.content-shell { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.content-header { position: relative; padding-block: clamp(64px, 9vw, 112px) clamp(52px, 8vw, 88px); border-bottom: 1px solid var(--line); }
.content-header::after { content: ""; position: absolute; right: 3%; top: 18%; width: clamp(110px, 16vw, 210px); aspect-ratio: 1; border: 1px solid var(--line); border-radius: 50%; background: radial-gradient(circle at 35% 35%, var(--flame-soft), transparent 55%), var(--surface); opacity: .85; }
.content-header > * { position: relative; z-index: 1; }
.content-header h1 { max-width: 920px; margin: 0; font-size: clamp(44px, 7vw, 82px); line-height: 1.02; letter-spacing: -.06em; }
.content-header .content-lede { max-width: 720px; margin: 26px 0 0; color: var(--ink-2); font-size: clamp(17px, 2vw, 21px); line-height: 1.78; }
.content-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.content-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 26px; color: var(--muted); font: 500 11px/1.5 DM Mono, monospace; letter-spacing: .04em; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; color: var(--muted); font-size: 12px; }
.crumbs a:hover, .crumbs a:focus-visible { color: var(--flame-dark); }
.listing { padding-block: 74px 110px; }
.listing-intro { max-width: 720px; margin-bottom: 42px; color: var(--muted); }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.content-card { min-height: 280px; display: flex; flex-direction: column; padding: clamp(26px, 4vw, 42px); border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 14px 50px rgba(20,22,26,.06); transition: transform .18s ease, border-color .18s ease; }
.content-card:hover, .content-card:focus-within { transform: translateY(-3px); border-color: rgba(198,67,26,.38); }
.content-card .card-label { margin: 0 0 34px; color: var(--flame-dark); font: 600 10px DM Mono, monospace; letter-spacing: .1em; text-transform: uppercase; }
.content-card h2, .content-card h3 { margin: 0; font-size: clamp(25px, 3vw, 36px); line-height: 1.15; letter-spacing: -.04em; }
.content-card p { margin: 16px 0 0; color: var(--muted); }
.content-card .card-link { margin-top: auto; padding-top: 28px; font-weight: 750; }
.content-card .card-link span { color: var(--flame-dark); }
.tutorial-series { display: grid; grid-template-columns: minmax(250px, .8fr) minmax(0, 1.35fr); gap: clamp(30px, 6vw, 80px); padding: clamp(28px, 5vw, 56px); border: 1px solid var(--line); border-radius: 26px; background: var(--surface); box-shadow: 0 14px 50px rgba(20,22,26,.06); }
.tutorial-series + .tutorial-series, .standalone-tutorials { margin-top: 32px; }
.tutorial-series header { align-self: start; }
.tutorial-series .card-label { margin: 0 0 22px; color: var(--flame-dark); font: 600 10px DM Mono, monospace; letter-spacing: .1em; text-transform: uppercase; }
.tutorial-series h2 { margin: 0; font-size: clamp(30px, 4vw, 46px); line-height: 1.1; letter-spacing: -.045em; }
.tutorial-series header p:not(.card-label) { color: var(--muted); }
.tutorial-series .card-link { display: inline-block; margin-top: 18px; font-weight: 750; }
.series-count { margin: 0 0 14px; color: var(--muted); font: 500 11px/1.5 DM Mono, monospace; letter-spacing: .04em; }
.standalone-tutorials > h2 { margin: 0 0 24px; font-size: 30px; }
.article-cover { margin: 48px auto 0; overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: #54a6e8; box-shadow: var(--shadow); }
.article-cover img { width: 100%; }
.content-layout { display: grid; grid-template-columns: 240px minmax(0, 760px); gap: clamp(42px, 7vw, 86px); align-items: start; padding-block: 62px 110px; }
.content-sidebar { position: sticky; top: 24px; display: grid; gap: 16px; }
.content-toc, .series-toc { display: grid; gap: 9px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--surface) 92%, transparent); }
.content-toc strong { margin-bottom: 8px; color: var(--ink); font: 600 10px DM Mono, monospace; letter-spacing: .11em; text-transform: uppercase; }
.content-toc a { color: var(--muted); font-size: 12px; line-height: 1.5; }
.content-toc a:hover, .content-toc a:focus-visible { color: var(--flame-dark); }
.series-toc > strong { color: var(--ink); font-size: 13px; }
.series-toc ol { display: grid; gap: 7px; margin: 5px 0 0; padding-left: 24px; }
.series-toc li { color: var(--muted); font: 500 11px/1.45 DM Mono, monospace; }
.series-toc li[aria-current="page"] { color: var(--flame-dark); font-weight: 700; }
.series-toc a:hover, .series-toc a:focus-visible { color: var(--flame-dark); }
.prose { min-width: 0; font-size: 17px; line-height: 1.86; }
.prose > :first-child { margin-top: 0; }
.prose h2, .prose h3 { scroll-margin-top: 28px; color: var(--ink); letter-spacing: -.035em; line-height: 1.24; }
.prose h2 { margin: 76px 0 22px; padding-top: 8px; font-size: clamp(30px, 4vw, 42px); }
.prose h3 { margin: 46px 0 16px; font-size: 24px; }
.prose p, .prose li { color: var(--ink-2); }
.prose li + li { margin-top: 9px; }
.prose a { color: var(--flame-dark); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose blockquote { margin: 34px 0; padding: 22px 25px; border-left: 3px solid var(--violet); border-radius: 0 16px 16px 0; background: var(--violet-soft); }
.prose blockquote p { margin: 0; }
.prose pre { margin: 28px 0; padding: 22px; overflow-x: auto; border: 1px solid #303641; border-radius: 16px; background: #171a20; color: #f3f4f6; font: 500 13px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.prose code { padding: .12em .35em; border-radius: 5px; background: var(--soft); font: .88em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.prose pre code { padding: 0; background: transparent; font-size: inherit; }
.prose table { display: block; width: 100%; margin: 30px 0; overflow-x: auto; border-collapse: collapse; font-size: 14px; line-height: 1.6; }
.prose th, .prose td { min-width: 140px; padding: 12px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: var(--soft); color: var(--ink); font-weight: 750; }
.prose ul ul, .prose ol ol, .prose ul ol, .prose ol ul { margin-block: 8px; }
.prose figure { margin: 44px 0; }
.prose figure img { width: 100%; border: 1px solid var(--line); border-radius: 18px; background: #eaf6ff; }
.prose figcaption { margin-top: 10px; color: var(--muted); font-size: 12px; text-align: center; }
.prose .lead { color: var(--ink); font-size: 21px; line-height: 1.75; }
.prose .chapter-note { margin: 30px 0; padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.prose .chapter-note strong { display: block; margin-bottom: 6px; }
.chapter-list { display: grid; gap: 12px; margin: 34px 0 0; padding: 0; list-style: none; counter-reset: chapter; }
.chapter-list li { counter-increment: chapter; }
.chapter-list a { display: grid; grid-template-columns: 42px 1fr auto; gap: 14px; align-items: center; padding: 17px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--ink); text-decoration: none; }
.chapter-list a::before { content: counter(chapter, decimal-leading-zero); color: var(--flame-dark); font: 600 10px DM Mono, monospace; }
.chapter-list .chapter-title { color: var(--ink); font-weight: 700; }
.chapter-list .chapter-arrow { color: var(--muted); }
.chapter-list a:hover, .chapter-list a:focus-visible { border-color: rgba(198,67,26,.38); }
.series-pagination { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 68px; padding-top: 28px; border-top: 1px solid var(--line); }
.series-pagination a { display: grid; gap: 5px; padding: 18px; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); text-decoration: none; }
.series-pagination a:last-child { text-align: right; }
.series-pagination a:hover, .series-pagination a:focus-visible { border-color: rgba(198,67,26,.38); }
.series-pagination span { color: var(--muted); font: 500 10px/1.4 DM Mono, monospace; letter-spacing: .05em; text-transform: uppercase; }
.series-pagination strong { font-size: 14px; line-height: 1.45; }
.author-card { display: grid; grid-template-columns: 58px 1fr; gap: 16px; align-items: center; margin-top: 72px; padding: 24px; border-block: 1px solid var(--line); }
.author-card img { width: 58px; height: 58px; border-radius: 50%; object-fit: cover; }
.author-card strong { display: block; }
.author-card p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
.related-block { padding-block: 68px 90px; border-top: 1px solid var(--line); }
.related-block h2 { margin: 0 0 28px; font-size: 30px; letter-spacing: -.04em; }

.search-header { padding-block: clamp(48px, 7vw, 76px) clamp(38px, 5vw, 56px); }
.search-header::after { display: none; }
.search-header h1 { max-width: 760px; font-size: clamp(42px, 6vw, 68px); }
.search-header .content-lede { max-width: 760px; }
.search-shell { padding-block: clamp(30px, 5vw, 58px) clamp(74px, 9vw, 110px); }
.search-panel { padding: clamp(22px, 4vw, 40px); border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 18px 58px rgba(20,22,26,.07); }
.search-form { display: grid; gap: 28px; }
.search-primary, .search-filters label { display: grid; gap: 9px; }
.search-label, .search-filters label > span, .search-filters legend { color: var(--ink-2); font: 700 11px/1.4 DM Mono, ui-monospace, monospace; letter-spacing: .06em; text-transform: uppercase; }
.search-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; }
.search-row input, .search-filters select { width: 100%; min-height: 52px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); color: var(--ink); font: 600 15px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; transition: border-color .18s ease, box-shadow .18s ease, background .18s ease; }
.search-row input { min-height: 58px; padding: 0 18px; font-size: 17px; }
.search-row input::placeholder { color: color-mix(in srgb, var(--muted) 76%, transparent); font-weight: 500; }
.search-filters select { padding: 0 38px 0 14px; cursor: pointer; }
.search-row input:hover, .search-filters select:hover { border-color: color-mix(in srgb, var(--muted) 55%, var(--line)); }
.search-row input:focus-visible, .search-filters select:focus-visible, .search-reset:focus-visible, .search-more:focus-visible { outline: 3px solid color-mix(in srgb, var(--flame) 34%, transparent); outline-offset: 2px; border-color: var(--flame-dark); box-shadow: 0 0 0 1px var(--flame-dark); }
.search-submit { min-width: 116px; min-height: 58px; border: 0; cursor: pointer; font: 750 15px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.search-submit:disabled, .search-more:disabled { cursor: wait; opacity: .62; transform: none; }
.search-filters { min-width: 0; margin: 0; padding: 22px 0 0; border: 0; border-top: 1px solid var(--line); }
.search-filters legend { padding: 0 12px 0 0; }
.search-filter-grid { display: grid; grid-template-columns: repeat(4, minmax(120px, 1fr)) auto; gap: 14px; align-items: end; }
.search-reset { min-height: 52px; padding: 0 18px; border: 1px solid var(--line); border-radius: 13px; background: transparent; color: var(--muted); cursor: pointer; font: 750 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.search-reset:hover { border-color: var(--flame-dark); color: var(--flame-dark); }
.search-output { margin-top: 26px; }
.search-status { min-height: 24px; margin: 0 0 18px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.search-status[data-state="initial"], .search-status[data-state="empty"], .search-status[data-state="error"] { padding: 15px 18px; border: 1px solid var(--line); border-radius: 13px; background: color-mix(in srgb, var(--surface) 82%, transparent); }
.search-status[data-state="error"] { border-color: color-mix(in srgb, var(--flame-dark) 38%, var(--line)); color: var(--flame-dark); }
.search-status:focus-visible { outline: 3px solid color-mix(in srgb, var(--flame) 34%, transparent); outline-offset: 3px; }
.search-results { display: grid; gap: 16px; }
.search-result { display: grid; gap: 11px; padding: clamp(22px, 3vw, 32px); border: 1px solid var(--line); border-radius: 20px; background: var(--surface); box-shadow: 0 12px 38px rgba(20,22,26,.045); transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.search-result:hover, .search-result:focus-within { transform: translateY(-2px); border-color: color-mix(in srgb, var(--flame-dark) 42%, var(--line)); box-shadow: 0 18px 48px rgba(20,22,26,.075); }
.search-result-meta { margin: 0; color: var(--flame-dark); font: 650 10px/1.5 DM Mono, ui-monospace, monospace; letter-spacing: .055em; text-transform: uppercase; }
.search-result h2 { max-width: 850px; margin: 0; font-size: clamp(22px, 3vw, 31px); line-height: 1.2; letter-spacing: -.035em; }
.search-result h2 a:focus-visible, .search-result-action:focus-visible { outline: 3px solid color-mix(in srgb, var(--flame) 34%, transparent); outline-offset: 3px; border-radius: 4px; }
.search-result-excerpt { max-width: 840px; margin: 2px 0 0; color: var(--ink-2); font-size: 15px; line-height: 1.75; }
.search-result-excerpt mark { padding: .08em .2em; border-radius: 4px; background: var(--flame-soft); color: var(--ink); font-weight: 750; }
.search-result-action { width: fit-content; margin-top: 4px; color: var(--flame-dark); font-size: 13px; font-weight: 750; }
.search-more-row { display: flex; justify-content: center; margin-top: 24px; }
.search-more { min-height: 48px; border: 1px solid var(--line); cursor: pointer; font: 750 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.search-more[hidden] { display: none; }
.search-noscript { margin-top: 24px; padding: 20px 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); color: var(--ink-2); }
.search-noscript p { margin-top: 0; }
.search-noscript ul { display: flex; flex-wrap: wrap; gap: 9px 18px; margin: 0; padding: 0; list-style: none; }
.search-noscript a { color: var(--flame-dark); text-decoration: underline; text-underline-offset: 3px; }
.search-skeleton { display: grid; gap: 13px; padding: clamp(22px, 3vw, 32px); border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.search-skeleton > * { display: block; height: 13px; border-radius: 999px; background: linear-gradient(90deg, var(--soft), color-mix(in srgb, var(--surface) 76%, var(--soft)), var(--soft)); background-size: 220% 100%; animation: search-shimmer 1.2s ease-in-out infinite; }
.search-skeleton span { width: 22%; height: 9px; }
.search-skeleton strong { width: 68%; height: 28px; }
.search-skeleton i:nth-child(3) { width: 92%; }
.search-skeleton i:nth-child(4) { width: 58%; }
@keyframes search-shimmer { to { background-position: -220% 0; } }

@media (max-width: 820px) {
  .content-header::after { opacity: .42; }
  .content-grid, .content-layout, .tutorial-series { grid-template-columns: 1fr; }
  .content-sidebar { position: static; }
  .content-layout { gap: 34px; }
  .search-filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .search-reset { align-self: end; }
}

@media (max-width: 640px) {
  .content-shell { width: min(100% - 30px, 1120px); }
  .content-nav .language-switch-six { gap: 3px; padding-inline: 6px; }
  .content-header { padding-top: 48px; }
  .content-card { min-height: 240px; }
  .prose { font-size: 16px; }
  .prose h2 { margin-top: 58px; }
  .chapter-list a { grid-template-columns: 32px 1fr; }
  .chapter-list .chapter-arrow { display: none; }
  .series-pagination { grid-template-columns: 1fr; }
  .series-pagination a:last-child { text-align: left; }
  .search-header { padding-block: 42px 34px; }
  .search-shell { padding-top: 24px; }
  .search-panel { padding: 19px; border-radius: 19px; }
  .search-row, .search-filter-grid { grid-template-columns: 1fr; }
  .search-submit, .search-reset { width: 100%; min-height: 48px; }
  .search-result { border-radius: 17px; }
}

@media (prefers-color-scheme: dark) {
  .content-header::after, .content-card, .tutorial-series, .content-toc, .series-toc, .prose .chapter-note, .chapter-list a, .search-panel, .search-result, .search-skeleton { background: var(--surface); }
  .prose figure img { border-color: #344356; }
}