.reading-hero { padding: clamp(55px, 7vw, 95px) var(--pad); background: radial-gradient(85% 140% at 0 0, rgba(95,224,224,.4), transparent 70%), radial-gradient(70% 110% at 100% 30%, rgba(201,182,242,.4), transparent 75%), var(--cream); }
.reading-hero h1 { max-width: 980px; font-size: clamp(36px, 5.2vw, 68px); line-height: 1.06; }
.reading-hero .lead { max-width: 780px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 32px; font-size: 12px; }
.breadcrumbs a, .byline a, .article a, .reading-body a, .reading-toc a, .related a { text-decoration: underline; text-underline-offset: 4px; }
.byline { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin-top: 28px; color: var(--graphite); font-size: 13px; }
.reading-layout { display: grid; grid-template-columns: 220px minmax(0, 740px); gap: clamp(35px, 6vw, 80px); padding: 64px var(--pad) 84px; background: var(--white); }
.reading-toc { align-self: start; padding: 20px 0; border-top: 2px solid var(--ink); font-size: 13px; }
.reading-toc strong { display: block; margin-bottom: 16px; }
.reading-toc ol { margin: 0; padding-left: 20px; }
.reading-toc li { padding: 0 0 12px 4px; }
.reading-body { min-width: 0; color: var(--graphite); font-size: 17px; line-height: 1.8; overflow-wrap: anywhere; }
.reading-body h2 { margin: 48px 0 20px; color: var(--ink); font-size: clamp(28px, 3vw, 37px); line-height: 1.14; scroll-margin-top: 24px; }
.reading-body h2:first-child { margin-top: 0; }
.reading-body h3 { margin-top: 30px; color: var(--ink); font-size: 24px; line-height: 1.25; }
.reading-body p, .reading-body ul, .reading-body ol { margin-bottom: 24px; }
.reading-body li { margin-bottom: 12px; }
.reading-body strong { color: var(--ink); }
.reading-body blockquote, .worked-example { margin: 28px 0; padding: 22px 26px; border-left: 3px solid var(--ink); background: var(--cream); }
.reading-body blockquote p:last-child, .worked-example p:last-child { margin-bottom: 0; }
.reading-body code { font-size: .9em; }
.reading-body .article-cta { margin-top: 48px; padding: 28px; background: var(--mint); }
.article-cta h2 { margin-top: 0; }
.article-cta .button { text-decoration: none; }
.related { padding: 48px var(--pad); border-top: 1px solid var(--line); }
.related h2 { font-size: 32px; }
.related ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; padding-left: 20px; }
.article em { max-width: 140px; color: var(--graphite); }
.article h3 { line-height: 1.2; }
.article h3 a { text-decoration: none; }
.article h3 a:hover { text-decoration: underline; }
@media (max-width: 850px) {
  .reading-layout { grid-template-columns: 1fr; padding-top: 38px; }
  .reading-toc { max-width: 740px; }
  .reading-toc ol { columns: 2; column-gap: 32px; }
  .reading-toc li { break-inside: avoid; }
  .related ul { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .reading-toc ol { columns: 1; }
  .reading-body { font-size: 16px; }
  .reading-body blockquote, .worked-example, .reading-body .article-cta { padding: 20px; }
  .article { grid-template-columns: 26px minmax(0, 1fr); gap: 15px; }
}