:root{--bg:#ffffff;--fg:#0e1116;--accent:#334155;--muted:#64748b}
*{box-sizing:border-box}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6}
a{color:var(--accent);text-decoration:none}
.sph-nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center;max-width:1000px;margin:0 auto;padding:16px 24px}
.sph-nav .sph-brand{font-weight:700}
.sph-site-header{border-bottom:1px solid #eee}
.sph-site-main{max-width:1120px;margin:0 auto;padding:64px 24px}
h1{font-family:"Helvetica Neue",Helvetica,Arial,"Segoe UI",Roboto,ui-sans-serif,sans-serif;font-size:clamp(32px,3.8vw,46px);line-height:1.2}
h2{font-size:24px;margin-top:34px}
.sph-article h3,.sph-faq-q{font-size:18px;margin-top:20px}
p{max-width:60ch}
.sph-hero{display:flex;gap:24px;align-items:center;padding:24px 0 8px;flex-wrap:wrap}
.sph-hero-img{max-width:340px;width:100%;border-radius:14px}
.sph-hero .sph-lead{font-size:20px;color:var(--muted)}
.sph-hero--center{flex-direction:column;text-align:center;align-items:center}
.sph-hero-banner{width:100%;max-width:100%;border-radius:14px;margin-top:16px;aspect-ratio:16/6;object-fit:cover}
.sph-article-toc{border:1px solid #e5e7eb;border-radius:12px;padding:14px 18px;margin:0 0 24px;background:#f8fafc}
.sph-article-toc ol{margin:0;padding-left:20px}
.sph-article-toc a{color:var(--accent)}
.sph-article-image img{max-width:100%;border-radius:12px;margin:8px 0 20px}
.sph-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin-top:24px}
.sph-card{display:block;border:1px solid #eee;border-radius:4px;padding:18px;color:inherit;transition:box-shadow .15s}
.sph-card img{max-width:100%;border-radius:8px;margin-bottom:10px}
.sph-card:hover{box-shadow:0 6px 20px rgba(0,0,0,.08)}
.sph-card h3{margin:0 0 8px}
.sph-contact-email{font-size:18px}
.sph-note{color:var(--muted);font-size:14px}
table{border-collapse:collapse;width:100%;margin:16px 0}
th,td{border:1px solid #e5e7eb;padding:8px 12px;text-align:left}
th{background:#f8fafc}
blockquote{border-left:4px solid var(--accent);margin:24px 0;padding:12px 18px;background:#f6f9ff;font-weight:600}
blockquote p{margin:0}
ul{padding-left:20px}
.sph-site-footer{border-top:1px solid #eee;text-align:center;color:var(--muted);padding:28px;font-size:13px}
.sph-footer-nav{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:10px}
.sph-cookie-notice{position:fixed;left:0;right:0;bottom:0;z-index:900;display:flex;gap:14px;align-items:center;justify-content:center;flex-wrap:wrap;padding:12px 20px;background:var(--fg);color:var(--bg);font-size:13px}
.sph-cookie-notice[hidden]{display:none}
.sph-cookie-notice .sph-cookie-text{margin:0;max-width:70ch}
.sph-cookie-notice a{color:var(--bg);text-decoration:underline}
.sph-cookie-ok{border:0;cursor:pointer;background:var(--accent);color:#fff;padding:8px 16px;border-radius:8px;font-weight:600}
:root{--surface:#f5f6f7;--border:#e0e3e6;--grad:linear-gradient(135deg,#e0592b,#f0895f);--invert-bg:#0b0d10;--invert-fg:#f0f2f4}
body{font-size:15.5px}
h1,h2,h3,h4{font-weight:800;letter-spacing:-0.02em}
h1{line-height:1.12}
.sph-site-main p{margin:0 0 0.95em}
.sph-site-main ul,.sph-site-main ol{margin:0 0 0.95em}
.sph-site-main li{margin:.4em 0}
.sph-site-main h2{margin-top:1.7em}
.sph-site-main h3{margin-top:1.25em}
.sph-page-section{margin:64px 0}
.sph-page-section--hero,.sph-hero{margin-top:8px}
blockquote{margin:1.6em 0;padding:.25em 0 .25em 1.1em;border-left:3px solid var(--accent);font-size:1.08em;line-height:1.5}
.sph-rhythm-band{background:var(--surface);padding:64px clamp(20px,4vw,40px);border-radius:24px;margin:64px 0}
.sph-rhythm-band > .sph-page-section:first-child,.sph-rhythm-band > .sph-grid:first-child{margin-top:0}
.sph-rhythm-band > :last-child{margin-bottom:0}
.sph-faq-item{border-bottom:1px solid var(--border);padding:14px 0}
.sph-faq-q{font-weight:700;margin:0 0 4px}
.sph-faq--accordion .sph-faq-row{border-bottom:1px solid var(--border);padding:4px 0}
.sph-faq--accordion summary{cursor:pointer;font-weight:700;padding:12px 0;list-style:none}
.sph-faq--accordion summary::-webkit-details-marker{display:none}
.sph-faq--accordion summary::after{content:"+";float:right;color:var(--accent);font-weight:400}
.sph-faq--accordion details[open] summary::after{content:"\2013"}
.sph-faq--accordion details p{padding-bottom:12px;margin:0;color:var(--muted)}
.sph-faq--numbered .sph-faq-item{display:flex;gap:16px;align-items:flex-start}
.sph-faq--numbered .sph-faq-n{font-weight:800;color:var(--accent);opacity:.5;font-size:22px;line-height:1.2}
.sph-faq--split .sph-faq-item{display:grid;grid-template-columns:1fr 1.5fr;gap:22px}
.sph-faq--split .sph-faq-q,.sph-faq--split .sph-faq-a{margin:0}
@media(max-width:640px){.sph-faq--split .sph-faq-item{grid-template-columns:1fr;gap:6px}}
.sph-related-guides h2,.sph-newsletter h2{margin-top:0}
.sph-newsletter .sph-newsletter-inner{max-width:640px}
.sph-newsletter .sph-newsletter-inner p{margin:0 0 16px;color:var(--muted)}
.sph-card-media{margin:0;overflow:hidden;background:var(--surface)}
.sph-card-media img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}
.sph-card .sph-card-body{padding:16px 18px}
.sph-card .sph-card-body h3{margin:0 0 6px}
.sph-card .sph-card-body p{margin:0;color:var(--muted);font-size:14px}
.sph-card-arrow,.sph-card-more{display:inline-block;margin-top:10px;color:var(--accent);font-weight:700}
.sph-card--editorial{background:var(--surface);border:1px solid var(--border)}
.sph-card--magazine{background:var(--surface);border:1px solid var(--border);overflow:hidden;transition:box-shadow .15s,transform .15s}
.sph-card--magazine:hover{box-shadow:0 16px 40px rgba(0,0,0,.12);transform:translateY(-2px)}
.sph-card--image{position:relative;min-height:210px;overflow:hidden;display:flex;align-items:flex-end;color:#fff;border:0}
.sph-card--image .sph-card-media{position:absolute;inset:0}.sph-card--image .sph-card-media img{height:100%;aspect-ratio:auto}
.sph-card--image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(0,0,0,.75))}
.sph-card--image .sph-card-overlay{position:relative;z-index:1;padding:18px}.sph-card--image .sph-card-overlay h3{color:#fff;margin:0}
.sph-card--feature{display:flex;gap:16px;background:var(--surface);border:1px solid var(--border);padding:18px;align-items:flex-start}
.sph-card--feature .sph-card-num{font-size:32px;font-weight:800;color:var(--accent);line-height:1;opacity:.55;flex:0 0 auto}
.sph-grid--list{grid-template-columns:1fr;gap:14px}
.sph-card--horizontal{display:grid;grid-template-columns:160px 1fr;gap:16px;align-items:center;border:1px solid var(--border);overflow:hidden;background:var(--surface)}
.sph-card--horizontal .sph-card-thumb{margin:0;height:100%}.sph-card--horizontal .sph-card-thumb img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.sph-card--minimal{background:transparent;border:0;border-top:2px solid var(--fg);border-radius:0}.sph-card--minimal .sph-card-body{padding:14px 0}
.sph-card--outline{background:transparent;border:1.5px solid var(--border)}
.sph-card--premium{background:var(--surface);border:1px solid var(--border);box-shadow:0 8px 26px rgba(0,0,0,.07)}
.sph-card--story{position:relative;background:var(--surface);border:1px solid var(--border);overflow:hidden}
.sph-card--story .sph-card-bar{position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad)}.sph-card--story .sph-card-body{padding-left:22px}
.sph-card--icon{background:var(--surface);border:1px solid var(--border);padding:18px}
.sph-card--icon .sph-card-ico{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:11px;background:var(--accent);color:#fff;margin-bottom:12px;font-size:18px}
.sph-section-block--invert{background:var(--invert-bg);color:var(--invert-fg);border-radius:22px;padding:38px 30px;margin:24px 0}
.sph-section-block--invert h1,.sph-section-block--invert h2,.sph-section-block--invert h3{color:var(--invert-fg)}
.sph-section-block--invert p{color:var(--invert-fg);opacity:.86}
.sph-section-block--tint{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:34px 30px;margin:24px 0}
.sph-section-block--accent{background:var(--grad);color:#fff;border-radius:22px;padding:38px 30px;margin:24px 0}
.sph-section-block--accent h1,.sph-section-block--accent h2,.sph-section-block--accent p{color:#fff}
.sph-section-block--accent .sph-cta-link{background:#fff;color:var(--fg)}
/* PR-090 premium renderer-only sections */
.sph-featured-guide .sph-featured-inner{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:28px;align-items:center}
.sph-featured-guide .sph-featured-media img{width:100%;height:100%;max-height:340px;object-fit:cover;border-radius:18px}
.sph-featured-guide .sph-featured-kicker{display:inline-block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.sph-featured-guide .sph-featured-copy h2{margin:0 0 .4em;font-size:1.7rem;line-height:1.15}
.sph-featured-guide .sph-featured-copy h2 a{color:inherit;text-decoration:none}
.sph-featured-guide .sph-featured-copy h2 a:hover{text-decoration:underline}
@media (max-width:720px){.sph-featured-guide .sph-featured-inner{grid-template-columns:1fr}}
.sph-key-takeaways .sph-takeaways-list{list-style:none;margin:.6em 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px 26px}
.sph-key-takeaways .sph-takeaways-list li{position:relative;padding-left:26px;line-height:1.5}
.sph-key-takeaways .sph-takeaways-list li::before{content:"";position:absolute;left:0;top:.45em;width:12px;height:12px;border-radius:50%;background:var(--grad)}
.sph-pull-quote .sph-editorial-quote{margin:0;border:0}
.sph-pull-quote .sph-editorial-quote p{margin:0;font-size:1.5rem;line-height:1.4;font-weight:600;font-style:italic;letter-spacing:-.01em}
@media(max-width:640px){.sph-card--horizontal{grid-template-columns:100px 1fr}}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
img{max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}
::selection{background:var(--accent);color:#fff}
.sph-skip-link{position:absolute;left:8px;top:-56px;z-index:1000;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 8px 8px;transition:top .15s}
.sph-skip-link:focus{top:0}
.sph-nav a{padding:4px 2px;border-bottom:2px solid transparent}
.sph-nav a:hover{color:var(--accent)}
.sph-nav a[aria-current=page],.sph-nav a.sph-is-active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}
.sph-cta-link{display:inline-block;background:var(--accent);color:#fff;padding:10px 18px;border-radius:8px;font-weight:600}
.sph-cta-link:hover{opacity:.92}
.sph-lead-form{display:grid;gap:14px;max-width:520px;margin:28px 0;padding:22px;border:1px solid #e5e7eb;border-radius:14px;background:#fff}
.sph-lead-form .sph-field{display:grid;gap:6px}
.sph-lead-form label{font-size:14px;font-weight:600}
.sph-lead-form input,.sph-lead-form textarea{width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff}
.sph-lead-form input:focus,.sph-lead-form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.sph-lead-form button{justify-self:start;border:0;cursor:pointer}
.sph-lead-form .sph-form-note{font-size:12px;color:var(--muted);margin:0}
.sph-lead-form .sph-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.sph-article-links{display:flex;gap:16px;flex-wrap:wrap;margin-top:32px;padding-top:20px;border-top:1px solid #eee}
.sph-article-links a{padding:6px 14px;border:1px solid #e5e7eb;border-radius:999px;font-size:14px}
.sph-article-links a:hover{border-color:var(--accent)}
figure.sph-page-cover,figure.sph-trust-media,figure.sph-process-media,figure.sph-hub-cover,figure.sph-resources-cover{margin:0 0 20px}
figure.sph-page-cover img,figure.sph-trust-media img,figure.sph-process-media img,figure.sph-hub-cover img,figure.sph-resources-cover img{max-width:100%;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;display:block}
pre{overflow-x:auto;background:#0f172a;color:#e2e8f0;padding:16px;border-radius:10px;font-size:14px;line-height:1.6}
pre code{background:none;padding:0;color:inherit}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;background:#f1f5f9;padding:.12em .38em;border-radius:5px}
.sph-notfound{text-align:center;padding:64px 24px}
.sph-notfound h1{font-size:72px;margin:0 0 8px}
.sph-page-section{margin:28px 0}
.sph-continue-cta{margin-top:28px}
.sph-breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 18px;font-size:13px;color:var(--muted)}
.sph-breadcrumb li{display:flex;align-items:center;gap:8px}
.sph-breadcrumb li:not(:last-child)::after{content:"/";color:var(--muted)}
.sph-breadcrumb a{color:var(--muted)}
.sph-breadcrumb a:hover{color:var(--accent)}
body{-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility;overflow-wrap:break-word}
h1,h2,h3,h4{overflow-wrap:break-word;text-wrap:balance}
.sph-site-main{overflow-wrap:break-word;hyphens:auto;padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
.sph-nav{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}
.sph-site-header{position:sticky;top:0;z-index:50;background:var(--bg)}
.sph-nav a,.sph-footer-nav a{min-height:40px;display:inline-flex;align-items:center}
ul,ol{padding-left:22px}
li+li{margin-top:6px}
pre,table{tab-size:2}
*{scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}
::-webkit-scrollbar{height:10px;width:10px}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:8px}
@media(max-width:640px){.sph-site-main{padding-top:24px}h1{font-size:28px}.sph-nav{gap:12px}table{display:block;overflow-x:auto}}
.sph-hero{align-items:center}
.sph-hero .sph-hero-kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.sph-hero .sph-hero-copy{max-width:560px}
.sph-hero .sph-hero-copy h1{font-size:clamp(30px,4vw,52px);line-height:1.08;margin:0 0 14px;letter-spacing:-.01em}
.sph-hero .sph-hero-copy .sph-lead{font-size:19px;line-height:1.55;color:var(--muted);margin:0;max-width:56ch}
.sph-hero .sph-hero-media{margin:0;border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.14)}
.sph-hero .sph-hero-media img{display:block;width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.sph-hero--split-left,.sph-hero--split-right{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;padding:34px 0}
.sph-hero--center{display:flex;flex-direction:column;align-items:center;text-align:center;gap:26px;padding:38px 0}
.sph-hero--center .sph-hero-copy{max-width:720px}.sph-hero--center .sph-hero-copy .sph-lead{margin-inline:auto}
.sph-hero--center .sph-hero-media{width:100%}.sph-hero--center .sph-hero-media img{aspect-ratio:16/6}
.sph-hero--magazine{position:relative;padding:0;border-radius:20px;overflow:hidden;margin:8px 0 14px}
.sph-hero--magazine .sph-hero-media{border-radius:0;box-shadow:none}.sph-hero--magazine .sph-hero-media img{aspect-ratio:16/8}
.sph-hero--magazine .sph-hero-copy--float{position:absolute;left:28px;right:28px;bottom:24px;max-width:660px;background:rgba(15,23,42,.62);backdrop-filter:blur(6px);color:#fff;padding:22px 26px;border-radius:14px}
.sph-hero--magazine .sph-hero-copy--float h1,.sph-hero--magazine .sph-hero-copy--float .sph-lead,.sph-hero--magazine .sph-hero-copy--float .sph-hero-kicker{color:#fff}
.sph-hero--featured{display:grid;grid-template-columns:1.25fr .85fr;gap:42px;align-items:center;padding:30px 0}
.sph-hero--featured .sph-hero-copy--lg h1{font-size:clamp(34px,5.2vw,64px)}.sph-hero--featured .sph-hero-media img{aspect-ratio:4/5}
.sph-hero--overlay{position:relative;border-radius:20px;overflow:hidden;padding:0;min-height:420px;display:flex;align-items:flex-end;margin:8px 0 14px}
.sph-hero--overlay .sph-hero-media{position:absolute;inset:0;border-radius:0;box-shadow:none}
.sph-hero--overlay .sph-hero-media img{width:100%;height:100%;aspect-ratio:auto}
.sph-hero--overlay::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.04),rgba(0,0,0,.74))}
.sph-hero--overlay .sph-hero-overlay-text{position:relative;z-index:1;color:#fff;padding:34px;max-width:700px}
.sph-hero--overlay .sph-hero-overlay-text h1,.sph-hero--overlay .sph-hero-overlay-text .sph-lead{color:#fff}
.sph-hero--card{position:relative;padding:0 0 40px}.sph-hero--card .sph-hero-media img{aspect-ratio:16/7}
.sph-hero--card .sph-hero-float-card{position:relative;margin:-64px 24px 0;max-width:660px;background:var(--bg);border:1px solid rgba(0,0,0,.08);box-shadow:0 18px 46px rgba(0,0,0,.14);border-radius:16px;padding:26px 30px}
@media(max-width:720px){.sph-hero--split-left,.sph-hero--split-right,.sph-hero--featured{grid-template-columns:1fr;gap:22px}.sph-hero--overlay{min-height:320px}.sph-hero--card .sph-hero-float-card{margin:-40px 12px 0}.sph-hero--magazine .sph-hero-copy--float{position:static;background:var(--fg);border-radius:0 0 14px 14px}}
@media print{.sph-nav,.sph-site-footer,.sph-skip-link,.sph-article-links,.sph-breadcrumb,.sph-cta-link,.sph-continue-cta{display:none!important}.sph-site-header{position:static;border:0}body{color:#000;background:#fff}a{color:#000;text-decoration:underline}.sph-site-main{max-width:none}}
.sph-hero--banner{background:var(--grad);color:#fff;border-radius:24px;padding:clamp(32px,6vw,72px)}.sph-hero--banner h1,.sph-hero--banner .sph-hero-kicker,.sph-hero--banner .sph-lead{color:#fff}.sph-hero--banner .sph-hero-media,.sph-hero--banner .sph-hero-img{display:none}.sph-hero--minimal{text-align:center}.sph-hero--minimal .sph-hero-media,.sph-hero--minimal .sph-hero-img{display:none}.sph-hero--minimal .sph-hero-copy{max-width:820px;margin-inline:auto}.sph-hero--boxed{border:1px solid var(--border);background:var(--surface);border-radius:24px;padding:clamp(24px,4vw,48px)}@media(min-width:860px){.sph-hero--wide{display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center}}.sph-hero--kicker .sph-hero-kicker{font-size:clamp(14px,2vw,20px);letter-spacing:.15em;text-transform:uppercase;color:var(--accent);font-weight:700}
.sph-site-main--longread>*{max-width:720px;margin-inline:auto}.sph-site-main--longread p{line-height:1.85}