:root{--color-black:#000;--color-white:#fff;--color-gray-1:#f3f3f3;--color-gray-2:#ddd;--color-gray-3:#666;--color-gray-4:#333;--color-green-1:#deedd1;--color-green-2:#a9ef3c;--color-green-3:#008500;--color-green-4:#0a2600;--color-blue-1:#d1edf0;--color-blue-2:#20deed;--color-blue-3:#0073dd;--color-blue-4:#001269;--color-purple-1:#e8e5ff;--color-purple-2:#8480ff;--color-purple-3:#615cd9;--color-purple-4:#2e057a;--color-yellow-1:#fff0cf;--color-yellow-2:#fd0;--color-yellow-3:#b55400;--color-yellow-4:#401c00;--color-red-1:#ffe0d9;--color-red-2:#f44;--color-red-3:#c00;--color-red-4:#520000;--color-pink-1:#ffdefc;--color-pink-2:#f6f;--color-pink-3:#c70073;--color-pink-4:#4f002e;--gradient-linear-dark-green:linear-gradient(to bottom, #000 0%, #000 40%, #001269 60%, #0073e5 80%, #a9ef3c 100%);--gradient-linear-dark-red:linear-gradient(to bottom, #000 0%, #000 40%, #2e057a 60%, #c70073 80%, #f44 100%);--gradient-linear-dark-pink:linear-gradient(to bottom, #000 0%, #000 40%, #001269 60%, #615cd9 80%, #f6f 100%);--gradient-linear-dark-yellow:linear-gradient(to bottom, #000 0%, #000 40%, #520000 60%, #b55500 80%, #fd0 100%);--gradient-linear-dark-blue:linear-gradient(to bottom, #000 0%, #000 40%, #2e057a 60%, #615cd9 80%, #20deed 100%);--gradient-linear-light-green:linear-gradient(to bottom, #fff 0%, #fff 40%, #20deed 80%, #a9ef3c 100%);--gradient-linear-light-red:linear-gradient(to bottom, #fff 0%, #fff 40%, #f6f 80%, #f44 100%);--gradient-linear-light-pink:linear-gradient(to bottom, #fff 0%, #fff 40%, #8480ff 80%, #f6f 100%);--gradient-linear-light-yellow:linear-gradient(to bottom, #fff 0%, #fff 40%, #fd0 80%, #f44 100%);--gradient-linear-light-blue:linear-gradient(to bottom, #fff 0%, #fff 40%, #8480ff 80%, #20deed 100%);--gradient-linear-light-alt-green:linear-gradient(to bottom, #ddd 0%, #ddd 40%, #20deed 80%, #a9ef3c 100%);--gradient-linear-light-alt-red:linear-gradient(to bottom, #ddd 0%, #ddd 40%, #f6f 80%, #f44 100%);--gradient-linear-light-alt-pink:linear-gradient(to bottom, #ddd 0%, #ddd 40%, #8480ff 80%, #f6f 100%);--gradient-linear-light-alt-yellow:linear-gradient(to bottom, #ddd 0%, #ddd 40%, #fd0 80%, #f44 100%);--gradient-linear-light-alt-blue:linear-gradient(to bottom, #ddd 0%, #ddd 40%, #8480ff 80%, #20deed 100%);--gradient-contour-blue-green:radial-gradient(circle, #20deed 0%, #a9ef3c 50%, #ddd 100%);--gradient-contour-purple-pink:radial-gradient(circle, #8c5fff 0%, #f6f 50%, #ddd 100%);--gradient-contour-red-pink:radial-gradient(circle, #f44 0%, #f6f 50%, #ddd 100%);--gradient-contour-red-yellow:radial-gradient(circle, #f44 0%, #fd0 50%, #ddd 100%);--gradient-contour-purple-blue:radial-gradient(circle, #8c5fff 0%, #20deed 50%, #ddd 100%);--font-family-exposure:"Exposure VAR", Georgia, "Times New Roman", serif;--font-family-gt-america:"GT America", -apple-system, "Helvetica Neue", Arial, sans-serif;--font-exposure-regular:"EXPO" -10;--font-exposure-bold:"EXPO" -50;--font-size-display:64px;--line-height-display:1.05;--font-size-h1:40px;--line-height-h1:1.1;--font-size-h2:32px;--line-height-h2:1.25;--font-size-h3:24px;--line-height-h3:1.25;--font-size-h4:20px;--line-height-h4:1.3;--font-size-prose:16px;--line-height-prose:1.5;--font-size-body-lg:20px;--line-height-body-lg:1.4;--font-size-body:16px;--line-height-body:1.5;--font-size-body-sm:14px;--line-height-body-sm:1.45;--font-size-caption:12px;--line-height-caption:1.4;--space-8:8px;--space-16:16px;--space-24:24px;--space-32:32px;--space-48:48px;--space-64:64px;--grid-page-margin:64px;--grid-gutter:32px;--grid-column:272px;--card-padding:48px;--radius-default:8px}.field-h2{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:var(--font-size-h2);line-height:var(--line-height-h2)}.field-h3{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:var(--font-size-h3);line-height:var(--line-height-h3)}.field-prose{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:var(--font-size-prose);line-height:var(--line-height-prose)}
@font-face{font-family:Exposure VAR;src:url(/fonts/Exposure.woff2)format("woff2-variations");font-weight:100 900;font-style:normal;font-display:swap}@font-face{font-family:Exposure VAR;src:url(/fonts/Exposure-Italic.woff2)format("woff2-variations");font-weight:100 900;font-style:italic;font-display:swap}@font-face{font-family:GT America;src:url(/fonts/GT-America-Standard-Regular.woff2)format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:GT America;src:url(/fonts/GT-America-Standard-Medium.woff2)format("woff2");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:GT America;src:url(/fonts/GT-America-Standard-Bold.woff2)format("woff2");font-weight:700;font-style:normal;font-display:swap}:root{--color-bg:var(--color-white);--color-surface:var(--color-gray-1);--color-surface-alt:var(--color-gray-2);--color-text:var(--color-gray-4);--color-text-strong:var(--color-black);--color-text-muted:var(--color-gray-3);--color-text-inverse:var(--color-white);--color-border:var(--color-gray-2);--color-border-strong:var(--color-gray-3);--color-link:var(--color-blue-3);--color-link-hover:var(--color-blue-4);--color-primary:var(--color-blue-3);--color-primary-hover:var(--color-blue-4);--color-primary-fg:var(--color-white);--color-focus:var(--color-blue-3);--color-disabled-bg:var(--color-gray-2);--color-disabled-fg:var(--color-gray-3);--gradient-hero:var(--gradient-linear-light-blue);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}.dark{--color-bg:var(--color-black);--color-surface:var(--color-gray-4);--color-surface-alt:var(--color-gray-3);--color-text:var(--color-gray-1);--color-text-strong:var(--color-white);--color-text-muted:var(--color-gray-2);--color-text-inverse:var(--color-black);--color-border:var(--color-gray-4);--color-border-strong:var(--color-gray-3);--color-link:var(--color-blue-2);--color-link-hover:var(--color-green-2);--color-primary:var(--color-blue-2);--color-primary-hover:var(--color-green-2);--color-primary-fg:var(--color-black);--color-focus:var(--color-blue-2);--color-disabled-bg:var(--color-gray-4);--color-disabled-fg:var(--color-gray-3);--gradient-hero:var(--gradient-linear-dark-blue);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}html{-moz-text-size-adjust:100%;text-size-adjust:100%}body{background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-family-gt-america);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:1rem;line-height:1.5}h1,h2,h3,h4{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);color:var(--color-text-strong);margin:0 0 .5em}a{color:var(--color-link);text-underline-offset:.15em}a:hover{color:var(--color-link-hover)}:focus-visible{box-shadow:0 0 0 3px var(--color-focus);border-radius:var(--radius-default);outline:none}.text-display{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-bold);font-size:clamp(2.5rem,5vw + 1rem,4rem);line-height:1.05}.text-h1{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:clamp(2rem,3vw + 1rem,2.5rem);line-height:1.1}.text-h2{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:2rem;line-height:1.25}.text-h3{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:1.5rem;line-height:1.25}.text-h4{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:1.25rem;line-height:1.3}.text-prose{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:1rem;line-height:1.5}.text-body-lg{font-family:var(--font-family-gt-america);font-size:1.25rem;line-height:1.4}.text-body{font-family:var(--font-family-gt-america);font-size:1rem;line-height:1.5}.text-body-sm{font-family:var(--font-family-gt-america);font-size:.875rem;line-height:1.45}.text-caption{font-family:var(--font-family-gt-america);font-size:.75rem;line-height:1.4}.font-exposure-regular{font-variation-settings:var(--font-exposure-regular)}.font-exposure-bold{font-variation-settings:var(--font-exposure-bold)}.btn{font-family:var(--font-family-gt-america);border-radius:var(--radius-default);cursor:pointer;background-color:var(--color-primary);color:var(--color-primary-fg);border:none;justify-content:center;align-items:center;gap:.5em;padding:.75rem 1.5rem;font-size:1rem;line-height:1;transition:background-color .12s;display:inline-flex}.btn:hover{background-color:var(--color-primary-hover)}.btn:disabled{background-color:var(--color-disabled-bg);color:var(--color-disabled-fg);cursor:not-allowed}.btn-outline{color:var(--color-text-strong);border:1px solid var(--color-border-strong);background-color:#0000}.btn-outline:hover{background-color:var(--color-surface)}
:root{--measure:34rem;--font-exposure-crisp:"EXPO" 0}body{font-family:var(--font-family-gt-america);font-size:var(--font-size-body);line-height:var(--line-height-body)}.app{max-width:calc(var(--measure) + var(--space-64) * 2);padding:var(--space-32) var(--space-24) calc(var(--space-64) * 2 + var(--space-32));margin:0 auto}header{justify-content:space-between;align-items:flex-start;gap:var(--space-16);padding-bottom:var(--space-24);border-bottom:1px solid var(--color-border);display:flex}header h1{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:var(--font-size-h3);line-height:var(--line-height-h3);color:var(--color-text-strong);margin:0}.sub{margin:var(--space-8) 0 0;color:var(--color-text-muted);font-size:var(--font-size-body-sm);line-height:var(--line-height-body-sm)}.who{color:var(--color-text-muted);font-size:var(--font-size-caption);margin-right:var(--space-8)}button.link{cursor:pointer;color:var(--color-link);font-family:var(--font-family-gt-america);font-size:var(--font-size-body-sm);text-underline-offset:.15em;background:0 0;border:0;padding:0;text-decoration:underline}button.link:hover{color:var(--color-link-hover)}.crumb{margin:0 0 var(--space-8);font-size:var(--font-size-caption)}.crumb a{text-decoration:none}.crumb a:hover{text-decoration:underline}.courses{margin:var(--space-32) 0 0;padding:0;list-style:none}.courses li{border-bottom:1px solid var(--color-border)}.courses a{padding:var(--space-24) 0;color:inherit;text-decoration:none;display:block}.courses a:hover .course-title{color:var(--color-link)}.course-title{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:var(--font-size-h4);line-height:var(--line-height-h4);color:var(--color-text-strong);display:block}.course-desc{color:var(--color-text);margin-top:var(--space-8);display:block}.course-meta{color:var(--color-text-muted);font-size:var(--font-size-caption);margin-top:var(--space-8);display:block}.empty{color:var(--color-text-muted);padding:var(--space-48) 0;max-width:var(--measure)}.examples{color:var(--color-text-muted);font-size:var(--font-size-body-sm)}.exchange{padding:var(--space-32) 0;border-bottom:1px solid var(--color-border)}.exchange:last-of-type{border-bottom:0}.question{font-family:var(--font-family-gt-america);font-size:var(--font-size-body);font-weight:500;line-height:var(--line-height-body);color:var(--color-text-strong);margin:0 0 var(--space-16);max-width:var(--measure)}.answer{max-width:var(--measure);font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-crisp);font-size:var(--font-size-prose);line-height:var(--line-height-prose);color:var(--color-text)}.answer p{margin:0 0 var(--space-16)}.answer p:last-child{margin-bottom:0}.answer strong{color:var(--color-text-strong);font-variation-settings:var(--font-exposure-crisp);font-weight:400}.answer p:has(>strong:only-child){margin-top:var(--space-24)}.answer p>strong:only-child{font-size:var(--font-size-h4);line-height:var(--line-height-h4);font-variation-settings:var(--font-exposure-crisp)}.answer p:first-child:has(>strong:only-child){margin-top:0}.answer blockquote.passage{margin:0 0 var(--space-16);padding-left:var(--space-16);border-left:2px solid var(--color-primary);color:var(--color-text-strong);white-space:pre-wrap}.thinking{background:var(--color-text-muted);vertical-align:text-bottom;width:.5rem;height:1rem;animation:1.1s steps(2,end) infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}@media (prefers-reduced-motion:reduce){.thinking{opacity:.5;animation:none}}.error{color:var(--color-red-3);background:var(--color-red-1);padding:var(--space-16);border-radius:var(--radius-default);max-width:var(--measure);font-size:var(--font-size-body-sm);line-height:var(--line-height-body-sm)}.sources{margin-top:var(--space-24);max-width:var(--measure);font-size:var(--font-size-body-sm)}.sources summary{cursor:pointer;color:var(--color-text-muted);text-underline-offset:.15em;text-decoration:underline}.sources summary:hover{color:var(--color-text)}.sources ol{margin:var(--space-16) 0 0;padding-left:var(--space-16)}.sources li{margin-bottom:var(--space-16)}.cite{color:var(--color-primary)}.sources blockquote{margin:var(--space-8) 0 0;padding-left:var(--space-8);border-left:1px solid var(--color-border);color:var(--color-text-muted);font-size:var(--font-size-caption);line-height:var(--line-height-caption)}.dock{padding:var(--space-16) var(--space-24) calc(var(--space-8) + env(safe-area-inset-bottom));background:var(--color-bg);border-top:1px solid var(--color-border);position:fixed;bottom:0;left:0;right:0}.composer{gap:var(--space-8);max-width:calc(var(--measure) + var(--space-64) * 2);margin:0 auto;display:flex}.composer input{padding:.75rem var(--space-16);font-family:var(--font-family-gt-america);font-size:var(--font-size-body);color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border-strong);border-radius:var(--radius-default);flex:1}.disclaimer{max-width:calc(var(--measure) + var(--space-64) * 2);margin:var(--space-8) auto 0;font-size:var(--font-size-caption);line-height:var(--line-height-caption);color:var(--color-text-muted)}.auth{max-width:26rem;padding:calc(var(--space-64) * 1.5) var(--space-24);margin:0 auto}.auth h1{font-family:var(--font-family-exposure);font-variation-settings:var(--font-exposure-regular);font-size:var(--font-size-h2);line-height:var(--line-height-h2);color:var(--color-text-strong);margin:0 0 var(--space-16)}.lede{color:var(--color-text)}.auth form{gap:var(--space-8);margin:var(--space-32) 0;flex-direction:column;display:flex}.auth input{padding:.75rem var(--space-16);font-family:var(--font-family-gt-america);font-size:var(--font-size-body);color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border-strong);border-radius:var(--radius-default)}.note{color:var(--color-text-muted);font-size:var(--font-size-body-sm)}[data-accent=green]{--color-primary:var(--color-green-3);--color-primary-hover:var(--color-green-4);--color-primary-fg:var(--color-white);--color-link:var(--color-green-3);--color-link-hover:var(--color-green-4);--color-focus:var(--color-green-3)}[data-accent=blue]{--color-primary:var(--color-blue-3);--color-primary-hover:var(--color-blue-4);--color-primary-fg:var(--color-white);--color-link:var(--color-blue-3);--color-link-hover:var(--color-blue-4);--color-focus:var(--color-blue-3)}[data-accent=purple]{--color-primary:var(--color-purple-3);--color-primary-hover:var(--color-purple-4);--color-primary-fg:var(--color-white);--color-link:var(--color-purple-3);--color-link-hover:var(--color-purple-4);--color-focus:var(--color-purple-3)}[data-accent=yellow]{--color-primary:var(--color-yellow-3);--color-primary-hover:var(--color-yellow-4);--color-primary-fg:var(--color-white);--color-link:var(--color-yellow-3);--color-link-hover:var(--color-yellow-4);--color-focus:var(--color-yellow-3)}[data-accent=red]{--color-primary:var(--color-red-3);--color-primary-hover:var(--color-red-4);--color-primary-fg:var(--color-white);--color-link:var(--color-red-3);--color-link-hover:var(--color-red-4);--color-focus:var(--color-red-3)}[data-accent=pink]{--color-primary:var(--color-pink-3);--color-primary-hover:var(--color-pink-4);--color-primary-fg:var(--color-white);--color-link:var(--color-pink-3);--color-link-hover:var(--color-pink-4);--color-focus:var(--color-pink-3)}.dark [data-accent=green]{--color-primary:var(--color-green-2);--color-primary-hover:var(--color-blue-2);--color-primary-fg:var(--color-black);--color-link:var(--color-green-2);--color-link-hover:var(--color-blue-2);--color-focus:var(--color-green-2)}.dark [data-accent=blue]{--color-primary:var(--color-blue-2);--color-primary-hover:var(--color-green-2);--color-primary-fg:var(--color-black);--color-link:var(--color-blue-2);--color-link-hover:var(--color-green-2);--color-focus:var(--color-blue-2)}.dark [data-accent=purple]{--color-primary:var(--color-purple-2);--color-primary-hover:var(--color-pink-2);--color-primary-fg:var(--color-black);--color-link:var(--color-purple-2);--color-link-hover:var(--color-pink-2);--color-focus:var(--color-purple-2)}.dark [data-accent=yellow]{--color-primary:var(--color-yellow-2);--color-primary-hover:var(--color-green-2);--color-primary-fg:var(--color-black);--color-link:var(--color-yellow-2);--color-link-hover:var(--color-green-2);--color-focus:var(--color-yellow-2)}.dark [data-accent=red]{--color-primary:var(--color-red-2);--color-primary-hover:var(--color-pink-2);--color-primary-fg:var(--color-black);--color-link:var(--color-red-2);--color-link-hover:var(--color-pink-2);--color-focus:var(--color-red-2)}.dark [data-accent=pink]{--color-primary:var(--color-pink-2);--color-primary-hover:var(--color-purple-2);--color-primary-fg:var(--color-black);--color-link:var(--color-pink-2);--color-link-hover:var(--color-purple-2);--color-focus:var(--color-pink-2)}.course-dot{width:var(--space-8);height:var(--space-8);background:var(--color-primary);margin-right:var(--space-8);vertical-align:baseline;border-radius:50%;display:inline-block}