:root{--navy:#102f57;--ink:#18243a;--blue:#176fd1;--muted:#53647a;--line:#d6e0e8;--surface:#f1f6fa;--green:#147b46;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);background:#fff;font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;min-width:320px}a{color:inherit}button{font:inherit;cursor:pointer}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:inherit;color:var(--navy);font-weight:700;letter-spacing:-.045em;text-wrap:balance}h1{font-size:clamp(50px,5.3vw,82px);line-height:1.04}h2{font-size:clamp(36px,3.4vw,54px);line-height:1.12}h3{font-size:28px;line-height:1.2;letter-spacing:-.035em}p{font-size:17px;line-height:1.7;color:var(--muted)}.wrap{width:min(1320px,calc(100% - 96px));margin-inline:auto}.skip{position:absolute;top:-100px;left:16px;z-index:100;padding:14px;background:white}.skip:focus{top:10px}.site-header{border-bottom:1px solid #eef2f6;background:#fff}.header-inner{min-height:113px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo{width:142px;height:92px;object-fit:contain;display:block}.header-inner nav{display:flex;align-items:center;gap:32px}.header-inner nav>a:not(.button){text-decoration:none;font-size:14px;color:var(--navy)}.header-inner nav>a:hover{text-decoration:underline}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:17px 23px;min-height:54px;border:1px solid transparent;border-radius:8px;background:var(--blue);color:#fff;font-size:15px;font-weight:650;text-decoration:none;line-height:1.25;transition:background .15s,transform 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var(--line)}.breadcrumb{display:inline-block;font-size:14px;color:var(--blue);margin-bottom:30px;text-decoration:none}.article-hero h1{max-width:940px;font-size:clamp(44px,5vw,70px)}.article-hero p{max-width:730px;margin-top:25px;font-size:20px}.article-body{max-width:800px;margin-inline:auto;padding-block:65px}.article-body h2{font-size:37px;margin:42px 0 20px}.article-body h2:first-child{margin-top:0}.article-body p+p{margin-top:17px}.article-body ul{padding-left:23px;color:var(--muted);font-size:17px;line-height:1.8}.article-related{padding-top:38px;border-top:1px solid var(--line);margin-top:45px}.article-related a{color:var(--blue)}.review-notice{position:fixed;bottom:12px;right:14px;z-index:30;background:#fff;color:var(--navy);border:1px solid var(--line);border-radius:6px;box-shadow:0 3px 15px #102f5715;padding:8px 12px;font-size:12px}.review-notice a{color:var(--blue)}
@media(min-width:1450px){.hero{padding-block:44px 50px}.hero-photo{height:598px}.hero-copy h1{font-size:82px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.header-inner nav{gap:22px}.hero{gap:32px}.hero-photo{height:540px}.hero h1{font-size:60px}.hero-copy>p{font-size:17px}.actions{gap:18px}.contact-grid{gap:40px}.contact-phone{padding-left:35px}.faq-grid{gap:40px}.concern-panel{padding:32px}.footer-inner{gap:22px}}
@media(max-width:900px){html{scroll-padding-top:20px}.wrap{width:calc(100% - 40px)}.header-inner{min-height:90px;flex-wrap:wrap;gap:0}.logo{width:116px;height:76px}.menu-toggle{display:block}.header-inner nav{display:none;width:100%;padding:14px 0 24px;flex-direction:column;align-items:stretch;gap:20px}.header-inner nav.is-open{display:flex}.header-inner nav>a:not(.button){padding-block:4px;font-size:16px}.hero{grid-template-columns:1fr;gap:30px;padding-block:34px 34px}.hero h1{font-size:clamp(45px,10vw,64px);line-height:1.06;max-width:630px}.hero-copy>p{margin-top:20px;font-size:17px}.actions{margin-top:24px;gap:18px}.button{font-size:15px;padding:16px 19px}.phone-link{font-size:16px}.hero-photo{height:360px}.hero-photo img{object-position:80% 55%}.strip-inner{padding-block:20px;gap:14px;grid-template-columns:1fr}.strip-inner span{border:0;justify-content:flex-start;font-size:14px}.strip-inner .icon{width:23px;height:23px}.section{padding-block:55px}.section-heading{margin-bottom:28px}.section-heading p{font-size:16px}.concern-grid{grid-template-columns:1fr;gap:22px}.concern-list{display:grid;grid-template-columns:1fr 1fr;gap:8px}.concern-list button{font-family:inherit;font-size:14px;font-weight:600;line-height:1.3;border:1px solid var(--line);border-radius:6px;padding:17px 14px;min-height:63px}.concern-panel{padding:30px 22px;min-height:366px}.concern-panel h3{font-size:28px}.concern-panel p{font-size:16px}.safety-note{font-size:14px}.steps{grid-template-columns:1fr;gap:14px;margin-top:30px}.step{padding:24px}.step h3{margin-block:12px 10px}.treatments .section-heading{display:block}.treatments .section-heading p{margin-top:20px}.treatment-links a{grid-template-columns:1fr auto;gap:12px;padding-block:24px}.treatment-links p{grid-column:1;grid-row:2}.treatment-links .arrow{grid-column:2;grid-row:1/3}.treatment-links h3{font-size:28px}.faq-grid{grid-template-columns:1fr;gap:30px}.faq h2{max-width:400px}.contact-grid{grid-template-columns:1fr;gap:35px}.contact-phone{padding:28px 0 0;border-left:0;border-top:1px solid #bfd3e3}.contact-phone p{margin-top:0}.contact-phone a{font-size:37px}.footer-inner{flex-wrap:wrap;justify-content:flex-start;gap:24px}.footer-inner nav{gap:17px}.footer-inner small{max-width:none;width:100%}.article-hero{padding-block:35px 45px}.article-hero p{font-size:18px}.article-body{padding-block:40px}.article-body h2{font-size:31px}.review-notice{bottom:6px;right:6px;padding:6px 8px;font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* Water guide: useful long-form reading, with clear sources and real book imagery. */
.everyday .eyebrow,.learning-home .eyebrow{margin-bottom:16px}
.everyday-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.everyday-grid>a{display:block;text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:25px}
.everyday-grid img{display:block;width:100%;height:300px;object-fit:cover;border-radius:12px;margin-bottom:24px}
.everyday-grid h3{font-size:25px;margin-bottom:12px}
.everyday-grid p{font-size:16px}
.everyday-grid a:hover h3,.guide-card:hover h3{color:var(--blue)}
.image-note{font-size:13px;margin-top:22px;text-align:center}
.learning-home{background:var(--surface)}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
#local-water .guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.guide-card{display:flex;flex-direction:column;align-items:flex-start;text-decoration:none;background:white;border:1px solid var(--line);padding:32px;border-radius:10px}
.guide-card .eyebrow{font-size:12px;line-height:1.4;letter-spacing:.07em;color:var(--muted);margin-bottom:20px}
.guide-card h3{font-size:27px;margin-bottom:16px;text-wrap:initial}
.guide-card p{font-size:16px;line-height:1.6;margin-bottom:22px}
.guide-card .text-link{margin-top:auto}
.guide-all{display:flex;width:fit-content;margin:32px auto 0}
.guide-jumps{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.guide-jumps a{padding:12px 18px;background:var(--surface);border:1px solid var(--line);border-radius:7px;text-decoration:none;font-size:15px;color:var(--navy)}
.article-hero .article-meta{font-size:14px;line-height:1.5;color:var(--muted);margin-top:18px}
.article-body .quick-answer{margin:0 0 36px;padding:28px 32px;border-left:4px solid var(--blue);background:var(--surface);border-radius:0 8px 8px 0}
.quick-answer .eyebrow{margin-bottom:12px;font-size:13px;letter-spacing:.06em}
.quick-answer p{font-size:19px;line-height:1.65;color:var(--navy)}
.article-body .quick-answer:not(:first-child){margin-top:42px}
.source-ref{font-size:13px;color:var(--blue);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
.article-toc{display:grid;grid-template-columns:1fr 1fr;gap:14px 28px;border-block:1px solid var(--line);padding-block:24px;margin-bottom:38px;font-size:15px;line-height:1.5}
.article-toc strong{grid-column:1/-1;color:var(--navy)}
.article-toc a,.article-body p>a,.guide-list a{color:var(--blue);text-underline-offset:3px}
.guide-section{scroll-margin-top:24px}
.guide-list li{padding-left:4px;margin-block:10px}
.table-scroll{max-width:100%;overflow-x:auto;margin-block:24px;border:1px solid var(--line);border-radius:8px}
.table-scroll table{border-collapse:collapse;width:100%;font-size:16px;line-height:1.6;text-align:left}
.table-scroll th,.table-scroll td{padding:17px 20px;vertical-align:top;border-bottom:1px solid var(--line)}
.table-scroll th{color:var(--navy);font-weight:650}
.table-scroll thead{background:var(--surface)}
.table-scroll tbody th{width:30%}
.table-scroll tr:last-child th,.table-scroll tr:last-child td{border-bottom:0}
.table-scroll a{color:var(--blue);text-underline-offset:3px}
.process-list{list-style:none;counter-reset:process;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.process-list li{counter-increment:process;padding:24px;border:1px solid var(--line);border-radius:8px}
.process-list li:before{content:'0' counter(process);color:var(--blue);display:block;font-size:14px;margin-bottom:12px}
.process-list strong{display:block;font-size:20px;letter-spacing:-.025em;color:var(--navy);margin-bottom:12px}
.process-list span{font-size:16px;line-height:1.65;color:var(--muted)}
.guide-photo{margin:0 0 32px}
.guide-photo img{width:100%;height:320px;object-fit:cover;display:block;border-radius:10px}
.guide-photo figcaption{font-size:13px;line-height:1.5;color:var(--muted);margin-top:10px}
.article-faq{margin-top:42px}
.article-sources{margin-top:48px;padding-top:10px;border-top:1px solid var(--line)}
.article-sources h2{font-size:25px;margin-top:24px}
.article-sources p{font-size:14px;line-height:1.6}
.article-sources ol{padding-left:23px;color:var(--muted);font-size:14px;line-height:1.6}
.article-sources li{margin-top:10px;padding-left:5px}
.article-sources a{color:var(--blue);text-underline-offset:3px;overflow-wrap:anywhere}
@media(max-width:1100px){.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.header-inner nav{gap:20px}.everyday-grid{gap:20px}.everyday-grid img{height:235px}.guide-card{padding:26px}}
@media(max-width:700px){.guide-grid,#local-water .guide-grid,.everyday-grid{grid-template-columns:1fr}.everyday-grid{gap:30px}.everyday-grid img{height:260px}.guide-card{padding:25px}.guide-card h3{font-size:25px}.article-body .quick-answer{padding:24px}.quick-answer p{font-size:17px}.article-toc{grid-template-columns:1fr}.process-list{grid-template-columns:1fr}.table-scroll th,.table-scroll td{padding:14px 12px;font-size:14px}.table-scroll table{min-width:490px}.table-scroll{margin-right:0}.guide-photo img{height:260px}.article-body h2{font-size:29px;line-height:1.2}.article-body p{font-size:16px}.article-body .article-sources h2{font-size:24px}.review-notice{max-width:calc(100% - 12px);font-size:11px}}

.table-hint{display:none}@media(max-width:700px){.article-body .table-hint{display:block;font-size:13px;margin-top:20px;color:var(--muted)}}

/* v04: everyday water, with a warmer image-led story. */
.hero{grid-template-columns:1fr 1.12fr;gap:50px;padding-block:48px 60px}.hero h1{font-size:clamp(46px,4.7vw,72px);letter-spacing:-.055em}.hero-photo{height:540px;background:#e9e4db}.hero-photo img{object-position:40% center}.hero-copy>p{font-size:18px}.everyday{padding-block:72px 80px}.everyday .section-heading p{max-width:640px;margin-inline:auto}.everyday-grid img{background:#eef2f6}.about-ecw{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:80px}.about-ecw figure{margin:0}.about-ecw img{display:block;width:100%;height:470px;object-fit:cover;border-radius:14px}.about-ecw h2{font-size:clamp(34px,3.2vw,48px);margin-bottom:24px}.about-ecw p+p{margin-top:18px}.service-photo{margin:0 0 42px}.service-photo img{display:block;width:100%;height:360px;object-fit:cover;border-radius:12px}.approach h2{max-width:850px;font-size:clamp(34px,3.3vw,49px)}
@media(max-width:1100px){.hero{gap:32px}.hero h1{font-size:50px}.hero-photo{height:510px}.about-ecw{gap:40px}.about-ecw img{height:410px}}
@media(max-width:700px){.hero{grid-template-columns:1fr;gap:30px;padding-block:32px 40px}.hero h1{font-size:47px}.hero-photo{height:310px;order:0}.hero-photo img{object-position:43% center}.hero-copy>p{font-size:17px}.hero .eyebrow{font-size:12px;margin-bottom:20px}.everyday{padding-block:48px}.about-ecw{grid-template-columns:1fr;gap:30px}.about-ecw img{height:280px}.about-ecw h2{font-size:35px}.service-photo img{height:270px}.service-strip .strip-inner span{font-size:13px}}
.contact-phone .contact-visit{margin:22px 0 0;color:var(--muted);font-size:15px;line-height:1.6}
.footer-inner small a{color:inherit;white-space:nowrap}