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.section{max-width:1328px;padding:74px 24px}.section-head{margin-bottom:30px;gap:24px}.section-head span{font-size:10px;letter-spacing:.12em;color:var(--muted)}.section-head h2{font-size:clamp(1.9rem,3vw,2.65rem);line-height:1.13;letter-spacing:-.045em;margin-top:12px}.section-head>a{font-size:12px;display:flex;align-items:center;gap:12px;border:0;white-space:nowrap}.section-head>a:hover{color:var(--blue)}.section-head>a .icon{width:18px}.section-head>p{font-size:13px;color:var(--muted)}.lead-grid{grid-template-columns:1.08fr 1fr;gap:24px}.card{border:1px solid #e4e3dc;border-radius:20px;background:#fff;overflow:hidden;transition:transform .22s,border-color .22s;isolation:auto}.card:before,.card-art:after{display:none}.card:hover,.card:focus-within{transform:translateY(-4px);box-shadow:none;border-color:#bebbd6}.card-art{aspect-ratio:1.8;display:block;padding:0;border:0;position:relative;background:#f1efe9;overflow:hidden}.card-art>img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}.card:hover .card-art>img{transform:scale(1.035)}.art-label{position:absolute;top:15px;left:15px;display:inline-flex;gap:6px;align-items:center;border-radius:999px;background:rgba(255,255,255,.93);padding:7px 10px;font-size:9px;font-weight:700;text-transform:none}.art-label .icon{width:13px;height:13px}.card-open{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;justify-content:center;width:33px;height:33px;border-radius:50%;background:var(--ink);color:white;transform:rotate(-35deg)}.card-open .icon{width:17px;height:17px}.card-copy{padding:24px}.card .meta{font-size:9px;letter-spacing:.065em;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.meta-dot{color:#bbb}.card h3{font-family:Arial,Helvetica,sans-serif;font-size:1.23rem;font-weight:700;line-height:1.3;letter-spacing:-.028em;margin:12px 0}.card p{font-size:13px;line-height:1.65;margin-bottom:22px}.read-link{font-size:11px;display:flex;align-items:center;gap:9px}.read-link .icon{width:16px;height:16px}.side-cards{gap:24px}.side-cards .card>a{grid-template-columns:42% minmax(0,1fr)}.side-cards .card-art{height:100%;border:0;aspect-ratio:auto}.side-cards .card-copy{padding:22px}.side-cards .card h3{font-size:1.18rem}.side-cards .art-label{left:10px;top:10px}.side-cards .card .meta{font-size:9px}.card-featured h3{font-size:1.6rem}.card-featured .card-copy{padding:27px}.cards{gap:24px}
.banner-wrap{max-width:1328px;padding:0 24px;margin:0 auto}.feature-banner{display:grid;grid-template-columns:1.2fr .8fr;overflow:hidden;background:var(--ink);color:#fff;border-radius:24px;min-width:0}.banner-copy{padding:48px;align-self:center}.banner-copy .eyebrow{display:flex;gap:8px;align-items:center;color:var(--lime);font-size:10px}.banner-copy .eyebrow .icon{width:17px}.banner-copy h2{font-size:clamp(2rem,3.4vw,3.2rem);line-height:1.06;letter-spacing:-.05em;margin:20px 0}.banner-copy p{font-size:14px;line-height:1.75;color:#bfc0c8;max-width:390px;margin-bottom:28px}.banner-copy .button{background:var(--lime);color:var(--ink);font-size:12px}.banner-copy .button:hover{background:#fff}.banner-art{min-width:0;overflow:hidden}.banner-art img{display:block;width:100%;height:100%;object-fit:cover}.banner-search{background:#eae8fb;color:var(--ink);margin-top:56px}.banner-search .eyebrow{color:#454bbb}.banner-search p{color:#56546b}.banner-search .button{background:var(--ink);color:white}
.section.dark{max-width:1328px;background:transparent;color:var(--ink);padding:74px 24px 0}.topics{grid-template-columns:repeat(3,minmax(0,1fr));border:0;gap:14px}.topics a{grid-template-columns:44px minmax(0,1fr) 20px;gap:14px;padding:24px 18px;border:1px solid var(--line);border-radius:16px;background:#fff;font-size:15px;transition:background .2s,border-color .2s}.topics a:nth-child(odd){border-right:1px solid var(--line)}.topics a:hover{background:#eeecfc;border-color:#d0cbef;color:var(--ink)}.topic-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:#eeecfc;border-radius:12px;color:#555cd5}.topics strong{font-size:13px;display:block}.topics small{display:block;font-size:10px;color:var(--muted);line-height:1.5;margin-top:5px}.topics a>.icon{width:18px;height:18px}.page-hero,.article-head{background:#eeecf8;color:var(--ink);border-bottom:1px solid #e0ddee;padding-top:62px;padding-bottom:56px}.page-hero h1{font-size:clamp(2.5rem,5vw,4.5rem);line-height:1.04}.article-head h1{font-size:clamp(2.3rem,4.2vw,4rem);line-height:1.1;letter-spacing:-.045em;max-width:960px}.article-head .meta{color:#55536c;font-size:10px;line-height:1.6}.article-head>p{font-family:Arial,sans-serif;font-size:1.1rem;line-height:1.7;color:#56546b}.disclosure{color:#625f75;border-color:#cfcbdf;font-size:12px;margin-top:24px}.updated{display:inline;margin-left:12px}.article-cover img{border:0;border-radius:18px}.article-body .lead{font-size:1.32rem}.toc a{padding:12px 0}.filters{gap:9px}.filters button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 17px;font-size:12px}.filters button:hover{background:#eeecfc;color:var(--ink)}.filters button.selected{background:var(--ink);color:#fff}.note,.formula{border:0;border-radius:12px;box-shadow:none}.prose-page h2{letter-spacing:-.04em}footer{border-radius:28px 28px 0 0;padding-top:56px;padding-bottom:35px}footer .footer-brand{font-size:1.5rem}footer p{font-size:13px}.footer-links{font-size:12px}footer small{font-size:10px;color:#a0a1ac}:where(a,button):focus-visible{outline:3px solid #575fea;outline-offset:5px}.feature-banner :where(a,button):focus-visible{outline-color:#fff}.page-hero :where(a,button):focus-visible,.article-head :where(a,button):focus-visible,.dark :where(a,button):focus-visible{outline-color:#575fea}
@media(max-width:1100px){.hero{gap:30px;padding-top:44px}.hero h1{font-size:3.1rem}.hero .eyebrow{font-size:8px}.hero>div>p{font-size:15px}.hero-actions{gap:15px}.ticker{margin-inline:24px}.topics{grid-template-columns:repeat(2,minmax(0,1fr))}.side-cards .card>a{grid-template-columns:36% minmax(0,1fr)}.side-cards .art-label{display:none}.side-cards .card h3{font-size:1.05rem}.banner-copy{padding:36px}}
@media(max-width:850px){.site-header{height:76px;padding-inline:24px}.menu{display:flex;align-items:center;justify-content:center;gap:12px;padding:0 14px;min-width:88px;height:44px;border:1px solid #d7d6ce;border-radius:999px;background:transparent;font-size:11px;z-index:52}.burger{width:20px;height:14px;position:relative;display:block}.burger>span{position:absolute;left:0;width:20px;height:1.5px;background:var(--ink);top:3px;transition:transform .22s,top .22s}.burger>span:last-child{top:10px;width:15px;left:auto;right:0}.menu[aria-expanded="true"] .burger>span{top:6px;transform:rotate(45deg)}.menu[aria-expanded="true"] .burger>span:last-child{width:20px;transform:rotate(-45deg)}#site-nav{display:flex;position:fixed;top:88px;right:18px;left:18px;max-height:calc(100dvh - 108px);overflow-y:auto;padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:24px;flex-direction:column;align-items:stretch;gap:0;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);transition:opacity .2s,transform .2s,visibility .2s;box-shadow:0 18px 50px #11131a18}#site-nav.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}#site-nav>a{justify-content:space-between;padding:17px 0;border-bottom:1px solid var(--line);color:var(--ink);font-size:24px;letter-spacing:-.04em}#site-nav>.nav-cta{margin:24px 0 0;padding:16px 20px;font-size:13px;letter-spacing:0;background:var(--lime);color:var(--ink);border:0}#site-nav>.nav-cta:hover{background:#b6eb2f}.mobile-nav-heading{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.13em;color:var(--muted);margin-bottom:12px}.mobile-nav-arrow{display:flex}.mobile-nav-note{display:block;font-size:12px;line-height:1.6;color:var(--muted);margin-top:24px}.menu-backdrop{display:block;position:fixed;inset:76px 0 0;z-index:45;background:#191b2055;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}.menu-open .menu-backdrop{opacity:1;visibility:visible}body.menu-open{overflow:hidden}.hero{grid-template-columns:1fr 1fr;gap:24px;padding-top:38px}.hero h1{font-size:2.65rem}.hero .eyebrow{line-height:1.5}.hero>div>p{font-size:14px}.hero-visual>img{aspect-ratio:.85}.hero-caption{padding:16px}.hero-caption strong{font-size:11px}.hero-caption small{font-size:8px}.hero-footnote{font-size:9px;line-height:1.5}.hero-actions .text-link{font-size:11px}.ticker{justify-content:center;gap:24px}.ticker-intro{display:none!important}.lead-grid{grid-template-columns:1fr}.side-cards{grid-template-columns:1fr 1fr}.side-cards .card>a{display:block}.side-cards .card-art{aspect-ratio:1.8;height:auto}.side-cards .art-label{display:inline-flex}.card-featured .card-art{aspect-ratio:2.15}.banner-copy{padding:32px}.feature-banner{grid-template-columns:1.1fr .9fr}.banner-copy h2{font-size:2.2rem}.banner-copy p{font-size:12px}.section{padding-block:56px}.article-layout{padding-top:42px;gap:28px}.toc{position:static}.article-head{padding-top:42px}.section.dark{padding-top:56px}}
@media(max-width:580px){.site-header{padding-inline:18px}.brand-caption{display:none}.brand{font-size:11px}.brand-logo{width:36px;height:36px}.hero{grid-template-columns:1fr;padding:34px 20px 30px;gap:28px}.hero .eyebrow{font-size:8px}.hero h1{font-size:clamp(2.65rem,10.7vw,3.7rem);margin:24px 0 18px;line-height:1.04}.hero>div>p{font-size:15px;max-width:340px}.hero-actions{gap:18px;margin-top:23px}.hero-actions .button{padding:14px 18px;font-size:12px}.hero-actions .text-link{font-size:10px}.hero-footnote{margin-top:20px;font-size:10px}.hero-visual{border-radius:20px}.hero-visual>img{aspect-ratio:1.55}.hero-caption{padding:15px 17px}.hero-caption strong{font-size:12px}.hero-caption small{font-size:8px}.ticker{margin-inline:20px;padding:18px 0;gap:16px 22px;font-size:9px}.ticker>span{gap:6px}.ticker .icon{width:14px;height:14px}.section{padding:42px 20px}.section-head{gap:18px;margin-bottom:23px;align-items:flex-start}.section-head h2{font-size:1.9rem;max-width:300px}.section-head>a{font-size:11px}.section-head span{font-size:9px}.cards,.side-cards,.related .cards{grid-template-columns:1fr}.card,.card-featured{border-radius:17px}.card-copy,.card-featured .card-copy,.side-cards .card-copy{padding:22px}.card h3,.side-cards .card h3,.card-featured h3{font-size:1.3rem}.card-art,.card-featured .card-art,.side-cards .card-art{aspect-ratio:1.8;border:0}.side-cards .card p{display:block}.banner-wrap{padding-inline:20px}.feature-banner{grid-template-columns:1fr;border-radius:20px}.banner-copy{padding:30px 26px}.banner-copy h2{font-size:2.3rem}.banner-copy p{font-size:13px}.banner-art{height:200px}.banner-art img{object-position:center 53%}.banner-search{margin-top:34px}.section.dark{padding:42px 20px 0}.topics{grid-template-columns:1fr;gap:10px}.topics a{padding:18px;grid-template-columns:42px minmax(0,1fr) 18px}.topics small{font-size:11px}.topic-icon{width:42px;height:42px}.section-head>p{margin:0;font-size:12px}.page-hero,.article-head{padding:38px 20px}.page-hero h1,.page-hero.compact h1,.article-head h1{font-size:2.5rem;line-height:1.08}.article-head .meta{font-size:9px}.updated{display:block;margin-left:0}.article-head>p{font-size:1rem}.article-body .lead{font-size:1.2rem}.article-layout{padding-inline:20px}.article-body h2{font-size:1.7rem}.article-body section{margin-block:48px}.article-cover{margin-block:26px}.filters button{font-size:11px}.prose-page{padding:46px 20px;font-size:1.1rem}footer{border-radius:20px 20px 0 0;padding:42px 24px 28px}footer .footer-brand{font-size:1.2rem}.footer-links{flex-direction:row;justify-content:flex-start}.footer-links a{padding-block:7px}.menu-label{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Compact outlined brand: keep the intrinsic ratio to prevent layout shift. */
.brand-wordmark{display:block;width:123px;height:auto;aspect-ratio:400/141;flex:none}.footer-wordmark{display:block;width:157.5px;height:auto;aspect-ratio:400/141}.author-logo{border-radius:50%}
@media(max-width:580px){.brand-wordmark{width:106.5px}.footer-wordmark{width:139.5px}}


.site-header{height:72px}footer{padding-top:42px;padding-bottom:28px}
@media(max-width:850px){.site-header{height:64px}#site-nav{top:76px;max-height:calc(100dvh - 96px)}.menu-backdrop{top:64px}}
@media(max-width:580px){footer{padding-top:32px;padding-bottom:21px}}
/* Keep the expanded article navigation accessible on short desktop screens. */
@media(min-width:851px){.toc{max-height:calc(100dvh - 139px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}}

/* Traffic hero: real text and a responsive decorative illustration. */
.hero.hero-traffic{position:relative;isolation:isolate;overflow:hidden;width:calc(100% - 48px);max-width:1280px;margin:40px auto 32px;padding:0;gap:0;border-radius:24px;background:#191b20;color:#f7f6f2;grid-template-columns:1fr 1fr;min-height:480px}
.hero-traffic .hero-copy{position:relative;z-index:2;padding:52px 0 52px 48px}
.hero-traffic .eyebrow{color:#f0f0f5;font-size:10px;letter-spacing:.14em}
.hero-traffic .status-dot{background:var(--lime);box-shadow:none}
.hero-traffic h1{font-size:clamp(2.4rem,4.1vw,3.7rem);line-height:1.08;letter-spacing:-.06em;margin:28px 0 22px}
.hero-traffic h1 em{color:#b1a3ff;letter-spacing:-.06em}
.hero.hero-traffic .hero-copy>p{color:#c7c7d0;max-width:430px;font-size:16px;line-height:1.7}
.hero-traffic .button{background:var(--lime);color:#191b20}
.hero-traffic .button:hover{background:#e0ff92;color:#191b20}
.hero-traffic :where(a,button):focus-visible{outline-color:#fff}
.hero-traffic-art{position:relative;min-width:0;align-self:stretch;display:flex;align-items:center}
.hero-traffic-art:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#191b20 0%,transparent 22%),linear-gradient(0deg,#191b20 0%,transparent 12%,transparent 88%,#191b20 100%)}
.hero-traffic-art img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain}
@media(min-width:701px) and (max-width:1000px){.hero-traffic .hero-copy{padding:36px 0 36px 28px}.hero-traffic h1{font-size:clamp(2rem,4.1vw,2.7rem)}.hero.hero-traffic{min-height:400px}.hero.hero-traffic .hero-copy>p{font-size:14px}}
@media(max-width:700px){.hero.hero-traffic{width:calc(100% - 32px);margin:24px auto;grid-template-columns:minmax(0,1fr);min-height:0;border-radius:20px}.hero-traffic .hero-copy{padding:32px 24px 0}.hero-traffic h1{font-size:clamp(1.95rem,7.7vw,3.2rem);margin:24px 0 18px}.hero.hero-traffic .hero-copy>p{font-size:14px;max-width:460px}.hero-traffic .hero-actions{margin-top:22px}.hero-traffic-art{width:100%;max-width:460px;margin:0 auto}.hero-traffic-art:after{background:linear-gradient(180deg,#191b20 0%,transparent 18%,transparent 87%,#191b20 100%)}.hero-traffic .button{padding:15px 20px}.hero-traffic .eyebrow{font-size:9px}}
@media(max-width:360px){.hero-traffic .hero-copy{padding:28px 18px 0}.hero-traffic h1{font-size:1.8rem}}