#lms-root{--lms-brand:#8da6ff;--lms-on-brand:#000;--lms-radius:6px;--lms-background:#0c0e12;--lms-surface:#14171d;--lms-text:#edf0f7;--lms-muted:#a6afc0;--lms-border:#343b49;--lms-space:32px;--lms-scale:1;--lms-content-width:1000px;font:calc(0.8rem * var(--lms-scale))/1.65 system-ui,sans-serif;background:var(--lms-background);color:var(--lms-text);min-height:100vh}#lms-root[data-font=serif]{font-family:Georgia,serif}#lms-root *{box-sizing:border-box}#lms-root button,#lms-root input{font:inherit}#lms-root button{cursor:pointer;min-height:44px;padding:9px 14px;border:1px solid var(--lms-border);border-radius:0;background:var(--lms-surface);color:var(--lms-text)}#lms-root button:disabled{cursor:default;opacity:.55}#lms-root :focus-visible{outline:3px solid #b45b0b;outline-offset:4px}#lms-root [tabindex='-1']:focus{outline:none}.lms-skip{position:absolute;left:12px;top:-100px;z-index:20;background:var(--lms-surface);color:var(--lms-text);padding:12px}.lms-skip:focus{top:12px}.lms-header{display:flex;gap:20px;align-items:center;justify-content:space-between;padding:24px var(--lms-space);border-bottom:1px solid var(--lms-border);background:var(--lms-surface)}.lms-header h1{font-weight:750;font-size:calc(clamp(1.2rem,2.4vw,1.8rem) * var(--lms-scale));line-height:1.2;margin:4px 0}.lms-header>button{display:none}.lms-eyebrow{font:700 0.55rem/1.4 system-ui;letter-spacing:.13em;margin:0 0 8px}.lms-tabs{padding:12px var(--lms-space);display:flex;gap:8px;border-bottom:1px solid var(--lms-border)}.lms-tabs button[aria-pressed=true]{background:var(--lms-surface)!important;color:var(--lms-text)!important;border-color:var(--lms-brand)!important}.lms-shell{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:650px}.lms-outline{padding:24px;border-right:1px solid var(--lms-border);background:var(--lms-surface)}.lms-outline>p{font-size:0.7rem;margin-top:0}.lms-outline label{font-size:0.6rem}.lms-outline progress{width:100%;height:8px;accent-color:var(--lms-brand)}.lms-outline ul{list-style:none;padding:0}.lms-outline ul ul{padding-left:12px}.lms-outline summary{font-weight:700;cursor:pointer;padding:12px 0}.lms-outline li>button{width:100%;text-align:left;border-color:transparent!important;margin:4px 0;display:grid;gap:4px}.lms-outline button small{font-size:0.55rem;color:var(--lms-muted)}.lms-outline button[aria-current=page]{border-color:var(--lms-brand)!important;background:color-mix(in srgb,var(--lms-brand) 12%,var(--lms-surface))!important}.lms-main{padding:clamp(20px,4vw,var(--lms-space));max-width:var(--lms-content-width);width:100%;min-width:0}.lms-main h2{font-size:calc(clamp(1.4rem,2.8vw,2rem) * var(--lms-scale));line-height:1.15;margin:10px 0 24px}.lms-main h3{font-size:calc(clamp(1.1rem,2.4vw,1.6rem) * var(--lms-scale));line-height:1.25}.lms-slide{padding:clamp(20px,4vw,48px);border:1px solid var(--lms-border);background:var(--lms-surface);border-radius:var(--lms-radius);min-height:300px}.lms-prose{white-space:pre-wrap;overflow-wrap:anywhere}.lms-muted{font-size:0.65rem;color:var(--lms-muted)}.lms-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}#lms-root .lms-primary{border:3px solid var(--lms-brand);background:var(--lms-brand);color:var(--lms-on-brand)}.lms-main video{width:100%;max-height:500px;background:var(--lms-background);border-radius:var(--lms-radius)}.lms-transcript{margin:24px 0;padding:16px;background:var(--lms-surface);border-radius:var(--lms-radius);border:1px solid var(--lms-border)}.lms-transcript summary{font-weight:700;cursor:pointer}.lms-main fieldset{border:1px solid var(--lms-border);padding:20px;border-radius:var(--lms-radius);margin:24px 0;background:var(--lms-surface);min-width:0}.lms-main legend{font-weight:700;max-width:100%;overflow-wrap:anywhere}.lms-choice{display:flex;align-items:center;gap:12px;min-height:48px;padding:8px}.lms-choice input{width:20px;height:20px;accent-color:var(--lms-brand)}.lms-result{padding:16px;background:color-mix(in srgb,var(--lms-brand) 10%,var(--lms-surface));border:1px solid var(--lms-border);border-radius:var(--lms-radius)}.lms-feedback{padding:16px;background:var(--lms-surface);border:1px solid var(--lms-border)}.lms-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:28px 0}.lms-metrics article{background:var(--lms-surface);padding:20px;border:1px solid var(--lms-border);border-radius:var(--lms-radius);display:grid}.lms-metrics strong{font-size:calc(1.5rem * var(--lms-scale))}.lms-metrics span{font-size:0.65rem}.lms-table-scroll{overflow:auto;margin:24px 0}.lms-main table{width:100%;border-collapse:collapse;font-size:0.7rem;background:var(--lms-surface)}.lms-main caption{text-align:left;margin:12px 0;font-weight:700}.lms-main th,.lms-main td{text-align:left;padding:14px;border-bottom:1px solid var(--lms-border)}.lms-main>label{display:grid;gap:8px}.lms-main input[type=text],#lms-learner-name{padding:10px;width:100%;max-width:400px;border:1px solid var(--lms-border);border-radius:var(--lms-radius);background:var(--lms-surface)}.lms-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(max-width:999px){.lms-main{padding:var(--lms-space)}.lms-outline{padding:16px}}@media(max-width:599px){.lms-header{padding:20px;align-items:flex-start}.lms-header h1{font-size:calc(1.2rem * var(--lms-scale))}.lms-header>button{display:block;font-size:0.65rem;flex-shrink:0;max-width:100px}.lms-tabs{padding:12px 20px}.lms-shell{display:block}.lms-outline{display:none;border-bottom:1px solid var(--lms-border)}.lms-outline.lms-outline-open{display:block}.lms-main{padding:24px 20px}.lms-main h2{font-size:calc(1.5rem * var(--lms-scale))}.lms-actions button{flex:1 1 130px}.lms-metrics article{padding:16px}.lms-main fieldset{padding:12px}.lms-choice{padding:8px 0}}@media(prefers-reduced-motion:reduce){#lms-root *{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.lms-builder-tools{font-size:0.65rem}.lms-builder-tools label{display:grid;gap:6px;margin:14px 0}.lms-builder-tools input,.lms-builder-tools textarea,.lms-builder-tools select{width:100%;font:inherit;padding:8px;border:1px solid #cbd2df;border-radius:6px}.lms-builder-tools textarea{min-height:90px;resize:vertical}.lms-builder-tools input[type=checkbox]{width:auto}.lms-builder-tools button{min-height:40px;margin:3px 0;font-size:0.6rem}.lms-builder-tabs{display:flex;flex-wrap:wrap;gap:5px}.lms-builder-tabs button[aria-pressed=true]{background:#2334ea;color:white}.lms-builder-tree{list-style:none;padding:0}.lms-builder-tree ul{padding-left:12px;list-style:none}.lms-builder-tree button{width:100%;text-align:left}.lms-builder-tree button[aria-current=true]{border-color:#2334ea;background:#eff1ff}.lms-builder-card{margin:16px 0;padding:12px;border:1px solid #dce1eb;border-radius:8px}.lms-builder-actions{display:flex;gap:5px;flex-wrap:wrap}.lms-builder-tools [role=status]{font-size:0.6rem}.lms-builder-tools .export-note{font-size:0.6rem}.lms-builder-tools .lms-danger{color:#9c251d}
body.lms-export-body{margin:0}

#lms-root[data-font=mono]{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.lms-header-actions{display:flex;align-items:center;gap:12px}.lms-header-actions>[data-lms=outline]{display:grid}#lms-root .lms-settings-button{width:44px;height:44px;display:grid;place-items:center;padding:0;background:transparent;border-color:var(--lms-border)}.lms-settings-page .lms-main{margin:0 auto;padding:var(--lms-space);max-width:760px}.lms-builder-colors{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.lms-builder-tools input[type=color]{height:36px;padding:3px}.lms-builder-tools output{font-variant-numeric:tabular-nums;color:#657188}.lms-slide{box-shadow:0 12px 32px #0002}.lms-main>h2{letter-spacing:-.04em}.lms-header h1{letter-spacing:-.04em}.lms-outline button[aria-current=page]{box-shadow:inset 3px 0 var(--lms-brand)}@media(max-width:599px){.lms-header-actions{gap:8px}.lms-header-actions>[data-lms=outline]{display:block;font-size:0.6rem;padding:8px}.lms-header{gap:12px}.lms-main{padding:clamp(20px,4vw,var(--lms-space))}.lms-settings-page .lms-header h1{font-size:1rem}}

/* Media occupies the learner column; reading controls remain below it. */
#lms-root{display:flex;flex-direction:column;font-family:var(--lms-body-font,system-ui,sans-serif)!important;line-height:var(--lms-leading,1.65)}
.lms-header,.lms-tabs{flex-shrink:0}.lms-shell{flex:1;min-height:0}.lms-outline{align-self:stretch}
#lms-root h1,#lms-root h2,#lms-root h3{font-family:var(--lms-heading-font,system-ui,sans-serif);letter-spacing:-.02em}
.lms-main.lms-media-page{max-width:none;padding:0}.lms-player-stage{position:relative;width:100%;min-height:max(360px,calc(100vh - 290px));background:var(--lms-surface)}
.lms-slide.lms-player-stage{display:flex;align-items:center;justify-content:center;border:0;border-radius:0;box-shadow:none;padding:clamp(64px,6vw,100px)}
.lms-slide-content{width:100%;max-width:min(70ch,var(--lms-content-width))}.lms-slide-content h2{font-size:calc(clamp(1.6rem,3.2vw,2.8rem) * var(--lms-scale));line-height:1.18}.lms-slide-content .lms-prose{font-size:calc(clamp(0.85rem,1.36vw,1.1rem) * var(--lms-scale))}
.lms-video-stage{display:flex;align-items:center;justify-content:center;background:#000}.lms-video-stage video{display:block;width:100%;max-height:none;height:max(360px,calc(100vh - 290px));object-fit:contain;border-radius:0}
.lms-lesson-details{max-width:var(--lms-content-width);margin:auto;padding:24px var(--lms-space) var(--lms-space)}.lms-player-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.lms-lesson-details h3{margin:24px 0 12px}
#lms-root .lms-chevron{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;padding:0;border:0;border-radius:0;display:grid;place-items:center;background:var(--lms-background);color:var(--lms-text);transition:opacity .18s ease;opacity:0}.lms-chevron-prev{left:12px}.lms-chevron-next{right:12px}#lms-root .lms-player-stage:hover .lms-chevron,#lms-root .lms-chevron:focus-visible{opacity:1}#lms-root .lms-chevron:disabled{visibility:hidden}
#lms-root input[type=text],#lms-root input:not([type]),#lms-root textarea{color:var(--lms-text);caret-color:var(--lms-text);background:var(--lms-surface)}#lms-root input::placeholder,#lms-root textarea::placeholder{color:var(--lms-muted);opacity:1}.lms-notes-label{display:grid;gap:8px;margin-top:24px}.lms-notes-label textarea{width:100%;min-height:100px;resize:vertical;border:1px solid var(--lms-border);border-radius:var(--lms-radius);padding:12px;font:inherit}
.lms-builder-tools input::placeholder,.lms-builder-tools textarea::placeholder{color:#526078;opacity:1}
@media(hover:none){#lms-root .lms-chevron{opacity:1}}@media(max-width:599px){.lms-player-stage{min-height:360px}.lms-slide.lms-player-stage{padding:44px 60px}.lms-video-stage video{height:auto;aspect-ratio:16/9}.lms-video-stage{min-height:0}.lms-lesson-details{padding:24px 20px}.lms-slide-content h2{font-size:calc(1.4rem * var(--lms-scale))}}

/* Outline cells share the full sidebar width, including nested subsections. */
#lms-root .lms-outline{padding:16px 0}
.lms-outline>label{display:block;margin:0 16px 8px}.lms-outline>progress{display:block;width:calc(100% - 32px);margin:0 16px 12px}
#lms-root .lms-outline ul,#lms-root .lms-outline li{padding:0;margin:0;border:0;list-style:none}
#lms-root .lms-outline summary,#lms-root .lms-outline li>button{width:100%;min-height:44px;padding:10px 16px;padding-inline-start:calc(16px + var(--lms-depth,0) * 12px);margin:0;border:0!important;border-radius:0;box-shadow:none;line-height:1.35;overflow-wrap:anywhere}
#lms-root .lms-outline li>button{gap:2px}#lms-root .lms-outline summary,#lms-root .lms-outline li>button,#lms-root .lms-outline>label{font-size:0.8rem;font-weight:600}
#lms-root .lms-outline button[aria-current=page]{box-shadow:none;background:color-mix(in srgb,var(--lms-brand) 14%,var(--lms-surface))!important}
#lms-root .lms-preference{display:flex;align-items:center;gap:12px;margin:24px 0}.lms-preference input{width:20px;height:20px;accent-color:var(--lms-brand);flex-shrink:0}

.lms-lesson-title{display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0}.lms-lesson-title>span{min-width:0}.lms-complete-icon{flex-shrink:0;color:var(--lms-text)}

/* Results use a restrained dashboard and accessible pie-chart legend. */
.lms-report-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.lms-report-heading h2{margin-bottom:0}
.lms-report-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-block:1px solid var(--lms-border)}.lms-report-metrics article{border:0;border-radius:0;background:transparent;padding:20px 12px}.lms-report-metrics article+article{border-left:1px solid var(--lms-border)}
.lms-skills-dashboard{padding:12px 0 24px}.lms-skills-dashboard h3{margin:6px 0}@media(max-width:599px){.lms-report-metrics article{padding:16px 8px}.lms-report-metrics strong{font-size:1.2rem}.lms-report-metrics span{font-size:0.6rem}}
.lms-main.lms-report-page{max-width:none;width:100%}.lms-skills-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.lms-skills-heading .lms-preference{font-size:0.65rem;margin:12px 0}
.lms-skills-chart{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(0,1.2fr);gap:24px;align-items:start;margin:24px 0}.lms-pie-figure{margin:0;min-width:0}.lms-skill-pie{display:block;width:240px;max-width:100%;height:auto;overflow:visible}.lms-skill-pie [data-lms-slice]{transition:opacity .15s;cursor:default}.lms-skill-pie [data-lms-slice]:hover,.lms-skill-pie [data-lms-slice]:focus{opacity:.75;outline:none;stroke:var(--lms-text);stroke-width:3}.lms-pie-figure figcaption{font-size:0.65rem;margin-top:10px;min-height:3em;overflow-wrap:anywhere}.lms-pie-figure>.lms-muted{font-size:0.55rem}
.lms-skill-bars{min-width:0;width:100%;max-width:600px;align-self:center}.lms-skill-bars ul{list-style:none;padding:0;margin:0;display:grid;gap:3px}.lms-skill-track{position:relative;min-height:40px;background:var(--lms-surface);border-radius:3px;overflow:hidden}.lms-skill-fill{position:absolute;inset:0 auto 0 0;background:var(--lms-brand)}.lms-skill-label{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:40px;padding:0 10px;font-size:0.65rem;line-height:1.2;color:var(--lms-text)}.lms-skill-label strong{min-width:0;overflow-wrap:anywhere;font-weight:600}.lms-skill-label>span{flex-shrink:0;font-variant-numeric:tabular-nums;font-size:0.6rem;line-height:1.2}.lms-skill-label-filled{position:absolute;inset:0;z-index:1;color:var(--lms-on-brand);pointer-events:none}
@media(max-width:999px){.lms-skills-chart{grid-template-columns:1fr;gap:20px}.lms-pie-figure{display:grid;grid-template-columns:200px minmax(0,1fr);gap:12px;align-items:center}.lms-pie-figure figcaption{margin:0;min-height:0}.lms-pie-figure>.lms-muted{grid-column:1/-1;margin:0}}@media(max-width:599px){.lms-skills-chart{grid-template-columns:1fr}.lms-pie-figure{max-width:100%;display:grid;grid-template-columns:170px minmax(0,1fr);gap:12px;align-items:center}.lms-pie-figure figcaption{margin:0;min-height:0}.lms-pie-figure>.lms-muted{grid-column:1/-1;margin:0}.lms-skills-heading{gap:0}}

/* Documentation-backed skills lessons: readable code and completion exports. */
.lms-code{max-width:100%;overflow:auto;white-space:pre;tab-size:2;padding:20px;border:1px solid var(--lms-border);border-radius:var(--lms-radius);background:var(--lms-background);color:var(--lms-text);font:calc(0.75rem * var(--lms-scale))/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;text-align:left}
.lms-slide-content>.lms-prose+.lms-prose{margin-top:18px}.lms-sources{margin:24px 0}.lms-sources summary{cursor:pointer;font-weight:700;min-height:44px;padding:8px 0}.lms-sources li{margin:10px 0}.lms-sources a{color:var(--lms-brand);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.lms-guide{margin-top:24px;padding-top:24px;border-top:1px solid var(--lms-border)}
@media(max-width:599px){.lms-slide.lms-player-stage{padding:36px 52px}.lms-code{font-size:0.65rem;padding:12px}.lms-slide-content .lms-prose{font-size:0.85rem}}

/* The app fills the screen. The sidebar stays full height and the lesson, report, and settings scroll beside it. */
html,body.lms-export-body{height:100%;overflow:hidden;background:#0c0e12}
#lms-root{height:100dvh;min-height:100dvh;overflow:hidden}
.lms-shell{min-height:0;overflow:hidden;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}
.lms-outline{display:none}
#lms-root .lms-outline-toggle,#lms-root .lms-settings-button{width:44px;height:44px;min-height:44px;padding:0;display:flex;align-items:center;justify-content:center;line-height:0;background:transparent;flex-shrink:0}#lms-root .lms-outline-toggle svg,#lms-root .lms-settings-button svg{display:block}
.lms-shell:has(.lms-outline-open){grid-template-columns:280px minmax(0,1fr)}
.lms-outline.lms-outline-open{display:block;min-height:0;max-height:none;height:auto;overflow:auto}
.lms-main{min-width:0;min-height:0;overflow:auto}
@media(max-width:999px){
  .lms-shell:has(.lms-outline-open){grid-template-columns:minmax(0,230px) minmax(0,1fr)}
  .lms-main{width:100%;max-width:none}
}
@media(max-width:599px){
  .lms-shell,.lms-shell:has(.lms-outline-open){display:flex;flex-direction:column;overflow:hidden}
  .lms-outline.lms-outline-open{flex:0 0 auto;border-bottom:1px solid var(--lms-border);max-height:45vh}
  .lms-main{flex:1 1 auto}
}