body{background:var(--learn-paper)}.learning-loading{background:var(--learn-paper);min-height:100vh;color:var(--learn-ink);letter-spacing:-1px;flex-direction:column;justify-content:center;align-items:center;font-size:30px;display:flex}.learning-loading span{letter-spacing:1px;color:var(--learn-muted);margin-top:12px;font-size:13px}.learning-app{background:var(--learn-paper);color:var(--learn-ink);--tbc-text:var(--learn-ink);--tbc-text-secondary:var(--learn-muted);--color-text:var(--learn-ink);min-height:100vh;font-family:Geist,Arial,sans-serif;font-size:14px;line-height:1.6}.learning-app *{box-sizing:border-box}.learning-app h1,.learning-app h2,.learning-app h3,.learning-app h4,.learning-app p{margin:0}.learning-app a{color:inherit;text-decoration:none}.learning-app button,.learning-app input,.learning-app textarea,.learning-app select{font:inherit;letter-spacing:normal}.learning-app button{cursor:pointer}.learning-app button:disabled{cursor:not-allowed;opacity:.45}.learning-app a:focus-visible,.learning-app button:focus-visible,.learning-app input:focus-visible,.learning-app textarea:focus-visible,.learning-app select:focus-visible,.learning-app summary:focus-visible{outline:3px solid var(--learn-action);outline-offset:4px}.learning-app .eyebrow{letter-spacing:1.2px;text-transform:uppercase;color:var(--learn-muted);font-size:10px;font-weight:600;line-height:1.5}.learning-sidebar{border-right:1px solid var(--learn-line);background:var(--learn-paper);z-index:20;flex-direction:column;width:225px;padding:36px 23px 26px;display:flex;position:fixed;inset:0 auto 0 0}.learning-brand{letter-spacing:-1.2px;align-items:flex-start;gap:10px;margin-bottom:53px;font-size:26px;font-weight:650;line-height:1;display:flex}.learning-brand img{color:var(--learn-action);flex-shrink:0}.brand-caption{letter-spacing:1.25px;color:var(--learn-muted);margin-top:9px;font-size:8px;font-weight:500;display:block}.learning-sidebar nav{gap:5px;display:grid}.learning-sidebar nav a{color:var(--learn-muted);border-radius:5px;align-items:center;gap:11px;padding:11px 13px;font-size:13px;display:flex}.learning-sidebar nav a[aria-current=page]{background:var(--learn-selected);color:var(--learn-ink);font-weight:600}.learning-sidebar nav a:hover{background:var(--learn-inset)}.nav-count{margin-left:auto;font-size:10px}.sidebar-chapters{border-top:1px solid var(--learn-line);margin-top:32px;padding-top:25px}.sidebar-chapters>.eyebrow{letter-spacing:1px;margin:0 0 17px 10px;font-size:8px}.sidebar-chapters a{color:var(--learn-muted);align-items:center;gap:9px;padding:9px 10px;font-size:11px;display:flex}.topic-dot{border-radius:50%;width:7px;height:7px;display:inline-block}.dot-0{background:var(--learn-language-marker)}.dot-1{background:var(--learn-image-marker)}.dot-2{background:var(--learn-agent-marker)}.sidebar-bottom{margin-top:auto;padding:36px 10px 0}.sidebar-bottom p{font-family:var(--font-sans);color:var(--learn-muted);margin-bottom:24px;font-size:18px;font-style:italic;line-height:1.4}.sidebar-bottom a{border-top:1px solid var(--learn-line);justify-content:space-between;padding:19px 0 5px;font-size:13px;font-weight:600;display:flex}.sidebar-bottom>span{letter-spacing:.9px;color:var(--learn-muted);font-size:7px}.learning-body{margin-left:225px}.learning-topbar{border-bottom:1px solid var(--learn-line);justify-content:space-between;align-items:center;height:84px;padding:0 48px;display:flex}.topbar-slash{color:var(--learn-muted);margin:0 16px}.learning-app .topbar-title{letter-spacing:0;text-transform:none;font-size:11px;font-weight:400}.learning-main{max-width:1390px;margin:auto;padding:52px 48px 65px}.learning-footer{border-top:1px solid var(--learn-line);color:var(--learn-muted);justify-content:space-between;margin:0 48px;padding:22px 0 26px;font-size:10px;display:flex}.learning-footer a{align-items:center;gap:8px;display:flex}.learning-skip{background:var(--learn-ink);z-index:100;padding:14px;position:fixed;top:-100px;left:240px;color:var(--learn-paper)!important}.learning-skip:focus{top:12px}.learning-app .text-button{box-shadow:none;color:var(--learn-ink);background:0 0;border:0;align-items:center;gap:9px;padding:0;font-size:11px;display:inline-flex}.learning-app .learning-button{background:var(--learn-action);color:var(--learn-on-action);border:1px solid var(--learn-action);box-shadow:none;border-radius:4px;justify-content:center;align-items:center;gap:24px;padding:13px 20px;font-size:12px;font-weight:550;line-height:1.5;transition:background .15s,transform .15s;display:inline-flex}.learning-app .learning-button:hover{background:var(--learn-action-hover);transform:translateY(-1px)}.learning-app .inline-link{align-items:center;gap:10px;font-size:11px;font-weight:550;display:inline-flex}.learning-app .inline-link:hover{text-underline-offset:4px;text-decoration:underline}.display-emphasis{font-family:var(--font-sans);font-style:italic;font-weight:400}.learning-app h1{letter-spacing:-2.9px;font-size:58px;font-weight:500;line-height:1.07}.learning-app h2{letter-spacing:-.6px;font-size:23px;font-weight:500;line-height:1.3}.learning-app h3{letter-spacing:-.4px;font-size:20px;font-weight:500;line-height:1.3}.learning-app .muted{color:var(--learn-muted);font-size:11px}.home-hero{grid-template-columns:1.12fr 1fr;align-items:center;gap:52px;padding:14px 0 56px;display:grid}.hero-copy>.eyebrow{align-items:center;gap:9px;margin-bottom:24px;display:flex}.tiny-spark{color:var(--learn-action);font-size:21px;line-height:1}.hero-copy h1{margin-bottom:24px;font-size:64px}.hero-description{color:var(--learn-muted);font-size:13px;line-height:1.85;margin-bottom:25px!important}.hero-caption{color:var(--learn-muted);margin-top:13px;font-size:9px;display:block}.hero-experiment{background:var(--learn-raised);border:1px solid var(--learn-line);box-shadow:0 6px 0 -3px var(--learn-inset), 0 9px 0 -4px var(--learn-line);border-radius:7px;padding:20px 25px 17px;display:block;position:relative;transform:rotate(1.2deg);transition:transform .2s!important}.hero-experiment:hover{transform:rotate(0)}.figure-heading{letter-spacing:1px;color:var(--learn-muted);justify-content:space-between;align-items:center;font-size:7px;display:flex}.hero-phrase{letter-spacing:-1.1px;margin:25px 0 23px;font-size:38px;font-weight:500;line-height:1.3}.blank-word{background:var(--learn-highlight);border-radius:3px;margin-left:5px;padding:0 18px;display:inline-block;transform:rotate(-4deg)}.phrase-cursor{background:var(--learn-inset);vertical-align:middle;width:1px;height:32px;margin-left:10px;display:inline-block}.hero-probabilities{gap:9px;display:grid}.hero-probabilities>div{grid-template-columns:40px 1fr 30px;align-items:center;gap:12px;font-size:10px;display:grid}.hero-probabilities>div>div{background:var(--learn-inset);border-radius:2px;height:15px;overflow:hidden}.hero-probabilities>div>div>span{background:var(--learn-chart-secondary);height:100%;display:block}.hero-probabilities .prob-highlight{background:var(--learn-chart)}.figure-caption{border-top:1px solid var(--learn-line);color:var(--learn-muted);margin-top:20px;padding:16px 0 0 16px;font-size:9px;line-height:1.8;position:relative}.figure-dot{background:var(--learn-inset);border-radius:50%;width:5px;height:5px;position:absolute;top:21px;left:0}.figure-label{letter-spacing:1px;color:var(--learn-muted);text-align:right;margin-top:11px;font-size:6px;display:block}.section-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px;display:flex}.section-heading .eyebrow{margin-bottom:8px}.chapter-section{border-top:1px solid var(--learn-line);padding-top:32px}.chapter-grid{grid-template-columns:repeat(3,1fr);gap:17px;display:grid}.chapter-card{border:1px solid var(--learn-line);border-radius:5px;flex-direction:column;padding:19px 22px 15px;display:flex;transition:transform .18s!important}.chapter-card:hover{transform:translateY(-4px)}.chapter-language{background:var(--learn-language)}.chapter-images{background:var(--learn-images)}.chapter-agents{background:var(--learn-agents)}.chapter-number{font-family:var(--font-sans);color:var(--learn-muted);justify-content:space-between;font-size:13px;display:flex}.chapter-card svg:not(.lucide){width:100%;height:140px;margin:7px 0 14px;font-family:Geist,Arial,sans-serif;font-size:11px;overflow:visible}.chapter-card h3{margin-bottom:9px;font-size:19px}.chapter-card>p{color:var(--learn-muted);max-width:215px;margin-bottom:22px;font-size:11px;line-height:1.8}.chapter-meta{border-top:1px solid var(--learn-line);justify-content:space-between;align-items:center;margin-top:auto;padding-top:13px;font-size:9px;display:flex}.home-bottom{grid-template-columns:1.5fr 1fr;gap:40px;margin-top:45px;display:grid}.learning-path .section-heading{margin-bottom:10px}.learning-path h2{font-size:21px}.progress-label{color:var(--learn-muted);white-space:nowrap;font-size:9px}.learning-path>p{color:var(--learn-muted);margin-bottom:23px;font-size:11px}.path-list{border-top:1px solid var(--learn-line)}.path-list a{border-bottom:1px solid var(--learn-line);align-items:center;gap:13px;padding:14px 0;font-size:11px;display:flex}.path-list a:hover{color:var(--learn-action)}.path-number{border:1px solid var(--learn-line);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:9px;display:flex}.path-time{color:var(--learn-muted);white-space:nowrap;margin-left:auto;font-size:9px}.path-number.is-complete{background:var(--learn-agents)}.field-note{background:var(--learn-inset);border:1px solid var(--learn-line);border-radius:4px;padding:26px 28px}.note-asterisk{color:var(--learn-action);margin:25px 0 18px;font-size:52px;line-height:1;display:block}.field-note h2{font-family:var(--font-sans);letter-spacing:-.6px;font-size:27px;font-weight:400}.field-note>p:not(.eyebrow){color:var(--learn-muted);margin:15px 0 25px;font-size:11px;line-height:1.9}.page-heading{margin:8px 0 37px}.page-heading .eyebrow,.page-heading h1{margin-bottom:22px}.page-heading>p:last-child{color:var(--learn-muted);font-size:14px;line-height:1.8}.learning-filters{gap:8px;margin-bottom:26px;display:flex}.learning-filters a{border:1px solid var(--learn-line);border-radius:30px;gap:10px;padding:8px 18px;font-size:12px;display:flex}.learning-filters a[aria-current=page]{background:var(--learn-ink);color:var(--learn-paper);border-color:var(--learn-ink)}.learning-filters a span{opacity:.65}.experiment-list{gap:14px;display:grid}.experiment-row{border:1px solid var(--learn-line);border-radius:5px;align-items:center;gap:30px;padding:30px;display:flex;transition:background .15s!important}.experiment-row:hover{background:var(--learn-inset)}.experiment-big-number{font-family:var(--font-sans);color:var(--learn-muted);min-width:60px;font-size:42px}.experiment-row h2{margin:9px 0;font-size:26px}.experiment-row p:last-child{color:var(--learn-muted);max-width:630px;font-size:12px}.row-status{white-space:nowrap;align-items:center;gap:5px;margin-left:auto;font-size:10px;display:flex}.learning-callout{background:var(--learn-inset);justify-content:space-between;gap:20px;margin-top:35px;padding:22px 26px;display:flex}.learning-callout p{font-size:13px}.guide-search{border-bottom:1px solid var(--learn-line);align-items:center;gap:16px;margin-bottom:25px;padding:8px 0;display:flex}.learning-app .guide-search input{color:var(--learn-ink);width:100%;box-shadow:none;background:0 0;border:0;padding:12px 0;font-size:18px}.glossary-grid{grid-template-columns:repeat(2,1fr);gap:22px;margin-top:18px;display:grid}.glossary-grid article{border-top:1px solid var(--learn-line);padding:23px 0 20px}.glossary-grid h2{margin:10px 0;font-size:27px}.glossary-grid p{color:var(--learn-muted);max-width:95%;margin-bottom:18px;font-size:13px}.learning-empty{text-align:center;background:var(--learn-inset);border:1px dashed var(--learn-line);border-radius:6px;margin-top:25px;padding:75px 20px}.learning-empty>svg{color:var(--learn-muted);margin:0 auto 20px}.learning-empty h2{margin-bottom:15px;font-size:27px}.learning-empty p{color:var(--learn-muted);margin-bottom:24px;font-size:13px}.notebook-toolbar{border-top:1px solid var(--learn-line);border-bottom:1px solid var(--learn-line);color:var(--learn-muted);justify-content:space-between;align-items:center;padding:15px 0;font-size:12px;display:flex}.learning-app button:not(.learning-button):not(.text-button):not([role]){background:var(--learn-raised);border:1px solid var(--learn-line);color:var(--learn-ink);box-shadow:none;border-radius:4px;justify-content:center;align-items:center;gap:8px;padding:9px 13px;font-size:12px;display:inline-flex}.learning-app button:not(.learning-button):hover{background:var(--learn-selected)}.notebook-grid{grid-template-columns:repeat(2,1fr);gap:22px;margin-top:25px;display:grid}.notebook-grid article{background:var(--learn-inset);border:1px solid var(--learn-line);padding:26px}.notebook-grid h2{margin:12px 0 20px;font-size:21px}.note-text{white-space:pre-wrap;overflow-wrap:anywhere}.notebook-grid article>p{margin-bottom:25px;font-size:13px}.notebook-grid article>div:last-child{justify-content:space-between;align-items:center;gap:10px;display:flex}.notebook-reset{margin-top:40px}.notebook-reset p{margin-bottom:15px;font-size:13px}.notebook-reset button+button{margin-left:10px}.learning-alert{border:1px solid var(--learn-danger-border);background:var(--learn-danger-bg);color:var(--learn-danger);padding:15px;font-size:12px;margin:15px 0!important}.back-link{margin-bottom:27px}.lesson-heading{border-bottom:1px solid var(--learn-line);align-items:flex-start;gap:20px;margin-bottom:38px;padding-bottom:32px;display:flex}.lesson-heading h1{letter-spacing:-1.7px;max-width:750px;margin:18px 0;font-size:43px}.lesson-heading>div>p:last-child{color:var(--learn-muted);max-width:700px;font-size:14px}.lesson-kind{white-space:nowrap;background:var(--learn-inset);border-radius:3px;align-items:center;gap:6px;margin-left:auto;padding:6px 10px;font-size:9px;display:flex}.lesson-layout{grid-template-columns:minmax(0,1fr) 190px;gap:36px;display:grid}.lesson-section{border-bottom:1px solid var(--learn-line);margin-bottom:45px;padding-bottom:36px}.step-heading{align-items:flex-start;gap:17px;margin-bottom:23px;display:flex}.step-heading>span{font-family:var(--font-sans);color:var(--learn-muted);padding-top:1px;font-size:15px}.step-heading .eyebrow{margin-bottom:8px;font-size:9px}.step-heading h2{max-width:680px;font-size:23px}.prediction-options{border:0;gap:9px;margin:0 0 16px;padding:0;display:grid}.prediction-options label{cursor:pointer;border:1px solid var(--learn-line);background:var(--learn-panel);border-radius:4px;align-items:center;gap:12px;padding:13px 15px;font-size:12px;display:flex}.prediction-options label.selected{border-color:var(--learn-control-border);background:var(--learn-selected)}.learning-app input[type=radio],.learning-app input[type=checkbox]{accent-color:var(--learn-action);width:16px;height:16px;box-shadow:none;flex-shrink:0;margin:0}.interactive-lab{background:var(--learn-raised);border:1px solid var(--learn-line);border-radius:6px;padding:25px}.lab-controls{flex-direction:column;gap:20px;display:flex}.lab-controls label,.live-comparison label{font-size:11px;font-weight:550;display:block}.learning-app .lab-controls input:not([type=range]):not([type=checkbox]),.learning-app .lab-controls select,.learning-app .live-comparison input,.learning-app .live-comparison select,.learning-app textarea{background:var(--learn-panel);width:100%;color:var(--learn-ink);border:1px solid var(--learn-control-border);box-shadow:none;border-radius:4px;margin-top:8px;padding:10px 12px;font-size:12px;display:block}.learning-app input[type=range]{width:100%;height:20px;accent-color:var(--learn-action);box-shadow:none;background:0 0;border:0;margin:12px 0 0;padding:0;display:block}.lab-controls output{float:right;color:var(--learn-success)}.range-captions{color:var(--learn-muted);justify-content:space-between;font-size:9px;font-weight:400;display:flex}.token-lab .lab-controls{grid-template-columns:1fr 1fr;gap:25px;margin-bottom:32px;display:grid}.token-stage{background:var(--learn-panel);border:1px solid var(--learn-line);border-radius:5px;padding:24px}.token-stage h3{margin:18px 0 24px;font-size:24px}.token-stage h3>span{background:var(--learn-highlight);border-radius:3px;padding:2px 8px}.token-bars{gap:12px;margin-bottom:26px;display:grid}.token-bars>div{grid-template-columns:45px 1fr 48px;align-items:center;gap:13px;font-size:12px;display:grid}.token-bars>div>div{background:var(--learn-inset);border-radius:2px;height:20px;overflow:hidden}.token-bars>div>div>span{background:var(--learn-chart);height:100%;transition:width .2s;display:block}.sample-history{color:var(--learn-muted);overflow-wrap:anywhere;min-height:35px;margin-top:16px;font-size:11px}.honesty-note{color:var(--learn-muted);gap:20px;margin-top:16px;font-size:10px;line-height:1.7;display:flex}.honesty-note>span{min-width:95px;font-weight:600}.explanation-section>p{font-size:15px;line-height:1.9}.source-links{color:var(--learn-muted);flex-wrap:wrap;gap:8px;margin-top:22px;font-size:11px;display:flex}.source-links a{text-underline-offset:3px;text-decoration:underline}.lesson-aside{border-left:1px solid var(--learn-line);align-self:start;padding-left:24px;position:sticky;top:35px}.lesson-aside h3{font-family:var(--font-sans);margin:15px 0 24px;font-size:25px;line-height:1.3}.lesson-aside ol{color:var(--learn-muted);gap:15px;margin:0;padding:0;font-size:11px;list-style:none;display:grid}.lesson-aside li:before{content:"";border:1px solid var(--learn-control-border);border-radius:50%;width:9px;height:9px;margin-right:10px;display:inline-block}.lesson-aside li.done:before{background:var(--learn-chart);border-color:var(--learn-chart)}.lesson-aside-divider{border-top:1px solid var(--learn-line);margin:25px 0}.lesson-aside>p:not(.eyebrow){color:var(--learn-muted);margin-bottom:18px;font-size:11px;line-height:1.9}.lesson-aside .inline-link{font-size:10px}.check-feedback{background:var(--learn-warning-bg);border-left:3px solid var(--learn-warning-border);margin:20px 0;padding:20px;font-size:13px}.check-feedback.correct{background:var(--learn-success-bg);border-color:var(--learn-success-border)}.check-feedback p{margin-top:8px}.transfer-section>.muted{margin-top:12px}.reflection-section{gap:18px;display:flex}.reflection-section>svg{flex-shrink:0;margin-top:4px}.reflection-section>div{flex:1}.reflection-section h2{margin-bottom:16px;font-size:20px}.reflection-section textarea{resize:vertical;min-height:100px;margin-bottom:13px}.reflection-section .muted{margin-top:12px}.next-experiment{background:var(--learn-inset);border-radius:4px;justify-content:space-between;align-items:center;gap:20px;margin-top:35px;padding:25px;display:flex}.next-experiment strong{margin-top:9px;font-size:20px;font-weight:500;line-height:1.4;display:block}.two-controls{grid-template-columns:1fr 1fr;display:grid}.prompt-comparison{grid-template-columns:1fr 1fr;gap:16px;margin:25px 0;display:grid}.prompt-comparison>div{border:1px solid var(--learn-line);background:var(--learn-panel);border-radius:4px;min-width:0;padding:20px}.prompt-comparison h3{overflow-wrap:anywhere;margin:16px 0;font-size:18px}.prompt-comparison p:not(.eyebrow){color:var(--learn-muted);font-size:12px;line-height:1.8}.example-response{border-left:3px solid var(--learn-line);background:var(--learn-panel);margin-top:24px;padding:22px}.example-response p:not(.eyebrow){margin-top:12px;font-size:13px}.live-comparison{border-top:1px solid var(--learn-line);margin-top:27px;padding-top:20px}.live-comparison summary{cursor:pointer;font-size:12px;font-weight:600}.live-comparison>p{color:var(--learn-muted);margin:14px 0;font-size:11px}.live-comparison label{margin:18px 0}.image-lab{grid-template-columns:180px 1fr;gap:25px;display:grid}.landscape-illustration{border:1px solid var(--learn-control-border);border-radius:4px;width:100%;margin-bottom:12px}.image-lab>div>p:not(.eyebrow){color:var(--learn-muted);margin:14px 0;font-size:11px;line-height:1.8}.meaning-lab{grid-template-columns:1.15fr 1fr;gap:25px;display:grid}.meaning-map{background-color:var(--learn-panel);background-image:linear-gradient(var(--learn-line) 1px, transparent 1px), linear-gradient(90deg, var(--learn-line) 1px, transparent 1px);border:1px solid var(--learn-line);background-size:24px 24px;border-radius:4px;height:330px;margin-bottom:13px;position:relative}.meaning-point{text-align:center;max-width:75px;color:var(--learn-muted);font-size:8px;line-height:1.3;position:absolute;transform:translate(-50%,-50%)}.meaning-point i{background:var(--learn-chart);border:2px solid var(--learn-panel);border-radius:50%;width:12px;height:12px;margin:0 auto 4px;display:block}.query-point{color:var(--learn-action);text-align:center;font-size:26px;line-height:1;transition:left .15s,top .15s;position:absolute;transform:translate(-50%,-50%)}.query-point>span{background:var(--learn-warning-bg);white-space:nowrap;padding:3px;font-size:8px;display:block}.preset-buttons{flex-wrap:wrap;gap:5px;display:flex}.nearest-list{gap:12px;margin:0;padding:0;font-size:10px;list-style:none;display:grid}.nearest-list li{border-bottom:1px solid var(--learn-line);justify-content:space-between;gap:15px;padding-bottom:8px;display:flex}.nearest-list li>span:last-child{white-space:nowrap;color:var(--learn-muted)}.meaning-lab .lab-controls>p{color:var(--learn-muted);font-size:10px}.agent-lab{grid-template-columns:1fr 1.3fr;gap:25px;display:grid}.agent-lab .lab-controls>p{color:var(--learn-muted);font-size:12px}.permission-toggle{border-bottom:1px solid var(--learn-line);align-items:center;gap:12px;padding:12px 0;display:flex!important}.permission-toggle small{color:var(--learn-muted);margin-top:3px;font-size:9px;font-weight:400;display:block}.agent-trace{background:var(--learn-panel);border:1px solid var(--learn-line);border-radius:4px;padding:23px}.trace-step{gap:12px;margin-bottom:23px;display:flex}.trace-step>span{border:1px solid var(--learn-control-border);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:10px;display:flex}.trace-step h4{margin-bottom:5px;font-size:12px;font-weight:600}.trace-step p{color:var(--learn-muted);font-size:10px;line-height:1.8}.trace-blocked>span,.trace-waiting>span{background:var(--learn-warning-bg);border-color:var(--learn-warning-border)}.trace-done>span{background:var(--learn-success-bg)}.trace-empty{flex-direction:column;justify-content:center;min-height:290px;display:flex}.trace-empty h3{font-family:var(--font-sans);margin:23px 0 14px;font-size:26px}.trace-empty>p:last-child{color:var(--learn-muted);font-size:12px}.agent-trace>.eyebrow{margin-top:20px;font-size:8px}@media (min-width:1600px){.learning-main{padding-top:65px}.home-hero{gap:85px}.hero-copy h1{font-size:78px}.hero-phrase{font-size:47px}.hero-experiment{padding:26px 34px}.chapter-card svg:not(.lucide){height:175px}.chapter-card h3{font-size:23px}.chapter-card>p{max-width:260px;font-size:13px}.hero-description{font-size:15px}.hero-caption,.chapter-meta{font-size:11px}.home-bottom{gap:60px}.path-list a{padding:17px 0;font-size:13px}}@media (max-width:1200px){.learning-sidebar{width:195px;padding:30px 16px}.learning-body{margin-left:195px}.learning-brand{gap:7px;font-size:23px}.learning-brand img{width:27px;height:27px}.brand-caption{font-size:7px}.learning-topbar{padding:0 30px}.learning-main{padding:40px 30px 50px}.learning-footer{margin:0 30px}.home-hero{gap:30px}.hero-copy h1{font-size:51px}.hero-phrase{font-size:32px}.chapter-card{padding:16px}.chapter-card h3{font-size:16px}.chapter-card svg:not(.lucide){height:110px}.lesson-layout{grid-template-columns:minmax(0,1fr)}.lesson-aside{display:none}.home-bottom{gap:25px}.path-time{display:none}}@media (max-width:900px){.learning-sidebar{width:175px;padding:27px 12px}.learning-body{margin-left:175px}.learning-brand{gap:7px;font-size:20px}.learning-brand img{width:25px;height:25px}.brand-caption{font-size:6px}.sidebar-chapters a{font-size:10px}.sidebar-chapters>.eyebrow{font-size:7px}.learning-sidebar nav a{padding:10px;font-size:12px}.home-hero{grid-template-columns:1fr 1fr;gap:22px}.hero-copy h1{font-size:43px}.hero-description{font-size:12px}.hero-copy>.eyebrow{font-size:8px}.hero-experiment{padding:15px}.figure-heading{font-size:6px}.hero-phrase{font-size:29px}.hero-probabilities>div{gap:7px;font-size:9px}.hero-caption{font-size:8px}.chapter-grid{gap:10px}.chapter-card{padding:13px}.chapter-card h3{font-size:16px}.chapter-card>p{font-size:10px}.chapter-card svg:not(.lucide){height:90px}.home-bottom{grid-template-columns:1fr}.field-note{display:none}.learning-app h1{font-size:44px}.section-heading h2{font-size:20px}.section-heading>.inline-link{font-size:9px}.image-lab,.meaning-lab{grid-template-columns:1fr}.image-lab>.lab-controls{grid-template-columns:1fr 1fr;display:grid}.meaning-map{height:360px}.learning-app .learning-button{gap:12px;padding:12px 15px;font-size:11px}.lesson-heading{flex-direction:column}.lesson-kind{margin-left:0}.experiment-row{gap:20px;padding:22px}.experiment-row h2{font-size:23px}.experiment-big-number{min-width:40px;font-size:34px}.page-heading h1{letter-spacing:-2px}}@media (max-width:680px){.learning-sidebar{border-right:0;border-bottom:1px solid var(--learn-line);width:100%;height:auto;padding:21px 20px 12px;display:block;position:relative}.learning-brand{gap:9px;margin-bottom:22px;font-size:26px}.learning-brand img{width:32px;height:32px}.brand-caption{font-size:8px}.learning-sidebar nav{justify-content:space-between;gap:4px;display:flex}.learning-sidebar nav a{gap:6px;padding:8px 7px;font-size:10px}.learning-sidebar nav svg{width:15px;height:15px}.sidebar-chapters,.sidebar-bottom{display:none}.learning-body{margin-left:0}.learning-topbar{height:49px;padding:0 22px}.learning-topbar>.eyebrow{font-size:7px}.topbar-slash{margin:0 8px}.learning-app .topbar-title{font-size:9px}.learning-main{padding:30px 22px 40px}.learning-footer{gap:15px;margin:0 22px;font-size:8px}.learning-footer a{font-size:8px}.learning-skip{left:20px}.home-hero{grid-template-columns:1fr;gap:35px;padding:5px 0 38px}.hero-copy h1{font-size:58px}.hero-copy>.eyebrow{margin-bottom:22px;font-size:9px}.hero-description{font-size:13px}.learning-app .learning-button{padding:13px 18px;font-size:12px}.hero-caption{font-size:9px}.hero-experiment{justify-self:center;width:100%;max-width:390px;padding:21px 26px}.figure-heading{font-size:7px}.hero-phrase{margin:20px 0;font-size:38px}.hero-probabilities>div,.figure-caption{font-size:10px}.chapter-section{padding-top:25px}.section-heading{align-items:flex-start;gap:10px}.section-heading h2{max-width:230px;font-size:23px}.section-heading .eyebrow{font-size:8px}.section-heading>.inline-link{margin-top:26px;font-size:0}.section-heading>.inline-link svg{width:20px;height:20px}.chapter-grid{grid-template-columns:1fr;gap:15px}.chapter-card{-moz-column-gap:14px;grid-template-columns:1fr 1fr;column-gap:14px;padding:18px 23px;display:grid}.chapter-number{grid-column:1/-1}.chapter-card svg:not(.lucide){grid-area:2/2/5;height:115px;margin:auto 0}.chapter-card h3{grid-column:1;margin:15px 0 9px;font-size:21px}.chapter-card>p{grid-column:1;margin-bottom:15px;font-size:11px}.chapter-meta{grid-column:1/-1;margin-top:7px;font-size:10px}.home-bottom{margin-top:32px}.learning-path .section-heading h2{font-size:21px}.path-list a{padding:16px 0;font-size:12px}.path-list a>span:nth-child(2){max-width:260px}.path-list a>svg{flex-shrink:0;margin-left:auto}.path-time{display:none}.progress-label{white-space:nowrap;font-size:8px}.learning-path>p{font-size:11px}.page-heading h1{font-size:45px}.page-heading>p:last-child{font-size:13px}.learning-filters{flex-wrap:wrap;gap:6px}.learning-filters a{padding:7px 14px;font-size:11px}.experiment-row{align-items:flex-start;gap:16px;padding:22px 18px}.experiment-big-number{min-width:27px;font-size:25px}.experiment-row .eyebrow{font-size:8px}.experiment-row h2{margin:12px 0;font-size:23px}.experiment-row p:last-child{font-size:12px}.row-status{font-size:0}.row-status svg{width:17px;height:17px}.learning-callout{flex-direction:column;gap:9px;padding:20px}.glossary-grid,.notebook-grid{grid-template-columns:1fr;gap:15px}.glossary-grid h2{font-size:27px}.learning-empty{padding:45px 18px}.learning-empty h2{font-size:25px}.notebook-toolbar{gap:12px;font-size:10px}.notebook-toolbar button{padding:8px!important;font-size:10px!important}.lesson-heading h1{letter-spacing:-1.2px;font-size:35px}.lesson-heading>div>p:last-child{font-size:13px}.lesson-heading .eyebrow{font-size:9px}.lesson-heading{margin-bottom:29px}.step-heading h2{font-size:22px}.step-heading{gap:12px}.prediction-options label{font-size:12px}.interactive-lab{padding:17px}.token-lab .lab-controls,.two-controls,.prompt-comparison,.agent-lab{grid-template-columns:1fr}.token-stage{padding:18px}.token-stage h3{font-size:23px}.token-stage .eyebrow{font-size:8px}.token-bars>div{grid-template-columns:35px 1fr 45px;gap:8px;font-size:11px}.honesty-note{font-size:10px;display:block}.honesty-note>span{margin-bottom:6px;display:block}.image-lab>.lab-controls{grid-template-columns:1fr}.meaning-map{height:320px}.explanation-section>p{font-size:14px}.reflection-section{gap:10px}.reflection-section h2{font-size:20px}.next-experiment{padding:22px}.next-experiment strong{font-size:20px}.learning-app .guide-search input{font-size:15px}.learning-app .text-button{font-size:10px}.trace-empty{min-height:190px}.learning-main.learning-wide{padding-left:18px;padding-right:18px}}@media (prefers-reduced-motion:reduce){.learning-app *{scroll-behavior:auto!important;transition:none!important;animation:none!important}.hero-experiment,.hero-experiment:hover,.chapter-card:hover,.learning-app .learning-button:hover{transform:none}}.studio-heading{margin-bottom:30px}.studio-heading h1{margin:17px 0;font-size:45px}.studio-heading>p:last-child{color:var(--learn-muted);max-width:730px;font-size:13px}.studio-tabs{border-bottom:1px solid var(--learn-line);flex-wrap:wrap;gap:6px;margin-bottom:18px;padding-bottom:18px;display:flex}.learning-app .studio-tabs button{background:0 0;border-color:#0000;padding:9px 14px}.learning-app .studio-tabs button[aria-current=page]:not([role]){background:var(--learn-ink);color:var(--learn-paper)}.studio-access{align-items:center;gap:10px;margin-bottom:24px;font-size:12px;display:flex}.studio-access>span{color:var(--learn-muted);margin-left:auto;font-size:10px}.studio-workspace{min-width:0}.studio-chat-history{border:1px solid var(--learn-line);background:var(--learn-raised);border-radius:5px;margin-bottom:22px;padding:17px 20px}.studio-chat-history summary{cursor:pointer;font-size:12px}.studio-chat-history .sidebar-history-section{max-width:650px;margin-top:20px}.studio-workspace h2{margin-bottom:15px}.studio-workspace p{margin-bottom:12px}.studio-workspace input:not([type=checkbox]):not([type=radio]):not([type=range]),.studio-workspace select,.studio-workspace textarea{background:var(--learn-panel);border-color:var(--learn-control-border);color:var(--learn-ink)}.studio-workspace [class*=card],.studio-workspace .chat-shell,.studio-workspace .chat-polish-surface,.studio-workspace .model-selector-panel,.studio-workspace .chat-main-panel,.studio-workspace .usage-panel,.studio-workspace .panel,.studio-workspace .system-notice{box-shadow:none;background-image:none}.studio-workspace .chat-main-panel,.studio-workspace .chat-polish-surface,.studio-workspace .chat-shell{background:var(--learn-raised)}.studio-workspace .model-card,.studio-workspace .workbench-card{background:var(--learn-raised);border-color:var(--learn-line)}.studio-workspace .chat-message,.studio-workspace .system-notice{background:var(--learn-inset)}.studio-workspace .chat-composer,.studio-workspace .model-selector-trigger{background:var(--learn-panel)}.studio-workspace .empty-state{background:var(--learn-inset)}.studio-workspace .form-group{margin-bottom:20px}.studio-workspace .form-group>label{margin-bottom:8px;font-size:12px;display:block}.studio-workspace .sidebar-history-button{width:100%;justify-content:flex-start!important}.studio-workspace .sidebar-history-list{max-height:280px;overflow:auto}.studio-workspace [class*=text-cyan]{color:var(--learn-action)}.studio-workspace .system-notice{border-color:var(--learn-control-border)}.auth-shell{background:var(--learn-paper);color:var(--learn-ink)}.auth-card{background:var(--learn-raised);box-shadow:0 10px 35px var(--learn-shadow);border-color:var(--learn-line)}.auth-card__brand-name{color:var(--learn-ink)}.auth-card__intro,.auth-card .system-eyebrow{color:var(--learn-muted)}.auth-card h1{color:var(--learn-ink)}.auth-card input{background:var(--learn-panel);color:var(--learn-ink);border-color:var(--learn-control-border)}.auth-card__logo{box-shadow:none;filter:none}.auth-form__primary{background:var(--learn-action)!important;color:var(--learn-on-action)!important;box-shadow:none!important}@media (max-width:680px){.studio-heading h1{font-size:36px}.studio-tabs{gap:4px}.learning-app .studio-tabs button{padding:8px 11px;font-size:10px}.studio-access{flex-wrap:wrap}.studio-access>span{flex-basis:100%;margin-left:26px}.studio-workspace{overflow-wrap:anywhere}.studio-workspace .chat-header{flex-wrap:wrap}.studio-workspace .chat-main-panel{min-width:0}}.learning-app header{z-index:auto;box-shadow:none;background:0 0;position:static;top:auto}.learning-app .learning-topbar{background:var(--learn-paper);padding:0 48px}.learning-app .lesson-heading,.learning-app .studio-heading{padding-top:0;padding-left:0;padding-right:0}.learning-app .studio-workspace header{padding:0}.auth-card{background:var(--learn-raised)!important}.auth-card__brand{background:0 0}.learning-app .lesson-heading h1{font-size:43px}.learning-app .studio-heading h1{font-size:45px}@media (max-width:1200px){.learning-app .learning-topbar{padding:0 30px}}@media (max-width:680px){.learning-app .learning-topbar{padding:0 22px}.learning-app .lesson-heading h1{font-size:35px}.learning-app .studio-heading h1{font-size:36px}}.studio-workspace .chat-composer{box-shadow:none;border:1px solid var(--learn-line);border-radius:7px}.studio-workspace .composer-toggle-pill{border-radius:4px}.notebook-privacy{margin-top:30px!important}.submitted-prompt{margin:12px 0;font-size:10px}.submitted-prompt summary{font-size:10px;font-weight:400}.submitted-prompt p{padding-top:8px;font-size:10px!important}.learning-sidebar nav a{min-height:44px}.learning-footer{flex-wrap:wrap;align-items:center;gap:12px}.learning-footer .feedback-trigger{background:0 0;border:0;min-height:24px;padding:0;font-size:10px}.learning-footer .feedback-trigger svg{width:13px;height:13px}.lesson-reset{align-items:center;gap:15px;margin:-15px 0 32px;display:flex}.lesson-reset>span{color:var(--learn-muted);font-size:9px}@media (max-width:680px){.lesson-reset{flex-direction:column;align-items:flex-start;gap:7px}}.studio-workspace .audio-workbench__panel,.studio-workspace .launchpad-panel,.studio-workspace .embedding-preview,.studio-workspace .embedding-results,.studio-workspace .embedding-workbench-header,.studio-workspace .launchpad-snippet,.studio-workspace .launchpad-snippet-header,.studio-workspace .launchpad-terminal-bar{background:var(--learn-raised);box-shadow:none;border:1px solid var(--learn-line);border-radius:6px}.studio-workspace .launchpad-runtime-meta,.studio-workspace .embedding-empty-state,.studio-workspace .embedding-empty-state strong,.studio-workspace .embedding-preview h4,.studio-workspace .embedding-results h4{color:var(--learn-ink)}.studio-workspace .embedding-empty-state span{color:var(--learn-muted)}.studio-workspace .launchpad-status-pill.is-warn{color:var(--learn-warning);background:var(--learn-warning-bg);border-color:var(--learn-warning-border)}.studio-workspace .launchpad-status-pill.is-block{color:var(--learn-danger);background:var(--learn-danger-bg);border-color:var(--learn-danger-border)}.studio-workspace .launchpad-status-pill.is-pass{color:var(--learn-success);background:var(--learn-success-bg);border-color:var(--learn-success-border)}.studio-workspace .launchpad-readiness-item{background:var(--learn-panel);border-color:var(--learn-line)}.studio-workspace .launchpad-snippet pre{background:var(--learn-inset);color:var(--learn-ink);border-top:1px solid var(--learn-line)}.studio-workspace .launchpad-panel-heading svg{color:var(--learn-action)}.studio-workspace .embedding-preview,.studio-workspace .embedding-results{color:var(--learn-ink)}.studio-workspace .embedding-step{color:var(--learn-warning)}.learning-app .studio-workspace button[role=switch]{background:var(--learn-switch-track);width:36px;min-width:36px;height:20px;box-shadow:none;border:2px solid #0000;border-radius:20px;justify-content:flex-start;gap:0;padding:0;display:inline-flex}.learning-app .studio-workspace button[role=switch][data-state=checked]{background:var(--learn-action)}.learning-app .studio-workspace button[role=switch]>span{background:var(--learn-switch-thumb);width:16px;height:16px;box-shadow:none;border-radius:50%;flex-shrink:0}.studio-workspace .launchpad-runtime{background:var(--learn-raised);color:var(--learn-ink);border-color:var(--learn-line);box-shadow:none}.studio-workspace .launchpad-runtime.is-active,.studio-workspace .sidebar-history-button.active{background:var(--learn-selected);border-color:var(--learn-control-border)}.learning-app .discovery-buttons{flex-wrap:wrap;align-items:center;gap:12px 20px;display:flex}.learning-app .discovery-buttons button{align-items:center;gap:7px;display:inline-flex}.learning-app .discovery-actions{border-top:1px solid var(--learn-line);margin-top:20px;padding-top:16px}.learning-app .discovery-actions>p{margin-top:12px}.learning-app .discovery-review,.learning-app .studio-handoff,.learning-app .notebook-export{background:var(--learn-inset);border:1px solid var(--learn-line);border-radius:8px;margin:20px 0;padding:24px}.learning-app .discovery-review>*,.learning-app .studio-handoff>*{margin-bottom:14px}.learning-app .discovery-review>:last-child,.learning-app .studio-handoff>:last-child{margin-bottom:0}.learning-app .discovery-review h4{font-size:19px;line-height:1.4}.learning-app .discovery-review label,.learning-app .studio-handoff label,.learning-app .notebook-export label,.learning-app .studio-kept-drafts label{gap:8px;font-size:13px;font-weight:500;display:grid}.learning-app .discovery-review textarea,.learning-app .studio-handoff textarea,.learning-app .studio-handoff select,.learning-app .notebook-export textarea,.learning-app .studio-kept-drafts textarea,.learning-app .own-brief-fields textarea{background:var(--learn-paper);width:100%;min-width:0;color:var(--learn-ink);border:1px solid var(--learn-line);font:inherit;resize:vertical;border-radius:5px;padding:12px}.learning-app .studio-handoff{margin-top:0}.learning-app .studio-handoff h2{letter-spacing:-.5px;font-size:25px}.learning-app .studio-draft-status,.learning-app .studio-kept-drafts{border:1px solid var(--learn-line);border-radius:6px;margin-bottom:18px;padding:16px}.learning-app .studio-kept-drafts>div{margin-top:16px}.learning-app .own-brief-fields{border:0;min-width:0;margin:24px 0;padding:0}.learning-app .own-brief-fields legend{margin-bottom:12px;font-size:21px;font-weight:600}.learning-app .own-brief-fields>label{margin-bottom:16px}.learning-app .own-brief-fields button{margin-bottom:0}.learning-app .selected-brief{margin:0 0 16px}.learning-app .authored-comparison{margin:20px 0 16px}.learning-app .authored-comparison>article{min-width:0;margin:0}.learning-app .authored-comparison h3{margin-top:12px;font-size:22px}.learning-app .authored-comparison .variant-label{margin-top:5px;font-size:12px;font-weight:600}.learning-app .request-preview{margin:16px 0}.learning-app .live-results{margin-top:28px}.learning-app .live-results>p{margin-bottom:12px}.learning-app .live-results .discovery-buttons{flex-direction:column;align-items:flex-start}.learning-app .discovery-list{gap:22px;margin:28px 0 36px;display:grid}.learning-app .discovery-card{border:1px solid var(--learn-line);background:var(--learn-paper);border-radius:8px;min-width:0;padding:28px}.learning-app .discovery-card h2{letter-spacing:-.4px;overflow-wrap:anywhere;margin:12px 0 16px;font-size:23px;line-height:1.4}.learning-app .discovery-card h3{margin:18px 0 8px;font-size:14px}.learning-app .discovery-card details{margin:16px 0 22px}.learning-app .discovery-card details .muted{margin-top:14px}.learning-app .discovery-card .discovery-observation{border-left:2px solid var(--learn-action);padding-left:16px}.learning-app .discovery-delete{border-top:1px solid var(--learn-line);margin-top:20px;padding-top:16px}.learning-app .discovery-delete button{margin:10px 20px 0 0}.learning-app .notebook-export{margin:0 0 24px}.learning-app .notebook-export>p,.learning-app .notebook-export>label{margin-top:14px}.learning-app .notebook-notes>h2{margin-bottom:20px;font-size:24px}.learning-app .notebook-grid h3{margin-top:12px;font-size:21px;line-height:1.4}.learning-app .discovery-review p,.learning-app .live-comparison p,.learning-app .studio-handoff p,.learning-app .studio-kept-drafts p{overflow-wrap:anywhere}.learning-app .discovery-review details p+p{margin-top:14px}.learning-app .discovery-review summary,.learning-app .discovery-card summary,.learning-app .studio-kept-drafts summary{cursor:pointer;font-weight:500}.learning-app .discovery-intro{border:1px solid var(--learn-line);background:var(--learn-inset);border-radius:8px;justify-content:space-between;align-items:center;gap:24px;margin:0 0 48px;padding:24px 28px;display:flex}.learning-app .discovery-intro h2{margin:6px 0;font-size:23px}.learning-app .discovery-intro .inline-link{flex-shrink:0}@media (max-width:720px){.learning-app .discovery-card,.learning-app .discovery-review,.learning-app .studio-handoff,.learning-app .notebook-export{padding:18px}.learning-app .discovery-intro{flex-direction:column;align-items:flex-start;padding:20px}.learning-app .discovery-buttons{gap:16px}.learning-app .authored-comparison{grid-template-columns:1fr}}.studio-workspace .chat-main.has-discovery-context .chat-composer{position:static}.studio-workspace .chat-main.has-handoff>.chat-session-header,.studio-workspace .chat-main.has-handoff>.chat-conversation,.studio-workspace .chat-main.has-handoff>.chat-composer,.studio-workspace .chat-main.has-handoff>.studio-kept-drafts{display:none}.studio-workspace .chat-main.has-handoff{min-height:0}
:root{--brand-cyan:#00f5ff;--brand-ink:#0b0f14;--brand-panel:#0f1720;--brand-raised:#111b26;--brand-hover:#16222f;--brand-text:#e6f7f8;--brand-muted:#98b2b7;--brand-on-cyan:#001317;--learn-paper:#f5f8f8;--learn-panel:#fff;--learn-raised:#edf3f4;--learn-inset:#e4edef;--learn-ink:#142d36;--learn-muted:#506b74;--learn-line:#ccdce0;--learn-control-border:#7b979f;--learn-action:#006a73;--learn-action-hover:#00545d;--learn-on-action:#fff;--learn-highlight:var(--brand-cyan);--learn-on-highlight:var(--brand-on-cyan);--learn-selected:#d5ecee;--learn-language:#e0f2f3;--learn-images:#e6eef8;--learn-agents:#e3f0ec;--learn-language-marker:#007982;--learn-image-marker:#476fa8;--learn-agent-marker:#347a60;--learn-chart:#007982;--learn-chart-secondary:#749ca4;--learn-success:#246346;--learn-success-bg:#e3f1e9;--learn-success-border:#5d9678;--learn-warning:#775010;--learn-warning-bg:#faf0d9;--learn-warning-border:#aa8543;--learn-danger:#a63535;--learn-danger-bg:#f9e8e8;--learn-danger-border:#bb7373;--learn-switch-track:#6b858e;--learn-switch-thumb:#fff;--learn-shadow:#0128410a;--signal-rgb:0 106 115;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:180 18% 97%;--foreground:196 46% 15%;--card:0 0% 100%;--popover:0 0% 100%;--primary:185 100% 23%;--primary-foreground:0 0% 100%;--secondary:187 26% 92%;--muted:187 26% 92%;--muted-foreground:195 18% 38%;--accent:185 38% 88%;--destructive:0 52% 43%;--destructive-foreground:0 0% 100%;--border:194 16% 55%;--input:194 16% 55%;--ring:185 100% 23%}:root[data-theme=dark]{--learn-paper:var(--brand-ink);--learn-panel:var(--brand-panel);--learn-raised:var(--brand-raised);--learn-inset:var(--brand-hover);--learn-ink:var(--brand-text);--learn-muted:var(--brand-muted);--learn-line:#293a48;--learn-control-border:#607e8b;--learn-action:var(--brand-cyan);--learn-action-hover:#5afaff;--learn-on-action:var(--brand-on-cyan);--learn-selected:#12343e;--learn-language:#10292f;--learn-images:#172737;--learn-agents:#152d29;--learn-language-marker:var(--brand-cyan);--learn-image-marker:#85b4ee;--learn-agent-marker:#74d6b1;--learn-chart:var(--brand-cyan);--learn-chart-secondary:#527d89;--learn-success:#74f0a7;--learn-success-bg:#142e25;--learn-success-border:#438c68;--learn-warning:#ffd166;--learn-warning-bg:#302919;--learn-warning-border:#a28a48;--learn-danger:#ffb3b3;--learn-danger-bg:#342125;--learn-danger-border:#b56570;--learn-switch-track:#607e8b;--learn-switch-thumb:var(--brand-ink);--learn-shadow:#0003;--signal-rgb:0 245 255;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--background:213 29% 6%;--foreground:183 56% 94%;--card:212 36% 9%;--popover:212 36% 9%;--primary:182 100% 50%;--primary-foreground:190 100% 5%;--secondary:211 36% 13%;--muted:211 36% 13%;--muted-foreground:190 18% 66%;--accent:195 55% 16%;--destructive:0 100% 85%;--destructive-foreground:213 29% 6%;--border:199 18% 46%;--input:199 18% 46%;--ring:182 100% 50%}:root{--card-foreground:var(--foreground);--popover-foreground:var(--foreground);--secondary-foreground:var(--foreground);--accent-foreground:var(--foreground);--tbc-cyan:var(--learn-action);--tbc-cyan-bright:var(--learn-action);--tbc-cyan-hover:var(--learn-action-hover);--tbc-cyan-contrast:var(--learn-on-action);--tbc-ink:var(--learn-paper);--tbc-surface:var(--learn-panel);--tbc-surface-raised:var(--learn-raised);--tbc-surface-hover:var(--learn-inset);--tbc-border:var(--learn-line);--tbc-text:var(--learn-ink);--tbc-text-dim:var(--learn-ink);--tbc-muted:var(--learn-muted);--tbc-faint:var(--learn-muted);--tbc-success:var(--learn-success);--tbc-warning:var(--learn-warning);--tbc-danger:var(--learn-danger);--tbc-emerald:var(--learn-success);--tbc-sky:var(--learn-image-marker);--color-border-soft:var(--learn-line);--focus-ring:var(--learn-action);--selection-bg:var(--learn-highlight);--accent-ring:var(--learn-control-border);--glow-focus:0 0 0 3px rgb(var(--signal-rgb) / .2);--shadow-sm:0 2px 8px var(--learn-shadow);--shadow-md:0 3px 15px var(--learn-shadow);--shadow-lg:0 6px 25px var(--learn-shadow)}::selection{background:var(--learn-highlight);color:var(--learn-on-highlight)}.learning-app .eyebrow,.brand-caption,.figure-heading,.figure-label,.hero-probabilities,.chapter-number,.experiment-number,.token-bars{font-family:var(--font-mono)}.display-emphasis{color:var(--learn-action)}.blank-word,.token-stage h3>span{color:var(--learn-on-highlight)}.learning-brand img{flex-shrink:0}.learning-topbar-actions{align-items:center;gap:22px;display:flex}.appearance-control{color:var(--learn-muted);align-items:center;gap:7px;display:inline-flex;position:relative}.appearance-control svg{pointer-events:none;flex-shrink:0}.appearance-control select,.learning-app .appearance-control select{background:var(--learn-paper);width:auto;min-height:36px;color:var(--learn-ink);box-shadow:none;font-family:var(--font-sans);cursor:pointer;border:0;border-radius:3px;padding:5px 3px;font-size:11px}.appearance-control select:focus-visible{outline:2px solid var(--learn-action);outline-offset:3px}.appearance-control option{background:var(--learn-panel);color:var(--learn-ink)}.appearance-control .appearance-notice{background:var(--learn-panel);border:1px solid var(--learn-line);z-index:30;width:220px;padding:10px;font-size:11px;position:absolute;top:100%;right:0}.auth-appearance{justify-content:flex-end;margin-bottom:16px;display:flex}.auth-appearance select{background:var(--learn-raised)}@media (max-width:680px){.learning-topbar-actions{gap:14px}.learning-topbar>.eyebrow{max-width:45%}}@media (forced-colors:active){.learning-app .learning-button,.blank-word,.learning-sidebar nav a[aria-current=page]{border:1px solid buttontext}.learning-app .studio-workspace button[role=switch]{border-color:buttontext}.learning-app .studio-workspace button[role=switch]>span{background:buttontext}}