:root{--ink: #102a43;--muted: #52677a;--line: #d9e5ec;--paper: #f6fbfd;--white: #ffffff;--blue: #087ea4;--blue-dark: #075c78;--aqua: #dff6f5;--shadow: 0 22px 60px rgba(16, 42, 67, .12);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);line-height:1.6}a{color:inherit;text-decoration:none}.site-header,main,footer{width:min(1180px,calc(100% - 40px));margin-inline:auto}.site-header{height:82px;display:flex;align-items:center;gap:30px}.site-header nav{display:flex;gap:25px;margin-left:auto;font-size:.94rem;font-weight:650}.site-header nav a:hover{color:var(--blue)}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.03em}.brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:50% 50% 50% 12%;background:var(--blue);color:#fff;transform:rotate(-8deg)}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;background:var(--blue);color:#fff;font-weight:750;box-shadow:0 10px 25px #087ea42e;transition:.2s ease}.button:hover{transform:translateY(-2px);background:var(--blue-dark)}.button-small{min-height:42px;padding-inline:18px}.button-secondary{background:transparent;color:var(--ink);border:1px solid var(--line);box-shadow:none}.button-secondary:hover{background:#fff;color:var(--ink)}.button-light{background:#fff;color:var(--blue-dark);box-shadow:none}.hero{min-height:630px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:50px;border-radius:36px;padding:70px;background:linear-gradient(135deg,#effafb,#dff6f5 55%,#ccecf4);overflow:hidden;position:relative}.hero-copy{position:relative;z-index:2}.eyebrow{color:var(--blue);text-transform:uppercase;letter-spacing:.14em;font-size:.77rem;font-weight:850;margin:0 0 14px}h1,h2,h3{line-height:1.08;letter-spacing:-.04em;margin-top:0}h1{font-size:clamp(3.1rem,7vw,6.4rem);max-width:780px;margin-bottom:24px}h2{font-size:clamp(2rem,4vw,3.5rem);margin-bottom:20px}h3{font-size:1.45rem}.lead{font-size:1.22rem;max-width:650px;color:var(--muted)}.hero-actions{display:flex;gap:12px;margin:32px 0 26px;flex-wrap:wrap}.trust-list{display:flex;flex-wrap:wrap;gap:22px;padding:0;list-style:none;color:var(--muted);font-size:.92rem}.trust-list li:before{content:"✓";color:var(--blue);font-weight:900;margin-right:8px}.hero-visual{height:500px;position:relative;display:grid;place-items:center}.bottle{position:absolute;border:3px solid rgba(8,126,164,.35);background:#ffffff73;backdrop-filter:blur(8px);border-radius:65px 65px 38px 38px;box-shadow:var(--shadow);display:grid;place-items:center;color:var(--blue-dark);font-weight:900}.bottle:before{content:"";position:absolute;top:-28px;width:48%;height:32px;background:var(--blue);border-radius:8px 8px 3px 3px}.bottle-large{width:190px;height:380px;transform:rotate(7deg);z-index:2}.bottle-small{width:115px;height:240px;left:25px;bottom:55px;transform:rotate(-10deg)}.water-ring{position:absolute;width:430px;height:430px;border:1px solid rgba(8,126,164,.24);border-radius:50%;box-shadow:0 0 0 50px #ffffff2e,0 0 0 100px #ffffff1f}.section{padding:110px 10px}.section-tight{padding:0 10px 80px}.intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end}.intro p:last-child{color:var(--muted);font-size:1.12rem;max-width:560px}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.article-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;min-height:300px;display:flex;flex-direction:column;transition:.2s ease}.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.card-number{color:var(--blue);font-weight:850}.article-card h3{margin:55px 0 12px}.article-card p{color:var(--muted);margin:0}.text-link{margin-top:auto;font-weight:780;color:var(--blue-dark)}.feature{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center;background:var(--ink);color:#fff;border-radius:34px;padding-inline:65px}.feature-copy>p:not(.eyebrow){color:#c6d7e3;max-width:680px}.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:35px 0}.metric-row div{border-top:1px solid rgba(255,255,255,.24);padding-top:15px}.metric-row strong,.metric-row span{display:block}.metric-row span{color:#a9c0cf;font-size:.85rem}.calculator-preview{background:#fff;color:var(--ink);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.preview-label{color:var(--blue);font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.calculator-preview label{display:block;margin:18px 0;color:var(--muted);font-size:.9rem}.calculator-preview input{width:100%;padding:13px;margin-top:6px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#f8fbfc}.result-preview{margin-top:25px;padding:18px;border-radius:14px;background:var(--aqua)}.result-preview span,.result-preview strong{display:block}.comparison-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:45px}.comparison-grid article{border-top:1px solid var(--line);padding:28px 5px}.comparison-grid p{color:var(--muted)}.drop{display:grid;place-items:center;width:46px;height:52px;border-radius:50% 50% 50% 12%;background:var(--aqua);color:var(--blue-dark);font-weight:850;margin-bottom:35px}.split{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding-inline:0}.split-panel{min-height:390px;border-radius:30px;padding:55px;display:flex;flex-direction:column;justify-content:end}.split-panel p:last-child{max-width:520px}.glass-panel{background:linear-gradient(150deg,#e2f7f7,#bce9ed)}.pet-panel{background:linear-gradient(150deg,#eef2ff,#dce6f8)}.cta-section{background:var(--blue);color:#fff;border-radius:32px;padding:65px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-section .eyebrow{color:#b8eff4}.cta-section h2{margin-bottom:8px}.cta-section p:last-child{margin:0;color:#d8f2f4}.faq h2{margin-bottom:40px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:22px 0}summary{cursor:pointer;font-weight:750;font-size:1.08rem}details p{max-width:820px;color:var(--muted)}footer{min-height:180px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:35px;border-top:1px solid var(--line);color:var(--muted)}footer p{text-align:center}footer>a:last-child{color:var(--blue-dark);font-weight:750}@media(max-width:900px){.site-header nav{display:none}.site-header .button{margin-left:auto}.hero{grid-template-columns:1fr;padding:50px 28px}.hero-visual{height:360px}.intro,.feature,.card-grid,.comparison-grid,.split{grid-template-columns:1fr}.feature{padding:55px 28px}.metric-row{grid-template-columns:1fr}.cta-section{align-items:flex-start;flex-direction:column}footer{grid-template-columns:1fr;text-align:center;padding:40px 0}}@media(max-width:600px){.site-header,main,footer{width:min(100% - 24px,1180px)}.site-header{height:70px}.site-header .button{display:none}h1{font-size:3.2rem}.hero{min-height:auto;border-radius:24px}.hero-visual{height:300px}.bottle-large{width:130px;height:270px}.bottle-small{width:80px;height:170px}.water-ring{width:280px;height:280px}.section{padding:75px 4px}.split-panel,.cta-section{padding:38px 28px}}