:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f3f5f9;--panel:#fff;--text:#172033;--muted:#697386;--border:#dfe4ec;--primary:#4f46e5;--primary-dark:#4038c7;--danger:#c33243}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--text);font:14px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button,.button{border:1px solid var(--border);color:var(--text);cursor:pointer;background:#fff;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:8px 13px;text-decoration:none;transition:background .15s,border-color .15s;display:inline-flex}button:hover,.button:hover{background:#f6f7fb;border-color:#c6cdd9}button:disabled{opacity:.55;cursor:wait}.primary{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}.primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}.subtle{background:0 0}.danger-ghost{color:var(--danger)}.wide{width:100%}.icon-button{color:var(--muted);background:0 0;border:0;padding:5px 9px;font-size:22px}h1,h2,p{margin-top:0}h1{font-size:25px}h2{margin-bottom:0;font-size:16px}input,textarea{color:var(--text)}label{gap:7px;font-weight:600;display:grid}label input{border:1px solid var(--border);background:#fff;border-radius:8px;outline:none;width:100%;padding:11px 12px}label input:focus,.title-input:focus,.text-editor:focus{border-color:#8b85ef;box-shadow:0 0 0 3px #4f46e512}small,.muted{color:var(--muted)}.empty-state{text-align:center;padding:28px 10px}.brand{color:var(--text);align-items:center;gap:10px;font-size:18px;text-decoration:none;display:inline-flex}.brand-mark{background:var(--primary);color:#fff;border-radius:9px;justify-content:center;align-items:center;width:34px;height:34px;font-size:21px;font-weight:750;display:inline-flex}.app-header{border-bottom:1px solid var(--border);z-index:20;background:#fff;justify-content:space-between;align-items:center;height:62px;padding:0 24px;display:flex;position:sticky;top:0}.header-actions{align-items:center;gap:8px;display:flex}.retention-badge{color:var(--muted);background:#f4f5f8;border-radius:20px;margin-right:8px;padding:6px 10px;font-size:12px}.global-alert{color:#9c2636;cursor:pointer;background:#fff1f3;border:1px solid #f2b8c0;border-radius:8px;justify-content:space-between;margin:12px 24px 0;padding:11px 15px;display:flex}.error-banner{color:#a12839;background:#fff0f2;border:1px solid #f4c2c9;border-radius:7px;padding:9px 11px;font-weight:400}.success-message{color:#238254;margin-right:10px}.workspace{border:1px solid var(--border);background:var(--panel);border-radius:12px;grid-template-rows:minmax(0,1fr);grid-template-columns:280px minmax(0,1fr);height:calc(100vh - 410px);min-height:460px;margin:18px 24px 0;display:grid;overflow:hidden;box-shadow:0 3px 12px #1f293708}.history-panel{border-right:1px solid var(--border);background:#fafbfc;flex-direction:column;min-width:0;min-height:0;display:flex;overflow:hidden}.panel-heading{flex-shrink:0;justify-content:space-between;align-items:center;padding:17px 17px 10px;display:flex}.panel-heading span{color:var(--muted);background:#edf0f4;border-radius:12px;padding:2px 8px;font-size:12px}.new-item-buttons{border-bottom:1px solid var(--border);flex-shrink:0;grid-template-columns:1fr 1fr 1fr;gap:6px;padding:0 12px 12px;display:grid}.new-item-buttons button{padding:7px 4px;font-size:12px}.history-list{overscroll-behavior:contain;scrollbar-gutter:stable;flex:1;min-height:0;padding:7px;overflow-y:auto}.history-item{text-align:left;background:0 0;border:0;border-radius:7px;flex-shrink:0;justify-content:flex-start;align-items:flex-start;gap:9px;width:100%;padding:11px 9px;display:flex}.history-item:hover{background:#f0f1f7}.history-item.selected{background:#ebe9ff}.history-item>span:last-child{flex:1;gap:4px;min-width:0;display:grid}.history-item strong{white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:13px;font-weight:550;display:block;overflow:hidden}.history-item small{font-size:11px}.kind-dot{background:#64748b;border-radius:50%;flex:0 0 7px;width:7px;height:7px;margin-top:6px}.kind-dot.rich{background:#8b5cf6}.kind-dot.markdown{background:#0ea5e9}.editor-panel{flex-direction:column;min-width:0;min-height:0;display:flex;overflow:hidden}.editor-heading{border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:12px;padding:10px 16px;display:flex}.title-input{background:0 0;border:1px solid #0000;border-radius:7px;outline:none;flex:1;min-width:0;padding:6px 8px;font-size:16px;font-weight:600}.kind-label{color:#526074;background:#f1f5f9;border-radius:5px;padding:4px 8px;font-size:11px}.kind-label.rich{color:#7550ba;background:#f0eaff}.kind-label.markdown{color:#187ca8;background:#e7f6fd}.editor-body{flex:1;min-height:0;display:flex;overflow:hidden}.text-editor{resize:none;border:0;outline:none;flex:1;width:100%;min-width:0;height:100%;padding:20px;font:14px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace}.editor-footer{border-top:1px solid var(--border);min-height:57px;color:var(--muted);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:9px 16px;font-size:12px;display:flex}.editor-footer>div{align-items:center;gap:8px;display:flex}.editor-loading{color:var(--muted);padding:20px}.rich-editor,.markdown-editor{flex-direction:column;flex:1;width:100%;min-height:0;display:flex;overflow:hidden}.editor-toolbar{border-bottom:1px solid var(--border);background:#fafbfc;flex-wrap:wrap;flex-shrink:0;align-items:center;gap:4px;padding:7px 12px;display:flex}.editor-toolbar button{background:0 0;border-color:#0000;min-width:30px;padding:5px 8px;font-size:12px}.editor-toolbar button.active{color:var(--primary);background:#e7e5fb}.editor-content{flex:1;min-height:0;overflow-y:auto}.editor-content .ProseMirror{outline:none;min-height:100%;padding:20px;font-size:15px;line-height:1.65}.ProseMirror p{margin:0 0 10px}.ProseMirror h1,.ProseMirror h2{margin:18px 0 10px}.ProseMirror pre{color:#e5e7eb;white-space:pre-wrap;background:#172033;border-radius:7px;padding:14px}.ProseMirror blockquote{color:#5d6677;border-left:3px solid #b9b3ee;padding-left:14px}.ProseMirror img{max-width:100%;height:auto}.ProseMirror a{color:var(--primary)}.markdown-source{border:0}.markdown-preview{background:#fff;border:0;flex:1;width:100%;min-height:0}.files-panel{border:1px solid var(--border);background:#fff;border-radius:12px;min-height:180px;margin:14px 24px 24px;padding:16px 18px}.files-heading{justify-content:space-between;align-items:center;gap:15px;display:flex}.files-heading h2{margin-bottom:3px}.files-heading p{color:var(--muted);margin:0;font-size:12px}.quota-row{color:var(--muted);justify-content:space-between;margin-top:14px;font-size:11px;display:flex}.quota-track{background:#e9ecf2;border-radius:3px;height:4px;margin:5px 0 12px;overflow:hidden}.quota-track div{background:var(--primary);height:100%}.file-list{display:grid}.file-row{border-top:1px solid #edf0f4;align-items:center;gap:11px;padding:8px 0;display:flex}.file-row img,.file-icon{object-fit:cover;border-radius:6px;flex:0 0 38px;width:38px;height:38px}.file-icon{color:#7a8496;background:#eef0f6;justify-content:center;align-items:center;font-size:9px;font-weight:700;display:flex}.file-info{flex:1;min-width:0;display:grid}.file-info strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-info small{font-size:11px}.upload-progress{grid-template-columns:minmax(100px,240px) 1fr 40px;align-items:center;gap:10px;padding:5px 0;font-size:12px;display:grid}.upload-progress>span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.upload-progress>div{background:#e9ecf2;border-radius:4px;height:5px;overflow:hidden}.upload-progress i{background:var(--primary);height:100%;display:block}.login-page{background:radial-gradient(circle at 50% 10%, #e5e3ff, var(--bg) 45%);place-items:center;min-height:100vh;padding:20px;display:grid}.login-card{border:1px solid var(--border);text-align:center;background:#fff;border-radius:16px;gap:17px;width:100%;max-width:390px;padding:34px;display:grid;box-shadow:0 16px 50px #27334d12}.login-card .brand-mark{width:48px;height:48px;margin:auto}.login-card h1,.login-card p{margin:0}.login-card p,.login-card small{color:var(--muted)}.login-card label{text-align:left}.modal-backdrop{z-index:100;background:#0f172a66;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{background:#fff;border-radius:13px;gap:16px;width:100%;max-width:420px;padding:26px;display:grid;position:relative;box-shadow:0 20px 70px #0003}.modal h2,.modal p{margin:0}.modal-close{background:0 0;border:0;font-size:22px;position:absolute;top:10px;right:10px}.admin-page{min-height:100vh}.admin-content{grid-template-columns:1.5fr 1fr;align-items:start;gap:20px;max-width:1100px;margin:30px auto;padding:0 20px;display:grid}.admin-card{border:1px solid var(--border);background:#fff;border-radius:12px;padding:24px}.user-table{margin-top:20px}.user-row{border-top:1px solid var(--border);justify-content:space-between;align-items:center;padding:13px 0;display:flex}.user-row>div{display:grid}.create-user{gap:17px;display:grid}.checkbox-label{grid-template-columns:auto 1fr;font-weight:400;display:flex}.checkbox-label input{width:auto}.theme-toggle{white-space:nowrap}.theme-icon{background:linear-gradient(90deg,currentColor 50%,#0000 50%);border:1px solid;border-radius:50%;width:14px;height:14px}.theme-icon.dark{background:0 0;box-shadow:inset -4px -2px}html[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0f1420;--panel:#181f2e;--text:#e6eaf2;--muted:#96a1b5;--border:#303a4d;--primary:#8178f5;--primary-dark:#6c61e8;--danger:#f18391}html[data-theme=dark] button,html[data-theme=dark] .button{color:var(--text);border-color:var(--border);background:#181f2e}html[data-theme=dark] button:hover,html[data-theme=dark] .button:hover{background:#232c3d;border-color:#465169}html[data-theme=dark] button.primary,html[data-theme=dark] .primary{background:var(--primary);border-color:var(--primary);color:#fff}html[data-theme=dark] button.primary:hover,html[data-theme=dark] .primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}html[data-theme=dark] .subtle,html[data-theme=dark] .history-item,html[data-theme=dark] .editor-toolbar button,html[data-theme=dark] .icon-button,html[data-theme=dark] .modal-close{background:0 0}html[data-theme=dark] .app-header,html[data-theme=dark] .workspace,html[data-theme=dark] .files-panel,html[data-theme=dark] .login-card,html[data-theme=dark] .modal,html[data-theme=dark] .admin-card{background:var(--panel)}html[data-theme=dark] .history-panel,html[data-theme=dark] .editor-toolbar{background:#131a28}html[data-theme=dark] label input,html[data-theme=dark] .text-editor{background:var(--panel);color:var(--text)}html[data-theme=dark] .title-input{color:var(--text)}html[data-theme=dark] ::placeholder{color:var(--muted)}html[data-theme=dark] .history-item:hover{background:#232c3c}html[data-theme=dark] .history-item.selected{background:#322e58}html[data-theme=dark] .panel-heading span,html[data-theme=dark] .retention-badge,html[data-theme=dark] .file-icon{background:#252e3f}html[data-theme=dark] .kind-label{color:#b2bdd0;background:#252e3f}html[data-theme=dark] .kind-label.rich{color:#c3b2f2;background:#352d50}html[data-theme=dark] .kind-label.markdown{color:#8bd8fa;background:#173448}html[data-theme=dark] .editor-toolbar button.active{color:#c8c1ff;background:#353059}html[data-theme=dark] .ProseMirror blockquote{color:var(--muted)}html[data-theme=dark] .quota-track,html[data-theme=dark] .upload-progress>div{background:#303a4d}html[data-theme=dark] .file-row{border-color:#283246}html[data-theme=dark] .login-page{background:radial-gradient(circle at 50% 10%, #262444, var(--bg) 45%)}html[data-theme=dark] .global-alert,html[data-theme=dark] .error-banner{color:#ffadb8;background:#3a2029;border-color:#6c3542}html[data-theme=dark] .success-message{color:#72d9a2}html[data-theme=dark] .markdown-preview{background:var(--panel)}@media (max-width:800px){.app-header{padding:0 12px}.retention-badge{display:none}.header-actions{gap:3px}.header-actions .button{padding:7px 8px;font-size:12px}.workspace{grid-template-columns:1fr;height:auto;min-height:700px;margin:10px 10px 0}.history-panel{border-right:0;border-bottom:1px solid var(--border);max-height:210px}.editor-panel{min-height:480px}.editor-footer{flex-direction:column;align-items:flex-start}.editor-footer>div{justify-content:flex-end;width:100%}.files-panel{margin:10px}.admin-content{grid-template-columns:1fr}.file-info small{white-space:normal}}