/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer theme,base,components,utilities;@layer learner-base{.fallback-panel{background-color:var(--fallback-tint,var(--fx-a,var(--color-zinc-400)))}@supports (color:color-mix(in lab,red,red)){.fallback-panel{background-color:color-mix(in oklab,var(--fallback-tint,var(--fx-a,var(--color-zinc-400))) 9%,var(--color-zinc-100))}}.fallback-panel{background-image:radial-gradient(var(--color-border) 1px,transparent 1px);color:var(--color-foreground);background-size:20px 20px}.dark .fallback-panel{background-color:var(--fallback-tint,var(--fx-a,var(--color-zinc-400)))}@supports (color:color-mix(in lab,red,red)){.dark .fallback-panel{background-color:color-mix(in oklab,var(--fallback-tint,var(--fx-a,var(--color-zinc-400))) 12%,var(--color-zinc-900))}}.content-hero-page .content-prose .content-document-header{display:none}.learner-course-shell,.learner-course-storefront{min-height:100dvh}.learner-course-shell{--learner-lesson-map-width:5rem;--learner-font-family:var(--font-cal-sans,ui-sans-serif),system-ui,sans-serif;--learner-prose-geometry:0;--learner-control-geometry:0;--learner-heading-geometry:0;--learner-reading-measure:var(--learner-measure-prose,46.5rem);--learner-reader-frame:calc(var(--learner-reading-measure) + 4rem);background:var(--background);font-family:var(--learner-font-family);font-variation-settings:"GEOM" var(--learner-prose-geometry)}.learner-course-storefront{background:var(--course-canvas,var(--background))}.course-cover-theme{background:linear-gradient(110deg,var(--foreground),transparent 42%,var(--foreground))}@supports (color:color-mix(in lab,red,red)){.course-cover-theme{background:linear-gradient(110deg,color-mix(in oklab,var(--foreground) 5%,transparent),transparent 42%,color-mix(in oklab,var(--foreground) 3%,transparent))}}.course-cover-fade{background:linear-gradient(to bottom,transparent,var(--course-canvas,var(--background)))}.learner-study-layout{min-height:calc(100dvh - var(--learner-header-height,0px));background:var(--background)}.learner-study-document[hidden]{display:none}.learner-study-actions{justify-content:flex-end;align-items:center;gap:.5rem;min-width:0;display:flex}.learner-study-primary-tool{width:2rem;height:2rem;box-shadow:none;border:0;padding:0;position:relative}.learner-study-primary-tool-count{border-radius:var(--learner-radius-pill);background:var(--foreground);min-width:1rem;height:1rem;color:var(--background);font-variant-numeric:tabular-nums;place-items:center;padding-inline:.2rem;font-size:.5625rem;line-height:1;display:grid;position:absolute;inset-block-start:-.125rem;inset-inline-end:-.125rem}.learner-study-introduction{grid-template-columns:minmax(0,1fr) minmax(var(--learner-card-min),calc(var(--learner-selection-column) + var(--learner-space-8)));width:min(calc(100% - 2 * var(--learner-page-gutter)),var(--learner-measure-media));margin:var(--learner-space-8) auto var(--learner-space-12);border-radius:var(--learner-radius-surface);background:var(--learner-course-soft);display:grid;position:relative;overflow:hidden}.learner-study-introduction [data-slot=course-context-surface]{padding:var(--learner-space-12);flex-direction:column;grid-area:1/1;justify-content:center;align-items:stretch;display:flex}.learner-study-introduction [data-slot=course-context-copy]{max-inline-size:var(--learner-measure-prose)}.learner-study-position{margin-bottom:var(--learner-space-4);color:var(--muted-foreground);font-size:var(--learner-meta-size);line-height:var(--learner-meta-line)}.learner-course-intro h1{font-size:var(--learner-h1-size);font-weight:680;line-height:var(--learner-h1-line);letter-spacing:-.025em;text-wrap:balance}.learner-study-description{max-width:var(--learner-measure-prose);margin-top:var(--learner-space-4);color:var(--muted-foreground);font-size:var(--learner-body-size);line-height:var(--learner-body-line)}.learner-study-cover{min-height:calc(var(--learner-space-24) * 3);grid-area:1/2;position:relative;overflow:hidden}.learner-study-cover .course-cover-signature{height:100%}.learner-study-attribution{z-index:1;position:absolute;inset-block-end:var(--learner-space-3);inset-inline-end:var(--learner-space-3)}.learner-study-attribution .content-cover-attribution{position:static}.learner-session-overview{width:min(calc(100% - 2 * var(--learner-page-gutter)),var(--learner-measure-wide));padding-bottom:var(--learner-space-16);margin:0 auto}.learner-session-plan-heading{justify-content:space-between;align-items:center;gap:1rem;display:flex}.learner-review-mode h2,.learner-session-plan-heading h2{font-size:var(--learner-h3-size);font-weight:600;line-height:var(--learner-h3-line)}.learner-session-plan-heading>span{color:var(--muted-foreground);font-size:var(--learner-meta-size);line-height:var(--learner-meta-line);font-variant-numeric:tabular-nums}.learner-session-progress{margin-block:var(--learner-space-6);gap:0}.learner-session-progress [data-slot=progress-track]{height:var(--learner-space-1);background:var(--muted)}.learner-session-progress [data-slot=progress-indicator]{background:var(--course-accent,var(--primary));transition:transform var(--learner-motion-trace) var(--learner-motion-ease)}.learner-session-plan ol{flex-direction:column;gap:.375rem;display:flex}.learner-session-plan li{align-items:center;gap:var(--learner-space-3);min-height:var(--learner-control-hit);padding-block:var(--learner-space-4);border-bottom:var(--learner-line-width) solid var(--border);display:flex}.learner-session-plan li[data-state=current]{color:var(--foreground)}.learner-session-step-number{width:var(--learner-space-8);height:var(--learner-space-8);border-radius:var(--learner-radius-pill);background:var(--muted);color:var(--muted-foreground);font-size:var(--learner-meta-size);line-height:var(--learner-meta-line);flex-shrink:0;place-items:center;display:grid}.learner-session-step-number svg,.learner-session-step-state svg{width:1rem;height:1rem}.learner-session-plan li[data-state=completed] .learner-session-step-number{color:var(--success);background:var(--success)}@supports (color:color-mix(in lab,red,red)){.learner-session-plan li[data-state=completed] .learner-session-step-number{background:color-mix(in oklab,var(--success) 10%,transparent)}}.learner-session-plan li[data-state=current] .learner-session-step-number{background:var(--course-accent)}@supports (color:color-mix(in lab,red,red)){.learner-session-plan li[data-state=current] .learner-session-step-number{background:color-mix(in oklab,var(--course-accent) 10%,transparent)}}.learner-session-plan li[data-state=current] .learner-session-step-number{color:var(--course-accent)}.learner-session-step-state{color:var(--muted-foreground);font-size:var(--learner-meta-size);line-height:var(--learner-meta-line);margin-left:auto}.learner-session-resume{align-items:flex-start;gap:var(--learner-space-3);margin-top:var(--learner-space-8);flex-direction:column;display:flex}.learner-session-resume button{min-height:var(--learner-control-hit)}.learner-session-resume-controls{align-items:center;gap:var(--learner-space-2);flex-wrap:wrap;display:flex}.learner-course-shell:is([data-study-state=reading],[data-overview-reader=true]) .learner-study-introduction{width:min(100%,var(--learner-reader-frame));padding:var(--learner-space-8) var(--learner-space-8) 0;background:0 0;border-radius:0;flex-direction:column;margin:0 auto;display:flex;overflow:visible}.learner-course-shell:is([data-study-state=reading],[data-overview-reader=true]) .learner-study-introduction [data-slot=course-context-surface]{order:2;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:1rem;padding:0;display:grid;position:relative}.learner-course-shell:is([data-study-state=reading],[data-overview-reader=true]) .learner-study-introduction [data-slot=course-context-copy],.learner-study-frame{min-width:0}.learner-course-shell:is([data-study-state=reading],[data-overview-reader=true]) .learner-study-cover{aspect-ratio:16/9;border-radius:var(--learner-radius-media);min-block-size:0;inline-size:100%;order:1;margin-block-end:var(--learner-space-6)}.learner-course-shell:is([data-study-state=reading],[data-overview-reader=true]) .learner-course-intro h1{font-size:var(--learner-h1-size);line-height:var(--learner-h1-line);letter-spacing:-.025em}.learner-course-shell[data-study-state=reading] .learner-study-description{display:block}.learner-course-shell[data-study-state=reading] .learner-study-position{margin-bottom:.5rem;font-size:.75rem}.learner-study-document{min-width:0;min-height:calc(100dvh - var(--learner-header-height,0px));position:relative}.learner-course-shell[data-overview-reader=true] .learner-study-document{min-height:auto}.learner-study-contextual-tool,.learner-study-document>[data-slot=course-reader]{width:min(100%,var(--learner-reader-frame));max-inline-size:var(--learner-reader-frame);margin-inline:auto;padding-inline:2rem}.learner-study-document>[data-slot=course-reader]{scroll-margin-top:calc(var(--learner-header-height,0px) + 5rem);outline:none;padding-top:1rem;padding-bottom:4rem}.learner-study-document>[data-slot=course-reader]:has(>.learner-study-continuation){padding-bottom:0}.learner-study-continuation{z-index:1;margin-top:var(--learner-space-4);padding-bottom:var(--learner-space-12);background:0 0;border:0;position:relative}.learner-study-continuation>.learner-component{border-top:0;margin-block:0;padding-block:1.25rem}.learner-study-continuation:has([data-testid=learner-milestone]){position:static}.learner-outline-children{border-left:1px solid var(--border);margin-left:.75rem;padding:.375rem 0 .375rem .625rem}.learner-course-shell[data-has-lesson-map=true] .learner-lesson-map{top:var(--learner-header-height,0);z-index:40;width:var(--learner-lesson-map-width);bottom:0;display:block;position:fixed;inset-inline-start:0}.learner-lesson-map-panel{width:var(--learner-lesson-map-width,5rem);height:100%;max-height:100%;color:var(--muted-foreground);background:0 0;flex-direction:column;padding:.75rem .5rem 1rem;display:flex;position:absolute;inset:0 auto auto 0;overflow:visible}.learner-lesson-map-search{flex:none;align-items:center;width:4rem;min-height:2.75rem;padding-inline:.125rem;display:flex;position:relative;overflow:visible}.learner-lesson-map-search [data-slot=input-group]{z-index:2;border-color:var(--border);width:min(18rem,100vw - 1rem);height:2.5rem;position:absolute;inset-block-start:.125rem;inset-inline-start:.5rem}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-search [data-slot=input-group]{border-color:color-mix(in oklab,var(--border) 82%,transparent)}}.learner-lesson-map-search [data-slot=input-group]{background:var(--popover)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-search [data-slot=input-group]{background:color-mix(in oklab,var(--popover) 94%,transparent)}}.learner-lesson-map-search [data-slot=input-group]{box-shadow:none;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.learner-lesson-map-search-trigger[data-slot=button]{border-radius:var(--learner-radius-pill);width:2.75rem;height:2.75rem;box-shadow:none;background:0 0;border:0;position:relative}.learner-lesson-map-search-trigger[data-slot=button]:focus-visible,.learner-lesson-map-search-trigger[data-slot=button]:hover{background:var(--muted);color:var(--foreground)}.learner-lesson-map ol{flex-direction:column;flex:auto;gap:0;min-height:0;margin:.5rem 0 0;padding:0;list-style:none;display:flex;overflow:clip}.learner-lesson-map li{--lesson-map-indent:1rem;--lesson-map-line:.875rem;--lesson-map-weight:.125rem;flex:0 1.5rem;align-items:center;min-width:0;min-height:0;display:flex}.learner-lesson-map li[data-kind=root]{--lesson-map-line:1.625rem}.learner-lesson-map li[data-kind=content]{--lesson-map-line:1.25rem}.learner-lesson-map li[data-kind=content][data-density=medium]{--lesson-map-line:1.375rem}.learner-lesson-map li[data-kind=content][data-density=high]{--lesson-map-line:1.5rem}.learner-lesson-map li[data-state=current]{--lesson-map-line:2.5rem}.learner-lesson-map li:has(+li+li+li .learner-lesson-map-item:focus-visible),.learner-lesson-map li:has(+li+li+li:is(:hover,[data-scrubbed=true])),.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible)+li+li+li,.learner-lesson-map li:is(:hover,[data-scrubbed=true])+li+li+li{--lesson-map-line:1.125rem}.learner-lesson-map li:has(+li+li .learner-lesson-map-item:focus-visible),.learner-lesson-map li:has(+li+li:is(:hover,[data-scrubbed=true])),.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible)+li+li,.learner-lesson-map li:is(:hover,[data-scrubbed=true])+li+li{--lesson-map-line:1.625rem}.learner-lesson-map li:has(+li .learner-lesson-map-item:focus-visible),.learner-lesson-map li:has(+li:is(:hover,[data-scrubbed=true])),.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible)+li,.learner-lesson-map li:is(:hover,[data-scrubbed=true])+li{--lesson-map-line:2.25rem}.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible),.learner-lesson-map li:is(:hover,[data-scrubbed=true]){--lesson-map-line:3rem}.learner-lesson-map .learner-lesson-map-item{justify-content:start;align-items:center;gap:var(--learner-space-2);width:100%;height:100%;min-height:0;max-height:1.5rem;color:inherit;text-align:left;box-shadow:none;background:0 0;border:0;border-radius:.5rem;grid-template-columns:3.5rem;padding:0;display:grid;position:relative}.learner-lesson-map .learner-lesson-map-item:hover{color:var(--foreground)}.learner-lesson-map .learner-lesson-map-item[aria-disabled=true]{cursor:not-allowed}.learner-lesson-map .learner-lesson-map-item:focus-visible{box-shadow:none;background:0 0;outline:none}.learner-lesson-map-trace{--lesson-map-trace-color:var(--muted-foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-trace{--lesson-map-trace-color:color-mix(in oklab,var(--muted-foreground) 48%,transparent)}}.learner-lesson-map-trace{width:var(--lesson-map-line);height:var(--lesson-map-weight);border-radius:var(--learner-radius-pill);background:var(--lesson-map-trace-color);transition:width .16s var(--learner-motion-ease),background-color .16s var(--learner-motion-ease),opacity .16s var(--learner-motion-ease);margin-inline-start:var(--lesson-map-indent);display:block;position:relative}.learner-lesson-map li[data-nested=true] .learner-lesson-map-trace{width:calc(var(--lesson-map-line) - .25rem);margin-inline-start:calc(var(--lesson-map-indent) + .25rem)}.learner-lesson-map li[data-state=completed] .learner-lesson-map-trace{--lesson-map-trace-color:var(--foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map li[data-state=completed] .learner-lesson-map-trace{--lesson-map-trace-color:color-mix(in oklab,var(--foreground) 58%,transparent)}}.learner-lesson-map li[data-next=true] .learner-lesson-map-trace{--lesson-map-trace-color:var(--foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map li[data-next=true] .learner-lesson-map-trace{--lesson-map-trace-color:color-mix(in oklab,var(--foreground) 66%,transparent)}}.learner-lesson-map li[data-needs-review=true] .learner-lesson-map-trace{--lesson-map-trace-color:var(--foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map li[data-needs-review=true] .learner-lesson-map-trace{--lesson-map-trace-color:color-mix(in oklab,var(--foreground) 76%,transparent)}}.learner-lesson-map li[data-state=current] .learner-lesson-map-trace{--lesson-map-trace-color:var(--course-accent,var(--foreground));box-shadow:none}.learner-lesson-map li[data-state=locked] .learner-lesson-map-trace{opacity:.32}.learner-lesson-map li:not([data-state=current]) .learner-lesson-map-item:focus-visible .learner-lesson-map-trace{--lesson-map-trace-color:var(--foreground);box-shadow:none}.learner-lesson-map-lock-mark,.learner-lesson-map-note-dot{border-radius:var(--learner-radius-pill);transition:inset-inline-start .16s var(--learner-motion-ease),opacity .16s var(--learner-motion-ease);position:absolute;inset-block-start:50%;inset-inline-start:calc(var(--lesson-map-indent) + var(--lesson-map-line) + .375rem);transform:translateY(-50%)}.learner-lesson-map-lock-mark{width:.5625rem;height:.5625rem;color:var(--muted-foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-lock-mark{color:color-mix(in oklab,var(--muted-foreground) 64%,transparent)}}.learner-lesson-map li:has(.learner-lesson-map-note-dot) .learner-lesson-map-lock-mark{inset-inline-start:calc(var(--lesson-map-indent) + var(--lesson-map-line) + 1.125rem)}.learner-lesson-map-note-dot{box-sizing:border-box;border:1px solid var(--muted-foreground);width:.375rem;height:.375rem}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-note-dot{border:1px solid color-mix(in oklab,var(--muted-foreground) 76%,transparent)}}.learner-lesson-map-note-dot{opacity:.9;transition:inset-inline-start .16s var(--learner-motion-ease),border-color .16s var(--learner-motion-ease),background-color .16s var(--learner-motion-ease),opacity .16s var(--learner-motion-ease);background:0 0}.learner-lesson-map li[data-state=current] .learner-lesson-map-note-dot{border-color:var(--course-accent,var(--foreground))}.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible) .learner-lesson-map-note-dot,.learner-lesson-map li:is(:hover,[data-scrubbed=true]) .learner-lesson-map-note-dot{background:var(--muted-foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible) .learner-lesson-map-note-dot,.learner-lesson-map li:is(:hover,[data-scrubbed=true]) .learner-lesson-map-note-dot{background:color-mix(in oklab,var(--muted-foreground) 72%,transparent)}}.learner-lesson-map li:has(.learner-lesson-map-item:focus-visible) .learner-lesson-map-note-dot,.learner-lesson-map li:is(:hover,[data-scrubbed=true]) .learner-lesson-map-note-dot{opacity:1}.learner-lesson-map li[data-state=current]:has(.learner-lesson-map-item:focus-visible) .learner-lesson-map-note-dot,.learner-lesson-map li[data-state=current]:is(:hover,[data-scrubbed=true]) .learner-lesson-map-note-dot{background:var(--course-accent,var(--foreground))}.learner-lesson-map-preview[data-slot=preview-card-content]{border-color:var(--foreground);width:min(19rem,100vw - 6.5rem);max-width:19rem}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-preview[data-slot=preview-card-content]{border-color:color-mix(in oklab,var(--foreground) 16%,transparent)}}.learner-lesson-map-preview[data-slot=preview-card-content]{background:var(--popover)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-preview[data-slot=preview-card-content]{background:color-mix(in oklab,var(--popover) 72%,transparent)}}.learner-lesson-map-preview[data-slot=preview-card-content]{box-shadow:none;text-transform:none;-webkit-backdrop-filter:blur(28px)saturate(124%);backdrop-filter:blur(28px)saturate(124%)}.learner-lesson-map-preview-content{flex-direction:column;gap:.625rem;min-width:0;display:flex}.learner-lesson-map-preview-meta{justify-content:space-between;align-items:center;gap:.625rem;min-width:0;display:flex}.learner-lesson-map-preview-meta>span:last-child{color:var(--muted-foreground);white-space:nowrap;align-items:center;gap:.3rem;font-size:.6875rem;line-height:1rem;display:inline-flex}.learner-lesson-map-preview-meta>span:first-child{color:var(--muted-foreground);text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:.375rem;font-size:.625rem;font-weight:600;line-height:.875rem;display:inline-flex;overflow:hidden}.learner-lesson-map-preview-meta>span:first-child>svg{flex:none;width:.8125rem;height:.8125rem}.learner-lesson-map-preview-meta i{border-radius:var(--learner-radius-pill);background:var(--muted-foreground);width:.375rem;height:.375rem}.learner-lesson-map-preview-meta [data-state=completed] i{background:var(--foreground)}@supports (color:color-mix(in lab,red,red)){.learner-lesson-map-preview-meta [data-state=completed] i{background:color-mix(in oklab,var(--foreground) 58%,transparent)}}.learner-lesson-map-preview-meta [data-state=current] i{background:var(--course-accent,var(--foreground))}.learner-lesson-map-preview-meta [data-state=locked] i{opacity:.45}.learner-lesson-map-preview-content>strong{color:var(--foreground);text-wrap:balance;font-size:.9375rem;font-weight:600;line-height:1.25rem}.learner-lesson-map-preview-parent{color:var(--muted-foreground);text-overflow:ellipsis;white-space:nowrap;font-size:.75rem;line-height:1rem;overflow:hidden}.learner-lesson-map-preview-progress{flex-direction:column;gap:.375rem;padding-top:.125rem;display:flex}.learner-lesson-map-preview-progress [data-slot=progress]{gap:0}.learner-lesson-map-preview-progress [data-slot=progress-track]{height:.1875rem}.learner-lesson-map-preview-progress [data-slot=progress-indicator]{background:var(--course-accent,var(--primary))}.learner-lesson-map-preview-notes,.learner-lesson-map-preview-progress>span,.learner-lesson-map-preview-review{color:var(--muted-foreground);font-size:.6875rem;line-height:1rem}.learner-lesson-map-preview-notes,.learner-lesson-map-preview-review{align-items:center;gap:.375rem;padding-top:.125rem;display:inline-flex}.learner-lesson-map-preview-notes svg,.learner-lesson-map-preview-review svg{width:.75rem;height:.75rem;color:var(--warning,var(--course-accent,var(--primary)))}.learner-lesson-map-preview-review svg{color:var(--muted-foreground)}.learner-lesson-map-scrub-preview{display:none}.learner-lesson-map-empty{z-index:2;width:min(18rem,100vw - 1rem);padding:var(--learner-space-3);border:1px solid 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