:root{--bg-page:#fff;--bg-page-alt:#f7f7fc;--bg-card:#fff;--bg-card-strong:#f4f4fb;--bg-card-hover:#eeeef9;--border-soft:#1e20441f;--border-medium:#1e204438;--border-bright:#6d4aff80;--border-input:#1e20448c;--text-primary:#1a1a1a;--text-secondary:#45496b;--text-muted:#5c6180;--violet-text:#5836e6;--violet-subtle:#6d4aff17;--violet-ring:#6d4aff;--success:#167a3c;--danger:#c62740;--warning:#8a5a00;--orange-accent:#9a4a00;--violet:#6d4aff;--violet-hover:#7452ff;--violet-active:#5836e6;--pink:#f5a9b8;--blue:#5bcefa;--brand-gradient:linear-gradient(100deg, var(--pink) 0%, var(--violet) 52%, var(--blue) 100%);--font-ui:"Inter", system-ui, -apple-system, sans-serif;--font-display:"Manrope", "Inter", system-ui, sans-serif;--font-code:"JetBrains Mono", ui-monospace, monospace;--fs-h1:clamp(1.75rem, 2.6vw + .9rem, 2.125rem);--fs-h2:clamp(1.25rem, 1.4vw + .85rem, 1.5rem);--fs-h3:1rem;--fs-read:.875rem;--fs-input:.875rem;--fs-ui:.8125rem;--fs-button:.8125rem;--fs-meta:.75rem;--lh-heading:1.15;--lh-body:1.6;--space-para:1.5em;--target-min:44px;--rail-row-h:48px;--radius-card:16px;--radius-control:10px;--radius-pill:999px;--measure:74ch;--content-max:var(--measure);--page-max:1120px;--page-gutter:clamp(16px, 4vw, 32px);--scrollbar-allow:20px;--rail-collapsed-w:48px;--header-h:64px}@media (max-width:600px){:root{--fs-read:.9375rem;--fs-input:.9375rem;--header-h:56px}}:root[data-theme=dark]{--bg-page:#0a0b1e;--bg-page-alt:#0d0f26;--bg-card:#14162f;--bg-card-strong:#191c3a;--bg-card-hover:#1f2347;--border-soft:#9298d629;--border-medium:#9298d64d;--border-bright:#a5afff75;--border-input:#9298d6a6;--text-primary:#f5f6ff;--text-secondary:#bcc2e2;--text-muted:#8d94b8;--violet-text:#a08cff;--violet-subtle:#6d4aff29;--violet-ring:#8b73ff;--success:#4ade80;--danger:#ff6b81;--warning:#fbbf24;--orange-accent:#ff9b3d}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}
:root{--font-ui:var(--font-inter), "Inter", system-ui, -apple-system, sans-serif;--font-display:var(--font-manrope), "Manrope", "Inter", system-ui, sans-serif;--font-code:var(--font-jetbrains-mono), "JetBrains Mono", ui-monospace, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:before,:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px);font-size:100%}html:has([data-lesson-shell]){scroll-padding-top:0}body{background:var(--bg-page);min-height:100dvh;color:var(--text-primary);font-family:var(--font-ui);font-size:var(--fs-read);line-height:var(--lh-body);-webkit-font-smoothing:antialiased}img,picture,svg,video{max-width:100%;display:block}input,button,textarea,select{font:inherit;color:inherit}h1,h2,h3,h4{font-family:var(--font-display);line-height:var(--lh-heading);text-wrap:balance}h1{font-size:var(--fs-h1)}h2{font-size:var(--fs-h2)}h3{font-size:var(--fs-h3)}p,li{font-size:var(--fs-read);text-align:start}p+p{margin-block-start:var(--space-para)}main{display:block}a{color:var(--violet-text);text-underline-offset:.18em}a:hover{text-decoration-thickness:2px}code,kbd,samp,pre{font-family:var(--font-code)}small{font-size:var(--fs-meta)}:focus-visible{outline:3px solid var(--violet-ring);outline-offset:2px;border-radius:4px}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;min-height:var(--target-min);border-radius:var(--radius-control);background:var(--violet);color:#fff;font-size:var(--fs-ui);align-items:center;padding:0 16px;font-weight:600;text-decoration:none;transition:top .12s;display:inline-flex;position:absolute;top:-100px;left:8px}.skip-link:focus-visible{top:8px}:not(pre)>code{overflow-wrap:anywhere;word-break:break-word}