:root{--ink:#102b2a;--deep:#0b3d3a;--deep2:#072e2c;--cream:#f5f0e5;--paper:#fffdf8;--sun:#f6c85f;--rust:#c85f38;--muted:#60706d;--line:#d7ddd7;--shadow:0 18px 50px rgba(13,45,42,.12);font-family:Arial,"Helvetica Neue",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);font-size:16px;line-height:1.6}a{color:inherit;text-underline-offset:.2em}button,input{font:inherit}.skip{position:absolute;left:-999px;top:1rem;background:#fff;padding:.7rem 1rem;z-index:20}.skip:focus{left:1rem}.site-header{height:74px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.brand{display:flex;gap:.65rem;align-items:center;font-weight:700;text-decoration:none;font-size:1.1rem}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--deep);color:var(--sun)}nav{display:flex;gap:1.6rem}nav a{text-decoration:none;font-weight:600;font-size:.92rem}.hero{min-height:650px;max-width:1440px;margin:auto;position:relative;display:flex;align-items:flex-end;overflow:hidden;background:var(--deep)}.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,31,30,.9) 0%,rgba(4,31,30,.65) 35%,rgba(4,31,30,.08) 74%),linear-gradient(0deg,rgba(4,31,30,.4),transparent 45%)}.hero-copy{position:relative;z-index:1;color:#fff;max-width:650px;padding:clamp(48px,8vw,105px)}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:700;color:var(--sun);margin:0 0 1rem}.eyebrow.dark{color:var(--rust)}h1,h2{font-family:Georgia,"Times New Roman",serif;line-height:.98;letter-spacing:-.035em;margin:.1em 0 .35em}h1{font-size:clamp(3.3rem,7vw,6.5rem)}h2{font-size:clamp(2.4rem,4vw,4.2rem)}h3{font-size:1.25rem;line-height:1.25}.hero-copy>p:not(.eyebrow){font-size:1.18rem;max-width:520px;margin-bottom:2rem}.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:48px;padding:.72rem 1.1rem;border:1px solid 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rgba(16,43,42,.03)}.pick-card.featured{background:var(--cream);border-top:5px solid var(--rust)}.pick-label{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--rust);font-weight:700}.pick-card h3{font-family:Georgia,"Times New Roman",serif;font-size:2rem;margin:.6rem 0 0}.pick-use{color:var(--muted);margin:.25rem 0 1.5rem}.pick-card dl{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;padding:1rem 0;border-block:1px solid var(--line);margin:0}.pick-card dl div{display:flex;flex-direction:column}.pick-card dt{font-size:.73rem;text-transform:uppercase;color:var(--muted)}.pick-card dd{margin:0;font-weight:700}.verdict{flex:1}.pick-card .button{align-self:flex-start;margin-top:1rem}.table-wrap{overflow:auto;margin-top:3.2rem;border:1px solid var(--line)}table{width:100%;border-collapse:collapse;min-width:800px}caption{text-align:left;padding:1rem;background:var(--cream);font-weight:600}th,td{text-align:left;padding:1rem;border-bottom:1px solid var(--line)}thead{background:var(--deep);color:#fff}tbody th{font-weight:700}.source-note{font-size:.86rem;color:var(--muted)}.finder{max-width:none;background:var(--deep);color:#fff;display:grid;grid-template-columns:minmax(300px,560px) minmax(300px,480px);gap:clamp(3rem,8vw,8rem);justify-content:center}.finder h2{color:#fff}.finder-copy>p:not(.eyebrow){color:#d0dfdb}.finder form{display:grid;gap:1.1rem;margin-top:2rem}.finder label{font-weight:600}.finder input[type=number],.water-form input{display:block;width:100%;padding:.85rem;border:1px solid #94aaa5;background:#fff;color:var(--ink);margin-top:.4rem}.finder fieldset{border:0;padding:0;margin:0}.finder legend{font-weight:700;margin-bottom:.45rem}.finder fieldset label{display:inline-flex;gap:.4rem;margin-right:1.3rem;font-weight:400}.finder button{justify-self:start}.result-card{align-self:center;background:var(--paper);color:var(--ink);padding:clamp(2rem,5vw,4rem);box-shadow:var(--shadow);border-top:8px solid var(--sun)}.result-kicker{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--rust);font-weight:700}.result-card h3{font-family:Georgia,"Times New Roman",serif;font-size:2.5rem;margin:.4rem 0}.result-card a{font-weight:700}.calculator{display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}.water-form{display:grid;grid-template-columns:1fr 1fr;gap:1rem;background:var(--cream);padding:2rem}.water-form label{font-weight:700}.water-form label span{float:right;color:var(--muted);font-weight:400}.water-output{grid-column:1/-1;border-top:1px solid var(--line);padding-top:1.5rem;display:flex;justify-content:space-between;align-items:center}.water-output strong{font-family:Georgia,"Times New Roman",serif;font-size:2rem}.fine-print{font-size:.82rem;color:var(--muted);grid-column:2}.method{max-width:none;background:var(--cream)}.method-title,.method-grid{max-width:1180px;margin:auto}.method-title{margin-bottom:3rem}.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}.method-grid article{border-top:2px solid var(--ink);padding-top:1.2rem}.method-grid span{font-family:Georgia,"Times New Roman",serif;color:var(--rust);font-size:1.5rem}.method-grid h3{margin:.5rem 0}.faq{max-width:850px}.faq details{border-top:1px solid var(--line);padding:1.2rem 0}.faq summary{font-weight:700;font-size:1.08rem;cursor:pointer}.faq details p{color:var(--muted);padding-right:2rem}footer{background:var(--deep2);color:#fff;padding:4rem max(24px,calc((100vw - 1180px)/2));display:grid;grid-template-columns:1fr 2fr 1fr;gap:3rem}footer p{color:#bcd0cb}.footer-links{display:flex;flex-direction:column;gap:.5rem}.disclosure{font-size:.9rem}.affiliate-link span{font-weight:400}.affiliate-note{font-size:.8rem}
@media(max-width:800px){nav{display:none}.hero{min-height:580px}.hero-shade{background:linear-gradient(0deg,rgba(4,31,30,.92),rgba(4,31,30,.18) 80%)}.hero-copy{padding:38px 24px}.quick-picks,.finder,.calculator{grid-template-columns:1fr}.section{padding:75px 20px}.finder{padding-inline:20px}.method-grid{grid-template-columns:1fr 1fr}.fine-print{grid-column:1}.trust-strip{margin:0;align-items:flex-start;flex-direction:column}.pick-card dl{grid-template-columns:1fr 1fr}.water-form{grid-template-columns:1fr}footer{grid-template-columns:1fr}}
@media(max-width:500px){h1{font-size:3.2rem}.hero{min-height:620px}.method-grid{grid-template-columns:1fr}.pick-card{padding:1.4rem}.water-form{padding:1.3rem}.water-output{align-items:flex-start;flex-direction:column}.site-header{height:64px}.button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button:hover{transform:none}}