@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--bg:#101310;--ink:#f4f3ec;--muted:#a7ada5;--gold:#d8b96b;--line:#ffffff20;--paper:#f3f1e9;--green:#203d31}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'DM Sans',Arial,sans-serif}h1,h2,h3,.brand{font-family:Manrope,Arial,sans-serif;line-height:1.1;letter-spacing:-.045em}h1,h2,h3,p{margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:5px}img{display:block;max-width:100%}.section-wrap{max-width:1500px;padding:0 56px;margin:0 auto}.site-header{position:absolute;inset:0 0 auto;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px 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@media(min-width:1700px){.hero{height:850px}.hero-copy{margin-top:60px}.featured{margin-top:-70px}}@media(max-width:1100px){.section-wrap{padding-left:32px;padding-right:32px}.site-header{padding:24px 32px}.glass-nav{gap:18px;padding:11px 23px}.header-cta{font-size:10px;gap:12px}.hero-copy{margin-left:32px}.hero{height:720px}.hero-caption{right:32px}.featured-grid{gap:18px}.card-image{height:160px}.card-body h3{font-size:18px}.path-grid>a{padding:25px}.path-grid h3{font-size:29px}.article-layout{gap:40px;grid-template-columns:200px minmax(0,1fr)}.site-footer{padding-left:32px;padding-right:32px}}@media(max-width:760px){.site-header{padding:22px 22px}.brand{font-size:25px}.header-cta{display:none}.menu-toggle{display:flex;align-items:center;gap:10px;background:#ffffff12;border:1px solid #ffffff30;color:var(--ink);border-radius:30px;padding:9px 15px;font-size:12px}.glass-nav{display:none;position:absolute;top:78px;left:22px;right:22px;background:#18281ef5;padding:20px;border-radius:15px;flex-direction:column;align-items:start;gap:18px}.glass-nav.is-open{display:flex}.section-wrap{padding-left:22px;padding-right:22px}.hero{height:730px;min-height:620px;align-items:center}.hero-photo{object-position:62% center}.hero-shade{background:linear-gradient(90deg,#0a130cec,#0a130c50),linear-gradient(0deg,var(--bg),transparent 65%)}.hero-copy{margin:30px 22px 0}.hero h1{font-size:64px;margin-top:22px}.hero-intro{font-size:13px}.hero-actions{flex-wrap:wrap;gap:10px}.hero-tags{gap:7px;font-size:8px}.hero-tags span+span:before{margin-right:7px}.hero-caption{display:none}.featured{margin-top:-45px;padding-bottom:40px}.section-heading{align-items:start}.section-heading h2{font-size:27px}.section-heading>.text-link{white-space:nowrap;font-size:10px;align-self:end}.section-heading>.text-link span{margin-left:5px}.featured-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 15px}.card-image{height:155px}.card-number{font-size:85px;bottom:-17px}.card-body{padding:15px 0}.card-body h3{font-size:17px}.featured .card-body p{display:none}.card-body .eyebrow{font-size:8px}.read-link{margin-top:12px;padding-top:10px}.path-section{padding-top:40px;padding-bottom:45px}.path-section .section-heading{display:block}.path-section .section-heading>p{margin-top:20px}.path-grid{grid-template-columns:1fr}.path-grid>a{min-height:250px;padding:27px}.path-grid h3{font-size:32px;margin:17px 0}.path-grid p{max-width:80%}.statement{padding-top:45px;padding-bottom:45px}.statement h2{font-size:37px}.statement-bottom{display:block;margin-top:25px}.statement-bottom .button{margin-top:25px}.topics-section{padding-top:45px;padding-bottom:50px}.topic-grid{grid-template-columns:1fr}.topic-grid a{font-size:21px;padding:17px 0}.footer-top{grid-template-columns:1fr 1fr;gap:35px 20px}.footer-top>div:first-child{grid-column:1/-1}.site-footer{padding:40px 22px 20px}.footer-bottom{display:block;margin-top:35px}.footer-bottom>div{margin-top:14px;gap:17px}.footer-note{margin-top:22px;line-height:1.6}.listing-main,.page-main{padding-top:130px;padding-bottom:50px}.listing-heading h1,.page-heading h1{font-size:43px}.article-grid{grid-template-columns:1fr;gap:25px}.article-grid .card-image{height:230px}.topic-pills{margin:30px 0}.single-main{padding-top:120px}.article-hero{padding-bottom:35px}.breadcrumbs{margin-bottom:25px}.article-hero h1{font-size:39px;line-height:1.15}.article-deck{font-size:15px}.article-meta{font-size:10px;gap:8px 15px}.article-layout{display:block;padding-top:30px;padding-bottom:40px}.article-sidebar{margin-bottom:30px}.toc{position:static;padding-bottom:25px;border-bottom:1px solid #253b2928}.toc nav{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;font-size:11px;margin-top:18px}.sidebar-note{display:none}.article-content{font-size:15px;line-height:1.85}.article-content h2{font-size:26px;margin-top:35px}.related{padding-top:40px;padding-bottom:45px}.page-content{font-size:15px}.tool-panel{padding:25px}.tool-panel h2{font-size:26px}.tool-fields{grid-template-columns:1fr}.tool-panel output{font-size:24px}.admin-bar .site-header{top:46px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
.icon-arrow{display:inline-block;width:16px;height:16px;vertical-align:middle;flex-shrink:0}.little-star svg{display:block;width:38px;height:38px}

/* Keep article navigation and its callout in a single sticky flow. */
.sidebar-stack{position:sticky;top:28px;max-height:calc(100vh - 56px);overflow:auto;scrollbar-width:thin;padding-right:8px;overscroll-behavior:contain}
.sidebar-stack .toc{position:static;padding-bottom:28px}
.sidebar-stack .sidebar-note{position:static;margin:0;padding-top:25px}
/* Additional homepage sections. */
.home-problems{padding-top:40px;padding-bottom:65px}
.symptom-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.symptom-card{display:flex;flex-direction:column;padding:26px;border:1px solid var(--line);border-radius:9px;background:#18211a;transition:background .2s,border-color .2s}
.symptom-card:hover{background:#243229;border-color:#d8b96b70;color:var(--ink)}
.symptom-index{color:var(--gold);font-size:11px;letter-spacing:.14em}
.symptom-card h3{font-size:23px;font-weight:600;margin:26px 0 15px}
.symptom-card p{color:var(--muted);font-size:13px;line-height:1.6;flex:1}
.symptom-link{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:16px;margin-top:25px;font-size:11px}
.home-converter{background:var(--paper);color:#263928;padding:65px 0}
.converter-layout{display:grid;grid-template-columns:1fr 1.25fr;gap:70px;align-items:center}
.converter-copy .eyebrow{color:#827346}
.converter-copy h2{font-size:clamp(34px,4vw,53px);font-weight:550;margin:20px 0 24px}
.converter-copy>p:not(.eyebrow){font-size:14px;line-height:1.7;color:#5c6b56;max-width:400px;margin-bottom:28px}
.converter-copy .text-link{display:inline-flex;align-items:center;gap:14px;line-height:1.6}
.home-converter .tool-panel{background:#e7e8dc;margin:0;max-width:none;border:1px solid #334c2920}
.home-converter .tool-panel h3{font-size:25px;font-weight:600;margin-bottom:24px}
.home-converter .tool-panel a:hover,.converter-copy a:hover{color:#685620}
.home-latest{padding-top:65px;padding-bottom:55px;border-bottom:1px solid var(--line)}
.featured{margin-top:0;padding-top:65px}
@media(min-width:1700px){.featured{margin-top:0}}
@media(max-width:1100px){.symptom-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.converter-layout{gap:35px}.home-converter .tool-fields{grid-template-columns:1fr}}
@media(max-width:760px){.sidebar-stack{position:static;max-height:none;overflow:visible;padding-right:0;overscroll-behavior:auto}.sidebar-stack .toc{padding-bottom:25px}.home-problems{padding-top:25px;padding-bottom:40px}.home-problems .section-heading{display:block}.home-problems .section-heading>p{margin-top:16px}.symptom-grid{gap:12px}.symptom-card{padding:20px}.symptom-card h3{font-size:20px;margin:20px 0 13px}.symptom-card p{font-size:12px}.symptom-link{font-size:10px;gap:8px}.home-converter{padding:40px 0}.converter-layout{grid-template-columns:1fr;gap:30px}.converter-copy h2{font-size:38px}.home-converter .tool-panel{padding:24px}.home-latest{padding-top:40px;padding-bottom:40px}.home-latest .section-heading{display:block}.home-latest .section-heading>.text-link{display:inline-block;margin-top:18px}.featured{margin-top:0;padding-top:40px}}
@media(max-width:380px){.symptom-grid{grid-template-columns:1fr}}
/* Home-rich navigation: open, angular and organized around the water journey. */
.main-nav{display:flex;align-items:center;gap:28px;position:static;border:0;border-radius:0;background:none;font-size:13px;font-weight:600}
.main-nav>a,.header-links a{display:inline-flex;align-items:center;min-height:44px;position:relative;color:var(--ink)}
.main-nav>a:after,.header-links a:after{content:'';position:absolute;left:0;bottom:4px;width:100%;height:1px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .2s}
.main-nav>a:hover:after,.main-nav>a[aria-current]:after,.header-links a:hover:after{transform:scaleX(1)}
.header-links{display:flex;gap:24px;list-style:none;padding:0;margin:0}.header-links li{margin:0}
.mega-wrap{position:static}.mega-trigger{display:flex;align-items:center;gap:9px;background:transparent;color:var(--ink);font-size:13px;font-weight:600;border:0;border-radius:0;min-height:44px;padding:0}
.mega-trigger:hover,.mega-trigger[aria-expanded=true]{color:var(--gold)}.chevron{width:14px;height:14px;transition:transform .2s}.mega-trigger[aria-expanded=true] .chevron{transform:rotate(180deg)}
.mega-panel{position:absolute;top:100%;left:0;right:0;background:#f3f1e9;color:#243529;border-top:1px solid #c5c7b9;border-bottom:1px solid #bcc6b4;box-shadow:0 22px 35px #0005;border-radius:0;max-height:calc(100dvh - 145px);overflow:auto;overscroll-behavior:contain}
.mega-panel[hidden]{display:none!important}.mega-inner{max-width:1500px;margin:auto;padding:30px 56px 20px}.mega-heading{display:flex;justify-content:space-between;align-items:center;gap:30px;padding-bottom:25px;border-bottom:1px solid #30402c28}.mega-heading .eyebrow{color:#867142;margin-bottom:9px}.mega-heading h2{font-size:28px;font-weight:600}.mega-heading>div>p:last-child{font-size:12px;font-weight:400;color:#617159;margin-top:10px}.mega-start{display:flex;gap:24px;align-items:center;border:1px solid #294c2f;background:#263e2d;color:#fff!important;padding:13px 18px;font-size:12px;white-space:nowrap;transition:background .2s}.mega-start:hover{background:#415738}
.mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin-top:24px}.mega-column>h3{font-family:'DM Sans',Arial,sans-serif;letter-spacing:.12em;line-height:1.5;font-weight:700;text-transform:uppercase;font-size:10px;color:#66775e;margin-bottom:13px}.mega-item{display:flex;align-items:start;gap:13px;padding:13px 9px;margin:0 -9px;border:1px solid transparent;color:#243529!important;transition:background .2s,border-color .2s}.mega-item:hover{background:#e7e8dc;border-color:#24352922}.mega-symbol{display:grid;place-items:center;color:#71613b;width:34px;height:34px;flex-shrink:0;border:1px solid #897f5730;background:#e9e6d9}.mega-symbol svg{width:22px;height:22px}.mega-item>span:nth-child(2){flex:1}.mega-item strong{display:block;font-size:14px;line-height:1.4;font-weight:650}.mega-item small{display:block;font-size:11px;line-height:1.6;margin-top:5px;color:#63715c;font-weight:400}.mega-item>.icon-arrow{margin-top:8px;opacity:0;transform:translate(-3px,3px);transition:opacity .2s,transform .2s}.mega-item:hover>.icon-arrow,.mega-item:focus-visible>.icon-arrow{opacity:1;transform:none}.mega-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid #30402c28;margin-top:25px;padding-top:17px;font-size:11px;font-weight:400;color:#63715c}.mega-bottom a{display:flex;align-items:center;gap:12px;color:#29402e;font-weight:600}
.header-cta{height:48px;padding:0;border-radius:0;gap:0;background:var(--ink);color:#14291b;border:1px solid transparent;max-width:290px;transition:background .2s,border-color .2s,color .2s}
.header-cta .cta-label{display:block;background:none;border-radius:0;width:auto;height:auto;padding:0 18px;text-align:left;font-size:10px;font-weight:800;line-height:1.4;letter-spacing:.045em}
.header-cta .cta-icon{display:grid;place-items:center;background:none;border-radius:0;border-left:1px solid #203b2625;width:47px;height:46px;flex-shrink:0;padding:0}
.header-cta .cta-icon .icon-arrow{width:19px;height:19px;display:block;transition:transform .2s}.header-cta:hover{background:var(--gold);border-color:var(--gold);color:#14291b}.header-cta:hover .cta-icon .icon-arrow{transform:translate(2px,-2px)}.menu-toggle{border-radius:0}
.hr-no-sidebar .article-layout{grid-template-columns:minmax(0,820px);justify-content:center}.hr-no-sidebar .article-sidebar{display:none}
/* Premium topic pages, shared by hubs and core WordPress category archives. */
.hub-hero{padding-top:150px;padding-bottom:50px}.hub-hero .breadcrumbs{margin-bottom:28px}.hub-hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:70px;align-items:center}.hub-hero-copy h1{font-size:clamp(45px,5vw,70px);font-weight:600;line-height:1.06;letter-spacing:-.055em;margin:23px 0;overflow-wrap:anywhere}.hub-deck{color:#bcc5b4;font-size:17px;line-height:1.65;max-width:550px}.hub-hero-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:10px;color:#aab5a2;margin:25px 0}.hub-hero-meta span+span{border-left:1px solid var(--line);padding-left:14px}.hub-hero-image{height:330px;position:relative;overflow:hidden}.hub-hero-image>img{height:100%;width:100%;object-fit:cover}.hub-hero-image:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,#112116bb,transparent 70%)}.hub-image-label{position:absolute;left:22px;bottom:21px;z-index:1;display:flex;gap:11px;align-items:center;font-size:10px;color:#f3eee0;letter-spacing:.045em}.hub-image-label svg{height:21px;width:21px;color:var(--gold)}
.hub-topic-nav{display:flex;gap:28px;overflow:auto;white-space:nowrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);scrollbar-width:thin}.hub-topic-nav a{padding:20px 0;font-size:11px;position:relative;color:#afb9a7}.hub-topic-nav a[aria-current]{color:var(--gold)}.hub-topic-nav a[aria-current]:after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--gold)}
.hub-body{display:grid;grid-template-columns:220px minmax(0,1fr);gap:55px;padding-top:55px;padding-bottom:65px}.hub-route{position:sticky;top:28px}.hub-route h2{font-size:26px;font-weight:550;line-height:1.15;margin-top:15px}.hub-route ol{list-style:none;padding:0;margin:25px 0}.hub-route li{display:flex;gap:13px;align-items:start;padding:15px 0;border-top:1px solid var(--line);font-size:12px;color:#b9c4b1;line-height:1.6}.hub-route li span{color:var(--gold);font-size:10px;line-height:1.9}.hub-route>a{display:flex;align-items:center;justify-content:space-between;font-size:11px;font-weight:600;border:1px solid var(--line);padding:13px}.hub-lead{display:grid;grid-template-columns:1fr 1.15fr;background:var(--paper);color:#253629;overflow:hidden}.hub-lead-image{display:block;min-height:330px}.hub-lead-image img{height:100%;width:100%;object-fit:cover}.hub-lead-copy{padding:35px 30px;display:flex;flex-direction:column;justify-content:center}.hub-lead-copy .eyebrow{color:#7e6d43;font-size:9px;letter-spacing:.12em}.hub-lead-copy h2{font-size:30px;font-weight:600;line-height:1.2;margin:20px 0}.hub-lead-copy>p:not(.eyebrow){font-size:13px;line-height:1.7;color:#5a6953}.hub-read{display:flex;align-items:center;justify-content:space-between;font-size:11px;font-weight:700;border-top:1px solid #243e2628;margin-top:25px;padding-top:17px}.hub-lead a:hover{color:#647746}.hub-guide-heading{margin:40px 0 25px}.hub-guide-heading h2{font-size:28px;font-weight:550;margin-top:12px}.hub-guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.hub-guide-grid .card-image{height:210px}.hub-context{border-top:1px solid var(--line);margin-top:45px;padding-top:35px;color:#bfc9b7;font-size:14px;line-height:1.85}.hub-context>h2{font-size:28px;margin:15px 0 25px;color:var(--ink)}.hub-context h2:not(:first-child){color:var(--ink)}.hub-context a{color:var(--gold)}.hub-context p{margin-bottom:20px}.hub-context table th{background:#25392c}.hub-context table td,.hub-context table th{border-color:var(--line)}.hub-context blockquote{background:#213426}.hub-related{padding-top:55px;padding-bottom:70px;border-top:1px solid var(--line)}.hub-start{background:#233329;border:1px solid var(--line);padding:35px}.hub-start h2{font-size:34px;line-height:1.2;font-weight:550;margin:20px 0}.hub-start>p:not(.eyebrow){max-width:600px;color:#bfccb5;font-size:14px;line-height:1.75;margin-bottom:25px}.hub-pagination{margin-top:30px}.topic-hub .tool-panel{margin-top:0;max-width:none}.topic-hub .tool-panel .eyebrow{color:#847143}
@media(max-width:1100px){.main-nav{gap:19px}.mega-inner{padding-left:32px;padding-right:32px}.mega-grid{gap:25px}.hub-hero-grid{gap:35px}.hub-body{grid-template-columns:190px minmax(0,1fr);gap:30px}.hub-lead{grid-template-columns:1fr}.hub-lead-image{min-height:0;height:250px}.hub-lead-copy{padding:30px}.hub-hero-image{height:310px}}
@media(max-width:980px){.site-header{padding:20px 26px}.site-header .header-cta{display:none}.site-header .menu-toggle{display:flex;align-items:center;gap:10px;background:#ffffff10;color:var(--ink);border:1px solid #ffffff40;border-radius:0;padding:10px 15px;font-size:12px}.main-nav{display:none;position:absolute;left:20px;right:20px;top:80px;background:#16251b;border:1px solid #ffffff30;padding:15px 20px;border-radius:0;max-height:calc(100dvh - 150px);overflow:auto}.main-nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:6px}.main-nav>a{min-height:43px}.main-nav .header-links{flex-direction:column;gap:5px}.mega-trigger{width:100%;justify-content:space-between;min-height:43px}.mega-panel{position:static;margin:10px -10px;max-height:none;border:0;box-shadow:none}.mega-inner{padding:23px 18px}.mega-heading{display:block;padding-bottom:20px}.mega-heading h2{font-size:25px}.mega-heading>div>p:last-child{font-size:11px}.mega-start{margin-top:18px;display:inline-flex;font-size:11px;gap:15px;padding:10px 15px}.mega-grid{grid-template-columns:1fr;gap:20px;margin-top:20px}.mega-column>h3{margin-bottom:6px}.mega-item{padding:10px 9px}.mega-item>.icon-arrow{opacity:1}.mega-bottom{display:block}.mega-bottom>a{margin-top:12px}.mega-item small{font-size:11px}.mega-heading .eyebrow{font-size:9px}}
@media(max-width:760px){.hub-hero{padding-top:120px;padding-bottom:30px}.hub-hero-grid{grid-template-columns:1fr;gap:30px}.hub-hero-copy h1{font-size:48px;margin:18px 0}.hub-deck{font-size:15px}.hub-hero-meta{margin:20px 0;font-size:9px;gap:12px}.hub-hero-image{height:240px}.hub-topic-nav{gap:22px}.hub-topic-nav a{padding:17px 0;font-size:10px}.hub-body{grid-template-columns:1fr;gap:35px;padding-top:30px;padding-bottom:40px}.hub-sidebar{order:2}.hub-guides{order:1;min-width:0}.hub-route{position:static;border-top:1px solid var(--line);padding-top:30px}.hub-route h2{font-size:27px}.hub-route ol{margin:20px 0}.hub-lead-image{height:230px}.hub-lead-copy{padding:25px}.hub-lead-copy h2{font-size:28px;margin:16px 0}.hub-guide-grid{grid-template-columns:1fr;gap:20px}.hub-guide-grid .card-image{height:220px}.hub-context{padding-top:30px;margin-top:30px;font-size:14px}.hub-context>h2{font-size:25px}.hub-related{padding-top:40px;padding-bottom:40px}.hub-related .section-heading{display:block}.hub-related .text-link{display:inline-block;margin-top:18px}.hub-start{padding:25px}.hub-start h2{font-size:28px}.main-nav>a:after,.header-links a:after{width:45px}.hr-no-sidebar .article-layout{display:block}}
/* Keep the featured guide photo cropped to its layout, independent of intrinsic image height. */
.hub-lead-image{position:relative;min-height:360px}
.hub-lead-image img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media(max-width:1100px){.hub-lead-image{min-height:0;height:250px}}
@media(max-width:760px){.hub-lead-image{height:230px}}

/* Two compact mega menus, centered below the header. */
.mega-panel{left:50%;right:auto;transform:translateX(-50%);width:min(1040px,calc(100% - 80px));border:1px solid #bcc6b4;border-radius:10px;top:calc(100% - 4px)}
.mega-inner{padding:28px 32px 20px;max-width:none}
.mega-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:35px}
.mega-heading h2{font-size:26px}.mega-heading>div>p:last-child{max-width:550px}
@media(min-width:981px) and (max-width:1100px){.main-nav{gap:15px}.mega-panel{width:calc(100% - 48px)}.mega-inner{padding:25px}.mega-heading{gap:20px}.mega-start{padding:12px;font-size:11px;gap:12px}}
@media(max-width:980px){.mega-panel{position:static;left:auto;right:auto;top:auto;transform:none;width:auto;margin:10px -10px;border:1px solid #bcc6b4;border-radius:10px;max-height:none}.mega-inner{padding:23px 18px}.mega-grid{grid-template-columns:1fr;gap:20px}}
/* Household water schematic: SVG equipment with canvas flow. */
.home-water-flow{padding-top:70px;padding-bottom:70px;border-top:1px solid var(--line)}
.home-water-flow .section-heading h2{font-size:clamp(36px,4vw,56px);line-height:1.06}
.water-flow-board{position:relative;border:1px solid #718276;border-radius:10px;overflow:hidden;background:#f0f2eb;color:#233c34}
.flow-board-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:23px 30px;border-bottom:1px solid #526d5126;font-size:10px;font-weight:700;letter-spacing:.13em;color:#476255}
.flow-board-heading>span:first-child{display:flex;align-items:center;gap:10px}.flow-board-heading i{width:7px;height:7px;border-radius:50%;background:#368a85}
.flow-board-heading>span:last-child{font-size:11px;letter-spacing:0;font-weight:500}
.flow-drawing{position:relative;background-image:linear-gradient(#50765f10 1px,transparent 1px),linear-gradient(90deg,#50765f10 1px,transparent 1px),linear-gradient(#50765f09 1px,transparent 1px),linear-gradient(90deg,#50765f09 1px,transparent 1px);background-size:100px 100px,100px 100px,20px 20px,20px 20px}
.water-flow-schematic{display:block;width:100%;height:auto;position:relative;z-index:1;overflow:visible}.flow-mobile{display:none}.water-flow-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:2}
.pipe-outline{fill:none;stroke:#66796e;stroke-width:12;stroke-linejoin:round;stroke-linecap:round}.pipe-inner{fill:none;stroke:#dbe9df;stroke-width:8;stroke-linecap:round}.flow-route{fill:none;stroke:#2b8188;stroke-width:4;stroke-linecap:round}
.vessel-shell{stroke:#567069;stroke-width:1.5}.vessel-outline{fill:none;stroke:#57736a;stroke-width:1.5}.vessel-highlight{fill:none;stroke:#fff;stroke-width:3;stroke-linecap:round;opacity:.75}.vessel-waterline{fill:none;stroke:#bbefec;stroke-width:3}.vessel-media{fill:none;stroke:#e4f9ed;stroke-width:6;stroke-dasharray:3 7;opacity:.6}
.flow-equipment{cursor:pointer}.flow-equipment .vessel-outline,.flow-equipment .house-outline,.flow-equipment .tap-outline{transition:stroke .2s,filter .2s}.flow-equipment:hover .vessel-outline,.flow-equipment:focus-visible .vessel-outline{stroke:#188c88;stroke-width:3}.flow-equipment:hover .equipment-label{fill:#11766f}.equipment-label{font:600 18px Manrope,Arial,sans-serif;letter-spacing:-.04em;fill:#203d34}.equipment-detail{font:12px 'DM Sans',Arial,sans-serif;fill:#596e5f}.house-outline{fill:#e3eadf;stroke:#496b5a;stroke-width:3;stroke-linejoin:round}.tap-outline{fill:none;stroke:#597569;stroke-width:9;stroke-linecap:round;stroke-linejoin:round}.brine-pipe{fill:none;stroke:#8d9d83;stroke-width:4;stroke-dasharray:4 3}.branch-note{font:700 10px 'DM Sans',Arial,sans-serif;letter-spacing:.13em;fill:#75806a}.flow-test-point circle{fill:#e8d79a;stroke:#927738;stroke-width:2}.flow-test-point>path{stroke:#927738;stroke-width:1;fill:none}
.flow-board-legend{display:flex;flex-wrap:wrap;align-items:center;gap:24px;padding:21px 30px;background:#e4e9df;border-top:1px solid #526d5126;font-size:11px;color:#526553}.flow-board-legend>span{display:flex;align-items:center;gap:8px}.flow-board-legend>span:last-child{margin-left:auto}.legend-water{height:3px;width:23px;background:#2b8188}.legend-check{width:9px;height:9px;border-radius:50%;background:#ccb66b}
.water-flow-caption{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:18px}.water-flow-caption p{font-size:11px;line-height:1.7;color:var(--muted);max-width:820px}.flow-pause{flex-shrink:0;background:transparent;color:var(--ink);border:1px solid #ffffff40;border-radius:5px;padding:9px 14px;font-size:11px}.flow-pause:hover:not(:disabled){background:#2a4131}.flow-pause:disabled{color:var(--muted);cursor:default}.flow-pause[hidden]{display:none}
@media(max-width:760px){.home-water-flow{padding-top:45px;padding-bottom:45px}.home-water-flow .section-heading{display:block}.home-water-flow .section-heading>p{margin-top:18px}.flow-desktop{display:none}.flow-mobile{display:block}.flow-board-heading{padding:18px;font-size:8px;letter-spacing:.06em}.flow-board-heading>span:last-child{display:none}.flow-board-legend{padding:18px;gap:13px;font-size:10px}.flow-board-legend>span:last-child{margin-left:0;width:100%;font-size:9px}.flow-mobile .equipment-label{font-size:20px}.flow-mobile .equipment-detail{font-size:14px}.flow-mobile .branch-note{font-size:13px;letter-spacing:0}.water-flow-caption{display:block}.flow-pause{margin-top:14px}}

/* Individual editorial artwork on article pages. */
.article-feature{margin:36px 0 0;max-width:1040px}.article-feature img{width:100%;height:auto;max-height:520px;object-fit:cover;border-radius:10px;background:#e4e6dc}.article-feature figcaption{padding:10px 2px 0;font-size:11px;line-height:1.5;color:var(--muted)}
@media(max-width:760px){.article-feature{margin-top:25px}.article-feature img{max-height:none}}

.schematic-valve path{fill:#edf2e9;stroke:#5a7365;stroke-width:1.5;stroke-linejoin:round}.schematic-valve path+path{fill:none}.skip-link:not(:focus){opacity:0;pointer-events:none}

.water-flow-board[data-liquid-ready="1"] .tap-water-fallback{opacity:0}

/* Contextual article process figures: readable with or without animation. */
.article-feature figcaption a{color:inherit;text-decoration:underline;text-underline-offset:3px}
.article-content .hr-process{margin:38px 0;padding:24px;background:#e9eee5;border:1px solid #c6d2c1;border-radius:10px;max-width:100%;overflow:hidden}
.hr-process-heading{display:flex;align-items:start;justify-content:space-between;gap:18px}.article-content .hr-process h3{margin:4px 0 0;font-size:22px;line-height:1.2;color:#243f31}.article-content .hr-process .eyebrow{font-size:10px;margin:0;color:#657a55}
.hr-process-toggle{flex-shrink:0;background:#223c2e;color:#f8f5e9;border:1px solid #223c2e;border-radius:4px;padding:9px 12px;font-family:inherit;font-weight:600;font-size:11px;cursor:pointer;transition:background .2s}.hr-process-toggle:hover{background:#45694e}.hr-process-toggle:focus-visible{outline:3px solid #a88433;outline-offset:3px}
.hr-process-visual{position:relative;margin:15px 0 5px;background:linear-gradient(145deg,#f9faf4,#dde7dd);border-radius:8px}.hr-process canvas{display:block;width:100%;height:auto;aspect-ratio:760/310}.hr-process-lanes{position:absolute;inset:0;pointer-events:none;font-size:10px;font-weight:600;color:#334e3e}.hr-process-lanes span{position:absolute;left:5%;top:10%}.hr-process-lanes span+span{top:49%}
.article-content .hr-process-stages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));list-style:none;gap:20px;margin:22px 0 0;padding:0}.article-content .hr-process-stages li{margin:0;padding:14px 0 0;border-top:1px solid #bbcbbb;font-size:13px;line-height:1.55}.hr-process-number{display:block;color:#897433;font-size:10px;margin-bottom:6px;letter-spacing:.08em}.hr-process-stages strong{display:block;color:#24402e;font-size:14px}.article-content .hr-process-stages p{font-size:13px;line-height:1.55;margin:8px 0 0;color:#52654f}.article-content .hr-process-note{margin:22px 0 0;font-size:11px;line-height:1.6;color:#63735e}
.hr-process [hidden]{display:none!important}
@media(max-width:600px){.article-content .hr-process{padding:17px;margin:30px 0}.hr-process-heading{flex-direction:column;gap:12px}.article-content .hr-process h3{font-size:20px}.article-content .hr-process-stages{grid-template-columns:1fr;gap:10px;margin-top:12px}.article-content .hr-process-stages li{padding-top:10px}.hr-process-number{display:inline;margin-right:8px}.hr-process-stages strong{display:inline}.hr-process-lanes{font-size:8px}.article-content .hr-process-stages p{margin-top:5px}}

/* Tall editorial cards, inspired by the owner's reference. */
.latest-strip{max-width:none;width:100%;padding:64px max(24px,calc((100vw - 1328px)/2)) 66px;background:#f3f4ed;color:#12372c;border:0}.latest-strip-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:30px}.latest-strip-heading .eyebrow{margin:0 0 12px;color:#657559}.latest-strip-heading h2{margin:0;font-family:Georgia,serif;font-weight:400;font-size:clamp(30px,3.2vw,46px);line-height:1.08;letter-spacing:-.025em}.latest-strip-controls{display:flex;align-items:center;gap:12px;font-size:12px;flex-shrink:0;padding-bottom:5px}.latest-strip-controls>a{display:flex;align-items:center;gap:8px;margin-right:10px}.latest-strip-controls button{border:0;background:#12372c;color:#fff;border-radius:50%;width:40px;height:40px;display:grid;place-items:center;padding:0;cursor:pointer;transition:background .2s,transform .2s;font:inherit}.latest-strip-controls button svg,.strip-card-cta svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.latest-strip-controls button:hover{background:#345d45;transform:translateY(-2px)}.latest-strip-controls button:disabled{opacity:.35;background:transparent;color:#12372c;cursor:default;transform:none}.latest-strip-controls .strip-pause{width:auto;height:34px;border:1px solid #bac9b9;border-radius:4px;background:transparent;color:#304d3b;padding:0 10px;font-size:11px}.latest-strip-controls [hidden]{display:none}.latest-ten-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:none;padding:0 0 6px;margin-right:calc(-1 * max(24px,calc((100vw - 1328px)/2)))}.latest-ten-track::-webkit-scrollbar{display:none}.strip-card{flex:0 0 clamp(290px,27vw,370px);height:490px;scroll-snap-align:start;background:#163727;border:0;border-radius:22px;overflow:hidden;position:relative}.strip-card>a{display:block;position:relative;width:100%;height:100%;color:white;isolation:isolate}.strip-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s}.strip-card>a:after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,22,15,.02) 0%,rgba(6,22,15,.08) 25%,rgba(6,22,15,.7) 56%,rgba(6,22,15,.98) 100%);z-index:0}.strip-card-copy{position:absolute;left:28px;right:28px;bottom:28px;z-index:1}.strip-card small{display:block;font-size:9px;line-height:1.5;letter-spacing:.08em;text-transform:uppercase;color:#e0cb91;margin-bottom:10px}.strip-card h3{font-size:23px;line-height:1.15;letter-spacing:-.025em;font-weight:600;margin:0 0 12px}.strip-card p{font-size:13px;line-height:1.55;color:#e6ece1;margin:0 0 20px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.strip-card-cta{display:inline-flex;align-items:center;gap:20px;border-radius:4px;padding:12px 15px;color:#14372c;background:#f8f8f1;font-size:12px;font-weight:600;transition:background .2s,gap .2s}.strip-card:hover img{transform:scale(1.035)}.strip-card:hover .strip-card-cta{background:#dfeacb;gap:25px}.latest-ten-track:focus-visible,.strip-card>a:focus-visible,.latest-strip-controls button:focus-visible{outline:3px solid #a27a25;outline-offset:-3px}@media(max-width:768px){.latest-strip{padding-top:38px;padding-bottom:40px}.latest-strip-heading{align-items:start;flex-direction:column;gap:22px;margin-bottom:24px}.latest-strip-heading h2{font-size:34px}.strip-card{flex-basis:320px;height:470px}.latest-ten-track{gap:18px}.strip-card-copy{left:24px;right:24px;bottom:26px}}@media(max-width:380px){.strip-card{flex-basis:270px;height:465px}.strip-card h3{font-size:22px}.strip-card-copy{left:21px;right:21px}.latest-strip-controls{gap:8px}.latest-strip-controls>a{margin-right:0}}
@media(prefers-reduced-motion:reduce){.strip-card img,.strip-card-cta,.latest-strip-controls button{transition:none}.strip-card:hover img{transform:none}}

/* Numbered section rows fill as the reading position moves through each section. */
.toc .toc-title{font-size:19px;font-weight:700;letter-spacing:-.02em;margin:0 0 17px;color:#253d30;line-height:1.3}.toc #article-toc{display:block;margin:0;max-height:min(55vh,540px);overflow-y:auto;scrollbar-width:thin;position:relative;overscroll-behavior:contain}.toc #article-toc ol{padding:0;margin:0;list-style:none;display:flex;flex-direction:column;gap:9px}.toc #article-toc li{margin:0;padding:0}.toc #article-toc a{border:0;padding:12px 11px;display:flex;align-items:center;gap:11px;min-height:47px;background:#e8eae4;position:relative;isolation:isolate;color:#314036;line-height:1.4;overflow:hidden}.toc #article-toc a:before{content:'';position:absolute;inset:0;background:#cdd8c9;transform:scaleX(var(--toc-progress,0));transform-origin:left;transition:transform .16s linear;z-index:-1}.toc-number{font-size:19px;font-weight:650;line-height:1;width:18px;flex-shrink:0}.toc-label{font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.toc #article-toc a.is-current{color:#183b29;box-shadow:inset 3px 0 #42674a}.toc #article-toc a:hover{background:#dfe5d9}.toc #article-toc a:focus-visible{outline:2px solid #6a8158;outline-offset:-2px}.toc #article-toc a.is-complete:before{background:#d1d9cd}@media(max-width:900px){.toc #article-toc{max-height:310px}.toc-label{font-size:12px}.toc #article-toc a{padding:12px 15px}.toc .toc-title{font-size:20px}}@media(prefers-reduced-motion:reduce){.toc #article-toc a:before{transition:none}html{scroll-behavior:auto}}

/* Quiet, readable breadcrumbs for topic hubs and articles. */
.breadcrumbs{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 14px;font-size:11px;font-weight:400;line-height:1.7;color:#b5bcb3;letter-spacing:0;margin-bottom:28px}.breadcrumbs a{color:inherit;transition:color .18s ease}.breadcrumbs a:hover{color:var(--gold);text-decoration:underline;text-underline-offset:4px}.breadcrumbs [aria-hidden]{color:#e1e3dc}.breadcrumbs [aria-current="page"]{overflow-wrap:anywhere;min-width:0}.hub-hero .breadcrumbs{margin-bottom:28px}@media(max-width:600px){.breadcrumbs{gap:6px 10px;font-size:10px;line-height:1.8}}

/* Blend the journal rail with the hero and expose both viewport edges. */
.latest-strip{--rail-inset:max(24px,calc((100vw - 1328px)/2));background:var(--bg);color:var(--ink)}
.latest-strip-heading .eyebrow{color:var(--gold)}
.latest-strip-controls button{background:var(--ink);color:var(--green)}
.latest-strip-controls button:hover{background:var(--gold);color:var(--bg)}
.latest-strip-controls button:disabled{background:transparent;color:var(--ink)}
.latest-strip-controls .strip-pause{background:transparent;color:var(--ink);border-color:#ffffff40}
.latest-ten-track{margin-left:calc(-1 * var(--rail-inset));margin-right:calc(-1 * var(--rail-inset));padding-left:var(--rail-inset);padding-right:var(--rail-inset);scroll-padding-left:var(--rail-inset);scroll-padding-right:var(--rail-inset)}

/* Logo blends into the dark hero and footer. */
.brand{display:inline-flex;align-items:center;flex-shrink:0}
.brand .brand-logo{display:block;width:195px;height:auto;max-width:100%;object-fit:contain}
.site-footer .brand-logo{width:205px}
@media(max-width:768px){.brand .brand-logo{width:155px}.site-footer .brand-logo{width:180px}}
@media(max-width:380px){.site-header .brand-logo{width:140px}}

.brand-logo{mix-blend-mode:screen}
.site-header .brand,.site-footer .brand{mix-blend-mode:screen}
.site-header{mix-blend-mode:screen}
.site-header:has(.mega-trigger[aria-expanded="true"]),.site-header:has(.main-nav.is-open){mix-blend-mode:normal}