.reading-progress{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:60;pointer-events:none}.reading-progress__bar{width:0;height:100%;background:var(--sq-blue-700);transition:width 80ms linear}.post-faq .section-heading{margin:0 auto 48px;max-width:22ch}.post-hero{color:var(--ld-ink);padding:40px 0 clamp(3.5rem,6vw,5.5rem)}.post-hero__inner{max-width:52rem;margin-inline:auto;text-align:center;display:flex;flex-direction:column;align-items:center}.post-hero__eyebrow{margin:0 0 24px}.post-hero__h1{margin:0 0 20px;font-size:var(--sq-h1);font-weight:500;letter-spacing:-.04em;line-height:1.08;color:var(--ld-ink);max-width:22ch;text-wrap:balance}.post-hero__h1 em{font-style:normal;font-weight:inherit;color:var(--sq-blue-700);letter-spacing:inherit}.post-hero__teaser{margin:0 auto;font-size:1.25rem;line-height:1.5;letter-spacing:-.01em;color:var(--ld-text-2);max-width:44rem}.post-hero__byline{display:inline-flex;align-items:center;gap:12px;margin-top:28px;padding-top:24px;border-top:1px solid var(--ld-border)}.post-hero__avatar{width:44px;height:44px;background:var(--sq-blue-700);color:var(--sq-paper);display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;letter-spacing:.04em;border-radius:50%;flex-shrink:0;object-fit:cover}.post-hero__byline-text{min-width:0;text-align:left}.post-hero__name{font-size:14px;font-weight:600;color:var(--ld-ink)}.post-hero__meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--ld-text-2);margin-top:3px}.post-hero__media{margin:clamp(2.5rem,5vw,3.5rem) auto 0;width:100%;max-width:60rem;aspect-ratio:16 / 9;overflow:hidden;border-radius:var(--ld-r-frame);background:var(--ld-smoke-2)}.post-hero__media img{width:100%;height:100%;object-fit:cover;display:block}@media(max-width:48rem){.post-hero{padding-top:24px}.post-hero__media{margin-top:28px}.post-shell,.post-faq{padding-block:3rem}}.post-shell{color:var(--sq-ink-900);padding-block:4.5rem}.post-shell__inner{display:grid;grid-template-columns:1fr;gap:48px}@media(min-width:64rem){.post-shell__inner{grid-template-columns:260px minmax(0,1fr);gap:64px;max-width:1200px}}.post-toc{order:-1}@media(min-width:64rem){.post-toc{order:0}}.post-toc__sticky{position:sticky;top:24px;padding:22px 20px 18px;border-radius:var(--sq-radius-lg);background:var(--sq-paper);max-height:calc(100vh - 48px);overflow-y:auto}.post-toc__label{display:flex;align-items:center;gap:8px;margin:0 0 14px;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--sq-ink-950)}.post-toc__label-dot{width:8px;height:8px;border-radius:50%;background:var(--sq-blue-700);flex-shrink:0}.post-toc__progress{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:0 0 18px;padding:10px 12px;background:var(--sq-paper);border-left:3px solid var(--sq-blue-700)}.post-toc__progress-label{font-size:10px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--sq-ink-700)}.post-toc__progress-num{display:inline-flex;align-items:baseline;gap:4px;font-size:14px;font-weight:600;color:var(--sq-ink-950);font-variant-numeric:tabular-nums;letter-spacing:.04em}.post-toc__progress-num [data-toc-current]{color:var(--sq-blue-700)}.post-toc__progress-sep{color:var(--sq-ink-300);padding:0 2px}.post-toc ol{list-style:none;padding:0;margin:0;display:grid;gap:2px}.post-toc a,.post-toc__faq{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:baseline;padding:10px;font-size:13.5px;font-weight:600;line-height:1.4;color:var(--sq-ink-700);text-decoration:none;border-left:2px solid transparent;margin-left:-2px;transition:color .12s ease,background .12s ease,border-color .12s ease}.post-toc a:hover,.post-toc__faq:hover{color:var(--sq-blue-700);background:var(--sq-paper-elev)}.post-toc a.is-active{color:var(--sq-blue-700);background:var(--sq-paper-elev);border-left-color:var(--sq-blue-700);font-weight:600}.post-toc__num{font-family:var(--sq-font);font-size:11px;font-weight:600;color:var(--sq-ink-300);font-variant-numeric:tabular-nums;letter-spacing:.04em}.post-toc a.is-active .post-toc__num{color:var(--sq-blue-700)}.post-toc__faq{margin-top:6px;padding-top:14px;border-top:1.5px solid var(--sq-ink-100)}.post-body{max-width:720px;font-size:17px;line-height:1.75;color:var(--sq-ink-900);counter-reset:chapter}.post-body>:first-child{margin-top:0}.post-body>:last-child{margin-bottom:0}.post-body>p:first-of-type:first-letter,.post-body>.key-takeaways+p:first-letter,.post-body>aside:first-child+p:first-letter{float:left;font-size:3.6em;line-height:.88;font-weight:600;color:var(--sq-blue-700);padding:6px 12px 0 0;margin-top:4px;font-variation-settings:"opsz" 48,"wght" 600}.post-body p,.post-body ul:not([class]),.post-body ol:not([class]){margin:0 0 20px;max-width:68ch}.post-body ul:not([class]),.post-body ol:not([class]){padding-left:22px}.post-body :is(ul,ol):not([class])>li{margin-bottom:8px;line-height:1.65}.post-body :is(ul,ol):not([class])>li::marker{color:var(--sq-blue-700)}.post-body h2{position:relative;margin:80px 0 22px;padding-top:36px;font-size:var(--sq-h3);font-weight:500;letter-spacing:-.03em;line-height:1.15;color:var(--ld-ink);max-width:24ch;scroll-margin-top:40px;counter-increment:chapter}.post-body h2:before{content:"Chapter " counter(chapter,decimal-leading-zero);position:absolute;top:0;left:0;display:inline-flex;align-items:center;height:22px;padding-left:72px;font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--sq-ink-950);font-variant-numeric:tabular-nums;background-image:linear-gradient(var(--sq-blue-700),var(--sq-blue-700));background-position:0 50%;background-size:56px 4px;background-repeat:no-repeat}.post-body h2 em{font-style:normal;font-weight:inherit;color:var(--sq-blue-700);letter-spacing:inherit}.post-body h3{margin:40px 0 12px;font-size:clamp(20px,2.2vw,24px);font-weight:500;letter-spacing:-.02em;line-height:1.3;color:var(--ld-ink);max-width:32ch;scroll-margin-top:40px}.post-body h3 em{font-style:normal;color:var(--sq-blue-700)}.post-body :is(p,li,blockquote,figcaption,dd) a:not(.heading-anchor){color:var(--sq-blue-700);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:#1d5bfb66;transition:text-decoration-color .12s ease,color .12s ease}.post-body :is(p,li,blockquote,figcaption,dd) a:not(.heading-anchor):hover{color:var(--sq-blue-800);text-decoration-color:var(--sq-blue-700)}.heading-anchor{margin-left:8px;color:var(--sq-ink-300);font-weight:400;text-decoration:none;opacity:0;transition:opacity .12s ease,color .12s ease}.post-body h2:hover .heading-anchor,.post-body h3:hover .heading-anchor{opacity:1}.heading-anchor:hover{color:var(--sq-blue-700)}.post-body strong{font-weight:600;color:var(--sq-ink-950)}.post-body em{font-style:italic}.post-body blockquote{margin:36px 0;padding:22px 24px 22px 26px;background:var(--sq-paper);border-left:6px solid var(--sq-blue-700);border-radius:0 var(--sq-radius-lg) var(--sq-radius-lg) 0;color:var(--sq-ink-900);font-size:19px;line-height:1.55;max-width:64ch}.post-body blockquote p{margin:0}.post-body blockquote p+p{margin-top:12px}.post-body hr{border:0;border-top:1px solid var(--sq-border-card);margin:48px 0;max-width:68ch}.post-body>p>img,.post-body>img{display:block;max-width:100%;height:auto;margin:32px 0;border-radius:var(--sq-radius-lg)}.post-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;padding:2px 6px;background:var(--sq-paper);border:1px solid var(--sq-ink-100);border-radius:var(--sq-radius-sm);color:var(--sq-ink-950)}.post-body pre{background:var(--sq-ink-950);color:var(--sq-paper);padding:20px 22px;margin:32px 0;overflow-x:auto;border-radius:var(--sq-radius-md);font-size:14px;line-height:1.55}.post-body pre code{background:transparent;border:0;color:inherit;padding:0;font-size:inherit}.post-faq{background:var(--sq-paper-elev);padding-block:4.5rem}.post-faq__inner{max-width:880px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}