.own-ai-cover{background:var(--navy);border-radius:10px;width:100%;max-width:600px;padding:14px;box-shadow:0 14px 30px #00000040;container-type:inline-size}.own-ai-cover__bar{gap:6px;padding:4px 4px 12px;display:flex}.own-ai-cover__bar span{background:#68728a;border-radius:50%;width:11px;height:11px}.own-ai-cover__panes{grid-template-columns:1.1fr 1fr;gap:12px;display:grid}.own-ai-cover__pane{background:var(--card);border-radius:8px;min-width:0;padding:12px}.own-ai-cover__label{border:1px solid var(--line);background:var(--deep);color:var(--text);letter-spacing:.1em;text-transform:uppercase;border-radius:4px;margin-bottom:14px;padding:9px 10px;font-family:system-ui,sans-serif;font-size:clamp(9px,2.2cqi,11px);font-weight:700;line-height:1.5;display:block}.own-ai-cover .own-ai-cover__code{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;padding:0;font:clamp(8px,1.85cqi,10.5px)/1.65 Consolas,Liberation Mono,monospace;overflow:visible}.own-ai-cover .own-ai-cover__code code{color:var(--gold);font:inherit;background:0 0;padding:0}.own-ai-cover__output{flex-direction:column;gap:0;display:flex}.own-ai-cover__preview h1{font-family:var(--display);margin:0 0 6px;font-size:clamp(13px,3.1cqi,18px);font-weight:600;line-height:1.25}.own-ai-cover__preview>p:first-of-type{color:var(--muted);margin-bottom:14px;font-size:clamp(12px,2.65cqi,15px);line-height:1.4}.own-ai-cover__preview h2{color:var(--gold);font-family:var(--display);margin:12px 0 4px;font-size:clamp(12px,2.8cqi,16px);font-weight:600;line-height:1.25}.own-ai-cover__preview p{color:var(--muted);margin:0;font-size:clamp(11px,2.5cqi,14px);line-height:1.4}.own-ai-cover__preview .callout{border-left-width:2px;gap:4px;margin:16px 0 0;padding:8px 10px;font-size:clamp(11px,2.5cqi,14px);line-height:1.4;display:grid}.own-ai-cover__preview .callout>strong{color:var(--gold);font-size:inherit}.course-card.course-card--illustrated{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}.course-cover.course-cover--own-ai{justify-content:center;align-items:center}.course-hero-layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:48px;display:grid}.course-hero-layout>div{min-width:0}@media (width<=1000px){.course-hero-layout{grid-template-columns:1fr;gap:24px}}@media (width<=760px){.course-cover.course-cover--own-ai{padding:16px}.own-ai-cover{padding:10px}.own-ai-cover__panes{gap:8px}.own-ai-cover__pane{padding:10px}}pre code.hljs{padding:1em;display:block;overflow-x:auto}code.hljs{padding:3px 5px}.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}:root{font-family:var(--body);background:var(--navy);color:var(--text);font-synthesis:none}*{box-sizing:border-box}body{margin:0;font-size:20px;line-height:1.6}button,input,textarea{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:var(--text);border:1px solid var(--line);background:0 0;border-radius:4px;padding:.55rem 1rem;line-height:1.4}button:hover{border-color:var(--gold);background:#f6c7850c}a{color:var(--gold);text-underline-offset:5px}a:hover{color:#ffe4bc}img{max-width:100%;height:auto}h1,h2,h3{font-family:var(--display);text-wrap:balance;font-weight:600;line-height:1.3}h1{letter-spacing:-.035em;margin:.6rem 0 1.6rem;font-size:clamp(2rem,4.2vw,3.8rem)}h2{color:var(--gold);margin:2.4rem 0 1.1rem;font-size:1.7rem}h3{margin:1.6rem 0 .8rem;font-size:1.15rem}p{margin:0 0 1.1rem}ul,ol{padding-left:1.4rem}li+li{margin-top:.5rem}main:focus-visible{outline:none}:focus-visible{outline:3px solid var(--gold);outline-offset:5px}::selection{color:var(--deep);background:var(--gold)}.wide{width:min(1240px,100% - 96px);margin:auto}.reading{width:100%;max-width:76ch;margin:auto}.eyebrow{letter-spacing:.16em;color:var(--gold);font:600 .72rem/1.6 system-ui,sans-serif}.intro{color:#e4d9d9;max-width:56ch;font-size:1.45rem}.muted{color:var(--muted)}.small{font-size:1rem;line-height:1.5}.success{color:var(--success)}.cnt-highlight{color:var(--gold);font-weight:700}.visual-asset-embed{margin:32px 0}.visual-asset-embed iframe{background:var(--deep);border:0;border-radius:6px;width:100%;display:block}.visual-asset-embed figcaption{color:var(--muted);margin-top:12px;font-size:1rem}.comparison{grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;gap:20px;margin:32px 0;display:grid}.comparison-card{--comparison-accent:var(--muted);--comparison-tint:#b6becd0c;border:1px solid var(--line);border-top:3px solid var(--comparison-accent);background:var(--comparison-tint);border-radius:6px;min-width:0;padding:24px}.comparison-card:last-child{--comparison-accent:var(--success);--comparison-tint:#9addb60c}.comparison-token{border:1px solid var(--comparison-accent);color:var(--comparison-accent);letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:5px 10px;font:600 .68rem/1.4 system-ui,sans-serif;display:inline-block}.comparison-card h3{margin:20px 0 16px;font-size:1.15rem}.comparison-content{font-size:1.1rem}.comparison-content>:last-child{margin-bottom:0}.comparison-content ul{margin:0;padding-left:20px}.comparison-content li+li{margin-top:16px}@media (width<=700px){.comparison{grid-template-columns:1fr}}.actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.primary{background:var(--gold);color:var(--deep);border:1px solid var(--gold);letter-spacing:.09em;justify-content:space-between;align-items:center;gap:1.4rem;min-height:48px;padding:1rem 1.4rem;font:600 .74rem/1.5 system-ui,sans-serif;display:inline-flex}.primary:hover{color:var(--deep);background:#ffe0b1}.button-link{text-decoration:none}.text-link{font-size:1.1rem}.text-button{text-underline-offset:5px;color:var(--muted);border:0;padding:.4rem 0;text-decoration:underline}.skip-link{z-index:100;background:var(--gold);color:var(--deep);padding:12px;position:fixed;top:-100px;left:1rem}.skip-link:focus{top:1rem}.site-header{background:var(--deep);border-bottom:1px solid #ffffff12;justify-content:space-between;align-items:center;gap:1rem;height:88px;padding:0 48px;display:flex}.brand{font-family:var(--display);color:var(--text);white-space:nowrap;align-items:center;gap:10px;font-size:1.1rem;text-decoration:none;display:flex}.brand-divider{color:var(--line);margin:0 7px}.brand-learning{letter-spacing:.18em;color:var(--gold);font:.65rem system-ui,sans-serif}.site-header>a:last-child{color:var(--muted);font:.8rem system-ui,sans-serif;text-decoration:none}.site-footer{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:16px;margin-top:64px;padding:28px 48px;font-size:.95rem;display:flex}.hero{background:linear-gradient(125deg, var(--red) -38%, var(--navy) 78%);padding:48px 0 64px}.hero .eyebrow{margin-top:32px}.hero h1{max-width:20ch}.hero .breadcrumb{color:var(--muted);font-size:1rem}.catalog-hero{padding:60px 0 72px;position:relative;overflow:hidden}.catalog-hero .eyebrow{margin-top:0}.catalog-hero h1{max-width:24ch}.catalog-hero em{font-family:var(--body);color:var(--gold);font-weight:400}.catalog-hero .intro{max-width:43ch;margin-bottom:28px}.hero-mark{font-family:var(--display);color:#f6c78510;pointer-events:none;font-size:clamp(5rem,15vw,13rem);position:absolute;top:20%;right:6%;transform:rotate(-8deg)}.catalog{padding-top:48px}.section-heading{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;display:flex}.section-heading h2{margin:8px 0}.section-heading>span{color:var(--muted);font-size:1rem}.course-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,530px),1fr));gap:24px;display:grid}.course-card{border:1px solid var(--line);background:var(--card);border-radius:6px;grid-template-columns:200px 1fr;display:grid;overflow:hidden}.course-cover{border-right:1px solid var(--line);background:linear-gradient(150deg,#303750,#151a2b);flex-direction:column;justify-content:space-between;min-height:275px;padding:24px;display:flex}.course-cover>span{color:var(--muted);font:.8rem system-ui,sans-serif}.course-cover code{color:var(--gold);background:0 0;font-size:1.6rem;line-height:1.5}.course-card-body{padding:32px}.course-card-body h3{margin:.75rem 0;font-size:1.5rem}.course-card-body h3 a{color:var(--text);text-decoration:none}.course-card-body p{color:var(--muted)}.course-card-body .eyebrow{color:var(--gold);font-size:.65rem}.overview-grid{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:80px;padding-top:48px;display:grid}.overview-main>h2{margin-top:12px}.overview-main>p{max-width:65ch}.overview-aside{border:1px solid var(--line);background:#141b2c;border-radius:5px;padding:24px}.progress{margin-bottom:24px;font-size:1rem}.progress>div{justify-content:space-between;gap:16px;display:flex}.progress p{color:var(--muted);margin:5px 0;font-size:.9rem}.progress progress{appearance:none;border:0;width:100%;height:5px;margin:14px 0;display:block}.progress progress::-webkit-progress-bar{background:var(--line);border-radius:10px}.progress progress::-webkit-progress-value{background:var(--gold);border-radius:10px}.progress progress::-moz-progress-bar{background:var(--gold)}.overview-aside>.primary{width:100%;margin-bottom:24px}.entry-notice{border:1px solid var(--line);background:#161d2f;border-radius:4px;margin:32px 0;padding:24px}.entry-notice h2{margin:0 0 1rem;font-size:1.25rem}.entry-notice p{color:var(--muted);font-size:1.05rem}.entry-dialog{width:min(620px,100% - 32px);max-height:calc(100dvh - 32px);color:var(--text);margin:auto;padding:32px;overflow-y:auto;box-shadow:0 24px 80px #0006}.entry-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#050915d9}.reset-confirm p{font-size:1rem}.lesson-list{margin:16px 0;padding:0;list-style:none}.lesson-list li{border-top:1px solid var(--line);margin:0}.lesson-list li:last-child{border-bottom:1px solid var(--line)}.lesson-list a{color:var(--text);align-items:center;gap:18px;padding:24px 6px;line-height:1.35;text-decoration:none;display:flex}.lesson-list a:hover{background:#ffffff04}.lesson-list a[aria-current=page]{border-left:3px solid var(--gold);background:#f6c7850c;padding-left:10px}.lesson-list strong{font-size:1.15rem;font-weight:600;display:block}.lesson-list small{color:var(--muted);text-transform:capitalize;margin-top:5px;font-size:.92rem;display:block}.lesson-number{color:var(--gold);font:.8rem system-ui,sans-serif}.lesson-list a>span:last-child{color:var(--gold);margin-left:auto}.player-layout{grid-template-columns:315px minmax(0,1fr);min-height:75vh;display:grid}.sidebar{border-right:1px solid var(--line);background:#151c2e;align-self:start;max-height:100dvh;padding:32px 24px;position:sticky;top:0;overflow-y:auto}.sidebar h2,.drawer h2{margin:24px 0;font-size:1.2rem}.sidebar .breadcrumb{font-size:.95rem}.sidebar .lesson-list a,.drawer .lesson-list a{gap:12px;padding:20px 8px}.sidebar .lesson-list strong,.drawer .lesson-list strong{font-size:1rem}.sidebar .lesson-list a>span:last-child{display:none}.lesson-main{min-width:0;padding:48px clamp(24px,5vw,100px) 24px}.lesson-main h1{margin:16px 0;font-size:clamp(1.8rem,3vw,2.65rem)}.lesson-description{color:var(--muted);border-bottom:1px solid var(--line);margin-bottom:32px;padding-bottom:28px;font-size:1.3rem}.mobile-bar{display:none}.reading>h2{margin-top:48px}.reading a{overflow-wrap:anywhere}.reading :is(h2,h3,section,details){scroll-margin-top:24px}.callout{border-left:3px solid var(--gold);background:#f6c78508;border-radius:0 4px 4px 0;gap:16px;margin:28px 0;padding:20px 24px;display:flex}.callout>strong{white-space:nowrap;color:var(--gold);font-size:.95rem}.callout p:last-child{margin-bottom:0}.callout-warning{background:#ca925714}.callout-tip{border-color:var(--success)}.steps{counter-reset:step;margin:28px 0;padding:0;list-style:none}.steps>li{counter-increment:step;border-bottom:1px solid var(--line);margin-top:24px;padding:4px 0 20px 52px;position:relative}.steps>li:before{content:counter(step, decimal-leading-zero);color:var(--gold);border:1px solid var(--line);border-radius:50%;place-items:center;width:32px;height:32px;font:.8rem system-ui,sans-serif;display:grid;position:absolute;top:6px;left:0}.steps h3{margin:0 0 12px}.steps p:last-child{margin-bottom:0}details{border:1px solid var(--line);border-radius:4px;margin:24px 0}summary{cursor:pointer;padding:18px 22px;font-size:1.1rem;font-weight:600}.details-content{padding:8px 24px 16px}code{overflow-wrap:anywhere;background:#ffffff08;border-radius:3px;padding:.12em .3em;font-family:Consolas,Liberation Mono,monospace;font-size:.78em}.code-block{border:1px solid var(--line);background:#101626;border-radius:5px;margin:24px 0;overflow:hidden}.code-toolbar{border-bottom:1px solid var(--line);color:var(--muted);background:#ffffff04;justify-content:space-between;align-items:center;padding:8px 16px;font:.72rem system-ui,sans-serif;display:flex}.code-toolbar button{padding:6px 10px;font-size:.72rem}pre{margin:0;padding:22px;font-size:1rem;line-height:1.7;overflow-x:auto}pre code,pre code.hljs{overflow-wrap:normal;background:0 0;padding:0;font-size:.85em}.screenshot{margin:32px 0}.image-button{border:1px solid var(--line);border-radius:5px;width:100%;padding:0;line-height:0;display:block;position:relative;overflow:hidden}.image-button img{width:100%;height:auto;display:block}.zoom-label{background:var(--deep);color:var(--gold);border:1px solid var(--line);border-radius:4px;padding:10px;font:.7rem/1 system-ui,sans-serif;position:absolute;bottom:10px;right:10px}figcaption{color:var(--muted);text-align:center;padding:12px;font-size:.95rem}.image-dialog{background:var(--deep);max-width:min(95vw,1500px);max-height:95vh;color:var(--text);border:1px solid var(--line);border-radius:6px;padding:20px}.image-dialog img{display:block}.image-dialog p{font-size:1rem}.dialog-close{margin:0 0 20px auto;display:block}.drawer{background:var(--deep);width:400px;max-width:min(90vw,400px);height:100dvh;max-height:100dvh;color:var(--text);border:0;border-right:1px solid var(--line);margin:0 auto 0 0;padding:24px}dialog::backdrop{background:#050915c9}.exercise{border:1px solid var(--line);border-top:3px solid var(--gold);background:#151c2e;border-radius:4px;margin:32px 0;padding:28px}.exercise h3{font-size:1.3rem}.exercise label{margin-bottom:8px;font-size:1rem;display:block}.exercise textarea{resize:vertical;background:var(--deep);width:100%;color:var(--text);border:1px solid #697792;border-radius:4px;margin-bottom:16px;padding:16px;font:.9rem/1.7 Consolas,monospace;display:block}.exercise [role=status]{margin:16px 0 0;font-size:1rem}.lesson-action{border-top:1px solid var(--line);margin:48px 0 28px;padding-top:28px}.lesson-action>p{font-size:1.2rem}.lesson-action [role=alert]{border:1px solid var(--line);background:#5b060630;margin-top:24px;padding:20px}.lesson-navigation{border-top:1px solid var(--line);justify-content:space-between;gap:20px;padding:24px 0;font-size:1rem;display:flex}.load-error{border:1px solid var(--line);background:#5b060626;margin:32px 0;padding:24px}.load-error h2{margin-top:0}.loading{color:var(--muted);padding:40px 0}.not-found{padding:80px 0}.styleguide{padding:64px 24px}.storage-notice{color:#ffe4bc;text-align:center;background:#41331f;margin:0;padding:12px 24px;font-size:1rem}@media (width>=1500px){.lesson-main{padding-left:100px;padding-right:100px}}@media (width<=1000px){.overview-grid{grid-template-columns:minmax(0,1fr) 310px;gap:36px}.wide{width:calc(100% - 64px)}.site-header{padding:0 32px}.player-layout{grid-template-columns:265px minmax(0,1fr)}.sidebar{padding:28px 18px}.lesson-main{padding:36px 28px}.course-card{grid-template-columns:160px 1fr}}@media (width<=760px){body{font-size:19px}.wide{width:calc(100% - 40px)}.site-header{height:72px;padding:0 20px}.brand{gap:7px;font-size:.9rem}.brand-learning,.brand-divider{display:none}.site-header>a:last-child{text-align:right;max-width:75px;font-size:.7rem}.hero{padding:32px 0 40px}.catalog-hero{padding:40px 0 48px}.hero .eyebrow{font-size:.64rem}.hero-mark{display:none}.hero h1{max-width:22ch}.intro{font-size:1.2rem}.catalog{padding-top:32px}.section-heading{flex-direction:column;align-items:flex-start;gap:0}.section-heading h2{font-size:1.4rem}.course-card{display:block}.course-cover{border-right:0;border-bottom:1px solid var(--line);flex-direction:row;align-items:center;min-height:170px}.course-cover code{font-size:1.25rem}.course-card-body{padding:24px}.overview-grid{flex-direction:column;gap:24px;padding-top:32px;display:flex}.overview-aside{order:-1;width:100%}.overview-main>h2{font-size:1.4rem}.player-layout{display:block}.sidebar{display:none}.lesson-main{padding:0 20px 24px}.mobile-bar{justify-content:space-between;align-items:center;gap:16px;padding:16px 0 24px;font-size:1rem;display:flex}.mobile-bar button{font-size:.85rem}.lesson-main h1{font-size:1.9rem}.lesson-description{font-size:1.15rem}.callout{padding:18px;display:block}.callout>strong{margin-bottom:8px;display:block}.exercise{padding:20px}.reading>h2{font-size:1.4rem}.site-footer{flex-direction:column;gap:4px;padding:24px 20px}.lesson-navigation{font-size:.95rem}.entry-notice{padding:20px}.steps>li{padding-left:46px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
