.astro-route-announcer{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;top:0;left:0;overflow:hidden}.header{inline-size:100%;max-inline-size:var(--container-max-width);padding:var(--space-sm) var(--space-md);border-block-end:var(--rule-thin) solid var(--rule-light);align-items:center;gap:var(--space-sm) var(--space-lg);grid-template-columns:1fr auto;grid-template-areas:"brand toggle""nav nav";margin-inline:auto;display:grid}.header__brand{font-size:var(--text-base);font-weight:700;line-height:var(--leading-tight);color:var(--text-title);grid-area:brand;text-decoration-line:none}.header__brand:hover{text-decoration-line:underline}.header__nav{grid-area:nav}.header>.theme-toggle{grid-area:toggle}.header__list{gap:var(--space-2xs) var(--space-md);flex-wrap:wrap;display:flex}.header__link{padding-block:var(--space-2xs);font-size:var(--text-sm);font-weight:500;line-height:var(--leading-tight);color:var(--text-muted);text-decoration-line:none;display:inline-block}.header__link:hover{color:var(--text-title);text-decoration-line:underline;text-decoration-thickness:var(--rule-thin);text-underline-offset:var(--space-2xs)}.header__link[aria-current=page]{color:var(--text-title);text-decoration-line:underline;text-decoration-thickness:var(--rule-thick);text-underline-offset:var(--space-2xs);font-weight:600}@media (width>=40rem){.header{padding-inline:var(--space-lg)}}@media (width>=64rem){.header{padding-inline:var(--space-xl);grid-template-columns:auto 1fr auto;grid-template-areas:"brand nav toggle"}}@media (prefers-reduced-motion:no-preference){.header{view-transition-name:site-header}}.theme-toggle{display:block}.theme-toggle__button{padding:var(--space-2xs) var(--space-sm);font-family:var(--font-sans);font-size:var(--text-sm);font-weight:600;line-height:var(--leading-tight);color:var(--text-title);border:var(--rule-thin) solid var(--rule-light);border-radius:var(--radius-sm);cursor:pointer;background-color:#0000}.theme-toggle__button:hover{text-underline-offset:var(--space-3xs);text-decoration-line:underline}.footer{inline-size:100%;max-inline-size:var(--container-max-width);padding:var(--space-lg) var(--space-md) var(--space-xl);border-block-start:var(--rule-thin) solid var(--rule-light);gap:var(--space-sm);font-size:var(--text-sm);line-height:var(--leading-normal);color:var(--text-muted);margin-inline:auto;display:grid}.footer__notice{max-inline-size:var(--reading-max-width)}.footer__links{gap:var(--space-xs) var(--space-md);flex-wrap:wrap;display:flex}.footer__link{color:var(--text-muted)}.footer__link:hover{color:var(--text-title)}.footer__meta{font-family:var(--font-mono);font-size:var(--text-xs);font-variant-numeric:tabular-nums}@media (width>=40rem){.footer{padding-inline:var(--space-lg)}}@media (width>=64rem){.footer{padding-inline:var(--space-xl)}}@media (prefers-reduced-motion:no-preference){.footer{view-transition-name:site-footer}}:root{--space-3xs:.125rem;--space-2xs:.25rem;--space-xs:.5rem;--space-sm:.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--reading-max-width:72ch;--container-max-width:1280px;--font-serif:"Charter", "Georgia", "Iowan Old Style", serif;--font-sans:var(--font-inter,"Inter"), -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:var(--font-jetbrains-mono,"JetBrains Mono"), "Roboto Mono", "SFMono-Regular", Consolas, Menlo, monospace;--text-2xs:.6875rem;--text-xs:.75rem;--text-sm:.8125rem;--text-base:.9375rem;--text-md:1.0625rem;--text-lg:1.25rem;--text-xl:1.5rem;--text-2xl:1.875rem;--text-3xl:2.25rem;--leading-none:1;--leading-tight:1.25;--leading-normal:1.5;--leading-relaxed:1.65;--rule-thick:2px;--rule-thin:1px;--radius-sm:.125rem;--radius-md:.25rem;--domain-1-color:#8ab4f8;--domain-2-color:#c58af9;--domain-3-color:#4db6ac;--domain-4-color:#fcad70;--t1-env-color:#60a5fa;--t2-prune-color:#fbbf24;--t3-boundary-color:#34d399;--exam-canonical:#4ade80;--exam-trap:#f87171;color-scheme:dark;--bg-canvas:#0c0e12;--bg-surface:#141820;--bg-surface-elevated:#1c222c;--bg-subtle:#242b38;--rule-heavy:#f1f5f9;--rule-light:#262c36;--rule-subtle:#1a1f27;--text-title:#fff;--text-body:#cbd5e1;--text-muted:#94a3b8;--text-subtle:#7d8ba1;--accent-primary:#38bdf8;--accent-subtle:#38bdf81f;--text-on-accent:#0c0e12}[data-theme=light]{color-scheme:light;--bg-canvas:#fcfcfd;--bg-surface:#fff;--bg-surface-elevated:#f8fafc;--bg-subtle:#f1f5f9;--rule-heavy:#0f172a;--rule-light:#d1d5db;--rule-subtle:#e5e7eb;--text-title:#0f172a;--text-body:#1e293b;--text-muted:#475569;--text-subtle:#5b6b82;--accent-primary:#0369a1;--accent-subtle:#e0f2fe;--text-on-accent:#fff;--domain-1-color:#1967d2;--domain-2-color:#8430ce;--domain-3-color:#00796b;--domain-4-color:#a35a00;--t1-env-color:#1d4ed8;--t2-prune-color:#b45309;--t3-boundary-color:#047857;--exam-canonical:#15803d;--exam-trap:#b91c1c}*,:before,:after{box-sizing:border-box}body,h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}ul[class],ol[class]{margin:0;padding:0;list-style:none}img,svg{max-inline-size:100%;display:block}button,input,select,textarea{font:inherit;color:inherit}body{background-color:var(--bg-canvas);color:var(--text-body);font-family:var(--font-sans);font-size:var(--text-base);font-weight:400;line-height:var(--leading-normal);accent-color:var(--accent-primary);flex-direction:column;min-block-size:100dvh;display:flex}main{flex:1 0 auto}h1{font-family:var(--font-sans);font-size:var(--text-2xl);font-weight:600;line-height:var(--leading-tight);color:var(--text-title)}h2{font-family:var(--font-sans);font-size:var(--text-xl);font-weight:600;line-height:var(--leading-tight);color:var(--text-title)}h3{font-family:var(--font-sans);font-size:var(--text-lg);font-weight:600;line-height:var(--leading-tight);color:var(--text-title)}a{color:var(--accent-primary);text-decoration-line:underline;text-decoration-thickness:var(--rule-thin);text-underline-offset:var(--space-3xs)}a:hover{text-decoration-thickness:var(--rule-thick)}.page{inline-size:100%;max-inline-size:var(--container-max-width);padding-block:var(--space-xl) var(--space-3xl);padding-inline:var(--space-md);margin-inline:auto}@media (width>=40rem){.page{padding-inline:var(--space-lg)}}@media (width>=64rem){.page{padding-inline:var(--space-xl)}}.prose{max-inline-size:var(--reading-max-width);font-family:var(--font-serif);font-size:var(--text-md);line-height:var(--leading-relaxed)}.prose>*+*{margin-block-start:var(--space-md)}.prose>h2+*,.prose>h3+*{margin-block-start:var(--space-xs)}.prose>*+h2,.prose>*+h3{margin-block-start:var(--space-xl)}.prose ul,.prose ol{padding-inline-start:var(--space-lg)}.page-header{gap:var(--space-xs);margin-block-end:var(--space-2xl);display:grid}.page-lead{max-inline-size:var(--reading-max-width);font-size:var(--text-md);line-height:var(--leading-normal);color:var(--text-muted)}.section+.section{margin-block-start:var(--space-2xl)}.section>h2{border-block-start:var(--rule-thin) solid var(--rule-light);margin-block-end:var(--space-md);padding-block-start:var(--space-md)}:focus-visible{outline:var(--rule-thick) solid var(--accent-primary);outline-offset:var(--space-3xs)}.skip-link{z-index:1;padding:var(--space-xs) var(--space-md);background-color:var(--accent-primary);color:var(--text-on-accent);font-size:var(--text-sm);font-weight:600;line-height:var(--leading-tight);border-radius:var(--radius-sm);text-decoration-line:none;position:absolute;inset-block-start:var(--space-xs);inset-inline-start:var(--space-xs)}.skip-link:not(:focus){opacity:0;pointer-events:none}@media (prefers-reduced-motion:no-preference){@view-transition{navigation:auto}@keyframes gail-page-fade-out{to{opacity:0}}@keyframes gail-page-lift-in{0%{opacity:0;transform:translateY(var(--space-xs))}}::view-transition-old(root){animation:.1s ease-out both gail-page-fade-out}::view-transition-new(root){animation:.2s cubic-bezier(.16,1,.3,1) both gail-page-lift-in}::view-transition-group(site-header),::view-transition-old(site-header),::view-transition-new(site-header),::view-transition-group(site-footer),::view-transition-old(site-footer),::view-transition-new(site-footer){animation-duration:0s}}