.reading-progress[data-astro-cid-2y7irkhc]{z-index:50;pointer-events:none;background:#ffffff14;height:3px;position:fixed;top:74px;left:0;right:0}.reading-progress-bar[data-astro-cid-2y7irkhc]{background:var(--red);transform-origin:0;will-change:transform;width:100%;height:100%;transform:scaleX(0)}.chapter-hero[data-astro-cid-2y7irkhc]{background:radial-gradient(circle at 80% 20%, #d3292f33, transparent 28%), linear-gradient(135deg, var(--navy), var(--navy-2));padding:7rem 0 5rem}h1[data-astro-cid-2y7irkhc]{text-transform:uppercase;margin:.5rem 0 1rem;font-size:clamp(4rem,10vw,8rem);line-height:.9}.problem[data-astro-cid-2y7irkhc]{color:#b8c4cf;margin:0;font-size:1.05rem}.problem[data-astro-cid-2y7irkhc] strong[data-astro-cid-2y7irkhc]{color:#fff}.chapter-nav[data-astro-cid-2y7irkhc]{z-index:40;background:#06111f;border-top:1px solid #ffffff14;border-bottom:1px solid #ffffff14;position:sticky;top:74px}.chapter-nav-inner[data-astro-cid-2y7irkhc]{scrollbar-width:thin;gap:.35rem;padding-top:.55rem;padding-bottom:.55rem;display:flex;overflow-x:auto}.chapter-link[data-astro-cid-2y7irkhc]{color:#9eabb7;text-transform:uppercase;letter-spacing:.07em;white-space:nowrap;flex:none;padding:.55rem .75rem;font-size:.7rem;font-weight:900;text-decoration:none}.chapter-link[data-astro-cid-2y7irkhc]:hover{color:#fff}.chapter-link[data-astro-cid-2y7irkhc].active{color:var(--red)}.opening[data-astro-cid-2y7irkhc]{color:#fff;background:#0a1c30;padding:clamp(5rem,10vw,9rem) 0}.opening-inner[data-astro-cid-2y7irkhc]{max-width:1050px}.opening-label[data-astro-cid-2y7irkhc]{color:var(--red);letter-spacing:.14em;text-transform:uppercase;margin:0 0 2rem;font-size:.72rem;font-weight:950}blockquote[data-astro-cid-2y7irkhc]{letter-spacing:-.045em;text-transform:uppercase;max-width:13ch;margin:0;font-size:clamp(3rem,7vw,6.5rem);font-weight:950;line-height:.95}.paper[data-astro-cid-2y7irkhc]{background:var(--paper);color:var(--ink);padding:clamp(5rem,9vw,8rem) 0}.chapter-body[data-astro-cid-2y7irkhc]{max-width:900px}article[data-astro-cid-2y7irkhc]{max-width:760px}.foundation-section[data-astro-cid-2y7irkhc]+.foundation-section[data-astro-cid-2y7irkhc]{margin-top:3.5rem}article[data-astro-cid-2y7irkhc] h2,.foundation-section[data-astro-cid-2y7irkhc] h2[data-astro-cid-2y7irkhc]{text-transform:uppercase;margin:0 0 1rem;font-size:clamp(2.5rem,5vw,4.5rem);line-height:.95}article[data-astro-cid-2y7irkhc] p,.foundation-section[data-astro-cid-2y7irkhc] p[data-astro-cid-2y7irkhc]{color:#3e4a55;margin:0 0 1.25rem;font-size:clamp(1.08rem,2vw,1.3rem);line-height:1.7}article[data-astro-cid-2y7irkhc] .emphasis{border-left:4px solid var(--red);color:var(--ink);margin:3rem 0;padding-left:1.5rem;font-size:clamp(1.4rem,3vw,2rem);font-weight:900;line-height:1.25}article[data-astro-cid-2y7irkhc] .final-thought{color:var(--ink);text-transform:uppercase;margin-top:4rem;font-size:clamp(1.8rem,4vw,3rem);font-weight:950;line-height:1.05}.chapter-quote[data-astro-cid-2y7irkhc]{border-top:1px solid var(--paper-line);text-transform:uppercase;margin-top:4rem;padding-top:2.5rem;font-size:clamp(1.8rem,3.6vw,3.2rem);font-weight:950;line-height:1.05}.chapter-close[data-astro-cid-2y7irkhc]{color:#fff;background:#06111f;padding:clamp(5rem,9vw,8rem) 0}.close-inner[data-astro-cid-2y7irkhc]{max-width:1100px}.closing-statement[data-astro-cid-2y7irkhc]{color:#aeb9c3;max-width:850px;margin:0 0 2rem;font-size:clamp(1.2rem,2.5vw,1.65rem);line-height:1.5}.chapter-close[data-astro-cid-2y7irkhc] h2[data-astro-cid-2y7irkhc]{text-transform:uppercase;max-width:900px;margin:0;font-size:clamp(3rem,7vw,6rem);line-height:.95}.next-description[data-astro-cid-2y7irkhc]{color:#8f9ba7;max-width:720px;margin:2rem 0 0;font-size:1rem;line-height:1.6}.chapter-actions[data-astro-cid-2y7irkhc]{gap:1rem;max-width:700px;margin-top:2.5rem;display:grid}.chapter-action[data-astro-cid-2y7irkhc]{color:#fff;background:#ffffff04;border:1px solid #ffffff2e;flex-direction:column;justify-content:center;min-height:104px;padding:1.3rem 1.45rem;text-decoration:none;transition:transform .2s,border-color .2s,background-color .2s;display:flex}.action-label[data-astro-cid-2y7irkhc]{color:#8f9ba7;letter-spacing:.1em;text-transform:uppercase;margin-bottom:.45rem;font-size:.7rem;font-weight:900;line-height:1;transition:color .2s;display:block}.action-destination[data-astro-cid-2y7irkhc]{justify-content:space-between;align-items:center;gap:1.5rem;display:flex}.action-destination[data-astro-cid-2y7irkhc] strong[data-astro-cid-2y7irkhc]{text-transform:uppercase;font-size:clamp(1.15rem,2.4vw,1.6rem);line-height:1.1;transition:color .2s}.action-destination[data-astro-cid-2y7irkhc] i[data-astro-cid-2y7irkhc]{flex:none;font-size:1.55rem;font-style:normal;transition:color .2s,transform .2s}.chapter-action[data-astro-cid-2y7irkhc]:hover{border-color:var(--red);background:#d3292f14;transform:translateY(-4px)}.chapter-action[data-astro-cid-2y7irkhc]:hover .action-label[data-astro-cid-2y7irkhc],.chapter-action[data-astro-cid-2y7irkhc]:hover strong[data-astro-cid-2y7irkhc],.chapter-action[data-astro-cid-2y7irkhc]:hover i[data-astro-cid-2y7irkhc]{color:var(--red)}.chapter-action[data-astro-cid-2y7irkhc]:hover i[data-astro-cid-2y7irkhc]{transform:translate(5px)}.chapter-action[data-astro-cid-2y7irkhc]:focus-visible{outline:3px solid var(--red);outline-offset:4px}@media (width<=760px){.chapter-hero[data-astro-cid-2y7irkhc]{padding:5rem 0 4rem}.chapter-action[data-astro-cid-2y7irkhc]{min-height:94px}}@media (prefers-reduced-motion:reduce){.chapter-action[data-astro-cid-2y7irkhc],.chapter-action[data-astro-cid-2y7irkhc] i[data-astro-cid-2y7irkhc]{transition:none}.chapter-action[data-astro-cid-2y7irkhc]:hover,.chapter-action[data-astro-cid-2y7irkhc]:hover i[data-astro-cid-2y7irkhc]{transform:none}}