.series-panel{margin:0 0 42px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--card-shadow)}
.series-panel__head{display:flex;justify-content:space-between;gap:20px;align-items:end;padding-bottom:16px;border-bottom:1px solid var(--line)}
.series-panel__head h2{margin:5px 0 0;font-family:var(--font-heading,var(--font-sans));font-size:clamp(24px,4vw,36px);font-weight:var(--heading-weight,800);line-height:1;text-transform:var(--heading-transform,none)}
.series-panel__position{color:var(--muted);font:11px/1.4 var(--font-mono);text-transform:uppercase;letter-spacing:.08em;white-space:nowrap}
.series-panel__nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding-top:16px}
.series-panel__nav a{display:flex;flex-direction:column;gap:6px;padding:14px;border:1px solid var(--line);border-radius:max(4px,calc(var(--radius)*.7));text-decoration:none}
.series-panel__nav a:hover,.series-panel__nav a:focus-visible{border-color:var(--accent)}
.series-panel__nav span{color:var(--accent);font:700 10px/1.3 var(--font-mono);letter-spacing:.08em;text-transform:uppercase}
.series-panel__nav strong{font-size:15px;line-height:1.3}
.article-toc{display:none}
.article-toc__label{margin-bottom:12px;color:var(--accent);font:700 10px/1.4 var(--font-mono);letter-spacing:.1em;text-transform:uppercase}
.article-toc ol,.article-toc-mobile ol{list-style:none;margin:0;padding:0}
.article-toc li+li,.article-toc-mobile li+li{margin-top:8px}
.article-toc a,.article-toc-mobile a{display:block;color:color-mix(in srgb,var(--muted) 82%,transparent);font:12px/1.35 var(--font-mono);text-decoration:none}
.article-toc a:hover,.article-toc a:focus-visible,.article-toc a.is-active,.article-toc-mobile a:hover,.article-toc-mobile a:focus-visible,.article-toc-mobile a.is-active{color:var(--text)}
.article-toc a.is-active{box-shadow:inset 2px 0 0 var(--accent);padding-left:9px}
.article-toc__subitem{padding-left:12px}
.article-toc-mobile{margin:0 0 34px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.article-toc-mobile summary{display:flex;justify-content:space-between;gap:16px;padding:15px 17px;cursor:pointer;color:var(--text);font:700 11px/1.3 var(--font-mono);letter-spacing:.08em;text-transform:uppercase}
.article-toc-mobile summary::-webkit-details-marker{display:none}
.article-toc-mobile[open] summary{border-bottom:1px solid var(--line)}
.article-toc-mobile nav{padding:17px}
.reading-progress{position:fixed;z-index:60;top:0;left:0;width:100%;height:3px;pointer-events:none;background:transparent}
.reading-progress span{display:block;width:100%;height:100%;transform:scaleX(0);transform-origin:left;background:var(--accent);transition:transform .08s linear}
.comments-panel{margin-top:62px;padding:30px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.comments-panel__head{max-width:720px;margin-bottom:24px}
.comments-panel__head h2{margin:6px 0 10px;font-family:var(--font-heading,var(--font-sans));font-size:clamp(28px,4vw,42px);font-weight:var(--heading-weight,800);line-height:1;text-transform:var(--heading-transform,none)}
.comments-panel__head p{margin:0;color:var(--muted);line-height:1.55}
.comments-panel .giscus,.comments-panel .giscus-frame{width:100%}
.related-reading{margin-top:62px;padding-top:30px;border-top:1px solid var(--line)}
.related-reading__head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:18px}
.related-reading__head h2{margin:5px 0 0;font-family:var(--font-heading,var(--font-sans));font-size:clamp(28px,4vw,42px);font-weight:var(--heading-weight,800);line-height:1;text-transform:var(--heading-transform,none)}
.related-reading__rule{flex:1;height:1px;background:var(--line);margin-bottom:6px}
.related-reading__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.related-card{min-height:190px;display:flex;flex-direction:column;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);text-decoration:none;box-shadow:var(--card-shadow)}
.related-card:hover,.related-card:focus-visible{border-color:var(--accent)}
.related-card__meta{color:var(--accent);font:700 10px/1.4 var(--font-mono);letter-spacing:.08em;text-transform:uppercase}
.related-card strong{margin:auto 0 8px;font-family:var(--font-heading,var(--font-sans));font-size:22px;font-weight:var(--heading-weight,800);line-height:1.05;text-transform:var(--heading-transform,none)}
.related-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.45}
html[data-theme="technical-brutalism"] .series-panel,html[data-theme="technical-brutalism"] .series-panel__nav a,html[data-theme="technical-brutalism"] .article-toc-mobile,html[data-theme="technical-brutalism"] .related-card{border-width:3px;border-radius:0;box-shadow:none}
@media(min-width:1380px){.article-toc{display:block;position:fixed;z-index:5;top:156px;right:max(18px,calc(50vw - 690px));width:160px;max-height:calc(100vh - 196px);overflow:auto;padding-left:12px;border-left:1px solid var(--line)}.article-toc-mobile{display:none}}
@media(max-width:760px){.series-panel__head{align-items:start;flex-direction:column}.series-panel__nav{grid-template-columns:1fr}.related-reading__grid{grid-template-columns:1fr}.related-card{min-height:150px}}
@media(prefers-reduced-motion:reduce){.reading-progress span{transition:none}}