:root {
  --cream: #F7F2E8;
  --paper: #EFE7D9;
  --charcoal: #1A1613;
  --charcoal-2: #242019;
  --ink: #211C17;
  --ink-soft: #6E6155;
  --cream-soft: #D9CFBE;
  --gold: #C9A467;
  --gold-deep: #A17F49;
  --line: rgba(33, 28, 23, .14);
  --line-dark: rgba(247, 242, 232, .14);
  --red: #b4432f;
  --serif: 'PT Serif', Georgia, serif;
  --sans: 'Inter', -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 72px; }
body { margin: 0; background: var(--cream); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.12; margin: 0; }
h2 { font-size: clamp(30px, 4.2vw, 48px); margin: 14px 0 18px; }
h3 { font-size: 21px; }
p { margin: 0 0 16px; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }
.eyebrow { display: inline-block; font-size: 12px; letter-spacing: .22em; text-transform: uppercase; font-weight: 600; }
.eyebrow.gold, .gold { color: var(--gold-deep); }
.dark .eyebrow.gold, .hero .eyebrow { color: var(--gold); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--sans); font-weight: 600; font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase;
  padding: 16px 28px; border: 1px solid currentColor; background: transparent; color: inherit;
  cursor: pointer; text-decoration: none; transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.btn-gold { background: var(--gold); border-color: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--gold-deep); border-color: var(--gold-deep); }
.btn-outline:hover { background: var(--cream); color: var(--charcoal); border-color: var(--cream); }
.btn-sm { padding: 10px 18px; font-size: 11px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: wait; }

.ref { color: var(--gold-deep); text-decoration: none; font-size: .8em; font-weight: 600; vertical-align: super; line-height: 0; }
.dark .ref, .stats .ref { color: var(--gold); }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(26, 22, 19, .95); backdrop-filter: blur(6px); color: var(--cream); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 16px; padding-bottom: 16px; }
.logo { font-family: var(--serif); font-weight: 700; font-size: 18px; letter-spacing: .02em; text-decoration: none; color: var(--cream); white-space: nowrap; }
.logo span { font-style: italic; font-weight: 400; color: var(--gold); font-size: .85em; margin-left: 4px; }
.links { display: flex; gap: 28px; font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; font-weight: 600; color: var(--cream-soft); }
.links a { text-decoration: none; }
.links a:hover { color: var(--gold); }
@media (max-width: 900px) { .links { display: none; } }
@media (max-width: 560px) { .nav .btn-sm { display: none; } }

/* hero */
.hero { background: radial-gradient(120% 90% at 85% 10%, #2e2720 0%, var(--charcoal) 60%); color: var(--cream); padding: 72px 0 88px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.hero h1 { font-size: clamp(36px, 5.4vw, 66px); margin: 18px 0 24px; letter-spacing: -.005em; }
.hero h1 em { color: var(--gold); font-style: italic; }
.hero .lead { font-size: 18px; color: var(--cream-soft); max-width: 54ch; margin-bottom: 32px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-media img { box-shadow: 0 30px 70px rgba(0, 0, 0, .5); }
@media (max-width: 900px) {
  .hero { padding: 48px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-media { max-width: 460px; }
}

/* stats */
.stats { background: var(--charcoal-2); color: var(--cream); border-top: 1px solid var(--line-dark); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 40px 24px; border-left: 1px solid var(--line-dark); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b { display: block; font-family: var(--serif); font-size: clamp(34px, 3.6vw, 46px); color: var(--gold); line-height: 1; margin-bottom: 12px; }
.stat span { font-size: 14px; color: var(--cream-soft); }
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { padding: 28px 16px; border-left: 0; border-top: 1px solid var(--line-dark); }
  .stat:nth-child(odd) { padding-left: 0; }
}

/* sections */
.section { padding: 96px 0; }
.section.cream { background: var(--paper); }
.section.dark { background: var(--charcoal); color: var(--cream); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head .sub { color: var(--ink-soft); font-size: 17px; }
.dark .section-head .sub { color: var(--cream-soft); }
.section.cream p { color: var(--ink); font-size: 17px; }
@media (max-width: 700px) { .section { padding: 64px 0; } }

/* contaminant cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); padding: 32px 28px; position: relative; }
.card-num { font-family: var(--serif); font-style: italic; color: var(--gold); font-size: 15px; }
.card h3 { margin: 8px 0 14px; }
.card p { color: var(--ink-soft); font-size: 15px; }
.card-risk { color: var(--ink) !important; border-top: 1px solid var(--line); padding-top: 14px; margin: 0; font-weight: 500; }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .cards { grid-template-columns: 1fr; } }

/* evidence */
.evidence { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.ev { margin: 0; padding: 32px 32px 28px; border: 1px solid var(--line-dark); border-left: 2px solid var(--gold); background: rgba(247, 242, 232, .03); }
.ev blockquote { margin: 0 0 18px; font-family: var(--serif); font-size: 19px; line-height: 1.5; color: var(--cream); }
.ev blockquote::before { content: "„"; color: var(--gold); }
.ev blockquote::after { content: "“"; color: var(--gold); }
.ev figcaption { font-size: 13.5px; color: var(--cream-soft); }
.note-light { margin-top: 28px; font-size: 13px; color: var(--cream-soft); opacity: .8; }
@media (max-width: 800px) { .evidence { grid-template-columns: 1fr; } .ev { padding: 24px; } }

/* methods */
.methods { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 64px; }
.method { background: var(--cream); border: 1px solid var(--line); padding: 28px 24px; display: flex; flex-direction: column; }
.method h3 { font-size: 19px; margin-bottom: 12px; }
.method p { font-size: 14.5px !important; color: var(--ink-soft) !important; }
.method .minus, .method .plus { margin-top: auto; margin-bottom: 0; padding-top: 14px; border-top: 1px solid var(--line); font-weight: 500; }
.method .minus { color: var(--red) !important; }
.method .plus { color: var(--gold-deep) !important; }
.method.featured { background: var(--charcoal); color: var(--cream); border-color: var(--charcoal); position: relative; }
.method.featured p { color: var(--cream-soft) !important; }
.method.featured .plus { color: var(--gold) !important; border-color: var(--line-dark); }
.tag { position: absolute; top: -12px; left: 24px; background: var(--gold); color: #fff; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; font-weight: 700; padding: 4px 10px; }
@media (max-width: 1000px) { .methods { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .methods { grid-template-columns: 1fr; } .method.featured { margin-top: 8px; } }

/* comparison table */
.table-title { font-size: 26px; margin-bottom: 20px; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); background: #fff; }
.compare { width: 100%; min-width: 820px; border-collapse: collapse; font-size: 14px; }
.compare th, .compare td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.compare thead th { background: var(--charcoal); color: var(--cream); font-family: var(--sans); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; font-weight: 600; position: sticky; top: 0; }
.compare thead th.hl { background: var(--gold-deep); }
.compare td:first-child { font-weight: 600; color: var(--ink); width: 22%; }
.compare td { color: var(--ink-soft); }
.compare td.hl { background: rgba(201, 164, 103, .12); color: var(--ink); font-weight: 500; }
.compare tbody tr:last-child td { border-bottom: 0; }
.table-hint { display: none; font-size: 13px; color: var(--ink-soft); text-align: center; margin-top: 10px; }
@media (max-width: 860px) { .table-hint { display: block; } }

/* electrolysis */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split-media img { box-shadow: 0 24px 60px rgba(33, 28, 23, .2); }
.split-text p { color: var(--ink-soft); font-size: 17px; }
.checks { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 14px; }
.checks li { position: relative; padding-left: 30px; color: var(--ink-soft); }
.checks li::before { content: ""; position: absolute; left: 0; top: 12px; width: 18px; height: 1.5px; background: var(--gold); }
.checks b { color: var(--ink); }
.honest { background: var(--paper); border-left: 2px solid var(--gold); padding: 18px 20px; font-size: 14.5px; color: var(--ink-soft); margin-bottom: 28px; }
.honest b { color: var(--ink); }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 40px; } .split-media { max-width: 520px; } }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-copy p { color: var(--cream-soft); font-size: 17px; }
.contact-perks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; color: var(--cream); }
.contact-perks li::before { content: "— "; color: var(--gold); }
.lead-form, .lead-thanks { background: var(--cream); color: var(--ink); padding: 36px 32px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--ink); background: #fff;
  border: 1px solid var(--line); padding: 13px 14px; border-radius: 0; transition: border-color .15s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--gold-deep); box-shadow: 0 0 0 3px rgba(201, 164, 103, .25); }
.err { display: none; color: var(--red); font-size: 13px; margin-top: 6px; }
.field.invalid input { border-color: var(--red); }
.field.invalid .err, .consent-err.show { display: block; }
.consent-err { margin: -6px 0 16px; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 20px; cursor: pointer; }
.consent input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--gold-deep); flex-shrink: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-msg { margin: 14px 0 0; color: var(--red); font-size: 14px; }
.lead-thanks { text-align: center; padding: 56px 32px; }
.lead-thanks .mark { width: 56px; height: 56px; border-radius: 50%; background: var(--gold); color: #fff; font-size: 26px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.lead-thanks h3 { font-size: 28px; margin-bottom: 10px; }
@media (max-width: 900px) { .contact { grid-template-columns: 1fr; gap: 40px; } .lead-form, .lead-thanks { padding: 28px 20px; } }

/* sources */
.sources ol { padding-left: 22px; margin: 24px 0 32px; display: grid; gap: 10px; }
.sources li { font-size: 13.5px; color: var(--ink-soft); line-height: 1.55; scroll-margin-top: 90px; }
.sources li a { color: var(--gold-deep); word-break: break-all; }
.sources li:target { background: rgba(201, 164, 103, .2); }
.h-small { font-size: 26px; margin: 0; }
.disclaimer { font-size: 12.5px !important; color: var(--ink-soft) !important; border-top: 1px solid var(--line); padding-top: 20px; }

/* footer */
.footer { background: #100D0A; color: #9A8E7E; font-size: 14px; padding: 64px 0 0; }
.footer a { text-decoration: none; color: var(--cream-soft); }
.footer a:hover { color: var(--gold); }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1.2fr 1fr; gap: 40px; padding-bottom: 48px; }
.f-tag { margin: 12px 0 0; font-family: var(--serif); font-style: italic; }
.footer h4 { font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase; font-weight: 600; color: var(--gold); margin: 4px 0 16px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; border-top: 1px solid rgba(247, 242, 232, .08); padding-top: 22px; padding-bottom: 26px; font-size: 12.5px; color: #6F6556; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } .footer { padding-bottom: 72px; } }

/* sticky CTA (mobile) */
.sticky-cta { display: none; }
@media (max-width: 760px) {
  .sticky-cta {
    display: block; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 60;
    background: var(--gold); color: #fff; text-align: center; text-decoration: none;
    font-weight: 600; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; padding: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .35); transition: opacity .2s ease, transform .2s ease;
  }
  .sticky-cta.hide { opacity: 0; transform: translateY(120%); pointer-events: none; }
}

/* legal page */
.legal { max-width: 780px; margin: 0 auto; padding: 56px 24px 80px; }
.legal h1 { font-size: clamp(30px, 4vw, 42px); margin: 18px 0 8px; }
.legal h2 { font-size: 22px; margin: 36px 0 12px; }
.legal p, .legal li { color: var(--ink-soft); }
.legal .back { color: var(--gold-deep); text-decoration: none; font-weight: 600; font-size: 14px; }
.legal table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 12px 0; }
.legal th, .legal td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.muted { color: var(--ink-soft); font-size: 14px; }