.classroom{--cl-ground:#080808;--cl-panel:#171717;--cl-raised:#242424;--cl-ink:#f7f7f4;--cl-muted:#b9b9b5;background:var(--cl-ground);color:var(--cl-ink);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;min-height:100svh;font-family:Arial,Helvetica,sans-serif;font-size:15px;line-height:1.55}.classroom *{box-sizing:border-box}.classroom :focus-visible{outline-offset:5px;outline:2px solid #e6ff63}.classroom a{color:inherit;text-decoration:none}.classroom button,.classroom select,.classroom textarea{font:inherit}.classroom button,.classroom .cl-primary{background:var(--cl-raised);min-height:44px;color:var(--cl-ink);cursor:pointer;border:0;border-radius:50px;justify-content:center;align-items:center;gap:9px;padding:11px 19px;transition:background .18s,color .18s;display:inline-flex}.classroom .cl-primary{background:var(--cl-ink);color:var(--cl-ground);font-weight:600}.classroom button:hover,.classroom a.cl-primary:hover{background:#363636}.classroom .cl-primary:hover{color:#080808;background:#d9d9d5!important}.classroom button:disabled{color:#b9b9b5;cursor:not-allowed;background:#333}.classroom svg{stroke-width:1.6px;flex:none}.classroom h1,.classroom h2,.classroom h3{letter-spacing:-.035em;font-weight:500;line-height:1.15}.classroom h1{margin:0;font-size:28px}.classroom h2{font-size:24px}.classroom h3{font-size:19px}.cl-header,.cl-main,.classroom footer{max-width:1408px;margin:auto;padding-left:40px;padding-right:40px}.cl-header{align-items:center;gap:35px;min-height:88px;display:flex}.cl-header .cl-brand{letter-spacing:-1.3px;align-items:baseline;gap:12px;font-size:24px;font-weight:800;display:flex}.cl-brand span{letter-spacing:0;color:var(--cl-muted);font-size:14px;font-weight:400}.cl-header nav{align-items:center;gap:8px;margin:auto;display:flex}.cl-header nav button,.cl-header nav a{color:var(--cl-muted);background:0 0;align-items:center;gap:5px;padding:10px 14px;font-size:14px;display:flex}.cl-header nav button[aria-pressed=true]{color:var(--cl-ink);background:var(--cl-panel)}.cl-header select{background:var(--cl-panel);max-width:145px;color:var(--cl-ink);border:0;border-radius:30px;padding:10px;font-size:13px}.cl-page-title{justify-content:space-between;align-items:center;gap:20px;margin:24px 0;display:flex}.cl-page-title>span{color:var(--cl-muted);font-size:13px}.cl-opening{grid-template-columns:minmax(0,1fr) 300px;gap:20px;display:grid}.cl-feature{isolation:isolate;background:#111;border-radius:8px;min-height:420px;position:relative;overflow:hidden}.cl-feature>img{object-fit:cover;object-position:center 24%;width:100%;height:100%;position:absolute;inset:0}.cl-feature:after{content:"";z-index:-1;background:#0004;position:absolute;inset:0}.cl-feature>img{z-index:-2}.cl-feature-copy{background:linear-gradient(#0000 25%,#0000007a 64%,#000000f0);flex-direction:column;justify-content:flex-end;height:100%;padding:30px;display:flex}.cl-feature-copy>strong{letter-spacing:-.065em;font-size:clamp(34px,4.5vw,64px);font-weight:500;line-height:1}.cl-feature-copy>p{max-width:430px;margin:15px 0 20px;font-size:15px}.cl-actions{flex-wrap:wrap;align-items:center;gap:12px;margin:20px 0 0;display:flex}.cl-feature .cl-actions{margin:0}.classroom .cl-play{color:#fff;background:#0007}.cl-side-panel{background:var(--cl-panel);border-radius:8px;flex-direction:column;justify-content:center;align-items:flex-start;padding:24px;display:flex}.cl-side-panel>svg{color:var(--cl-muted);margin-bottom:18px}.cl-side-panel h2{margin:0 0 12px}.cl-side-panel p{color:var(--cl-muted);margin:0 0 18px}.cl-price{letter-spacing:-.05em;font-variant-numeric:tabular-nums;margin:8px 0 16px;font-size:48px;line-height:1}.cl-price span{letter-spacing:0;color:var(--cl-muted);font-size:15px}.cl-side-panel .cl-small{font-size:13px}.cl-access-actions{text-align:center;flex-direction:column;gap:15px;width:100%;display:flex}.cl-access-actions>a:not(.cl-primary){text-underline-offset:4px;font-size:13px;text-decoration:underline}.cl-notice:empty{display:none}.cl-side-panel .cl-notice{margin-top:14px}.cl-progress{width:100%;color:var(--cl-muted);margin:28px 0 18px;font-size:13px}.cl-progress progress{-webkit-appearance:none;appearance:none;background:#363636;border:0;width:100%;height:4px;margin-top:10px;display:block}.cl-progress progress::-webkit-progress-bar{background:#363636}.cl-progress progress::-webkit-progress-value{background:#e6ff63}.cl-progress progress::-moz-progress-bar{background:#e6ff63}.cl-download{align-items:center;gap:10px;width:100%;font-size:13px;display:flex}.cl-download span{color:var(--cl-muted);margin-left:auto}.cl-terms{align-items:flex-start;gap:10px;margin:8px 0 20px;font-size:13px;display:flex}.cl-terms input{flex:none;width:18px;height:18px}.cl-terms a{text-decoration:underline}.cl-section-heading{justify-content:space-between;align-items:center;gap:20px;margin:32px 0 20px;display:flex}.cl-section-heading h2{margin:0}.cl-section-heading>span{color:var(--cl-muted);font-size:13px}.cl-section-heading a{align-items:center;gap:8px;font-size:13px;display:flex}.cl-chapter-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 20px;display:grid}.classroom .cl-chapter{text-align:left;background:0 0;border-radius:8px;align-self:stretch;min-width:0;padding:0;display:block;overflow:hidden}.classroom .cl-chapter:hover{background:var(--cl-panel)}.cl-cover{aspect-ratio:16/9;background:var(--cl-panel);border-radius:8px;position:relative;overflow:hidden}.cl-cover>img{object-fit:cover;width:100%;height:100%;transition:transform .3s}.cl-chapter:hover .cl-cover>img{transform:scale(1.025)}.cl-cover-action{color:#fff;background:#111d;border-radius:50%;place-items:center;width:36px;height:36px;display:grid;position:absolute;bottom:12px;right:12px}.cl-completed{background:#111e;border-radius:30px;align-items:center;gap:6px;padding:5px 10px;font-size:12px;display:flex;position:absolute;top:12px;left:12px}.cl-chapter-copy{padding:16px 12px 20px}.cl-chapter-copy h3{margin:0 0 10px}.cl-chapter-copy p{color:var(--cl-muted);min-height:44px;margin:0 0 18px;font-size:14px;font-weight:400}.cl-chapter-copy>span{align-items:center;gap:10px;font-size:13px;display:flex}.cl-reader{scroll-margin-top:20px}.cl-reader-toolbar{justify-content:space-between;align-items:center;margin:10px 0 24px;display:flex}.cl-reader-toolbar>a{align-items:center;gap:8px;font-size:14px;display:flex}.classroom .cl-reader-toolbar button{background:0 0;padding-left:0}.cl-reader-banner{background:var(--cl-panel);border-radius:8px;grid-template-columns:280px 1fr;align-items:center;gap:32px;display:grid;overflow:hidden}.cl-reader-banner img{object-fit:cover;width:100%;height:200px}.cl-reader-banner>div{padding:24px 32px 24px 0}.cl-reader-banner h2{margin:0 0 14px;font-size:32px}.cl-reader-banner p{color:var(--cl-muted);max-width:700px;margin:0}.cl-reading-layout{grid-template-columns:minmax(0,1.4fr) minmax(280px,1fr);gap:40px;margin:32px 0;display:grid}.cl-reading-layout h3{margin:0 0 22px}.cl-reading-layout details{border-bottom:1px solid #292929;padding:18px 0}.cl-reading-layout details:first-of-type{padding-top:0}.cl-reading-layout summary{cursor:pointer;justify-content:space-between;align-items:flex-start;gap:16px;font-size:17px;line-height:1.45;list-style:none;display:flex}.cl-reading-layout summary::-webkit-details-marker{display:none}.cl-reading-layout summary>span{color:var(--cl-muted);flex:none;font-size:24px;line-height:1}.cl-reading-layout details[open] summary>span{transform:rotate(45deg)}.cl-reading-layout details p{color:var(--cl-muted);margin:18px 0 6px;font-size:16px;line-height:1.8}.cl-prompt-editor{background:var(--cl-panel);border-radius:8px;min-width:0;margin-bottom:20px;padding:22px}.cl-prompt-heading{justify-content:space-between;align-items:center;gap:15px;margin-bottom:16px;display:flex}.cl-prompt-heading h3{margin:0;font-size:18px}.cl-prompt-heading span{color:var(--cl-muted);font-size:12px}.cl-prompt-editor textarea{width:100%;color:var(--cl-muted);resize:vertical;background:0 0;border:0;border-radius:0;min-height:240px;padding:0;font-size:14px;line-height:1.75}.cl-prompt-editor .cl-actions a{align-items:center;gap:6px;font-size:13px;display:flex}.cl-prompt-layout{grid-template-columns:260px minmax(0,1fr);gap:24px;display:grid}.cl-prompt-layout aside{flex-direction:column;gap:4px;display:flex}.classroom .cl-prompt-layout aside button{text-align:left;color:var(--cl-muted);background:0 0;border-radius:6px;justify-content:space-between;font-size:14px}.classroom .cl-prompt-layout aside button[aria-pressed=true]{background:var(--cl-raised);color:var(--cl-ink)}.cl-error{padding:30px 0}.classroom footer{color:var(--cl-muted);justify-content:space-between;align-items:center;gap:20px;margin-top:24px;padding-top:36px;padding-bottom:36px;font-size:13px;display:flex}.cl-teaser{color:#fff;background:#111;border:0;border-radius:8px;width:90vw;max-width:1000px;padding:18px}.cl-teaser::backdrop{background:#000d}.cl-teaser button{margin:0 0 12px auto;display:flex}.cl-teaser video{width:100%;max-height:75vh;display:block}.cl-chapters{scroll-margin-top:20px}@media (min-width:1600px){.cl-feature{min-height:460px}}@media (max-width:1000px){.cl-header,.cl-main,.classroom footer{padding-left:24px;padding-right:24px}.cl-opening{grid-template-columns:minmax(0,1fr) 260px;gap:16px}.cl-feature{min-height:400px}.cl-feature-copy{padding:24px}.cl-side-panel{padding:20px}.cl-feature-copy>strong{font-size:42px}.cl-chapter-grid,.cl-header{gap:16px}.cl-header nav{gap:0}.cl-header nav button,.cl-header nav a{padding:8px 10px}.cl-brand span{display:none}.cl-reading-layout{gap:24px}.cl-reader-banner{grid-template-columns:220px 1fr;gap:24px}.cl-reader-banner h2{font-size:28px}}@media (max-width:700px){.cl-header,.cl-main,.classroom footer{padding-left:18px;padding-right:18px}.cl-header{flex-wrap:wrap;gap:14px;min-height:0;padding-top:20px;padding-bottom:12px}.cl-header nav{order:3;justify-content:flex-start;width:100%;margin:0}.cl-header select{max-width:130px;margin-left:auto}.cl-brand span{display:inline}.cl-page-title{flex-direction:column;align-items:flex-start;gap:7px;margin:20px 0}.classroom h1{font-size:26px}.cl-opening{grid-template-columns:1fr;gap:16px}.cl-feature{min-height:380px}.cl-feature>img{object-position:center 22%}.cl-feature-copy{padding:22px}.cl-feature-copy>strong{font-size:44px}.cl-feature-copy>p{max-width:280px;font-size:14px}.cl-feature .cl-actions{gap:8px}.cl-feature .cl-actions button{padding:10px 14px;font-size:13px}.cl-side-panel{padding:24px}.cl-side-panel>svg{display:none}.cl-side-panel h2{font-size:23px}.cl-access-actions{flex-direction:row;align-items:center;gap:20px}.cl-price{font-size:40px}.cl-section-heading{flex-direction:column;align-items:flex-start;gap:8px;margin-top:28px}.cl-chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 12px}.cl-chapter-copy{padding:12px 0}.cl-chapter-copy h3{min-height:40px;font-size:17px}.cl-chapter-copy p{min-height:80px;font-size:13px}.cl-chapter-copy>span{font-size:12px}.cl-cover{aspect-ratio:4/3}.cl-cover-action{width:28px;height:28px;bottom:8px;right:8px}.cl-cover-action svg{width:15px}.cl-completed{padding:4px 6px;font-size:11px;top:6px;left:6px}.cl-reader-toolbar{align-items:flex-start;gap:12px}.cl-reader-toolbar button,.cl-reader-toolbar>a{font-size:12px}.cl-reader-toolbar>a{padding:11px 0}.cl-reader-banner{grid-template-columns:1fr;gap:0}.cl-reader-banner img{aspect-ratio:16/9;height:auto}.cl-reader-banner>div{padding:24px}.cl-reader-banner h2{font-size:26px}.cl-reading-layout{grid-template-columns:1fr;gap:28px}.cl-reading-layout summary{font-size:16px}.cl-prompt-layout{grid-template-columns:1fr;gap:18px}.cl-prompt-layout aside{grid-template-columns:1fr 1fr;display:grid}.classroom .cl-prompt-layout aside button{padding:12px;font-size:13px}.classroom footer{flex-wrap:wrap;gap:15px}.classroom footer>span{display:none}.cl-teaser{width:96vw;padding:10px}.cl-progress{margin:22px 0}}@media (prefers-reduced-motion:reduce){.classroom *{scroll-behavior:auto!important;transition:none!important}.cl-chapter:hover .cl-cover>img{transform:none}}@media (max-width:700px){.cl-feature{background:var(--cl-panel);min-height:0}.cl-feature>img{z-index:auto;aspect-ratio:16/9;object-fit:cover;object-position:center;height:auto;display:block;position:relative;inset:auto}.cl-feature:after{display:none}.cl-feature-copy{background:0 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