239,68,68,.1);}.settings-session-item{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:12px;background:var(--bg-secondary);border:1px solid var(--border);margin-bottom:10px;}.settings-session-icon{flex-shrink:0;width:38px;height:38px;border-radius:10px;background:var(--bg);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);}.settings-session-info{flex:1;min-width:0;}.settings-session-device{font-weight:700;font-size:.86rem;color:var(--text);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}.settings-session-current-badge{font-size:.68rem;font-weight:700;color:var(--accent);background:var(--accent-subtle);padding:2px 8px;border-radius:20px;}.settings-session-meta{font-size:.78rem;color:var(--text-secondary);margin-top:3px;}.settings-session-time{font-size:.74rem;color:var(--text-tertiary);margin-top:4px;}.settings-help-card{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px;}.settings-help-lead{margin-bottom:20px;}.settings-help-text{min-width:0;}.settings-help-title{font-weight:700;font-size:.9rem;color:var(--text);}.settings-help-desc{font-size:.78rem;color:var(--text-secondary);margin-top:2px;line-height:1.5;}.settings-help-address{font-family:var(--font-mono, ui-monospace, monospace);font-size:.76rem;color:var(--accent);margin-top:6px;overflow-wrap:anywhere;}.settings-help-group-title{font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin:4px 0 4px;}.settings-help-group-desc{font-size:.78rem;color:var(--text-secondary);margin:0 0 12px;line-height:1.5;}.settings-help-card>.sbtn{flex:none;}@media (max-width:560px){.settings-help-card{flex-direction:column;align-items:stretch;}.settings-help-card>.sbtn{align-self:flex-start;}}.settings-usage-item{padding:12px 14px;border-radius:10px;background:var(--bg-secondary);border:1px solid var(--border);margin-bottom:8px;}.settings-usage-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:4px;}.settings-usage-feature{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--accent);background:var(--accent-subtle);padding:2px 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var(--border);border-radius:12px;overflow-x:auto;background:var(--bg-secondary);}.settings-billing-table{width:100%;border-collapse:collapse;font-size:.84rem;}.settings-billing-table th{text-align:left;font-weight:600;font-size:.74rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text-secondary);padding:10px 14px;border-bottom:1px solid var(--border);white-space:nowrap;}.settings-billing-table td{padding:11px 14px;border-bottom:1px solid var(--border-light);color:var(--text);white-space:nowrap;}.settings-billing-table tr:last-child td{border-bottom:none;}.settings-billing-table .is-actions{text-align:right;}.settings-billing-total{font-variant-numeric:tabular-nums;font-weight:600;}.settings-billing-empty{text-align:center!important;color:var(--text-tertiary)!important;padding:20px 14px!important;white-space:normal!important;}.settings-billing-status{display:inline-flex;align-items:center;gap:5px;font-size:.74rem;font-weight:600;padding:2px 9px;border-radius:999px;border:1px 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var(--border);flex-shrink:0;}.cp-refresh-btn{display:flex;align-items:center;gap:5px;padding:4px 10px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);font-size:.72rem;font-weight:600;border-radius:6px;cursor:pointer;font-family:inherit;transition:all .15s;}.cp-refresh-btn:hover{border-color:var(--accent);color:var(--accent);}#sbPillTooltip{position:fixed;z-index:99999;background:var(--surface);border:1px solid var(--border);border-radius:99px;padding:6px 14px;font-size:.78rem;font-weight:600;color:var(--text);white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .12s ease;box-shadow:0 4px 18px rgba(0,0,0,.22);transform:translateY(-50%);}.reasoning-container{margin:16px 0;background:rgba(13,148,136,0.03);border:1.5px dashed rgba(13,148,136,0.2);border-radius:var(--radius-lg);padding:16px 20px;animation:fadeIn 0.4s cubic-bezier(0.16,1,0.3,1);transition:all var(--transition);}[data-theme="dark"] 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