/* ECO PFAS / Water & engineering. A coherent editorial system. */
.edition-seven{--ink:#102d43;--blue:#1265a8;--cyan:#00a4d8;--link:#123e68;--line:#ced8df;background:#fff;color:var(--ink);font-size:18px}
.edition-seven .wrap{width:min(1360px,calc(100% - 96px))}
.edition-seven h1,.edition-seven h2,.edition-seven h3{font-family:'Source Sans 3',Arial,sans-serif;font-weight:500;letter-spacing:-.035em}
.edition-seven .topbar{background:#082638;color:#b8d9e9;font-size:10px;letter-spacing:.1em;padding:8px 0}
.edition-seven .site-header{background:#fff;border-bottom:1px solid #dce4e9;backdrop-filter:none}
.edition-seven .navwrap{min-height:84px;gap:28px}.edition-seven .brand>span{font-size:31px;letter-spacing:-.055em}.edition-seven .brand small{font-size:8px;letter-spacing:.17em}
.edition-seven .nav-contact{background:#103f60;padding:13px 19px}.edition-seven .nav-contact:hover{background:#1265a8}
.edition-seven .nav-group summary{font-size:15px}.edition-seven .nav-panel{border-top:3px solid #00a4d8;box-shadow:0 16px 32px #08263818}.edition-seven .nav-panel a{font-size:15px;white-space:normal}
.edition-seven a,.edition-seven button{transition:color .18s,background-color .18s,border-color .18s}
.edition-seven a:focus-visible,.edition-seven button:focus-visible,.edition-seven summary:focus-visible{outline:3px solid #00a4d8;outline-offset:5px}
.ed-button{display:inline-flex;align-items:center;justify-content:center;padding:15px 25px;background:#103f60;color:#fff;font-size:16px;font-weight:600;min-height:54px;line-height:1.35;border:1px solid #103f60;text-align:center;text-decoration:none}
.ed-button:hover{background:#1265a8;color:#fff;border-color:#1265a8}.ed-button.ed-bright{background:#9de9fa;color:#082638;border-color:#9de9fa}.ed-button.ed-bright:hover{background:white;color:#082638;border-color:white}
.ed-link{display:inline-block;color:#123e68;font-size:16px;font-weight:600;line-height:1.5;padding-bottom:5px;border-bottom:1px solid #1265a8;text-decoration:none}.ed-link:hover{border-bottom-color:#00a4d8;color:#1265a8}
.ed-actions{display:flex;align-items:center;gap:30px;flex-wrap:wrap}.ed-hero-link{display:inline-block;color:#e5f6ff;font-size:16px;border-bottom:1px solid #729aaf;padding:5px 0}.ed-hero-link:hover{color:white;border-color:#9de9fa}
/* One photographic first impression; no competing cards or ornaments. */
.ed-hero{position:relative;isolation:isolate;min-height:680px;background:#082638;color:white;overflow:hidden}
.ed-hero-water{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;filter:saturate(.55)}
.ed-hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,29,46,.94) 0%,rgba(5,29,46,.77) 50%,rgba(5,29,46,.25) 100%);z-index:-1}
.ed-hero-inner{padding-top:83px;padding-bottom:50px;min-height:680px;display:flex;flex-direction:column;justify-content:space-between;gap:58px}
.ed-hero h1{font-size:clamp(58px,6.75vw,104px);line-height:1.01;font-weight:500;margin:0;max-width:1220px;letter-spacing:-.045em;color:white}
.ed-hero h1 span{color:#a9eaff}.ed-hero-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:50px}.ed-hero-bottom>div:first-child{max-width:660px}.ed-hero-bottom p{max-width:590px;font-size:21px;line-height:1.5;margin:0 0 28px;color:#eff8fc}
.ed-hero-signature{max-width:285px;flex-shrink:0;padding-left:24px;border-left:1px solid #8cb0c4;color:#e0f0f7;font-size:14px;line-height:1.5}.ed-hero-signature img{object-fit:contain;width:155px;height:auto;max-height:50px;margin-bottom:16px;background:#fff;padding:9px 10px}.ed-hero-signature span{display:block}
.ed-routebar{background:#f4f7f8;border-bottom:1px solid var(--line)}.ed-routebar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;overflow:auto}.ed-routebar a{padding:22px 0;white-space:nowrap;font-size:15px;font-weight:600;color:#123e68;border-bottom:3px solid transparent}.ed-routebar a:hover{border-bottom-color:#00a4d8}
.ed-section-heading{display:block;margin-bottom:42px}.ed-section-heading h2{font-size:clamp(36px,4.25vw,62px);line-height:1.06;margin:0 0 22px;max-width:1050px}.ed-section-heading h2 span{color:#1265a8}.ed-section-heading>p{font-size:19px;line-height:1.65;max-width:760px;color:#4b6575;margin:0}
.ed-benefits-section{padding-top:94px;padding-bottom:94px}.ed-benefits-layout{display:grid;grid-template-columns:1.08fr 1fr;gap:64px;align-items:stretch}
.ed-benefit{border-top:1px solid #c8d5dd}.ed-benefit:last-child{border-bottom:1px solid #c8d5dd}.ed-benefit summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:27px 0;font-size:27px;line-height:1.2;color:#19384b;letter-spacing:-.02em}.ed-benefit summary::-webkit-details-marker{display:none}.ed-benefit[open] summary{color:#1265a8;font-weight:600;padding-bottom:18px}.ed-toggle{width:22px;height:22px;position:relative;flex-shrink:0}.ed-toggle:before,.ed-toggle:after{content:'';position:absolute;background:currentColor;inset:10px 2px auto;height:1.5px}.ed-toggle:after{transform:rotate(90deg)}.ed-benefit[open] .ed-toggle:after{transform:none}
.ed-benefit-body{padding:0 35px 28px 0}.ed-benefit-body p{font-size:18px;line-height:1.65;margin-bottom:20px;color:#4b6575}.ed-benefit-visual{position:relative;isolation:isolate;overflow:hidden;margin:0;background:#f0f4f5;display:flex;align-items:center;justify-content:center;min-height:490px;padding:28px 28px 60px}.ed-benefit-visual>img{width:100%;height:410px;object-fit:contain;z-index:1;position:relative;mix-blend-mode:multiply}.ed-benefit-visual figcaption{position:absolute;bottom:20px;left:24px;right:24px;color:#4b6575;font-size:13px;line-height:1.4;z-index:2}.ed-product-word{position:absolute;right:0;bottom:15px;font-size:280px;line-height:.9;font-weight:600;color:#e0e9ed;letter-spacing:-.09em;z-index:0}
/* The real equipment anchors the technical section. */
.ed-tech{background:#082638;color:#fff;padding:76px 0;border-top:6px solid #00a4d8}.ed-tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:76px;align-items:center}.ed-product-stage{background:#fff;min-height:620px;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:32px;position:relative}.ed-product-stage img{width:100%;height:530px;object-fit:contain}.ed-product-stage>span{display:block;font-size:13px;color:#4b6575;margin-top:20px;align-self:flex-start;letter-spacing:.02em}
.ed-tech-copy h2{font-size:clamp(39px,4vw,58px);line-height:1.07;margin-bottom:30px;color:white}.ed-tech-copy h2 span{color:#a9eaff}.ed-tech-copy>p{color:#d1e3ed;line-height:1.65;font-size:18px}.ed-spec{margin:28px 0 32px}.ed-spec>div{border-top:1px solid #446070;padding:21px 0;display:block}.ed-spec dt{font-size:25px;font-weight:500;margin:0 0 7px;color:#fff}.ed-spec dd{margin:0;font-size:15px;line-height:1.5;color:#b9d0dc}.ed-tech-copy>.ed-hero-link{display:table;margin-top:22px}
.ed-scope{padding-top:94px;padding-bottom:94px}.ed-tabs{display:flex;border-bottom:1px solid #9eb5c3;margin-bottom:35px;gap:0}.ed-tabs button{flex:1;padding:19px 16px;border:0;border-bottom:4px solid transparent;background:#fff;color:#456171;font-size:22px;text-align:left;cursor:pointer}.ed-tabs button:first-child{padding-left:0}.ed-tabs button[aria-selected=true]{color:#1265a8;border-bottom-color:#1265a8;font-weight:600}.ed-tabs button:hover{background:#f4f7f8;color:#123e68}
.ed-scope-panel{display:grid;grid-template-columns:1.2fr 1fr;gap:52px;align-items:center;margin-bottom:40px}.ed-scope-panel[hidden]{display:none}.ed-scope-panel figure{margin:0;overflow:hidden}.ed-scope-panel img{height:400px;width:100%;object-fit:cover}.ed-scope-copy h3{font-size:42px;margin:0 0 18px;line-height:1.1}.ed-scope-copy .ed-deck{font-size:23px;color:#123e68;line-height:1.35}.ed-scope-copy>p{color:#4b6575;font-size:18px;line-height:1.6}.ed-scope-copy>.ed-link{display:table;margin-top:20px}
.ed-decision{background:#1467a5;color:#fff;padding:66px 0}.ed-decision h2{font-size:clamp(35px,3.8vw,56px);line-height:1.1;color:#fff;margin-bottom:42px}.ed-decision-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.ed-decision-links a{color:#fff;border-top:1px solid #88bce0;padding-top:24px;padding-bottom:10px}.ed-decision-links strong{display:block;font-size:27px;line-height:1.2;font-weight:500;letter-spacing:-.02em;margin-bottom:13px}.ed-decision-links span{font-size:16px;color:#e0f0fc}.ed-decision-links a:hover strong{text-decoration:underline;text-underline-offset:6px}
.ed-project{padding-top:94px;padding-bottom:94px}.ed-project-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:stretch}.ed-project-grid figure{margin:0;position:relative;min-height:530px}.ed-project-grid figure img{height:100%;width:100%;object-fit:cover}.ed-project-grid figcaption{position:absolute;bottom:0;left:0;right:0;padding:24px;background:#082638df;color:#fff;font-size:14px;line-height:1.5}.ed-project-steps>div{padding:24px 0;border-top:1px solid #c8d5dd}.ed-project-steps h3{font-size:29px;margin-bottom:12px;line-height:1.2}.ed-project-steps p{font-size:17px;margin-bottom:13px;color:#4b6575}.ed-lifecycle{display:flex;align-items:flex-start;gap:55px;padding:40px;background:#082638;color:#fff;margin-top:40px;border-left:5px solid #00a4d8}.ed-lifecycle>div{flex:1}.ed-lifecycle h3{font-size:31px;line-height:1.2;color:#fff;margin-bottom:20px}.ed-lifecycle p{font-size:17px;line-height:1.65;color:#d0e5ef;margin:0}.ed-lifecycle>.ed-button{background:#fff;color:#123e68;flex-shrink:0;border-color:#fff;margin-top:7px}
.ed-knowledge{padding-top:0;padding-bottom:90px}.ed-knowledge .knowledge-grid{gap:48px}.ed-knowledge .feature-story img{height:360px;width:100%;object-fit:cover}.ed-knowledge .feature-story h3{font-size:34px;line-height:1.15}.ed-knowledge .knowledge-grid a{color:#123e68}.ed-all-knowledge{margin-top:30px}
.ed-contact{background:#082638;padding:76px 0;color:#fff;position:relative;overflow:hidden}.ed-contact h2{font-size:clamp(42px,5vw,72px);line-height:1.05;color:#fff;margin-bottom:28px}.ed-contact h2 span{color:#a9eaff}.ed-contact p{font-size:20px;line-height:1.6;max-width:670px;color:#d3e7f2;margin-bottom:30px}.ed-contact .ed-actions>a:not(.ed-button){color:#fff;border-bottom:1px solid #6e99b2;padding-bottom:5px}
.edition-seven footer{background:#061d2c;padding-top:55px}.edition-seven .footer-bottom{border-top-color:#294858}.edition-seven .footer-grid h2{font-size:16px;font-weight:600;letter-spacing:0}.edition-seven .footer-grid a{font-size:15px}
/* The same editorial language carries through the entire knowledge base. */
.document-edition .breadcrumb{font-size:13px;padding-top:24px;padding-bottom:22px;color:#5c7482}
.ed-document-opening{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center;margin-bottom:64px;padding-top:18px;padding-bottom:44px;border-bottom:1px solid #ced8df}
.ed-document-heading h1{font-size:clamp(38px,4.7vw,68px);line-height:1.06;margin:0 0 24px;letter-spacing:-.035em;color:#102d43}.ed-document-heading .lead{font-size:20px;line-height:1.55;max-width:650px;margin:0;color:#4b6575}.ed-document-photo{margin:0;height:365px;background:#f1f5f6;overflow:hidden}.ed-document-photo img{width:100%;height:100%;object-fit:cover}.ed-document-photo.contain img{object-fit:contain;padding:20px}
.document-edition .pageintro{padding-top:30px;border:0;margin-bottom:30px}.document-edition .pageintro h1{font-size:clamp(40px,4.7vw,68px);line-height:1.08}.document-edition .legacy-content h2{font-size:clamp(28px,2.8vw,40px);line-height:1.15;letter-spacing:-.025em}.document-edition .legacy-content p,.document-edition .legacy-content li{font-size:17px;line-height:1.7}.document-edition .doc-sidebar{border-left:1px solid #ced8df;padding-left:25px}.document-edition .page-toc a{font-size:15px;line-height:1.5;text-decoration:none;padding:10px 0;border-bottom:1px solid #e0e8ed}.document-edition .doc-sidebar .side-cta{background:#082638;color:white;padding:22px;margin-top:25px}.document-edition .doc-sidebar .side-cta h3{color:#fff;font-size:26px}.document-edition .doc-sidebar .side-cta p{color:#d3e7f2}.document-edition .doc-sidebar .side-cta .button{background:#a9eaff;color:#082638;border:0;padding:12px 16px;font-size:15px;gap:0}
.document-edition .solution-index{gap:42px}.document-edition .solution-index>a{border-top:3px solid #1265a8;padding-top:24px}.document-edition .solution-index .sector-image{margin-bottom:24px}.document-edition .resource-row h2{font-size:29px;line-height:1.15}.document-edition .resource-row p{font-size:16px;line-height:1.5}
@media(min-width:1600px){.ed-hero-inner{min-height:740px}.ed-hero{min-height:740px}}
@media(max-width:1100px){.edition-seven .wrap{width:calc(100% - 60px)}.ed-hero h1{font-size:76px}.ed-hero-inner{padding-top:70px;min-height:650px}.ed-hero{min-height:650px}.ed-benefits-layout,.ed-tech-grid,.ed-project-grid{gap:35px}.ed-benefit summary{font-size:24px}.ed-benefit-visual{padding:20px;min-height:460px}.ed-benefit-visual>img{height:360px}.ed-product-stage{min-height:550px;padding:20px}.ed-product-stage img{height:450px}.ed-tech-copy h2{font-size:42px}.ed-scope-panel{gap:32px}.ed-scope-panel img{height:360px}.ed-lifecycle{padding:30px;gap:30px}.ed-lifecycle>.ed-button{max-width:210px}.ed-document-opening{gap:30px}.ed-document-photo{height:330px}}
@media(max-width:800px){.ed-hero h1{font-size:64px}.ed-hero-signature{display:none}.ed-hero-bottom p{font-size:19px}.ed-hero-inner{min-height:610px;padding-top:65px}.ed-hero{min-height:610px}.ed-benefits-section,.ed-scope,.ed-project{padding-top:65px;padding-bottom:65px}.ed-section-heading h2{font-size:44px}.ed-benefits-layout{grid-template-columns:1fr;gap:30px}.ed-benefit-visual{min-height:330px}.ed-benefit-visual>img{height:300px}.ed-tech-grid{grid-template-columns:1fr 1fr;gap:26px}.ed-product-stage{min-height:450px}.ed-product-stage img{height:340px}.ed-tech-copy h2{font-size:36px}.ed-tech-copy>p{font-size:16px}.ed-tabs button{font-size:18px;padding:16px 10px}.ed-scope-panel{grid-template-columns:1fr;gap:28px}.ed-scope-panel img{height:380px}.ed-scope-copy{max-width:650px}.ed-decision-links{gap:25px}.ed-decision-links strong{font-size:24px}.ed-project-grid{gap:30px}.ed-lifecycle{display:block}.ed-lifecycle>.ed-button{margin-top:25px;max-width:none}.ed-document-opening{grid-template-columns:1fr;gap:30px}.ed-document-photo{height:340px}.ed-document-heading h1{font-size:48px}.document-edition .doc-sidebar{padding-left:15px}}
@media(max-width:600px){.edition-seven .wrap{width:calc(100% - 36px)}.edition-seven .topbar{font-size:8px}.edition-seven .navwrap{gap:14px;min-height:75px}.edition-seven .brand>span{font-size:26px}.edition-seven .brand small{font-size:7px}.ed-hero-inner{min-height:620px;padding-top:60px;padding-bottom:40px;gap:50px}.ed-hero{min-height:620px}.ed-hero:after{background:linear-gradient(90deg,#051d2ef2,#051d2e91)}.ed-hero h1{font-size:clamp(43px,10.6vw,62px);line-height:1.05}.ed-hero-bottom p{font-size:18px;max-width:100%}.ed-actions{gap:22px}.ed-button{padding:14px 20px;font-size:15px}.ed-hero-link{font-size:15px}.ed-routebar .wrap{gap:26px}.ed-routebar a{font-size:14px;padding:18px 0}.ed-section-heading{margin-bottom:30px}.ed-section-heading h2{font-size:38px}.ed-section-heading>p{font-size:17px}.ed-benefits-section,.ed-scope,.ed-project{padding-top:52px;padding-bottom:52px}.ed-benefit summary{font-size:24px;padding:23px 0}.ed-benefit-body{padding-right:0}.ed-benefit-body p{font-size:17px}.ed-benefit-visual{padding-bottom:60px;min-height:340px}.ed-benefit-visual>img{height:270px}.ed-tech{padding:42px 0}.ed-tech-grid{grid-template-columns:1fr;gap:35px}.ed-product-stage{min-height:400px}.ed-product-stage img{height:350px}.ed-tech-copy h2{font-size:42px}.ed-tech-copy>p{font-size:17px}.ed-tabs{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.ed-tabs button{padding:15px 0;font-size:18px}.ed-scope-panel img{height:260px}.ed-scope-copy h3{font-size:35px}.ed-scope-copy .ed-deck{font-size:21px}.ed-scope-copy>p{font-size:17px}.ed-decision{padding:45px 0}.ed-decision h2{font-size:37px}.ed-decision-links{grid-template-columns:1fr;gap:18px}.ed-decision-links a{padding-top:20px}.ed-decision-links strong{font-size:27px}.ed-project-grid{grid-template-columns:1fr;gap:25px}.ed-project-grid figure{min-height:0;height:330px}.ed-project-steps h3{font-size:28px}.ed-lifecycle{padding:26px 23px;margin-top:22px}.ed-lifecycle h3{font-size:28px}.ed-lifecycle p{font-size:16px}.ed-knowledge{padding-bottom:55px}.ed-knowledge .feature-story img{height:260px}.ed-knowledge .feature-story h3{font-size:29px}.ed-contact{padding:52px 0}.ed-contact h2{font-size:44px}.ed-contact p{font-size:18px}.ed-document-heading h1{font-size:42px}.ed-document-heading .lead{font-size:18px}.ed-document-photo{height:280px}.ed-document-opening{margin-bottom:38px;padding-bottom:30px}.document-edition .doc-sidebar{border-left:0;padding-left:0}.document-edition .solution-index{gap:20px}.document-edition .resource-row h2{font-size:23px}.document-edition .resource-row p{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.edition-seven *{transition:none!important;animation:none!important}}
@media print{.ed-hero,.ed-tech,.ed-decision,.ed-contact,.ed-lifecycle{background:white!important;color:#102d43!important}.ed-hero-water,.ed-routebar{display:none}.ed-hero h1,.ed-tech h2,.ed-contact h2,.ed-decision h2{color:#102d43!important}.ed-scope-panel[hidden]{display:grid}.ed-benefit:not([open])>.ed-benefit-body{display:block}.edition-seven .wrap{width:100%}}