.app-container{font-family:system-ui}.app-container,.sidebar{display:flex;height:100vh}.sidebar{position:fixed;left:0;top:0;bottom:0;width:280px;background:var(--sidebar-bg);color:var(--sidebar-fg);box-shadow:2px 0 8px rgba(0,0,0,.1);transition:transform .3s ease;z-index:100;padding:10px;flex-direction:column;justify-content:space-between}.sidebar.closed:not(.mobile){transform:translateX(-100%)}.sidebar.mobile{width:80%;z-index:200}.sidebar-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--overlay);z-index:150}.sidebar-toggle{position:fixed;left:20px;top:20px;width:40px;height:40px;border:1px solid var(--border);border-radius:50%;background:var(--surface-1);color:var(--foreground);box-shadow:0 2px 8px rgba(0,0,0,.1);cursor:pointer;z-index:300;transition:all .3s ease}.sidebar-toggle.collapsed{left:20px}.toggle-icon{width:24px;height:24px;fill:currentColor}.floating-settings-btn{position:fixed;left:20px;bottom:20px;width:50px;height:50px;border:none;border-radius:50%;background:var(--primary);color:var(--on-primary);box-shadow:0 2px 8px rgba(0,0,0,.2);cursor:pointer}.floating-settings-btn:hover{background:var(--primary-hover)}.NewConvBtn{background:var(--primary);margin:10px 0}.sidebar button{width:100%;padding:10px;color:var(--on-primary);border:none;border-radius:5px;cursor:pointer;line-height:1}.history-list{flex:1 1}.history-list>div{padding:10px;margin:10px 0;background:var(--surface-1);color:var(--foreground);border-radius:5px;cursor:pointer;transition:background .2s}.history-list>div:hover{background:var(--sidebar-item-hover-bg)}.history-list .active{background:var(--sidebar-item-active-bg)}.sidebar-footer{border-top:1px solid var(--border);padding:15px}.settings-btn{width:auto;padding:10px;background:var(--primary);border:none;color:var(--on-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:background .2s}.settings-btn:hover{background:var(--primary-hover)}.gear-icon{width:18px;height:18px;fill:currentColor}.react-markdown-container{color:var(--md-fg);line-height:1.75;font-size:16px}.react-markdown-container h1{font-size:1.8rem;font-weight:700;margin:1.2em 0 .6em}.react-markdown-container h2{font-size:1.5rem;font-weight:650;margin:1.1em 0 .55em}.react-markdown-container h3{font-size:1.25rem;font-weight:600;margin:1em 0 .5em}.react-markdown-container h4{font-size:1.1rem;font-weight:600;margin:.9em 0 .45em}.react-markdown-container h5{font-size:1rem;font-weight:600;margin:.8em 0 .4em}.react-markdown-container h6{font-size:.95rem;font-weight:600;margin:.7em 0 .35em;opacity:.9}.react-markdown-container p{margin:.75em 0}.react-markdown-container ol,.react-markdown-container ul{padding-left:1.5em;margin:.6em 0}.react-markdown-container li{margin:.3em 0}.react-markdown-container ul{list-style:disc}.react-markdown-container ol{list-style:decimal}.react-markdown-container blockquote{background:var(--md-quote-bg);border-left:4px solid var(--md-quote-border);padding:.8em 1em;margin:1em 0;border-radius:4px}.react-markdown-container blockquote p{margin:.4em 0}.react-markdown-container hr{border:none;border-top:1px solid var(--border);margin:1.5em 0}.react-markdown-container img{max-width:100%;height:auto}.markdown-table td,.markdown-table th{padding:.5em .75em}.react-markdown-container pre{background:var(--code-bg);color:var(--code-fg);padding:1em;border-radius:8px;overflow:auto}.react-markdown-container pre code{background:transparent;color:inherit;padding:0}.react-markdown-container a{color:var(--md-link)}.react-markdown-container a:hover{color:var(--md-link-hover)}.markdown-table{border:1px solid var(--table-border);text-align:left}.markdown-table th{background-color:var(--table-th-bg);font-weight:600;color:var(--table-text)}.markdown-table td{font-weight:400}.markdown-table td>strong{font-weight:500}.markdown-table tr:nth-child(2n){background-color:var(--table-tr-alt-bg)}.markdown-table tr:hover{background-color:var(--table-row-hover-bg)}.help-panel{top:50px;width:300px}.donate-panel,.help-panel{position:fixed;right:50px;z-index:500;word-wrap:break-word;overflow-wrap:break-word;overflow-x:hidden}.donate-panel{top:250px;width:200px}.main-panel{flex:1 1;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;margin-left:280px}.messages{flex:1 1;padding:20px;width:100%;overflow-y:auto;scrollbar-width:auto}.message{min-width:300px;max-width:800px;margin:10px auto;padding:15px 0;border-radius:10px}.main-panel .input-area{max-width:800px;margin:0 auto}.input-area{width:100%;padding:20px;display:flex;gap:10px;border:none}.input-area textarea{flex:1 1;min-width:300px;max-width:1000px;padding:12px;margin-left:0;border:1px solid var(--border);border-radius:8px;font-size:16px;background-color:var(--surface-1);color:var(--foreground)}.input-area button{padding:6px 24px;background:var(--primary);color:var(--on-primary);border:none;border-radius:8px;cursor:pointer}.input-area button:disabled{background:var(--secondary);color:var(--on-secondary);cursor:not-allowed}.loading{padding:10px;color:var(--muted);text-align:center;font-style:italic}.floating-newchat-btn{position:fixed;left:20px;top:90px;width:50px;height:50px;border:none;border-radius:50%;background:var(--primary);color:var(--on-primary);cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.2);z-index:300;display:flex;align-items:center;justify-content:center}.plus-icon{width:24px;height:24px;fill:currentColor}@media (max-width:768px){.floating-newchat-btn{left:10px;top:70px;width:40px;height:40px}.plus-icon{width:20px;height:20px}}.history-item{position:relative}.item-content{flex:1 1}.sidebar.closed:not(.mobile)~.main-panel{margin-left:0}@media (max-width:768px){.main-panel{margin-left:0}}.react-markdown-container>:first-child{margin-top:0}.react-markdown-container>:last-child{margin-bottom:0}.react-markdown-container li{line-height:1.7}.react-markdown-container li>p{margin:.25em 0}.react-markdown-container li>ol,.react-markdown-container li>ul{margin:.3em 0 .3em 1.25em}.react-markdown-container li.task-list-item{list-style:none}.react-markdown-container li.task-list-item input[type=checkbox]{margin-right:.5em;transform:translateY(1px)}.react-markdown-container input[type=checkbox]{margin-right:.5em}.react-markdown-container strong{font-weight:600}.react-markdown-container em{font-style:italic}.table-container{width:100%;overflow-x:auto;margin:.8em 0}.markdown-table{border-collapse:collapse;width:100%}.markdown-table td,.markdown-table th{border:1px solid var(--table-border)}.react-markdown-container code,.react-markdown-container pre{font-family:SFMono-Regular,Menlo,Monaco,Consolas,monospace}.history-group{margin:8px 0}.history-group-header{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--surface-2);border:1px solid var(--border);color:var(--sidebar-fg);padding:8px 10px;cursor:pointer;border-radius:8px;transition:background .2s ease,border-color .2s ease,box-shadow .2s ease}.history-group-header:hover{background:var(--sidebar-item-hover-bg);border-color:var(--secondary-hover)}.history-group-header:active{transform:translateY(.5px)}.history-group-header:focus-visible{outline:none;box-shadow:0 0 0 2px var(--primary)}.group-toggle{width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;padding:2px;border:1px solid var(--border);border-radius:4px;background:var(--secondary);color:currentColor;transition:transform .2s ease,background .2s ease,border-color .2s ease;transform-origin:50% 50%;fill:currentColor}.history-group-header:hover .group-toggle{background:var(--secondary-hover);border-color:var(--primary)}.history-group-header .group-toggle{color:var(--sidebar-fg)}.history-group-header .group-toggle path{fill:currentColor!important}html:not([data-theme=dark]) .history-group-header .group-toggle{color:#0f172a}html[data-theme=dark] .history-group-header .group-toggle{color:#e6edf3}.group-toggle.open{transform:rotate(90deg)}.group-title{font-weight:600;font-size:13px}.group-count{margin-left:auto;font-size:12px;opacity:.9;background:var(--secondary);color:var(--on-secondary);padding:2px 6px;border-radius:10px}.history-group-list{padding-left:4px}.history-group .history-item{margin:6px 0}.history-list>.history-group{padding:0;margin:8px 0;background:transparent;color:inherit;border-radius:0;cursor:default;transition:none}.history-item{padding:10px;margin:8px 0;background:var(--surface-1);color:var(--foreground);border-radius:6px;cursor:pointer;transition:background .2s ease;display:flex;justify-content:space-between;align-items:center}.history-item:hover{background:var(--sidebar-item-hover-bg)}.history-item.active{background:var(--sidebar-item-active-bg)}.item-content{gap:8px}.item-actions,.item-content{display:flex;align-items:center}.menu-trigger{height:auto}html:not([data-theme=dark]) .history-group-header .group-title{color:#0f172a;font-size:14px}.item-actions{position:relative;margin-left:10px;line-height:0}.menu-trigger{padding:2px 8px;border:none;background:var(--secondary);color:var(--on-secondary);cursor:pointer;border-radius:4px}.action-menu{position:absolute;right:0;top:100%;min-width:60px;height:32px;background:var(--surface-1);border:1px solid var(--border);border-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.1);z-index:100;overflow:hidden}.action-menu,.delete-btn{display:flex;justify-content:center;align-items:center}.delete-btn{width:100%;height:100%;border:0;background:transparent;cursor:pointer;color:#ff4d4f;font-weight:700;font-size:16px}.delete-btn:hover{background:var(--secondary-hover)}.history-item .item-content{font-size:14px;line-height:1.3}.menu-trigger{display:inline-flex;align-items:center;justify-content:center;gap:4px}.menu-trigger .dots-icon{width:16px;height:16px;display:block}.menu-trigger:focus-visible{outline:none;box-shadow:0 0 0 2px var(--primary)}html:not([data-theme=dark]) .action-menu{background:#ffffff;border-color:#cbd5e1;box-shadow:0 6px 18px rgba(0,0,0,.15)}html:not([data-theme=dark]) .delete-btn{color:#b91c1c}html:not([data-theme=dark]) .delete-btn:hover{background:#fee2e2;color:#991b1b}.code-block-wrapper{position:relative;margin:1.5em 0 0}.language-label{width:100%;position:absolute;top:-.5rem;left:0;transform:translateY(-50%);background:var(--secondary);color:var(--on-secondary);padding:.25rem;border-radius:8px 8px 0 0;font-size:.9em;font-weight:500;font-style:italic}html:not([data-theme=dark]) .code-block-wrapper .language-label{background:#e9eef3;color:#0f172a}.react-markdown-container li>code,.react-markdown-container p>code{background:var(--inline-code-bg);color:var(--inline-code-fg);padding:.2em .4em;border-radius:4px}.settings-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--overlay)}.modal-content{background-color:var(--surface-1)!important;color:var(--foreground)!important}.mermaid-block svg{display:block;max-width:100%;height:auto}html[data-theme=dark] .mermaid-block{filter:none}.input-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--overlay);display:flex;align-items:center;justify-content:center;z-index:1200}.input-modal-content{background:var(--surface-1);color:var(--foreground);padding:16px 20px;border-radius:10px;width:auto;max-width:min(90vw,480px);border:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,.18);position:relative;cursor:auto}.input-modal-content form{display:flex;flex-direction:column;gap:8px;margin-top:6px}.input-modal-content input{width:100%;height:36px;padding:0 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface-1);color:var(--foreground);outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}.input-modal-content input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary)}.input-modal-content input::placeholder{opacity:.75}.input-modal-btn-group{display:flex;flex-direction:row;justify-content:flex-end;align-items:center;gap:12px;margin-top:14px;flex-wrap:wrap}.input-modal-btn-group button{height:36px;padding:0 14px;background:var(--primary);color:var(--on-primary);border:none;border-radius:8px;cursor:pointer;transition:background .2s ease,filter .2s ease}.input-modal-btn-group button:first-child{background:var(--secondary);color:var(--on-secondary)}.input-modal-btn-group button:hover{background:var(--primary-hover)}.input-modal-btn-group button:first-child:hover{filter:brightness(.95)}@media (max-width:520px){.input-modal-content{max-width:92vw}.input-modal-btn-group{justify-content:center}}.button-group{display:flex;gap:10px;justify-content:flex-end;font-size:16px}.button-group button{padding:4px 8px}.refresh-btn,.save-btn{background:var(--primary);color:var(--on-primary);border:none;border-radius:4px;cursor:pointer}.save-btn:disabled{background:var(--secondary);color:var(--on-secondary);cursor:not-allowed}.setting-delete-btn{background:#ff4d4f;color:var(--on-primary);border:none;border-radius:4px;cursor:pointer}.add-source-btn{background-color:var(--primary);color:var(--on-primary);border:none;border-radius:5px}.settings-modal{z-index:1000;display:flex;align-items:center;justify-content:center}.modal-content{background:var(--surface-1);color:var(--foreground);width:auto;max-width:min(90vw,800px);max-height:80vh;padding:16px 20px;border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.18)}.settings-modal form{display:flex;align-items:center;margin:8px 0}.settings-modal form>div{min-width:80px;color:var(--foreground)}.settings-modal form input[type=password],.settings-modal form input[type=text],.settings-modal form select{flex:1 1 auto}.settings-modal form{gap:12px;margin:10px 0}.settings-modal form>div{min-width:100px;text-align:right}.settings-modal input[type=password],.settings-modal input[type=text],.settings-modal select{height:36px;padding:0 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface-1);color:var(--foreground);outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}.settings-modal input[type=password]:focus,.settings-modal input[type=text]:focus,.settings-modal select:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary)}.settings-modal input::placeholder{opacity:.75}.settings-modal .button-group{gap:12px;margin-top:16px;flex-wrap:wrap}.settings-modal .button-group button{height:36px;padding:0 14px;border-radius:8px}.settings-modal .add-source-btn:hover,.settings-modal .refresh-btn:hover,.settings-modal .save-btn:hover{background:var(--primary-hover)}.settings-modal .setting-delete-btn:hover{filter:brightness(.95)}@media (max-width:520px){.settings-modal form{flex-direction:column;align-items:stretch;gap:6px}.settings-modal form>div{text-align:left;min-width:auto}.settings-modal .button-group{justify-content:center}}