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24px}.dw-water-orbit:before{content:'';position:absolute;inset:24px;border-radius:50%;background:radial-gradient(circle at 30% 25%,#ffffffd0,transparent 55%),var(--water-color);box-shadow:inset -14px -16px 30px #17374725,0 15px 45px -12px #3e8caa40;opacity:.65;transition:background .3s}.dw-water-molecule{position:relative;z-index:1;font-size:52px;letter-spacing:-.04em;color:#173747}.dw-orbit-dot{position:absolute;left:0;top:55%;width:14px;height:14px;background:var(--water-color);border:4px solid white;border-radius:50%;box-shadow:0 0 0 1px #c2dce7}.dw-h2-bubble{position:absolute;z-index:2;right:0;bottom:12px;display:grid;place-items:center;width:68px;height:68px;border-radius:50%;background:white;color:#174b64;border:1px solid #a7c9db;font-size:28px;box-shadow:0 8px 26px #174b6420}.dw-ph-value{display:flex;gap:13px;align-items:baseline;line-height:1}.dw-ph-value>span{font-size:24px}.dw-ph-value 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#dw-ph::-moz-range-track{height:12px;border-radius:100px;background:linear-gradient(90deg,#ae6780,#78aec3,#8469a5)}.dw-premium #dw-ph::-moz-range-thumb{width:24px;height:24px;border:4px solid #174b64;border-radius:50%;background:white}.dw-ph-scale{display:flex;justify-content:space-between;gap:8px;font-size:16px;color:var(--dw-muted)}.dw-ph-presets{display:flex;gap:9px;margin:24px 0;flex-wrap:wrap}.dw-ph-presets button,.dw-quiz-option,.dw-study-filters button,[data-study-empty] button{font:inherit;font-size:16px;min-height:44px;cursor:pointer;border:1px solid var(--dw-line);border-radius:100px;padding:9px 17px;background:#f8fbfc;color:var(--dw-ink)}.dw-ph-presets button[aria-pressed=true]{background:#174b64;color:white;border-color:#174b64}.dw-ph-explanation{min-height:158px}.dw-ph-explanation h3{font-size:22px;line-height:1.35;letter-spacing:-.025em;margin:0 0 12px}.dw-ph-explanation 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h3{font-size:23px;margin:8px 0}.dw-lab-challenge p{font-size:16px;margin:0;line-height:1.6}.dw-challenge-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap;max-width:420px}.dw-challenge-status{grid-column:1/-1;color:#174b64;font-weight:600}.dw-challenge-status:empty{display:none}.dw-lab-bottom{display:flex;gap:30px;justify-content:space-between;align-items:center;margin-top:22px}.dw-lab-bottom p{max-width:720px;font-size:16px;line-height:1.7;color:var(--dw-muted);margin:0}.dw-lab-bottom a{flex-shrink:0}.dw-guide-grid,.dw-study-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.dw-guide-grid article{padding:28px;border:1px solid var(--dw-line);border-radius:24px;background:white}.dw-guide-grid h2{font-size:26px;line-height:1.3;margin:20px 0}.dw-guide-grid p,.dw-study-grid p{font-size:16px;line-height:1.75;color:var(--dw-muted)}.dw-guide-grid a:hover,.dw-study-grid 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.dw-study-meta{font-size:16px;margin:0;color:#38667b}.dw-study-grid .dw-study-sample{font-weight:600;color:var(--dw-ink);margin-bottom:0}.dw-study-links{display:flex;gap:26px;margin-top:auto;padding-top:12px;font-size:16px;font-weight:600;flex-wrap:wrap}.dw-original{margin-top:36px;padding:28px 32px;border-radius:24px;background:#eaf3f7;overflow-wrap:anywhere}.dw-original>a{display:inline-flex;margin:12px 24px 4px 0}.dw-research-article{max-width:880px;margin:20px auto 50px;font-size:18px;line-height:1.85}.dw-research-article h1{font-size:clamp(34px,4.2vw,54px)!important}.dw-research-article h2{font-size:30px;line-height:1.3;margin:40px 0 18px}.dw-research-article header{margin:30px 0}.dw-research-lead{font-size:21px;color:var(--dw-muted);line-height:1.7}.dw-research-article section>a{text-decoration:underline;text-underline-offset:4px}.dw-evidence-facts{display:grid;grid-template-columns:1fr 1fr;gap:24px;border-block:1px solid var(--dw-line);padding-block:12px;font-size:16px}.dw-evidence-facts strong{display:block;color:var(--dw-muted);font-size:16px;margin-bottom:8px}.dw-research-article .dw-original h2{margin-top:0}.dw-lab-section [hidden],.dw-studies [hidden]{display:none!important}
@media(max-width:1000px){.dw-lab-heading{gap:28px}.dw-lab-controls{padding:28px}.dw-guide-grid{grid-template-columns:1fr}.dw-guide-grid article{padding:26px}.dw-guide-grid h2{margin:12px 0}.dw-lab-challenge{grid-template-columns:1fr}.dw-challenge-actions{justify-content:flex-start;max-width:none}.dw-lab-bottom{align-items:start;flex-direction:column;gap:12px}.dw-ph-explanation{min-height:210px}}
@media(max-width:700px){.dw-lab-section{padding-block:45px}.dw-lab-heading{grid-template-columns:1fr;gap:18px}.dw-lab-heading>p{font-size:17px}.dw-lab{grid-template-columns:1fr;border-radius:24px}.dw-lab-visual{display:grid;grid-template-columns:110px 1fr;column-gap:20px;text-align:left;padding:24px;justify-items:start}.dw-water-orbit{width:110px;height:110px;margin:0;grid-row:1/4}.dw-water-orbit:before{inset:12px}.dw-water-molecule{font-size:29px}.dw-h2-bubble{height:40px;width:40px;font-size:21px;right:-4px;bottom:0}.dw-ph-value output{font-size:50px}.dw-ph-value>span{font-size:18px}.dw-lab-visual>p{font-size:17px;margin:10px 0}.dw-lab-caption{font-size:16px;line-height:1.5;grid-column:1/-1;margin-top:18px;max-width:none}.dw-lab-controls{padding:24px 20px}.dw-slider-label{font-size:17px;gap:12px}.dw-ph-scale{font-size:16px}.dw-ph-scale span:nth-child(2){text-align:center}.dw-ph-presets{gap:7px}.dw-ph-presets button{padding:8px 12px;font-size:16px}.dw-ph-explanation{min-height:195px}.dw-lab-challenge{padding:24px 20px}.dw-lab-challenge h3{font-size:22px}.dw-guide-grid,.dw-study-grid{grid-template-columns:1fr}.dw-study-filters{display:grid;grid-template-columns:1fr 1fr;gap:16px}.dw-study-filters label{min-width:0}.dw-study-filters p{margin-left:0}.dw-study-filters button{padding:9px 10px;font-size:16px}.dw-studies h2{font-size:32px}.dw-research-article{font-size:18px}.dw-research-lead{font-size:19px}.dw-evidence-facts{grid-template-columns:1fr;gap:0}.dw-original{padding:24px 20px}.dw-lab-heading h2{font-size:32px}.dw-studies,.dw-lab-section{scroll-margin-top:190px}}
@media(prefers-reduced-motion:reduce){.dw-water-orbit:before{transition:none}}