/* Aetheris Research — design system
   Editorial laboratory catalog aesthetic: dark ink on warm paper, one accent. */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --paper: #F4EFE4;
  --paper-alt: #EAE2D0;
  --paper-deep: #DFD5BE;
  --ink: #1B1912;
  --ink-soft: #3F3B31;
  --ink-faint: #6E6858;
  --line: #D3C7AC;
  --line-soft: #E3D9C2;
  --copper: #A85A2A;
  --copper-dark: #8A481F;
  --teal: #1E4643;
  --teal-dark: #163634;
  --warn-bg: #F1E4D3;
  --white: #FFFDF8;
  --focus: #1E4643;
  --radius: 2px;
  --maxw: 1180px;
  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

*, *::before, *::after{ box-sizing: border-box; }
#site-header{ display: contents; }
html{ background: var(--paper); }
body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; }
h1,h2,h3,h4{ font-family: var(--serif); font-weight: 500; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1{ font-size: clamp(2.1rem, 4vw, 3.4rem); font-weight: 500; }
h2{ font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3{ font-size: 1.25rem; }
p{ margin: 0 0 1em; color: var(--ink-soft); }
.mono{ font-family: var(--mono); }
.eyebrow{
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .72rem;
  color: var(--copper);
  font-weight: 500;
}
.lede{ font-size: 1.1rem; color: var(--ink-soft); max-width: 60ch; }

.container{ max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section{ padding: 64px 0; }
.section-tight{ padding: 40px 0; }
.hairline{ border: none; border-top: 1px solid var(--line); margin: 0; }

/* ---------- RUO persistent banner ---------- */
.ruo-banner{
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .04em;
  text-align: center;
  padding: 8px 16px;
  position: relative;
  z-index: 60;
}
.ruo-banner strong{ color: var(--copper); font-weight: 600; }

/* ---------- Header / nav ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 76px;
}
.brand{
  display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink);
}
.brand-icon{ width:32px; height:32px; flex:none; }
.brand-text{ display:flex; flex-direction:column; gap:1px; line-height:1; }
.brand-word{ font-family: var(--sans); font-weight:800; font-size:1.05rem; letter-spacing:-0.01em; text-transform:uppercase; line-height:1; }
.brand-word-sub{ font-family: var(--sans); font-weight:700; font-size:.62rem; letter-spacing:.15em; text-transform:uppercase; color: var(--ink-faint); line-height:1; }
.brand-mark{ font-family: var(--serif); font-size: 1.35rem; font-weight:600; letter-spacing: -.01em; }
.brand-sub{ font-family: var(--mono); font-size: .62rem; letter-spacing:.16em; text-transform:uppercase; color: var(--ink-faint); }
.main-nav{ display:flex; align-items:center; gap: 28px; }
.main-nav a{
  text-decoration:none; font-size:.92rem; color: var(--ink-soft); font-weight:500;
  padding: 6px 2px; border-bottom: 2px solid transparent;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ color: var(--ink); border-color: var(--copper); }
.nav-actions{ display:flex; align-items:center; gap: 16px; }
.cart-link{ display:flex; align-items:center; gap:6px; text-decoration:none; color:var(--ink); font-size:.9rem; font-weight:600; }
.cart-count{
  background: var(--copper); color:var(--white); font-family: var(--mono); font-size:.68rem;
  min-width:18px; height:18px; border-radius:9px; display:inline-flex; align-items:center; justify-content:center; padding:0 5px;
}
.nav-toggle{ display:none; }

@media (max-width: 880px){
  .main-nav{ position:fixed; inset: 76px 0 0 0; background: var(--paper); flex-direction:column; align-items:flex-start;
    padding: 24px; gap: 4px; transform: translateY(-8px); opacity:0; pointer-events:none; transition: opacity .15s ease, transform .15s ease; overflow:auto; }
  .main-nav.open{ opacity:1; pointer-events:auto; transform:none; }
  .main-nav a{ width:100%; padding: 12px 4px; border-bottom:1px solid var(--line-soft); }
  .nav-toggle{ display:inline-flex; background:none; border:1px solid var(--line); padding:8px 10px; font-family:var(--mono); font-size:.75rem; cursor:pointer; }
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family: var(--sans); font-weight:600; font-size:.92rem;
  padding: 13px 22px; border-radius: var(--radius); border: 1px solid transparent;
  text-decoration:none; cursor:pointer; transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary{ background: var(--ink); color: var(--paper); }
.btn-primary:hover{ background: var(--copper-dark); }
.btn-accent{ background: var(--copper); color: var(--white); }
.btn-accent:hover{ background: var(--copper-dark); }
.btn-outline{ background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover{ background: var(--ink); color: var(--paper); }
.btn-ghost{ background:transparent; color:var(--ink-soft); border-color: var(--line); }
.btn-ghost:hover{ border-color: var(--ink); color: var(--ink); }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:.45; cursor:not-allowed; }
.btn-sm{ padding: 8px 14px; font-size: .82rem; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible{
  outline: 3px solid var(--focus); outline-offset: 2px;
}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex; align-items:center; gap:6px; font-family: var(--mono); font-size:.68rem;
  letter-spacing:.06em; text-transform:uppercase; padding: 4px 9px; border:1px solid var(--line); color: var(--ink-soft);
  border-radius: 999px; background: var(--paper-alt);
}
.badge-ruo{ border-color: var(--copper); color: var(--copper-dark); background: #F6E9DA; }
.badge-teal{ border-color: var(--teal); color: var(--teal-dark); background: #E4ECEA; }

/* ---------- Cards / grid ---------- */
.grid{ display:grid; gap: 24px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px){ .grid-4{ grid-template-columns: repeat(2,1fr);} .grid-3{ grid-template-columns: repeat(2,1fr);} }
@media (max-width: 620px){ .grid-4, .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display:flex; flex-direction:column; gap:10px;
}
.product-card{ text-decoration:none; color: var(--ink); }
.product-card:hover{ border-color: var(--copper); }
.product-visual{
  aspect-ratio: 4/3; border: 1px solid var(--line-soft); background: var(--paper-alt);
  display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.product-visual svg{ width: 78%; height:78%; }
.product-name{ font-family: var(--serif); font-size:1.15rem; margin: 4px 0 0; }
.product-chem{ font-size:.85rem; color: var(--ink-faint); margin:0; }
.product-meta{ display:flex; flex-wrap:wrap; gap:6px; font-family: var(--mono); font-size:.72rem; color: var(--ink-soft); margin-top:4px; }
.product-meta span{ background: var(--paper-alt); border:1px solid var(--line-soft); padding:2px 7px; border-radius:3px; }
.product-price{ margin-top:auto; padding-top:8px; font-family: var(--mono); font-size:.85rem; color: var(--ink); border-top: 1px solid var(--line-soft); }

/* ---------- Variant selector & quantity stepper ---------- */
.variant-group{ margin: 4px 0 18px; }
.variant-label{ font-family: var(--mono); font-size:.7rem; text-transform:uppercase; letter-spacing:.08em; color: var(--ink-faint); display:block; margin-bottom:8px; }
.variant-pills{ display:flex; gap:8px; flex-wrap:wrap; }
.variant-pill{
  font-family: var(--sans); font-weight:600; font-size:.88rem; padding: 9px 16px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--white); color: var(--ink);
  cursor:pointer; transition: border-color .15s ease, background .15s ease, color .15s ease;
}
.variant-pill:hover{ border-color: var(--copper); }
.variant-pill[aria-pressed="true"]{ background: var(--ink); color: var(--paper); border-color: var(--ink); }
.variant-pill:disabled{ opacity:.4; cursor:not-allowed; }

.qty-stepper{ display:inline-flex; align-items:stretch; border:1px solid var(--line); border-radius: var(--radius); overflow:hidden; }
.qty-stepper button{
  background: var(--paper-alt); border:none; width:38px; font-size:1.1rem; font-family: var(--sans); color: var(--ink);
  cursor:pointer; line-height:1;
}
.qty-stepper button:hover{ background: var(--paper-deep); }
.qty-stepper button:disabled{ opacity:.4; cursor:not-allowed; }
.qty-stepper input{
  width:48px; border:none; border-left:1px solid var(--line); border-right:1px solid var(--line); text-align:center;
  font-family: var(--mono); font-size:.95rem; -moz-appearance:textfield;
}
.qty-stepper input::-webkit-outer-spin-button, .qty-stepper input::-webkit-inner-spin-button{ -webkit-appearance:none; margin:0; }

.buy-box{ display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.buy-box-price{ font-family: var(--mono); font-size:1.3rem; color: var(--ink); }
.buy-box-price .unit{ font-family: var(--sans); font-size:.78rem; color: var(--ink-faint); font-weight:500; }
.lead-time{ display:flex; align-items:center; gap:6px; font-size:.82rem; color: var(--teal-dark); }
.lead-time::before{ content:""; width:7px; height:7px; border-radius:50%; background: var(--teal); display:inline-block; }

/* ---------- Spec sheet / table ---------- */
.spec-table{ width:100%; border-collapse: collapse; }
.spec-table tr{ border-bottom: 1px solid var(--line-soft); }
.spec-table th, .spec-table td{ text-align:left; padding: 12px 4px; vertical-align: top; }
.spec-table th{ width: 220px; font-family: var(--mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color: var(--ink-faint); font-weight:500; }
.spec-table td{ font-size:.98rem; }

/* ---------- Forms ---------- */
.field{ display:flex; flex-direction:column; gap:6px; margin-bottom: 18px; }
.field label{ font-size:.85rem; font-weight:600; color: var(--ink); }
.field .hint{ font-size:.78rem; color: var(--ink-faint); }
input[type="text"], input[type="email"], input[type="number"], input[type="tel"], select, textarea{
  font-family: var(--sans); font-size: .95rem; padding: 11px 12px; border:1px solid var(--line); border-radius: var(--radius);
  background: var(--white); color: var(--ink);
}
textarea{ resize: vertical; min-height: 110px; }
.checkbox-row{ display:flex; gap:10px; align-items:flex-start; }
.checkbox-row input{ margin-top:4px; width:16px; height:16px; flex:none; }
.checkbox-row label{ font-size:.92rem; color: var(--ink-soft); }

/* ---------- Cart lines ---------- */
.cart-line{ flex-direction: row; align-items: center; gap: 18px; flex-wrap: wrap; }
.cart-line-visual{ width: 84px; height: 84px; flex: none; }
.cart-line-info{ flex: 1 1 200px; min-width: 0; }
.cart-line-qty{ flex: none; }
.cart-line-price{ flex: none; width: 100px; text-align: right; }
@media (max-width: 620px){
  .cart-line{ align-items: flex-start; }
  .cart-line-price{ width: auto; margin-left: auto; }
}

/* ---------- Checkout layout ---------- */
.checkout-grid{ display:grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items:start; }
@media (max-width: 860px){ .checkout-grid{ grid-template-columns: 1fr; } }
.checkout-section{ border: 1px solid var(--line); background: var(--white); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.checkout-section h2{ font-family: var(--serif); font-size: 1.15rem; margin: 0 0 18px; padding-bottom: 14px; border-bottom: 1px solid var(--line-soft); }
.checkout-section .grid-2{ gap: 16px; }
.order-summary{ position: sticky; top: 96px; border: 1px solid var(--line); background: var(--white); border-radius: var(--radius); padding: 24px; }
.order-summary h2{ font-family: var(--serif); font-size: 1.15rem; margin: 0 0 16px; }
.order-line{ display:flex; align-items:center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line-soft); }
.order-line-visual{ width: 48px; height: 48px; flex: none; border: 1px solid var(--line-soft); background: var(--paper-alt); display:flex; align-items:center; justify-content:center; }
.order-line-visual svg{ width: 80%; height: 80%; }
.order-line-info{ flex: 1; min-width: 0; }
.order-line-name{ font-weight: 600; font-size: .92rem; }
.order-line-meta{ font-size: .78rem; color: var(--ink-faint); }
.order-line-price{ font-family: var(--mono); font-size: .88rem; flex: none; }
.order-totals-row{ display:flex; justify-content:space-between; padding: 8px 0; font-size: .92rem; color: var(--ink-soft); }
.order-totals-row.total{ border-top: 1px solid var(--line); margin-top: 4px; padding-top: 14px; font-size: 1.1rem; color: var(--ink); font-weight: 600; }
@media (max-width: 860px){ .order-summary{ position: static; } }

/* ---------- Notices ---------- */
.notice{
  border:1px solid var(--line); background: var(--warn-bg); padding: 16px 18px; border-radius: var(--radius);
  font-size:.92rem; color: var(--ink-soft);
}
.notice-copper{ border-color: var(--copper); }
.notice strong{ color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--line); background: var(--paper-alt); margin-top: 80px; }
.site-footer .container{ padding-top:48px; padding-bottom: 32px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
@media (max-width: 780px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-col h4{ font-family: var(--mono); text-transform:uppercase; font-size:.7rem; letter-spacing:.1em; color: var(--ink-faint); margin-bottom:12px; }
.footer-col a{ display:block; text-decoration:none; color: var(--ink-soft); font-size:.88rem; padding: 4px 0; }
.footer-col a:hover{ color: var(--copper-dark); }
.footer-bottom{ border-top:1px solid var(--line); margin-top: 32px; padding-top: 20px; font-size:.78rem; color: var(--ink-faint); }
.footer-legal{ font-size: .78rem; color: var(--ink-faint); max-width: 90ch; line-height:1.6; margin-top: 10px;}

/* ---------- Age gate modal ---------- */
.gate-overlay{
  position: fixed; inset:0; background: rgba(27,25,18,.92); z-index: 500;
  display:flex; align-items:center; justify-content:center; padding: 20px;
}
.gate-modal{
  background: var(--paper); max-width: 460px; width:100%; padding: 34px 30px; border-radius: var(--radius);
  border: 1px solid var(--line);
}
.gate-modal h2{ font-size:1.4rem; }
.gate-actions{ display:flex; gap:12px; margin-top: 22px; flex-wrap:wrap; }
.gate-actions .btn{ flex:1; }
[hidden]{ display:none !important; }

/* ---------- Hero ---------- */
.hero{ padding: 72px 0 56px; }
.hero-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items:center; }
@media (max-width: 900px){ .hero-grid{ grid-template-columns: 1fr; } }
.hero-actions{ display:flex; gap: 14px; margin-top: 26px; flex-wrap:wrap; }
.hero-art{ border:1px solid var(--line); background: var(--white); aspect-ratio: 1/1; display:flex; align-items:center; justify-content:center; padding: 20px;}

/* ---------- Utility ---------- */
.stack-16 > * + *{ margin-top:16px; }
.muted{ color: var(--ink-faint); }
.center{ text-align:center; }
.small{ font-size:.85rem; }
.mt-0{ margin-top:0; }
.mb-0{ margin-bottom:0; }
.divider{ height:1px; background: var(--line); margin: 40px 0; border:none; }
.table-scroll{ overflow-x:auto; }
.skip-link{
  position:absolute; left:-999px; top:0; background:var(--ink); color:var(--paper); padding:10px 16px; z-index:1000;
}
.skip-link:focus{ left: 12px; top: 12px; }

@media print{
  .ruo-banner, .site-header, .site-footer, .no-print{ display:none !important; }
  body{ background: #fff; }
  .container{ max-width: 100%; padding:0; }
}

/* Synthesis Labs identity — shared storefront and packaging system. */
:root{--paper:#f8f8f4;--paper-alt:#eef0e9;--paper-deep:#dfe5dc;--ink:#182b26;--ink-soft:#42534b;--ink-faint:#627068;--line:#ccd5cd;--line-soft:#dfe5dc;--copper:#195b53;--copper-dark:#12443d;--teal:#195b53;--teal-dark:#12443d;--white:#fffef9;--warn-bg:#edf2eb;--focus:#24776b;--radius:6px;--maxw:1320px;--serif:var(--sans);--banner-height:34px}

h1,h2,h3,h4{font-weight:600;letter-spacing:-.045em}
h1{font-size:clamp(2.6rem,5vw,4.7rem)}
h2{font-size:clamp(2rem,3.4vw,3.1rem)}
h3{letter-spacing:-.025em}
button:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
.section{padding:88px 0}
.container{padding-left:36px;padding-right:36px}
.eyebrow{font-size:11px;letter-spacing:.15em;font-weight:500}
#ruo-banner{position:sticky;top:0;z-index:70}
.ruo-banner{font-family:var(--sans);background:#173d35;font-size:11px;line-height:18px;padding:8px 16px;letter-spacing:.025em}
.ruo-banner strong{color:#fff}
.site-header{top:var(--banner-height);background:rgba(248,248,244,.97);backdrop-filter:blur(12px)}
.site-header .container{height:88px}
.brand-icon{width:38px;height:38px;color:var(--teal)}
.brand-word{font-size:19px;letter-spacing:.055em}
.brand-word-sub{font-size:9px;letter-spacing:.45em;margin-top:7px}
.main-nav{gap:24px}
.main-nav a{font-size:12px}
.cart-link{font-size:12px}
.cart-count{min-width:23px;height:23px}
.btn{min-height:48px;padding:14px 24px;border-radius:4px;font-size:13px}
.btn span{margin-left:22px}
.text-link{font-size:13px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}
.text-link:hover{color:var(--teal);border-color:var(--teal)}
.synthesis-hero{padding:48px 0 52px}
.hero-grid{grid-template-columns:1fr 1fr;gap:42px}
.hero-copy{padding:28px 0}
.hero-copy h1{font-size:clamp(64px,7.5vw,104px);line-height:.98;letter-spacing:-.065em;margin:28px 0}
.hero-copy h1 span{color:var(--teal)}
.hero-copy .lede{font-size:16px;line-height:1.85}
.hero-actions{align-items:center;gap:24px}
.hero-note{font-family:var(--mono);font-size:10px;margin:25px 0 0;color:var(--ink-faint)}
.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--teal);margin-right:8px}
.hero-stage{position:relative;isolation:isolate;min-width:0;aspect-ratio:1/1.06;background:radial-gradient(ellipse at 48% 35%,#f7f8f1 0,#e0e7dd 65%,#cdd8cc 100%);border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.stage-grid{position:absolute;inset:0;background-image:linear-gradient(#43684c0c 1px,transparent 1px),linear-gradient(90deg,#43684c0c 1px,transparent 1px);background-size:64px 64px;z-index:-1}
.hero-stage:after{content:'';width:85%;height:42%;position:absolute;left:22%;bottom:-18%;border-radius:50%;background:#839c8433;filter:blur(24px);z-index:-1}
.hero-bottle{width:83%;transform:rotate(-9deg);transition:transform .5s ease;filter:drop-shadow(22px 26px 15px #1c382b20)}
.hero-stage:hover .hero-bottle{transform:rotate(-4deg) translateY(-5px)}
.hero-bottle svg{display:block;width:100%}
.stage-index{position:absolute;top:27px;left:28px;font:11px var(--mono);letter-spacing:.1em;color:var(--ink-faint)}
.stage-caption{position:absolute;bottom:42px;left:28px;right:28px;display:flex;justify-content:space-between;font:8px var(--mono);letter-spacing:.1em}
.art-caption{position:absolute;bottom:20px;left:28px;font-size:9px;color:var(--ink-faint)}
.principle-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.principle-bar .container{display:grid;grid-template-columns:repeat(4,1fr);padding-top:25px;padding-bottom:25px;gap:16px}
.principle-bar span{font-size:12px;font-weight:500}
.principle-bar b{font:10px var(--mono);color:var(--teal);margin-right:15px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
.section-heading h2{margin-bottom:0}
.collection-panel{display:grid;grid-template-columns:1fr 1fr;background:var(--paper-alt);border:1px solid var(--line-soft);border-radius:8px;overflow:hidden;align-items:center}
.collection-panel>div:first-child{padding:55px}
.index-label{font:10px var(--mono);color:var(--ink-faint);letter-spacing:.1em}
.collection-panel h3{font-size:34px;line-height:1.2;margin:22px 0}
.collection-panel p{font-size:14px;max-width:38ch;margin-bottom:24px}
.collection-art{display:flex;align-items:center;justify-content:center;min-width:0;height:430px;background:radial-gradient(#fafbf5,#e0e7dc)}
.collection-art>div{width:56%;margin-left:-10%}
.collection-art>div:first-child{transform:rotate(-9deg) translateY(18px);margin-left:0}
.collection-art>div:last-child{transform:rotate(7deg) translateY(-9px)}
.collection-art svg{width:100%;display:block}
.quality-band{background:#e8eee5}
.quality-layout{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:90px}
.quality-layout .lede{font-size:15px;margin:25px 0}
.document-preview{background:var(--white);padding:36px;border:1px solid var(--line);box-shadow:8px 9px 0 #d3ddce;transform:rotate(2deg)}
.doc-top{display:flex;justify-content:space-between;font:9px var(--mono);padding-bottom:25px;border-bottom:1px solid var(--line);margin-bottom:25px}
.document-preview h3{font-size:25px}
.document-preview p{font-size:10px}
.document-rows{display:grid;grid-template-columns:1fr 1fr;gap:16px;font:10px var(--mono);margin:24px 0}
.document-rows span{padding-bottom:12px;border-bottom:1px solid var(--line)}
#quality-trace svg{width:100%;height:110px}
.process-grid{margin:36px 0}
.process-grid article{border-top:1px solid var(--line);padding-top:24px}
.process-grid h3{font-size:21px;margin:22px 0 12px}
.process-grid p{font-size:14px;max-width:34ch}
.faq-section{border-top:1px solid var(--line);background:#f0f3ed}
.faqs details{border-bottom:1px solid var(--line);padding:20px 0}
.faqs summary{font-size:15px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}
.faqs summary::after{content:'+';font-size:20px;color:var(--teal)}
.faqs details[open] summary::after{content:'−'}
.faqs p{margin:16px 0 0;font-size:14px;line-height:1.7}
.closing-section{background:#183c33;color:#f8f8f4;padding:80px 0;text-align:center}
.closing-section .eyebrow{color:#bfd2c7}
.closing-section h2{font-size:clamp(32px,4vw,52px);margin:24px 0}
.closing-section .btn{background:#f8f8f4;color:#173d35}
.closing-section .btn:hover{background:#d7e5d7}
.site-footer{margin-top:0;background:#f8f8f4}
.site-footer .container{padding-top:64px}
.footer-grid{gap:60px}
.brand-mark{font-size:21px;letter-spacing:-.03em}
.footer-col a{font-size:12px;padding:7px 0}
.footer-col p{font-size:12px;max-width:30ch}
.footer-bottom p{font-size:10px}
.gate-overlay{background:#102a24dd;backdrop-filter:blur(8px)}
.gate-modal{border-radius:10px;padding:36px}
.gate-modal:before{content:'SYNTHESIS LABS';display:block;font-size:12px;font-weight:700;letter-spacing:.13em;margin-bottom:30px;color:var(--teal)}
.gate-modal h2{font-size:28px}
.gate-actions{flex-direction:column}
.gate-actions .btn{width:100%}
.badge-ruo{background:#edf3eb;color:#195b53;border-color:#bdd0c4}
.product-card{padding:0 0 20px;gap:11px;border:1px solid var(--line-soft);overflow:hidden;transition:border-color .2s,box-shadow .2s,transform .2s;background:#fffefb}
.product-card:hover{transform:translateY(-4px);box-shadow:0 10px 28px #243d2510}
.product-card>*:not(.product-visual){margin-left:20px;margin-right:20px}
.product-visual{background:radial-gradient(#f9faf4,#e6ebe1);border:0;aspect-ratio:1;position:relative}
.product-visual svg{width:92%;height:92%;transition:transform .3s}
.product-card:hover .product-visual svg{transform:scale(1.035)}
.product-name{font-size:21px;letter-spacing:-.035em}
.product-meta{gap:8px}
.product-meta span{background:none;border:0;padding:0;font:10px var(--mono);color:var(--ink-faint)}
.product-meta span+span:before{content:'· ';}
.product-price{font-family:var(--sans);font-size:13px;font-weight:600;padding-top:16px;display:flex;justify-content:space-between}
.product-card .badge{font-size:8px;padding:3px 7px}
.product-card .product-visual:after{content:'PACKAGING ILLUSTRATION';position:absolute;bottom:9px;left:12px;font:6px var(--mono);letter-spacing:.08em;color:#627068}
#filters{grid-template-columns:1fr 250px;padding-bottom:25px;border-bottom:1px solid var(--line)}
#product-grid{gap:22px}
#result-count{font:11px var(--mono);margin-bottom:20px}
#product-page>.grid>div{min-width:0}
#product-page #pv-main{border-radius:8px}
#product-page #pv-main:after{content:'PACKAGING ILLUSTRATION';position:absolute;bottom:18px;font:9px var(--mono);color:var(--ink-faint)}
#add-cart-form{background:#edf2e9;border:1px solid var(--line);padding:24px;margin:24px 0}
.variant-pill{border-radius:4px;min-height:44px}
.variant-group{margin-bottom:0}
.buy-box-price{font-size:26px;font-family:var(--sans);font-weight:600}
.qty-stepper{height:44px}
.spec-table{table-layout:fixed;margin-top:24px}
.spec-table th{width:33%;font-size:10px}
.spec-table td{font-size:13px;overflow-wrap:anywhere}
.order-summary{top:calc(var(--banner-height) + 105px)}
.grid>*{min-width:0}
main{min-height:55vh}
input,select,textarea{max-width:100%}
body>main:not(:has(.synthesis-hero)){padding-bottom:65px}

@media(min-width:1001px){#product-page>.grid>div:first-child{position:sticky;top:calc(var(--banner-height) + 110px)}
}

@media(max-width:1100px){.main-nav{gap:14px}
.main-nav a{font-size:11px}
.brand-word{font-size:16px}
.brand-icon{width:30px}
.hero-copy h1{font-size:76px}
.quality-layout{gap:40px}
}

@media(max-width:900px){.hero-grid{grid-template-columns:1fr 1fr;gap:25px}
.hero-copy h1{font-size:64px}
.hero-copy .lede{font-size:14px}
.hero-stage{aspect-ratio:1/1.35}
.hero-actions{gap:12px}
.hero-actions .text-link{font-size:11px}
.collection-panel>div:first-child{padding:30px}
.collection-art{height:360px}
.footer-grid{gap:28px}
}

@media(max-width:880px){.main-nav{inset:calc(var(--banner-height) + 76px) 0 0;visibility:hidden}
.main-nav.open{visibility:visible}
.site-header .container{height:76px}
.main-nav a{font-size:17px;padding:18px 4px}
.nav-toggle{margin-left:auto;margin-right:22px;min-height:44px;align-items:center}
.site-header .brand-word{font-size:16px}
.nav-actions{flex:none}
}

@media(max-width:620px){.container{padding-left:20px;padding-right:20px}
.section{padding:55px 0}
.section-tight{padding:26px 0}
.hero-grid{grid-template-columns:1fr;gap:28px}
.synthesis-hero{padding:12px 0 28px}
.hero-copy{padding:20px 0 0}
.hero-copy h1{font-size:76px}
.hero-copy .lede{font-size:14px}
.hero-stage{aspect-ratio:1.1}
.hero-bottle{width:72%}
.hero-actions{gap:18px}
.hero-note{margin-top:18px}
.principle-bar .container{grid-template-columns:1fr 1fr;gap:18px 12px}
.principle-bar span{font-size:10px}
.principle-bar b{margin-right:8px}
.section-heading{align-items:start;flex-direction:column;gap:12px}
.collection-panel{grid-template-columns:1fr}
.collection-panel h3{font-size:28px}
.collection-art{height:310px}
.quality-layout{grid-template-columns:1fr;gap:32px}
.document-preview{padding:24px;transform:none}
.doc-top{font-size:8px}
.process-grid{gap:25px}
.process-grid p{max-width:none}
.closing-section{padding:55px 0}
.footer-grid{gap:30px 20px}
.footer-col:first-child{grid-column:1/-1}
.footer-col p{max-width:40ch}
.brand-icon{width:27px}
.site-header .brand-word{font-size:13px}
.brand-word-sub{font-size:8px;margin-top:5px}
.brand{gap:7px}
.nav-toggle{margin-right:13px;padding:8px;font-size:10px}
.cart-link{font-size:11px}
.ruo-banner{font-size:9px;line-height:14px;padding:7px 14px}
.hero-copy .eyebrow{font-size:9px}
#filters{grid-template-columns:1fr;gap:14px}
#product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.product-card>*:not(.product-visual){margin-left:12px;margin-right:12px}
.product-name{font-size:18px}
.product-price{font-size:11px;flex-wrap:wrap}
.product-meta{font-size:9px}
.product-meta span{font-size:8px}
.product-card{gap:9px}
.product-card .product-visual:after{font-size:5px;left:8px}
#product-page>.grid{grid-template-columns:1fr!important;gap:28px!important}
.gate-modal{padding:26px}
.gate-modal h2{font-size:24px}
.spec-table th{width:34%}
.footer-bottom p{line-height:1.8}
}

@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
.hero-stage:hover .hero-bottle,.product-card:hover{transform:none}
}

@media print{#ruo-banner{position:static}
.ruo-banner{display:block!important;background:white;color:black}
.ruo-banner strong{color:black}
.spec-table{break-inside:avoid}
#add-cart-form,.hero-actions,#print-btn{display:none}
#product-page>.grid{display:block}
#product-page>.grid>div:first-child{position:static}
#pv-main{max-width:220px}
.site-header,.site-footer{display:none!important}
}

/* Storefront refinement: neutral surfaces, crisp geometry, quieter copy. */
:root{--paper:#fff;--paper-alt:#f4f5f4;--white:#fff;--ink:#111b1c;--ink-soft:#455152;--ink-faint:#677172;--line:#dce1e1;--line-soft:#edf0ef;--radius:8px}
body{background:var(--paper)}.site-header{background:#ffffffed}.site-header .container{height:80px}.brand-word{letter-spacing:.04em}.main-nav a{font-size:13px}.ruo-banner{background:#111b1c}.btn{border-radius:7px;transition:background .18s,transform .18s}.btn:hover{transform:translateY(-1px)}.synthesis-hero{background:#10191b;padding:56px 0 64px;color:#fff}.hero-copy h1{font-size:clamp(54px,5.5vw,80px);letter-spacing:-.055em;line-height:1.04}.hero-copy h1 span{color:#8fcac3;font-size:.78em}.hero-copy .eyebrow,.hero-note{color:#a5bfbd}.hero-copy .lede{color:#c5cecd;font-size:15px;line-height:1.8}.hero-copy .text-link{color:#e2eae8;border-color:#40514f}.synthesis-hero .btn-accent{background:#e2eeeb;color:#132c29}.synthesis-hero .btn-accent:hover{background:#fff}.status-dot{background:#87c5b9}.hero-stage{background:#f4f5f4;aspect-ratio:1;border:1px solid #3b4c48;border-radius:16px;overflow:hidden}.hero-stage:after{display:none}.hero-bottle{width:100%;filter:none;transform:none}.hero-stage:hover .hero-bottle{transform:scale(1.025)}.photo-vial{display:block;width:100%!important;height:100%!important}.hero-stage .stage-caption{bottom:13px;left:20px;right:20px;font-size:7px;color:#5a6464}.principle-bar{background:white}.principle-bar .container{padding-top:23px;padding-bottom:23px}.product-visual{background:#f4f5f4}.product-card .product-visual:after,#product-page #pv-main:after{content:none}.product-card{border-radius:10px}.product-visual svg{width:100%;height:100%}.product-card:hover .product-visual svg{transform:scale(1.04)}.product-card .product-name{font-size:22px}.essential-card{border:1px solid var(--line);border-radius:12px;padding:28px;text-decoration:none;position:relative;transition:background .2s,border-color .2s}.essential-card:hover{background:#f3f7f6;border-color:#94b4ad}.essential-card>span{font:11px var(--mono);color:var(--teal)}.essential-card h3{font-size:21px;margin:35px 0 15px}.essential-card p{font-size:13px;max-width:30ch;margin:0}.essential-card b{position:absolute;right:25px;top:24px}.faq-section{background:#f5f7f6}.section{padding:64px 0}.section-heading h2{font-size:34px}.site-footer{background:#10191b;color:#fff;border:0}.site-footer p,.site-footer a,.site-footer .muted,.site-footer h4{color:#bbc7c4}.footer-bottom{border-color:#31413e}.site-footer a:hover{color:#fff}.site-footer .brand-mark{color:white}.gate-overlay{background:#101719dd}.gate-modal{background:white}.gate-modal .btn-primary{background:#111b1c;color:white}.product-meta span{font-size:10px}.product-price{font-size:15px}#product-page #pv-main{border-radius:12px}#add-cart-form{border-radius:12px;background:#f5f7f6}.variant-pill{border-radius:6px}.catalog-note{font-size:11px;color:var(--ink-faint);margin-top:18px}
@media(max-width:880px){.site-header .container{height:76px}}
@media(max-width:620px){.synthesis-hero{padding:28px 0}.hero-copy{padding:0}.hero-copy h1{font-size:57px;margin:24px 0}.hero-copy h1 span{font-size:.76em}.hero-grid{gap:30px}.hero-bottle{width:100%}.hero-stage{aspect-ratio:1}.hero-note{font-size:9px}.section-heading h2{font-size:29px}.section{padding:45px 0}.product-card .product-name{font-size:18px}.product-price{font-size:12px}.essential-card h3{margin-top:23px}.principle-bar span{font-size:10px}}

/* Product pages: one clear purchasing panel, details on demand. */
.product-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:clamp(32px,6vw,88px);align-items:start;padding:12px 0 28px}
.product-layout>div{min-width:0}.product-purchase{padding:12px 0}.product-kicker{font:10px var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--teal);margin:0 0 14px}.product-title{font-size:clamp(34px,4vw,54px);line-height:1.08;letter-spacing:-.045em;margin:0 0 22px}.product-purchase>.buy-box-price{font-size:26px;line-height:1.3;margin-bottom:30px}.product-purchase .unit{font-size:12px;font-weight:400;color:var(--ink-faint);margin-left:5px}
#product-page #add-cart-form{margin:0;padding:0;border:0;background:none;border-radius:0;box-shadow:none}.product-order-form .variant-label{font-family:var(--sans);font-size:12px;letter-spacing:0;text-transform:none;margin-bottom:12px}.product-order-form .variant-pills{gap:8px;flex-wrap:wrap}.product-order-form .variant-pill{min-width:64px;padding:11px 16px;font-size:13px;background:white;border-color:var(--line)}.product-order-form .variant-pill[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:white}.product-order-actions{display:flex;gap:12px;margin-top:26px;align-items:stretch}.product-order-actions .qty-stepper{height:52px;flex:0 0 118px;border:1px solid var(--line);border-radius:7px;overflow:hidden}.product-order-actions .qty-stepper input{width:40px}.product-order-actions .qty-stepper button{width:38px;background:white}.product-order-actions>.btn{flex:1;min-height:52px;display:flex;justify-content:space-between;padding:0 20px}.product-ruo-note{font-size:11px;line-height:1.6;color:var(--ink-faint);margin:15px 0 30px}.product-details{border-top:1px solid var(--line)}.product-disclosure{border-bottom:1px solid var(--line)}.product-disclosure summary{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:58px;padding:14px 0;cursor:pointer;font-size:13px;font-weight:500;list-style:none}.product-disclosure summary::-webkit-details-marker{display:none}.product-disclosure summary:after{content:'+';font-size:19px;font-weight:400;color:var(--ink-faint)}.product-disclosure[open] summary:after{content:'−'}.product-disclosure summary:focus-visible{outline:2px solid var(--teal);outline-offset:4px}.disclosure-content{padding:0 0 22px;font-size:12px;line-height:1.7}.disclosure-content p{margin:0 0 12px}.disclosure-content .spec-table{margin:0}.disclosure-content .spec-table th{width:36%}.disclosure-content ul{padding-left:18px;margin:0}.disclosure-content li+li{margin-top:10px}.product-document-actions{display:flex;flex-wrap:wrap;gap:8px}.product-document-actions .btn{font-size:11px;padding:9px 12px;min-height:40px}
@media(min-width:901px){.product-layout>div:first-child{position:sticky;top:135px}}
@media(max-width:900px){.product-layout{gap:28px}.product-title{font-size:36px}.product-order-actions{gap:8px}.product-order-actions>.btn{padding:0 14px}}
@media(max-width:700px){.product-layout{grid-template-columns:1fr;gap:24px;padding-top:0}.product-purchase{padding:0}.product-layout #pv-main{max-height:380px}.product-title{font-size:38px;margin-bottom:15px}.product-purchase>.buy-box-price{margin-bottom:24px}.product-kicker{margin-bottom:10px}.product-order-actions{margin-top:22px}.product-ruo-note{margin-bottom:25px}.product-disclosure summary{min-height:56px}}
@media print{.product-layout{display:block}.product-layout>div:first-child{position:static}.product-purchase{padding:0}.product-details details>div{display:block!important}.product-disclosure summary:after,.product-document-actions{display:none}.product-disclosure{break-inside:avoid}}

.related-products{margin-top:70px;padding-top:40px;border-top:1px solid var(--line)}.related-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:28px}.related-heading h2{font-size:30px;letter-spacing:-.04em;margin:0}.related-controls{display:flex;gap:8px}.related-controls button{height:44px;width:44px;border:1px solid var(--line);border-radius:50%;background:white;font-size:18px;cursor:pointer;color:var(--ink)}.related-controls button:hover:not(:disabled){background:var(--ink);color:white}.related-controls button:disabled{opacity:.3;cursor:default}.related-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:1px;padding:2px 1px 18px;margin:0;list-style:none;scrollbar-width:thin;scrollbar-color:#becac7 transparent}.related-card{flex:0 0 calc((100% - 72px)/4);min-width:0;scroll-snap-align:start}.related-image{display:block;position:relative;aspect-ratio:1;background:#f4f5f4;border-radius:10px;overflow:hidden}.related-image svg{transition:transform .25s}.related-image:hover svg{transform:scale(1.04)}.related-image .badge{position:absolute;left:12px;top:12px;font-size:8px;background:#fff}.related-card h3{font-size:16px;letter-spacing:-.02em;margin:17px 0 7px}.related-card h3 a{text-decoration:none}.related-price{font-size:13px;color:var(--ink-soft);margin:0 0 15px}.related-options{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:9px 0;font-size:11px;text-decoration:none;min-height:44px}.related-options:hover{color:var(--teal);border-color:var(--teal)}.related-card a:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
@media(max-width:900px){.related-card{flex-basis:calc((100% - 48px)/3)}}
@media(max-width:620px){.related-products{margin-top:42px;padding-top:30px}.related-heading{margin-bottom:20px;gap:12px}.related-heading h2{font-size:25px}.related-card{flex-basis:calc((100% - 24px)/2)}.related-card h3{font-size:14px}.related-price{font-size:11px}.related-controls button{width:40px;height:40px}.related-image .badge{left:8px;top:8px}}
@media print{.related-products{display:none}}