:root{color:#141718;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fff;font-family:Segoe UI,Arial,sans-serif;font-weight:400}*{box-sizing:border-box}body{min-width:360px;margin:0}button,textarea{font:inherit}button{cursor:pointer;color:inherit;-webkit-tap-highlight-color:transparent}button:focus-visible,textarea:focus-visible{outline-offset:4px;outline:2px solid #7772ec}button svg{flex-shrink:0}button:disabled{cursor:default}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.header-actions{flex-shrink:0;align-items:center;gap:8px;margin-left:auto;display:flex}.course-help-button{color:#52676b;background:#fff;border:1px solid #e1e7e9;border-radius:8px;justify-content:center;align-items:center;gap:6px;min-height:34px;padding:7px 10px;font-size:13px;display:inline-flex}.course-help-button:hover,.course-help-button[aria-expanded=true]{background:#f3f7f5;border-color:#c8d7ce}.course-help-dialog{color:#304942;background:#fff;border:1px solid #dde6e0;border-radius:18px;width:min(580px,100vw - 32px);max-width:none;max-height:calc(100dvh - 40px);margin:auto;padding:0;box-shadow:0 20px 80px #172e3a33}.course-help-dialog[open]{flex-direction:column;display:flex}.course-help-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#172e3a66}.course-help-header{border-bottom:1px solid #e6ede9;flex-shrink:0;justify-content:space-between;align-items:flex-start;gap:16px;padding:22px 24px 18px;display:flex}.course-help-header h2{letter-spacing:-.3px;margin:0;font-size:21px;font-weight:600}.course-help-header p{color:#75857d;margin:7px 0 0;font-size:13px;line-height:1.5}.course-help-header .icon-button{color:#687f74;border-radius:50%;width:32px;height:32px}.course-help-header .icon-button:hover{background:#f0f4f1}.course-help-body{overscroll-behavior:contain;min-height:0;padding:20px 24px 26px;overflow-y:auto}.course-help-guide{background:#f8faf9;border:1px solid #e3eae6;border-radius:12px;margin:0 0 22px;padding:14px}.course-help-guide img{border:1px solid #e2e9e5;border-radius:8px;width:min(100%,280px);height:auto;margin:0 auto;display:block}.course-help-guide figcaption{color:#728279;text-align:center;margin-top:12px;font-size:12px;line-height:1.6}.course-help-options{margin:0}.course-help-options>div+div{border-top:1px solid #e8eeea;margin-top:19px;padding-top:19px}.course-help-options dt{flex-wrap:wrap;align-items:center;gap:9px;margin:0 0 8px;font-size:14px;font-weight:600;display:flex}.course-help-options dt span{color:#718278;background:#f0f4f1;border-radius:5px;padding:3px 7px;font-size:10px;font-weight:400}.course-help-options dd{color:#64766d;margin:0;font-size:13px;line-height:1.75}@media (width<=699px){.header-actions{gap:4px}.course-help-button{gap:4px;padding:6px 8px}.course-help-dialog{border-radius:14px;width:calc(100vw - 20px);max-height:calc(100dvh - 20px)}.course-help-header{gap:10px;padding:18px}.course-help-header h2{font-size:19px}.course-help-body{padding:16px 18px 22px}.course-help-guide{padding:10px}}.data-view{color:#385247;background:#fff;border:1px solid #dce6df;border-radius:14px;min-width:0;margin:18px 0 0;padding:18px}.message-bubble:has(.data-view){width:100%}.data-view-header{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.data-view-header>div:first-child{min-width:0}.data-view-header p{color:#75877e;overflow-wrap:anywhere;align-items:center;gap:6px;margin:0 0 6px;font-size:11px;display:flex}.data-view-header svg{flex-shrink:0}.data-view h3{overflow-wrap:anywhere;margin:0;font-size:15px;font-weight:600;line-height:1.5}.data-view-switch{background:#f0f4f1;border-radius:8px;flex-shrink:0;padding:3px;display:flex}.data-view-switch button{color:#74867b;background:0 0;border:0;border-radius:6px;padding:4px 8px;font-size:11px}.data-view-switch button[aria-pressed=true]{color:#375c46;background:#fff;box-shadow:0 1px 3px #203b2515}.data-view-description{color:#6d8175;overflow-wrap:anywhere;margin:8px 0 18px;font-size:11px}.data-view-table{border:1px solid #e2eae5;border-radius:8px;max-height:350px;overflow:auto}.data-view-table table{border-collapse:separate;border-spacing:0;white-space:nowrap;width:100%;font-size:12px}.data-view-table th{text-align:left;z-index:1;background:#f1f6f2;font-weight:500;position:sticky;top:0}.data-view-table th,.data-view-table td{border-bottom:1px solid #e7eee9;padding:9px 12px}.data-view-table tbody tr:last-child td{border:0}.data-view-table tbody tr:nth-child(2n){background:#fafcfb}.data-view-table .numeric-cell{font-variant-numeric:tabular-nums;text-align:right}.data-view-bars{max-height:380px;padding:0 2px 4px;overflow-y:auto}.data-view-bar{grid-template-columns:minmax(65px,27%) 1fr 52px;align-items:center;gap:10px;margin:10px 0;font-size:12px;display:grid}.data-view-bar>span{text-overflow:ellipsis;white-space:nowrap;line-height:1.35;overflow:hidden}.data-view-bar strong{text-align:right;font-variant-numeric:tabular-nums;font-weight:500}.data-view-track{background:#f4f7f4;border-radius:3px;height:18px;position:relative}.data-view-fill{background:#7ca58e;border-radius:3px;height:100%;position:absolute}.data-view-zero{background:#aabbb0;width:1px;height:22px;position:absolute;top:-2px}.data-view-plot{width:100%;overflow-x:auto}.data-view-plot svg{fill:#75877b;width:100%;min-width:320px;font-size:10px;display:block;overflow:visible}.chart-grid{stroke:#e5ede7;stroke-width:1px}.chart-axis-label{fill:#506c58;font-size:11px}.chart-line{fill:none;stroke:#5c8e71;stroke-width:2px}.chart-point{fill:#6f9b80;stroke:#fff;stroke-width:1px;opacity:.85}.chart-point:hover,.chart-point:focus{fill:#285b3c;opacity:1;stroke:#285b3c;outline:none}.data-view figcaption{color:#7a8c80;overflow-wrap:anywhere;flex-direction:column;gap:3px;margin-top:14px;font-size:10px;line-height:1.5;display:flex}.data-view footer{border-top:1px solid #e8eee9;justify-content:space-between;align-items:center;gap:10px;margin-top:14px;padding-top:12px;font-size:11px;display:flex}.data-view footer button{font-size:inherit}.data-view footer a{color:#527961;align-items:center;gap:5px;text-decoration:none;display:inline-flex}.data-view-empty{color:#7c8d82;padding:16px 0;font-size:12px}@media (width<=699px){.data-view{margin-top:14px;padding:12px}.data-view-header{flex-direction:column;gap:8px}.data-view-bar{grid-template-columns:minmax(85px,33%) 1fr 32px;gap:6px;font-size:11px}.data-view-plot svg{min-width:0;font-size:20px}.chart-axis-label{font-size:20px}.data-view footer{flex-wrap:wrap}}.data-view footer.data-view-files{flex-direction:column;align-items:stretch;display:flex}.data-view-files>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.data-view-files button{white-space:normal;text-align:left;overflow-wrap:anywhere}.data-view-files a{flex-shrink:0}.relationship-map{overflow-x:auto}.relationship-map svg{width:100%;min-width:480px;display:block}.relationship-line{stroke:#93ad9d;stroke-width:2px;stroke-dasharray:6 4}.relationship-node{fill:#f4f8f5;stroke:#bcd1c3}.relationship-filename{fill:#365943;font-size:15px;font-weight:500}.relationship-count{fill:#7a8c80;font-size:12px}.relationship-edges{gap:10px;display:grid}.relationship-edges>div{border:1px solid #e1e9e3;border-radius:8px;padding:12px}.relationship-edge-heading{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.relationship-edge-heading strong{overflow-wrap:anywhere;font-size:12px;font-weight:500}.relationship-edge-heading>span{color:#50765b;background:#edf4ee;border-radius:5px;padding:2px 6px;font-size:10px}.relationship-edges code{overflow-wrap:anywhere;margin:6px 0;font-size:11px;display:block}.relationship-edges p,.relationship-edges small{color:#75877b;margin:4px 0 0;font-size:10px;line-height:1.5}.relationship-card footer{flex-wrap:wrap}.message-bubble:has(.relationship-card){width:100%}.app-shell{--blue:#1513eb;--green:#00680c;--border:#e1e7e9;--nav-width:148px;--support-width:228px;--resource-width:280px;--topbar-height:60px;--lesson-header-height:52px;letter-spacing:.15px;flex-direction:column;height:100dvh;min-height:0;padding:0 16px;font-size:15px;display:flex}.icon-button{background:0 0;border:0;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.topbar{height:var(--topbar-height);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:22px;display:flex}.navigation-toggle svg{width:23px;height:23px}.navigation-toggle{color:var(--blue);width:28px;height:34px}.breadcrumbs{align-items:center;gap:8px;min-width:0;font-size:15px;display:flex}.breadcrumbs button{color:var(--blue);white-space:nowrap;background:0 0;border:0;padding:4px 0}.breadcrumbs>svg{color:#647482;flex-shrink:0}.breadcrumbs .week-crumb{text-overflow:ellipsis;max-width:345px;overflow:hidden}.breadcrumbs>span{color:#283846;white-space:nowrap}.control-panel{flex-shrink:0;margin-left:auto;position:relative}.control-panel-toggle{color:#647482;border-radius:8px;width:32px;height:32px}.control-panel-toggle:hover,.control-panel-toggle[aria-expanded=true]{background:#f0f3f4}.control-panel-menu{z-index:20;border:1px solid var(--border);background:#fff;border-radius:10px;min-width:160px;padding:5px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 8px 24px #243b461a}.control-panel-menu>button,.control-panel-menu>a{text-align:left;width:100%;color:inherit;background:0 0;border:0;border-radius:6px;padding:9px 12px;font-size:13px;text-decoration:none;display:block}.control-panel-menu>button:hover,.control-panel-menu>a:hover{background:#f2f5f5}.control-panel-menu>button:disabled{color:#8a959b}.control-panel-check{float:right;color:var(--green);margin-left:16px}.control-panel-menu>p{color:#804b38;max-width:180px;margin:6px 8px;font-size:12px;line-height:1.5}.page-body{grid-template-columns:var(--nav-width) minmax(0, 1fr);flex:1;min-height:0;display:grid}.page-body.navigation-hidden{grid-template-columns:minmax(0,1fr)}.course-navigation{flex-direction:column;align-items:stretch;padding:20px 16px 0 0;display:flex}.course-navigation button{text-align:left;color:var(--blue);background:0 0;border:0;border-left:2px solid #0000;padding:8px 5px;font-size:14px}.navigation-label{color:#7c878c;text-transform:uppercase;letter-spacing:1px;margin:0 0 12px 7px;font-size:11px}.course-navigation button>span{color:#7c878c;margin-bottom:4px;font-size:11px;font-weight:400;display:block}.course-navigation button{margin-bottom:8px;line-height:1.5}.course-navigation button.current{color:#2b3c48;border-left-color:#354651;font-weight:600}.lesson-shell{flex-direction:column;min-width:0;min-height:0;display:flex}.lesson-header{height:var(--lesson-header-height);border-bottom:1px solid var(--border);flex-shrink:0;grid-template-columns:132px minmax(0,1fr) 48px;align-items:center;gap:12px;display:grid}.support-toggle-slot{border-right:1px solid var(--border);align-items:center;height:100%;padding-left:16px;display:flex}.support-toggle{white-space:nowrap;background:#f0f2f2;border:0;border-radius:24px;align-items:center;gap:8px;padding:7px 12px;display:flex}.support-toggle span{display:inline-flex}.rotate-icon{transform:rotate(180deg)}.lesson-header h1{text-align:center;margin:0;font-size:19px;font-weight:650;line-height:1.3}.pill-button{white-space:nowrap;background:#fff;border:1px solid #dce1e3;border-radius:24px;justify-content:center;align-items:center;gap:8px;padding:6px 11px;line-height:1.15;display:inline-flex}.pill-button:hover{background:#f8faf9}.lesson-body{background:#f8fafb;flex:1;min-height:0;display:flex}.support-panel{width:var(--support-width);flex-direction:column;flex-shrink:0;padding:22px 12px 24px 18px;display:flex}.instructor{align-items:center;gap:9px;display:flex}.avatar{color:#41684b;letter-spacing:0;background:#e0e9df;border:2px solid #a6bda9;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:11px;font-weight:600;display:inline-flex}.avatar img{object-fit:cover;border-radius:inherit;width:100%;height:100%}.instructor h2{white-space:nowrap;margin:0 0 3px;font-size:18px;font-weight:650;line-height:1.2}.instructor p{color:var(--green);margin:0;font-size:14px}.support-label{color:#636969;margin:28px 0 15px;font-size:13px;font-weight:500}.support-actions{flex-direction:column;gap:18px;display:flex}.support-actions button,.feedback-button{text-align:left;background:0 0;border:0;align-items:center;gap:9px;padding:0;line-height:1.2;display:flex}.support-actions button svg,.support-actions button:hover,.feedback-button:hover{color:var(--green)}.tutor-pending{color:#737685;margin:8px 0 10px 12px;font-size:13px;line-height:1.5}.thinking-shimmer{font-weight:500;display:inline-block}@supports ((-webkit-background-clip:text) or (background-clip:text)){.thinking-shimmer{color:#0000;background:linear-gradient(100deg,#737685 35%,#535160 46%,#272435 50%,#535160 54%,#737685 65%) 0 0/250% 100%;-webkit-background-clip:text;background-clip:text;animation:2s linear infinite thinking-shimmer}}@keyframes thinking-shimmer{0%{background-position:150% 0}to{background-position:-50% 0}}@media (prefers-reduced-motion:reduce){.thinking-shimmer{color:#737685;background:0 0;animation:none}}.feedback-button{margin-top:auto;padding-top:24px}.activity-workspace{grid-template-columns:minmax(0, 1fr) var(--resource-width);background:#fff;border:1px solid #edf0f0;border-radius:20px;flex:1;min-width:0;min-height:0;margin:8px 0;display:grid;overflow:hidden;box-shadow:0 1px 2px #243b4610}.conversation{flex-direction:column;min-width:0;min-height:0;display:flex;position:relative}.conversation-stream{overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#dce3e7 transparent;flex:1;min-height:0;padding:24px;overflow-y:auto}.message-list{flex-direction:column;gap:24px;max-width:820px;margin:0 auto;display:flex}.message-row{align-items:flex-start;gap:12px;max-width:92%;display:flex}.avatar-small{width:30px;height:30px;font-size:10px}.message-bubble{color:#3d4d60;background:#f4f8f4;border:1px solid #c4d9c7;border-radius:22px;min-width:0;padding:16px 20px;font-size:15px;line-height:1.65}.message-heading{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;font-size:13px;line-height:1.4;display:flex}.message-author{color:var(--green);font-weight:600}.message-kind{color:#657e86;white-space:nowrap;align-items:center;gap:4px;font-size:12px;display:inline-flex}.message-content{white-space:pre-wrap;overflow-wrap:anywhere}.message-markdown{white-space:normal}.message-markdown>:first-child{margin-top:0}.message-markdown>:last-child{margin-bottom:0}.message-markdown p{white-space:pre-wrap;margin:0 0 12px}.message-markdown h1,.message-markdown h2,.message-markdown h3,.message-markdown h4,.message-markdown h5,.message-markdown h6{color:#294738;margin:18px 0 8px;font-size:15px;font-weight:600;line-height:1.5}.message-markdown strong{font-weight:600}.message-markdown ul,.message-markdown ol{margin:8px 0 14px;padding-left:22px}.message-markdown li{margin:4px 0;padding-left:2px}.message-markdown li>p{margin:4px 0}.message-markdown blockquote{color:#65756d;border-left:3px solid #b3c9bb;margin:12px 0;padding:2px 0 2px 14px}.message-markdown blockquote>:last-child{margin-bottom:0}.message-markdown code{background:#e8eee9;border-radius:4px;padding:2px 5px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em}.message-markdown pre{background:#edf2ee;border:1px solid #dce5de;border-radius:8px;max-width:100%;padding:12px 14px;line-height:1.55;overflow-x:auto}.message-markdown pre code{white-space:pre;overflow-wrap:normal;background:0 0;padding:0;display:block}.message-markdown hr{border:0;border-top:1px solid #d5e1d8;margin:16px 0}.message-table{border:1px solid #d5e1d8;border-radius:8px;max-width:100%;margin:12px 0;overflow-x:auto}.message-table table{border-collapse:collapse;width:100%;font-size:12px}.message-table th,.message-table td{text-align:left;white-space:nowrap;border-bottom:1px solid #dce5de;padding:8px 10px}.message-table th{background:#eaf1ec;font-weight:600}.message-table tr:last-child td{border-bottom:0}.message-markdown .task-list-item{list-style:none}.message-markdown .task-list-item input{margin-right:7px}.message-sources{flex-wrap:wrap;gap:6px;margin-top:12px;display:flex}.message-sources a{color:#416456;overflow-wrap:anywhere;background:#f7faf8;border:1px solid #dce3df;border-radius:8px;align-items:center;gap:5px;max-width:100%;padding:5px 9px;font-size:11px;text-decoration:none;display:inline-flex}.message-sources a svg{flex-shrink:0}.message-sources a:hover{background:#edf4ef}.message-sources a:focus-visible{outline-offset:2px;outline:2px solid #416456}.user-message{align-self:flex-end;max-width:82%}.user-message .message-bubble{background:#f1f0ff;border-color:#e3dfff;border-radius:18px 4px 18px 18px}.user-message .message-author{color:#6356a6}.chat-error{color:#804b38;background:#fff8f2;border-radius:10px;flex-wrap:wrap;align-items:center;gap:10px;margin-left:39px;padding:10px 12px;font-size:13px;display:flex}.chat-error button{color:inherit;background:0 0;border:0;padding:0;text-decoration:underline}.composer-area{background:#fff;flex-shrink:0;padding:10px 24px 16px;position:relative}.composer-area:empty{padding:0}.scroll-down{z-index:1;background:#fff;border:1px solid #dce2e3;border-radius:50%;width:32px;height:32px;position:absolute;top:-40px;left:calc(50% - 16px);box-shadow:0 2px 8px #0000000c}.composer{background:#f2f4f5;border:1px solid #e4e9eb;border-radius:18px;max-width:820px;margin:0 auto;padding:10px}.composer textarea{resize:none;color:#344851;background:0 0;border:0;width:100%;min-height:38px;max-height:120px;padding:6px 8px;font-size:14px;line-height:1.5;display:block;overflow-y:auto}.composer textarea::placeholder{color:#697f88;opacity:1}.composer textarea:focus{outline:none}.composer:focus-within{border-color:#9893e7}.composer-actions{justify-content:space-between;align-items:center;gap:10px;margin-top:6px;display:flex}.composer-tools{align-items:center;gap:8px;display:flex}.resource-toggle{display:none}.resource-panel{border-left:1px solid var(--border);min-width:0;padding:20px 18px;overflow-y:auto}.resource-tabs{background:#f0f2f2;border-radius:25px;padding:4px;display:flex}.resource-tabs button{color:#737777;background:0 0;border:0;border-radius:22px;flex:1;min-width:0;padding:5px 8px;font-weight:500}.resource-tabs button[aria-pressed=true]{color:#101415;background:#fff}.lesson-footer{border-top:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;height:52px;margin-top:8px;display:flex}.page-button{color:#2a3a47;background:#f3f5f6;border:1px solid #d7dfe4;border-radius:3px;align-items:center;gap:4px;padding:8px 10px;font-size:14px;display:inline-flex}.page-button:hover{background:#e9eef0}@media (width>=1600px){.app-shell{--nav-width:210px;--support-width:316px;--resource-width:370px;--topbar-height:68px;--lesson-header-height:56px;padding:0 18px;font-size:16px}.support-panel{padding:28px 24px}.instructor h2{font-size:20px}.instructor .avatar{width:40px;height:40px}.message-bubble{font-size:16px}.resource-panel{padding:24px}}@media (width<=1599px){.instructor h2{letter-spacing:0;font-size:16px}}@media (width<=1279px){.page-body{grid-template-columns:minmax(0,1fr)}.course-navigation{z-index:5;left:0;top:var(--topbar-height);background:#fff;width:200px;padding:24px 18px;position:absolute;bottom:0;box-shadow:8px 0 24px #243b4618}.breadcrumbs .week-crumb{max-width:300px}}@media (width<=899px){.app-shell{--support-width:150px;--resource-width:255px;padding:0 12px}.topbar{gap:16px}.breadcrumbs{gap:5px;font-size:14px}.breadcrumbs .week-crumb{max-width:240px}.lesson-header{gap:8px}.support-toggle-slot{padding-left:8px}}@media (width<=699px){.app-shell{--support-width:112px;--topbar-height:52px;--lesson-header-height:52px;min-height:0}.breadcrumbs{gap:6px;font-size:14px;overflow:hidden}.breadcrumbs .week-crumb,.breadcrumbs .week-crumb+svg,.breadcrumbs button:nth-of-type(2),.breadcrumbs button:nth-of-type(2)+svg{display:none}.breadcrumbs>span{text-overflow:ellipsis;overflow:hidden}.course-navigation{position:fixed}.lesson-header{grid-template-columns:112px minmax(0,1fr) 30px}.lesson-header h1{font-size:18px}.support-toggle-slot{border:0;padding-left:0}.support-toggle{gap:5px;padding:9px 10px;font-size:14px}.activity-workspace{border-radius:16px}.conversation-stream{padding:12px 12px 20px}.message-list{gap:20px}.message-row{gap:7px;max-width:100%}.message-bubble{padding:10px 12px 12px}.message-heading{gap:6px;font-size:12px}.message-kind{font-size:11px}.user-message{max-width:86%}.composer-area{padding:6px 12px 12px}.composer{border-radius:16px;padding:8px}.composer textarea{font-size:16px}.lesson-footer{height:44px;margin-top:0}.page-button{padding:6px 8px;font-size:12px}}.panel-dialog{border:1px solid var(--border);color:inherit;background:#fff;max-height:calc(100dvh - 24px);padding:0;overflow:hidden;box-shadow:0 16px 60px #172e3a33}.panel-dialog[open]{display:flex}.panel-dialog::backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#172e3a55}.panel-dialog-inner{flex-direction:column;width:100%;min-height:0;display:flex}.panel-dialog-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;display:flex}.panel-dialog-header strong{font-size:15px;font-weight:500}.panel-dialog-header .icon-button{border-radius:50%;width:36px;height:36px}.panel-dialog-header .icon-button:hover{background:#f0f3f4}.support-panel-dialog{border-radius:0 20px 20px 0;width:min(360px,100vw - 32px);max-width:none;height:100dvh;max-height:100dvh;margin:0}.panel-dialog .support-panel{background:#f8fafb;flex:1;width:100%;min-height:0;padding:24px;overflow-y:auto}.resource-panel-dialog{border-radius:20px;width:min(520px,100vw - 24px);max-width:none;max-height:80dvh;margin:auto auto 12px}.panel-dialog .resource-panel{border:0;padding:20px}@media (width<=999px){.activity-workspace{flex-direction:column;display:flex}.conversation{flex:1}.resource-toggle{border:0;border-top:1px solid var(--border);color:#53656c;background:#fff;flex-shrink:0;align-items:center;gap:8px;width:100%;height:44px;padding:0 16px;font-size:13px;display:flex}.resource-toggle svg:last-child{margin-left:auto}}.lesson-number{color:#8a959b;text-align:center;font-size:12px}.primary-button{color:#fff;white-space:nowrap;background:#7568dc;border:1px solid #6c60d1;border-radius:9px;justify-content:center;align-items:center;gap:10px;padding:9px 16px;font-size:13px;font-weight:500;display:inline-flex}.primary-button:hover:not(:disabled){background:#6658cc}.primary-button:disabled{color:#8a9299;background:#e8ebee;border-color:#e8ebee}.page-button:disabled{opacity:.4}.message-actions{color:#71808a;border-top:1px solid #dce7de;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:18px;padding-top:14px;font-size:12px;display:flex}.message-actions>button{margin-left:auto}.question-choices{margin-top:18px}.question-choices fieldset{border:0;flex-direction:column;gap:7px;margin:0;padding:0;display:flex}.question-choices legend{color:#73818a;margin-bottom:10px;font-size:12px}.question-choices label{cursor:pointer;background:#fff;border:1px solid #dbe4dc;border-radius:9px;align-items:flex-start;gap:10px;padding:9px 12px;display:flex}.question-choices label:hover{border-color:#9eb9a3}.question-choices label.selected{background:#edf4ee;border-color:#76a280}.question-choices input{accent-color:#497b53;flex-shrink:0;margin:5px 0 0}.question-choices .primary-button{margin-top:14px}.task-content{color:#536774;font-size:14px;line-height:1.7}.task-content h2{color:#1f3039;margin-top:24px;font-size:15px;font-weight:600}.task-content p{gap:10px;margin:0 0 20px;display:flex}.task-step{color:#6d7e84;background:#eef2f2;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;margin-top:2px;font-size:11px;display:flex}.message-bubble:has(.lesson-video){width:100%}.lesson-video{width:100%;max-width:640px;margin-top:18px}.lesson-video video{aspect-ratio:16/9;background:#101917;border-radius:9px;width:100%;display:block}.video-progress{color:#5d7465;align-items:center;gap:12px;margin-top:12px;font-size:11px;display:flex}.video-progress progress{accent-color:#6b9974;flex:1;min-width:0;height:5px}.video-credit{color:#7a8a83;margin-bottom:0;font-size:10px;line-height:1.5}.video-credit a{color:inherit}.video-notice{color:#6a786e;font-size:12px;line-height:1.6}.lesson-video .chat-error{margin:12px 0 0}.video-loading{color:#708379;padding:25px 0 8px;font-size:13px}.video-loading button{margin-left:10px}.reflection-composer{margin-bottom:12px}.reflection-composer textarea{min-height:68px}.reflection-composer .composer-actions{padding-left:8px}.reflection-composer .composer-actions>span{color:#839098;font-size:11px}.lesson-footer>span{color:#7f8b92;font-size:12px}@media (width<=699px){.lesson-header h1{font-size:16px}.lesson-number{font-size:10px}.conversation-stream{padding-top:18px}.primary-button{padding:8px 12px;font-size:12px}.question-choices label{padding:8px 10px}.reflection-composer .composer-actions{align-items:flex-end}.reflection-composer .composer-actions>span{max-width:90px;font-size:10px}}.dataset-card{border:1px solid #e5e9e9;border-radius:19px;margin-top:28px;padding:18px;box-shadow:0 2px 3px #243b4605}.dataset-card-heading{align-items:center;gap:9px;display:flex}.dataset-card-heading h2{white-space:nowrap;text-overflow:ellipsis;flex:auto;min-width:0;margin:0;font-size:15px;font-weight:500;line-height:1.6;overflow:hidden}.dataset-file-icon{color:#52736a;background:#edf4ef;border:1px solid #e0ebe3;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:35px;height:40px;display:flex}.dataset-card .dataset-file-icon{background:0 0;border:0;border-radius:0;width:22px;height:26px}.dataset-card-meta{color:#78898b;margin:14px 0 9px;font-size:11px}.dataset-card-meta span{white-space:nowrap}.dataset-card-actions{flex-direction:column;align-items:flex-start;gap:9px;margin-top:20px;display:flex}.dataset-card-actions .pill-button{font-size:14px}.dataset-card a,.dataset-dialog a{color:inherit;text-decoration:none}.dataset-card-actions button:disabled{color:#81908a;cursor:default;background:#f5f8f5}.dataset-loading{color:#6c7e81;padding-top:15px;font-size:12px;line-height:1.6}.transcript-link{color:#456f66;border-top:1px solid #e5ebe8;align-items:center;gap:8px;padding-top:16px;font-size:12px;text-decoration:none;display:inline-flex}.tutor-composer{background:#f1f3f4;border-color:#0000;border-radius:22px;margin-top:0;padding:12px}.tutor-composer textarea{min-height:46px;max-height:160px;padding:7px 10px;font-size:15px}.tutor-composer .composer-actions{margin-top:8px}.composer-add,.composer-send{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;padding:0;display:inline-flex}.composer-add{color:#6c8088;background:#fff;border:1px solid #dce3e6}.composer-add:hover:not(:disabled){background:#e8edef}.composer-send{color:#fff;background:#827be6;border:0}.composer-send:hover:not(:disabled){background:#7067d7}.composer-send:disabled{cursor:default;background:#b5b0ef}.composer-add:disabled{opacity:.5;cursor:default}.composer-file-error{color:#804b38;margin:8px 10px 0;font-size:12px}@media (width<=650px){.tutor-composer textarea{font-size:16px}}.attachment-chip{color:#42665c;background:#fff;border:1px solid #d7e1dc;border-radius:8px;align-items:center;gap:7px;max-width:100%;margin:0 0 6px;padding:6px 9px;font-size:11px;display:inline-flex}.attachment-chip>span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.attachment-chip>svg{flex-shrink:0}.attachment-chip button{border-radius:4px;width:22px;height:22px;margin:-3px -3px -3px 3px}.attachment-chip button:hover{background:#edf3ef}.attachment-only{background:0 0;border:0;padding:0}.attachment-only .attachment-chip{margin:0}.chat-file{align-items:center;gap:10px;padding:4px 0;display:flex}.chat-file svg{color:#75867e;flex-shrink:0}.chat-file strong{overflow-wrap:anywhere;font-size:12px;font-weight:500;display:block}.chat-file span{color:#7e8494;font-size:10px;display:block}.dataset-dialog{color:#304942;background:#fff;border:1px solid #e1e8e6;border-radius:20px;width:min(1120px,100vw - 56px);max-width:none;max-height:calc(100dvh - 48px);padding:0;font-size:13px;box-shadow:0 24px 100px #172e3a33}.dataset-dialog[open]{flex-direction:column;display:flex}.dataset-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#172e3a66}.dataset-dialog-header{border-bottom:1px solid #e6ede9;flex-shrink:0;align-items:center;gap:14px;padding:22px 26px;display:flex}.dataset-dialog-header .dataset-file-icon{width:45px;height:50px}.dataset-eyebrow{color:#7e938a;text-transform:uppercase;letter-spacing:1.3px;margin:0 0 3px;font-size:9px;font-weight:600}.dataset-dialog-header h2{letter-spacing:-.3px;margin:0;font-size:20px;font-weight:600}.dataset-filename{color:#80918a;margin:4px 0 0;font-size:11px}.dataset-close{color:#70847a;border-radius:50%;align-self:flex-start;width:30px;height:30px;margin-left:auto}.dataset-close:hover{background:#eff4f0}.dataset-dialog-body{min-height:0;padding:0 26px;overflow-y:auto}.dataset-description{color:#74857f;margin:18px 0;font-size:12px;line-height:1.6}.dataset-overview{background:#f5f8f5;border:1px solid #e7eee8;border-radius:12px;grid-template-columns:.9fr 1.1fr;align-items:center;gap:24px;margin-bottom:22px;padding:18px 20px;display:grid}.dataset-overview.metrics-only{grid-template-columns:1fr}.dataset-metrics{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.dataset-metrics strong{letter-spacing:-1px;font-variant-numeric:tabular-nums;font-size:29px;font-weight:500}.dataset-metrics span{color:#7b8d83;margin-top:5px;font-size:10px;display:block}.dataset-distribution{border-left:1px solid #dde7df;padding-left:24px}.dataset-distribution h3{justify-content:space-between;margin:0 0 12px;font-size:11px;font-weight:500;display:flex}.dataset-distribution h3 span{color:#8b9a90;font-size:9px}.dataset-distribution>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 20px;display:grid}.genre-bar{grid-template-columns:73px 1fr 20px;align-items:center;gap:7px;font-size:9px;display:grid}.genre-bar>div{background:#e2ebe4;border-radius:4px;height:4px;overflow:hidden}.genre-bar i{background:#7caa93;border-radius:4px;height:100%;display:block}.genre-bar strong{color:#798c80;text-align:right;font-variant-numeric:tabular-nums;font-weight:400}.dataset-table-toolbar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.dataset-table-toolbar label{color:#92a198;border:1px solid #dfe7e2;border-radius:8px;align-items:center;gap:8px;width:260px;max-width:70%;padding:8px 11px;display:flex}.dataset-table-toolbar input{color:#445e53;background:0 0;border:0;outline:none;width:100%;min-width:0;font-size:12px}.dataset-table-toolbar label:focus-within{border-color:#87a695}.dataset-table-toolbar>span{color:#7f9288;font-size:11px}.dataset-table-scroll{border:1px solid #e1e9e4;border-radius:10px;min-height:110px;max-height:clamp(140px,100dvh - 520px,360px);overflow:auto}.dataset-table{border-collapse:separate;border-spacing:0;white-space:nowrap;width:100%;font-size:11px}.dataset-table th{text-align:left;z-index:1;background:#f4f7f5;border-bottom:1px solid #e1e9e4;font-size:10px;font-weight:500;position:sticky;top:0}.dataset-table th button{color:#5b7365;text-align:left;background:0 0;border:0;justify-content:space-between;align-items:center;gap:14px;width:100%;padding:11px 13px;display:flex}.dataset-table th button svg{opacity:.25}.dataset-table th[aria-sort=ascending] svg,.dataset-table th[aria-sort=descending] svg{opacity:1;color:#497c65}.dataset-table th small{color:#a0afa6;margin-top:4px;font-size:8px;font-weight:400;display:block}.dataset-table td{color:#5c7064;border-bottom:1px solid #eef2ef;padding:11px 13px}.dataset-table tr:last-child td{border-bottom:0}.dataset-table tbody tr:nth-child(2n){background:#fcfdfc}.dataset-table tbody tr:hover{background:#f3f8f4}.dataset-table .row-number{color:#a3b2a9;text-align:center;background:#f8faf8;padding:10px 14px;font-size:10px}.dataset-table .numeric-cell{font-variant-numeric:tabular-nums}.data-badge{color:#8c9694;background:#f0f1f2;border-radius:4px;justify-content:center;min-width:31px;padding:2px 6px;font-size:9px;display:inline-flex}.data-badge.positive{color:#54846a;background:#eaf4ed}.score-cell{align-items:center;gap:10px;display:flex}.score-cell>span{min-width:24px}.score-cell meter{background:#e9eeea;border:0;width:42px;height:5px}.score-cell meter::-webkit-meter-bar{background:#e9eeea;border:0}.score-cell meter::-webkit-meter-optimum-value{background:#93b4a0}.dataset-table .dataset-empty{text-align:center;white-space:normal;color:#87988d;padding:40px}.dataset-pagination{color:#82968a;justify-content:space-between;align-items:center;margin:10px 0 18px;font-size:10px;display:flex}.dataset-pagination>div{gap:6px;display:flex}.dataset-pagination button{border-radius:6px;padding:5px}.dataset-pagination button:disabled{opacity:.3}.dataset-dictionary{border-top:1px solid #e8eee9;padding:14px 0;font-size:11px}.dataset-dictionary summary{cursor:pointer;color:#5f7b69}.dataset-dictionary dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px 28px;margin:14px 0 0;display:grid}.dataset-dictionary dt{color:#496753;font-weight:500}.dataset-dictionary dd{color:#88998b;margin:4px 0 0;line-height:1.6}.dataset-source{color:#8a998e;margin:0 0 18px;font-size:10px;line-height:1.6}.dataset-dialog-footer{background:#fcfdfc;border-top:1px solid #e6ede9;flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:16px 26px;display:flex}.dataset-dialog-footer .pill-button{border-radius:8px;padding:9px 13px;font-size:12px}.dataset-dialog-footer .primary-button{background:#547c65;border-color:#547c65}.dataset-dialog-footer .primary-button:hover:not(:disabled){background:#436951}.dataset-dialog-footer .primary-button:disabled{color:#8b9d91;background:#e8eee9;border-color:#e8eee9}@media (width<=699px){.dataset-card{margin-top:14px;padding:13px}.dataset-card-actions{flex-flow:wrap;gap:7px;margin-top:12px}.dataset-card-heading h2{font-size:15px}.dataset-dialog{border-radius:14px;width:calc(100vw - 20px);max-height:calc(100dvh - 20px)}.dataset-dialog-header{gap:10px;padding:16px}.dataset-dialog-header h2{font-size:17px}.dataset-dialog-header .dataset-file-icon{display:none}.dataset-dialog-body{padding:0 14px}.dataset-description{font-size:11px}.dataset-overview{grid-template-columns:1fr;gap:16px;padding:14px}.dataset-metrics strong{font-size:24px}.dataset-distribution{border-top:1px solid #dde7df;border-left:0;padding:14px 0 0}.genre-bar{grid-template-columns:65px 1fr 16px;gap:4px;font-size:8px}.dataset-table-scroll{max-height:270px}.dataset-table-toolbar input{font-size:16px}.dataset-table-toolbar>span{font-size:9px}.dataset-dialog-footer{padding:12px 14px}.dataset-dialog-footer .pill-button{padding:8px;font-size:11px}.dataset-dictionary dl{grid-template-columns:1fr}}.logs-page{color:#273d36;max-width:1240px;margin:0 auto;padding:40px 28px;font-size:14px}.logs-page button,.logs-page select{color:inherit;font:inherit;background:#fff;border:1px solid #dce5df;border-radius:8px;padding:9px 13px}.logs-page button{cursor:pointer}.logs-page button:disabled{opacity:.45;cursor:default}.logs-page button:focus-visible,.logs-page a:focus-visible,.logs-page select:focus-visible{outline-offset:3px;outline:2px solid #416456}.logs-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px;display:flex}.logs-header a{color:#536d61;font-size:12px;text-decoration:none}.logs-header h1{letter-spacing:-1px;margin:20px 0 8px;font-size:32px}.logs-header p{color:#74837c;margin:0}.logs-filters{align-items:flex-end;gap:16px;margin-bottom:20px;display:flex}.logs-filters label{color:#66796f;gap:7px;font-size:12px;display:grid}.logs-filters>span{color:#74837c;margin-left:auto;padding-bottom:10px;font-size:12px}.call-list{gap:10px;display:grid}.call-card{border:1px solid #e0e7e2;border-radius:12px;overflow:hidden}.call-card .call-summary{text-align:left;border:0;border-radius:0;grid-template-columns:1.4fr 1fr 100px 140px 16px;align-items:center;gap:18px;width:100%;padding:20px;display:grid}.call-summary:hover{background:#f8faf8}.call-title,.call-model,.call-metrics{overflow-wrap:anywhere;min-width:0}.call-title strong{font-size:14px;font-weight:600}.call-title time,.call-model small,.call-metrics small{color:#849087;margin-top:6px;font-size:11px;display:block}.call-status{text-transform:capitalize;background:#f0f2f1;border-radius:6px;justify-self:start;padding:5px 8px;font-size:11px}.status-completed{color:#386744;background:#eaf4ec}.status-failed{color:#a04434;background:#fbefed}.status-pending,.status-incomplete{color:#876722;background:#faf3e3}.call-metrics>span{margin-top:4px;font-size:12px;display:block}.call-detail{border-top:1px solid #e6ece8;padding:0 20px 20px}.call-detail dl{flex-wrap:wrap;gap:16px 30px;margin:18px 0;font-size:11px;display:flex}.call-detail dt{color:#859188;margin-bottom:4px}.call-detail dd{overflow-wrap:anywhere;margin:0}.call-payloads{grid-template-columns:1fr 1fr;gap:16px;display:grid}.call-payloads section{min-width:0}.call-payloads h3{font-size:12px;font-weight:500}.call-payloads pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f7f9f7;border:1px solid #e3e9e5;border-radius:8px;max-height:460px;padding:14px;font-size:11px;line-height:1.6;overflow:auto}.logs-empty{text-align:center;color:#738178;border:1px dashed #dce5df;border-radius:12px;padding:80px 20px}.logs-empty h2{color:#3f554a;font-size:18px;font-weight:500}.logs-footer{color:#869188;justify-content:space-between;align-items:center;gap:16px;margin-top:24px;font-size:11px;display:flex}.logs-footer>div{gap:8px;display:flex}@media (width<=650px){.logs-page{padding:24px 14px}.logs-header h1{font-size:27px}.logs-filters{flex-wrap:wrap;gap:12px}.logs-filters label{flex:1}.logs-filters select{width:100%}.logs-filters>span{flex-basis:100%;margin:0;padding:0}.call-card .call-summary{grid-template-columns:1fr auto;gap:12px;padding:16px}.call-model{grid-area:2/1;font-size:12px}.call-status{grid-area:1/2}.call-metrics{grid-area:3/1}.call-summary>span:last-child{grid-area:3/2;justify-self:end}.call-payloads{grid-template-columns:1fr}.call-detail{padding:0 16px 16px}.logs-footer{flex-direction:column;align-items:flex-start}}.sign-in-page{color:#233b35;background:#f7f9f8;flex-direction:column;align-items:center;min-height:100dvh;padding:40px 24px 64px;display:flex}.sign-in-brand{letter-spacing:-.8px;align-items:center;gap:18px;width:100%;max-width:1120px;font-size:25px;font-weight:650;display:flex}.sign-in-brand span{color:#6b7d76;letter-spacing:.2px;border-left:1px solid #d5dfdb;padding-left:18px;font-size:12px;font-weight:400}.sign-in-card{background:#fff;border:1px solid #e0e8e3;border-radius:20px;width:100%;max-width:410px;margin:auto 0;padding:40px;box-shadow:0 12px 48px #23423606}.sign-in-eyebrow{color:#718178;letter-spacing:1.5px;text-transform:uppercase;margin:0 0 12px;font-size:11px;font-weight:600}.sign-in-card h1{letter-spacing:-.8px;margin:0;font-size:28px;font-weight:600}.sign-in-description{color:#748178;margin:12px 0 32px;font-size:14px}.sign-in-card label{margin:20px 0 9px;font-size:13px;font-weight:550;display:block}.sign-in-card input{color:#233b35;width:100%;min-height:46px;font:inherit;background:#fff;border:1px solid #d8e1dc;border-radius:9px;padding:11px 13px;font-size:16px}.sign-in-card input:focus{outline-offset:2px;outline:2px solid #85ab97}.sign-in-password{position:relative}.sign-in-password input{padding-right:66px}.sign-in-password button{color:#637a6f;background:0 0;border:0;border-radius:5px;min-height:34px;padding:6px 10px;font-size:12px;position:absolute;top:6px;right:6px}.sign-in-password button:hover{background:#eff4f1}.sign-in-feedback{min-height:40px;padding:10px 0}.sign-in-feedback p{color:#a23f34;margin:0;font-size:12px;line-height:1.5}.sign-in-submit{color:#fff;background:#28513e;border:1px solid #28513e;border-radius:9px;justify-content:space-between;align-items:center;width:100%;min-height:46px;padding:11px 15px;font-size:14px;font-weight:550;display:flex}.sign-in-submit:hover{background:#1e412f}.sign-in-submit:disabled{opacity:.65}.sign-in-status{color:#61756b;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:100dvh;font-size:14px;display:flex}.sign-in-status button{background:#fff;border:1px solid #d8e1dc;border-radius:8px;padding:9px 16px}.control-panel-account{color:#647482;border-bottom:1px solid #e1e7e9;margin-bottom:3px;padding:8px 12px;font-size:12px;display:block}@media (width<=520px){.sign-in-page{padding:28px 20px 44px}.sign-in-brand{gap:12px;font-size:23px}.sign-in-brand span{padding-left:12px;font-size:11px}.sign-in-card{padding:30px 24px}}