:root{--ink:#603f55;--paper:#fbf5ee;--accent:#a6b49a;--surface:#fff;--body-font:Palatino Linotype, Book Antiqua, serif;--heading-font:Georgia, serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{background:var(--paper);color:var(--ink);font-family:var(--body-font);margin:0;font-size:18px;line-height:1.72}h1,h2,h3{font-family:var(--heading-font);letter-spacing:-.025em;font-weight:500;line-height:1.15}h1{margin:14px 0 24px;font-size:clamp(38px,5.5vw,73px)}h2{margin:0 0 20px;font-size:clamp(29px,3.2vw,42px)}h3{margin:8px 0 15px;font-size:27px}p{margin:0 0 22px}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a.button{cursor:pointer}.wrap{max-width:1180px;margin:0 auto;padding:0 28px}.section{margin-top:72px;margin-bottom:72px}.skip{background:var(--ink);color:#fff;z-index:100;padding:14px;position:fixed;top:-100px;left:10px}.skip:focus{top:10px}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}header{background:var(--surface);border-bottom:1px solid color-mix(in srgb,var(--ink) 18%,transparent)}.header-inner{justify-content:space-between;align-items:center;gap:20px;max-width:1260px;margin:auto;padding:22px 28px;display:flex}.wordmark{font-family:var(--heading-font);align-items:center;gap:12px;font-size:27px;font-weight:600;line-height:1.15;text-decoration:none;display:flex}.wordmark small{font-family:var(--body-font);letter-spacing:.01em;margin-top:7px;font-size:12px;font-weight:400;display:block}.brand-mark{flex:none;width:45px;height:45px}nav{flex-wrap:wrap;gap:24px;display:flex}nav a{align-items:center;min-height:44px;font-size:16px;text-decoration:none;display:flex}.hero{grid-template-columns:1.13fr 1fr;align-items:center;gap:45px;padding-top:66px;padding-bottom:64px;display:grid}.hero-art{width:100%;color:var(--ink);height:auto;max-height:470px}.hero .dek{font-size:23px;line-height:1.55}.eyebrow{text-transform:uppercase;letter-spacing:.09em;margin:0 0 12px;font-size:13px;font-weight:700}.actions{flex-wrap:wrap;align-items:center;gap:18px;display:flex}.button{background:var(--ink);min-height:50px;color:var(--surface);border:1px solid var(--ink);border-radius:5px;justify-content:center;align-items:center;padding:12px 22px;font-size:17px;font-weight:600;text-decoration:none;display:inline-flex}.button.light{background:var(--surface);color:var(--ink)}.text-link{font-size:17px;font-weight:600}.intro-band{background:var(--ink);color:var(--surface);padding:29px 0}.intro-grid{grid-template-columns:1fr 2fr;align-items:center;gap:35px;display:grid}.intro-grid strong{font-family:var(--heading-font);font-size:29px;line-height:1.25}.intro-grid p{margin:0}.section-heading{justify-content:space-between;align-items:baseline;gap:25px;margin-bottom:26px;display:flex}.section-heading a{font-size:16px}.ranked-list{gap:24px;display:grid}.review-card{background:var(--surface);border:1px solid color-mix(in srgb,var(--ink) 23%,transparent);border-radius:8px;grid-template-columns:90px 1fr;padding:35px;display:grid}.review-card.featured{border:2px solid var(--ink);box-shadow:7px 7px 0 var(--accent)}.card-number{font-family:var(--heading-font);color:var(--ink);opacity:.55;font-size:50px;line-height:1}.review-card h3 a{text-decoration:none}.review-card p{font-size:17px}.review-card dl{grid-template-columns:1.6fr 1fr;gap:20px;margin:24px 0;font-size:16px;display:grid}.review-card dt{text-transform:uppercase;letter-spacing:.08em;opacity:.7;font-size:12px}.review-card dd{margin:5px 0}.product-banner{border:1px solid var(--ink);background:var(--accent);color:var(--ink);border-radius:10px;grid-template-columns:1.5fr 1fr;gap:28px;padding:32px;display:grid}.product-banner h2{margin-bottom:14px;font-size:27px}.product-banner p{margin:0;font-size:17px}.product-banner .actions{align-content:center}.guide-grid{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.guide-tile{border-top:3px solid var(--ink);background:var(--surface);padding:27px;text-decoration:none}.guide-tile span{font-size:13px}.guide-tile h3{font-size:26px}.guide-tile p,.guide-tile b{font-size:16px}.comparison-links{grid-template-columns:1fr 1fr;gap:12px;display:grid}.comparison-links a{border-bottom:1px solid var(--ink);padding:18px 0;text-decoration:none}.article-wrap{max-width:880px;margin:0 auto;padding:45px 28px 80px}.article-heading{margin:36px 0 38px}.article-heading h1{font-size:clamp(38px,5vw,59px)}.article-heading .dek{font-size:23px;line-height:1.5}.crumbs{align-items:center;gap:12px}.crumbs a{text-transform:capitalize;font-size:15px}.article-body>p{font-size:20px;line-height:1.8}.article-body .product-banner{margin:34px -40px 45px}.article-body section{margin-top:44px}.article-body h2{font-size:33px}.article-body .contents{background:var(--surface);border-left:4px solid var(--accent);gap:8px;margin:36px 0;padding:26px;display:grid}.contents a{min-height:36px;font-size:17px}.article-body .review-card{grid-template-columns:60px 1fr}.context-link{border-left:3px solid var(--accent);padding-left:20px;font-size:17px}.sources{background:var(--surface);border:1px solid color-mix(in srgb,var(--ink) 20%,transparent);padding:26px}.sources p,.sources li{font-size:16px}.sources li{overflow-wrap:anywhere;margin:13px 0}.related{margin-top:44px}.related a{border-bottom:1px solid var(--accent);padding:13px 0;font-size:17px;display:block}.search-controls{grid-template-columns:1.5fr 1fr;gap:22px;margin:35px 0 20px;display:grid}.search-controls label{gap:10px;font-size:16px;display:grid}input,select,textarea{border:1px solid var(--ink);background:var(--surface);width:100%;min-height:50px;color:var(--ink);border-radius:4px;padding:13px}.directory-grid{grid-template-columns:repeat(2,1fr);gap:24px;display:grid}.directory-grid article{background:var(--surface);border-bottom:2px solid var(--accent);padding:28px}.directory-grid h2{font-size:27px}.directory-grid h2 a{text-decoration:none}.directory-grid p{font-size:17px}footer{background:var(--ink);color:var(--surface);margin-top:65px;padding:45px 0}.footer-inner{max-width:1160px;margin:auto;padding:0 28px}.footer-inner p{max-width:950px;margin-top:20px;font-size:14px;line-height:1.8}.footer-inner nav{margin:28px 0}.footer-inner small{font-size:13px}.floating-prompt{background:var(--surface);border:2px solid var(--ink);z-index:20;border-radius:10px;max-width:340px;padding:28px;position:fixed;bottom:22px;right:22px;box-shadow:0 10px 40px #0002}.floating-prompt p{margin:12px 0 20px;font-size:16px}.dismiss{width:44px;height:44px;color:inherit;cursor:pointer;background:0 0;border:0;font-size:29px;position:absolute;top:3px;right:6px}.floating-prompt strong{padding-right:16px;display:block}dialog{border:1px solid var(--ink);background:var(--surface);color:var(--ink);width:calc(100% - 36px);max-width:590px;font:inherit;border-radius:12px;padding:45px;position:fixed}dialog::backdrop{background:#0008}dialog h2{font-size:34px}.later{background:0 0;border:0;margin-top:16px;padding:15px 0;font-size:16px;text-decoration:underline}.page-intro{max-width:780px}.prose{max-width:800px}.prose h2{margin-top:40px;font-size:30px}.contact{max-width:760px}.not-found{padding-top:80px;padding-bottom:100px}.all-links{gap:12px;display:grid}.all-links a{background:var(--surface);border-bottom:2px solid var(--accent);padding:24px;text-decoration:none;display:block}.all-links h2{margin:0 0 14px;font-size:28px}.all-links p{margin:0;font-size:17px}@media (max-width:780px){.header-inner{padding:18px 20px;display:block}.wordmark{font-size:24px}.wordmark small{font-size:11px}header nav{gap:24px;margin-top:20px}header nav a{font-size:16px}.wrap{padding:0 20px}.hero{grid-template-columns:1fr;gap:20px;padding-top:42px;padding-bottom:35px}.hero-art{max-height:260px}.hero .dek{font-size:21px}.hero h1{font-size:43px}.intro-grid{grid-template-columns:1fr;gap:18px}.section{margin-top:48px;margin-bottom:48px}.section-heading{display:block}.review-card{grid-template-columns:50px 1fr;padding:25px 20px}.card-number{font-size:34px}.review-card h3{font-size:26px}.review-card dl{grid-template-columns:1fr;gap:13px}.review-card .actions{gap:12px;display:grid}.review-card .button{padding:12px 15px;font-size:16px}.product-banner{grid-template-columns:1fr;padding:25px}.guide-grid,.comparison-links,.directory-grid,.search-controls{grid-template-columns:1fr}.guide-tile{padding:25px}.article-wrap{padding:30px 22px 55px}.article-heading h1{font-size:38px}.article-body>p{font-size:19px}.article-body .product-banner{margin:30px 0 38px}.article-body h2{font-size:29px}.article-body .review-card{grid-template-columns:40px 1fr;padding:22px 15px}.floating-prompt{max-width:300px;padding:24px;bottom:12px;right:12px}.floating-prompt .button{min-height:48px}dialog{padding:35px 24px}.section-heading h2{margin-bottom:16px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.hero-copy h1{font-style:italic}.hero-art{background:var(--surface);border-radius:48% 48% 6px 6px}.intro-band{background:var(--surface);color:var(--ink);border-block:1px solid var(--accent)}.review-card{border-radius:45px 4px 4px}.review-card.featured{box-shadow:none;background:var(--paper)}.guide-tile{border-top:1px solid var(--accent);background:0 0}.product-banner{background:var(--surface);border-top:5px solid var(--accent)}.article-heading{text-align:center}.wordmark{font-style:italic}.card-number{opacity:1;color:var(--ink)}.review-card dt{opacity:1}@media (max-width:780px){.wordmark{gap:10px;min-width:0}.wordmark>span{overflow-wrap:anywhere;min-width:0}.wordmark small{font-size:14px;line-height:1.5}header nav{gap:10px 20px;margin-top:16px}header nav a{min-height:44px;font-size:18px}.hero h1,.article-heading h1{overflow-wrap:anywhere;font-size:clamp(32px,9.4vw,38px);line-height:1.18}.hero-copy{min-width:0}.eyebrow{letter-spacing:.06em;font-size:14px;line-height:1.6}.crumbs a{min-height:44px;font-size:16px}.review-card,.article-body .review-card{overflow-wrap:anywhere;padding:22px 18px;display:block}.card-number{white-space:nowrap;margin-bottom:14px;font-size:30px;display:block}.review-card h3{font-size:28px;line-height:1.2}.review-card p,.review-card dl,.review-card dd,.product-banner p,.guide-tile p,.directory-grid p,.all-links p,.sources p,.sources li,.context-link,.related a{font-size:18px;line-height:1.7}.review-card dt{opacity:1;font-size:14px;line-height:1.6}.review-card .button,.text-link,.contents a{font-size:18px}.review-card .actions{flex-direction:column;align-items:stretch;display:flex}.review-card .actions .text-link{align-items:center;min-height:44px;display:flex}.button{white-space:normal;overflow-wrap:anywhere;max-width:100%}.article-wrap{padding-inline:20px}.article-body .sources{padding:22px 16px}.sources ol{padding-left:22px}main p,main dd,main a{overflow-wrap:anywhere}.floating-prompt{overscroll-behavior:contain;max-width:none;max-height:min(220px,30dvh);padding:18px;left:12px;right:12px;overflow:auto}.floating-prompt .dismiss,dialog .dismiss{float:right;background:var(--surface);margin:-10px -10px 0 8px;position:sticky;top:0}.floating-prompt p{font-size:18px}dialog{overscroll-behavior:contain;max-height:calc(100dvh - 32px);padding-top:24px;overflow:auto}.later{min-height:44px;font-size:18px}.footer-inner nav a{font-size:16px}}
.science-article{max-width:1120px;margin:54px auto;padding:0 28px;font-size:20px;line-height:1.75}.science-article .science-heading{border-top:8px solid var(--ink);padding-top:28px}.science-article .science-heading nav{gap:12px;margin-bottom:24px;font-size:18px}.science-article .science-heading nav a{font-size:18px;text-decoration:underline}.science-heading h1{overflow-wrap:anywhere;font-size:clamp(34px,4.8vw,58px);line-height:1.15}.science-article .kicker{letter-spacing:.06em;text-transform:uppercase;font-size:18px;font-weight:600}.science-article .article-deck{max-width:880px;font-size:22px;line-height:1.55}.science-article .record-meta{border-block:1px solid var(--ink);flex-wrap:wrap;gap:24px;margin-bottom:16px;padding:16px 0;font-size:18px;display:flex}.science-article .record-meta div{flex-direction:column;display:flex}.science-article .science-dates{font-size:18px}.science-article .article-container{max-width:880px}.science-article .article-brief{border-left:5px solid var(--ink);background:#f3eee7;margin-block:28px;padding:20px 24px}.science-article .article-brief p{margin-bottom:12px}.science-article .science-review-note{font-size:18px}.science-article .contents{margin:24px 0;padding:18px 24px;font-size:18px;display:block;position:static}.science-article .contents summary{cursor:pointer;min-height:44px;font-weight:700}.science-article .contents nav{margin-top:18px;display:block}.science-article .contents nav a{min-height:44px;margin:8px 0;padding:6px 0;font-size:18px;font-weight:400;text-decoration:underline;display:block}.science-article .contents nav span{min-width:32px;display:inline-block}.science-article .science-intro,.science-article .science-body{max-width:820px;font-size:20px;line-height:1.75}.science-article .science-section{margin:52px 0;scroll-margin-top:24px}.science-article h2{overflow-wrap:anywhere;font-size:32px;line-height:1.25}.science-article h3{font-size:25px;line-height:1.3}.science-article p{overflow-wrap:anywhere}.science-article .science-citations{flex-wrap:wrap;gap:18px;margin:12px 0;font-size:18px;line-height:1.6;display:flex}.science-article .science-citations a{min-height:36px;padding-block:5px}.science-article .science-facts{background:#f3eee7;margin:36px 0;padding:24px}.science-article .science-facts dl{margin:0}.science-article .science-facts dl>div{border-top:1px solid #b4a2ad;padding:16px 0}.science-article .science-facts dt{overflow-wrap:anywhere}.science-article .science-facts dd p{margin:6px 0}.science-article .science-figure{border-block:2px solid var(--ink);margin:38px 0;padding:24px 0}.science-article .science-figure img{background:#fff;width:100%;height:auto;display:block}.science-article .science-figure figcaption{margin:20px 0;font-size:18px}.science-article .science-figure figcaption p{margin-bottom:12px}.science-article .science-downloads{flex-wrap:wrap;gap:14px 24px;font-size:18px;display:flex}.science-article .science-downloads a{min-height:44px;padding-block:8px}.science-article .science-table-scroll{overscroll-behavior-inline:contain;border:1px solid var(--ink);scrollbar-gutter:stable;max-width:100%;margin:24px 0;overflow-x:auto}.science-article table{border-collapse:collapse;table-layout:fixed;color:#603f55;background:#fff;width:100%;min-width:660px;font-size:18px;line-height:1.6}.science-article table caption{caption-side:top;text-align:left;overflow-wrap:anywhere;color:#603f55;background:#f3eee7;padding:16px;font-weight:700}.science-article th,.science-article td{text-align:left;vertical-align:top;overflow-wrap:anywhere;-webkit-hyphens:auto;hyphens:auto;word-break:normal;border:1px solid #b4a2ad;padding:16px}.science-article thead th{color:#603f55;background:#f3eee7}.science-article .science-faq details{border-block-start:1px solid #b4a2ad;padding:20px 0}.science-article .science-faq summary{cursor:pointer;min-height:44px;font-size:20px;font-weight:700;line-height:1.55}.science-article .science-faq details p{margin-top:18px}.science-article .science-assessment,.science-article .science-limits,.science-article .science-sources{border-top:2px solid var(--ink);margin-top:40px;padding-top:24px}.science-article .science-sources{font-size:18px;line-height:1.7}.science-article .science-sources li{overflow-wrap:anywhere;padding:12px 0}.science-article .science-sources li p{margin-top:10px}.science-article .science-reading>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.science-article .science-reading>div>a{border:1px solid var(--ink);background:#f3eee7;padding:22px;text-decoration:none;display:block}.science-article .science-reading h3{margin-bottom:10px;font-size:23px;line-height:1.35}.science-related{border-top:2px solid var(--ink);margin-top:40px;padding-top:24px}.science-related>a{min-height:44px;margin:16px 0;font-size:20px;line-height:1.6;display:block}.science-related p{font-size:18px}@media (max-width:700px){.science-article{padding-inline:20px}.science-article .science-intro,.science-article .science-body{font-size:20px}.science-article .article-deck{font-size:21px}.science-article h2{font-size:28px}.science-article .science-facts{padding:20px}.science-article .science-reading>div{grid-template-columns:1fr}.science-article .science-sources{font-size:18px}.science-article .science-sources ol{padding-left:24px}.science-article .science-heading nav{display:block}.science-article .science-heading nav>*{margin-right:12px}.science-article .record-meta{gap:12px;display:grid}.science-article .contents{padding:18px}.science-article table{font-size:18px}}@media (forced-colors:active){.science-article table,.science-article table caption,.science-article thead th,.science-article td,.science-article th,.science-article .science-facts,.science-article .article-brief,.science-article .science-reading>div>a{color:canvastext;background:canvas;border-color:canvastext}}@media print{.science-article .contents{display:none}.science-article .science-table-scroll{overflow:visible}.science-article table{min-width:0}.science-article .science-section{break-inside:avoid-page}}.science-index{max-width:1180px;margin:64px auto;padding:0 28px}.science-index .science-index-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.science-index .science-index-links>a{background:var(--surface);border-top:3px solid var(--ink);overflow-wrap:anywhere;padding:24px;font-size:20px;text-decoration:none}.science-index h2{font-size:34px}.science-index h3{font-size:27px}.science-index p{font-size:20px}.science-article .product-banner{margin-block:32px}.science-article .product-banner p,.science-article .product-banner a{font-size:18px}.science-article :focus-visible,.science-related :focus-visible,.science-index :focus-visible{outline:3px solid var(--ink);outline-offset:4px}.science-article .science-facts dd{margin-left:0}.science-article .science-sources a{overflow-wrap:anywhere}@media (max-width:700px){.science-index{padding-inline:20px}.science-index .science-index-links{grid-template-columns:1fr}.science-article .product-banner{padding:20px;display:block}.science-article .product-banner .actions{margin-top:20px}.science-article .science-heading nav a{min-height:44px;display:inline-block}}@media (forced-colors:active){.science-article :focus-visible,.science-related :focus-visible,.science-index :focus-visible{outline-color:highlight}.science-article .product-banner,.science-index .science-index-links>a{color:canvastext;background:canvas;border-color:canvastext}.science-article .product-banner a{color:linktext;background:canvas;border-color:linktext}}