.academy-root{--academy-ink:var(--base);--academy-surface:var(--surface);--academy-raised:var(--elevated);--academy-gold:var(--ui-accent);--academy-gold-bright:color-mix(in oklch,var(--ui-accent) 82%,var(--text-primary));--academy-gold-soft:color-mix(in srgb,var(--ui-accent) 10%,transparent);--academy-gold-line:color-mix(in srgb,var(--ui-accent) 42%,transparent);--academy-line:var(--border);--academy-line-soft:var(--border-subtle);--academy-text:var(--text-primary);--academy-muted:var(--text-secondary);--academy-faint:var(--text-tertiary);min-height:100dvh;overflow-x:clip;background:radial-gradient(circle at 70% 20%,color-mix(in srgb,var(--elevated-3) 30%,transparent),transparent 34%),var(--base);color:var(--academy-text);font-family:var(--font-sans)}.academy-root *,.academy-root :after,.academy-root :before{box-sizing:border-box}.academy-root :is(a,summary):focus-visible{outline:2px solid var(--academy-gold);outline-offset:3px}.academy-root>.ah-bar{min-height:56px;border-color:var(--ah-shell-rule);background:var(--ah-shell-bg)}.academy-root>.ah-bar .ah-wordmark{font-size:1.25rem}.academy-local-nav{display:flex;width:100%;min-width:0;align-items:center;justify-content:flex-start;gap:clamp(24px,3.6vw,54px);padding-left:clamp(10px,2.2vw,34px)}.academy-area{color:var(--academy-gold-bright);font-family:var(--font-serif);font-size:18px;font-weight:500;text-decoration:none}.academy-local-divider{width:1px;height:28px;flex:none;background:var(--academy-gold-line)}.academy-header-action,.academy-local-course,.academy-local-nav>a:not(.academy-area){color:var(--academy-muted);font-size:14px;letter-spacing:.02em;text-decoration:none;transition:color .16s ease}.academy-header-action:hover,.academy-local-nav>a:hover,.academy-local-nav>a[aria-current=page]{color:var(--academy-gold-bright)}.academy-header-action{white-space:nowrap}.academy-exit-mobile{display:none}.academy-hero{display:grid;grid-template-columns:minmax(460px,.92fr) minmax(560px,1.08fr);align-items:center;min-height:490px;max-width:1360px;margin-inline:auto;padding:28px clamp(48px,5vw,78px) 30px}.academy-hero-copy{position:relative;z-index:2;max-width:650px}.academy-hero-copy h1{max-width:620px;margin:0 0 20px;color:var(--academy-text);font-family:var(--font-serif);font-size:clamp(48px,4vw,64px);font-weight:350;letter-spacing:-.025em;line-height:1.12;text-wrap:balance}.academy-hero-copy>p:not(.academy-course-meta){max-width:610px;margin:0;color:var(--academy-muted);font-size:clamp(16px,1.35vw,20px);line-height:1.75}.academy-hero-actions{display:flex;align-items:center;gap:40px;margin-top:28px}.academy-hero-actions [data-slot=button]{min-width:286px;justify-content:space-between;box-shadow:0 8px 30px color-mix(in srgb,var(--ui-accent) 8%,transparent)}.academy-course-complete [data-slot=button] svg,.academy-hero-actions svg,.academy-question-column [data-slot=button] svg{width:22px;height:22px}.academy-course-meta{margin:21px 0 0!important;color:var(--academy-faint)!important;font-family:var(--font-mono);font-size:12px!important;letter-spacing:.035em}.academy-course-meta span{padding:0 8px}.academy-hero-chart{position:relative;justify-self:center;width:min(100%,650px);padding-right:142px}.academy-chart{position:relative;width:min(100%,410px);margin:0 auto}.academy-chart--preview{width:min(100%,440px)}.academy-chart :is(svg,canvas){display:block;max-width:100%;filter:brightness(1.28) saturate(1.12)}.academy-chart-callout{position:absolute;top:50%;right:0;width:215px;min-height:178px;padding:25px 25px 20px;transform:translateY(-45%);border:1px solid var(--academy-gold-line);border-radius:6px;background:color-mix(in srgb,var(--base) 84%,transparent);box-shadow:0 20px 45px rgba(0,0,0,.2)}.academy-chart-callout:before{position:absolute;top:50px;right:100%;width:54px;border-top:1px solid var(--academy-gold);content:"";transform:rotate(20deg);transform-origin:right center}.academy-chart-callout strong{display:block;margin-bottom:7px;color:var(--academy-gold-bright);font-size:12px}.academy-chart-callout>span:not(.academy-chart-callout-rule){color:var(--academy-text);font-family:var(--font-serif);font-size:18px}.academy-chart-callout-rule{display:block;height:1px;margin:17px 0 12px;background:var(--academy-gold-line)}.academy-chart-callout p{margin:0;color:var(--academy-muted);font-size:12px;line-height:1.65}.academy-curriculum-overview{display:grid;grid-template-columns:minmax(0,2.2fr) minmax(300px,1fr);gap:42px;max-width:1360px;margin-inline:auto;padding:24px clamp(48px,5vw,78px) 34px;border-top:1px solid var(--academy-line);scroll-margin-top:72px}.academy-curriculum-overview h2{margin:0 0 10px;color:var(--academy-text);font-family:var(--font-serif);font-size:30px;font-weight:350;letter-spacing:-.01em}.academy-course-rows{position:relative;display:flex;flex-direction:column}.academy-course-rows:before{position:absolute;top:18px;bottom:18px;left:35px;width:1px;background:var(--academy-gold);content:"";opacity:.65}.academy-course-row{position:relative;z-index:1;display:grid;grid-template-columns:54px minmax(0,1fr) auto 18px;align-items:center;gap:14px;min-height:56px;padding:0 18px 0 11px;border:1px solid transparent;border-bottom:1px solid var(--academy-line);color:var(--academy-text);text-decoration:none;transition:border-color .16s ease,background .16s ease}.academy-course-row:hover,.academy-course-row[data-current=true]{border-color:var(--academy-line);border-radius:4px;background:linear-gradient(90deg,color-mix(in srgb,var(--veil) 5.5%,transparent),color-mix(in srgb,var(--veil) 1.8%,transparent))}.academy-course-row[data-locked=true]{color:var(--academy-faint);cursor:not-allowed}.academy-course-row[data-locked=true]:hover{border-color:transparent;border-bottom-color:var(--academy-line);border-radius:0;background:transparent}.academy-course-row[data-locked=true] .academy-course-row-number{border-color:var(--academy-line);color:var(--academy-faint)}.academy-course-row[data-current=true] .academy-course-row-title{color:var(--academy-gold-bright)}.academy-course-row-number{display:grid;place-items:center;width:37px;height:37px;border:1px solid var(--academy-muted);border-radius:50%;background:var(--academy-ink);color:var(--academy-text);font-family:var(--font-serif);font-size:17px}.academy-course-row[data-current=true] .academy-course-row-number{border-color:var(--academy-gold);color:var(--academy-gold-bright)}.academy-course-row-number svg{width:17px;height:17px}.academy-course-row-title{font-family:var(--font-serif);font-size:19px}.academy-course-row-duration{color:var(--text-secondary);font-family:var(--font-mono);font-size:11px}.academy-course-row-chevron{width:16px;color:var(--academy-muted)}.academy-course-row-lock{width:15px;color:var(--academy-faint)}.academy-outcomes{padding-left:40px;border-left:1px solid var(--academy-gold-line)}.academy-outcomes ul{margin:0;padding:0;list-style:none}.academy-outcomes li{display:grid;grid-template-columns:64px 1fr;align-items:center;gap:18px;min-height:88px;border-bottom:1px solid var(--academy-line);color:var(--academy-muted);font-size:14px;line-height:1.55}.academy-outcomes li:last-child{border-bottom:0}.academy-outcomes svg{width:48px;height:48px;color:var(--academy-gold-bright)}.academy-lesson-progress{display:flex;align-items:center;gap:16px;min-height:56px;padding:0 clamp(20px,3vw,34px);border-bottom:1px solid var(--academy-line-soft);font-size:14px}.academy-lesson-progress,.academy-progress-place{color:var(--academy-muted)}.academy-progress-dots{display:flex;gap:7px}.academy-progress-dots>button{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:color-mix(in srgb,var(--veil) 16%,transparent);cursor:pointer}.academy-progress-dots>button:hover{background:var(--academy-muted)}.academy-progress-dots>button[data-state=done]{background:var(--academy-gold)}.academy-progress-dots>button[data-state=now]{background:var(--academy-gold-bright);box-shadow:0 0 0 4px color-mix(in srgb,var(--ui-accent) 16%,transparent)}.academy-contents-trigger{margin-left:auto;border:0;background:transparent;color:var(--academy-gold-bright);font-family:inherit;font-size:14px;cursor:pointer}.academy-lesson-layout{display:grid;grid-template-columns:minmax(0,1fr);min-height:calc(100dvh - 124px)}.academy-course-sidebar,.academy-study-sidebar{min-width:0;background:linear-gradient(145deg,color-mix(in srgb,var(--veil) 2%,transparent),transparent 48%)}.academy-course-sidebar{border-right:1px solid var(--academy-line)}.academy-study-content{position:sticky;top:0;max-height:calc(100dvh - 124px);overflow-y:auto;padding:32px 28px;scrollbar-width:thin;scrollbar-color:var(--academy-line) transparent}.academy-curriculum-rail h2,.academy-study-content>h2{margin:0 0 22px;color:var(--academy-text);font-family:var(--font-serif);font-size:18px;font-weight:400}.academy-lesson-stage{width:100%;max-width:1000px;min-width:0;margin:0 auto;padding:38px 50px 28px}.academy-sync-warning{margin:0 0 24px;padding:12px 14px;border:1px solid color-mix(in srgb,var(--ui-accent) 35%,transparent);border-radius:8px;background:color-mix(in srgb,var(--ui-accent) 6%,transparent);color:var(--academy-muted);font-size:13px;line-height:1.55}.academy-lesson-intro{padding-bottom:23px;border-bottom:1px solid var(--academy-line)}.academy-lesson-intro>p{margin:0 0 11px;color:var(--academy-gold-bright);font-size:13px}.academy-lesson-intro h1{margin:0 0 6px;color:var(--academy-text);font-family:var(--font-serif);font-size:clamp(38px,3.1vw,50px);font-weight:350;letter-spacing:-.025em;line-height:1.12}.academy-lesson-objective{max-width:46rem;margin:10px 0 0;color:var(--academy-muted);font-size:15px;line-height:1.65}.academy-lesson-objective>span{margin-right:10px;color:var(--academy-gold);font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap}.academy-lesson-player{margin-top:28px}.academy-lesson-screen{min-height:540px;padding-bottom:22px;scroll-margin-top:150px}.academy-lesson-screen .academy-teaching-section{border-bottom:0}.academy-lesson-screen .academy-worked-example{margin:38px 0 0}.academy-lesson-screen .academy-knowledge-check{margin-top:0;padding-top:38px;border-top:0}.academy-step-navigation{display:flex;align-items:center;gap:18px;margin-top:34px;padding-top:24px;border-top:1px solid var(--academy-line-soft)}.academy-step-navigation>[data-slot=button]:first-child{order:1;min-height:44px;padding-left:0;border:0;background:none;color:var(--academy-faint)}.academy-step-navigation>[data-slot=button]:first-child:hover{color:var(--academy-text);background:none}.academy-step-navigation>[data-slot=button]:last-child{order:2;min-width:190px;margin-left:auto}.academy-step-navigation>span{display:none}.academy-step-navigation [data-slot=button]{justify-content:center;gap:12px;min-height:48px}.academy-step-navigation [data-slot=button]:last-child{min-width:220px}.academy-step-navigation svg{width:18px;height:18px}.academy-arrow-back{transform:rotate(180deg)}.academy-teaching-sequence{position:relative;margin-top:10px}.academy-teaching-sequence:before{position:absolute;top:51px;bottom:51px;left:18px;width:1px;background:linear-gradient(var(--academy-gold-line),var(--academy-line));content:""}.academy-teaching-section{position:relative;padding:0 0 8px}.academy-teaching-copy{max-width:760px}.academy-practice-task h2,.academy-section-heading h2,.academy-section-heading>p,.academy-teaching-copy h2,.academy-teaching-kicker,.academy-worked-example h2{margin:0;color:var(--academy-text);font-family:var(--font-serif);font-size:clamp(26px,2.2vw,32px);font-weight:400;letter-spacing:-.02em;line-height:1.15}.academy-teaching-copy>p:not(.academy-teaching-takeaway){max-width:34rem;margin:18px 0 0;color:var(--academy-muted);font-size:clamp(16.5px,1.15vw,18px);line-height:1.72}.academy-teaching-points{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;max-width:34rem;margin:26px 0 0}.academy-teaching-points>div{padding:4px 0 4px 18px;border:0;border-left:2px solid var(--academy-line);border-radius:0;background:none}.academy-teaching-points>div:first-child{border-left-color:var(--academy-gold)}.academy-teaching-points dt{margin-bottom:5px;color:var(--academy-text);font-size:15px;font-weight:600}.academy-teaching-points dd{margin:0;color:var(--academy-muted);font-size:15px;line-height:1.65}.academy-teaching-takeaway{margin:18px 0 0;padding-left:13px;border-left:2px solid var(--academy-gold);color:var(--academy-muted);font-size:12px;line-height:1.6}.academy-teaching-takeaway strong{color:var(--academy-gold-bright);font-weight:500}.academy-worked-example{margin:0;padding:0;border:0;background:none}.academy-knowledge-check{margin-top:42px;padding-top:34px;border-top:1px solid var(--academy-gold-line)}.academy-checkpoint{display:grid;grid-template-columns:minmax(300px,.9fr) minmax(340px,1fr);gap:clamp(30px,4vw,48px);padding:29px 0 34px}.academy-chart-column{min-width:0;padding-right:clamp(20px,3vw,44px);border-right:1px solid var(--academy-line)}.academy-chart-column h3,.academy-question-column h3{margin:0 0 18px;color:var(--academy-text);font-family:var(--font-serif);font-size:19px;font-weight:400;line-height:1.4}.academy-question-column{min-width:0}.academy-options{width:100%}.academy-option{position:relative;min-height:48px;margin-bottom:12px;gap:14px!important;cursor:pointer}.academy-radio{display:block;flex:0 0 auto;width:24px;height:24px;border:1px solid var(--academy-muted);border-radius:50%}.academy-option[data-state=on] .academy-radio{border:4px solid var(--academy-gold-bright);box-shadow:inset 0 0 0 3px var(--academy-ink);background:var(--academy-gold-bright)}.academy-question-column>[data-slot=button]{width:100%;justify-content:space-between;margin-top:20px}.academy-review-link{display:inline-block;margin-top:15px;color:var(--academy-gold-bright);font-size:13px;text-decoration:none}.academy-review-link:hover{text-decoration:underline;text-underline-offset:4px}.academy-answer-feedback{display:grid;grid-template-columns:24px 1fr;gap:11px;margin-top:16px;padding:13px 15px;border:1px solid var(--academy-line);border-radius:5px;color:var(--academy-muted);font-size:15px;line-height:1.6}.academy-answer-feedback p strong{color:var(--academy-text)}.academy-answer-feedback[data-state=correct]{border-color:color-mix(in srgb,var(--positive) 45%,transparent);background:color-mix(in srgb,var(--positive) 5%,transparent)}.academy-answer-feedback[data-state=incorrect]{border-color:color-mix(in srgb,var(--warning) 50%,transparent);background:color-mix(in srgb,var(--warning) 5%,transparent)}.academy-answer-feedback p{margin:0}.academy-feedback-mark{display:grid;place-items:center;width:22px;height:22px;border:1px solid;border-radius:50%;color:var(--academy-gold-bright)}.academy-feedback-mark svg{width:13px;height:13px}.academy-course-feedback{margin:0 0 28px;padding:24px;border:1px solid var(--academy-gold-line);border-radius:5px;background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--ui-accent) 8%,transparent),transparent 42%),color-mix(in srgb,var(--veil) 1.5%,transparent)}.academy-feedback-heading>p{margin:0 0 6px;color:var(--academy-gold-bright);font-family:var(--font-mono);font-size:10px;letter-spacing:.07em;text-transform:uppercase}.academy-feedback-heading h2{margin:0;color:var(--academy-text);font-family:var(--font-serif);font-size:26px;font-weight:500}.academy-feedback-heading>span{display:block;margin-top:7px;color:var(--academy-muted);font-size:12px;line-height:1.6}.academy-course-feedback form{margin-top:20px}.academy-course-feedback fieldset{min-width:0;margin:0;padding:0;border:0}.academy-course-feedback fieldset:disabled{opacity:.65}.academy-course-feedback label,.academy-course-feedback legend{color:var(--academy-muted);font-size:11px;font-weight:600;letter-spacing:.02em}.academy-course-feedback label{display:flex;justify-content:space-between;gap:12px;margin:18px 0 7px}.academy-course-feedback label span{color:var(--academy-gold-bright);font-family:var(--font-mono);font-size:12px;font-weight:400;letter-spacing:.06em;text-transform:uppercase}.academy-feedback-rating{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}.academy-feedback-rating button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:10px 14px;border:1px solid var(--academy-line);border-radius:4px;background:color-mix(in srgb,var(--veil) 1.5%,transparent);color:var(--academy-muted);font:inherit;font-size:12px;cursor:pointer;transition:border-color .16s ease,background .16s ease,color .16s ease}.academy-feedback-rating button:hover{border-color:var(--academy-gold-line);color:var(--academy-text)}.academy-feedback-rating button[data-selected=true]{border-color:var(--academy-gold);background:var(--academy-gold-soft);color:var(--academy-text)}.academy-feedback-rating button span{font-size:17px}.academy-course-feedback select,.academy-course-feedback textarea{width:100%;padding:12px 13px;border:1px solid var(--academy-line);border-radius:4px;outline:none;background:color-mix(in srgb,var(--darkest) 16%,transparent);color:var(--academy-text);font:inherit;font-size:16px;line-height:1.6;transition:border-color .16s ease,box-shadow .16s ease}.academy-course-feedback textarea{min-height:104px;resize:vertical}.academy-course-feedback select{min-height:46px;appearance:none;cursor:pointer}.academy-course-feedback textarea::placeholder{color:var(--academy-faint)}.academy-course-feedback select:focus,.academy-course-feedback textarea:focus{border-color:var(--academy-gold);box-shadow:0 0 0 3px var(--academy-gold-soft)}.academy-feedback-help{display:flex;justify-content:space-between;gap:12px;margin-top:6px;color:var(--academy-faint);font-size:12px}.academy-feedback-actions{display:flex;align-items:center;gap:14px;margin-top:15px}.academy-feedback-error,.academy-feedback-success{display:flex;align-items:center;gap:7px;margin:0;font-size:13px}.academy-feedback-success{color:var(--positive)}.academy-feedback-success svg{width:15px;height:15px}.academy-feedback-error{color:var(--warning)}.academy-up-next{position:relative;display:block;padding:20px 56px 20px 23px;border:1px solid var(--academy-line);border-radius:4px;color:var(--academy-muted);text-decoration:none;transition:border-color .16s ease,background .16s ease}.academy-up-next:hover{border-color:var(--academy-gold-line);background:color-mix(in srgb,var(--veil) 2%,transparent)}.academy-up-next[data-locked=true]{color:var(--academy-faint);cursor:not-allowed}.academy-up-next[data-locked=true]:hover{border-color:var(--academy-line);background:transparent}.academy-up-next[data-locked=true] strong{color:var(--academy-muted)}.academy-up-next>span,.academy-up-next[data-locked=true]>svg{color:var(--academy-faint)}.academy-up-next>span{display:block;margin-bottom:4px;font-size:12px}.academy-up-next strong{color:var(--academy-text);font-family:var(--font-serif);font-size:19px;font-weight:400}.academy-up-next p{margin:5px 0 0;font-size:12px}.academy-up-next>svg{position:absolute;top:50%;right:22px;width:20px;transform:translateY(-50%)}.academy-route-guard{display:grid;place-items:center;align-content:center;gap:14px;min-height:calc(100dvh - 64px);color:var(--academy-muted)}.academy-guard-ring svg{width:52px;height:52px;display:block}.academy-guard-track{fill:none;stroke:var(--academy-line);stroke-width:1}.academy-guard-arc{stroke:var(--academy-gold-bright);stroke-width:1.6;stroke-linecap:round;transform-origin:24px 24px;animation:academy-guard-spin 1.5s linear infinite}@keyframes academy-guard-spin{to{transform:rotate(1turn)}}@media (prefers-reduced-motion:reduce){.academy-guard-arc{animation:none}}.academy-route-guard p{margin:0;color:var(--academy-muted);font-family:var(--font-serif);font-size:20px;letter-spacing:-.01em}.academy-course-complete{display:grid;grid-template-columns:28px 1fr;gap:12px;margin-top:18px;padding:18px}.academy-course-complete>svg{width:24px;color:var(--academy-gold-bright)}.academy-course-complete strong{color:var(--academy-text)}.academy-course-complete p{margin:4px 0 14px;color:var(--academy-muted);font-size:12px;line-height:1.5}.academy-course-complete [data-slot=button]{grid-column:1/-1;width:100%}.academy-contents-sheet{--background:var(--academy-ink);--foreground:var(--academy-text);width:min(88vw,380px)!important;padding:8px 6px!important;border-color:var(--academy-line-soft)!important;background-color:var(--base)!important;background-image:none!important;color:var(--academy-text)!important;overflow-x:hidden!important}.academy-contents-sheet [data-slot=sheet-header]{padding:18px 18px 10px}.academy-contents-sheet [data-slot=sheet-close]{color:var(--academy-muted)}.academy-contents-sheet [data-slot=sheet-title]{color:var(--academy-text);font-family:var(--font-serif);font-size:26px;font-weight:400;letter-spacing:-.015em}.academy-contents-sheet [data-slot=sheet-description]{color:var(--academy-faint);font-size:14px}@media (max-width:1250px){.academy-hero{grid-template-columns:minmax(420px,.95fr) minmax(480px,1.05fr)}.academy-hero-chart{padding-right:100px}.academy-chart-callout{width:185px;padding:20px}.academy-lesson-layout{grid-template-columns:minmax(0,1fr)}}@media (max-width:1040px){.academy-hero{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);padding-right:38px;padding-left:38px}.academy-hero-chart{padding-right:0}.academy-hero-actions{gap:20px}.academy-hero-actions [data-slot=button]{min-width:0;flex:0 1 320px}.academy-chart-callout{right:-5px;bottom:2px;top:auto;width:170px;min-height:auto;padding:15px;transform:none}.academy-chart-callout:before{display:none}.academy-curriculum-overview{padding-right:38px;padding-left:38px}.academy-outcomes{padding-left:26px}.academy-lesson-stage{padding-right:32px;padding-left:32px}}@media (max-width:820px){.academy-root>.ah-bar{min-height:56px;background:var(--ah-shell-bg)}.academy-local-nav{display:none}.academy-header-action{font-size:12px}.academy-exit-desktop{display:none}.academy-exit-mobile{display:inline}.academy-hero{grid-template-columns:minmax(0,1fr);min-height:0;padding:45px 22px 35px}.academy-hero-copy h1{max-width:530px;font-size:clamp(40px,12vw,56px)}.academy-hero-copy>p:not(.academy-course-meta){font-size:16px;line-height:1.65}.academy-hero-actions{align-items:stretch;flex-direction:column;gap:13px}.academy-hero-actions [data-slot=button]{width:100%;min-width:0;flex:none}.academy-course-meta{line-height:1.7}.academy-hero-chart{width:min(100%,520px);margin-top:30px;padding:0 45px 100px}.academy-chart-callout{right:0;bottom:0;left:0;width:100%}.academy-curriculum-overview{grid-template-columns:1fr;gap:34px;padding:27px 22px 44px}.academy-curriculum-overview h2{font-size:27px}.academy-course-row{grid-template-columns:44px minmax(0,1fr) 16px;gap:10px;min-height:62px;padding-right:8px;padding-left:5px}.academy-course-row-duration{display:none}.academy-course-rows:before{left:23px}.academy-course-row-number{width:36px;height:36px}.academy-course-row-title{font-size:17px}.academy-outcomes{padding:28px 0 0;border-top:1px solid var(--academy-gold-line);border-left:0}.academy-lesson-progress{position:sticky;top:58px;z-index:18;gap:12px;min-height:52px;padding:0 17px;background:var(--academy-ink);font-size:13px}.academy-lesson-layout{display:block;min-height:0}.academy-course-sidebar,.academy-study-sidebar{display:none}.academy-lesson-stage{padding:28px 19px 40px}.academy-lesson-intro{padding-bottom:20px}.academy-lesson-intro h1{font-size:clamp(36px,11vw,48px)}.academy-lesson-intro>span{font-size:14px}.academy-lesson-player{margin-top:22px}.academy-lesson-screen{min-height:0;scroll-margin-top:125px}.academy-step-navigation{grid-template-columns:1fr 1fr;gap:10px}.academy-step-navigation>span{grid-column:1/-1;grid-row:1}.academy-step-navigation [data-slot=button]{grid-row:2;width:100%;min-width:0!important;padding-right:14px;padding-left:14px;font-size:12px}.academy-teaching-sequence:before{left:15px}.academy-teaching-section{grid-template-columns:31px minmax(0,1fr);gap:14px;padding:30px 0}.academy-practice-task h2,.academy-section-heading h2,.academy-teaching-copy h2,.academy-worked-example h2{font-size:25px}.academy-teaching-copy>p:not(.academy-teaching-takeaway){font-size:16.5px;line-height:1.7}.academy-teaching-points,.academy-worked-example ol{grid-template-columns:1fr}.academy-worked-example{margin:30px 0;padding:19px}.academy-knowledge-check{margin-top:32px;padding-top:28px}.academy-checkpoint{grid-template-columns:1fr;gap:28px;padding-top:22px}.academy-chart-column{padding-right:0;padding-bottom:26px;border-right:0;border-bottom:1px solid var(--academy-line)}.academy-chart{width:min(100%,350px)}.academy-question-column>[data-slot=button]{min-height:54px}.academy-option{min-height:60px!important;padding:12px 15px!important}.academy-course-feedback{padding:19px}.academy-feedback-rating{grid-template-columns:1fr}.academy-feedback-actions{align-items:stretch;flex-direction:column}.academy-feedback-actions [data-slot=button]{width:100%}.academy-up-next{margin-top:6px}}@media (max-width:420px){.academy-hero-copy h1{font-size:40px}.academy-hero-chart{padding-right:0;padding-left:0}.academy-course-meta span{padding:0 3px}.academy-lesson-intro h1{font-size:38px}.academy-course-complete{padding:15px}}@media (prefers-reduced-motion:reduce){.academy-root *,.academy-root :after,.academy-root :before{scroll-behavior:auto!important;transition-duration:.01ms!important}}.academy-lesson-body{display:grid;grid-template-columns:minmax(300px,440px) minmax(0,1fr);gap:clamp(30px,4vw,64px);align-items:start}.academy-lesson-wide{grid-column:1/-1;min-width:0}.academy-lesson-wide:empty{display:none}.academy-lesson-wide>.academy-check:first-child{margin-top:0}.academy-lesson-body[data-layout=stacked]{grid-template-columns:minmax(0,1fr)}.academy-lesson-body[data-layout=stacked] .academy-lesson-aside{max-width:420px;margin-inline:auto}.academy-lesson-aside{min-width:0}.academy-lesson-figure{position:sticky;top:18px;z-index:2;margin:0;padding:0;border:0;background:none}.academy-lesson-figure .academy-chart{width:100%;max-width:none}.academy-look-for{display:flex;gap:11px;align-items:flex-start;margin:18px 0 0;color:var(--academy-muted);font-size:15px;line-height:1.55}.academy-look-pin{flex:none;display:grid;place-items:center;width:22px;height:22px;margin-top:1px;border:1px solid var(--academy-gold);border-radius:50%;color:var(--academy-gold-bright);font-size:12px}.academy-look-for b{color:var(--academy-text);font-weight:500}.academy-figure-close{justify-self:center;min-height:48px;padding:0 34px;border:1px solid var(--academy-gold-line);border-radius:5px;background:transparent;color:var(--academy-gold-bright);font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;cursor:pointer}.academy-check{margin-top:0;padding:0;border:0;background:none}.academy-check-kicker{margin:0 0 10px;color:var(--academy-gold);font-size:15px}.academy-check h3{margin:0 0 18px;max-width:34rem;color:var(--academy-text);font-family:var(--font-serif);font-size:20px;font-weight:400;line-height:1.4}.academy-check>[data-slot=button]{width:100%;justify-content:space-between;margin-top:18px}.academy-lesson-complete{display:grid;grid-template-columns:26px 1fr;gap:14px 16px;margin-top:34px;padding:24px}.academy-lesson-complete>svg{color:var(--academy-gold-bright)}.academy-lesson-complete strong{display:block;color:var(--academy-text);font-family:var(--font-serif);font-size:21px;font-weight:400}.academy-lesson-complete p{margin:8px 0 0;color:var(--academy-muted);font-size:15px;line-height:1.6}.academy-lesson-complete>[data-slot=button]{grid-column:2}@media (max-width:820px){.academy-lesson-body{grid-template-columns:minmax(0,1fr)}.academy-lesson-figure{position:static;padding:14px 14px 12px}.academy-lesson-figure .academy-chart{max-width:min(100%,42svh);margin-inline:auto}.academy-check{padding:18px 16px 20px}.academy-lesson-complete{padding:18px 16px}}.academy-term{color:inherit;text-decoration:underline dotted;text-decoration-color:color-mix(in srgb,var(--ui-accent) 60%,transparent);text-underline-offset:3px;text-decoration-thickness:1px}.academy-term:hover{color:var(--academy-gold-bright);text-decoration-color:var(--academy-gold)}.academy-lesson-body[data-layout=stacked] .academy-lesson-wide>.academy-check{max-width:46rem;margin-inline:auto;text-align:center}.academy-lesson-body[data-layout=stacked] .academy-check h3{max-width:none;margin-inline:auto;font-size:clamp(24px,2.3vw,32px);line-height:1.25}.academy-lesson-body[data-layout=stacked] .academy-check .academy-answer-feedback,.academy-lesson-body[data-layout=stacked] .academy-check .academy-option{text-align:left}.academy-lesson-body[data-layout=stacked] .academy-check>[data-slot=button]{width:auto;min-width:200px;margin-inline:auto}.academy-worked-steps{max-width:34rem;margin:26px 0 0;padding:0;list-style:none;display:grid;gap:16px}.academy-worked-steps li{padding:4px 0 4px 18px;border-left:2px solid var(--academy-line)}.academy-worked-steps li:first-child{border-left-color:var(--academy-gold)}.academy-worked-steps strong{display:block;margin-bottom:5px;color:var(--academy-text);font-size:15px;font-weight:500}.academy-worked-steps span{color:var(--academy-muted);font-size:15.5px;line-height:1.6}.academy-lesson-body[data-layout=finish]{grid-template-columns:minmax(0,1fr);padding:clamp(30px,6vh,80px) 0}.academy-lesson-body[data-layout=finish] .academy-lesson-complete{display:block;max-width:34rem;margin:0 auto;padding:0;text-align:center}.academy-complete-mark{display:grid;place-items:center;width:58px;height:58px;margin:0 auto 24px;border:1px solid var(--academy-gold-line);border-radius:50%;color:var(--academy-gold-bright)}.academy-complete-mark svg{width:26px;height:26px}.academy-lesson-body[data-layout=finish] .academy-lesson-complete strong{font-size:clamp(30px,2.9vw,40px);letter-spacing:-.02em}.academy-complete-place{margin:10px 0 0!important;color:var(--academy-gold)!important;font-size:15px!important}.academy-lesson-body[data-layout=finish] .academy-lesson-complete>[data-slot=button]{margin-top:30px}.academy-progress-dots>button{min-width:0;min-height:0}.academy-progress-bar{display:none;flex:1;height:4px;overflow:hidden;border-radius:999px;background:color-mix(in srgb,var(--veil) 14%,transparent)}.academy-progress-bar>span{display:block;height:100%;border-radius:inherit;background:var(--academy-gold);transition:width .22s ease}@media (max-width:820px){.academy-progress-dots{display:none}.academy-progress-bar{display:block}.academy-lesson-progress{gap:12px;font-size:12.5px}.academy-progress-place{flex:none;white-space:nowrap}.academy-contents-trigger{flex:none;min-height:44px}.academy-step-navigation{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}.academy-step-navigation>[data-slot=button]{grid-row:auto;grid-column:1}.academy-step-navigation>[data-slot=button]:last-child{order:1;min-width:0;width:100%;margin-left:0}.academy-step-navigation>[data-slot=button]:first-child{order:2;justify-content:center}}.academy-curriculum-rail{height:100%;overflow-y:auto;padding:4px 4px 12px}.academy-curriculum-rail,.academy-curriculum-rail nav{display:flex;flex-direction:column}.academy-curriculum-group+.academy-curriculum-group{border-top:1px solid var(--academy-line-soft)}.academy-curriculum-row{display:flex;align-items:center;gap:4px}.academy-curriculum-link{display:flex;flex:1;align-items:center;gap:14px;min-width:0;min-height:52px;padding:10px 6px 10px 12px;color:var(--academy-text);text-decoration:none}.academy-curriculum-row[data-active=true] .academy-curriculum-link{color:var(--academy-gold-bright)}.academy-curriculum-number{flex:none;display:grid;place-items:center;width:26px;height:26px;border:1px solid var(--academy-line);border-radius:50%;color:var(--academy-faint);font-size:13px}.academy-curriculum-row[data-active=true] .academy-curriculum-number{border-color:var(--academy-gold-line);color:var(--academy-gold-bright)}.academy-curriculum-title{flex:1;min-width:0;font-family:var(--font-serif);font-size:17px;line-height:1.3}.academy-curriculum-complete{flex:none;color:var(--academy-gold)}.academy-curriculum-complete svg{width:16px;height:16px}.academy-curriculum-toggle{flex:none;display:grid;place-items:center;width:44px;height:44px;border:0;background:none;color:var(--academy-faint);cursor:pointer}.academy-curriculum-toggle svg{width:16px;height:16px;transition:transform .16s ease}.academy-curriculum-group[data-open=true] .academy-curriculum-toggle svg{transform:rotate(90deg)}.academy-curriculum-toggle:hover{color:var(--academy-gold-bright)}.academy-curriculum-steps{padding:0 0 0 26px;list-style:none;border-left:1px solid var(--academy-line-soft);margin:0 0 12px 24px}.academy-curriculum-steps button{display:flex;align-items:center;gap:12px;width:100%;min-height:44px;padding:6px 8px;border:0;background:none;color:var(--academy-muted);font-family:inherit;font-size:15px;text-align:left;cursor:pointer}.academy-curriculum-steps button:hover{color:var(--academy-text)}.academy-curriculum-steps button[data-current=true]{color:var(--academy-gold-bright)}.academy-curriculum-step-index{flex:none;width:18px;color:var(--academy-faint);font-size:12px}.academy-curriculum-foot{display:flex;align-items:center;gap:18px;margin-top:auto;padding:16px 12px 6px;border-top:1px solid var(--academy-line)}.academy-glossary-link{display:flex;align-items:center;gap:9px;min-height:44px;color:var(--academy-muted);font-size:15px;text-decoration:none}.academy-glossary-link svg{width:17px;height:17px}.academy-leave-link{margin-left:auto;min-height:44px;display:flex;align-items:center;color:var(--academy-faint);font-size:15px;text-decoration:none}.academy-glossary-link:hover,.academy-leave-link:hover{color:var(--academy-gold-bright)}.academy-highlight{background:none;padding-bottom:1px;border-bottom:2px solid color-mix(in srgb,var(--ui-accent) 55%,transparent);color:var(--academy-text)}.academy-cta-placeholder,.academy-skeleton-disc{position:relative;overflow:hidden;background:color-mix(in srgb,var(--veil) 5%,transparent)}.academy-cta-placeholder{display:block;width:286px;max-width:100%;height:56px;border-radius:4px}.academy-skeleton-disc{display:block;width:15px;height:15px;border-radius:50%;background:color-mix(in srgb,var(--veil) 9%,transparent)}.academy-skeleton-sheen{position:absolute;inset:0;background:linear-gradient(100deg,transparent 20%,color-mix(in srgb,var(--ui-accent) 13%,transparent) 50%,transparent 80%);transform:translateX(-100%);animation:academy-skeleton-sweep 1.5s ease-in-out infinite}@keyframes academy-skeleton-sweep{to{transform:translateX(100%)}}@media (prefers-reduced-motion:reduce){.academy-skeleton-sheen{animation:none}}.academy-course-rows[data-ready=true] .academy-course-row-number,.academy-course-rows[data-ready=true] .academy-course-row-title{transition:color .26s ease,border-color .26s ease,background-color .26s ease}@media (max-width:820px){.academy-cta-placeholder{width:100%}}