:root{--ink:#122643;--muted:#58677b;--paper:#f6f8fc;--line:#dce3ef;--orange:#225bc9;--mint:#c4d8fc;--white:#fff;--pale:#edf3ff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--orange);outline-offset:5px}[hidden]{display:none!important}.wrap{width:min(1240px,calc(100% - 80px));margin-inline:auto}.topline{background:var(--ink);color:#dce6e7;font-size:10px;letter-spacing:1.7px;line-height:36px}.topline .wrap{display:flex;justify-content:space-between}.topline span{letter-spacing:.5px;color:#b9cbcf}.header{display:flex;align-items:center;justify-content:space-between;padding-block:28px;border-bottom:1px solid var(--line);gap:24px}.brand{display:inline-flex;gap:12px;align-items:center;text-decoration:none;font-size:23px;letter-spacing:-1px;white-space:nowrap}.brand strong{font-size:14px;letter-spacing:1px}.brand-ai{color:var(--orange)}.brand-icon{width:37px;height:37px;display:inline-flex;align-items:center;justify-content:center;background:var(--ink);color:white;font-size:25px;position:relative;font-weight:800}.brand-icon span{color:var(--mint);font-size:16px;position:absolute;right:0;top:-5px}.header nav{display:flex;align-items:center;gap:28px}.header nav a{font-size:13px;text-decoration:none;font-weight:600}.header nav a:hover,.text-link:hover{color:var(--orange)}.header .nav-cta{border:1px solid var(--ink);padding:10px 17px}.nav-cta span{margin-left:18px}.eyebrow{font-size:10px;letter-spacing:1.65px;font-weight:750;text-transform:uppercase;line-height:1.5}.live-dot{width:7px;height:7px;background:var(--orange);display:inline-block;margin-right:8px;border-radius:50%}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;padding-block:65px 55px;align-items:center}.hero h1{font-size:clamp(58px,5.6vw,80px);line-height:1.03;font-weight:650;letter-spacing:-4px;margin:24px 0}.hero h1 em,.page-heading em{font-family:Georgia,serif;font-weight:400;color:var(--orange)}.hero-lead{font-size:17px;color:var(--muted);max-width:490px;line-height:1.8}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:30px;flex-wrap:wrap}.button{display:inline-flex;gap:25px;align-items:center;background:var(--orange);color:white;padding:14px 21px;text-decoration:none;font-size:13px;font-weight:650;transition:background .15s}.button:hover{background:#ac4321}.text-link{font-size:12px;font-weight:650;text-decoration:none}.hero-proof{display:flex;gap:20px;margin-top:37px;font-size:10px;color:var(--muted)}.hero-proof span:before{content:'✓';color:var(--orange);padding-right:5px}.feature-panel{background:var(--ink);color:white;display:block;text-decoration:none;min-height:480px;position:relative;overflow:hidden}.panel-top{padding:22px 26px;display:flex;justify-content:space-between;border-bottom:1px solid #ffffff25;font-size:8px;letter-spacing:1.4px;color:#c1d6d9}.signal-graphic{height:220px;position:relative;background-image:linear-gradient(#fff00000 98%,#ffffff08 98%),linear-gradient(90deg,transparent 98%,#ffffff08 98%);background-size:32px 32px;overflow:hidden}.signal-orbit{border:1px solid #b5cfbd44;border-radius:50%;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.one{width:175px;height:175px}.two{width:290px;height:290px}.signal-core{width:92px;height:92px;border-radius:50%;display:grid;place-items:center;color:var(--ink);background:var(--mint);font-size:60px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 13px #c4d8fc0b}.signal-label{position:absolute;font-size:8px;letter-spacing:1.4px;padding:6px 11px;background:#213e47;color:#e5ece8;border:1px solid #496261}.label-a{left:24px;top:37px}.label-b{right:22px;bottom:24px;background:var(--mint);color:var(--ink)}.panel-bottom{padding:24px 30px 32px;position:relative}.panel-bottom>.eyebrow{color:var(--mint)}.panel-bottom h2{font-size:36px;line-height:1.12;letter-spacing:-1.4px;margin:13px 0}.panel-bottom p{color:#b5c8cd;font-size:12px;margin:0}.panel-arrow{position:absolute;right:28px;bottom:26px;font-size:35px;color:var(--mint)}.sponsor-strip{border-block:1px solid 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/* Directory layout: compact browsing inspired by resource libraries. */
:root{--ink:#202b30;--muted:#687274;--paper:#fff;--line:#e0e4e3;--orange:#225bc9;--pale:#f4f6f5}
body{font-size:14px}.topline{display:none}.header{padding-block:17px}.header .brand-icon{display:none}.header .brand{font-size:20px}.header .brand strong{font-size:13px}.header nav a{font-size:12px}.header .nav-cta{padding:6px 12px}.page-heading{padding-block:35px 25px}.page-heading h1,.page-heading.compact h1{font-size:36px;letter-spacing:-1.4px}.section{padding-block:32px 40px}.guide-card{min-height:230px;padding:20px}.guide-card h3{font-size:20px;margin-top:16px}.guide-card p{font-size:12px}.footer-top{padding-bottom:14px}.footer-top .brand{font-size:17px}footer{padding-block:25px 18px}.bottom-feature h2{font-size:35px}.article-heading h1{font-size:37px}.article-summary{font-size:17px}.article-layout{gap:70px}.article-main section h2{font-size:24px}.article-main section p,.article-main li{font-size:15px}.article-layout{padding-block:20px 45px}.byline{margin-block:18px 24px}.takeaway p{font-size:16px}.takeaway{padding:17px 20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.directory-home{background:#f7f8f7;background-image:repeating-linear-gradient(135deg,transparent,transparent 4px,#e8ecea55 4px,#e8ecea55 5px)}.directory-home>.header,.directory-home>footer{display:none}.directory-layout{width:min(1440px,100%);margin:auto;display:grid;grid-template-columns:252px minmax(0,1fr);background:white;min-height:100vh;border-inline:1px solid var(--line)}.directory-sidebar{padding:30px 22px 85px;border-right:1px solid var(--line);position:sticky;top:0;align-self:start;height:100vh;overflow:auto;scrollbar-width:thin}.directory-brand{display:flex;flex-direction:column;align-items:flex-start;gap:17px;text-decoration:none;font-size:19px;font-weight:500;letter-spacing:-.7px}.directory-brand strong{font-weight:750}.directory-mark{display:grid;grid-template-columns:repeat(3,7px);gap:3px}.directory-mark i{width:7px;height:7px;background:#dfe6e2}.directory-mark i:nth-child(2),.directory-mark i:nth-child(4),.directory-mark i:nth-child(8){background:#8fbbad}.directory-mark i:nth-child(5){background:#225bc9}.directory-mark i:nth-child(9){background:#d69767}.directory-sidebar h1{font-size:16px;font-weight:650;line-height:1.45;letter-spacing:-.2px;margin:21px 0 8px}.sidebar-intro{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 17px}.sidebar-start{display:flex;justify-content:space-between;text-decoration:none;background:var(--ink);color:white;border-radius:5px;padding:9px 12px;font-size:11px;font-weight:650}.sidebar-start:hover{background:#225bc9}.sidebar-stat{margin-top:12px;display:flex;align-items:center;gap:5px;font-size:10px;background:#edf3ff;color:#34568c;padding:8px;border-radius:4px}.sidebar-stat>span:last-child{margin-left:auto;font-size:8px;color:#788880}.status-dot{width:5px;height:5px;background:#225bc9;border-radius:50%;flex-shrink:0}.sidebar-section{border-top:1px dashed var(--line);padding-top:19px;margin-top:22px}.sidebar-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.sidebar-heading h2{font:10px/1.3 ui-monospace,SFMono-Regular,monospace;letter-spacing:1px;text-transform:uppercase;color:#78827e;margin:0}.sidebar-heading a{font-size:9px;color:var(--muted)}.topic-filters{display:flex;flex-direction:column;gap:2px}.topic-filters button{display:flex;align-items:center;justify-content:space-between;gap:8px;border:0;background:transparent;border-radius:4px;padding:7px 8px;color:#53615b;font-size:11px;text-align:left;cursor:pointer}.topic-filters button>span:last-child{font:10px ui-monospace,SFMono-Regular,monospace;color:#8a9590}.topic-filters button:hover{background:#f4f6f4}.topic-filters button[aria-pressed=true]{background:#eaf1ff;color:#214f9f;font-weight:650}.tool-shortcut{display:flex;justify-content:space-between;padding:6px 8px;font-size:11px;text-decoration:none;color:#59625f}.tool-shortcut:hover{color:#225bc9}.sidebar-small{font-size:9px;color:#89918d;line-height:1.6;margin:8px 8px 0}.sidebar-bottom{padding-top:18px;margin-top:22px;border-top:1px dashed var(--line);font-size:9px;color:#87908b;line-height:1.8}.sidebar-bottom nav{display:flex;flex-wrap:wrap;gap:5px 12px;margin-top:10px}.sidebar-bottom a{color:#6e7c74}.directory-main{padding:0 25px 90px;min-width:0}.directory-toolbar{position:sticky;top:0;z-index:4;background:#ffffffed;backdrop-filter:blur(8px);padding:14px 0 12px;display:flex;gap:14px;align-items:center;border-bottom:1px dashed var(--line)}.directory-search{display:flex;align-items:center;gap:8px;border:1px solid #d8ded9;background:#f7f8f7;border-radius:6px;padding:7px 11px;flex:1;min-width:0}.directory-search>span:first-child{font-size:21px;line-height:1;color:#819087}.directory-search input{flex:1;min-width:0;background:transparent;border:0;padding:0;color:var(--ink);font-size:12px;height:22px;outline-offset:7px}.directory-search kbd{font:9px ui-monospace,SFMono-Regular,monospace;border:1px solid #dce2dc;padding:2px 4px;color:#8b958f;border-radius:3px;white-space:nowrap}.directory-toolbar>a{font-size:10px;white-space:nowrap;color:#66786b;text-decoration:none}.directory-intro{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:21px 0 18px}.directory-intro h2{font-size:20px;letter-spacing:-.6px;margin:0 0 4px}.directory-intro p{font-size:11px;color:var(--muted);margin:0}.library-count{font:9px ui-monospace,SFMono-Regular,monospace;color:#879189;white-space:nowrap}.compact-section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.compact-section-heading h2,.directory-result-heading h2{font:10px/1.4 ui-monospace,SFMono-Regular,monospace;letter-spacing:1px;text-transform:uppercase;color:#7d8880;margin:0}.compact-section-heading a{font-size:9px;color:#6d8273;text-decoration:none}.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.quick-grid>a{display:block;position:relative;padding:13px 14px;background:#f3f6fc;border:1px solid #dce4f1;border-radius:7px;text-decoration:none;min-height:114px}.quick-grid>a:hover{border-color:#a0b8a8}.quick-grid>a>span{font-size:8px;letter-spacing:.7px;color:#7c8c80;text-transform:uppercase}.quick-grid h3{font-size:14px;line-height:1.4;letter-spacing:-.2px;margin:9px 0 4px;font-weight:650}.quick-grid p{font-size:10px;line-height:1.7;color:#738075;margin:0;padding-right:8px}.quick-grid b{font-size:14px;position:absolute;right:12px;bottom:9px;color:#6b8a72}.directory-results{margin-top:25px}.directory-result-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px dashed var(--line);padding-top:18px;margin-bottom:12px}.directory-result-heading>div{display:flex;align-items:center;gap:12px}.directory-result-heading p{font:10px ui-monospace,SFMono-Regular,monospace;color:#79867d;margin:0}.directory-result-heading button{font-size:10px;background:transparent;border:0;text-decoration:underline;color:#225bc9;cursor:pointer}.directory-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px;align-items:start}.directory-card{background:white;border:1px solid #e0e5df;border-radius:7px;padding:14px 14px 12px;min-width:0;position:relative}.directory-card:hover{border-color:#a2b5a5}.directory-card-top{display:flex;justify-content:space-between;align-items:center;gap:6px;font:8px ui-monospace,SFMono-Regular,monospace;color:#8b968e}.category-tag{font:8px/1.5 ui-monospace,SFMono-Regular,monospace;color:#688770;background:#edf3ff;border:1px solid #dce5f6;border-radius:3px;padding:2px 5px;text-decoration:none;white-space:nowrap}.directory-card h3{font-size:14px;line-height:1.45;letter-spacing:-.15px;margin:11px 0 7px;font-weight:650}.directory-card h3 a{text-decoration:none}.directory-card h3 a:hover{text-decoration:underline}.directory-card>p{font-size:11px;line-height:1.75;color:#6e7b71;margin:0 0 12px}.entry-meta{display:flex;gap:5px;flex-wrap:wrap;font-size:8px;color:#8a958c;margin-bottom:10px}.entry-prompt{font-size:10px;margin:0}.entry-prompt summary{cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:11px;padding:4px 7px;background:#f7f8f6;border:1px solid #e2e6df;border-radius:3px;font-size:9px;color:#5b6e5f}.entry-prompt summary::-webkit-details-marker{display:none}.entry-prompt[open] summary{background:#eaf2e9}.entry-prompt .prompt-box{padding:10px;margin:10px 0;border-radius:4px}.entry-prompt .prompt-text{font:10px/1.8 ui-monospace,SFMono-Regular,monospace;margin:0 0 8px}.entry-prompt .copy-prompt{font-size:9px;padding:3px 7px;border-color:#bcc9bb;border-radius:3px}.entry-prompt .copy-status{font-size:9px}.read-guide{float:right;font-size:9px;color:#6f8272;text-decoration:none;line-height:26px}.read-guide:hover{text-decoration:underline}.read-guide span{margin-left:5px}.directory-card:after{content:'';display:block;clear:both}.directory-end{padding:24px 0 8px;margin-top:27px;border-top:1px dashed var(--line)}.directory-end h2{font-size:15px;letter-spacing:-.2px;margin:0 0 6px}.directory-end p{font-size:11px;color:var(--muted);margin:0 0 8px}.directory-end>a{font-size:11px;color:#225bc9}.directory-sponsors{position:fixed;bottom:0;left:0;right:0;z-index:10;border-top:1px solid #dce3dc;background:#fafbf9f5;backdrop-filter:blur(8px)}.directory-sponsors .sponsor-strip{width:min(1390px,calc(100% - 40px));margin:auto;border:0;min-height:44px;gap:23px;flex-wrap:nowrap}.directory-sponsors .sponsor-strip>.eyebrow{font:8px ui-monospace,SFMono-Regular,monospace;letter-spacing:1px;margin:0;color:#7b897e}.directory-sponsors .sponsor-strip>a:not(.sponsor-more){display:flex;align-items:center;gap:7px;font-size:13px!important;letter-spacing:0!important;line-height:1.2!important}.directory-sponsors .sponsor-small{font-size:8px;letter-spacing:.6px;display:inline;margin:0}.directory-sponsors .northwick .sponsor-small{font-family:inherit}.directory-sponsors .sponsor-divider{height:15px}.directory-sponsors .sponsor-more{font-size:9px;margin-left:auto}.directory-home #no-results{font-size:12px;background:#f6f8f4;border:1px dashed #dbe4d7;padding:25px;color:#687e69}@media(min-width:1550px){.directory-layout{margin-top:0}.directory-main{padding-inline:30px}.directory-card h3{font-size:15px}.directory-card>p{font-size:12px}}@media(max-width:1100px){.directory-layout{grid-template-columns:230px minmax(0,1fr)}.directory-sidebar{padding-inline:18px}.directory-main{padding-inline:20px}.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-count{display:none}.quick-grid{gap:8px}.quick-grid>a{padding:12px 10px}.quick-grid h3{font-size:13px}}@media(max-width:720px){.directory-layout{display:block;border:0}.directory-sidebar{position:static;height:auto;overflow:visible;padding:20px 18px 13px;border-right:0;border-bottom:1px solid var(--line)}.directory-brand{flex-direction:row;align-items:center;gap:10px;font-size:20px}.directory-mark{grid-template-columns:repeat(3,5px);gap:2px}.directory-mark i{width:5px;height:5px}.directory-sidebar h1{font-size:14px;margin:15px 0 5px}.directory-sidebar h1 br{display:none}.sidebar-intro{font-size:11px;line-height:1.7;margin-bottom:11px;max-width:460px}.sidebar-start{display:inline-flex;gap:25px;padding:7px 10px;font-size:10px}.sidebar-stat{display:none}.sidebar-section{margin-top:15px;padding-top:12px}.sidebar-section:has(.tool-shortcut),.sidebar-bottom{display:none}.sidebar-heading{display:none}.topic-filters{display:flex;flex-direction:row;flex-wrap:wrap;gap:5px}.topic-filters button{border:1px solid #e2e8df;padding:5px 8px;font-size:9px;gap:8px}.topic-filters button>span:last-child{font-size:8px}.directory-main{padding:0 15px 110px}.directory-toolbar{padding-block:11px;gap:10px}.directory-search{padding:6px 9px}.directory-search input{font-size:11px}.directory-search kbd{display:none}.directory-toolbar>a{font-size:9px}.directory-intro{padding-block:17px 14px}.directory-intro h2{font-size:17px;letter-spacing:-.4px}.directory-intro p{font-size:10px;line-height:1.7;max-width:300px}.quick-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.quick-grid>a{min-height:108px;padding:9px}.quick-grid>a>span{font-size:7px;letter-spacing:.2px}.quick-grid h3{font-size:11px;line-height:1.5;margin-top:7px}.quick-grid p{font-size:9px;line-height:1.65;padding-right:0}.quick-grid b{display:none}.compact-section-heading h2,.directory-result-heading h2{font-size:9px;letter-spacing:.7px}.compact-section-heading a{font-size:8px}.directory-results{margin-top:18px}.directory-result-heading{padding-top:14px}.directory-grid{grid-template-columns:1fr;gap:9px}.directory-card{padding:13px 14px}.directory-card h3{font-size:15px;margin-block:9px 5px;line-height:1.45}.directory-card>p{font-size:11px;line-height:1.7;margin-bottom:8px}.directory-card-top{font-size:8px}.category-tag{font-size:8px}.entry-meta{margin-bottom:9px}.directory-sponsors .sponsor-strip{width:calc(100% - 24px);gap:12px;flex-wrap:wrap;padding-block:9px;min-height:59px;justify-content:flex-start}.directory-sponsors .sponsor-strip>.eyebrow{font-size:7px;width:auto}.directory-sponsors .sponsor-strip>a:not(.sponsor-more){font-size:10px!important;gap:4px}.directory-sponsors .sponsor-small{font-size:6px;letter-spacing:.2px}.directory-sponsors .sponsor-divider{height:11px}.directory-sponsors .sponsor-more{font-size:8px;margin-left:0}.directory-home .header{display:none}.header nav{gap:13px}.page-heading h1,.page-heading.compact h1{font-size:31px;letter-spacing:-1px}.article-heading h1{font-size:31px}.article-summary{font-size:16px}.article-main section h2{font-size:23px}.guide-card h3{font-size:21px}}@media(max-width:360px){.quick-grid{grid-template-columns:1fr}.quick-grid>a{min-height:0}.quick-grid p{display:none}.directory-sponsors .sponsor-more{display:none}}
@media(max-width:720px){.quick-grid>a{min-height:78px}.quick-grid p{display:none}.quick-grid h3{margin-bottom:0}.quick-grid>a>span{font-size:6px}.directory-sidebar h1{max-width:100%}}
/* Original publication masthead and authentic sponsor artwork. */
.publication-mark{display:inline-flex;flex-direction:column;align-items:flex-start;gap:3px;text-decoration:none;color:#202b30}.publication-the{font:700 8px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:2.5px;color:#7d8884}.publication-core{display:flex;align-items:baseline;gap:7px;white-space:nowrap}.publication-hvac{font:850 21px/1 Arial,Helvetica,sans-serif;letter-spacing:-1.1px}.publication-hvac>span{color:#225bc9}.publication-insider{font:italic 26px/.95 Georgia,"Times New Roman",serif;letter-spacing:-1px}.directory-masthead{display:inline-flex;margin:0 0 15px;padding-bottom:16px;border-bottom:2px solid #202b30;width:100%;gap:5px}.directory-masthead .publication-core{display:flex;flex-direction:column;align-items:flex-start;gap:0}.directory-masthead .publication-hvac{font-size:34px;letter-spacing:-1.9px;line-height:1.05}.directory-masthead .publication-insider{font-size:43px;line-height:1;letter-spacing:-1.8px}.directory-masthead .publication-the{font-size:8px;letter-spacing:3px}.sidebar-tagline{font-size:12px;font-weight:650;line-height:1.5;margin:0 0 5px;color:#32423a}.directory-intro h1{font-size:20px;letter-spacing:-.6px;line-height:1.3;margin:0 0 4px;font-weight:650}.directory-sidebar{padding-top:25px;padding-bottom:30px}.directory-main{padding-bottom:30px}.footer-masthead{color:#f7f9f7}.footer-masthead .publication-the{color:#a5b4ae}.footer-masthead .publication-hvac>span{color:#9ebeff}.sponsor-cards{display:flex;flex-direction:column;gap:10px;margin:20px 0 22px}.sponsor-section-label{margin:0;font:9px/1.3 ui-monospace,SFMono-Regular,monospace;letter-spacing:1px;text-transform:uppercase;color:#8a958d}.sponsor-card{display:block;border:1px solid #e0e4dc;border-radius:5px;padding:13px 14px 12px;text-decoration:none;transition:border-color .15s}.sponsor-card:hover{border-color:#90a49b}.sponsor-know{background:#0b0d10;color:#fff;border-top:3px solid #2ea3f2;border-color:#262b30}.ad-label{display:block;font:7px/1.3 ui-monospace,SFMono-Regular,monospace;letter-spacing:1.4px;opacity:.58}.sponsor-card img{display:block;object-fit:contain;object-position:left center;max-width:100%;height:auto}.sponsor-know img{width:148px;margin:16px 0 11px}.sponsor-card p{font-size:10px;line-height:1.7;margin:0 0 12px}.sponsor-know p{color:#c0c8ce}.sponsor-cta{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:9px;font-weight:650;border-top:1px solid #ffffff22;padding-top:8px}.sponsor-know .sponsor-cta{color:#75c1f1}.sponsor-northwick{background:#f7f5ee;color:#20302c;border-color:#e3e1d8;border-top:3px solid #d99b30}.sponsor-northwick img{width:154px;margin:10px 0 11px}.sponsor-northwick p{color:#5b655c}.sponsor-northwick .sponsor-cta{border-color:#dce0d7;color:#304c3b}.sponsor-disclosure{font-size:8px;align-self:flex-start;color:#879189;text-underline-offset:3px}.article-sidebar .sponsor-cards{margin-top:22px}.article-sidebar .sidebar-note{margin-top:25px}.article-sidebar .sticky{position:static}.article-sidebar{padding-top:33px}.sponsor-logo-display{display:inline-block;padding:0;background:transparent}.sponsor-logo-display img{display:block;width:200px;height:auto;max-width:100%}.know-logo-display{background:transparent}.know-logo-display img{filter:brightness(0)}.northwick-logo-display{background:transparent}.directory-sponsors{display:none}.directory-sidebar .sponsor-cards+.sidebar-section{margin-top:18px}.directory-masthead .publication-hvac{color:#202b30}@media(max-width:1000px){.article-layout{gap:35px}.directory-masthead .publication-hvac{font-size:31px}.directory-masthead .publication-insider{font-size:40px}}@media(max-width:720px){.directory-sidebar{padding-top:18px}.directory-masthead{width:auto;display:inline-flex;gap:2px;margin:0 0 12px;padding:0;border:0}.directory-masthead .publication-core{flex-direction:row;gap:6px;align-items:baseline}.directory-masthead .publication-hvac{font-size:25px;letter-spacing:-1.3px;line-height:1.1}.directory-masthead .publication-insider{font-size:30px;letter-spacing:-1px}.directory-masthead .publication-the{font-size:7px;letter-spacing:2px}.sidebar-tagline{font-size:11px}.directory-sidebar .sponsor-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:16px 0}.directory-sidebar .sponsor-section-label{grid-column:1/-1;font-size:8px}.directory-sidebar .sponsor-card{padding:10px}.directory-sidebar .sponsor-know img{width:125px;margin:13px 0 10px}.directory-sidebar .sponsor-northwick img{width:132px;margin:3px 0 4px}.directory-sidebar .sponsor-card p{font-size:9px;line-height:1.6;margin-bottom:8px}.directory-sidebar .sponsor-cta{font-size:8px;gap:3px}.directory-sidebar .sponsor-disclosure{grid-column:1/-1;font-size:8px}.directory-main{padding-bottom:30px}.directory-intro h1{font-size:17px;letter-spacing:-.4px}.header-masthead .publication-hvac{font-size:19px}.header-masthead .publication-insider{font-size:23px}.header-masthead .publication-the{font-size:7px}.header{gap:14px}.article-sidebar{display:block;padding-top:20px;border-top:1px solid var(--line);margin-top:35px}.article-sidebar .sticky>p,.article-sidebar .sticky>nav,.article-sidebar .sidebar-note{display:none}.article-sidebar .sponsor-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.article-sidebar .sponsor-section-label,.article-sidebar .sponsor-disclosure{grid-column:1/-1}.article-sidebar .sponsor-card{padding:12px}.article-sidebar .sponsor-know img{width:130px}.article-sidebar .sponsor-northwick img{width:140px}.article-sidebar .sponsor-card p{font-size:10px}.footer-top{gap:18px}.footer-masthead .publication-hvac{font-size:19px}.footer-masthead .publication-insider{font-size:23px}}
@font-face{font-family:NorthwickManrope;src:url('/northwick-manrope-800.ttf') format('truetype');font-style:normal;font-weight:800;font-display:swap}
.northwick-brand{display:inline-flex;flex-direction:column;align-items:flex-start;line-height:1;color:#20302c;margin:13px 0 15px;max-width:100%}.northwick-wordmark{display:block;font-family:NorthwickManrope,Manrope,sans-serif;font-size:32px;font-weight:800;letter-spacing:-1.887px;line-height:1;-webkit-text-stroke:.903px currentColor;paint-order:stroke fill}.northwick-wordmark .northwick-gold-dot{position:relative;display:inline-block;letter-spacing:0;margin-right:-.055em;line-height:1}.northwick-gold-dot:before{content:'';position:absolute;width:.23em;height:.23em;top:.10em;left:50%;transform:translateX(-50%);background:#d99b30;border-radius:50%}.northwick-brand-sub{display:block;width:100%;font-family:NorthwickManrope,Manrope,sans-serif;font-size:11.487px;letter-spacing:2.462px;font-weight:800;line-height:1.1;text-align:center;margin-top:6.564px}.northwick-logo-display .northwick-brand{margin:0}.mobile-directory-sponsors{display:none}@media(max-width:720px){.directory-sidebar .sponsor-cards{display:none}.mobile-directory-sponsors{display:block;margin-top:25px}.mobile-directory-sponsors .sponsor-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.mobile-directory-sponsors .sponsor-section-label,.mobile-directory-sponsors .sponsor-disclosure{grid-column:1/-1}.mobile-directory-sponsors .sponsor-card{padding:12px}.sponsor-northwick .northwick-wordmark{font-size:29px;letter-spacing:-1.71px;-webkit-text-stroke:.82px currentColor}.sponsor-northwick .northwick-brand-sub{font-size:10.4px;letter-spacing:2.23px;margin-top:5.95px}.article-sidebar .sponsor-northwick .northwick-wordmark{font-size:28px}.article-sidebar .sponsor-northwick .northwick-brand-sub{font-size:10px;letter-spacing:2.15px}}
/* Keep browsing controls ahead of advertising; let the rail scroll with the page. */
.directory-sidebar{position:static;height:auto;overflow:visible;align-self:stretch}
/* Keep the expanded editorial navigation readable on narrow screens. */
@media(max-width:720px){.header nav{flex-wrap:wrap;justify-content:flex-start;gap:10px 18px}.header nav a{white-space:nowrap}.header .nav-cta{margin-left:auto}}
/* Maintain readable contrast for small directory labels and metadata. */
.publication-the,.compact-section-heading h2,.compact-section-heading>a,.quick-grid>a>span,.directory-result-heading h2,.directory-result-heading #result-count,.directory-card-top>span,.directory-card>p,.entry-meta,.sponsor-section-label,.sponsor-disclosure{color:#53637b}
.category-tag,.read-guide{color:#214f9f}
.topic-filters button span:last-child{color:#53637b}
.topic-filters button[aria-pressed="true"] span:last-child{color:inherit}
.sponsor-northwick .ad-label{color:#53637b}

/* Sponsorship inquiry */
.sponsorship-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;padding-bottom:64px;align-items:start}.sponsorship-offer{padding:30px;background:#eef3fc;border:1px solid #d6e0f0;border-radius:10px}.sponsorship-offer h2{font-size:48px;margin:12px 0 20px}.sponsorship-offer h2 span{font-size:18px;font-weight:500}.sponsorship-offer p,.sponsorship-offer li,.sponsorship-inquiry p{line-height:1.65}.sponsorship-offer ul{padding-left:21px}.sponsorship-offer li{margin:12px 0}.sponsor-fine-print,.form-privacy{font-size:13px;color:#53637b}.sponsorship-inquiry{min-width:0}.sponsorship-inquiry h2{margin-top:0}.sponsorship-inquiry iframe{max-width:100%}.sponsor-background{border-top:1px solid #d6e0f0;padding-top:36px}#sponsorship-form{min-height:440px}.form-privacy{margin-top:20px}@media(max-width:700px){.sponsorship-layout{grid-template-columns:1fr;gap:32px}.sponsorship-offer{padding:24px}.sponsorship-offer h2{font-size:40px}}
.sponsor-contact-form{display:grid;gap:9px;margin-top:24px;min-height:0!important}.sponsor-contact-form label{font-size:14px;font-weight:700;margin-top:10px}.sponsor-contact-form label span{font-size:12px;font-weight:400;color:#53637b}.sponsor-contact-form input,.sponsor-contact-form textarea{width:100%;box-sizing:border-box;border:1px solid #a8bad6;border-radius:4px;background:#fff;color:#26332e;padding:12px;font:inherit;font-size:16px}.sponsor-contact-form textarea{resize:vertical}.sponsor-contact-form input:focus,.sponsor-contact-form textarea:focus{outline:2px solid #225bc9;outline-offset:2px}.sponsor-contact-form button{justify-self:start;border:0;border-radius:4px;background:#122643;color:#fff;padding:14px 20px;font:inherit;font-weight:700;cursor:pointer;margin-top:14px}.sponsor-contact-form button:disabled{opacity:.7;cursor:wait}.sponsor-honeypot{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.sponsor-contact-form .form-privacy{margin:12px 0 0}

/* Email subscription forms */
.newsletter-signup{margin:32px 0;padding:26px;background:#eef3fc;border:1px solid #d6e0f0;border-radius:8px;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:28px;align-items:start}.newsletter-signup h2{font-size:24px;line-height:1.2;margin:8px 0 12px;letter-spacing:-.65px}.newsletter-signup p{font-size:14px;line-height:1.6;margin:0}.newsletter-signup .eyebrow{font-size:10px}.newsletter-form{display:grid;gap:14px;min-width:0}.newsletter-fields{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:12px}.newsletter-fields label{font-size:12px;font-weight:700;display:grid;gap:7px}.newsletter-fields label span{font-weight:400}.newsletter-fields input{width:100%;min-width:0;border:1px solid #a8bad6;border-radius:4px;padding:11px 10px;background:white;color:#26332e;font:16px Arial,sans-serif}.newsletter-fields input:focus{outline:2px solid #225bc9;outline-offset:2px}.newsletter-consent{display:flex;align-items:flex-start;gap:9px;font-size:12px;line-height:1.5}.newsletter-consent input{flex-shrink:0;margin:3px 0 0;width:16px;height:16px;accent-color:#122643}.newsletter-form button{justify-self:start;background:#122643;border:0;border-radius:4px;color:#fff;padding:12px 18px;font:700 13px Arial,sans-serif;cursor:pointer}.newsletter-form .newsletter-privacy{font-size:11px;color:#53637b}.subscribe-page{max-width:1000px;padding-bottom:40px}.article-main .newsletter-signup{grid-template-columns:1fr}.article-main .newsletter-signup h2{margin-top:8px}@media(max-width:850px){.newsletter-signup{grid-template-columns:1fr;gap:20px}}@media(max-width:480px){.newsletter-signup{padding:20px}.newsletter-fields{grid-template-columns:1fr}.newsletter-form button{width:100%}}
.newsletter-fields label>span{font-weight:700}.newsletter-fields label small{font-size:inherit;font-weight:400}
.preferences-panel{padding-bottom:65px}.preferences-panel form{margin:0 0 30px}.preferences-panel button{border:0;cursor:pointer}.preferences-panel button:disabled{opacity:.65;cursor:wait}
/* Sales Team edition: same publication system, a longer masthead. */
.publication-hvac .sales-team-word{color:inherit}.directory-masthead .publication-hvac{font-size:28px;letter-spacing:-1.3px;white-space:normal;line-height:1.1}.directory-masthead .sales-team-word{display:block}.publication-the{font-size:7px;letter-spacing:1.4px}.publication-hvac{font-size:19px;letter-spacing:-.8px}.directory-masthead .publication-insider{font-size:42px}.directory-masthead .publication-the{font-size:7px;letter-spacing:1.3px}.mobile-directory-sponsors .sponsor-cards,.article-sidebar .sponsor-cards{grid-template-columns:1fr}.mobile-directory-sponsors .sponsor-card{max-width:340px}.header{flex-wrap:wrap}.footer-top{flex-wrap:wrap}@media(max-width:720px){.directory-masthead .publication-hvac{font-size:21px;white-space:nowrap;letter-spacing:-.9px}.directory-masthead .sales-team-word{display:inline}.directory-masthead .publication-insider{font-size:26px}.directory-masthead .publication-the{font-size:6px;letter-spacing:1.1px}.header-masthead .publication-hvac,.footer-masthead .publication-hvac{font-size:17px}.header-masthead .publication-insider,.footer-masthead .publication-insider{font-size:22px}.article-sidebar .sponsor-card{max-width:340px}}

/* Keep AI with Insider as one unbreakable masthead line. */
.publication-ai-insider{display:inline-flex;align-items:baseline;gap:6px;white-space:nowrap;flex-shrink:0}.publication-ai{font:850 19px/1 Arial,Helvetica,sans-serif;letter-spacing:-.8px;color:#225bc9}.directory-masthead .publication-ai{font-size:28px;letter-spacing:-1.3px}.footer-masthead .publication-ai{color:#9ebeff}@media(max-width:720px){.directory-masthead .publication-ai{font-size:21px;letter-spacing:-.9px}.header-masthead .publication-ai,.footer-masthead .publication-ai{font-size:17px}}
.sidebar-subscribe{display:block;margin:11px 0;font-size:11px;font-weight:650;color:#225bc9;text-underline-offset:3px}@media(max-width:720px){.sidebar-subscribe{display:inline-block;margin:0 0 0 12px;font-size:10px}}

/* Shared publication feature: editorial emphasis above the compact library. */
:root{--feature-accent:#9c492c;--feature-wash:#faf5ee;--feature-line:#e7d9c9}
.featured-article{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:24px;padding:23px 24px;margin:0 0 23px;border:1px solid var(--feature-line);border-top:3px solid var(--feature-accent);border-radius:7px;background:var(--feature-wash)}
.featured-label{font:700 9px/1.5 ui-monospace,SFMono-Regular,monospace;letter-spacing:1.2px;color:var(--feature-accent);margin:0 0 10px}.featured-label span{display:inline-block;font-weight:400;letter-spacing:0;color:var(--muted);margin-left:12px}
.featured-article h2{text-wrap:balance;font-size:clamp(23px,2.2vw,30px);font-weight:750;line-height:1.17;letter-spacing:-.8px;margin:0 0 11px;max-width:620px}.featured-article h2 a{text-decoration:none}.featured-article h2 a:hover{text-decoration:underline}
.featured-summary{font-size:12px;line-height:1.75;color:var(--muted);margin:0 0 16px;max-width:580px}.featured-link{font-size:11px;font-weight:750;color:var(--feature-accent);text-underline-offset:4px}.featured-time{font-size:10px;color:var(--muted);margin-left:16px}
.featured-inside{align-self:center;border-left:1px solid var(--feature-line);padding-left:22px}.featured-inside>p{font:700 9px/1.5 ui-monospace,SFMono-Regular,monospace;letter-spacing:.6px;text-transform:uppercase;margin:0 0 12px;color:var(--feature-accent)}.featured-inside ol{margin:0;padding-left:18px;display:grid;gap:11px;font-size:11px;line-height:1.55}.featured-inside li::marker{color:var(--feature-accent);font-weight:700}
@media(max-width:1000px){.featured-article{grid-template-columns:1fr;gap:17px;padding:20px}.featured-inside{border-left:0;border-top:1px solid var(--feature-line);padding:15px 0 0}.featured-inside ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 22px}}
@media(max-width:520px){.featured-article{padding:18px;margin-bottom:20px}.featured-article h2{text-wrap:balance;font-size:24px}.featured-inside{display:none}.featured-label span{display:block;margin:5px 0 0}}

/* Sales edition identity: navy and cobalt with the original publication typography. */
:root{--feature-accent:#225bc9;--feature-wash:#eff4ff;--feature-line:#ccdafa}
.directory-home{background:#f2f5fa;background-image:none}.directory-sidebar{background:#f8faff;border-top:4px solid #225bc9;padding-top:21px}.directory-main{border-top:4px solid #122643}.directory-masthead .publication-insider{color:#225bc9}.publication-ai{color:#225bc9}.publication-the{color:#53637b}.footer-masthead .publication-insider{color:#dce8ff}.sidebar-tagline{color:#263e60}.sidebar-stat>span:last-child,.sidebar-heading h2,.sidebar-small,.sidebar-bottom,.library-count,.quick-grid p,.directory-toolbar>a,.tool-shortcut,.sidebar-bottom a{color:#53637b}.sidebar-subscribe,.read-guide,.directory-end>a{color:#214f9f}.quick-grid>a:hover,.directory-card:hover{border-color:#7f9ecf}.topic-filters button{color:#53637b}.topic-filters button:hover{background:#edf3ff}.category-tag{border-color:#dce5f6}.newsletter-signup,.sponsorship-offer{background:#eef3fc}.footer-masthead .publication-ai{color:#9ebeff}
@media(max-width:720px){.directory-sidebar{padding-top:17px}.directory-main{border-top:0}}

/* News desk: prominent daily coverage, separate from evergreen playbooks. */
.news-home{margin:0 0 28px;border:1px solid var(--feature-line);border-radius:8px;overflow:hidden;background:var(--feature-wash)}.news-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 24px 14px;background:var(--ink);color:white}.news-kicker{font:700 9px/1.5 ui-monospace,SFMono-Regular,monospace;letter-spacing:2px;margin:0 0 5px;color:#c9d7e6}.news-heading h2{font-size:clamp(30px,3.5vw,45px);font-weight:750;letter-spacing:-1.4px;line-height:1.05;margin:0 0 9px}.news-heading>div>p:last-child{font-size:11px;color:#d7e0e8;margin:0}.news-heading>a{flex-shrink:0;color:white;font-size:11px;text-underline-offset:4px}.news-checked{font:9px/1.7 ui-monospace,SFMono-Regular,monospace;color:var(--muted);margin:0;padding:10px 24px;border-bottom:1px solid var(--feature-line)}.news-home-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr)}.news-card{padding:22px 24px;min-width:0}.news-home-grid .news-lead{grid-row:span 2;background:white;border-right:1px solid var(--feature-line)}.news-home-grid .news-card:not(.news-lead)+.news-card{border-top:1px solid var(--feature-line)}.news-meta{display:flex;flex-wrap:wrap;gap:5px 12px;font:9px/1.6 ui-monospace,SFMono-Regular,monospace;color:var(--muted);margin:0 0 10px}.news-meta>span:first-child{font-weight:750;color:var(--feature-accent)}.news-card h3{font-size:19px;font-weight:750;line-height:1.22;letter-spacing:-.45px;margin:0 0 12px;text-wrap:balance}.news-card h3 a{text-decoration:none}.news-card h3 a:hover{text-decoration:underline}.news-card.news-lead h3{font-size:clamp(26px,2.6vw,35px);letter-spacing:-1px}.news-card>p:not(.news-meta):not(.news-status){font-size:12px;line-height:1.75;color:var(--muted);margin:0 0 14px}.news-card .news-status{display:inline-block;margin:0 0 13px;font-size:9px;line-height:1.5;padding:3px 7px;color:var(--feature-accent);border:1px solid var(--feature-line);border-radius:3px}.news-read{display:block;font-size:11px;font-weight:750;color:var(--feature-accent)}.news-bottom{display:flex;justify-content:space-between;gap:16px;padding:11px 24px;border-top:1px solid var(--feature-line);font-size:10px;font-weight:650;color:var(--feature-accent)}.news-empty{padding:24px}.news-empty h3{margin:0 0 8px;font-size:20px}.news-empty p{font-size:13px;margin:0}.news-page-nav,.news-months{display:flex;gap:12px 24px;flex-wrap:wrap;font-size:13px}.news-page-nav{padding-top:12px}.news-months{padding:10px 0 25px}.news-collection{padding-bottom:45px}.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.news-list .news-card{border:1px solid var(--line);border-top:3px solid var(--feature-accent);border-radius:6px;background:white}.news-list .news-card h3{font-size:25px}.news-archive-callout{border-top:1px solid var(--line);padding-block:28px 50px}.news-archive-callout h2{font-size:25px}.news-announcement{font-size:12px;color:var(--muted);padding:14px 0;border-top:1px solid var(--line);margin-top:20px}.directory-toolbar>a{font-size:11px}.news-home~.featured-article .featured-label{margin-bottom:8px}
@media(max-width:1000px){.news-home-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}.news-heading{padding:20px}.news-card{padding:20px}.news-heading>a{max-width:100px}.news-checked{padding-inline:20px}}
@media(max-width:720px){.news-heading{align-items:flex-start}.news-heading h2{font-size:34px}.news-home-grid,.news-list{grid-template-columns:1fr}.news-home-grid .news-lead{grid-row:auto;border-right:0;border-bottom:1px solid var(--feature-line)}.news-card.news-lead h3{font-size:28px}.news-card h3{font-size:23px}.news-checked{font-size:9px}.news-bottom{padding-inline:20px}.news-card .news-status{font-size:10px}.news-meta{font-size:10px}.news-home .news-card>p:not(.news-meta):not(.news-status){font-size:13px}}

/* Mobile reading and in-content sponsor placement. */
.mobile-article-sponsors{display:none}
@media(max-width:720px){
.sidebar-tagline,.sidebar-intro,.directory-intro p{font-size:14px;line-height:1.7}.sidebar-start,.sidebar-subscribe{font-size:13px}.sidebar-start{padding:11px 13px}.topic-filters button{font-size:12px;min-height:36px;padding:8px 10px}.topic-filters button>span:last-child{font-size:11px}.sidebar-heading h2,.sidebar-heading a,.sidebar-bottom,.sidebar-bottom a{font-size:12px}.directory-toolbar>a{font-size:12px}.directory-search input{font-size:16px}.directory-search kbd{display:none}
.news-checked,.news-meta,.news-kicker,.news-card .news-status{font-size:12px}.news-heading>div>p:last-child{font-size:13px}.news-heading>a,.news-read,.news-bottom{font-size:13px}.news-home .news-card>p:not(.news-meta):not(.news-status){font-size:15px}.news-meta{gap:5px 10px}.news-heading{flex-wrap:wrap}.news-heading>a{max-width:none}.news-card h3{line-height:1.3}
.featured-label,.featured-time{font-size:12px}.featured-summary{font-size:15px}.featured-link{font-size:14px}.featured-inside>p,.featured-inside ol{font-size:12px}.compact-section-heading{gap:16px;align-items:start}.compact-section-heading h2,.compact-section-heading>a,.directory-result-heading h2,.directory-result-heading #result-count,.directory-result-heading button{font-size:12px}.quick-grid{grid-template-columns:1fr}.quick-grid>a{min-height:0;padding:15px}.quick-grid>a>span{font-size:11px}.quick-grid h3{font-size:17px;margin-top:6px}.quick-grid p{display:block;font-size:14px;line-height:1.6;margin-top:5px}
.directory-card{padding:18px}.directory-card-top,.directory-card-top>span,.category-tag,.entry-meta{font-size:12px}.category-tag{white-space:normal}.directory-card h3{font-size:19px;line-height:1.35;margin-block:12px 9px}.directory-card>p{font-size:15px;line-height:1.7}.entry-meta{line-height:1.6}.entry-prompt summary,.read-guide{font-size:13px;line-height:1.5;padding-block:9px}.entry-prompt .prompt-text{font-size:13px}.entry-prompt .copy-prompt,.entry-prompt .copy-status{font-size:12px}.entry-prompt .copy-prompt{padding:7px 10px}.directory-end p,.directory-end a{font-size:14px}
.byline,.breadcrumb,.article-note,.news-announcement{font-size:13px;line-height:1.65}.eyebrow{font-size:12px}.source-list p,.source-list li{font-size:14px!important}.newsletter-fields label,.newsletter-consent{font-size:14px}.newsletter-form .newsletter-privacy,.form-privacy,.sponsor-fine-print{font-size:13px}.footer-top p,.footer-bottom,.footer-bottom a{font-size:13px}
.mobile-directory-sponsors{margin:24px 0 28px;width:100%}.mobile-article-sponsors{display:block;margin:30px 0;width:100%}.mobile-directory-sponsors .sponsor-cards,.mobile-article-sponsors .sponsor-cards{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;width:100%;margin:0}.mobile-directory-sponsors .sponsor-card,.mobile-article-sponsors .sponsor-card,.article-sidebar .sponsor-card{width:100%;max-width:none;padding:20px}.mobile-directory-sponsors .sponsor-section-label,.mobile-article-sponsors .sponsor-section-label{font-size:12px}.mobile-directory-sponsors .ad-label,.mobile-article-sponsors .ad-label{font-size:11px}.mobile-directory-sponsors .sponsor-card p,.mobile-article-sponsors .sponsor-card p{font-size:15px;line-height:1.65;margin-bottom:16px}.mobile-directory-sponsors .sponsor-cta,.mobile-article-sponsors .sponsor-cta{font-size:14px;padding-top:13px}.mobile-directory-sponsors .sponsor-disclosure,.mobile-article-sponsors .sponsor-disclosure{font-size:12px}.mobile-directory-sponsors .sponsor-know img,.mobile-article-sponsors .sponsor-know img{width:180px;max-width:100%;margin:17px 0}.mobile-directory-sponsors .sponsor-northwick .northwick-wordmark,.mobile-article-sponsors .sponsor-northwick .northwick-wordmark{font-size:34px}.mobile-directory-sponsors .sponsor-northwick .northwick-brand-sub,.mobile-article-sponsors .sponsor-northwick .northwick-brand-sub{font-size:12px}.article-layout:has(.mobile-article-sponsors) .article-sidebar{display:none}
}

@media(max-width:720px){.news-card>p:not(.news-meta):not(.news-status),.guide-card p{font-size:15px;line-height:1.7}.card-top .eyebrow,.card-foot{font-size:12px}}

@media(max-width:720px){.mobile-article-sponsors .sponsor-know p{color:#d3dbe2}.mobile-article-sponsors .sponsor-northwick p{color:#465449}}

/* Use the extra width of mobile sponsor cards without changing desktop ads. */
.sponsor-mobile-panel{display:none}
@media(max-width:720px){
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:18px;align-items:center}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-card .ad-label,
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-card p,
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-card .sponsor-cta{grid-column:1/-1}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-know img{width:100%;max-width:160px;margin:24px 0}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-mobile-panel{display:flex;flex-direction:column;gap:6px;align-self:stretch;justify-content:center;border-left:1px solid #ffffff30;padding:0 0 0 16px;margin:18px 0;color:#fff}
.sponsor-panel-kicker{font:600 10px/1.4 monospace;letter-spacing:1px;color:#a9c9dc}
.sponsor-mobile-panel strong{font-size:17px;line-height:1.25;letter-spacing:-.4px}
.sponsor-panel-detail{font-size:12px;line-height:1.5;color:#c0c8ce}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-northwick .northwick-brand{margin:24px 0}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-northwick .northwick-wordmark{font-size:28px}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-northwick .northwick-brand-sub{font-size:10px;letter-spacing:2px}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-northwick .sponsor-mobile-panel{border-color:#20302c30;color:#20302c}
.sponsor-northwick .sponsor-panel-kicker{color:#665026}
.sponsor-northwick .sponsor-panel-detail{color:#465449}
}
@media(max-width:360px){
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-card{column-gap:12px;padding:18px}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-mobile-panel{padding-left:12px}
.sponsor-mobile-panel strong{font-size:15px}
.sponsor-panel-kicker{font-size:9px;letter-spacing:.6px}
:is(.mobile-directory-sponsors,.mobile-article-sponsors) .sponsor-northwick .northwick-wordmark{font-size:24px}
}

/* Article sharing: visible text controls, generous mobile tap targets. */
.article-share{margin:24px 0 30px;padding:18px 0;border-block:1px solid var(--line,#d7dedb)}
.share-label{display:block;font-size:13px;font-weight:700;margin-bottom:10px}
.share-actions{display:flex;flex-wrap:wrap;gap:8px}
.share-actions a,.share-actions button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 15px;border:1px solid #b6c3ca;border-radius:4px;background:transparent;color:inherit;font-family:inherit;font-size:14px;font-weight:600;line-height:1.4;text-decoration:none;cursor:pointer}
.share-actions a:hover,.share-actions button:hover{background:#edf1f5}
.share-actions :focus-visible{outline:3px solid #4482c5;outline-offset:3px}
.share-status{display:block;font-size:13px;margin-top:8px;line-height:1.5}
.share-status:empty{display:none}
.share-fallback{width:100%;margin-top:10px;font-size:14px;padding:10px}
.share-actions [hidden],.share-fallback[hidden]{display:none}