/* V77: daylight editorial refinement. This loads after the original styles.
   Existing image assets, postcode IDs, signup IDs and server behaviour are unchanged. */
:root {
  --ivory:#fbfaf6;
  --parchment:#f5f1e9;
  --limestone:#e8e0d5;
  --charcoal:#30332f;
  --burgundy:#593a40;
  --antique-brass:#947f61;
  --ink:var(--charcoal);
  --deep:var(--charcoal);
  --cream:var(--ivory);
  --paper:var(--ivory);
}
body { background:var(--ivory); color:var(--charcoal); }
.header { background:#fbfaf6f5; border-color:#ddd5c9; }
.button.solid, .button { background:var(--burgundy); color:#fffdf8; border-color:var(--burgundy); }
.button.outline { color:var(--burgundy); border-color:var(--burgundy); background:transparent; }
.button.outline:hover { color:#fff; background:var(--burgundy); }

/* The original hero and its daytime architectural photograph are retained. */
body #home.reset-opening { min-height:650px; background:var(--parchment); }
body #home.reset-opening>.institution-hero-copy { background:linear-gradient(145deg,#fbfaf6 0%,#efe8de 100%); }
.architecture-hero img { min-height:650px; }
.architecture-hero figcaption, .renewal-image figcaption, .method-architecture figcaption { display:none; }
body #home.reset-opening .hero-proof { margin-top:30px; }

/* 30 seconds: three compact insights, visible without further interaction. */
#insiders-guide.insider-guide { padding:74px var(--pad) 70px; background:#fffdf9; }
.guide-intro { grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr); gap:6%; }
.guide-intro h2 { font-size:clamp(50px,5.2vw,80px); }
.guide-intro>p:last-child { font:24px/1.3 var(--serif); color:#5d5750; }
.guide-insights { margin:36px auto 0; gap:14px; }
.guide-insights article { min-height:0; padding:21px 24px 25px; background:#f1ece4; border-top:2px solid var(--burgundy); }
.guide-insights h3 { font-size:clamp(27px,2.2vw,35px); margin:16px 0 11px; }
.guide-insights p { font-size:13px; line-height:1.62; }
.guide-conclusion { margin-top:25px; padding-top:23px; }
.guide-conclusion p { font-size:14px; max-width:590px; }

/* XSO-01 remains the featured treatment; bottle pixels have not changed. */
#xso-01.renewal-treatment { background:#efe8dd; min-height:610px; }
.renewal-image { min-width:0; align-self:stretch; }
.renewal-image img { width:100%; height:100%; object-fit:cover; object-position:65% center; }
.renewal-image img { min-height:610px; }
.renewal-copy { padding-block:51px; }
.renewal-copy h2 { font-size:clamp(45px,4vw,70px); }
.renewal-copy .renewal-lead { font-size:27px; }
.renewal-copy ul { margin-top:19px; }
.renewal-copy li { padding:10px 0; }
.renewal-footer { margin-top:22px; }

/* The brand's scientific approach is one clear section, not three repetitions. */
#marylebone.method-feature { display:grid; grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr); background:#faf7f1; color:var(--charcoal); }
.method-copy { padding:76px clamp(30px,6vw,100px); display:flex; flex-direction:column; justify-content:center; }
.method-copy h2 { font-size:clamp(46px,4.5vw,72px); line-height:1.03; letter-spacing:-.025em; margin:0 0 24px; }
.method-copy h2 em { color:var(--burgundy); }
.method-founder { font-size:16px; line-height:1.8; max-width:580px; color:#4e514b; margin:0; }
.method-principles { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; margin-top:33px; border-top:1px solid #d8d0c5; padding-top:20px; }
.method-principles div { min-width:0; }
.method-principles span { display:block; font-size:10px; letter-spacing:.15em; color:var(--burgundy); margin-bottom:8px; }
.method-principles strong { font:23px/1.22 var(--serif); font-weight:500; color:#3c3d39; }
.method-architecture { position:relative; margin:0; min-height:570px; background:var(--limestone); overflow:hidden; }
.method-architecture img { display:block; width:100%; height:100%; min-height:570px; object-fit:cover; object-position:50% center; }

/* One focused secondary-treatment card, and the original postcode tool. */
#treatments.secondary-treatments { padding:76px var(--pad) 82px; background:#f7f3ed; color:var(--charcoal); }
.secondary-intro { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.8fr); gap:4% 7%; max-width:1240px; margin:0 auto 36px; align-items:end; }
.secondary-intro .eyebrow { grid-column:1/-1; margin:0; }
.secondary-intro h2 { font-size:clamp(45px,4.6vw,70px); line-height:1.04; }
.secondary-intro p:last-child { max-width:460px; font-size:15px; line-height:1.8; color:#555b54; }
.secondary-grid { display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr); gap:20px; width:min(1240px,100%); margin:auto; align-items:stretch; }
body #product-story.mineral-card { display:grid; grid-template-columns:minmax(0,.43fr) minmax(0,.57fr); gap:0; min-width:0; padding:0; border:0; background:#fffdf9; color:var(--charcoal); overflow:hidden; }
.mineral-card-photo { background:#e5ddd2; overflow:hidden; min-height:400px; }
.mineral-card-photo img { display:block; width:100%; height:100%; object-fit:cover; object-position:center 53%; }
.mineral-card-copy { padding:34px 34px 27px; display:flex; flex-direction:column; justify-content:center; align-items:flex-start; }
.mineral-card-copy .eyebrow { font-size:9px; margin:0 0 18px; }
.mineral-card h3 { font:500 clamp(35px,3.15vw,49px)/1.08 var(--serif); letter-spacing:-.025em; color:var(--charcoal); }
.mineral-card-copy>p:not(.eyebrow):not(.secondary-price) { font-size:14px; color:#565c56; line-height:1.7; margin:18px 0 0; }
.secondary-price { margin:21px 0 15px; font:38px/1 var(--serif); color:var(--burgundy); }
.secondary-price small { font:12px "DM Sans",sans-serif; color:#656a60; }
.mineral-card .text-link { font-size:10px; letter-spacing:.08em; padding-bottom:11px; }
#water-explore.water-card { border:1px solid #d6ccbf; background:#e9e2d8; padding:36px 35px; min-width:0; }
#water-explore.water-card .eyebrow { margin:0 0 21px; }
#water-explore.water-card h3 { font:500 clamp(35px,3.4vw,51px)/1.08 var(--serif); margin-bottom:16px; }
#water-explore.water-card>p:not(.eyebrow) { font-size:14px; line-height:1.75; color:#555a54; margin:0 0 26px; }
#water-explore.water-card .reset-postcode { background:transparent; border:0; padding:0; margin:0; }
#water-explore.water-card .reset-postcode label { font-size:10px; color:#483c3b; }
#water-explore.water-card .reset-input-row { border-color:#bdb2a3; }
#water-explore.water-card .reset-input-row button { background:var(--burgundy); color:#fff; }
#water-explore.water-card #hero-water-note { font-size:10px; }

/* Registration belongs after the customer has met the product. */
#access.founding-access { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,.9fr); gap:10%; align-items:center; padding:78px var(--pad) 86px; background:#ebe4d9; color:var(--charcoal); border-top:1px solid #d4c9bc; }
#access.founding-access .access-copy { max-width:610px; }
#access.founding-access .access-copy h2 { font-size:clamp(50px,4.7vw,78px); line-height:1.05; margin:0 0 22px; }
#access.founding-access .access-copy p:not(.eyebrow) { font-size:15px; line-height:1.85; color:#545750; max-width:500px; }
body #access.founding-access .signup { background:#fffdf9; border:1px solid #d5cabe; padding:35px 38px 30px; color:var(--charcoal); box-shadow:none; }
body #access.founding-access .signup .eyebrow { color:var(--burgundy); }
body #access.founding-access .signup h3 { font:500 38px/1.08 var(--serif); color:var(--charcoal); margin:0 0 19px; }
body #access.founding-access .signup label, body #access.founding-access .signup p, body #access.founding-access .signup .note { color:#4b514a; }
body #access.founding-access .waitlist-form { margin-top:0; }
body #access.founding-access .signup input[type=email] { background:#fff; color:var(--charcoal); border:1px solid #ccc0b1; min-height:54px; }
body #access.founding-access .signup .button.solid { width:100%; color:#fff; background:var(--burgundy); border-color:var(--burgundy); }
body #access.founding-access .signup .consent { margin:17px 0; }
body #access.founding-access .signup .note { font-size:11px; line-height:1.65; }
body #access.founding-access .signup-status a { color:var(--burgundy); }

/* Entire site, including footers, stays light. */
.brand-footer { background:#f6f1e9; color:var(--charcoal); padding-top:60px; border-top:1px solid #d6ccbe; }
.footer-wordmark { color:#333b35; margin-bottom:50px; }
.footer-wordmark span { color:#756b61; }
.footer-groups details { border-color:#cfc5b7; }
.footer-groups details>div { color:#4e554e; }
.footer-groups a:hover,.footer-groups button:hover { color:var(--burgundy); }
.footer-bottom { color:#676e65; border-color:#cfc5b7; }
dialog { background:#fffdf9; color:var(--charcoal); }
#water-dialog { background:#fffdf9; }

/* Dedicated secondary-treatment page: full substance without homepage sprawl. */
.mineral-detail-page { background:#fbfaf6; color:var(--charcoal); }
.detail-header nav { display:flex; }
.detail-breadcrumb { display:flex; justify-content:space-between; gap:20px; padding:22px var(--pad); font-size:10px; letter-spacing:.12em; color:#78685c; border-bottom:1px solid #ddd1c3; }
.detail-breadcrumb a { color:var(--burgundy); }
.detail-hero { display:grid; grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); background:#f0e9df; }
.detail-hero figure { margin:0; overflow:hidden; max-height:750px; }
.detail-hero figure img { display:block; width:100%; height:100%; min-height:620px; object-fit:cover; object-position:center 46%; }
.detail-hero-copy { align-self:center; padding:60px clamp(34px,6vw,110px); }
.detail-hero-copy h1 { font-size:clamp(60px,6vw,94px); line-height:.98; margin:0 0 21px; }
.detail-lead { font:32px/1.25 var(--serif); color:#574348; }
.detail-hero-copy>p:not(.eyebrow):not(.detail-lead):not(.detail-price):not(.detail-small) { max-width:600px; font-size:15px; line-height:1.75; margin:17px 0; }
.detail-hero-copy ul { margin:21px 0 23px; padding:0; list-style:none; border-top:1px solid #d5c9b9; }
.detail-hero-copy li { padding:9px 0; border-bottom:1px solid #d5c9b9; font-size:13px; }
.detail-hero-copy li::before { content:"↗"; color:var(--burgundy); margin-right:12px; }
.detail-price { font:48px/1.1 var(--serif); color:var(--burgundy); margin:18px 0 25px; }
.detail-price small { font:13px "DM Sans",sans-serif; color:#626962; }
.detail-small { font-size:11px; color:#6b7068; line-height:1.7; margin:18px 0 0; }
.detail-story { display:grid; grid-template-columns:1fr 1fr; gap:10%; padding:83px var(--pad); background:#fffdf9; }
.detail-story h2,.detail-formulation h2,.detail-use h2,.detail-faq h2,.detail-return h2 { font-size:clamp(45px,4.6vw,76px); line-height:1.06; }
.detail-story p:not(.eyebrow) { font-size:15px; line-height:1.85; color:#565b55; }
.detail-formulation { padding:85px var(--pad); background:#f5f0e8; }
.detail-ingredient-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px; margin-top:40px; }
.detail-ingredient-grid article { border-top:2px solid var(--burgundy); padding:24px; background:#fffdf9; }
.detail-ingredient-grid span { font-size:10px; color:var(--burgundy); letter-spacing:.16em; }
.detail-ingredient-grid h3 { font:32px/1.1 var(--serif); margin:18px 0 13px; }
.detail-ingredient-grid p { font-size:13px; line-height:1.7; color:#595e57; }
.detail-gallery { display:grid; grid-template-columns:1fr 1fr; gap:0; margin-top:45px; }
.detail-gallery figure { margin:0; background:#e5ddd1; }
.detail-gallery img { width:100%; height:420px; object-fit:cover; display:block; }
.detail-gallery figcaption { display:none; }
.detail-use { display:grid; grid-template-columns:1fr 1fr; gap:5%; padding:70px var(--pad); background:#fffdf9; }
.detail-use ol { margin:0; padding-left:27px; }
.detail-use li { font:27px/1.4 var(--serif); margin-bottom:15px; }
.detail-use .detail-small { grid-column:2; margin-top:0; }
.detail-faq { padding:80px var(--pad); background:#f5f0e8; }
.detail-faq h2 { margin-bottom:30px; }
.detail-faq details { border-top:1px solid #cfc5b7; padding:0; }
.detail-faq details:last-child { border-bottom:1px solid #cfc5b7; }
.detail-faq summary { padding:23px 0; font:27px/1.3 var(--serif); cursor:pointer; }
.detail-faq details p { font-size:14px; line-height:1.8; max-width:840px; padding:0 0 23px; }
.detail-return { text-align:center; padding:75px var(--pad); background:#fffdf9; }
.detail-return p:not(.eyebrow) { max-width:550px; margin:20px auto 30px; color:#555a54; font-size:15px; }
.detail-return>div { display:flex; justify-content:center; gap:15px; flex-wrap:wrap; }
.detail-footer { display:flex; justify-content:space-between; flex-wrap:wrap; gap:15px; padding:30px var(--pad); background:#f5efe6; border-top:1px solid #d5cbbe; font-size:11px; letter-spacing:.08em; }
.detail-footer a { color:var(--burgundy); }

@media(max-width:1000px) {
  .secondary-grid { grid-template-columns:1fr; }
  .secondary-intro { grid-template-columns:1fr; gap:15px; }
  #marylebone.method-feature { grid-template-columns:1fr 1fr; }
  .method-copy { padding:55px 34px; }
  .method-principles { grid-template-columns:1fr; gap:11px; }
  .method-principles div { display:flex; align-items:baseline; gap:12px; }
  .method-principles strong { font-size:21px; }
  .detail-ingredient-grid { grid-template-columns:repeat(2,1fr); }
}
@media(max-width:800px) {
  #marylebone.method-feature { grid-template-columns:1fr; }
  .method-architecture { min-height:0; height:340px; }
  .method-architecture img { min-height:0; height:340px; }
  #access.founding-access { grid-template-columns:1fr; gap:28px; }
  .detail-hero { grid-template-columns:1fr; }
  .detail-hero figure { max-height:380px; }
  .detail-hero figure img { min-height:0; height:380px; }
  .detail-hero-copy { padding:55px 30px; }
  .detail-story,.detail-use { grid-template-columns:1fr; gap:25px; }
  .detail-use .detail-small { grid-column:1; }
}
@media(max-width:700px) {
  .header nav { background:#fbfaf6; }
  body #home.reset-opening { min-height:0; }
  body #home.reset-opening>.institution-hero-copy { padding:40px 23px 31px; }
  body #home.reset-opening h1 { font-size:clamp(38px,10.2vw,54px); }
  body #home.reset-opening>.architecture-hero { height:260px; }
  .architecture-hero img { height:260px; min-height:0; }
  #insiders-guide.insider-guide { padding:49px 22px 55px; }
  .guide-intro { grid-template-columns:1fr; gap:10px; }
  .guide-intro h2 { font-size:clamp(42px,11.5vw,58px); }
  .guide-intro>p:last-child { font-size:23px; }
  .guide-insights { margin-top:25px; gap:10px; }
  .guide-insights article { padding:18px 20px 20px; }
  .guide-insights h3 { font-size:29px; margin:12px 0 8px; }
  .guide-insights p { font-size:13px; line-height:1.55; }
  .guide-conclusion { margin-top:10px; padding-top:22px; }
  .guide-conclusion .button { margin-top:14px; }
  .renewal-image img { height:350px; min-height:0; }
  .renewal-copy { padding:38px 23px 46px; }
  .renewal-copy h2 { font-size:clamp(42px,10.5vw,56px); }
  .renewal-copy .renewal-lead { font-size:23px; }
  .renewal-copy>p:not(.eyebrow):not(.renewal-lead):not(.concept-note) { font-size:13px; line-height:1.7; }
  .renewal-footer strong { font-size:48px; }
  .method-copy { padding:55px 23px 43px; }
  .method-copy h2 { font-size:clamp(43px,10.6vw,59px); }
  .method-founder { font-size:14px; line-height:1.75; }
  .method-principles { margin-top:25px; padding-top:18px; }
  .method-architecture,.method-architecture img { height:260px; }
  #treatments.secondary-treatments { padding:53px 22px 58px; }
  .secondary-intro { margin-bottom:27px; }
  .secondary-intro h2 { font-size:clamp(41px,10.7vw,58px); }
  .secondary-intro p:last-child { font-size:13px; }
  .secondary-grid { gap:15px; }
  body #product-story.mineral-card { grid-template-columns:1fr; }
  .mineral-card-photo { min-height:0; height:390px; }
  .mineral-card-photo img { height:390px; object-position:center 51%; }
  .mineral-card-copy { padding:25px 22px 28px; }
  .mineral-card h3 { font-size:43px; }
  #water-explore.water-card { padding:29px 20px; }
  #water-explore.water-card h3 { font-size:41px; }
  #water-explore.water-card>p:not(.eyebrow) { font-size:13px; margin-bottom:18px; }
  #water-explore.water-card .reset-input-row { flex-direction:column; }
  #water-explore.water-card .reset-input-row input { width:100%; flex:none; }
  #water-explore.water-card .reset-input-row button { width:100%; }
  #access.founding-access { padding:54px 22px 61px; gap:28px; }
  #access.founding-access .access-copy h2 { font-size:clamp(43px,11vw,59px); }
  #access.founding-access .access-copy p:not(.eyebrow) { font-size:14px; }
  body #access.founding-access .signup { padding:28px 21px; }
  body #access.founding-access .signup h3 { font-size:34px; }
  .brand-footer { padding:45px 22px 25px; }
  .footer-wordmark { margin-bottom:33px; }
  .detail-header nav { display:none; }
  .detail-breadcrumb { padding:17px 22px; font-size:9px; }
  .detail-breadcrumb span { display:none; }
  .detail-hero figure,.detail-hero figure img { height:310px; }
  .detail-hero-copy { padding:40px 23px 51px; }
  .detail-hero-copy h1 { font-size:clamp(54px,14vw,76px); }
  .detail-lead { font-size:26px; }
  .detail-story,.detail-formulation,.detail-use,.detail-faq,.detail-return { padding:54px 23px; }
  .detail-story h2,.detail-formulation h2,.detail-use h2,.detail-faq h2,.detail-return h2 { font-size:45px; }
  .detail-ingredient-grid { grid-template-columns:1fr; gap:10px; margin-top:27px; }
  .detail-gallery { grid-template-columns:1fr; }
  .detail-gallery img { height:280px; }
  .detail-use li { font-size:25px; }
  .detail-faq summary { font-size:24px; }
  .detail-return>div .button { width:100%; }
  .detail-footer { padding:25px 23px; }
}

/* V79 — a three-chapter editorial insider briefing rather than generic tip cards. */
#insiders-guide.insider-guide { background:#fcfaf6; padding:78px var(--pad) 72px; }
.brief-head,.briefing-stage,.brief-controls,.brief-signoff { max-width:1300px; margin-left:auto; margin-right:auto; }
.brief-topline { display:flex; justify-content:space-between; gap:20px; border-top:1px solid #b5a69b; padding:16px 0 26px; font-size:10px; line-height:1.5; letter-spacing:.17em; color:#79565a; font-weight:600; }
.brief-head h2 { font:500 clamp(55px,6.4vw,103px)/.93 var(--serif); letter-spacing:-.04em; color:#282926; margin:0; }
.brief-head h2 em { color:#713d46; font-weight:400; }
.brief-head>p { font:27px/1.35 var(--serif); color:#5c514f; max-width:630px; margin:22px 0 0; }
.briefing-stage { display:grid; grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr); min-height:475px; margin-top:38px; background:#fffdfa; border:1px solid #d8cfc4; }
.brief-main { min-width:0; }
.brief-card { padding:60px clamp(32px,5vw,80px); border-left:4px solid #713d46; min-height:475px; box-sizing:border-box; display:flex; flex-direction:column; justify-content:center; }
.brief-index { font:600 10px/1.3 'DM Sans',Arial,sans-serif; letter-spacing:.19em; color:#8a555a; }
.brief-card h3 { font:500 clamp(43px,4.1vw,67px)/1.01 var(--serif); letter-spacing:-.03em; max-width:640px; color:#262b27; margin:25px 0 22px; }
.brief-card h3 em { color:#773e47; font-style:italic; }
.brief-card>p { max-width:560px; font-size:15px; line-height:1.8; color:#555b55; margin:0; }
.brief-takeaway { display:block; font:600 10px/1.5 'DM Sans',Arial,sans-serif; color:#783e48; letter-spacing:.14em; border-top:1px solid #d5c9bd; padding-top:23px; margin-top:29px; }
.brief-visual { position:relative; background:radial-gradient(circle at 70% 25%,#9d6c6d 0%,#76454c 36%,#512a33 100%); color:#fdf9f1; overflow:hidden; }
.brief-visual::after { content:''; position:absolute; inset:22px; border:1px solid #e7c9a85a; pointer-events:none; }
.brief-graphic { position:relative; z-index:1; padding:47px clamp(32px,5vw,72px) 43px; min-height:475px; box-sizing:border-box; display:flex; flex-direction:column; justify-content:space-between; }
.graphic-overline { color:#ecd7be; font-size:10px; font-weight:600; letter-spacing:.18em; }
.graphic-mark { font:400 clamp(130px,15vw,260px)/.75 var(--serif); letter-spacing:-.09em; margin:16px 0; color:#f6e9db; }
.graphic-mark span { font-size:.55em; vertical-align:top; }
.graphic-mark.graphic-formula { font-size:clamp(90px,10vw,145px); letter-spacing:-.035em; }
.graphic-stack,.graphic-factors,.graphic-overlap { display:grid; gap:8px; max-width:390px; }
.graphic-stack span,.graphic-factors span,.graphic-overlap span { border-top:1px solid #ead6c57a; padding-top:7px; font:500 10px/1.2 'DM Sans',Arial,sans-serif; letter-spacing:.13em; }
.graphic-factors { grid-template-columns:1fr; }
.graphic-overlap { grid-template-columns:1fr 1fr 1fr; gap:6px; }
.graphic-overlap span { font-size:9px; }
.brief-graphic>p { color:#ecd4ba; font-size:10px; letter-spacing:.17em; padding-top:15px; margin:0; }
.brief-interactive .brief-card:not(.is-current),.brief-interactive .brief-graphic:not(.is-current) { display:none; }
.brief-interactive .brief-card.is-current,.brief-interactive .brief-graphic.is-current { animation:brief-reveal .35s ease both; }
@keyframes brief-reveal { from { opacity:.2; transform:translateY(8px); } to { opacity:1; transform:translateY(0); } }
.brief-controls { display:none; gap:24px; justify-content:space-between; align-items:center; padding:23px 0 30px; border-bottom:1px solid #d8ccc0; }
.brief-interactive .brief-controls { display:flex; }
.brief-reading { color:#673e46; font-size:10px; letter-spacing:.15em; white-space:nowrap; }
.brief-reading strong { font-size:14px; }
.brief-stepper { display:flex; flex:1; max-width:330px; gap:7px; }
.brief-stepper button { flex:1; cursor:pointer; border:0; background:#dfd6cd; border-top:3px solid #d2c7b9; padding:12px 0 7px; font-size:10px; color:#655c53; text-align:left; }
.brief-stepper button span { padding-left:10px; }
.brief-stepper button[aria-pressed=true] { background:#eadfd4; border-top-color:#713d46; color:#713d46; }
.brief-arrows { display:flex; gap:8px; }
.brief-arrows button { cursor:pointer; border:1px solid #a89186; min-height:42px; padding:10px 15px; background:transparent; color:#60383f; font-size:10px; font-weight:600; letter-spacing:.1em; }
.brief-arrows button:disabled { cursor:default; opacity:.3; }
.brief-arrows [data-brief-next] { min-width:148px; }
.brief-signoff { display:flex; align-items:center; justify-content:space-between; gap:28px; padding-top:29px; }
.brief-signoff span { font-size:10px; color:#814b52; letter-spacing:.15em; }
.brief-signoff p { font:500 clamp(28px,3.1vw,44px)/1.05 var(--serif); letter-spacing:-.025em; color:#333734; margin:9px 0 0; }
.brief-signoff p em { color:#733e49; }
.brief-signoff .button { flex-shrink:0; }
@media(max-width:860px) {
  .briefing-stage { grid-template-columns:1fr; }
  .brief-card { min-height:390px; }
  .brief-graphic { min-height:330px; }
  .graphic-mark { font-size:180px; }
  .graphic-mark.graphic-formula { font-size:110px; }
}
@media(max-width:700px) {
  #insiders-guide.insider-guide { padding:47px 22px 52px; }
  .brief-topline { gap:8px; padding:10px 0 22px; font-size:8px; letter-spacing:.09em; }
  .brief-topline span:last-child { text-align:right; }
  .brief-head h2 { font-size:clamp(46px,11.5vw,61px); }
  .brief-head>p { font-size:22px; line-height:1.3; margin-top:18px; }
  .briefing-stage { margin-top:27px; }
  .brief-card { padding:36px 23px 35px; min-height:400px; border-left-width:3px; }
  .brief-card h3 { font-size:clamp(43px,11.2vw,57px); margin:25px 0 20px; }
  .brief-card>p { font-size:13px; line-height:1.7; }
  .brief-takeaway { font-size:9px; margin-top:20px; padding-top:18px; }
  .brief-graphic { padding:34px 40px 28px; min-height:285px; }
  .brief-visual::after { inset:12px; }
  .graphic-mark { font-size:130px; margin:15px 0; }
  .graphic-mark.graphic-formula { font-size:83px; }
  .graphic-stack,.graphic-factors,.graphic-overlap { gap:4px; }
  .graphic-stack span,.graphic-factors span,.graphic-overlap span { font-size:8px; }
  .brief-controls { gap:15px; flex-wrap:wrap; padding:19px 0; }
  .brief-reading { width:100%; }
  .brief-stepper { max-width:none; }
  .brief-arrows button { min-height:42px; padding:10px 11px; }
  .brief-arrows [data-brief-next] { min-width:126px; }
  .brief-signoff { display:block; padding-top:26px; }
  .brief-signoff p { font-size:37px; margin:7px 0 20px; }
  .brief-signoff .button { width:100%; }
}
@media(prefers-reduced-motion:reduce) { .brief-interactive .brief-card.is-current,.brief-interactive .brief-graphic.is-current { animation:none; } }

/* V80 — the Institution is defined by problem-led science, not an advertising guide. */
body #home.reset-opening { min-height:790px; }
body #home.reset-opening > .institution-hero-copy { padding-block:60px 52px; }
body #home.reset-opening h1 { font-size:clamp(48px,4.45vw,72px); }
body #home.reset-opening .hero-deck { margin-top:21px; max-width:560px; }
.hero-water-anchor { width:100%; max-width:575px; margin-top:29px; scroll-margin-top:112px; }
body #home.reset-opening .hero-diagnostic { display:block; margin:0; padding:22px 24px 21px; border:1px solid #cfc2b3; background:#fffdf9; max-width:none; width:100%; }
body #home.reset-opening .hero-diagnostic label { display:block; color:#76454b; font-size:10px; line-height:1.5; font-weight:600; letter-spacing:.15em; }
body #home.reset-opening .hero-diagnostic .hero-form-intro { margin:9px 0 17px; color:#535a53; font-size:13px; line-height:1.65; }
body #home.reset-opening .hero-diagnostic .reset-input-row { display:flex; gap:0; width:100%; border:1px solid #c4b8a8; }
body #home.reset-opening .hero-diagnostic .reset-input-row input { flex:1 1 150px; width:0; min-width:0; min-height:55px; border:0; border-radius:0; background:#fff; padding:14px; color:#252e29; font-size:14px; }
body #home.reset-opening .hero-diagnostic .reset-input-row button { flex:0 0 auto; min-height:55px; border:0; background:#593a40; color:#fff; padding:12px 17px; font-size:10px; letter-spacing:.06em; font-weight:600; }
body #home.reset-opening .hero-diagnostic #hero-water-note { margin:12px 0 0; font-size:10px; color:#777267; line-height:1.4; }
.checker-kicker { margin:0 0 8px; font-size:9px; font-weight:600; line-height:1.4; letter-spacing:.17em; color:#774b53; }
body #home.reset-opening .checker-heading { margin:0 0 7px; font:500 31px/1.12 var(--serif); letter-spacing:-.015em; color:#343630; }
body #home.reset-opening .hero-diagnostic label { margin:13px 0 8px; }
body #home.reset-opening .hero-actions { margin-top:15px; }
body #home.reset-opening .hero-proof { margin-top:18px; }
body #home.reset-opening .architecture-hero img { min-height:790px; }

/* The first serum is the dominant, fully explained product story. */
#mineral-reset.mineral-focus { padding:55px var(--pad) 83px; background:#fcfaf5; color:#30332f; scroll-margin-top:85px; }
.focus-introduction { display:flex; align-items:center; justify-content:space-between; gap:18px; width:min(1320px,100%); margin:0 auto 30px; padding:17px 0 0; border-top:1px solid #c9bcb0; color:#73545a; font-size:10px; font-weight:600; letter-spacing:.17em; }
.mineral-focus-grid { display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); width:min(1320px,100%); margin:auto; background:#eee8df; min-height:720px; }
.focus-bottle { min-width:0; min-height:720px; margin:0; overflow:hidden; background:#ded4c8; }
.focus-bottle img { display:block; height:100%; width:100%; object-fit:cover; object-position:center 49%; }
.focus-science { padding:56px clamp(32px,5vw,79px); display:flex; flex-direction:column; justify-content:center; }
.focus-science .eyebrow { margin:0 0 20px; color:#84505a; }
.focus-science h2 { font:500 clamp(55px,5vw,83px)/.98 var(--serif); letter-spacing:-.035em; margin:0 0 15px; }
.focus-science h2 em { color:#753f4a; }
.focus-lead { font:29px/1.24 var(--serif); color:#634d50; margin:0 0 29px; }
.science-explained { border-top:1px solid #c9bdaf; }
.science-explained>div { display:grid; grid-template-columns:125px minmax(0,1fr); gap:25px; border-bottom:1px solid #c9bdaf; padding:16px 0; align-items:start; }
.science-explained>div>span { font-size:9px; line-height:1.5; font-weight:600; letter-spacing:.13em; color:#75434c; padding-top:4px; }
.science-explained p { font-size:13px; line-height:1.73; color:#535a53; margin:0; }
.science-explained p strong { color:#403e3a; font-weight:600; }
.focus-action { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; margin-top:28px; }
.focus-action>div>span { display:block; font-size:9px; letter-spacing:.14em; color:#7b7064; margin-bottom:6px; }
.focus-action strong { display:block; font:50px/.95 var(--serif); color:#53383d; }
.focus-action .button { min-height:55px; text-align:center; }

/* The second treatment follows with its own problem/science/outcome narrative. */
#xso-01.renewal-treatment { min-height:715px; background:#f5f0e8; }
#xso-01 .renewal-image img { min-height:715px; }
#xso-01 .renewal-copy { padding-block:52px; }
#xso-01 .renewal-copy h2 { font-size:clamp(51px,4.1vw,74px); margin-bottom:16px; }
#xso-01 .renewal-copy .renewal-lead { margin-bottom:25px; }
#xso-01 .renewal-science>div { grid-template-columns:119px minmax(0,1fr); }
#xso-01 .renewal-footer { margin-top:29px; }

/* The method explains what both products have in common. */
#marylebone.method-feature { background:#fbf9f4; }
#marylebone .method-copy { padding-block:71px; }
#marylebone .method-principles { gap:13px; }
#marylebone .method-principles strong { font-size:21px; }

/* The ad's insider hook is an optional small editorial note, not a site chapter. */
#insiders-guide.insider-teaser { display:grid; grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr); gap:40px; align-items:center; padding:39px var(--pad); background:#eee7dc; color:#30332f; scroll-margin-top:85px; border-block:1px solid #d6c9bb; }
.teaser-intro>span { color:#814c54; font-size:9px; font-weight:600; letter-spacing:.16em; }
.teaser-intro h2 { font:500 clamp(34px,3.4vw,48px)/1.07 var(--serif); margin:11px 0 9px; }
.teaser-intro h2 em { color:#7a414b; }
.teaser-intro p { font-size:13px; color:#565d55; line-height:1.55; margin:0; }
.teaser-details { border-top:1px solid #bfae9f; border-bottom:1px solid #bfae9f; }
.teaser-details summary { display:flex; justify-content:space-between; align-items:center; gap:15px; cursor:pointer; padding:20px 0; color:#6f3945; font-size:10px; font-weight:600; letter-spacing:.14em; list-style:none; }
.teaser-details summary::-webkit-details-marker { display:none; }
.teaser-details[open] summary span { transform:rotate(45deg); }
.teaser-details ol { margin:0; padding:0 0 21px 21px; }
.teaser-details li { margin:0 0 13px; font-size:12px; line-height:1.7; color:#555b54; }
.teaser-details strong { color:#413b39; }

@media(max-width:1100px) {
  body #home.reset-opening { min-height:750px; }
  body #home.reset-opening h1 { font-size:clamp(43px,4.65vw,58px); }
  body #home.reset-opening .architecture-hero img { min-height:750px; }
  .focus-science { padding:45px 35px; }
  .science-explained>div,#xso-01 .renewal-science>div { grid-template-columns:100px minmax(0,1fr); gap:15px; }
}
@media(max-width:800px) {
  body #home.reset-opening { min-height:0; }
  body #home.reset-opening .architecture-hero img { min-height:0; }
  .mineral-focus-grid { grid-template-columns:1fr; }
  .focus-bottle { min-height:0; height:480px; }
  .focus-bottle img { height:480px; object-position:center 47%; }
  .focus-science { padding:50px 36px; }
  #xso-01 .renewal-image img { min-height:0; height:470px; }
  #insiders-guide.insider-teaser { grid-template-columns:1fr; gap:20px; }
}
@media(max-width:700px) {
  body #home.reset-opening>.institution-hero-copy { padding:41px 23px 33px; }
  body #home.reset-opening h1 { font-size:clamp(42px,10vw,54px); }
  body #home.reset-opening .hero-deck { font-size:13px; line-height:1.65; }
  .hero-water-anchor { margin-top:24px; }
  body #home.reset-opening .hero-diagnostic { padding:20px 18px; }
  body #home.reset-opening .hero-diagnostic .reset-input-row { flex-direction:column; }
  body #home.reset-opening .hero-diagnostic .reset-input-row input { width:100%; flex:0 0 auto; }
  body #home.reset-opening .hero-diagnostic .reset-input-row button { min-height:52px; width:100%; }
  body #home.reset-opening .hero-actions { margin-top:11px; }
  body #home.reset-opening .hero-proof { margin-top:17px; }
  #mineral-reset.mineral-focus { padding:34px 0 0; }
  .focus-introduction { padding:0 22px; margin-bottom:21px; flex-wrap:wrap; font-size:9px; gap:7px; border:0; }
  .focus-introduction span:last-child { color:#817a70; font-size:8px; }
  .focus-bottle { height:385px; }
  .focus-bottle img { height:385px; object-position:center 51%; }
  .focus-science { padding:37px 23px 48px; }
  .focus-science h2 { font-size:clamp(56px,13.2vw,76px); }
  .focus-lead { font-size:26px; margin-bottom:24px; }
  .science-explained>div,#xso-01 .renewal-science>div { display:block; padding:16px 0; }
  .science-explained>div>span { display:block; margin-bottom:6px; padding:0; }
  .science-explained p { font-size:13px; line-height:1.65; }
  .focus-action { display:block; }
  .focus-action .button { width:100%; margin-top:19px; }
  #xso-01 .renewal-image img { height:345px; }
  #xso-01 .renewal-copy { padding:39px 23px 48px; }
  #xso-01 .renewal-copy h2 { font-size:clamp(45px,10.7vw,60px); }
  #xso-01 .renewal-copy .renewal-lead { font-size:25px; }
  #marylebone .method-copy { padding:49px 23px 40px; }
  #insiders-guide.insider-teaser { padding:34px 23px; }
  .teaser-intro h2 { font-size:38px; }
  #access .access-copy h2 { font-size:clamp(43px,11vw,59px); }
}

/* V83 — the hero explicitly links hard-water concerns to a simple postcode
   check, with a distinct small pill action and no box-button amalgam. */
@media(max-width:700px) {
  body #home.reset-opening {
    display:flex;
    flex-direction:column;
    gap:0;
    min-height:0;
    padding:0;
    overflow:visible;
    isolation:auto;
    background:#fbfaf6;
  }
  body #home.reset-opening>.architecture-hero {
    order:0;
    position:relative;
    inset:auto;
    display:block;
    width:100%;
    height:clamp(245px,69vw,330px);
    min-height:0;
    margin:0;
    z-index:auto;
    overflow:hidden;
    background:#e6dcd0;
  }
  body #home.reset-opening .architecture-hero img {
    display:block;
    width:100%;
    height:100%;
    min-height:0;
    object-fit:cover;
    object-position:30% 51%;
  }
  body #home.reset-opening::after { display:none; }
  body #home.reset-opening>.institution-hero-copy {
    order:1;
    position:relative;
    z-index:auto;
    min-height:0;
    display:block;
    padding:27px 24px 37px;
    background:#fbfaf6;
    color:#30332f;
  }
  body #home.reset-opening .eyebrow { margin-bottom:14px; color:#6e484c; text-shadow:none; }
  /* Yas-approved Institution positioning stays visible on mobile as well. */
  body #home.reset-opening .hero-signature { display:block; margin:0 0 13px; font-size:11px; line-height:1.5; color:#665e59; }
  body #home.reset-opening h1 { color:#30332f; font-size:clamp(39px,9.8vw,51px); line-height:1.02; text-shadow:none; }
  body #home.reset-opening h1 em { color:#774a51; }
  body #home.reset-opening .hero-deck { margin-top:13px; color:#51554e; font-size:12.5px; line-height:1.55; text-shadow:none; }
  .hero-water-anchor { margin-top:22px; padding-top:19px; border-top:1px solid #d9c9ba; }
  body #home.reset-opening .hero-diagnostic {
    padding:0;
    background:transparent;
    border:0;
    box-shadow:none;
  }
  body #home.reset-opening .checker-kicker { color:#805058; font-size:9px; margin-bottom:5px; }
  body #home.reset-opening .checker-heading { color:#333630; font-size:32px; margin:0 0 7px; }
  body #home.reset-opening .hero-diagnostic .hero-form-intro { margin:0 0 15px; font-size:12px; line-height:1.55; }
  body #home.reset-opening .hero-diagnostic label { margin:0 0 7px; font-size:9px; color:#696159; }
  body #home.reset-opening .hero-diagnostic .reset-input-row {
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:13px;
    border:0;
  }
  body #home.reset-opening .hero-diagnostic .reset-input-row input {
    box-sizing:border-box;
    display:block;
    width:100%;
    min-height:52px;
    flex:0 0 auto;
    border:1px solid #c9bdb0;
    border-radius:3px;
    background:#fff;
  }
  body #home.reset-opening .hero-diagnostic .reset-input-row button {
    box-sizing:border-box;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    width:max-content;
    min-width:0;
    min-height:44px;
    height:44px;
    flex:0 0 auto;
    align-self:flex-start;
    padding:0 21px;
    border-radius:999px;
    background:#5c3841;
    color:#fffdf8;
    font-size:10px;
    letter-spacing:.06em;
  }
  body #home.reset-opening .hero-diagnostic .reset-input-row button span { font-size:15px; line-height:1; }
  body #home.reset-opening .hero-diagnostic #hero-water-note { margin-top:10px; color:#706b66; }
  body #home.reset-opening .hero-actions { margin-top:8px; }
  body #home.reset-opening .institution-quiet-link { color:#76464c; border-color:#bea999; }
  body #home.reset-opening .hero-proof { display:none; }
}

/* The visitor journey is fixed: Institution, Treatment 01 with the water
   checker, then Treatment 02. Keep the approved Institution hero copy intact. */
body #home.reset-opening { min-height:635px; }
body #home.reset-opening .architecture-hero img { min-height:635px; }
body #home.reset-opening .hero-collection-links { gap:10px 26px; margin-top:22px; }
body #home.reset-opening .hero-collection-links .institution-quiet-link { font-size:10px; font-weight:600; letter-spacing:.11em; white-space:nowrap; }

#mineral-reset .mineral-checker { scroll-margin-top:85px; max-width:610px; width:100%; margin:23px 0 27px; background:#fbf8f1; border-top:2px solid #815963; padding:21px 23px 20px; }
#mineral-reset .hero-diagnostic { display:block; width:100%; max-width:none; margin:0!important; }
#mineral-reset .checker-kicker { margin:0 0 7px; color:#82545c; font-size:9px; font-weight:600; letter-spacing:.14em; }
#mineral-reset .checker-heading { margin:0 0 7px; font:500 clamp(27px,2.5vw,34px)/1.08 var(--serif); letter-spacing:-.02em; color:#333630; }
#mineral-reset .hero-form-intro { max-width:470px; margin:0 0 17px; color:#565953; font-size:12px; line-height:1.6; }
#mineral-reset .hero-diagnostic label { display:block; margin:0 0 8px; color:#674d50; font-size:9px; font-weight:600; letter-spacing:.14em; }
#mineral-reset .reset-input-row { display:flex; align-items:center; gap:12px; width:100%; border:0; background:transparent; }
#mineral-reset .reset-input-row input { box-sizing:border-box; flex:1 1 220px; min-width:0; width:100%; height:51px; border:1px solid #c8b9ad; border-radius:3px; padding:12px 14px; background:#fff; color:#2c302e; font-size:14px; }
#mineral-reset .reset-input-row button { display:inline-flex; align-items:center; justify-content:center; gap:9px; flex:0 0 auto; width:auto; min-height:43px; padding:0 19px; border:0; border-radius:999px; background:#5c3841; color:#fff; font-size:10px; font-weight:600; letter-spacing:.045em; cursor:pointer; }
#mineral-reset .reset-input-row button span { margin:0; font-size:14px; }
#mineral-reset #hero-water-note { margin:11px 0 0; color:#746e65; font-size:10px; line-height:1.5; }

@media(max-width:700px) {
  /* The first screen should identify a skincare brand, with Treatment 01's
     actual bottle appearing immediately below—not a property-style photo. */
  body #home.reset-opening { min-height:0; }
  body #home.reset-opening>.architecture-hero { display:none; }
  body #home.reset-opening>.institution-hero-copy { padding:29px 24px 30px; }
  body #home.reset-opening h1 { font-size:clamp(37px,9.4vw,48px); line-height:1.01; }
  body #home.reset-opening .hero-deck { margin-top:11px; font-size:12px; line-height:1.5; }
  body #home.reset-opening .hero-collection-links { display:flex; flex-direction:row; flex-wrap:wrap; align-items:center; gap:4px 20px; margin-top:13px; }
  body #home.reset-opening .hero-collection-links .institution-quiet-link { width:auto; font-size:9px; padding:9px 0; }
  #mineral-reset.mineral-focus { padding-top:23px; }
  #mineral-reset .focus-introduction { margin-bottom:15px; }
  #mineral-reset .focus-bottle, #mineral-reset .focus-bottle img { height:310px; }
  #mineral-reset .focus-science { padding:30px 24px 44px; }
  #mineral-reset .mineral-checker { margin:19px 0 24px; padding:18px 17px; }
  #mineral-reset .reset-input-row { flex-direction:column; align-items:stretch; gap:12px; }
  #mineral-reset .reset-input-row input { flex:0 0 auto; width:100%; min-height:51px; }
  #mineral-reset .reset-input-row button { align-self:flex-start; min-height:43px; }
}