/* Scoped article styles: shared navigation and other pages remain independent. */
.academy-article{color-scheme:dark;--bg:#0f1220;--panel:#191e32;--line:#303a57;--ink:#edf1fc;--muted:#b5bfd7;--accent:#b6a4ff}
.academy-article *{box-sizing:border-box}
.academy-article{margin:0;background:var(--bg);color:var(--ink);font:17px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.academy-article a{color:var(--accent);text-underline-offset:4px}
.academy-article a:hover{color:#ddd4ff}
.academy-article a:focus-visible,.academy-article button:focus-visible,.academy-article input:focus-visible,.academy-article summary:focus-visible{outline:3px solid #f9d870;outline-offset:4px}
.academy-article{max-width:880px;padding:30px 24px 60px;margin:auto}
.academy-article .breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:38px}
.academy-article .eyebrow,.academy-article .label{font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--accent)}
.academy-article h1{font-size:clamp(30px,5vw,48px);line-height:1.17;letter-spacing:-.035em;margin:14px 0 24px}
.academy-article h2{font-size:clamp(23px,3vw,30px);line-height:1.3;letter-spacing:-.025em;margin:0 0 18px}
.academy-article p{margin:0 0 20px}
.academy-article .intro{font-size:20px;color:var(--muted);line-height:1.65}
.academy-article .contents,.academy-article .next{padding:26px 30px;background:var(--panel);border:1px solid var(--line);border-radius:18px;margin:30px 0}
.academy-article .contents ol{margin:10px 0 0;padding-left:22px}
.academy-article .contents li{padding:4px 0}
.academy-article section{margin-top:42px}
.academy-article ul,.academy-article ol{padding-left:24px}
.academy-article li{margin:8px 0}
.academy-article pre{background:#080c16;border:1px solid var(--line);border-radius:12px;padding:22px;overflow-x:auto}
.academy-article code{font-family:ui-monospace,Consolas,monospace;font-size:.95em}
.academy-article p code{background:var(--panel);padding:2px 5px;border-radius:4px}
.academy-article .table-scroll{overflow-x:auto;margin:20px 0}
.academy-article table{border-collapse:collapse;min-width:100%;background:var(--panel)}
.academy-article td,.academy-article th{border:1px solid var(--line);padding:12px;text-align:center}
.academy-article .exercise{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;margin:18px 0}
.academy-article .answer-row{display:flex;gap:10px;margin-top:15px}
.academy-article input{min-width:0;max-width:280px;flex:1;padding:12px 14px;border:1px solid #7381a3;border-radius:8px;background:var(--bg);color:var(--ink);font:inherit}
.academy-article button,.academy-article .button{border:0;border-radius:9px;background:var(--accent);color:#151022;padding:12px 19px;font:600 15px/1.4 system-ui;cursor:pointer;text-decoration:none;display:inline-block}
.academy-article .button:hover,.academy-article button:hover{background:#d1c5ff;color:#151022}
.academy-article .feedback{min-height:0;margin:10px 0;color:#d9e1f6}
.academy-article .feedback:empty{display:none}
.academy-article .feedback[data-correct="true"]{color:#85e4b2}
.academy-article summary{cursor:pointer;color:var(--accent);padding:6px 0}
.academy-article details p{margin:12px 0 0}
.academy-article .actions{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.academy-article .article-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px}
.academy-article .article-card{padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:17px;text-decoration:none;color:var(--ink)}
.academy-article .article-card h2{margin:12px 0;font-size:25px}
.academy-article .article-card p{color:var(--muted);font-size:16px}
.academy-article .article-card b{color:var(--accent)}
.academy-article .article-card:hover{border-color:var(--accent);color:var(--ink)}
.academy-article .skip{position:absolute;top:0;left:16px;transform:translateY(-150%);background:var(--bg);padding:10px;z-index:10}
.academy-article .skip:focus{transform:none}
.academy-article [hidden]{display:none!important}
@media(max-width:650px){.academy-article{padding:24px 18px 42px}
.academy-article .contents,.academy-article .next{padding:22px}
.academy-article .article-grid{grid-template-columns:1fr}
.academy-article .answer-row{flex-wrap:wrap}
.academy-article .exercise{padding:20px}
.academy-article .intro{font-size:18px}
.academy-article .breadcrumbs{margin-bottom:26px}
}
@media(prefers-reduced-motion:reduce){
}
.academy-article .learning-figure{margin:24px 0;padding:16px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}
.academy-article .learning-figure svg{display:block;width:100%;height:auto}
.academy-article .learning-figure figcaption{font-size:14px;color:var(--muted);margin-top:10px}
.academy-article .formula{padding:18px 22px;border-left:3px solid var(--accent);background:var(--panel);font-weight:700}
.academy-article caption{text-align:left;color:var(--muted);font-size:15px;padding:0 0 10px}
.academy-article .study-next{margin-top:48px}
.academy-article .study-next .eyebrow{margin-bottom:10px}
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.academy-article .study-options h3{font-size:19px;line-height:1.4;margin:0 0 12px}
.academy-article .study-options p{font-size:16px;color:var(--muted);margin-bottom:15px}
.academy-article .community-link{display:inline-block;font-weight:600}
.academy-article .study-options .teacher-link{margin:16px 0 0}
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.academy-article .study-next a{overflow-wrap:anywhere}
@media(max-width:650px){.academy-article .study-options{grid-template-columns:1fr;gap:24px}
.academy-article .study-next .actions{align-items:stretch;gap:16px}
.academy-article .study-next .actions .button{width:100%;text-align:center}
.academy-article .learning-figure{padding:8px}
.academy-article .learning-figure figcaption{padding:6px;font-size:13px}
}
.academy-article .article-cover{display:block;width:calc(100% + 52px);height:auto;max-width:none;margin:-26px -26px 22px;border-radius:16px 16px 0 0}
.academy-article .article-card{overflow:hidden}
.academy-article .article-card .label{letter-spacing:.06em}
.academy-article article>section>h2{padding-top:8px}
.academy-article article>section>p{max-width:75ch}
.academy-article .learning-figure{padding:24px}
.academy-article .learning-figure svg{min-height:210px}
.academy-article .learn-lab{margin:30px 0;padding:30px;border:1px solid #485274;border-radius:20px;background:linear-gradient(135deg,#202641,#151c2e)}
.academy-article .learn-lab h3{font-size:24px;line-height:1.35;margin:8px 0 14px;letter-spacing:-.02em}
.academy-article .lab-kicker{font-size:11px;color:#7ee3d0;letter-spacing:.13em;font-weight:700}
.academy-article .learn-lab figcaption p,.academy-article .lab-note{color:var(--muted);font-size:15px}
.academy-article .lab-note{margin:18px 0 0}
.academy-article .bit-controls{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin:26px 0;text-align:center}
.academy-article .bit-controls>div>span{display:block;color:var(--muted);font-size:15px;margin-bottom:8px}
.academy-article .bit-controls button{width:100%;padding:17px 0;font:700 30px/1.2 ui-monospace,monospace;border:1px solid var(--line);background:#0f1425;color:#95a3c1}
.academy-article .bit-controls button[aria-pressed=true]{color:#fff;background:#5e51a9;border-color:#b6a4ff}
.academy-article .lab-result{display:block;font-size:clamp(23px,4vw,34px);font-weight:700;text-align:center;letter-spacing:-.03em}
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.academy-article .byte-picture span{background:#284048;color:#b3f7df;text-align:center;padding:8px 0;border-radius:5px;font:700 21px/1.2 ui-monospace,monospace}
.academy-article .lab-converter{display:flex;align-items:center;flex-wrap:wrap;gap:16px}
.academy-article .lab-converter label{font-size:14px;max-width:180px}
.academy-article .lab-converter input{display:block;width:100%;margin-top:5px}
.academy-article .lab-converter output{font-size:26px;font-weight:700}
.academy-article .trace-grid{display:grid;grid-template-columns:1fr 130px;gap:20px;align-items:center}
.academy-article .trace-grid pre{margin:10px 0;line-height:1.8;white-space:pre-wrap;font-size:17px}
.academy-article .trace-value{text-align:center}
.academy-article .trace-value small{color:var(--muted)}
.academy-article .trace-value output{display:block;font-size:60px;font-weight:700;color:#82e3d0}
.academy-article .trace-description{min-height:54px;margin:20px 0}
.academy-article .lab-actions{display:flex;flex-wrap:wrap;gap:12px}
.academy-article .lab-secondary{background:transparent;color:var(--accent);border:1px solid #68749a}
.academy-article .learn-lab button:disabled{cursor:default;opacity:.65}
.academy-article .learn-route{list-style:none;padding:0;display:grid;gap:20px;margin:20px 0 0}
.academy-article .learn-route li{display:flex;gap:18px;align-items:flex-start;margin:0}
.academy-article .learn-route li>span{flex:0 0 42px;height:42px;display:grid;place-items:center;background:#333354;color:#c9bcff;border-radius:13px;font-weight:700}
.academy-article .learn-route p{font-size:16px;color:var(--muted);margin:4px 0}
.academy-article .learning-paths{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.academy-article .learning-path{min-width:0;border:1px solid var(--line);background:var(--panel);border-radius:18px;padding:26px}
.academy-article .learning-path h3{font-size:24px;margin:14px 0 10px;line-height:1.3}
.academy-article .learning-path>p{font-size:16px;color:var(--muted)}
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.academy-article .learning-path-teacher .path-icon{color:#d2c1ff;background:#38304e}
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.academy-article .article-community p{color:var(--muted);font-size:16px}
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.academy-article .article-socials>a{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;background:var(--panel);color:var(--ink)}
.academy-article .social-mark{display:grid;place-items:center;flex:0 0 42px;height:42px;border-radius:12px;background:#3478cb;color:#fff;font:800 18px system-ui}
.academy-article .tg-mark{background:#257b9a}
.academy-article .article-socials strong{display:block;font-size:16px}
.academy-article .article-socials small{display:block;color:var(--muted);font-size:12px}
.academy-article .article-community .community-bonus-link{font-size:13px;margin:18px 0 0}
.academy-article .article-contact{margin:24px 0 0;font-size:14px;color:var(--muted)}
.academy-article .learning-path a,.academy-article .article-socials a{overflow-wrap:anywhere}
@media(max-width:650px){.academy-article .learn-lab{padding:20px 16px}
.academy-article .learn-lab h3{font-size:22px}
.academy-article .bit-controls{gap:7px}
.academy-article .bit-controls button{font-size:25px;padding:15px 0;min-height:48px}
.academy-article .trace-grid{grid-template-columns:minmax(0,1fr) 56px;gap:8px}
.academy-article .trace-grid pre{font-size:14px;padding:14px 10px}
.academy-article .trace-value output{font-size:42px}
.academy-article .trace-value small{font-size:11px}
.academy-article .learning-figure{padding:10px}
.academy-article .learning-figure svg{min-height:160px}
.academy-article .learning-paths,.academy-article .article-socials{grid-template-columns:1fr}
.academy-article .learning-path{padding:22px}
.academy-article .article-socials>a{padding:15px}
.academy-article .byte-picture{gap:4px;padding:8px}
.academy-article .byte-picture span{font-size:18px}
.academy-article .trace-description{font-size:15px}
.academy-article .lab-converter{gap:12px}
.academy-article .lab-converter label{max-width:130px}
.academy-article .lab-converter output{font-size:23px}
}
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.academy-article .ald-hub [hidden],.academy-article [hidden]{display:none!important}
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.academy-article .ald-filter-options button[aria-pressed=true],.academy-article .ald-lab button[aria-pressed=true]{background:#b4a2ff;color:#18152b;border-color:#b4a2ff;font-weight:700}
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.academy-article .ald-card-art{overflow:hidden;background:#14192c}
.academy-article .ald-card-art img{display:block;width:100%;height:auto;aspect-ratio:2;object-fit:contain;transition:transform .3s}
.academy-article .ald-card:hover img{transform:scale(1.025)}
.academy-article .ald-card-body{padding:24px;display:flex;flex-direction:column;flex:1}
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.academy-article .ald-card-meta>span{color:var(--ald-mint)}
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.academy-article .ald-card p{font-size:15px;line-height:1.6;color:var(--ald-muted);margin:0 0 22px}
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.academy-article .ald-card-bottom small{font-size:11px;color:var(--ald-muted)}
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.academy-article{max-width:1240px;padding:30px 32px 70px}
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.academy-article .ald-steps span{font-size:15px;font-weight:600}
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.academy-article .exercise{border-radius:16px;background:#212a43;padding:20px;border-color:#485478}
.academy-article .exercise b{font-size:16px}
.academy-article .exercise details{font-size:15px;margin-top:14px}
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.academy-article .learning-paths{gap:14px}
.academy-article .learning-path{padding:20px;min-width:0}
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.academy-article .ald-related li{padding:8px 0;font-size:15px}
.academy-article .ald-reading-progress{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:50;pointer-events:none}
.academy-article .ald-reading-progress span{display:block;width:100%;height:100%;background:#aaedcf;transform-origin:left;transform:scaleX(0)}
.academy-article .ald-lab{margin:28px 0 0;background:#111729;border:1px solid #465578;border-radius:18px;padding:22px;color:#eef0ff;overflow:hidden}
.academy-article .ald-lab h3{font-size:20px;line-height:1.3;margin:8px 0 12px}
.academy-article .ald-lab .ald-lab-label{font-size:10px;color:#91dbc4;font-weight:700;letter-spacing:.12em}
.academy-article .ald-lab p{font-size:14px;line-height:1.7}
.academy-article .ald-lab .ald-lab-controls{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.academy-article .ald-lab button:disabled{cursor:default;opacity:.45}
.academy-article .ald-lab-output{display:block;padding:17px;margin-top:16px;background:#233448;border:1px solid #496571;border-radius:12px;color:#b8f4dd;font:600 16px/1.5 ui-monospace,monospace;white-space:pre-wrap}
.academy-article .ald-lab-cells{display:flex;flex-wrap:wrap;gap:7px;margin:16px 0}
.academy-article .ald-lab-cells span{display:inline-flex;align-items:center;justify-content:center;min-width:43px;min-height:43px;border:1px solid #4a5370;border-radius:9px;padding:5px 10px;background:#202840;transition:background .25s,transform .25s}
.academy-article .ald-lab-cells span.is-active{background:#aadaff;color:#172536;transform:translateY(-3px);border-color:#aadaff}
.academy-article .ald-lab .ald-lab-state{min-height:46px;color:#bbc7df;font-size:14px}
.academy-article .learn-lab{border-radius:18px;background:#111729}
.academy-article .learn-lab h3{font-size:20px}
@media(max-width:1050px){.academy-article .ald-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.academy-article .ald-story-layout{grid-template-columns:185px minmax(0,1fr);gap:24px}
.academy-article .ald-article-hero{gap:24px}
.academy-article .learning-paths{grid-template-columns:1fr}
}
@media(max-width:760px){.academy-article{padding:24px 18px 50px}
.academy-article .ald-article-hero,.academy-article .ald-story-layout{grid-template-columns:1fr}
.academy-article .ald-article-hero figure{max-width:640px}
.academy-article .ald-toc{position:static}
.academy-article .ald-toc ol{columns:2;column-gap:24px}
.academy-article .ald-steps{gap:8px;margin-bottom:28px}
.academy-article .ald-steps>div{display:grid;gap:5px;padding:14px 12px}
.academy-article .ald-steps span{font-size:13px}
.academy-article .ald-section{padding:22px 20px}
.academy-article .ald-section h2{font-size:25px}
.academy-article .study-next{padding:20px}
.academy-article .intro{font-size:17px}
.academy-article .ald-story-body p,.academy-article .ald-story-body li{font-size:16px}
.academy-article .ald-search{min-width:0;flex:1}
}
@media(max-width:600px){.academy-article .ald-grid{grid-template-columns:1fr;gap:20px}
.academy-article .ald-card-body{padding:21px}
.academy-article .ald-card h3{font-size:22px}
.academy-article .ald-filterbar{display:grid;gap:15px}
.academy-article .ald-filter-options button{padding:10px 16px}
.academy-article .ald-toc ol{columns:1}
.academy-article .ald-section{padding:20px 16px}
.academy-article .ald-lab{padding:17px}
.academy-article pre{font-size:12px;padding:16px}
.academy-article .learning-path{padding:16px}
.academy-article .ald-meta{gap:10px;font-size:11px}
}
@media(prefers-reduced-motion:reduce){.academy-article .ald-card,.academy-article .ald-card img,.academy-article .ald-lab-cells span,.academy-article .ald-filter-options button,.academy-article .ald-lab button{transition:none!important}
.academy-article .ald-card:hover,.academy-article .ald-card:hover img,.academy-article .ald-lab-cells span.is-active{transform:none!important}
}
.academy-article .ald-steps b,.academy-article .ald-steps>div>span{font-size:12px;color:#a596d6}
.academy-article .ald-steps strong{font-size:15px}
/* Theme-aware surfaces and calm, clearly clickable controls. */
.academy-article {
  --reader-link:#a9c7ed;--reader-action:#9bbce6;--reader-action-ink:#142238;--reader-success:#9ae4d4;
  --bg:var(--bg-color,#101225);--panel:var(--card-bg,#1b1f39);
  --line:var(--border-color,#424a70);--ink:var(--text-primary,#f1f3ff);
  --muted:var(--text-secondary,#b2bad6);--accent:var(--reader-link);
  --ald-ink:var(--ink);--ald-muted:var(--muted);--ald-panel:var(--panel);
  --ald-line:var(--line);--ald-accent:var(--reader-link);--ald-mint:var(--reader-link);
  color:var(--ink);background:transparent;max-width:1240px;width:100%;
  padding:28px 32px 64px;margin:0 auto;line-height:1.75;font-size:17px;
  color-scheme:inherit;
}
html[data-academy-theme="night"] .academy-article {--reader-link:#afc9f2}
html[data-academy-theme="light"] .academy-article {--reader-link:#2859a0;--reader-action:#315f9e;--reader-action-ink:#fff;--reader-success:#11665c;color-scheme:light}
html[data-academy-theme="warm"] .academy-article {--reader-link:#355d83;--reader-action:#3a6087;--reader-action-ink:#fff;--reader-success:#245f4f;color-scheme:light}
.academy-article :is(h1,h2,h3,h4,strong,b){color:var(--ink)}
.academy-article :is(a,a:visited){color:var(--reader-link);text-decoration-color:currentColor;text-underline-offset:4px}
.academy-article a:hover{color:var(--ink)}
.academy-article :is(a,button,input,summary):focus-visible{outline:3px solid var(--reader-link);outline-offset:4px}
.academy-article .eyebrow,.academy-article .label,.academy-article .ald-section-number{color:var(--muted);letter-spacing:.09em}
.academy-article .intro,.academy-article :is(.ald-lab-state,.lab-note,.lab-kicker,.ald-article-hero figcaption){color:var(--muted)}
.academy-article .breadcrumbs{gap:8px;align-items:center;margin:0 0 26px;padding:0;line-height:1.5;font-size:13px}
.academy-article .breadcrumbs a{display:inline-flex;align-items:center;min-height:40px;padding:7px 12px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--ink);text-decoration:none;font-weight:600}
.academy-article .breadcrumbs a:hover{border-color:var(--reader-link)}
.academy-article .breadcrumbs [aria-current=page]{flex:1 1 190px;min-width:0;color:var(--muted);padding:5px 2px}
.academy-article .breadcrumbs>[aria-hidden=true]{color:var(--muted);font-size:17px}
.academy-article :is(.ald-meta,.ald-card-meta>span,.ald-lab .ald-lab-label){color:var(--muted)}
.academy-article .ald-hero-link{color:var(--reader-link)!important;border-color:var(--line);min-height:44px;align-items:center}
.academy-article :is(.ald-section,.ald-toc,.ald-steps>div,.ald-article-hero figure,.study-next,.learning-path,.exercise,.ald-lab,.learn-lab,.ald-card){background:var(--panel);border:1px solid var(--line);color:var(--ink)}
.academy-article .ald-article-hero figure{background:#111729}
.academy-article .ald-article-hero figcaption{background:var(--panel);border-color:var(--line)}
.academy-article :is(.ald-section h2,.ald-toc summary,.ald-toc a,.ald-steps strong){color:var(--ink)}
.academy-article .ald-toc a[aria-current=true]{color:var(--reader-link);text-decoration:underline}
.academy-article :is(.ald-steps>div>span,.ald-steps b){color:var(--muted)}
.academy-article .ald-toc{top:112px}
.academy-article .ald-story-body section{scroll-margin-top:110px}
.academy-article pre,.academy-article pre code{background:#101a2a;color:#e7efff}
.academy-article pre *{color:inherit}
.academy-article p code{background:var(--bg);color:var(--ink)}
.academy-article table{background:var(--panel);color:var(--ink)}
.academy-article :is(td,th){border-color:var(--line)}
.academy-article .feedback{color:var(--ink)}
.academy-article .feedback[data-correct=true]{color:var(--reader-success)}
.academy-article summary{color:var(--ink);font-weight:600;min-height:44px;padding:10px 0;line-height:1.5}
.academy-article .learning-path{display:flex;flex-direction:column;align-items:flex-start;padding:22px;border-radius:18px}
.academy-article .learning-path>.path-icon{margin-bottom:10px;background:var(--bg);color:var(--reader-link);border:1px solid var(--line)}
.academy-article .learning-path>.label{display:block;margin-bottom:0;font-size:10px}
.academy-article .learning-path h3{font-size:22px;margin:9px 0 12px}
.academy-article .learning-path>p{margin-bottom:20px}
.academy-article :is(.button,button),.academy-article .learning-path>a {
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--reader-action);color:var(--reader-action-ink);border:1px solid transparent;
  min-height:48px;padding:12px 18px;border-radius:12px;text-decoration:none;
  font:700 15px/1.5 Inter,system-ui,sans-serif;text-align:center;
}
.academy-article .learning-path>a{width:100%;margin-top:auto}
.academy-article :is(.button,button):hover,.academy-article .learning-path>a:hover{background:var(--reader-action);color:var(--reader-action-ink);box-shadow:inset 0 0 0 2px var(--reader-action-ink)}
.academy-article .learning-path details{width:100%;margin-top:18px;border-color:var(--line)}
.academy-article .learning-path details a{display:inline-flex;min-height:40px;align-items:center;font-weight:600;text-decoration:none;border-bottom:1px solid var(--line)}
.academy-article .learning-path details ul{list-style:none;margin:8px 0;padding:0}
.academy-article .learning-path details li{margin:2px 0;font-size:14px}
.academy-article .ald-related{border-color:var(--line);padding:24px 0}
.academy-article .ald-related ul{list-style:none;padding:0;display:grid;gap:10px}
.academy-article .ald-related li{padding:0;margin:0}
.academy-article .ald-related li a{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;padding:12px 16px;border-radius:12px;border:1px solid var(--line);background:var(--panel);color:var(--ink);text-decoration:none;font-weight:600}
.academy-article .ald-related li a:after{content:'→';color:var(--reader-link);font-size:19px}
.academy-article .ald-related li a:hover{border-color:var(--reader-link)}
.academy-article .article-socials>a{color:var(--ink)}
.academy-article .social-mark{color:white}
.academy-article .article-contact{font-size:14px}
.academy-article .article-contact a{display:inline-flex;align-items:center;min-height:40px;font-weight:600}
.academy-article .community-bonus-link a{display:inline-flex;align-items:center;min-height:44px;padding:10px 14px;border:1px dashed var(--line);border-radius:12px;text-decoration:none;font-weight:600;color:var(--ink)}
.academy-article :is(.ald-lab-output,.ald-lab-cells span,.learn-route li>span){color:var(--ink);background:var(--bg);border-color:var(--line)}
.academy-article .ald-lab-cells span.is-active{background:var(--reader-action);color:var(--reader-action-ink);border-color:var(--reader-action)}
.academy-article .ald-filter-options button[aria-pressed=true],.academy-article .ald-lab button[aria-pressed=true],.academy-article .bit-controls button[aria-pressed=true]{background:var(--reader-action);color:var(--reader-action-ink);border-color:var(--reader-action)}
.academy-article .bit-controls button{background:var(--bg);border:1px solid var(--line);color:var(--ink)}
.academy-article .lab-secondary{background:var(--bg);color:var(--ink);border:1px solid var(--line)}
.academy-article .trace-value output{color:var(--reader-link)}
.academy-article .byte-picture{border-color:var(--reader-link)}
.academy-article .byte-picture span{background:var(--bg);color:var(--ink)}
.academy-article .ald-reading-progress{top:auto;bottom:0;z-index:60}
.academy-article .ald-reading-progress span{background:var(--reader-link)}
@media(max-width:760px){
  .academy-article{padding:20px 16px 40px}
  .academy-article .breadcrumbs{margin-bottom:22px;font-size:12px;gap:6px}
  .academy-article .breadcrumbs a{padding:6px 10px}
  .academy-article .breadcrumbs [aria-current=page]{flex-basis:100%;padding:4px 0}
  .academy-article .breadcrumbs>[aria-hidden=true]:last-of-type{display:none}
  .academy-article .ald-article-hero{gap:22px;margin-top:10px}
  .academy-article .ald-article-hero h1{font-size:clamp(28px,7vw,38px)}
  .academy-article .ald-article-hero figure{border-radius:18px}
  .academy-article .ald-toc{position:static;padding:15px 18px}
  .academy-article .ald-toc details>summary{padding:4px 0;min-height:32px}
  .academy-article .ald-toc ol{margin-top:10px}
  .academy-article .ald-story-body section{scroll-margin-top:90px}
  .academy-article .learning-path{padding:20px}
  .academy-article .study-next{padding:20px 16px}
  .academy-article .study-next>h2{font-size:26px}
  .academy-article .ald-section{padding:20px 16px}
  .academy-article .ald-steps{margin-top:20px}
  .academy-article :is(input,select,textarea){font-size:16px}
}
@media(prefers-reduced-motion:reduce){.academy-article *{scroll-behavior:auto;transition:none!important}}
/* Anchor buttons need to override both the normal and visited prose-link colors. */
.academy-article a.button,
.academy-article a.button:visited,
.academy-article a.button:hover,
.academy-article a.button:active {
  color:var(--reader-action-ink);
  background:var(--reader-action);
}
.academy-article input::placeholder{color:var(--muted);opacity:1}