.course-leo-chat-page,.course-leo-tutorial-backdrop{--font-manrope:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;--font-lato:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif}.course-leo-chat-page{height:100%;min-height:0;font-family:var(--font-manrope), var(--font-lato), sans-serif;background:#fff;display:block;position:relative;overflow:hidden}.course-leo-chat-drop-overlay{z-index:60;pointer-events:none;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0f172a47;place-items:center;display:grid;position:absolute;inset:0}.course-leo-chat-drop-card{color:#f8fafc;letter-spacing:-.01em;text-shadow:0 1px 16px #0f172a73;flex-direction:column;align-items:center;gap:12px;font-size:1.05rem;font-weight:650;display:inline-flex}.course-leo-chat-drop-icon{filter:drop-shadow(0 8px 20px #0f172a47);width:58px;height:58px}.workspace-chat-card .course-leo-chat-page{background:0 0;border-radius:0}.workspace-chat-card .course-leo-chat-stream{background:0 0;padding-left:0;padding-right:0}.workspace-chat-card .course-leo-chat-page.is-history-card-layout .course-leo-chat-main{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;border-radius:0}.workspace-chat-card .course-leo-message-list,.workspace-chat-card .course-leo-compose-shell,.workspace-chat-card .course-leo-suggested-actions{width:100%;max-width:100%;margin-left:0;margin-right:0}.workspace-chat-card .course-leo-input-dock{padding-left:0;padding-right:0}.workspace-chat-card .course-leo-input-dock:before{background:0 0}.course-leo-chat-page.is-history-card-layout .course-leo-chat-layout{grid-template-columns:auto minmax(0,1fr);gap:12px;height:100%;min-height:0;padding:12px;display:grid}.course-leo-chat-page.is-history-card-layout .course-leo-thread-sidebar{-webkit-backdrop-filter:blur(16px)saturate(1.2);backdrop-filter:blur(16px)saturate(1.2);background:#ffffffe6;border:1px solid #e2e8f0e6;border-radius:18px;width:50px;min-width:50px;height:100%;position:relative;top:auto;left:auto;box-shadow:0 10px 24px #0f172a14}.course-leo-chat-page.is-history-card-layout .course-leo-thread-sidebar.is-open{-webkit-backdrop-filter:blur(24px)saturate(1.25);backdrop-filter:blur(24px)saturate(1.25);background:#fffffff0;border-radius:22px;width:290px;min-width:290px;height:100%}.course-leo-chat-page.is-history-card-layout .course-leo-thread-toggle{position:static}.course-leo-chat-page.is-history-card-layout .course-leo-thread-sidebar-head{min-height:56px;padding:10px 14px 8px}.course-leo-chat-page.is-history-card-layout .course-leo-thread-list{padding:2px 12px 12px}.course-leo-chat-page.is-history-card-layout .course-leo-chat-main{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffd1;border:1px solid #e2e8f0e6;border-radius:22px;overflow:hidden;box-shadow:0 10px 24px #0f172a12}.course-leo-chat-layout{height:100%;min-height:0;position:relative}.course-leo-thread-sidebar{width:40px;height:40px;box-shadow:none;z-index:8;background:0 0;border:1px solid #d5d6d8;border-radius:999px;transition:width .22s,height .22s,background-color .2s,border-color .2s,box-shadow .22s;position:absolute;top:10px;left:16px;overflow:hidden}.course-leo-thread-sidebar.is-open{-webkit-backdrop-filter:blur(22px)saturate(1.2);backdrop-filter:blur(22px)saturate(1.2);z-index:25;background:#f8f8f8f0;border-radius:24px;width:336px;height:calc(100% - 24px);box-shadow:0 18px 38px #0c223a2e}.course-leo-thread-sidebar.is-disabled{display:none}.course-leo-thread-sidebar.is-collapsing{border-radius:24px}.course-leo-thread-toggle{z-index:2;position:absolute;top:-1px;left:-1px}.course-leo-thread-sidebar-panel{opacity:0;pointer-events:none;grid-template-rows:auto minmax(0,1fr);height:100%;min-height:0;transition:opacity .14s;display:grid}.course-leo-thread-sidebar.is-open .course-leo-thread-sidebar-panel{opacity:1;pointer-events:auto}.course-leo-thread-sidebar.is-collapsing .course-leo-thread-sidebar-panel{opacity:0;pointer-events:none}.course-leo-thread-sidebar-head{justify-content:flex-start;align-items:center;gap:10px;min-height:70px;padding:0 24px 0 68px;display:flex}.course-leo-thread-sidebar-head h3{color:#111418;text-align:left;white-space:nowrap;text-overflow:ellipsis;min-width:0;margin:0;font-size:1.12rem;font-weight:600;overflow:hidden}.course-leo-thread-new-icon{width:34px;height:34px;margin-left:auto}.course-leo-thread-new-icon:disabled{opacity:.5;cursor:not-allowed}.course-leo-thread-feedback{color:#677585;margin:4px 20px;font-size:.8rem;line-height:1.35}.course-leo-thread-feedback.is-error{color:#9b2d34}.course-leo-thread-list{align-content:start;gap:10px;min-height:0;margin:0;padding:2px 16px 16px;list-style:none;display:grid;overflow-y:auto}.course-leo-thread-list,.course-leo-chat-stream,.course-leo-compose-input,.course-leo-markdown pre,.course-leo-markdown .katex-display{-ms-overflow-style:none;overscroll-behavior:contain;scrollbar-width:none}.course-leo-thread-list::-webkit-scrollbar{display:none}.course-leo-chat-stream::-webkit-scrollbar{display:none}.course-leo-compose-input::-webkit-scrollbar{display:none}.course-leo-markdown pre::-webkit-scrollbar{display:none}.course-leo-markdown .katex-display::-webkit-scrollbar{display:none}.course-leo-thread-item{position:relative}.course-leo-thread-select{color:#171d23;text-align:left;cursor:pointer;background:#fff;border:1px solid #c3c7cc;border-radius:12px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;width:100%;min-height:54px;padding:10px 18px;display:grid}.course-leo-thread-select.is-active{background:#f8fbff;border-color:#8ca2ba}.course-leo-thread-select:disabled{opacity:.6;cursor:default}.course-leo-thread-title{text-overflow:ellipsis;white-space:nowrap;font-size:.92rem;font-weight:500;line-height:1.3;overflow:hidden}.course-leo-thread-document-badge{color:#24527a;letter-spacing:.02em;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;background:#eef6ff;border:1px solid #b9ccdd;border-radius:8px;align-items:center;width:fit-content;max-width:min(100%,180px);margin-top:4px;padding:3px 7px;font-size:.64rem;font-weight:700;line-height:1;display:inline-flex;overflow:hidden}.course-leo-thread-age{color:#70757a;text-align:right;justify-self:stretch;min-width:40px;font-size:.75rem;font-weight:600;transition:opacity .14s}.course-leo-thread-delete{color:#9b3b42;cursor:pointer;opacity:0;pointer-events:none;background:#fff8f8;border:1px solid #f0c8cc;border-radius:999px;place-items:center;width:32px;height:32px;min-height:32px;padding:0;transition:opacity .15s,background-color .16s,border-color .16s;display:grid;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.course-leo-thread-delete-icon{flex-shrink:0;width:16px;height:16px}.course-leo-thread-delete:hover:not(:disabled){background:#ffecec;border-color:#e8a8b0}.course-leo-thread-delete.is-busy .course-leo-thread-delete-icon{opacity:.45;animation:.85s ease-in-out infinite course-leo-thread-delete-pulse}@keyframes course-leo-thread-delete-pulse{0%,to{opacity:.35}50%{opacity:.92}}.course-leo-thread-item:hover .course-leo-thread-delete,.course-leo-thread-item:focus-within .course-leo-thread-delete{opacity:1;pointer-events:auto}.course-leo-thread-item:hover .course-leo-thread-age,.course-leo-thread-item:focus-within .course-leo-thread-age{opacity:0}.course-leo-thread-delete:disabled{opacity:1;pointer-events:none;cursor:default}.course-leo-thread-delete:disabled .course-leo-thread-delete-icon{animation:none}.course-leo-thread-toggle.course-leo-icon-button{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;transition:transform .2s,opacity .14s}.course-leo-thread-toggle.course-leo-icon-button:hover{background:#94a3b829;transform:none}.course-leo-thread-toggle.course-leo-icon-button:active{background:#94a3b842;transform:none}.course-leo-thread-toggle.course-leo-icon-button:focus-visible{outline-offset:2px;outline:2px solid #4c76a2}.course-leo-thread-sidebar.is-open .course-leo-thread-toggle.course-leo-icon-button{opacity:1}.course-leo-chat-main{min-width:0;height:100%;min-height:0;position:relative}.course-leo-chat-floating-actions{z-index:14;align-items:center;gap:8px;display:flex;position:absolute;top:10px;right:16px}.course-leo-sign-out-button{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);height:40px;font:inherit;color:#192a3a;cursor:pointer;background:#ffffffd1;border:1px solid #8fa0b280;border-radius:999px;padding:0 14px;font-size:.82rem;font-weight:500;transition:transform .2s,background-color .2s,box-shadow .22s;box-shadow:inset 0 1px #ffffffeb,0 6px 18px #122a4414}.course-leo-sign-out-button:hover{background:#fffffff0;box-shadow:inset 0 1px #ffffffeb,0 8px 20px #122a441f}.course-leo-sign-out-button:focus-visible{outline-offset:2px;outline:2px solid #71717a}.course-leo-assignment-banner{z-index:13;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#23374a;white-space:nowrap;text-overflow:ellipsis;cursor:pointer;background:#ffffffd6;border:1px solid #8fa0b273;border-radius:999px;align-items:center;gap:6px;width:fit-content;max-width:min(760px,100% - 240px);padding:8px 12px;text-decoration:none;transition:transform .18s,box-shadow .22s;display:inline-flex;position:absolute;top:10px;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:inset 0 1px #ffffffeb,0 6px 18px #122a4414}.course-leo-assignment-banner:hover{transform:translate(-50%)translateY(-1px);box-shadow:inset 0 1px #ffffffeb,0 8px 20px #122a441f}.course-leo-assignment-banner-label{color:#6f8092;flex-shrink:0;font-size:.78rem;font-weight:500}.course-leo-assignment-banner-title{color:#1f3246;text-overflow:ellipsis;font-size:.82rem;font-weight:600;overflow:hidden}.course-leo-mode-selector{position:relative}.course-leo-model-select-wrap{display:inline-flex}.course-leo-model-select{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#192a3a;max-width:220px;height:40px;font:inherit;background:#ffffffd1;border:1px solid #8fa0b280;border-radius:999px;padding:0 12px;font-size:.82rem;box-shadow:inset 0 1px #ffffffeb,0 6px 18px #122a4414}.course-leo-mode-trigger,.course-leo-icon-button{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#192a3a;background:#ffffffd1;border:1px solid #8fa0b280;transition:transform .2s,background-color .2s,box-shadow .22s;box-shadow:inset 0 1px #ffffffeb,0 6px 18px #122a4414}.course-leo-mode-trigger{height:40px;font:inherit;letter-spacing:0;cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:0 14px;font-size:.95rem;font-weight:500;display:inline-flex}.course-leo-mode-trigger-text{align-items:center;gap:4px;display:inline-flex}.course-leo-mode-trigger-brand{color:#0000;background-image:linear-gradient(90deg,#1d4ed8 0%,#4338ca 45%,#2563eb 100%);-webkit-background-clip:text;background-clip:text}.course-leo-mode-trigger-mode{color:#22364a}.course-leo-mode-caret{opacity:.84;width:16px;height:16px;transition:transform .18s}.course-leo-mode-caret.is-open{transform:rotate(180deg)}.course-leo-mode-menu{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:22;background:#ffffffdb;border:1px solid #c8d4e0e6;border-radius:24px;gap:4px;width:300px;padding:8px;display:grid;position:absolute;top:calc(100% + 8px);right:0;overflow:visible;box-shadow:0 18px 36px #0d213633}.course-leo-mode-option{font:inherit;text-align:left;color:#152b42;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:10px;gap:2px;padding:8px 11px;display:grid}.course-leo-mode-option span{font-size:.86rem;font-weight:500}.course-leo-mode-option small{color:#607488;font-size:.76rem}.course-leo-mode-option.is-active{background:#dfeaf58f;border-color:#a9bbcfd1}.course-leo-mode-menu-footer{border-top:1px solid color-mix(in srgb, var(--leo-accent,#94a3b8) 16%, transparent);margin-top:4px;padding-top:6px}.course-leo-mode-menu-scope{text-align:left;gap:2px;padding:4px 11px 6px;display:grid}.course-leo-mode-menu-scope .course-leo-welcome-scope-work{font-size:.78rem;line-height:1.4}.course-leo-mode-menu-scope .course-leo-welcome-scope-note,.course-leo-mode-menu-scope .course-leo-welcome-visibility-line{font-size:.74rem;line-height:1.35}.course-leo-mode-menu-scope .course-leo-welcome-visibility{justify-items:start}.course-leo-mode-menu-scope .course-leo-welcome-visibility-menu{width:max-content;min-width:0;max-width:min(280px,100dvw - 2rem);top:auto;bottom:calc(100% + 6px);left:0;transform:none}.course-leo-icon-button{cursor:pointer;border-radius:999px;place-items:center;width:40px;height:40px;padding:0;display:grid}.course-leo-icon-button-icon{stroke-width:2.1px;width:20px;height:20px}.course-leo-menu-icon{stroke-width:1.8px}.course-leo-icon-button-help{font-size:1.24rem;font-weight:500;line-height:1;font-family:var(--font-manrope), var(--font-lato), sans-serif;-webkit-font-smoothing:antialiased;margin-top:-1px}.course-leo-chat-stream{background:#fff;height:100%;min-height:0;padding:82px 24px 138px;overflow-y:auto}.course-leo-chat-stream.has-assignment-banner{padding-top:126px}.course-leo-chat-stream.is-streaming{padding-bottom:196px}.course-leo-chat-page.is-empty-chat .course-leo-chat-stream{padding-bottom:220px}.course-leo-chat-stream.is-empty{place-items:center;display:grid}.course-leo-welcome{text-align:center;justify-items:center;gap:8px;width:min(720px,100%);margin-top:-44px;display:grid}.course-leo-welcome-video{object-fit:contain;background:0 0;width:242px;height:242px}.course-leo-welcome-video::cue{display:none}.course-leo-welcome-eyebrow{color:#3a6ea1;letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:.74rem;font-weight:500}.course-leo-welcome h2{color:#1a3047;letter-spacing:-.01em;margin:8px 0 0;font-size:1.88rem;font-weight:500;line-height:1.15}.course-leo-welcome-copy{color:#5d7187;max-width:560px;margin:2px 0 0;font-size:.92rem;line-height:1.45}.course-leo-welcome-scope{gap:4px;max-width:520px;margin-top:4px;display:grid}.course-leo-welcome-scope-note{color:#94a3b8;margin:0;font-size:.84rem;font-weight:400;line-height:1.45}.course-leo-welcome-scope-work{margin:0;font-size:.92rem;font-weight:400;line-height:1.45}.course-leo-welcome-scope-work-prefix{color:#94a3b8}.course-leo-welcome-scope-work-name{color:#64748b;font-weight:500}.course-leo-welcome-visibility{justify-items:center;gap:4px;max-width:520px;display:grid;position:relative}.course-leo-welcome-visibility-line{color:#94a3b8;margin:0;font-size:.84rem;font-weight:400;line-height:1.45}.course-leo-welcome-visibility-trigger{color:#64748b;font:inherit;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;margin:0;padding:0;font-weight:500;text-decoration:underline}.course-leo-welcome-visibility-trigger:hover{color:#475569}.course-leo-welcome-visibility-menu{z-index:20;margin-top:6px;text-align:left;background:#fff;border:1px solid #cbd5e1;border-radius:12px;min-width:min(280px,92vw);margin-block:0;padding:6px;list-style:none;position:absolute;top:100%;left:50%;transform:translate(-50%);box-shadow:0 14px 36px #0f172a1f}.course-leo-welcome-visibility-option{color:#1e293b;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;width:100%;padding:10px;font-size:.84rem;line-height:1.35;display:block}.course-leo-welcome-visibility-option:hover{background:#f1f5f9}.course-leo-welcome-document-launcher{justify-items:center;gap:12px;width:min(620px,100%);margin-top:12px;display:grid}.course-leo-welcome-document-primary{color:#fff;cursor:pointer;background:#111827;border:1px solid #1e293b29;border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:42px;padding:0 18px;font-size:.92rem;font-weight:600;transition:box-shadow .15s,background-color .15s;display:inline-flex;box-shadow:0 14px 30px #0f172a29}.course-leo-welcome-document-primary:hover{background:#1f2937;box-shadow:0 18px 38px #0f172a33}.course-leo-welcome-document-primary:disabled{cursor:wait;opacity:.65;transform:none}.course-leo-welcome-document-primary-icon{background:#ffffff29;border-radius:999px;justify-content:center;align-items:center;width:20px;height:20px;font-size:1rem;line-height:1;display:inline-flex}.course-leo-welcome-document-previews{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:100%;display:grid}.course-leo-welcome-document-card{text-align:left;cursor:pointer;background:#ffffffdb;border:1px solid #cbd5e1d1;border-radius:14px;gap:4px;min-width:0;padding:10px 11px;transition:border-color .15s,background-color .15s;display:grid;box-shadow:0 10px 24px #0f172a12}.course-leo-welcome-document-card:hover{background:#fff;border-color:#94a3b8f2}.course-leo-welcome-document-kind{color:#64748b;text-transform:uppercase;font-size:.68rem;font-weight:700;line-height:1.2}.course-leo-welcome-document-title,.course-leo-welcome-document-subtitle,.course-leo-welcome-document-meta{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.course-leo-welcome-document-title{color:#1e293b;font-size:.84rem;font-weight:650;line-height:1.25}.course-leo-welcome-document-subtitle{color:#64748b;font-size:.76rem;line-height:1.25}.course-leo-welcome-document-meta{color:#94a3b8;font-size:.7rem;line-height:1.25}.course-leo-thread-select.has-notebook-visibility{grid-template-columns:auto minmax(0,1fr) auto;gap:6px;padding-left:12px}.course-leo-thread-vis{justify-self:start;align-items:center;display:flex;position:relative}.course-leo-thread-vis-trigger{color:#475569;cursor:pointer;background:#f8fafc;border:1px solid #c3c7cc;border-radius:999px;justify-content:center;align-items:center;width:32px;height:32px;padding:0;display:flex}.course-leo-thread-vis-trigger:hover:not(:disabled){color:#1e293b;border-color:#94a3b8}.course-leo-thread-vis-trigger:disabled{opacity:.55;cursor:default}.course-leo-thread-vis-menu{z-index:30;background:#fff;border:1px solid #cbd5e1;border-radius:12px;min-width:240px;margin:0;padding:6px;list-style:none;position:absolute;top:calc(100% + 4px);left:0;box-shadow:0 14px 36px #0f172a1f}.course-leo-thread-vis-option{color:#1e293b;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;align-items:flex-start;gap:8px;width:100%;padding:8px;font-size:.78rem;line-height:1.35;display:flex}.course-leo-thread-vis-option:hover{background:#f1f5f9}.course-leo-thread-vis-option-icon{flex-shrink:0;margin-top:1px}.course-leo-message-list{gap:22px;width:min(980px,100%);margin:0 auto;padding:0;list-style:none;display:grid}.course-leo-message-item{display:block;position:relative}.course-leo-message-item.is-assistant{width:100%}.course-leo-message-item.is-user{justify-content:flex-end;display:flex}.course-leo-user-turn{flex-direction:column;align-items:flex-end;gap:6px;max-width:min(78%,860px);display:flex}.course-leo-response{color:#15212d;gap:12px;width:100%;padding:8px 0;display:grid;position:relative}.course-leo-user-bubble{color:#161d24;background:#ececec;border-radius:22px;max-width:100%;padding:16px 20px 12px}.course-leo-user-bubble p{margin:0;font-size:.95rem;line-height:1.54}.course-leo-message-actions{opacity:0;pointer-events:none;align-items:center;gap:6px;margin:0;transition:opacity .15s;display:flex}.course-leo-message-item.is-assistant>.course-leo-message-actions{margin-top:6px}.course-leo-message-actions.is-always-visible,.course-leo-message-item:hover .course-leo-message-actions.is-hover-visible,.course-leo-message-item:focus-within .course-leo-message-actions.is-hover-visible{opacity:1;pointer-events:auto}.course-leo-message-item.is-user .course-leo-message-actions{justify-content:flex-end}.course-leo-message-action{width:30px;height:30px;color:var(--leo-ink-soft);cursor:pointer;background:0 0;border:none;border-radius:9px;justify-content:center;align-items:center;transition:background-color .14s,color .14s;display:inline-flex}.course-leo-message-action:hover:not(:disabled){background:color-mix(in srgb, var(--leo-ink) 8%, transparent);color:var(--leo-ink)}.course-leo-message-action:active:not(:disabled){background:color-mix(in srgb, var(--leo-ink) 14%, transparent)}.course-leo-message-action:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);outline-offset:2px}.course-leo-message-action:disabled{opacity:.4;cursor:not-allowed}.course-leo-message-action.is-muted{opacity:.35;cursor:default}.course-leo-message-action.is-muted:hover{color:var(--leo-ink-soft);background:0 0}.course-leo-message-action.is-copied{color:var(--leo-accent)}.course-leo-message-action-icon{stroke-width:1.85px;width:18px;height:18px}.course-leo-branch-nav{background:0 0;border-radius:9px;align-items:center;gap:2px;margin-right:4px;padding:0 2px;transition:background .12s;display:inline-flex}.course-leo-branch-nav:hover,.course-leo-branch-nav:focus-within{background:color-mix(in srgb, var(--leo-ink) 5%, transparent)}.course-leo-branch-nav-label{color:var(--leo-ink-soft);text-align:center;-webkit-user-select:none;user-select:none;opacity:.8;min-width:1.75rem;font-size:.7rem}.course-leo-user-turn.is-editing{align-items:stretch;width:100%}.course-leo-message-editor{background:color-mix(in srgb, var(--leo-ink) 6%, var(--leo-paper));border:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);width:100%;box-shadow:0 1px 2px color-mix(in srgb, var(--leo-ink) 8%, transparent);border-radius:22px;flex-direction:column;gap:10px;padding:14px 16px 12px;display:flex}.course-leo-message-editor-input{width:100%;font:inherit;color:var(--leo-ink-heading);resize:none;background:0 0;border:none;border-radius:0;outline:none;margin:0;padding:0;font-size:.95rem;line-height:1.54;overflow-y:auto}.course-leo-message-editor-input::placeholder{color:var(--leo-ink-soft)}.course-leo-message-editor-attachments{flex-wrap:wrap;gap:6px;display:flex}.course-leo-message-editor-chip{background:color-mix(in srgb, var(--leo-ink) 8%, transparent);color:var(--leo-ink-heading);border-radius:999px;align-items:center;gap:6px;padding:4px 8px;font-size:.8rem;display:inline-flex}.course-leo-message-editor-chip button{color:var(--leo-ink-soft);cursor:pointer;background:0 0;border:none;border-radius:999px;align-items:center;padding:0;transition:color .12s;display:inline-flex}.course-leo-message-editor-chip button:hover{color:var(--leo-ink-heading)}.course-leo-message-editor-actions{justify-content:space-between;align-items:center;gap:8px;margin-top:2px;display:flex}.course-leo-message-editor-attach{width:32px;height:32px;color:var(--leo-ink-soft);cursor:pointer;background:0 0;border:none;border-radius:999px;justify-content:center;align-items:center;transition:background .12s,color .12s;display:inline-flex}.course-leo-message-editor-attach:hover{background:color-mix(in srgb, var(--leo-ink) 8%, transparent);color:var(--leo-ink-heading)}.course-leo-message-editor-buttons{align-items:center;gap:8px;margin-left:auto;display:flex}.course-leo-message-editor-cancel,.course-leo-message-editor-save{cursor:pointer;border:1px solid #0000;border-radius:999px;padding:7px 16px;font-size:.85rem;font-weight:500;transition:background .12s,color .12s,border-color .12s,filter .12s}.course-leo-message-editor-cancel{border-color:color-mix(in srgb, var(--leo-ink) 16%, transparent);color:var(--leo-ink-heading);background:0 0}.course-leo-message-editor-cancel:hover{background:color-mix(in srgb, var(--leo-ink) 6%, transparent)}.course-leo-message-editor-save{background:var(--leo-ink-heading);color:var(--leo-paper)}.course-leo-message-editor-save:hover:not(:disabled){filter:brightness(1.1)}.course-leo-message-editor-save:disabled{opacity:.45;cursor:not-allowed}.course-leo-message-editor-cancel:focus-visible,.course-leo-message-editor-save:focus-visible,.course-leo-message-editor-attach:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);outline-offset:2px}.course-leo-compose-stop{background:var(--leo-ink-heading);width:34px;height:34px;color:var(--leo-paper);cursor:pointer;border:none;border-radius:999px;justify-content:center;align-items:center;transition:background-color .14s,filter .14s;display:inline-flex}.course-leo-compose-stop:hover{filter:brightness(1.1)}.course-leo-compose-stop:active{filter:brightness(.95)}.course-leo-compose-stop:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);outline-offset:2px}.course-leo-user-attachments{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.course-leo-user-attachment-thumb-wrap{line-height:0;display:inline-block}.course-leo-user-attachment-thumb{object-fit:cover;border:1px solid #e2e8f0;border-radius:8px;max-width:160px;max-height:120px}.course-leo-user-attachment-link{color:#1e3a5f;background:#f1f5f9;border:1px solid #d5d6d8;border-radius:8px;align-items:center;gap:6px;padding:6px 10px;font-size:.78rem;text-decoration:none;display:inline-flex}.course-leo-user-attachment-link:hover{background:#e2e8f0}.course-leo-user-attachment-link.is-pending{cursor:default;opacity:.85}.course-leo-markdown{gap:11px;display:grid}.course-leo-markdown>:first-child{margin-top:0}.course-leo-markdown>:last-child{margin-bottom:0}.course-leo-markdown p,.course-leo-markdown li,.course-leo-markdown blockquote{font-size:.95rem;line-height:1.58}.course-leo-markdown h1,.course-leo-markdown h2,.course-leo-markdown h3,.course-leo-markdown h4{margin:.4rem 0 .28rem;line-height:1.34}.course-leo-markdown p,.course-leo-markdown ul,.course-leo-markdown ol,.course-leo-markdown blockquote,.course-leo-markdown pre,.course-leo-markdown hr,.course-leo-markdown dl{margin:0}.course-leo-markdown ul,.course-leo-markdown ol{padding-left:1.45rem;list-style-position:outside}.course-leo-markdown ul{list-style-type:disc}.course-leo-markdown ol{list-style-type:decimal}.course-leo-markdown ul ul{list-style-type:circle}.course-leo-markdown ul ul ul{list-style-type:square}.course-leo-markdown ol ol{list-style-type:lower-alpha}.course-leo-markdown li{margin:.28rem 0}.course-leo-markdown li>ul,.course-leo-markdown li>ol{margin-top:.2rem;margin-bottom:.2rem}.course-leo-markdown li>p{margin:0}.course-leo-markdown li>p+p{margin-top:.45rem}.course-leo-markdown li:has(>input.course-leo-markdown-task-checkbox){margin-left:-1.2rem;padding-left:0;list-style:none}.course-leo-markdown-task-checkbox{accent-color:var(--leo-accent);vertical-align:middle;margin:0 .45rem 0 0}.course-leo-markdown hr{border:0;border-top:1px solid color-mix(in srgb, var(--leo-ink) 14%, transparent);margin:.35rem 0}.course-leo-markdown blockquote{border-left:3px solid color-mix(in srgb, var(--leo-ink) 18%, transparent);color:var(--leo-ink-soft);padding-left:.85rem}.course-leo-markdown strong{font-weight:650}.course-leo-inline-code,.course-leo-markdown :not(pre)>code{font-family:var(--font-geist-mono), ui-monospace, "SFMono-Regular", monospace;background:color-mix(in srgb, var(--leo-ink) 7%, var(--leo-surface));border:1px solid color-mix(in srgb, var(--leo-ink) 10%, transparent);border-radius:.3rem;padding:.12em .36em;font-size:.83em}.course-leo-markdown-table-wrap{border:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);background:color-mix(in srgb, var(--leo-ink) 3%, var(--leo-surface));border-radius:10px;overflow-x:auto}.course-leo-markdown-table{border-collapse:collapse;width:100%;min-width:420px;font-size:.88rem}.course-leo-markdown-table th,.course-leo-markdown-table td{text-align:left;border-bottom:1px solid color-mix(in srgb, var(--leo-ink) 10%, transparent);vertical-align:top;padding:.55rem .7rem}.course-leo-markdown-table thead th{color:var(--leo-ink-soft);background:color-mix(in srgb, var(--leo-ink) 5%, transparent);font-weight:600}.course-leo-markdown-table tbody tr:last-child td{border-bottom:0}.course-leo-code-block{border:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);background:color-mix(in srgb, var(--leo-ink) 5%, var(--leo-surface));border-radius:10px;overflow:hidden}.course-leo-code-block-header{border-bottom:1px solid color-mix(in srgb, var(--leo-ink) 10%, transparent);background:color-mix(in srgb, var(--leo-ink) 4%, transparent);justify-content:space-between;align-items:center;gap:8px;padding:.45rem .65rem;display:flex}.course-leo-code-block-language{font-family:var(--font-geist-mono), ui-monospace, monospace;letter-spacing:.04em;text-transform:uppercase;color:var(--leo-ink-soft);font-size:.72rem;font-weight:600}.course-leo-code-block-copy{width:28px;height:28px;color:var(--leo-ink-soft);cursor:pointer;background:0 0;border:0;border-radius:6px;justify-content:center;align-items:center;display:inline-flex}.course-leo-code-block-copy:hover{background:color-mix(in srgb, var(--leo-ink) 8%, transparent);color:var(--leo-ink)}.course-leo-code-block-copy-icon{width:14px;height:14px}.course-leo-code-block-body{overflow-x:auto}.course-leo-code-block.is-streaming{opacity:.92}.course-leo-markdown-diagram,.course-leo-markdown-chart{border:1px solid color-mix(in srgb, var(--leo-accent) 18%, transparent);border-left:3px solid color-mix(in srgb, var(--leo-accent) 58%, transparent);background:var(--leo-surface);box-shadow:0 1px 0 var(--leo-surface-shadow);border-radius:12px;overflow:hidden}.course-leo-markdown-diagram-toolbar{border-bottom:1px solid color-mix(in srgb, var(--leo-accent) 12%, transparent);background:color-mix(in srgb, var(--leo-accent) 5%, var(--leo-surface));justify-content:space-between;align-items:center;gap:8px;padding:.5rem .75rem;display:flex}.course-leo-markdown-diagram-label,.course-leo-markdown-chart-title{font-family:var(--leo-font-serif);letter-spacing:.01em;color:var(--leo-ink-heading);margin:0;padding:.5rem .75rem 0;font-size:.92rem;font-weight:600}.course-leo-markdown-diagram-expand{color:var(--leo-accent);cursor:pointer;background:0 0;border:0;border-radius:6px;padding:.2rem .45rem;font-size:.78rem;font-weight:600}.course-leo-markdown-diagram-expand:hover{background:color-mix(in srgb, var(--leo-accent) 12%, transparent)}.course-leo-markdown-diagram-body{background:linear-gradient(to bottom, color-mix(in srgb, var(--leo-accent) 4%, transparent), transparent 42%), var(--leo-surface);padding:.85rem .95rem 1rem;overflow-x:auto}.course-leo-markdown-diagram.is-expanded .course-leo-markdown-diagram-body{max-height:none}.course-leo-markdown-diagram-body svg{max-width:100%;height:auto;color:var(--leo-ink);margin:0 auto;display:block}.course-leo-markdown-diagram-body svg .edgeLabel p,.course-leo-markdown-diagram-body svg .label,.course-leo-markdown-diagram-body svg .nodeLabel,.course-leo-markdown-diagram-body svg text{font-family:var(--font-geist-sans), system-ui, sans-serif!important}.course-leo-markdown-diagram-skeleton{background:linear-gradient(90deg, color-mix(in srgb, var(--leo-ink) 6%, transparent) 0%, color-mix(in srgb, var(--leo-ink) 12%, transparent) 50%, color-mix(in srgb, var(--leo-ink) 6%, transparent) 100%);background-size:200% 100%;min-height:120px;animation:1.2s ease-in-out infinite leo-skeleton-shimmer}.course-leo-markdown-diagram-fallback,.course-leo-markdown-chart-fallback{font-family:var(--font-geist-mono), ui-monospace, monospace;margin:0;padding:.75rem;font-size:.82rem;overflow-x:auto}.course-leo-markdown-diagram-error,.course-leo-markdown-chart-error{color:#b1554e;border-bottom:1px solid #b1554e40;margin:0;padding:.55rem .75rem;font-size:.82rem}.course-leo-markdown-chart-scroll{background:linear-gradient(to bottom, color-mix(in srgb, var(--leo-accent) 4%, transparent), transparent 38%), var(--leo-surface);padding:.35rem .75rem;overflow-x:auto}.course-leo-markdown-chart-svg{min-width:100%;display:block}.course-leo-markdown-chart-grid{stroke:color-mix(in srgb, var(--leo-grid) 72%, transparent);stroke-width:1px;stroke-dasharray:3 5}.course-leo-markdown-chart-axis{stroke:color-mix(in srgb, var(--leo-ink) 28%, transparent);stroke-width:1.25px}.course-leo-markdown-chart-label{fill:var(--leo-ink-soft);font-family:var(--font-geist-sans), system-ui, sans-serif;font-size:11px}.course-leo-markdown-chart-bar.is-series-1,.course-leo-markdown-chart-line.is-series-1,.course-leo-markdown-chart-point.is-series-1,.course-leo-markdown-chart-legend-swatch.is-series-1{fill:var(--leo-chart-series-1);stroke:var(--leo-chart-series-1);background:var(--leo-chart-series-1)}.course-leo-markdown-chart-bar.is-series-2,.course-leo-markdown-chart-line.is-series-2,.course-leo-markdown-chart-point.is-series-2,.course-leo-markdown-chart-legend-swatch.is-series-2{fill:var(--leo-chart-series-2);stroke:var(--leo-chart-series-2);background:var(--leo-chart-series-2)}.course-leo-markdown-chart-bar.is-series-3,.course-leo-markdown-chart-line.is-series-3,.course-leo-markdown-chart-point.is-series-3,.course-leo-markdown-chart-legend-swatch.is-series-3{fill:var(--leo-chart-series-3);stroke:var(--leo-chart-series-3);background:var(--leo-chart-series-3)}.course-leo-markdown-chart-bar.is-series-4,.course-leo-markdown-chart-line.is-series-4,.course-leo-markdown-chart-point.is-series-4,.course-leo-markdown-chart-legend-swatch.is-series-4{fill:var(--leo-chart-series-4);stroke:var(--leo-chart-series-4);background:var(--leo-chart-series-4)}.course-leo-markdown-chart-bar.is-series-5,.course-leo-markdown-chart-line.is-series-5,.course-leo-markdown-chart-point.is-series-5,.course-leo-markdown-chart-legend-swatch.is-series-5{fill:var(--leo-chart-series-5);stroke:var(--leo-chart-series-5);background:var(--leo-chart-series-5)}.course-leo-markdown-chart-legend{font-family:var(--font-geist-sans), system-ui, sans-serif;color:var(--leo-ink-soft);border-top:1px solid color-mix(in srgb, var(--leo-accent) 10%, transparent);background:color-mix(in srgb, var(--leo-accent) 4%, var(--leo-surface));flex-wrap:wrap;gap:.55rem .9rem;margin:0;padding:.45rem .75rem .65rem;font-size:.78rem;list-style:none;display:flex}.course-leo-markdown-chart-legend li{align-items:center;gap:.35rem;display:inline-flex}.course-leo-markdown-chart-legend-swatch{border-radius:999px;width:10px;height:10px}.course-leo-markdown .katex{font-size:1.03em}.course-leo-markdown .katex-display{margin:.8em 0;overflow:auto hidden}.course-leo-markdown.is-token-streaming{animation:none}.course-leo-inline-link{color:#1f63b8;text-underline-offset:2px;text-decoration:underline}.course-leo-inline-link:hover{color:#184f95}.course-leo-citation-ref{font:inherit;color:#71717a;cursor:pointer;background:0 0;border:none;margin:0;padding:0;transition:color .12s;display:inline}.course-leo-citation-ref>sup{vertical-align:super;font-size:.7em;font-weight:600;line-height:0}.course-leo-citation-ref:hover{color:#3f3f46}.course-leo-citation-ref:focus-visible{outline-offset:1px;border-radius:3px;outline:2px solid #71717a}.course-leo-source-pill-num{background:color-mix(in srgb, var(--leo-ink) 10%, transparent);min-width:1.25em;height:1.25em;color:var(--leo-ink-soft);border-radius:999px;justify-content:center;align-items:center;margin-right:6px;padding:0 .3em;font-size:.72em;font-weight:600;line-height:1;display:inline-flex}.course-leo-citation-group{white-space:nowrap}.course-leo-citation-group .course-leo-citation-trigger+.course-leo-citation-trigger{margin-left:.08em}.course-leo-citation-trigger{vertical-align:baseline;align-items:baseline;margin-inline:-.08em;padding-inline:.08em;display:inline-flex}.course-leo-citation-card{z-index:9990;border:1px solid color-mix(in srgb, var(--leo-ink) 14%, transparent);background:var(--leo-surface);box-shadow:0 18px 44px var(--leo-surface-shadow), 0 2px 8px color-mix(in srgb, var(--leo-ink) 8%, transparent);border-radius:14px;flex-direction:column;animation:.13s leo-citation-card-in;display:flex;position:fixed;overflow:hidden}.course-leo-citation-card.is-above{animation-name:leo-citation-card-in-above}@keyframes leo-citation-card-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes leo-citation-card-in-above{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.course-leo-citation-card-preview{background:var(--leo-surface);cursor:pointer;border:none;flex:7;width:100%;min-height:0;margin:0;padding:0;display:block;position:relative;overflow:hidden}.course-leo-citation-card-preview-inner{pointer-events:none;display:flex;position:absolute;inset:0;overflow:hidden}.course-leo-citation-card-thumb{object-fit:contain;object-position:center top;background:color-mix(in srgb, var(--leo-ink) 4%, var(--leo-surface));width:100%;height:100%;display:block}.course-leo-citation-card-fallback{color:var(--leo-ink-soft);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:4px;padding:12px;font-size:.82rem;display:flex}.course-leo-citation-card-fallback-label{text-overflow:ellipsis;white-space:nowrap;max-width:100%;color:var(--leo-ink);font-size:.86rem;font-weight:600;display:block;overflow:hidden}.course-leo-citation-card-fallback-meta{font-size:.78rem;display:block}.course-leo-citation-card-actions{border-top:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);background:color-mix(in srgb, var(--leo-ink) 9%, var(--leo-surface));flex:3;justify-content:space-between;align-items:center;gap:10px;min-height:0;padding:10px 14px;display:flex}.course-leo-citation-card-caption{flex-direction:column;gap:2px;min-width:0;display:flex}.course-leo-citation-card-caption-title{text-overflow:ellipsis;white-space:nowrap;max-width:180px;color:var(--leo-ink);font-size:.82rem;font-weight:600;overflow:hidden}.course-leo-citation-card-caption-meta{color:var(--leo-ink-soft);font-size:.72rem}.course-leo-citation-card-buttons{flex-shrink:0;align-items:center;gap:6px;display:flex}.course-leo-citation-card-action{border:1px solid color-mix(in srgb, var(--leo-ink) 14%, transparent);background:var(--leo-surface);width:34px;height:34px;color:var(--leo-ink-soft);cursor:pointer;border-radius:9px;justify-content:center;align-items:center;transition:background-color .13s,color .13s,border-color .13s;display:inline-flex}.course-leo-citation-card-action:hover{background:var(--leo-accent-soft);border-color:color-mix(in srgb, var(--leo-accent) 35%, transparent);color:var(--leo-ink)}.course-leo-citation-card-action:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);outline-offset:2px}.course-leo-citation-card-icon{width:18px;height:18px}.course-leo-citation-card-arrow{border:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);background:color-mix(in srgb, var(--leo-surface) 86%, transparent);width:30px;height:46px;color:var(--leo-ink);cursor:pointer;box-shadow:0 2px 10px var(--leo-surface-shadow);z-index:2;border-radius:11px;justify-content:center;align-items:center;transition:background-color .13s;display:inline-flex;position:absolute;top:35%;transform:translateY(-50%)}.course-leo-citation-card-arrow:hover{background:var(--leo-surface)}.course-leo-citation-card-arrow:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);outline-offset:2px}.course-leo-citation-card-arrow.is-left{left:6px}.course-leo-citation-card-arrow.is-right{right:6px}.course-leo-citation-card-arrow-icon{width:18px;height:18px}.course-leo-document-citation{color:#52525b;font:inherit;font-size:.88em;font-weight:600;line-height:inherit;vertical-align:baseline;cursor:pointer;background:0 0;border-bottom:1px dotted #71717a8c;padding:0 .14em;text-decoration:none;display:inline}.course-leo-document-citation:hover{color:#3f3f46;border-bottom-color:#3f3f46}.course-leo-doc-quote-hit{color:inherit;-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#a1a1aa59;border-radius:2px;padding:0 2px}mark.course-leo-doc-quote-hit{border-bottom:2px solid #71717a}.course-leo-doc-quote-hit.is-cell{background:#a1a1aa59;border-radius:0;padding:0;box-shadow:inset 0 0 0 2px #71717a}.course-leo-doc-selectable ::selection{background-color:color-mix(in srgb, var(--leo-accent) 34%, transparent)}.course-leo-pdf-text-layer{-webkit-user-select:text;user-select:text}.course-leo-pdf-text-layer>span{cursor:text;pointer-events:auto}.course-leo-sources{gap:8px;margin-top:2px;display:grid}.course-leo-sources-title{letter-spacing:.01em;text-transform:uppercase;color:var(--leo-ink-soft);margin:0;font-size:.76rem;line-height:1.3}.course-leo-source-pills{flex-wrap:wrap;gap:6px;display:flex}.course-leo-source-pill{border:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);color:var(--leo-ink-soft);background:color-mix(in srgb, var(--leo-ink) 4%, var(--leo-surface));cursor:pointer;border-radius:999px;align-items:center;padding:4px 10px;font-size:.78rem;font-weight:400;line-height:1.3;text-decoration:none;transition:border-color .14s,background-color .14s,color .14s;display:inline-flex}button.course-leo-source-pill{font:inherit;appearance:none;margin:0;font-size:.78rem;font-weight:400}a.course-leo-source-pill:hover,button.course-leo-source-pill:hover{border-color:color-mix(in srgb, var(--leo-ink) 20%, transparent);background:color-mix(in srgb, var(--leo-ink) 7%, var(--leo-surface));color:var(--leo-ink)}a.course-leo-source-pill:focus-visible,button.course-leo-source-pill:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);outline-offset:2px}span.course-leo-source-pill{cursor:default}.course-leo-source-pill.is-assignment{font-style:normal}.course-leo-trace-feed{gap:6px;margin-bottom:4px;display:grid}.course-leo-scope-chip{color:#4a5b73;letter-spacing:.01em;background:#f4f7fb;border:1px solid #d6deea;border-radius:999px;align-self:flex-start;align-items:center;margin-bottom:4px;padding:2px 8px;font-size:.72rem;font-weight:500;line-height:1.4;display:inline-flex}.course-leo-scope-chip.is-focused{color:#5b3da1;background:#f5efff;border-color:#d8c9f0}.course-leo-scope-chip.is-scoped{color:#2f6a48;background:#f0f8f2;border-color:#c9dfd1}.course-leo-trace-summary-button{text-align:left;width:fit-content;max-width:100%;font:inherit;cursor:pointer;background:0 0;border:0;justify-content:flex-start;align-self:flex-start;align-items:center;gap:8px;padding:0;display:flex}.course-leo-trace-summary-button:disabled{cursor:default}.course-leo-trace-summary{letter-spacing:-.01em;color:#0000;background:linear-gradient(90deg,#9ea9b6 10%,#d8dee5 48%,#9ea9b6 90%) 0 0/220% 100%;-webkit-background-clip:text;background-clip:text;margin:0;font-size:.92rem;font-weight:500;line-height:1.25;animation:1.8s linear infinite course-leo-stream-gradient,.36s cubic-bezier(.22,.61,.36,1) both course-leo-trace-summary-swap;display:inline-block}.course-leo-trace-summary.is-static{color:#98a2ad;background:0 0;-webkit-background-clip:border-box;background-clip:border-box;animation:.36s cubic-bezier(.22,.61,.36,1) both course-leo-trace-summary-swap}@keyframes course-leo-trace-summary-swap{0%{opacity:0;filter:blur(1.5px);transform:translateY(4px)}to{opacity:1;filter:blur();transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.course-leo-trace-summary,.course-leo-trace-summary.is-static{animation:none}}.course-leo-trace-summary-caret{color:#98a2ad;stroke-width:2.35px;flex:none;width:18px;height:18px;transition:transform .18s;transform:rotate(-90deg)}.course-leo-trace-summary-caret.is-expanded{transform:rotate(0)}.course-leo-trace-list{gap:9px;margin:0;padding:0;list-style:none;display:grid}.course-leo-trace-item{color:#9aa3ad;margin:0;font-size:.8rem;line-height:1.5}.course-leo-trace-item-label{min-width:0}.course-leo-trace-doc-link{font:inherit;color:#6b7280;cursor:pointer;text-underline-offset:2px;background:0 0;border:0;margin:0;padding:0;font-weight:500}.course-leo-trace-doc-link:hover{color:#4b5563;text-decoration:underline}.course-leo-trace-doc-link.is-static{cursor:default}html.dark .course-leo-trace-doc-link{color:#cbd5e1}html.dark .course-leo-trace-doc-link:hover{color:#e2e8f0}.course-leo-error-line{color:#9b2d34;margin:0;font-size:.78rem;line-height:1.35}.course-leo-input-dock{z-index:15;pointer-events:none;background:0 0;border-top:0;padding:30px 20px 8px;position:absolute;bottom:0;left:0;right:0}.course-leo-input-dock:before{content:"";z-index:-1;pointer-events:none;background:linear-gradient(#fff0 0%,#ffffffe6 30%,#fffffffa 52%,#fff 100%);position:absolute;inset:0}.course-leo-input-dock>*{pointer-events:auto}.course-leo-suggested-actions{gap:12px;width:min(980px,100%);margin:0 auto 10px;display:flex}.course-leo-suggested-action-column{flex:1;min-width:0;display:grid}.course-leo-suggested-action-button{text-align:left;color:#152b42;cursor:pointer;background:#ffffffeb;border:1px solid #d2dce7;border-radius:24px;gap:3px;width:100%;min-height:66px;padding:12px 14px;transition:transform .18s,background-color .18s,box-shadow .18s;display:grid;box-shadow:0 5px 14px #132b4312}.course-leo-suggested-action-title{font-size:.92rem;font-weight:500;line-height:1.15}.course-leo-suggested-action-label{color:#61748a;font-size:.83rem;line-height:1.2}.course-leo-compose-shell{width:min(980px,100%);margin:0 auto;position:relative}.course-leo-compose-input-row{background:#fff;border:1px solid #d5e0eb;border-radius:24px;grid-template-columns:minmax(0,1fr) auto;align-items:flex-end;gap:8px;padding:8px 10px 8px 14px;display:grid;position:relative;box-shadow:0 4px 14px #122a440f}.course-leo-compose-input{resize:none;color:#1f354c;width:100%;min-height:38px;max-height:120px;font:inherit;background:#fff;border:0;outline:0;padding:8px 0;font-size:.9rem;line-height:1.4;transition:min-height .13s cubic-bezier(.4,0,.2,1);overflow-y:auto}.course-leo-compose-input::placeholder{color:#75889a}.course-leo-compose-input:focus{outline:0}.course-leo-compose-actions{align-items:center;gap:6px;display:inline-flex}.course-leo-attach-menu-wrap{position:relative}.course-leo-attach-trigger{color:#355879;transform-origin:50%;width:34px;height:34px;box-shadow:none;cursor:pointer;background:0 0;border:0;border-radius:10px;place-items:center;padding:0;display:grid}.course-leo-attach-icon{width:22px;height:22px}.course-leo-attach-menu{z-index:14;background:#fff;border:1px solid #d4deea;border-radius:10px;min-width:130px;padding:6px;position:absolute;bottom:calc(100% + 8px);right:0;box-shadow:0 12px 26px #0f274229}.course-leo-attach-option{color:#26486a;width:100%;font:inherit;text-align:left;cursor:pointer;background:#fff;border:0;border-radius:8px;padding:7px 8px;font-size:.8rem}.course-leo-compose-send{color:#fff;transform-origin:50%;cursor:pointer;background:radial-gradient(circle at 24% 22%,#7dd0ff24,#0000 56%),linear-gradient(132deg,#16548c 0%,#2e4f94 64%,#4f4b9a 100%);border:1px solid #395388;border-radius:999px;place-items:center;width:34px;height:34px;padding:0;display:grid}.course-leo-compose-send:disabled{opacity:1;color:#93a2b2;cursor:not-allowed;background:#e6ebf1;border-color:#cfd8e2}.course-leo-compose-send:disabled:hover{filter:none;transform:none}.course-leo-compose-send-icon{width:26px;height:26px}.course-leo-chat-disclaimer{text-align:center;color:color-mix(in srgb, var(--leo-ink-soft) 28%, transparent);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;letter-spacing:.02em;margin:10px 0 0;font-size:.68rem;font-weight:500;line-height:1.45}@media (max-width:920px){.workspace-chat-card .course-leo-chat-stream,.workspace-chat-card .course-leo-chat-stream.is-empty,.workspace-chat-card .course-leo-input-dock{padding-left:0;padding-right:0}}.course-leo-stream-status{text-align:left;color:#0000;background:linear-gradient(90deg,#9ea9b6 10%,#d8dee5 48%,#9ea9b6 90%) 0 0/220% 100%;-webkit-background-clip:text;background-clip:text;margin:4px 0 0;font-size:.84rem;font-weight:500;line-height:1.3;animation:1.8s linear infinite course-leo-stream-gradient}.course-leo-stream-error{color:#9b2d34;text-align:left;margin:4px 0 0;font-size:.78rem;line-height:1.3}@keyframes course-leo-stream-gradient{0%{background-position:0%}to{background-position:200%}}@media (prefers-reduced-motion:reduce){.course-leo-trace-summary,.course-leo-stream-status{background-position:100%;animation:none}.course-leo-thread-delete.is-busy .course-leo-thread-delete-icon{opacity:.5;animation:none}}.course-leo-tutorial-backdrop{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;pointer-events:none;font-family:var(--font-manrope), var(--font-lato), sans-serif;background:#08132180;place-items:center;padding:8px;transition:opacity .3s;display:grid;position:fixed;inset:0}.course-leo-tutorial-backdrop.is-visible{opacity:1;pointer-events:auto}.course-leo-tutorial-card{opacity:0;background:#fff;border:1px solid #d5e1ec;border-radius:24px;flex-direction:column;width:min(94vw,1120px);max-height:calc(100vh - 1rem);transition:opacity .3s,transform .3s;display:flex;position:relative;overflow:hidden;transform:translateY(-8px)scale(.95);box-shadow:0 24px 46px #071b3057}.course-leo-tutorial-card.is-visible{opacity:1;transform:translateY(0)scale(1)}.course-leo-tutorial-bg-track{pointer-events:none;will-change:opacity;width:100%;height:100%;position:absolute;inset:0}.course-leo-tutorial-blobs{width:100%;height:100%;position:relative}.course-leo-tutorial-blob{filter:blur(72px);border-radius:999px;position:absolute}.course-leo-tutorial-dismiss{z-index:30;color:#355779;cursor:pointer;background:#ffffffd9;border:1px solid #d7e2ec;border-radius:999px;place-items:center;width:36px;height:36px;font-size:1.75rem;line-height:1;display:grid;position:absolute;top:14px;right:14px}.course-leo-tutorial-scroller{z-index:10;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;-ms-overflow-style:none;scrollbar-width:none;width:100%;display:flex;position:relative;overflow-x:auto}.course-leo-tutorial-scroller::-webkit-scrollbar{display:none}.course-leo-tutorial-slide{scroll-snap-align:start;flex-shrink:0;align-items:stretch;width:100%;min-width:100%;display:flex}.course-leo-tutorial-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:36px;width:100%;padding:24px 36px 16px;display:grid}.course-leo-tutorial-copy{flex-direction:column;justify-content:center;display:flex}.course-leo-tutorial-title{color:#0c1522;letter-spacing:-.03em;margin:0;font-size:clamp(2.4rem,5.1vw,5rem);font-weight:600;line-height:1.02}.course-leo-tutorial-title span{color:#0000;-webkit-background-clip:text;background-clip:text}.course-leo-tutorial-subtitle{color:#4e5f72;max-width:520px;margin:12px 0 0;font-size:1.1rem;line-height:1.45}.course-leo-tutorial-cta-row{align-items:center;gap:10px;margin-top:26px;display:inline-flex}.course-leo-tutorial-cta{height:42px;font:inherit;cursor:pointer;border:0;border-radius:12px;padding:0 24px;font-size:.97rem;font-weight:600;transition:filter .18s,transform .18s}.course-leo-tutorial-cta-secondary{color:#284966;background:#ffffffc7;border:1px solid #d0dbe6}.course-leo-tutorial-cta-primary{color:#111;box-shadow:0 8px 20px #091e3629}.course-leo-tutorial-media{justify-content:center;align-items:center;min-height:260px;display:flex;overflow:hidden}.course-leo-tutorial-slide.is-intro .course-leo-tutorial-grid{padding-right:47px}.course-leo-tutorial-slide.is-intro .course-leo-tutorial-media{justify-content:flex-end;margin-right:-47px;overflow:visible}.course-leo-tutorial-walk-wrap{position:relative}.course-leo-tutorial-walk-video{aspect-ratio:1;object-fit:contain;object-position:right center;filter:drop-shadow(0 16px 24px #1a2c4329);width:min(360px,100%);height:auto}.course-leo-tutorial-walk-video.is-hidden{display:none}.course-leo-tutorial-intro-video,.course-leo-tutorial-ready-video{aspect-ratio:1;object-fit:contain;filter:drop-shadow(0 16px 24px #1a2c4329);width:min(360px,100%);height:auto}.course-leo-tutorial-image-wrap{aspect-ratio:1;place-items:center;width:min(420px,100%);display:grid;overflow:visible}.course-leo-tutorial-image{object-fit:contain;width:min(390px,100%);height:auto;animation:10s ease-in-out infinite course-leo-float-slow;-webkit-mask-image:radial-gradient(circle,#000 73%,#0000 100%);mask-image:radial-gradient(circle,#000 73%,#0000 100%)}.course-leo-tutorial-image-tools{animation-delay:1.4s}.course-leo-tutorial-image-process{animation-delay:2.8s}@keyframes course-leo-float-slow{0%{transform:translateY(0)}50%{transform:translateY(-8px)}to{transform:translateY(0)}}.course-leo-tutorial-placeholder{aspect-ratio:1;background:#ffffff8c;border:1px solid #c8d4e0e0;border-radius:24px;width:min(420px,100%);position:relative;overflow:hidden}.course-leo-tutorial-placeholder-minimal:before{content:"";background:radial-gradient(circle at 22% 24%,#71717a3d,#0000 46%),radial-gradient(circle at 78% 36%,#52525b3d,#0000 44%),radial-gradient(circle at 52% 74%,#fbbf2438,#0000 46%);position:absolute;inset:0}.course-leo-tutorial-placeholder-orb{filter:blur(2px);background:#71717a3d;border-radius:999px;width:110px;height:110px;position:absolute;top:28%;left:30%}.course-leo-tutorial-placeholder-orb.is-secondary{background:#eab30842;width:86px;height:86px;top:52%;left:54%}.course-leo-tutorial-placeholder-beta{place-items:center;display:grid}.course-leo-tutorial-beta-pill{color:#3f3f46;letter-spacing:.01em;background:#ffffffd1;border:1px solid #52525b52;border-radius:999px;justify-content:center;align-items:center;min-width:132px;height:46px;font-size:1.02rem;font-weight:600;display:inline-flex}.course-leo-tutorial-placeholder-ready{background:0 0;border:0}.course-leo-tutorial-dots{z-index:10;justify-content:center;align-items:center;gap:10px;margin-top:auto;padding:10px 0 18px;display:flex;position:relative}.course-leo-tutorial-dot{cursor:pointer;background:#64748b45;border:0;border-radius:999px;width:10px;height:10px;padding:0;transition:width .18s,background-color .18s}.course-leo-tutorial-dot.is-active{background:#52525b;border-radius:6px;width:24px}.course-leo-mode-trigger:hover,.course-leo-attach-trigger:hover,.course-leo-attach-option:hover,.course-leo-suggested-action-button:hover,.course-leo-tutorial-cta-secondary:hover,.course-leo-tutorial-dismiss:hover{background:#f4f4f5}.course-leo-attach-trigger:hover{color:#1f3f61}.course-leo-icon-button:hover{background:#f4f4f5}.course-leo-compose-send:hover,.course-leo-tutorial-cta-primary:hover{filter:brightness(1.05)}.course-leo-mode-option,.course-leo-mode-trigger,.course-leo-icon-button,.course-leo-thread-select,.course-leo-thread-delete,.course-leo-attach-option,.course-leo-attach-trigger,.course-leo-suggested-action-button,.course-leo-compose-send,.course-leo-tutorial-dismiss,.course-leo-tutorial-cta{cursor:pointer}.course-leo-mode-trigger:focus-visible,.course-leo-icon-button:focus-visible,.course-leo-thread-select:focus-visible,.course-leo-thread-delete:focus-visible,.course-leo-attach-trigger:focus-visible,.course-leo-attach-option:focus-visible,.course-leo-suggested-action-button:focus-visible,.course-leo-compose-send:focus-visible,.course-leo-tutorial-dismiss:focus-visible,.course-leo-tutorial-cta:focus-visible,.course-leo-mode-option:focus-visible,.course-leo-tutorial-dot:focus-visible{outline-offset:2px;outline:2px solid #4c76a2}@media (max-width:920px){.course-leo-chat-layout{display:block}.course-leo-thread-sidebar{width:40px;height:40px;top:10px;left:10px}.course-leo-thread-sidebar.is-open{width:min(92vw,336px);height:calc(100% - 20px)}.course-leo-thread-sidebar-head{min-height:48px}.course-leo-thread-list{max-height:none;padding-top:6px}.course-leo-chat-floating-actions{flex-wrap:wrap;justify-content:flex-start;top:10px;left:12px;right:12px}.course-leo-mode-selector{flex:100%;min-width:0}.course-leo-model-select-wrap{flex:100%}.course-leo-model-select{width:100%;max-width:none}.course-leo-mode-trigger{justify-content:space-between;width:100%}.course-leo-icon-button{width:38px;height:38px}.course-leo-mode-menu{width:min(300px,100vw - 28px);left:0;right:auto}.course-leo-chat-stream{padding:124px 12px}.course-leo-assignment-banner{width:calc(100% - 24px);max-width:none;padding:7px 10px;top:56px;left:50%;right:auto;transform:translate(-50%)}.course-leo-chat-stream.has-assignment-banner{padding-top:168px}.course-leo-chat-stream.is-streaming{padding-bottom:164px}.course-leo-chat-stream.is-empty{padding:124px 12px 14px}.course-leo-chat-page.is-empty-chat .course-leo-chat-stream{padding-bottom:238px}.course-leo-user-bubble{max-width:100%}.course-leo-welcome{margin-top:-48px}.course-leo-welcome-video{width:196px;height:196px}.course-leo-welcome h2{font-size:1.62rem}.course-leo-welcome-document-launcher{gap:10px;margin-top:10px}.course-leo-welcome-document-previews{grid-template-columns:1fr;gap:7px}.course-leo-welcome-document-card{padding:9px 10px}.course-leo-input-dock{padding:20px 12px 7px}.course-leo-suggested-actions{flex-direction:column;gap:8px;margin-bottom:8px}.course-leo-suggested-action-button{border-radius:20px;min-height:58px;padding:10px 11px}.course-leo-suggested-action-title{font-size:.88rem}.course-leo-suggested-action-label{font-size:.78rem}.course-leo-compose-input-row{border-radius:18px;grid-template-columns:1fr;padding:7px 8px 7px 11px}.course-leo-compose-input{min-height:34px;padding:6px 0;font-size:.86rem}.course-leo-compose-actions{justify-content:flex-end;width:100%}.course-leo-tutorial-card{border-radius:18px;width:calc(100vw - 12px);max-height:calc(100vh - 12px)}.course-leo-tutorial-grid{grid-template-columns:1fr;gap:16px;padding:18px 16px 12px}.course-leo-tutorial-title{font-size:2.24rem}.course-leo-tutorial-subtitle{margin-top:8px;font-size:.95rem;line-height:1.42}.course-leo-tutorial-cta-row{margin-top:16px}.course-leo-tutorial-media{min-height:170px}.course-leo-tutorial-walk-video,.course-leo-tutorial-intro-video,.course-leo-tutorial-ready-video{width:min(210px,100%)}.course-leo-tutorial-placeholder{width:min(240px,100%)}.course-leo-tutorial-dots{padding-bottom:12px}.course-leo-compose-pending-files{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.course-leo-compose-pending-chip{color:#334155;background:#f8fafc;border:1px solid #d5d6d8;border-radius:8px;align-items:center;gap:6px;max-width:100%;padding:4px 8px;font-size:.75rem;display:inline-flex}.course-leo-compose-pending-chip button{cursor:pointer;color:#64748b;background:0 0;border:0;padding:0 2px;font-size:1rem;line-height:1}}html.dark .course-leo-chat-page{color:#e2e8f0;background:#0b1220}html.dark .course-leo-chat-page.is-history-card-layout .course-leo-thread-sidebar{-webkit-backdrop-filter:blur(16px)saturate(1.15);backdrop-filter:blur(16px)saturate(1.15);background:#0f172aeb;border-color:#334155f2;box-shadow:0 10px 24px #00000059}html.dark .course-leo-chat-page.is-history-card-layout .course-leo-thread-sidebar.is-open{-webkit-backdrop-filter:blur(24px)saturate(1.2);backdrop-filter:blur(24px)saturate(1.2);background:#0f172af5}html.dark .course-leo-chat-page.is-history-card-layout .course-leo-chat-main{background:#0f172ad1;border-color:#334155f2;box-shadow:0 10px 24px #00000052}html.dark .course-leo-thread-sidebar{border-color:#475569}html.dark .course-leo-thread-sidebar.is-open{-webkit-backdrop-filter:blur(22px)saturate(1.15);backdrop-filter:blur(22px)saturate(1.15);background:#0f172af0;box-shadow:0 18px 38px #00000080}html.dark .course-leo-thread-sidebar-head h3{color:#f1f5f9}html.dark .course-leo-thread-feedback{color:#94a3b8}html.dark .course-leo-thread-feedback.is-error{color:#fca5a5}html.dark .course-leo-thread-select{color:#e2e8f0;background:#1e293b;border-color:#475569}html.dark .course-leo-thread-select.is-active{background:#334155;border-color:#64748b}html.dark .course-leo-thread-age{color:#94a3b8}html.dark .course-leo-thread-document-badge{color:#bfdbfe;background:#1e40af3d;border-color:#60a5fa59}html.dark .course-leo-thread-delete{color:#fecaca;background:#7f1d1d66;border-color:#f8717159}html.dark .course-leo-chat-stream{background:#0b1220}html.dark .course-leo-response{color:#e2e8f0}html.dark .course-leo-user-bubble{color:#f1f5f9;background:#334155}html.dark .course-leo-markdown h1,html.dark .course-leo-markdown h2,html.dark .course-leo-markdown h3,html.dark .course-leo-markdown h4{color:#f8fafc}html.dark .course-leo-markdown pre{background:#0f172a;border:1px solid #334155;border-radius:10px;padding:.75rem .85rem;overflow-x:auto}html.dark .course-leo-markdown :not(pre)>code{color:#e2e8f0;background:#334155d9;border-radius:5px;padding:.12em .4em}html.dark .course-leo-markdown blockquote{color:#cbd5e1;border-left:3px solid #475569;padding-left:.75rem}html.dark .course-leo-inline-link{color:#93c5fd}html.dark .course-leo-inline-link:hover{color:#bfdbfe}html.dark .course-leo-citation-ref{color:#94a3b8}html.dark .course-leo-citation-ref:hover{color:#f1f5f9}html.dark .course-leo-document-citation{color:#cbd5e1;border-bottom-color:#94a3b8a6}html.dark .course-leo-document-citation:hover{color:#f1f5f9;border-bottom-color:#f1f5f9}html.dark .course-leo-doc-quote-hit{color:inherit;background:#94a3b847}html.dark mark.course-leo-doc-quote-hit{border-bottom-color:#94a3b8}html.dark .course-leo-doc-quote-hit.is-cell{background:#94a3b852;box-shadow:inset 0 0 0 2px #94a3b8}html.dark .course-leo-welcome-eyebrow{color:#7dd3fc}html.dark .course-leo-welcome h2{color:#f1f5f9}html.dark .course-leo-welcome-copy{color:#94a3b8}html.dark .course-leo-welcome-scope-note,html.dark .course-leo-welcome-scope-work-prefix{color:#64748b}html.dark .course-leo-welcome-scope-work-name{color:#94a3b8}html.dark .course-leo-welcome-visibility-line{color:#64748b}html.dark .course-leo-welcome-visibility-trigger{color:#94a3b8}html.dark .course-leo-welcome-visibility-trigger:hover{color:#cbd5e1}html.dark .course-leo-welcome-visibility-menu{background:#1e293b;border-color:#475569;box-shadow:0 14px 36px #00000073}html.dark .course-leo-welcome-visibility-option{color:#e2e8f0}html.dark .course-leo-welcome-visibility-option:hover{background:#334155}html.dark .course-leo-welcome-document-primary{color:#0f172a;background:#f8fafc;border-color:#e2e8f029;box-shadow:0 14px 30px #00000047}html.dark .course-leo-welcome-document-primary:hover{background:#e2e8f0}html.dark .course-leo-welcome-document-primary-icon{background:#0f172a1f}html.dark .course-leo-welcome-document-card{background:#18181bd1;border-color:#3f3f46eb;box-shadow:0 12px 26px #00000038}html.dark .course-leo-welcome-document-card:hover{background:#27272aeb;border-color:#71717af5}html.dark .course-leo-welcome-document-kind,html.dark .course-leo-welcome-document-subtitle{color:#a1a1aa}html.dark .course-leo-welcome-document-title{color:#f4f4f5}html.dark .course-leo-welcome-document-meta{color:#71717a}html.dark .course-leo-trace-summary.is-static,html.dark .course-leo-trace-summary-caret{color:#94a3b8}html.dark .course-leo-trace-item{color:#64748b}html.dark .course-leo-error-line,html.dark .course-leo-stream-error{color:#fca5a5}html.dark .course-leo-user-attachment-thumb{border-color:#475569}html.dark .course-leo-user-attachment-link{color:#93c5fd;background:#1e293b;border-color:#475569}html.dark .course-leo-user-attachment-link:hover{background:#334155}html.dark .course-leo-input-dock:before{background:linear-gradient(#0b122000 0%,#0b1220e0 30%,#0b1220f5 52%,#0b1220 100%)}html.dark .course-leo-suggested-action-button{color:#e2e8f0;background:#1e293beb;border-color:#475569;box-shadow:0 5px 14px #00000038}html.dark .course-leo-suggested-action-label{color:#94a3b8}html.dark .course-leo-compose-input-row{background:#1e293b;border-color:#475569;box-shadow:0 4px 14px #00000040}html.dark .course-leo-compose-input{color:#f1f5f9;background:#1e293b}html.dark .course-leo-compose-input::placeholder{color:#94a3b8}html.dark .course-leo-attach-trigger,html.dark .course-leo-attach-menu{color:#cbd5e1;background:#1e293b;border-color:#475569}html.dark .course-leo-attach-trigger{box-shadow:none;background:0 0;border-color:#0000}html.dark .course-leo-attach-option{color:#e2e8f0;background:#1e293b}html.dark .course-leo-attach-option:hover{background:#334155}html.dark .course-leo-compose-send:disabled{color:#64748b;background:#334155;border-color:#475569}html.dark .course-leo-compose-pending-chip{color:#cbd5e1;background:#1e293b;border-color:#475569}html.dark .course-leo-compose-pending-chip button{color:#94a3b8}html.dark .course-leo-chat-disclaimer{color:color-mix(in srgb, var(--leo-ink-soft) 28%, transparent)}html.dark .course-leo-sign-out-button{color:#e2e8f0;background:#0f172aeb;border-color:#475569bf;box-shadow:inset 0 1px #ffffff0f,0 6px 18px #00000040}html.dark .course-leo-sign-out-button:hover{background:#1e293bf2}html.dark .course-leo-assignment-banner{color:#e2e8f0;background:#0f172aeb;border-color:#475569bf;box-shadow:inset 0 1px #ffffff0f,0 6px 18px #00000040}html.dark .course-leo-assignment-banner-label{color:#94a3b8}html.dark .course-leo-assignment-banner-title{color:#f1f5f9}html.dark .course-leo-model-select,html.dark .course-leo-mode-trigger,html.dark .course-leo-icon-button{color:#e2e8f0;background:#1e293beb;border-color:#475569d9;box-shadow:inset 0 1px #ffffff0f,0 6px 18px #00000040}html.dark .course-leo-mode-trigger-mode{color:#cbd5e1}html.dark .course-leo-mode-menu{background:#0f172af7;border-color:#334155;box-shadow:0 18px 36px #00000073}html.dark .course-leo-mode-option{color:#e2e8f0}html.dark .course-leo-mode-option small{color:#94a3b8}html.dark .course-leo-mode-option.is-active{background:#3341558c;border-color:#475569}html.dark .course-leo-icon-button:hover,html.dark .course-leo-mode-trigger:hover,html.dark .course-leo-suggested-action-button:hover{background:#334155}html.dark .course-leo-tutorial-card{background:#0f172a;border-color:#334155;box-shadow:0 24px 46px #0000008c}html.dark .course-leo-tutorial-title{color:#f1f5f9}html.dark .course-leo-tutorial-subtitle{color:#94a3b8}html.dark .course-leo-tutorial-dismiss{color:#cbd5e1;background:#1e293beb;border-color:#475569}html.dark .course-leo-thread-toggle.course-leo-icon-button{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0}html.dark .course-leo-thread-toggle.course-leo-icon-button:hover{background:#94a3b824}html.dark .course-leo-thread-toggle.course-leo-icon-button:active{background:#94a3b838}.workspace-chat-card .course-leo-chat-page,html.dark .workspace-chat-card .course-leo-chat-page{background:0 0}.workspace-chat-card .course-leo-chat-page.is-history-card-layout .course-leo-chat-layout{padding:0}.workspace-chat-card .course-leo-chat-page.is-history-card-layout .course-leo-chat-main,html.dark .workspace-chat-card .course-leo-chat-page.is-history-card-layout .course-leo-chat-main{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;border-radius:0}.workspace-chat-card .course-leo-chat-stream,html.dark .workspace-chat-card .course-leo-chat-stream{background:0 0;padding-left:0;padding-right:0}.workspace-chat-card .course-leo-message-list,.workspace-chat-card .course-leo-suggested-actions,.workspace-chat-card .course-leo-compose-shell{width:100%;max-width:100%;margin-left:0;margin-right:0}.workspace-chat-card .course-leo-input-dock{padding-bottom:0;padding-left:0;padding-right:0}.workspace-chat-card .course-leo-input-dock:before,html.dark .workspace-chat-card .course-leo-input-dock:before{background:0 0}.workspace-chat-card .course-leo-thread-sidebar{border-color:#d4d4d8e6}.workspace-chat-card .course-leo-thread-sidebar.is-open{-webkit-backdrop-filter:blur(24px)saturate(1.2);backdrop-filter:blur(24px)saturate(1.2);background:#fafafaf0;box-shadow:0 12px 28px #18181b14}.workspace-chat-card .course-leo-thread-sidebar-head h3,.workspace-chat-card .course-leo-response,.workspace-chat-card .course-leo-mode-option,.workspace-chat-card .course-leo-mode-trigger,.workspace-chat-card .course-leo-icon-button,.workspace-chat-card .course-leo-model-select,.workspace-chat-card .course-leo-compose-input,.workspace-chat-card .course-leo-attach-option{color:#27272a}.workspace-chat-card .course-leo-welcome-scope-note,.workspace-chat-card .course-leo-welcome-visibility-line,.workspace-chat-card .course-leo-welcome-scope-work-prefix{color:#a1a1aa}.workspace-chat-card .course-leo-welcome-scope-work-name,.workspace-chat-card .course-leo-welcome-visibility-trigger{color:#71717a}.workspace-chat-card .course-leo-welcome-visibility-menu{background:#fffffff5;border-color:#d4d4d8f2;box-shadow:0 18px 36px #18181b24}.workspace-chat-card .course-leo-welcome-visibility-option{color:#27272a}.workspace-chat-card .course-leo-welcome-visibility-option:hover{background:#f4f4f5}.workspace-chat-card .course-leo-thread-vis-trigger{color:#52525b;background:#ffffffc7;border-color:#d4d4d8f2}.workspace-chat-card .course-leo-thread-vis-menu{background:#fffffff5;border-color:#d4d4d8f2;box-shadow:0 18px 36px #18181b24}.workspace-chat-card .course-leo-thread-vis-option{color:#27272a}.workspace-chat-card .course-leo-thread-vis-option:hover{background:#f4f4f5}.workspace-chat-card .course-leo-thread-feedback,.workspace-chat-card .course-leo-thread-age,.workspace-chat-card .course-leo-welcome-copy,.workspace-chat-card .course-leo-suggested-action-label,.workspace-chat-card .course-leo-sources-title,.workspace-chat-card .course-leo-mode-option small,.workspace-chat-card .course-leo-compose-input::placeholder{color:#71717a}.workspace-chat-card .course-leo-thread-select,.workspace-chat-card .course-leo-suggested-action-button,.workspace-chat-card .course-leo-compose-input-row,.workspace-chat-card .course-leo-attach-trigger,.workspace-chat-card .course-leo-attach-menu,.workspace-chat-card .course-leo-model-select,.workspace-chat-card .course-leo-mode-trigger,.workspace-chat-card .course-leo-icon-button{background:#ffffffc7;border-color:#d4d4d8e6;box-shadow:0 5px 14px #18181b0f}.workspace-chat-card .course-leo-attach-trigger{box-shadow:none;background:0 0;border-color:#0000}.workspace-chat-card .course-leo-thread-toggle.course-leo-icon-button{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0}.workspace-chat-card .course-leo-thread-select.is-active,.workspace-chat-card .course-leo-mode-option.is-active{background:#f4f4f5d1;border-color:#a1a1aad9}.workspace-chat-card .course-leo-mode-menu{background:#ffffffe6;border-color:#d4d4d8e6;box-shadow:0 18px 36px #18181b1f}.workspace-chat-card .course-leo-user-bubble{color:#27272a;background:#e7e5e4}.workspace-chat-card .course-leo-welcome-eyebrow,.workspace-chat-card .course-leo-welcome h2,.workspace-chat-card .course-leo-inline-link,.workspace-chat-card .course-leo-user-attachment-link,.workspace-chat-card .course-leo-mode-trigger-brand,.workspace-chat-card .course-leo-mode-trigger-mode{color:#3f3f46;background:0 0;-webkit-background-clip:border-box;background-clip:border-box}.workspace-chat-card .course-leo-inline-link:hover{color:#18181b}.workspace-chat-card .course-leo-citation-ref{color:#71717a}.workspace-chat-card .course-leo-citation-ref:hover{color:#3f3f46}.workspace-chat-card .course-leo-document-citation{color:#52525b;border-bottom-color:#a1a1aa}.workspace-chat-card .course-leo-document-citation:hover{color:#3f3f46;border-bottom-color:#3f3f46}.workspace-chat-card .course-leo-user-attachment-link{color:#3f3f46;background:#f4f4f5;border-color:#d4d4d8}.workspace-chat-card .course-leo-user-attachment-link:hover,.workspace-chat-card .course-leo-mode-trigger:hover,.workspace-chat-card .course-leo-attach-trigger:hover,.workspace-chat-card .course-leo-attach-option:hover,.workspace-chat-card .course-leo-suggested-action-button:hover,.workspace-chat-card .course-leo-icon-button:hover{background:#e4e4e7}.workspace-chat-card .course-leo-thread-toggle.course-leo-icon-button:hover{box-shadow:none;background:#e4e4e7d9;transform:none}.workspace-chat-card .course-leo-thread-toggle.course-leo-icon-button:active{box-shadow:none;background:#d4d4d8f2;transform:none}.workspace-chat-card .course-leo-compose-send{color:#fff;background:#3f3f46;border-color:#3f3f46}.workspace-chat-card .course-leo-compose-send:disabled{color:#a1a1aa;background:#e4e4e7;border-color:#d4d4d8}.workspace-chat-card .course-leo-mode-trigger:focus-visible,.workspace-chat-card .course-leo-icon-button:focus-visible,.workspace-chat-card .course-leo-thread-select:focus-visible,.workspace-chat-card .course-leo-thread-delete:focus-visible,.workspace-chat-card .course-leo-attach-trigger:focus-visible,.workspace-chat-card .course-leo-attach-option:focus-visible,.workspace-chat-card .course-leo-suggested-action-button:focus-visible,.workspace-chat-card .course-leo-compose-send:focus-visible,.workspace-chat-card .course-leo-mode-option:focus-visible{outline-color:#71717a}html.dark .workspace-chat-card .course-leo-thread-sidebar{border-color:#3f3f46e6}html.dark .workspace-chat-card .course-leo-thread-sidebar.is-open{-webkit-backdrop-filter:blur(24px)saturate(1.15);backdrop-filter:blur(24px)saturate(1.15);background:#18181bf0;box-shadow:0 12px 28px #00000052}html.dark .workspace-chat-card .course-leo-thread-sidebar-head h3,html.dark .workspace-chat-card .course-leo-response,html.dark .workspace-chat-card .course-leo-markdown h1,html.dark .workspace-chat-card .course-leo-markdown h2,html.dark .workspace-chat-card .course-leo-markdown h3,html.dark .workspace-chat-card .course-leo-markdown h4,html.dark .workspace-chat-card .course-leo-mode-option,html.dark .workspace-chat-card .course-leo-mode-trigger,html.dark .workspace-chat-card .course-leo-icon-button,html.dark .workspace-chat-card .course-leo-model-select,html.dark .workspace-chat-card .course-leo-compose-input,html.dark .workspace-chat-card .course-leo-attach-option{color:#f4f4f5}html.dark .workspace-chat-card .course-leo-welcome-scope-note,html.dark .workspace-chat-card .course-leo-welcome-visibility-line,html.dark .workspace-chat-card .course-leo-welcome-scope-work-prefix{color:#78716c}html.dark .workspace-chat-card .course-leo-welcome-scope-work-name,html.dark .workspace-chat-card .course-leo-welcome-visibility-trigger{color:#a1a1aa}html.dark .workspace-chat-card .course-leo-welcome-visibility-trigger:hover{color:#d4d4d8}html.dark .workspace-chat-card .course-leo-welcome-visibility-menu{background:#18181bf5;border-color:#3f3f46f2;box-shadow:0 18px 36px #0000006b}html.dark .workspace-chat-card .course-leo-welcome-visibility-option{color:#e4e4e7}html.dark .workspace-chat-card .course-leo-welcome-visibility-option:hover{background:#3f3f468c}html.dark .workspace-chat-card .course-leo-thread-vis-trigger{color:#d4d4d8;background:#27272adb;border-color:#3f3f46f2}html.dark .workspace-chat-card .course-leo-thread-vis-menu{background:#18181bf5;border-color:#3f3f46f2;box-shadow:0 18px 36px #0000006b}html.dark .workspace-chat-card .course-leo-thread-vis-option{color:#e4e4e7}html.dark .workspace-chat-card .course-leo-thread-vis-option:hover{background:#3f3f468c}html.dark .workspace-chat-card .course-leo-thread-feedback,html.dark .workspace-chat-card .course-leo-thread-age,html.dark .workspace-chat-card .course-leo-welcome-copy,html.dark .workspace-chat-card .course-leo-suggested-action-label,html.dark .workspace-chat-card .course-leo-sources-title,html.dark .workspace-chat-card .course-leo-mode-option small,html.dark .workspace-chat-card .course-leo-compose-input::placeholder,html.dark .workspace-chat-card .course-leo-trace-summary.is-static,html.dark .workspace-chat-card .course-leo-trace-item{color:#a1a1aa}html.dark .workspace-chat-card .course-leo-thread-select,html.dark .workspace-chat-card .course-leo-suggested-action-button,html.dark .workspace-chat-card .course-leo-compose-input-row,html.dark .workspace-chat-card .course-leo-attach-trigger,html.dark .workspace-chat-card .course-leo-attach-menu,html.dark .workspace-chat-card .course-leo-model-select,html.dark .workspace-chat-card .course-leo-mode-trigger,html.dark .workspace-chat-card .course-leo-icon-button{background:#27272adb;border-color:#3f3f46e6;box-shadow:0 5px 14px #0000003d}html.dark .workspace-chat-card .course-leo-attach-trigger{box-shadow:none;background:0 0;border-color:#0000}html.dark .workspace-chat-card .course-leo-thread-toggle.course-leo-icon-button{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0}html.dark .workspace-chat-card .course-leo-thread-select.is-active,html.dark .workspace-chat-card .course-leo-mode-option.is-active,html.dark .workspace-chat-card .course-leo-attach-option:hover{background:#3f3f46d1;border-color:#52525bf2}html.dark .workspace-chat-card .course-leo-mode-menu{background:#18181bf5;border-color:#3f3f46e6;box-shadow:0 18px 36px #0000006b}html.dark .workspace-chat-card .course-leo-user-bubble{color:#fafafa;background:#3f3f46}html.dark .workspace-chat-card .course-leo-welcome-eyebrow,html.dark .workspace-chat-card .course-leo-welcome h2,html.dark .workspace-chat-card .course-leo-inline-link,html.dark .workspace-chat-card .course-leo-user-attachment-link,html.dark .workspace-chat-card .course-leo-mode-trigger-brand,html.dark .workspace-chat-card .course-leo-mode-trigger-mode{color:#e4e4e7;background:0 0;-webkit-background-clip:border-box;background-clip:border-box}html.dark .workspace-chat-card .course-leo-inline-link:hover{color:#fafafa}html.dark .workspace-chat-card .course-leo-citation-ref{color:#a1a1aa}html.dark .workspace-chat-card .course-leo-citation-ref:hover{color:#fafafa}html.dark .workspace-chat-card .course-leo-user-attachment-link,html.dark .workspace-chat-card .course-leo-compose-pending-chip{color:#e4e4e7;background:#27272a;border-color:#52525b}html.dark .workspace-chat-card .course-leo-user-attachment-link:hover,html.dark .workspace-chat-card .course-leo-mode-trigger:hover,html.dark .workspace-chat-card .course-leo-attach-trigger:hover,html.dark .workspace-chat-card .course-leo-suggested-action-button:hover,html.dark .workspace-chat-card .course-leo-icon-button:hover{background:#3f3f46}html.dark .workspace-chat-card .course-leo-thread-toggle.course-leo-icon-button:hover{box-shadow:none;background:#3f3f46b8;transform:none}html.dark .workspace-chat-card .course-leo-thread-toggle.course-leo-icon-button:active{box-shadow:none;background:#3f3f46e6;transform:none}html.dark .workspace-chat-card .course-leo-compose-input{background:0 0}html.dark .workspace-chat-card .course-leo-compose-send{color:#18181b;background:#e4e4e7;border-color:#e4e4e7}html.dark .workspace-chat-card .course-leo-compose-send:disabled{color:#71717a;background:#3f3f46;border-color:#52525b}html.dark .workspace-chat-card .course-leo-markdown pre{background:#18181b;border-color:#3f3f46}html.dark .workspace-chat-card .course-leo-markdown :not(pre)>code{color:#f4f4f5;background:#3f3f46d1}html.dark .workspace-chat-card .course-leo-markdown blockquote{color:#d4d4d8;border-left-color:#52525b}.course-leo-corpus-overlay{z-index:40;pointer-events:none;align-items:flex-end;gap:12px;display:flex;position:fixed;bottom:12px;right:12px}.course-leo-corpus-overlay>*{pointer-events:auto}.course-leo-corpus-panel{color:#334155;background:#fffffff5;border:1px solid #e2e8f0;border-radius:12px;flex-direction:column;width:320px;max-height:60vh;font-size:.78rem;display:flex;overflow:hidden;box-shadow:0 12px 24px -16px #0f172a59}.course-leo-corpus-panel.is-collapsed{max-height:40px}html.dark .course-leo-corpus-panel{color:#cbd5f5;background:#0f172af2;border-color:#334155}.course-leo-corpus-panel-header{letter-spacing:.04em;text-transform:uppercase;color:inherit;cursor:pointer;background:0 0;border:none;align-items:center;gap:8px;padding:10px 12px;font-size:.74rem;font-weight:600;display:flex}.course-leo-corpus-panel-count{color:#64748bd9;text-transform:none;letter-spacing:0;margin-left:auto;font-size:.7rem;font-weight:500}.course-leo-corpus-panel-caret{font-size:.8rem}.course-leo-corpus-panel-body{flex-direction:column;gap:8px;padding:0 10px 10px;display:flex;overflow-y:auto}.course-leo-corpus-panel-loading,.course-leo-corpus-panel-error{color:#64748bd9;padding:8px 4px;font-size:.75rem}.course-leo-corpus-panel-error{color:#b91c1c}.course-leo-corpus-panel-search{width:100%;color:inherit;background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:6px 8px;font-size:.78rem}html.dark .course-leo-corpus-panel-search{color:#f1f5f9;background:#0f172a99;border-color:#334155}.course-leo-corpus-tree,.course-leo-corpus-search-results,.course-leo-corpus-folder-children{margin:0;padding:0;list-style:none}.course-leo-corpus-folder-row{cursor:pointer;text-align:left;width:100%;color:inherit;background:0 0;border:none;align-items:center;gap:6px;padding:4px 6px;font-size:.78rem;display:flex}.course-leo-corpus-folder-row:hover{background:#94a3b81f;border-radius:6px}.course-leo-corpus-folder-name{white-space:nowrap;text-overflow:ellipsis;flex:auto;font-weight:500;overflow:hidden}.course-leo-corpus-folder-count{font-variant-numeric:tabular-nums;color:#64748bd9;font-size:.7rem}.course-leo-corpus-folder-tag{text-transform:uppercase;letter-spacing:.04em;color:#4338caf2;background:#6366f11f;border-radius:999px;padding:1px 6px;font-size:.6rem}.course-leo-corpus-folder-tag.is-archived{color:#475569f2;background:#64748b1f}.course-leo-corpus-folder-tag.is-draft{color:#b45309f2;background:#f59e0b1f}.course-leo-corpus-card{align-items:center;gap:4px;padding:2px 6px 2px 22px;display:flex}.course-leo-corpus-card-button{text-align:left;color:inherit;cursor:pointer;background:0 0;border:none;border-radius:6px;flex:auto;align-items:center;gap:6px;min-width:0;padding:3px 6px;font-size:.76rem;display:flex}.course-leo-corpus-card-button:hover{background:#6366f114}.course-leo-corpus-card-name{white-space:nowrap;text-overflow:ellipsis;flex:auto;overflow:hidden}.course-leo-corpus-card-folder{color:#64748bd9;white-space:nowrap;text-overflow:ellipsis;max-width:8rem;font-size:.65rem;overflow:hidden}.course-leo-corpus-card-tag{text-transform:uppercase;letter-spacing:.04em;color:#475569f2;background:#94a3b82e;border-radius:999px;padding:1px 6px;font-size:.6rem}.course-leo-corpus-card-tag.is-current{color:#047857f2;background:#10b98124}.course-leo-corpus-card-tag.is-archived{color:#475569f2;background:#64748b29}.course-leo-corpus-card-tag.is-draft{color:#b45309f2;background:#f59e0b24}.course-leo-corpus-card-tag.is-injection{color:#b91c1cf2;background:#ef444424}.course-leo-corpus-card-open{text-transform:uppercase;letter-spacing:.04em;color:#1e293b;cursor:pointer;background:#fff;border:1px solid #cbd5f5;border-radius:6px;padding:2px 6px;font-size:.62rem}html.dark .course-leo-corpus-card-open{color:#f1f5f9;background:#0f172a99;border-color:#334155}.course-leo-corpus-search-empty{color:#64748bd9;padding:8px 4px;font-size:.74rem}.course-leo-card-popover{color:#1e293b;background:#fff;border:1px solid #e2e8f0;border-radius:12px;flex-direction:column;width:380px;max-height:70vh;font-size:.82rem;display:flex;overflow:hidden;box-shadow:0 24px 48px -24px #0f172a66}html.dark .course-leo-card-popover{color:#f1f5f9;background:#0f172a;border-color:#334155}.course-leo-card-popover-header{border-bottom:1px solid #e2e8f0;align-items:center;gap:8px;padding:10px 12px;display:flex}html.dark .course-leo-card-popover-header{border-bottom-color:#334155}.course-leo-card-popover-title{white-space:nowrap;text-overflow:ellipsis;flex:auto;margin:0;font-size:.92rem;font-weight:600;overflow:hidden}.course-leo-card-popover-close{cursor:pointer;color:inherit;background:0 0;border:none;font-size:1.1rem}.course-leo-card-popover-body{flex-direction:column;gap:10px;padding:12px;display:flex;overflow-y:auto}.course-leo-card-popover-status{color:#64748bf2;font-size:.78rem}.course-leo-card-popover-status.is-error{color:#b91c1c}.course-leo-card-popover-meta{flex-wrap:wrap;gap:6px;margin:0;display:flex}.course-leo-card-popover-meta-item{text-transform:uppercase;letter-spacing:.04em;color:#475569f2;background:#94a3b826;border-radius:999px;padding:2px 8px;font-size:.66rem}.course-leo-card-popover-meta-item.is-current{color:#047857f2;background:#10b98126}.course-leo-card-popover-meta-item.is-archived{color:#475569f2;background:#64748b2e}.course-leo-card-popover-meta-item.is-draft{color:#b45309f2;background:#f59e0b2e}.course-leo-card-popover-purpose{color:#475569f2;margin:0;font-size:.78rem;font-style:italic}html.dark .course-leo-card-popover-purpose{color:#cbd5f5d9}.course-leo-card-popover-summary{margin:0;font-size:.84rem;line-height:1.4}.course-leo-card-popover-section h4{text-transform:uppercase;letter-spacing:.06em;color:#64748bf2;margin:0 0 6px;font-size:.7rem}.course-leo-card-popover-tags{flex-wrap:wrap;gap:4px;margin:0;padding:0;list-style:none;display:flex}.course-leo-card-popover-tag{color:#4338caf2;background:#6366f11f;border-radius:999px;padding:2px 8px;font-size:.7rem}html.dark .course-leo-card-popover-tag{color:#c7d2fef2;background:#818cf82e}.course-leo-card-popover-caveats,.course-leo-card-popover-outline,.course-leo-card-popover-pages{flex-direction:column;gap:4px;margin:0;padding-left:18px;font-size:.78rem;list-style:outside;display:flex}.course-leo-card-popover-outline{padding-left:0;list-style:none}.course-leo-card-popover-outline-button,.course-leo-card-popover-page-button{text-align:left;cursor:pointer;width:100%;color:inherit;font-size:inherit;background:0 0;border:none;border-radius:4px;align-items:baseline;gap:6px;padding:2px 4px;display:flex}.course-leo-card-popover-outline-button:hover:not(:disabled),.course-leo-card-popover-page-button:hover:not(:disabled){background:#94a3b81f}.course-leo-card-popover-outline-button:disabled,.course-leo-card-popover-page-button:disabled{cursor:default;color:#64748bd9}.course-leo-card-popover-outline-heading{white-space:nowrap;text-overflow:ellipsis;flex:auto;overflow:hidden}.course-leo-card-popover-outline-page,.course-leo-card-popover-page-num{font-variant-numeric:tabular-nums;color:#64748bd9;flex:none;font-size:.7rem}.course-leo-card-popover-page-summary{white-space:nowrap;text-overflow:ellipsis;flex:auto;font-size:.74rem;overflow:hidden}.course-leo-card-popover-pages{padding-left:0;list-style:none}.course-leo-card-popover-injection{color:#991b1bf2;background:#ef44441a;border-radius:8px;margin:0;padding:8px 10px;font-size:.76rem;line-height:1.4}html.dark .course-leo-card-popover-injection{color:#fecacaf2;background:#f8717129}.course-leo-card-popover-actions{justify-content:flex-end;margin-top:4px;display:flex}.course-leo-card-popover-open{color:#fff;cursor:pointer;background:#4f46e5;border:none;border-radius:8px;padding:6px 10px;font-size:.78rem;font-weight:600}.course-leo-card-popover-open:hover{background:#4338ca}.course-leo-summary-only-badge{color:#b45309f2;background:#f59e0b1f;border-radius:999px;align-items:center;gap:6px;margin-top:8px;padding:6px 10px;font-size:.74rem;font-weight:600;display:inline-flex}html.dark .course-leo-summary-only-badge{color:#fcd34df2;background:#fcd34d2e}.course-leo-corpus-panel-tabs{border-bottom:1px solid #94a3b82e;gap:4px;padding:6px 12px 0;display:flex}.course-leo-corpus-panel-tab{appearance:none;color:#475569d9;cursor:pointer;background:0 0;border:none;border-radius:6px 6px 0 0;padding:4px 10px;font-size:.72rem;font-weight:600}.course-leo-corpus-panel-tab:disabled{opacity:.5;cursor:not-allowed}.course-leo-corpus-panel-tab.is-active{color:#4338caf2;background:#6366f11f}html.dark .course-leo-corpus-panel-tab{color:#cbd5e1d9}html.dark .course-leo-corpus-panel-tab.is-active{color:#c7d2fef2;background:#818cf82e}.course-leo-corpus-topic-list{flex-direction:column;gap:4px;margin:0;padding:8px 12px 12px;list-style:none;display:flex}.course-leo-corpus-topic{background:#f8fafc99;border:1px solid #94a3b82e;border-radius:6px}html.dark .course-leo-corpus-topic{background:#1e293b66;border-color:#94a3b838}.course-leo-corpus-topic-row{appearance:none;cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:6px;width:100%;padding:6px 8px;display:flex}.course-leo-corpus-topic-title{color:#0f172aeb;flex:1;font-size:.78rem;font-weight:600}html.dark .course-leo-corpus-topic-title{color:#f1f5f9eb}.course-leo-corpus-topic-body{flex-direction:column;gap:6px;padding:0 10px 10px;display:flex}.course-leo-corpus-topic-summary{color:#475569f2;margin:0;font-size:.72rem;line-height:1.4}html.dark .course-leo-corpus-topic-summary{color:#cbd5e1eb}.course-leo-corpus-topic-terms{flex-wrap:wrap;gap:4px;display:flex}.course-leo-corpus-topic-term{color:#4338caf2;background:#6366f11a;border-radius:999px;padding:1px 6px;font-size:.66rem}html.dark .course-leo-corpus-topic-term{color:#c7d2fef2;background:#818cf82e}.course-leo-corpus-topic-docs{flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex}.course-leo-card-popover-relationships{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.course-leo-card-popover-relationship-button{appearance:none;cursor:pointer;text-align:left;background:#f8fafc99;border:1px solid #94a3b82e;border-radius:6px;align-items:center;gap:6px;width:100%;padding:6px 10px;font-size:.74rem;display:flex}.course-leo-card-popover-relationship-button:disabled{cursor:default;opacity:.85}.course-leo-card-popover-relationship-verb{color:#4338caf2;text-transform:lowercase;font-weight:600}.course-leo-card-popover-relationship-target{color:#0f172aeb;flex:1}.course-leo-card-popover-relationship-confidence{color:#475569d9;font-variant-numeric:tabular-nums;font-size:.64rem}.course-leo-card-popover-relationship.is-supersedes .course-leo-card-popover-relationship-verb{color:#b45309f2}.course-leo-card-popover-relationship.is-contradicts .course-leo-card-popover-relationship-verb{color:#dc2626f2}.course-leo-card-popover-relationship.is-duplicates .course-leo-card-popover-relationship-verb{color:#64748bf2}html.dark .course-leo-card-popover-relationship-button{background:#1e293b66;border-color:#94a3b838}html.dark .course-leo-card-popover-relationship-target{color:#f1f5f9eb}html.dark .course-leo-card-popover-relationship-verb{color:#c7d2fef2}.course-leo-chat-page.is-empty-chat,.workspace-chat-card .course-leo-chat-page.is-empty-chat,html.dark .course-leo-chat-page.is-empty-chat,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat{background:var(--leo-paper);color:var(--leo-ink);position:relative}.course-leo-chat-page.is-empty-chat:before{content:"";z-index:0;pointer-events:none;background-image:repeating-linear-gradient(0deg, color-mix(in srgb, var(--leo-accent) 26%, transparent) 0 1px, transparent 1px 32px), repeating-linear-gradient(90deg, color-mix(in srgb, var(--leo-accent) 26%, transparent) 0 1px, transparent 1px 32px);position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%);mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%)}.course-leo-chat-page.is-empty-chat:after{content:"";z-index:0;pointer-events:none;background-image:repeating-linear-gradient(0deg, color-mix(in srgb, var(--leo-accent) 18%, transparent) 0 1px, transparent 1px 8px), repeating-linear-gradient(90deg, color-mix(in srgb, var(--leo-accent) 18%, transparent) 0 1px, transparent 1px 8px);opacity:.45;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%);mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%)}.course-leo-chat-page.is-empty-chat .course-leo-chat-layout,.course-leo-chat-page.is-empty-chat .course-leo-chat-main{z-index:1;position:relative}.course-leo-chat-page.is-empty-chat .course-leo-chat-main{flex-direction:column;justify-content:center;align-items:center;display:flex;overflow-y:auto}.course-leo-chat-page.is-empty-chat .course-leo-chat-stream,.course-leo-chat-page.is-empty-chat .course-leo-chat-stream.is-empty,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-chat-stream,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-chat-stream{background:0 0;flex:none;grid-template-rows:1fr;justify-items:center;width:100%;height:auto;padding:12px 24px 0;transition:grid-template-rows .35s cubic-bezier(.4,0,.2,1);display:grid;overflow:visible}.course-leo-chat-page.is-empty-chat .course-leo-chat-stream>.leo-scholar-welcome{width:100%;min-height:0;overflow:hidden}.course-leo-chat-page.is-empty-chat .course-leo-input-dock{z-index:auto;pointer-events:auto;background:0 0;flex-direction:column;align-items:center;width:min(780px,100%);margin-top:22px;padding:0 24px;display:flex;position:static}.course-leo-chat-page.is-empty-chat .course-leo-input-dock:before,html.dark .course-leo-chat-page.is-empty-chat .course-leo-input-dock:before{display:none}.leo-scholar-welcome{gap:10px;margin-top:0}.leo-scholar-datepill{font-family:var(--leo-font-hand);letter-spacing:.01em;color:var(--leo-accent);font-size:1.18rem;font-weight:700}.leo-scholar-greeting{font-family:var(--leo-font-serif);letter-spacing:-.015em;color:var(--leo-ink-heading);margin:0;font-size:clamp(2.15rem,4.4vw,3.2rem);font-weight:600;line-height:1.04}.leo-scholar-subhead{font-family:var(--leo-font-hand);color:var(--leo-ink-soft);margin:0;font-size:1.5rem;font-weight:400;line-height:1.2}.course-leo-chat-page.is-empty-chat .course-leo-compose-shell{order:1;width:min(780px,100%)}.course-leo-chat-page.is-empty-chat .course-leo-compose-input-row,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input-row,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input-row{background:var(--leo-surface);border:1px solid color-mix(in srgb, var(--leo-accent) 18%, transparent);box-shadow:0 2px 10px var(--leo-surface-shadow);border-radius:14px;align-items:flex-end;gap:12px;padding:12px 16px;transition:border-color .15s,flex .13s cubic-bezier(.4,0,.2,1),min-height .13s cubic-bezier(.4,0,.2,1);display:flex}.course-leo-chat-page.is-empty-chat .course-leo-compose-input-row:hover,.course-leo-chat-page.is-empty-chat .course-leo-compose-input-row:focus-within,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input-row:hover,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input-row:focus-within,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input-row:hover,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input-row:focus-within{border-color:color-mix(in srgb, var(--leo-accent) 48%, transparent)}.course-leo-chat-page.is-empty-chat .course-leo-compose-input,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-input{width:auto;color:var(--leo-ink);box-sizing:border-box;background:0 0;flex:auto;min-height:44px;padding:10px 0;font-size:1.02rem;line-height:1.375}.course-leo-chat-page.is-empty-chat .course-leo-compose-input::placeholder{color:var(--leo-ink-soft)}.course-leo-chat-page.is-empty-chat .course-leo-compose-actions{flex-shrink:0;gap:12px}.course-leo-chat-page.is-empty-chat .course-leo-compose-model{min-height:42px;color:var(--leo-ink-soft);white-space:nowrap;align-items:center;font-size:.82rem;font-weight:500;line-height:1;display:inline-flex}.course-leo-chat-page.is-empty-chat .course-leo-compose-send,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-send,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-compose-send{border:0;border-color:var(--leo-accent);background:var(--leo-accent);width:42px;height:42px;color:var(--leo-accent-fg);box-shadow:0 2px 8px #14141a2e}.course-leo-chat-page.is-empty-chat .course-leo-compose-send:disabled{background:color-mix(in srgb, var(--leo-accent) 32%, transparent);color:var(--leo-accent-fg);box-shadow:none;border:0}.course-leo-chat-page.is-empty-chat .course-leo-compose-send-icon{width:28px;height:28px}.course-leo-chat-page.is-empty-chat .course-leo-attach-menu-wrap{display:block}.course-leo-chat-page.is-empty-chat .course-leo-attach-trigger,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-attach-trigger,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-attach-trigger{width:42px;height:42px;color:var(--leo-ink-soft);box-shadow:none;background:0 0;border:0}.course-leo-chat-page.is-empty-chat .course-leo-attach-trigger:hover,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-attach-trigger:hover,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-attach-trigger:hover{background:color-mix(in srgb, var(--leo-ink-soft) 10%, transparent);color:var(--leo-ink)}.course-leo-chat-page.is-empty-chat .course-leo-document-suggestions{order:2;grid-template-rows:1fr;align-self:center;width:80%;max-width:min(720px,100%);margin-top:12px;transition:grid-template-rows .3s,opacity .3s,margin .3s;display:grid}.course-leo-chat-page.is-empty-chat .course-leo-document-suggestions-grid{min-height:0;overflow:hidden}.course-leo-document-suggestions-grid{grid-template-columns:repeat(auto-fit,minmax(128px,1fr));gap:6px;display:grid}.course-leo-document-suggestion-btn{border:1px solid color-mix(in srgb, var(--leo-accent) 18%, transparent);background:var(--leo-surface);min-width:0;box-shadow:0 2px 8px var(--leo-surface-shadow);text-align:left;cursor:pointer;border-radius:10px;flex-direction:column;justify-content:center;align-items:flex-start;gap:1px;min-height:38px;padding:8px 10px;transition:border-color .14s,background-color .14s,box-shadow .14s;display:flex}.course-leo-document-suggestion-btn:hover,.course-leo-document-suggestion-btn:focus-visible{border-color:color-mix(in srgb, var(--leo-accent) 48%, transparent);background:color-mix(in srgb, var(--leo-accent) 7%, var(--leo-surface))}.course-leo-document-suggestion-btn:disabled{cursor:wait;opacity:.65}.course-leo-document-suggestion-name{text-overflow:ellipsis;white-space:nowrap;width:100%;color:var(--leo-ink);font-family:var(--leo-font-sans,ui-sans-serif, system-ui, sans-serif);font-size:.8125rem;font-weight:500;line-height:1.25;display:block;overflow:hidden}.course-leo-document-suggestion-file-type{text-overflow:ellipsis;white-space:nowrap;width:100%;color:var(--leo-accent);font-size:.6875rem;font-weight:500;line-height:1.25;display:block;overflow:hidden}.course-leo-document-picker-btn{flex-direction:row;justify-content:center;align-items:center;gap:4px;padding:8px 10px}.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card{border:1px solid color-mix(in srgb, var(--leo-accent) 18%, transparent);background:var(--leo-surface);box-shadow:0 2px 10px var(--leo-surface-shadow);text-align:left;border-radius:14px;padding:12px;transition:border-color .15s,background-color .15s}.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card:hover,.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card:focus-visible,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card:hover,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card:focus-visible,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card:hover,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-card:focus-visible{border-color:color-mix(in srgb, var(--leo-accent) 48%, transparent);background:color-mix(in srgb, var(--leo-accent) 7%, var(--leo-surface));transform:none}.course-leo-chat-page.is-empty-chat .course-leo-document-picker-card{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:6px;min-height:112px;display:flex}.course-leo-document-picker-plus{color:var(--leo-accent);justify-content:center;align-items:center;font-size:1.1rem;font-weight:400;line-height:1;display:inline-flex}.course-leo-document-picker-label{font-family:var(--leo-font-sans,ui-sans-serif, system-ui, sans-serif);color:var(--leo-ink);font-size:.8125rem;font-weight:500}.course-leo-document-picker-list{flex-direction:column;gap:6px;padding:4px 0 8px;display:flex}.course-leo-document-picker-suggestions{grid-template-columns:repeat(auto-fit,minmax(128px,1fr));gap:6px;margin-bottom:4px;padding-bottom:10px;display:grid}.course-leo-document-picker-suggestions:has(+.course-leo-document-picker-list){border-bottom:1px solid color-mix(in srgb, var(--leo-ink) 10%, transparent)}.course-leo-document-picker-list .course-leo-document-suggestion-btn{width:100%}.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-primary,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-primary,html.dark .workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-primary{display:none}.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-title,.workspace-chat-card .course-leo-chat-page.is-empty-chat .course-leo-welcome-document-title{color:var(--leo-ink-heading)}.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-kind,.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-subtitle,.course-leo-chat-page.is-empty-chat .course-leo-welcome-document-meta,.notebook-canvas-paper .course-leo-welcome-scope-note,.notebook-canvas-paper .course-leo-welcome-visibility-line,.notebook-canvas-paper .course-leo-welcome-scope-work-prefix{color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-welcome-scope-work-name{color:var(--leo-ink-heading)}.notebook-canvas-paper .course-leo-welcome-visibility-trigger{color:var(--leo-accent)}@media (prefers-reduced-motion:reduce){.course-leo-welcome-document-card,.course-leo-document-suggestion-btn{transition:none}}.course-leo-suggested-actions.is-chip-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 14px;width:min(720px,100%);margin:18px auto 0;display:flex}.course-leo-suggested-action-chip{color:var(--leo-ink);font-family:var(--leo-font-serif);cursor:pointer;background:0 0;border:0;border-radius:10px;align-items:center;gap:8px;padding:7px 12px;font-size:.96rem;font-weight:500;line-height:1.1;transition:color .14s,background-color .14s;display:inline-flex}.course-leo-suggested-action-chip:hover{color:var(--leo-accent);background:var(--leo-accent-soft)}.course-leo-suggested-action-chip:focus-visible{outline:2px solid var(--leo-accent);outline-offset:2px}.course-leo-suggested-action-chip .course-leo-suggested-action-title{font:inherit;color:inherit}.course-leo-suggested-action-icon{width:16px;height:16px;color:var(--leo-ink-soft);flex:none;transition:color .14s}.course-leo-suggested-action-chip:hover .course-leo-suggested-action-icon{color:var(--leo-accent)}.course-leo-empty-eyebrow{z-index:14;letter-spacing:.01em;color:var(--leo-ink-soft);pointer-events:none;font-size:.84rem;font-weight:500;position:absolute;top:20px;left:48px}.course-leo-empty-scope{z-index:14;text-align:left;pointer-events:auto;gap:2px;max-width:min(440px,100% - 120px);margin-top:0;display:grid;position:absolute;top:20px;left:48px}.notebook-canvas-paper .course-leo-empty-scope .course-leo-welcome-visibility,.workspace-chat-card .course-leo-empty-scope .course-leo-welcome-visibility{justify-items:start}.notebook-canvas-paper .course-leo-empty-scope .course-leo-welcome-visibility-menu,.workspace-chat-card .course-leo-empty-scope .course-leo-welcome-visibility-menu{width:max-content;min-width:0;max-width:min(280px,100dvw - 5.25rem - 56px);left:0;transform:none}.course-leo-chat-page.is-empty-chat .course-leo-thread-sidebar{background:0 0;border-color:#0000}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-icon-button,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-icon-button,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-icon-button{border:1px solid color-mix(in srgb, var(--leo-accent) 18%, transparent);background:var(--leo-surface);-webkit-backdrop-filter:none;backdrop-filter:none;width:38px;height:38px;box-shadow:0 2px 10px var(--leo-surface-shadow);color:var(--leo-ink-soft);border-radius:12px;transition:border-color .15s,background-color .15s,color .15s}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-icon-button:hover,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-icon-button:hover,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-icon-button:hover{border-color:color-mix(in srgb, var(--leo-accent) 48%, transparent);background:color-mix(in srgb, var(--leo-accent) 7%, var(--leo-surface));color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-icon-button:focus-visible,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-icon-button:focus-visible,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-icon-button:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 48%, transparent);outline-offset:2px}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-icon-button-icon{stroke-width:2px;color:currentColor;width:18px;height:18px}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-icon-button-help{font-family:var(--leo-font-serif);color:currentColor;font-size:1.1rem;font-weight:600}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-trigger,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-trigger,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-trigger{border:1px solid color-mix(in srgb, var(--leo-accent) 18%, transparent);background:var(--leo-surface);-webkit-backdrop-filter:none;backdrop-filter:none;height:38px;box-shadow:0 2px 10px var(--leo-surface-shadow);color:var(--leo-ink);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;letter-spacing:.01em;border-radius:12px;gap:6px;padding:0 12px;font-size:.86rem;font-weight:600;transition:border-color .15s,background-color .15s,color .15s}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-trigger:hover,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-trigger:hover,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-trigger:hover{border-color:color-mix(in srgb, var(--leo-accent) 48%, transparent);background:color-mix(in srgb, var(--leo-accent) 7%, var(--leo-surface))}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-trigger:focus-visible,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-trigger:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 48%, transparent);outline-offset:2px}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-trigger-brand{color:var(--leo-accent);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;background-image:none;-webkit-background-clip:unset;background-clip:unset}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-trigger-mode{color:var(--leo-ink-soft);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;font-weight:500}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-caret{opacity:1;width:15px;height:15px;color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu{border:1px solid color-mix(in srgb, var(--leo-accent) 22%, transparent);background:var(--leo-surface);-webkit-backdrop-filter:none;backdrop-filter:none;width:min(300px,100vw - 32px);box-shadow:0 8px 24px var(--leo-surface-shadow);border-radius:14px;gap:4px;padding:6px}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option{color:var(--leo-ink);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;background:0 0;border:1px solid #0000;border-radius:10px;transition:border-color .15s,background-color .15s}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option span{color:var(--leo-ink);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;font-weight:600}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option small{color:var(--leo-ink-soft);font-family:var(--font-geist-sans), var(--font-geist-mono), sans-serif}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option:hover,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option:hover,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option:hover{border:1px solid color-mix(in srgb, var(--leo-accent) 42%, transparent);background:color-mix(in srgb, var(--leo-accent) 7%, var(--leo-surface))}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option.is-active,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option.is-active,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option.is-active{border:1px solid color-mix(in srgb, var(--leo-accent) 68%, transparent);background:color-mix(in srgb, var(--leo-accent) 9%, var(--leo-surface))}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option.is-active:hover,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option.is-active:hover,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option.is-active:hover{border-color:color-mix(in srgb, var(--leo-accent) 68%, transparent)}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-option:focus-visible,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-option:focus-visible{outline:2px solid color-mix(in srgb, var(--leo-accent) 48%, transparent);outline-offset:1px}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu-footer,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu-footer{border-top-color:color-mix(in srgb, var(--leo-accent) 18%, transparent)}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-scope-work-prefix,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-scope-work-prefix,.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-visibility-line,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-visibility-line{color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-scope-work-name,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-scope-work-name,.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-visibility-trigger,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-visibility-trigger{color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-visibility-menu,.notebook-canvas-paper .workspace-chat-card .course-leo-chat-floating-actions .course-leo-mode-menu-scope .course-leo-welcome-visibility-menu{border-color:color-mix(in srgb, var(--leo-accent) 22%, transparent);background:var(--leo-surface);box-shadow:0 8px 24px var(--leo-surface-shadow)}.notebook-canvas-paper .course-leo-chat-page.is-empty-chat .course-leo-chat-floating-actions .course-leo-mode-selector,.notebook-canvas-paper .course-leo-chat-page.is-empty-chat .course-leo-chat-floating-actions .course-leo-model-select-wrap{display:none}.notebook-canvas-paper{background:var(--leo-paper)}.notebook-canvas-paper:before{content:"";z-index:0;pointer-events:none;background-image:repeating-linear-gradient(0deg, color-mix(in srgb, var(--leo-accent) 26%, transparent) 0 1px, transparent 1px 32px), repeating-linear-gradient(90deg, color-mix(in srgb, var(--leo-accent) 26%, transparent) 0 1px, transparent 1px 32px);transition:opacity .65s;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%);mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%)}.notebook-canvas-paper:after{content:"";z-index:0;pointer-events:none;background-image:repeating-linear-gradient(0deg, color-mix(in srgb, var(--leo-accent) 18%, transparent) 0 1px, transparent 1px 8px), repeating-linear-gradient(90deg, color-mix(in srgb, var(--leo-accent) 18%, transparent) 0 1px, transparent 1px 8px);opacity:.45;transition:opacity .65s;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%);mask-image:radial-gradient(70% 142% at 51% 56%,#00000047 0% 50%,#000 86%)}.notebook-canvas-paper.is-chatting:before,.notebook-canvas-paper.is-chatting:after{opacity:0}.notebook-canvas-paper.is-empty:before{opacity:.55}.notebook-canvas-paper.is-empty:after{opacity:.25}.notebook-canvas-paper.is-split:before,.notebook-canvas-paper.is-split:after{display:none}.notebook-canvas-paper.is-split .workspace-chat-card{position:relative}.notebook-canvas-paper.is-split .workspace-chat-card>.course-leo-chat-page{z-index:1;position:relative}.notebook-canvas-paper.is-split .workspace-chat-card:before,.notebook-canvas-paper.is-split .workspace-chat-card:after{content:"";z-index:0;pointer-events:none;transition:opacity .65s;position:absolute;inset:0}.notebook-canvas-paper.is-split .workspace-chat-card:before{background-image:repeating-linear-gradient(0deg, color-mix(in srgb, var(--leo-accent) 26%, transparent) 0 1px, transparent 1px 32px), repeating-linear-gradient(90deg, color-mix(in srgb, var(--leo-accent) 26%, transparent) 0 1px, transparent 1px 32px);-webkit-mask-image:radial-gradient(70% 142% at 50% 56%,#00000047 0% 50%,#000 86%);mask-image:radial-gradient(70% 142% at 50% 56%,#00000047 0% 50%,#000 86%)}.notebook-canvas-paper.is-split .workspace-chat-card:after{background-image:repeating-linear-gradient(0deg, color-mix(in srgb, var(--leo-accent) 18%, transparent) 0 1px, transparent 1px 8px), repeating-linear-gradient(90deg, color-mix(in srgb, var(--leo-accent) 18%, transparent) 0 1px, transparent 1px 8px);-webkit-mask-image:radial-gradient(70% 142% at 50% 56%,#00000047 0% 50%,#000 86%);mask-image:radial-gradient(70% 142% at 50% 56%,#00000047 0% 50%,#000 86%)}.notebook-canvas-paper.is-split.is-empty .workspace-chat-card:before{opacity:.55}.notebook-canvas-paper.is-split.is-empty .workspace-chat-card:after{opacity:.25}.notebook-canvas-paper.is-split.is-chatting .workspace-chat-card:before,.notebook-canvas-paper.is-split.is-chatting .workspace-chat-card:after{opacity:0}.notebook-canvas-paper.is-chatting .course-leo-input-dock{animation:.48s cubic-bezier(.22,1,.36,1) both leo-dock-settle}.notebook-canvas-paper.is-chatting .course-leo-message-list{animation:.52s cubic-bezier(.22,1,.36,1) both leo-messages-rise}@keyframes leo-dock-settle{0%{opacity:0;transform:translateY(-26px)}to{opacity:1;transform:translateY(0)}}@keyframes leo-messages-rise{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.notebook-canvas-paper.is-chatting .course-leo-input-dock,.notebook-canvas-paper.is-chatting .course-leo-message-list{animation:none}}.course-leo-chat-page.is-empty-refreshing .course-leo-chat-main{animation:.42s cubic-bezier(.22,1,.36,1) both leo-empty-refresh-pulse}.course-leo-chat-page.is-empty-refreshing .leo-scholar-welcome{animation:.48s cubic-bezier(.22,1,.36,1) both leo-welcome-enter}.course-leo-chat-page.is-empty-refreshing .course-leo-input-dock{animation:.42s cubic-bezier(.22,1,.36,1) both leo-empty-refresh-dock}.notebook-canvas-paper.is-empty.is-empty-refreshing:before,.notebook-canvas-paper.is-empty.is-empty-refreshing:after{animation:.52s cubic-bezier(.22,1,.36,1) both leo-canvas-grid-refresh}.notebook-canvas-paper.is-empty.is-empty-refreshing:after{animation-name:leo-canvas-grid-refresh-fine}@keyframes leo-empty-refresh-pulse{0%{opacity:1;transform:scale(1)}38%{opacity:.62;transform:scale(.992)}to{opacity:1;transform:scale(1)}}@keyframes leo-welcome-enter{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes leo-empty-refresh-dock{0%{opacity:1;transform:translateY(0)}40%{opacity:.7;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes leo-canvas-grid-refresh{0%{opacity:.55}45%{opacity:.38}to{opacity:.55}}@keyframes leo-canvas-grid-refresh-fine{0%{opacity:.25}45%{opacity:.14}to{opacity:.25}}@media (prefers-reduced-motion:reduce){.course-leo-chat-page.is-empty-refreshing .course-leo-chat-main,.course-leo-chat-page.is-empty-refreshing .leo-scholar-welcome,.course-leo-chat-page.is-empty-refreshing .course-leo-input-dock,.notebook-canvas-paper.is-empty.is-empty-refreshing:before,.notebook-canvas-paper.is-empty.is-empty-refreshing:after{animation:none}}.notebook-canvas-paper .workspace-chat-card .course-leo-chat-page.is-empty-chat,html.dark .notebook-canvas-paper .workspace-chat-card .course-leo-chat-page.is-empty-chat{background:0 0}.notebook-canvas-paper .course-leo-chat-page.is-empty-chat:before,.notebook-canvas-paper .course-leo-chat-page.is-empty-chat:after{display:none}.leo-history-portal{z-index:65;pointer-events:none;position:absolute;inset:0}.course-leo-history-flyout{z-index:65;align-items:stretch;width:14px;display:flex;position:absolute;top:0;bottom:0;left:0}.course-leo-history-flyout.is-secondary{pointer-events:none}.course-leo-history-handle{pointer-events:auto;opacity:.6;justify-content:center;align-items:center;width:100%;transition:opacity .16s,background-color .16s;display:flex}.course-leo-history-handle:hover{opacity:1;background:color-mix(in srgb, var(--leo-accent) 10%, transparent)}.course-leo-history-handle-grip{background:color-mix(in srgb, var(--leo-ink) 28%, transparent);border-radius:999px;width:3px;height:38px}.course-leo-history-panel{background:var(--leo-paper-edge);border-right:1px solid color-mix(in srgb, var(--leo-ink) 14%, transparent);opacity:0;pointer-events:none;grid-template-rows:auto minmax(0,1fr);width:min(320px,82vw);transition:transform .24s cubic-bezier(.22,1,.36,1),opacity .18s;display:grid;position:absolute;top:0;bottom:0;left:0;transform:translate(-102%);box-shadow:18px 0 38px -24px #00000073}.course-leo-history-panel:before{content:"";width:28px;position:absolute;top:0;bottom:0;left:-28px}.course-leo-history-flyout:not(.is-secondary):hover .course-leo-history-panel,.course-leo-history-flyout:not(.is-secondary):focus-within .course-leo-history-panel,.workspace-rail:hover~.workspace-content:not(.is-secondary-history) .course-leo-history-panel,.course-leo-history-flyout.is-secondary.is-open .course-leo-history-panel{opacity:1;pointer-events:auto;transform:translate(0)}.course-leo-history-scrim{z-index:60;opacity:0;pointer-events:none;background:#0f0a0452;transition:opacity .22s;position:absolute;inset:0}.course-leo-history-flyout:not(.is-secondary):hover~.course-leo-history-scrim,.course-leo-history-flyout:not(.is-secondary):focus-within~.course-leo-history-scrim,.workspace-rail:hover~.workspace-content:not(.is-secondary-history) .course-leo-history-scrim,.course-leo-history-flyout.is-secondary.is-open~.course-leo-history-scrim{opacity:1}.course-leo-history-flyout.is-dismissed .course-leo-history-panel{opacity:0!important;pointer-events:none!important;transform:translate(-102%)!important}.course-leo-history-flyout.is-dismissed~.course-leo-history-scrim{opacity:0!important;pointer-events:none!important}.course-leo-chat-skeleton{flex-direction:column;gap:22px;width:100%;padding:12px 0 4px;display:flex}.course-leo-skeleton-msg{flex-direction:column;gap:9px;max-width:100%;display:flex}.course-leo-skeleton-msg.is-user{align-items:flex-end}.course-leo-skeleton-msg.is-leo{align-items:flex-start}.course-leo-skeleton-msg span{background:linear-gradient(90deg, color-mix(in srgb, var(--leo-ink) 7%, transparent) 25%, color-mix(in srgb, var(--leo-ink) 15%, transparent) 37%, color-mix(in srgb, var(--leo-ink) 7%, transparent) 63%);background-size:400% 100%;border-radius:8px;height:14px;animation:1.4s infinite leo-skeleton-shimmer;display:block}.course-leo-skeleton-msg.is-user span{width:min(58%,320px)}.course-leo-skeleton-msg.is-leo span{width:100%}.course-leo-skeleton-msg.is-leo span:nth-child(2){width:94%}.course-leo-skeleton-msg.is-leo span:last-child{width:68%}@keyframes leo-skeleton-shimmer{0%{background-position:100% 0}to{background-position:0 0}}@media (prefers-reduced-motion:reduce){.course-leo-skeleton-msg span{animation:none}}.course-leo-history-head{border-bottom:1px solid color-mix(in srgb, var(--leo-ink) 10%, transparent);align-items:center;gap:10px;padding:18px 18px 12px;display:flex}.course-leo-history-title-heading{min-width:0;font-family:var(--leo-font-serif);letter-spacing:-.01em;color:var(--leo-ink);flex:auto;margin:0;font-size:1.2rem;font-weight:600}.course-leo-history-new{border:1px solid color-mix(in srgb, var(--leo-accent) 45%, transparent);background:var(--leo-accent-soft);width:32px;height:32px;color:var(--leo-accent);cursor:pointer;border-radius:10px;flex-shrink:0;place-items:center;transition:background-color .15s,filter .15s;display:grid}.course-leo-history-new:hover:not(:disabled){background:var(--leo-accent);color:var(--leo-accent-fg)}.course-leo-history-new:disabled{opacity:.5;cursor:not-allowed}.course-leo-history-new-icon{width:16px;height:16px}.course-leo-history-feedback{color:var(--leo-ink-soft);font-family:var(--leo-font-serif);margin:10px 18px 0;font-size:.85rem;line-height:1.4}.course-leo-history-feedback.is-error{color:#c0564f}.course-leo-history-select-skeleton{pointer-events:none}.course-leo-history-skeleton-line{background:linear-gradient(90deg, color-mix(in srgb, var(--leo-ink) 7%, transparent) 25%, color-mix(in srgb, var(--leo-ink) 15%, transparent) 37%, color-mix(in srgb, var(--leo-ink) 7%, transparent) 63%);background-size:400% 100%;border-radius:999px;height:10px;animation:1.4s infinite leo-skeleton-shimmer;display:block}.course-leo-history-skeleton-line.is-title{width:min(86%,220px);height:12px}.course-leo-history-skeleton-line.is-badge{width:min(42%,130px);height:9px;margin-top:2px}.course-leo-history-skeleton-line.is-age{justify-self:end;width:34px;height:9px}.course-leo-history-list{-ms-overflow-style:none;scrollbar-width:none;overscroll-behavior:contain;align-content:start;gap:4px;min-height:0;margin:0;padding:10px 12px 16px;list-style:none;display:grid;overflow-y:auto}.course-leo-history-list::-webkit-scrollbar{display:none}.course-leo-history-item{position:relative}.course-leo-history-select{width:100%;color:var(--leo-ink);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:11px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;min-height:46px;padding:8px 12px;transition:background-color .15s,border-color .15s;display:grid}.course-leo-history-select:hover:not(:disabled){background:color-mix(in srgb, var(--leo-ink) 6%, transparent)}.course-leo-history-select.is-active{border-color:color-mix(in srgb, var(--leo-accent) 45%, transparent);background:var(--leo-accent-soft)}.course-leo-history-select:disabled{opacity:.6;cursor:default}.course-leo-history-select.has-notebook-visibility{grid-template-columns:auto minmax(0,1fr) auto;gap:10px;padding-left:10px}.course-leo-history-select .course-leo-thread-vis{align-self:center}.course-leo-history-select .course-leo-thread-vis-trigger{border-color:color-mix(in srgb, var(--leo-ink) 16%, transparent);background:color-mix(in srgb, var(--leo-ink) 4%, transparent);width:28px;height:28px;color:var(--leo-ink-soft);transition:background-color .15s,border-color .15s,color .15s}.course-leo-history-select .course-leo-thread-vis-trigger svg{width:15px;height:15px}.course-leo-history-select .course-leo-thread-vis-trigger:hover:not(:disabled){border-color:color-mix(in srgb, var(--leo-accent) 45%, transparent);background:var(--leo-accent-soft);color:var(--leo-accent)}.course-leo-history-item-main{flex-direction:column;align-self:center;gap:3px;min-width:0;display:flex}.course-leo-history-item-title{text-overflow:ellipsis;white-space:nowrap;font-family:var(--leo-font-serif);letter-spacing:-.005em;color:var(--leo-ink);font-size:.92rem;font-weight:550;line-height:1.35;overflow:hidden}.course-leo-history-badge{border:1px solid color-mix(in srgb, var(--leo-accent) 35%, transparent);background:var(--leo-accent-soft);width:fit-content;max-width:min(100%,200px);color:var(--leo-accent);letter-spacing:.03em;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;border-radius:7px;align-items:center;margin-top:2px;padding:3px 7px;font-size:.62rem;font-weight:700;line-height:1;display:inline-flex;overflow:hidden}.course-leo-history-age{color:var(--leo-ink-soft);letter-spacing:.02em;font-variant-numeric:tabular-nums;text-align:right;place-self:center end;min-width:28px;font-size:.68rem;font-weight:600;transition:opacity .14s}.course-leo-history-delete{color:#b1554e;cursor:pointer;opacity:0;pointer-events:none;background:0 0;border:1px solid #0000;border-radius:999px;place-items:center;width:30px;height:30px;min-height:30px;padding:0;transition:opacity .15s,background-color .16s,border-color .16s;display:grid;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.course-leo-history-delete-icon{flex-shrink:0;width:15px;height:15px}.course-leo-history-item:hover .course-leo-history-delete,.course-leo-history-item:focus-within .course-leo-history-delete{opacity:1;pointer-events:auto}.course-leo-history-item:hover .course-leo-history-age,.course-leo-history-item:focus-within .course-leo-history-age{opacity:0}.course-leo-history-delete:hover:not(:disabled){background:#b1554e24;border-color:#b1554e59}.course-leo-history-delete.is-busy .course-leo-history-delete-icon{opacity:.45;animation:.85s ease-in-out infinite course-leo-thread-delete-pulse}.course-leo-history-delete:disabled{pointer-events:none;cursor:default}.course-leo-history-delete:disabled .course-leo-history-delete-icon{animation:none}@media (prefers-reduced-motion:reduce){.course-leo-history-panel,.course-leo-history-scrim,.course-leo-history-new,.course-leo-history-select{transition:none}.course-leo-history-skeleton-line{animation:none}}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-response,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown{color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown p,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown li,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown blockquote{font-family:var(--leo-font-serif);color:var(--leo-ink);font-size:1.03rem;line-height:1.72}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown h1,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown h2,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown h3,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown h4{font-family:var(--leo-font-serif);letter-spacing:-.01em;color:var(--leo-ink-heading);font-weight:600}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown strong{color:var(--leo-ink);font-weight:700}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown a,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-inline-link{color:var(--leo-accent);-webkit-text-decoration-color:color-mix(in srgb, var(--leo-accent) 45%, transparent);text-decoration-color:color-mix(in srgb, var(--leo-accent) 45%, transparent)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-inline-link:hover{color:color-mix(in srgb, var(--leo-accent) 80%, var(--leo-ink))}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-inline-code,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown :not(pre)>code{font-family:var(--font-geist-mono), ui-monospace, "SFMono-Regular", monospace;background:color-mix(in srgb, var(--leo-ink) 8%, transparent);color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-code-block{background:var(--leo-surface);border-radius:12px}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-markdown blockquote{border-left:3px solid color-mix(in srgb, var(--leo-accent) 55%, transparent);color:var(--leo-ink-soft);padding-left:14px;font-style:italic}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-user-bubble{background:var(--leo-surface);color:var(--leo-ink);border:1.5px solid color-mix(in srgb, var(--leo-accent) 38%, transparent);box-shadow:0 2px 12px var(--leo-surface-shadow);border-radius:16px 16px 5px;padding:14px 18px 10px}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-user-bubble p{font-family:var(--leo-font-serif);color:var(--leo-ink);font-size:1rem;line-height:1.62}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-sources-title{font-family:var(--leo-font-serif);color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-source-pill{border:1px solid color-mix(in srgb, var(--leo-ink) 12%, transparent);background:color-mix(in srgb, var(--leo-ink) 4%, var(--leo-surface));color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) a.course-leo-source-pill:hover,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) button.course-leo-source-pill:hover{border-color:color-mix(in srgb, var(--leo-ink) 20%, transparent);background:color-mix(in srgb, var(--leo-ink) 7%, var(--leo-surface));color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-citation-ref{color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-citation-ref:hover{color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-source-pill-num{background:color-mix(in srgb, var(--leo-ink) 12%, transparent);color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-scope-chip{border-color:color-mix(in srgb, var(--leo-ink) 18%, transparent);background:color-mix(in srgb, var(--leo-ink) 5%, transparent);color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-trace-summary,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-trace-item-label,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-trace-summary-caret{color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-trace-doc-link{color:var(--leo-ink)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-input-dock:before{background:linear-gradient(180deg, color-mix(in srgb, var(--leo-paper) 0%, transparent) 0%, color-mix(in srgb, var(--leo-paper) 96%, transparent) 36%, var(--leo-paper) 100%)}.notebook-canvas-paper.is-chatting{--leo-disclaimer-band:24px}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-input-dock{padding-bottom:var(--leo-disclaimer-band)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-compose-input-row{background:var(--leo-surface);border:1.5px solid color-mix(in srgb, var(--leo-accent) 55%, transparent);box-shadow:0 2px 12px var(--leo-surface-shadow);border-radius:16px}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-compose-input{color:var(--leo-ink);font-family:var(--leo-font-serif);background:0 0;font-size:1rem}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-compose-input::placeholder{color:var(--leo-ink-soft)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-compose-send{background:var(--leo-accent);color:var(--leo-accent-fg);box-shadow:0 2px 8px var(--leo-surface-shadow);border:0}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-compose-send:disabled{background:color-mix(in srgb, var(--leo-accent) 30%, transparent);color:var(--leo-accent-fg);box-shadow:none}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-attach-trigger{color:var(--leo-ink-soft);box-shadow:none;background:0 0;border:0}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-attach-trigger:hover{color:var(--leo-ink);background:color-mix(in srgb, var(--leo-ink) 8%, transparent)}.notebook-canvas-paper .course-leo-chat-disclaimer,.notebook-canvas-paper .course-leo-chat-disclaimer--canvas{z-index:18;max-width:min(820px,100% - 48px);color:color-mix(in srgb, var(--leo-ink-soft) 48%, transparent);font-family:var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;letter-spacing:.02em;text-align:center;margin:12px auto 0;padding:0 clamp(12px,2vw,22px);font-size:.68rem;font-weight:500;line-height:1.45;position:relative}.notebook-canvas-paper .course-leo-chat-disclaimer--canvas{width:min(820px,100% - 48px);left:50%;right:auto;bottom:calc((var(--leo-disclaimer-band,24px) - 1.45 * .68rem) / 2);margin:0;transform:translate(-50%)}html.dark .notebook-canvas-paper .course-leo-chat-disclaimer,html.dark .notebook-canvas-paper .course-leo-chat-disclaimer--canvas{color:color-mix(in srgb, var(--leo-ink-soft) 58%, transparent)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-chat-stream{padding-left:clamp(12px,2vw,22px);padding-right:clamp(12px,2vw,22px)}.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-message-list,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-chat-skeleton,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-compose-shell,.notebook-canvas-paper .course-leo-chat-page:not(.is-empty-chat) .course-leo-suggested-actions{width:min(820px,100%);max-width:min(820px,100%);margin-left:auto;margin-right:auto}.leo-scholar-welcome,.course-leo-document-suggestions,.course-leo-empty-eyebrow,.course-leo-empty-scope,.course-leo-chat-stream,.course-leo-input-dock,.course-leo-compose-shell,.course-leo-compose-input-row{transition:opacity .13s,transform .13s,flex .13s cubic-bezier(.4,0,.2,1),min-height .13s cubic-bezier(.4,0,.2,1),max-height .13s cubic-bezier(.4,0,.2,1)}.course-leo-compose-expand{z-index:3;width:28px;height:28px;color:var(--leo-ink-soft,#75889a);cursor:pointer;opacity:0;pointer-events:none;background:0 0;border:0;border-radius:8px;place-items:center;padding:0;transition:opacity .22s,transform .22s,color .15s,background-color .15s;display:grid;position:absolute;top:8px;right:8px;transform:translateY(-2px)}.course-leo-compose-expand.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}.course-leo-compose-expand:hover{color:var(--leo-accent,#355879);background:color-mix(in srgb, var(--leo-accent,#355879) 8%, transparent)}.course-leo-compose-expand:focus-visible{outline:2px solid var(--leo-accent,#4c76a2);outline-offset:2px}.course-leo-compose-expand:disabled{opacity:.45;cursor:not-allowed}.course-leo-compose-expand-icon{stroke-width:2px;width:18px;height:18px}.course-leo-chat-page.is-empty-chat .course-leo-compose-expand{top:10px;right:12px}.course-leo-chat-page.is-empty-chat .course-leo-compose-shell.is-expand-visible .course-leo-compose-input,.course-leo-compose-shell.is-expand-visible .course-leo-compose-input{padding-right:28px}.course-leo-chat-page.is-prompt-expanded .course-leo-chat-main{overflow:visible}.course-leo-chat-page.is-prompt-expanded .course-leo-empty-eyebrow,.course-leo-chat-page.is-prompt-expanded .course-leo-chat-disclaimer,.course-leo-chat-page.is-prompt-expanded .course-leo-stream-error{opacity:0;pointer-events:none;transition:opacity .14s}.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-empty-scope{opacity:1;pointer-events:auto}.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-chat-stream{z-index:1;position:relative}.course-leo-chat-page.is-prompt-expanded.is-empty-chat .leo-scholar-welcome,.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-document-suggestions{opacity:0;pointer-events:none;transition:opacity .14s}.course-leo-chat-page.is-prompt-expanded:not(.is-empty-chat) .course-leo-chat-stream{opacity:.5;pointer-events:none;transition:opacity .14s}.course-leo-chat-page.is-prompt-expanded .course-leo-input-dock{z-index:20;overflow:visible}.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-input-dock{padding-top:var(--leo-compose-collapsed-h,70px);position:relative}.course-leo-chat-page.is-prompt-expanded .course-leo-compose-shell{z-index:5;background:var(--leo-surface,#fff);flex-direction:column;transition:min-height .13s cubic-bezier(.4,0,.2,1),max-height .13s cubic-bezier(.4,0,.2,1);display:flex}.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-shell{top:calc(var(--leo-compose-collapsed-h,70px) / 2);border-radius:14px;width:auto;min-height:clamp(180px,34vh,280px);max-height:min(68vh,640px);position:absolute;left:24px;right:24px;transform:translateY(-50%)}.course-leo-chat-page.is-prompt-expanded:not(.is-empty-chat) .course-leo-compose-shell{border-radius:18px;min-height:clamp(210px,47vh,380px);max-height:min(80vh,100dvh - 96px);margin-left:auto;margin-right:auto;position:relative}.course-leo-chat-page.is-prompt-expanded .course-leo-compose-input-row,.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-input-row,.workspace-chat-card .course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-input-row,html.dark .workspace-chat-card .course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-input-row{flex-direction:column;flex:auto;align-items:stretch;min-height:0;transition:flex .13s cubic-bezier(.4,0,.2,1),min-height .13s cubic-bezier(.4,0,.2,1);display:flex}.course-leo-chat-page.is-prompt-expanded .course-leo-compose-input,.course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-input,.workspace-chat-card .course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-input,html.dark .workspace-chat-card .course-leo-chat-page.is-prompt-expanded.is-empty-chat .course-leo-compose-input{box-sizing:border-box;text-align:left;flex:auto;align-self:stretch;width:100%;min-width:0;max-width:100%;min-height:160px;max-height:none;transition:min-height .13s cubic-bezier(.4,0,.2,1);overflow-y:auto}.course-leo-chat-page.is-prompt-expanded .course-leo-compose-actions{flex-shrink:0;align-self:flex-end}.course-leo-chat-page.is-prompt-expanded .course-leo-compose-pending-files{flex-shrink:0}@media (prefers-reduced-motion:reduce){.course-leo-compose-expand,.course-leo-compose-input,.course-leo-chat-page.is-empty-chat .course-leo-compose-input-row,.course-leo-chat-page.is-empty-chat .course-leo-chat-stream,.course-leo-chat-page.is-empty-chat .course-leo-document-suggestions,.course-leo-chat-page.is-prompt-expanded .leo-scholar-welcome,.course-leo-chat-page.is-prompt-expanded .course-leo-document-suggestions,.course-leo-chat-page.is-prompt-expanded .course-leo-empty-eyebrow,.course-leo-chat-page.is-prompt-expanded .course-leo-chat-disclaimer,.course-leo-chat-page.is-prompt-expanded .course-leo-stream-error,.course-leo-chat-page.is-prompt-expanded .course-leo-chat-stream,.course-leo-chat-page.is-prompt-expanded .course-leo-input-dock,.course-leo-chat-page.is-prompt-expanded .course-leo-compose-shell,.course-leo-chat-page.is-prompt-expanded .course-leo-compose-input-row,.course-leo-chat-page.is-prompt-expanded .course-leo-compose-input{transition:none}}
