/* Three-stage treatment: shared overview and detailed product diagrams. */
.treatment-summary{padding:0 0 96px}.treatment-heading{display:grid;grid-template-columns:1.3fr 1fr;gap:70px;align-items:end;margin-bottom:38px}.treatment-heading .eyebrow{margin-bottom:17px}.treatment-heading h2{font-size:clamp(34px,3.3vw,48px)}.treatment-heading>p{font-size:14px;line-height:1.75;color:var(--muted);max-width:390px}.summary-stages{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:34px;counter-reset:stages}.summary-stages li{border-top:2px solid var(--aqua);padding-top:23px;position:relative}.stage-index{display:inline-grid;place-items:center;width:36px;height:36px;flex:none;border-radius:50%;background:#d8ebe5;color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.02em}.stage-material{font-size:9px;letter-spacing:.09em;font-weight:700;color:#416966;line-height:1.6}.summary-stages .stage-material{margin-top:20px}.summary-stages h3{font-size:23px;letter-spacing:-.035em;margin:10px 0 14px}.summary-stages li>p:last-child{font-size:13px;line-height:1.75;color:var(--muted)}.summary-close{display:grid;grid-template-columns:1.4fr 1fr;gap:45px;align-items:center;border-top:1px solid var(--line);margin-top:32px;padding-top:24px}.summary-close p{font-size:12px;line-height:1.75;color:var(--muted)}.summary-close p strong{color:var(--ink)}.summary-close .text-link{justify-self:end;white-space:normal;font-size:13px}.treatment-detail{padding:74px 0 80px;border-top:1px solid var(--line)}.water-route{display:grid;grid-template-columns:.9fr 1fr 1fr 1fr .8fr;list-style:none;padding:19px 24px;margin:0 0 25px;background:#e1ece3;border-radius:9px;gap:25px}.water-route li{position:relative;display:flex;flex-direction:column;justify-content:center;gap:7px;padding-right:7px}.water-route li:not(:last-child):after{content:'→';position:absolute;right:-17px;top:50%;transform:translateY(-50%);font-size:22px;color:#387b80}.water-route span{font-size:8px;letter-spacing:.09em;font-weight:700;color:#416966}.water-route strong{font-size:11px;font-weight:600;line-height:1.4}.treatment-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}.treatment-card{background:#fbfcf8;border:1px solid #d4dfd6;border-radius:13px;padding:24px;display:flex;flex-direction:column;min-width:0}.stage-card-top{display:flex;align-items:center;gap:12px;margin-bottom:16px}.stage-card-top .stage-material{font-size:8px;max-width:190px}.treatment-card h3{font-size:24px;letter-spacing:-.04em;line-height:1.15}.stage-diagram{margin:19px -9px 21px;min-width:0}.stage-diagram img{display:block;width:100%;height:auto}.stage-diagram figcaption{font-size:10px;text-align:center;line-height:1.5;color:#54716f;margin:7px 5px 0;min-height:30px}.stage-mechanism{font-size:13px;line-height:1.75;color:var(--muted);margin-bottom:23px;flex:1}.stage-effect{border-top:1px solid #d7e4dc;padding-top:17px}.stage-effect>span{font-size:8px;letter-spacing:.1em;font-weight:700;color:#24766e}.stage-effect p{font-size:13px;line-height:1.65;margin-top:8px;color:var(--ink)}.stage-boundary{font-size:11px;line-height:1.65;color:var(--muted);margin-top:18px;padding:12px 13px;border-radius:5px;background:#edf1ea;min-height:80px}.stage-boundary strong{font-weight:600;color:var(--ink)}.treatment-outcome{display:grid;grid-template-columns:.85fr 1.65fr;gap:45px;align-items:center;background:var(--ink);color:#fff;border-radius:12px;padding:36px 40px;margin-top:30px}.treatment-outcome .eyebrow{color:#aed7ce;font-size:8px;margin-bottom:15px}.treatment-outcome h3{font-size:29px;line-height:1.2}.treatment-outcome ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:23px 30px}.treatment-outcome li{display:flex;flex-direction:column;gap:6px}.treatment-outcome strong{font-size:13px;font-weight:600;color:#d9eea6}.treatment-outcome li span{font-size:11px;color:#d4e3e0;line-height:1.6}.treatment-care{display:grid;grid-template-columns:1.3fr 1fr;gap:65px;align-items:end;margin-top:33px}.treatment-care h3{font-size:19px;letter-spacing:-.025em;margin-bottom:12px}.treatment-care p{font-size:12px;line-height:1.75;color:var(--muted)}.treatment-sources{margin-top:23px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.treatment-sources summary{font-size:11px;padding:17px 0}.treatment-sources p{font-size:11px;line-height:1.8;max-width:100%}.treatment-sources a{text-decoration:underline;text-underline-offset:3px}.treatment-sources a:hover{color:#167568}.stages-jump{font-size:12px;margin-top:17px;gap:10px}.stage-index,.stage-material{font-family:var(--font)}
@media(max-width:1100px){.treatment-heading{gap:35px}.treatment-card{padding:18px}.treatment-cards{gap:14px}.treatment-card h3{font-size:21px}.stage-card-top{gap:8px}.stage-card-top .stage-material{font-size:7px}.stage-mechanism,.stage-effect p{font-size:12px}.stage-boundary{font-size:10px;min-height:90px}.summary-stages{gap:24px}.summary-stages h3{font-size:21px}.water-route{padding:18px;gap:20px}.water-route strong{font-size:10px}.water-route span{font-size:7px}}
@media(max-width:800px){.treatment-summary{padding-bottom:70px}.treatment-heading{grid-template-columns:1fr;gap:20px;margin-bottom:28px}.treatment-heading>p{max-width:580px}.treatment-heading h2{font-size:36px}.summary-stages{gap:20px}.summary-stages h3{font-size:20px}.summary-stages li>p:last-child{font-size:12px}.summary-close{grid-template-columns:1fr;gap:19px}.summary-close .text-link{justify-self:start}.treatment-detail{padding:55px 0}.treatment-cards{grid-template-columns:1fr;gap:20px}.treatment-card{padding:26px;display:grid;grid-template-columns:1fr 1fr;gap:0 28px}.stage-card-top,.treatment-card h3{grid-column:1/-1}.stage-card-top .stage-material{font-size:9px}.treatment-card h3{font-size:27px}.stage-diagram{grid-column:1;grid-row:3/6;margin:20px 0 0;align-self:center}.stage-mechanism{margin-top:22px;grid-column:2;font-size:13px}.stage-effect,.stage-boundary{grid-column:2}.stage-effect p{font-size:13px}.stage-boundary{font-size:11px;min-height:0}.water-route{grid-template-columns:1fr;gap:0;padding:8px 20px}.water-route li{flex-direction:row;justify-content:space-between;align-items:center;gap:20px;padding:13px 0}.water-route li+li{border-top:1px solid #ccddd2}.water-route li:not(:last-child):after{content:none}.water-route span{font-size:8px}.water-route strong{font-size:11px;text-align:right}.water-route li:not(:last-child) strong:after{content:' ↓';color:#28747c;margin-left:4px}.treatment-outcome{grid-template-columns:1fr;gap:25px;padding:30px}.treatment-outcome h3 br{display:none}.treatment-care{grid-template-columns:1fr;gap:18px}.treatment-care p{font-size:12px}}
@media(max-width:560px){.summary-stages{grid-template-columns:1fr;gap:25px}.summary-stages li{padding-top:18px;padding-left:50px}.summary-stages .stage-index{position:absolute;left:0;top:18px;width:32px;height:32px}.summary-stages .stage-material{margin-top:0;font-size:8px}.summary-stages h3{font-size:23px;margin:9px 0 11px}.summary-stages li>p:last-child{font-size:13px}.treatment-heading h2{font-size:32px}.treatment-heading>p{font-size:13px}.treatment-card{display:flex;padding:24px 20px}.stage-card-top .stage-material{font-size:8px}.treatment-card h3{font-size:26px}.stage-diagram{width:100%;max-width:360px;margin:16px auto}.stage-diagram figcaption{min-height:0;font-size:10px}.stage-mechanism{margin-top:0;margin-bottom:20px;font-size:13px}.stage-boundary{min-height:0}.treatment-outcome{padding:27px 23px}.treatment-outcome ul{grid-template-columns:1fr;gap:20px}.treatment-outcome h3{font-size:28px}.treatment-outcome li span{font-size:12px}.treatment-care h3{font-size:19px}}

.treatment-legend{display:flex;flex-wrap:wrap;list-style:none;gap:13px 25px;margin:0 0 22px;padding:0 2px;color:#456867;font-size:10px}.treatment-legend li{display:flex;align-items:center;gap:7px}.treatment-legend i{width:9px;height:9px;display:inline-block;flex:none;border-radius:50%}.legend-sediment{background:#9a6b46}.legend-mineral{border:2px solid #70bfdd;background:transparent}.legend-chlorine{background:#8c6cab}.treatment-legend .legend-phosphate{color:#147d74;font-size:18px;font-weight:600;line-height:8px;font-style:normal;border-radius:0;text-align:center}@media(max-width:560px){.treatment-legend{gap:12px 17px;font-size:10px;margin-bottom:22px}}