.reading-progress[data-astro-cid-xjewwabi]{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:100;pointer-events:none}.reading-progress-fill[data-astro-cid-xjewwabi]{height:100%;width:0%;background:var(--color-accent);transition:width 60ms linear}.chapter-page[data-astro-cid-xjewwabi]{max-width:760px;margin-inline:auto;padding:40px 24px 96px}@media(min-width:1024px){.chapter-page[data-astro-cid-xjewwabi]{padding-inline:40px}}.chapter-crumbs[data-astro-cid-xjewwabi]{margin:0 0 20px;font-family:var(--font-sans);font-size:.85rem;color:var(--color-text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center}.crumb-link[data-astro-cid-xjewwabi]{color:var(--color-text-3);text-decoration:none;transition:color .15s ease}.crumb-link[data-astro-cid-xjewwabi]:hover{color:var(--color-accent)}.crumb-sep[data-astro-cid-xjewwabi]{color:var(--color-text-3)}.crumb-current[data-astro-cid-xjewwabi]{color:var(--color-text-2);font-weight:600}.chapter-hero[data-astro-cid-xjewwabi]{margin:0 0 32px}.chapter-title[data-astro-cid-xjewwabi]{margin:0 0 14px;font-family:var(--font-sans);font-size:clamp(2rem,3.2vw,2.8rem);font-weight:600;line-height:1.08;letter-spacing:-.04em;color:var(--color-text)}.chapter-dek[data-astro-cid-xjewwabi]{margin:0 0 14px;font-family:var(--font-sans);font-size:1.18rem;line-height:1.55;color:var(--color-text-2)}.chapter-meta[data-astro-cid-xjewwabi]{margin:0;font-family:var(--font-sans);font-size:.85rem;color:var(--color-text-3)}.chapter-audio[data-astro-cid-xjewwabi]{margin:0 0 28px}.chapter-video[data-astro-cid-xjewwabi]{margin:0 0 40px}.chapter-video-frame[data-astro-cid-xjewwabi]{aspect-ratio:16 / 9;border-radius:var(--radius-lg);overflow:hidden;background:#000;border:1px solid var(--color-border)}.chapter-video-frame[data-astro-cid-xjewwabi] iframe[data-astro-cid-xjewwabi]{width:100%;height:100%;border:0}.chapter-intro[data-astro-cid-xjewwabi]{margin:0 0 40px;padding:28px 32px;background:linear-gradient(180deg,var(--color-card) 0%,var(--color-bg) 100%);border:1px solid var(--color-border);border-radius:var(--radius-lg);position:relative}.chapter-intro[data-astro-cid-xjewwabi]:before{content:"";position:absolute;top:0;bottom:0;left:0;width:4px;background:var(--color-accent);border-radius:var(--radius-lg) 0 0 var(--radius-lg)}.chapter-intro-eyebrow[data-astro-cid-xjewwabi]{margin:0 0 10px;font-family:var(--font-sans);font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent)}.chapter-intro-text[data-astro-cid-xjewwabi]{margin:0;font-family:var(--font-sans);font-size:1.08rem;font-weight:400;line-height:1.7;color:var(--color-text)}.section-h2[data-astro-cid-xjewwabi]{margin:0 0 16px;font-family:var(--font-sans);font-size:1.4rem;font-weight:600;line-height:1.2;letter-spacing:-.02em;color:var(--color-text)}.chapter-objectives[data-astro-cid-xjewwabi]{margin:0 0 48px;padding:24px 28px;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.objectives-list[data-astro-cid-xjewwabi]{margin:0;padding-left:22px;display:grid;gap:12px;font-family:var(--font-sans);font-size:1rem;line-height:1.55;color:var(--color-text)}.objectives-list[data-astro-cid-xjewwabi] li[data-astro-cid-xjewwabi]::marker{color:var(--color-accent)}.chapter-body[data-astro-cid-xjewwabi]{margin:0 0 48px}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi]{font-family:var(--font-sans);font-size:1.05rem;line-height:1.78;color:var(--color-text)}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi]>[data-astro-cid-xjewwabi]+[data-astro-cid-xjewwabi]{margin-top:1.15em}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] h2[data-astro-cid-xjewwabi]{margin-top:2.4em;margin-bottom:.65em;font-size:1.55rem;font-weight:600;line-height:1.25;letter-spacing:-.02em;color:var(--color-text)}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] h3[data-astro-cid-xjewwabi]{margin-top:1.9em;margin-bottom:.5em;font-size:1.22rem;font-weight:600;line-height:1.3;color:var(--color-text)}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] p[data-astro-cid-xjewwabi]{margin:0}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] ul[data-astro-cid-xjewwabi],.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] ol[data-astro-cid-xjewwabi]{padding-left:1.5em;display:grid;gap:10px}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] li[data-astro-cid-xjewwabi]::marker{color:var(--color-accent)}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] a[data-astro-cid-xjewwabi]{color:var(--color-accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] strong[data-astro-cid-xjewwabi]{font-weight:600;color:var(--color-text)}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] code[data-astro-cid-xjewwabi]{padding:2px 6px;border-radius:4px;background:var(--color-card);border:1px solid var(--color-border);font-family:ui-monospace,Menlo,monospace;font-size:.92em}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] pre[data-astro-cid-xjewwabi]{padding:16px 18px;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow-x:auto;font-family:ui-monospace,Menlo,monospace;font-size:.9rem;line-height:1.55}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] pre[data-astro-cid-xjewwabi] code[data-astro-cid-xjewwabi]{padding:0;background:transparent;border:0}.chapter-body--md[data-astro-cid-xjewwabi] .md-content[data-astro-cid-xjewwabi] blockquote[data-astro-cid-xjewwabi]{margin:0;padding:14px 20px;border-left:3px solid var(--color-accent);color:var(--color-text-2);font-style:italic;background:var(--color-card);border-radius:0 var(--radius-md) var(--radius-md) 0}.inline-diagram[data-astro-cid-xjewwabi]{margin:36px 0;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;text-align:center}.inline-diagram[data-astro-cid-xjewwabi] a[data-astro-cid-xjewwabi]{display:block;background:#fff;cursor:zoom-in}.inline-diagram[data-astro-cid-xjewwabi] img[data-astro-cid-xjewwabi]{width:100%;height:auto;display:block;transition:transform .2s ease}.inline-diagram[data-astro-cid-xjewwabi]:hover img[data-astro-cid-xjewwabi]{transform:scale(1.01)}.inline-diagram[data-astro-cid-xjewwabi] figcaption[data-astro-cid-xjewwabi]{padding:14px 20px;font-family:var(--font-sans);font-size:.9rem;font-weight:500;line-height:1.4;color:var(--color-text-2);text-align:left;border-top:1px solid var(--color-border)}.chapter-cliffhanger[data-astro-cid-xjewwabi]{margin:0 0 32px;padding:24px 28px;background:var(--color-card);border:1px solid var(--color-border);border-left:4px solid var(--color-accent);border-radius:0 var(--radius-lg) var(--radius-lg) 0}.cliffhanger-label[data-astro-cid-xjewwabi]{margin:0 0 8px;font-family:var(--font-sans);font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent)}.cliffhanger-text[data-astro-cid-xjewwabi]{margin:0;font-family:var(--font-sans);font-size:1.02rem;font-style:italic;line-height:1.65;color:var(--color-text)}.chapter-prev-next[data-astro-cid-xjewwabi]{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:640px){.chapter-prev-next[data-astro-cid-xjewwabi]{grid-template-columns:1fr}}.pn-card[data-astro-cid-xjewwabi]{display:block;padding:18px 22px;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:inherit;text-decoration:none;transition:transform .15s ease,box-shadow .15s ease}.pn-card[data-astro-cid-xjewwabi]:hover{transform:translateY(-1px);box-shadow:0 6px 18px #0000000d}.pn-placeholder[data-astro-cid-xjewwabi]{background:transparent;border-style:dashed;opacity:.4;pointer-events:none}.pn-prev[data-astro-cid-xjewwabi]{text-align:left}.pn-next[data-astro-cid-xjewwabi]{text-align:right}.pn-label[data-astro-cid-xjewwabi]{margin:0 0 6px;font-family:var(--font-sans);font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--color-accent)}.pn-num[data-astro-cid-xjewwabi]{margin:0 0 4px;font-family:var(--font-sans);font-size:.85rem;color:var(--color-text-3)}.pn-title[data-astro-cid-xjewwabi]{margin:0;font-family:var(--font-sans);font-size:1.02rem;font-weight:600;line-height:1.3;color:var(--color-text)}