:root{--ink:#172b2b;--accent:#086c59;--soft:#eaf4ef;--edge:#dce5df;--muted:#617470;--paper:#f7f8f4}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:16px/1.7 "Malgun Gothic",system-ui,sans-serif;background:var(--paper);word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.shell{width:min(1200px,100% - 64px);margin:auto}
.brand-hasu{--accent:#087762;--soft:#e8f3ed}.brand-leak{--accent:#1558c0;--soft:#eaf1fc;--paper:#f8fafc}.brand-drain{--accent:#bc4c0a;--soft:#fff0e3;--paper:#fcfaf6}.brand-sewer{--accent:#9f2055;--soft:#fbedf2;--paper:#fcf9f9}
body>header{border-bottom:1px solid var(--edge);background:#fff}header>.shell{min-height:92px;display:flex;align-items:center;gap:26px}.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-size:23px;font-weight:900;text-decoration:none;letter-spacing:-1px;flex-shrink:0}.logo{max-width:58px;max-height:48px;object-fit:contain}.tagline{display:none}nav{display:flex;gap:24px;flex:1;justify-content:center;flex-wrap:wrap}nav a{text-decoration:none;color:var(--ink);font-size:14px;font-weight:700}.phone,.button{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;white-space:nowrap}.button.secondary{color:var(--accent);background:#fff;border:1px solid var(--edge)}
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.archive-heading{margin:6px 0 34px}.archive-heading h1{font-size:38px;line-height:1.3;letter-spacing:-1.5px;margin:6px 0 16px}.archive-heading p{color:var(--muted)}.pagination{display:flex;justify-content:center;gap:10px;margin:36px 0 0;flex-wrap:wrap}.pagination a{padding:8px 14px;border:1px solid var(--edge);border-radius:7px;background:white}.pagination a[aria-current=page]{background:var(--accent);color:white}.article-heading{max-width:920px;margin:0 auto 32px}.article-heading h1{font-size:36px;line-height:1.45;letter-spacing:-1.3px;margin:16px 0}.breadcrumb{color:var(--muted);font-size:13px}.article-reading{max-width:920px;margin:auto;display:flow-root;line-height:1.95}.article-reading h2{font-size:25px;letter-spacing:-.7px;margin:40px 0 16px}.article-reading h3{font-size:21px}.article-reading p{margin:0 0 22px}.article-reading ul,.article-reading ol{padding-left:24px}.article-reading img{max-width:100%;height:auto}.hero-image{display:block;width:360px;max-width:100%;height:auto;border-radius:12px}.article-photo{float:right;margin:0 0 28px 32px;width:360px;max-width:100%}.article-photo figcaption{font-size:11px;color:var(--muted);line-height:1.6;margin:8px 0}.article-reading table{border-collapse:collapse;display:block;overflow:auto;max-width:100%;font-size:14px;margin:25px 0}.article-reading th,.article-reading td{border:1px solid var(--edge);padding:12px}.article-reading blockquote{border-left:3px solid var(--accent);padding:15px 20px;margin:25px 0;background:var(--soft)}.article-cta{clear:both;margin:44px 0 0;padding:28px;background:var(--soft);border-radius:12px}.article-cta p{margin:0 0 16px}.article-cta strong{display:block;font-size:22px;margin-bottom:8px}body>footer{padding:34px 0;background:#172b2b;color:#d8e2df;font-size:14px}footer .shell{display:flex;justify-content:space-between;gap:25px;flex-wrap:wrap}footer a{color:inherit}footer strong{font-size:20px}
@media(max-width:900px){.shell{width:calc(100% - 40px)}.home-hero{gap:26px}.home-hero h1{font-size:38px}.article-list{gap:18px}.article-card h3{font-size:18px}.card-content{padding:18px}header>.shell{gap:16px}header nav{gap:15px}.brand{font-size:20px}.phone{font-size:13px;padding:11px 14px}}
@media(max-width:650px){.shell{width:calc(100% - 36px)}header>.shell{min-height:74px;gap:10px;flex-wrap:wrap;padding:12px 0}.brand{font-size:20px;flex:1}.logo{max-width:44px;max-height:40px}header nav{order:3;flex-basis:100%;justify-content:flex-start;gap:18px;border-top:1px solid var(--edge);padding-top:10px}main.shell{padding:30px 0 48px}.home-hero{grid-template-columns:1fr;gap:30px;padding:0 0 45px}.home-hero h1{font-size:35px;letter-spacing:-1.8px;line-height:1.3;margin-bottom:20px}.eyebrow{margin-bottom:14px}.hero-description{font-size:16px;margin-bottom:22px}.hero-actions{gap:8px}.button{font-size:14px;padding:11px 17px}.hero-note{font-size:12px}.feature-card{max-width:450px;width:100%}.feature-caption{font-size:15px;padding:16px 18px}.section-top{align-items:start;gap:10px}.section-top h2{font-size:26px}.section-top p{font-size:14px}.section-top>a{font-size:12px;margin-top:8px}.article-list{grid-template-columns:1fr;gap:22px}.article-card h3{font-size:21px}.card-content{padding:22px}.guidance{grid-template-columns:1fr;padding:24px;margin-top:40px}.archive-heading h1{font-size:29px}.article-heading h1{font-size:29px;letter-spacing:-.9px}.article-photo{float:none;width:100%;margin:0 0 25px}.hero-image{width:100%}.article-reading h2{font-size:23px}.article-cta{padding:22px}.pagination{gap:7px}.pagination a{padding:7px 11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.article-card{transition:none}.article-card:hover{transform:none}}