/* ============ TOKENS ============ */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem;
  --radius-xl: 1rem; --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-display: 'Cabinet Grotesk', 'Georgia', sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;

  --sidebar-w: 300px;
}

/* Clinical & premium — light */
:root, [data-theme='light'] {
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-surface-2: #f9fbfc;
  --color-surface-offset: #eef2f5;
  --color-border: #dbe3ea;
  --color-divider: #e7edf1;

  --color-text: #0f2436;
  --color-text-muted: #5a6b7b;
  --color-text-faint: #97a5b2;
  --color-text-inverse: #f4f9fb;

  --color-navy: #0b2239;
  --color-navy-2: #123044;
  --color-primary: #0e8f9c;      /* refined teal */
  --color-primary-hover: #0a7079;
  --color-primary-active: #085760;
  --color-primary-soft: #e3f3f4;

  --color-amber: #9a5b00;
  --color-amber-border: #e8c48a;
  --color-amber-soft: #fdf3e3;

  --shadow-sm: 0 1px 2px rgba(15, 36, 54, 0.06);
  --shadow-md: 0 6px 20px rgba(15, 36, 54, 0.08);
  --shadow-lg: 0 18px 48px rgba(15, 36, 54, 0.14);
}

[data-theme='dark'] {
  --color-bg: #0a141d;
  --color-surface: #10202c;
  --color-surface-2: #142735;
  --color-surface-offset: #16303f;
  --color-border: #244155;
  --color-divider: #1c3646;

  --color-text: #dce7ef;
  --color-text-muted: #8ba0af;
  --color-text-faint: #5e7484;
  --color-text-inverse: #08131c;

  --color-navy: #08131c;
  --color-primary: #33b4bf;
  --color-primary-hover: #4fc4ce;
  --color-primary-active: #66cdd6;
  --color-primary-soft: #123038;

  --color-amber: #f0b45f;
  --color-amber-border: #6a4a1c;
  --color-amber-soft: #33240f;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 18px 48px rgba(0,0,0,0.5);
}

/* ============ BASE ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; scroll-behavior: smooth;
}
body {
  min-height: 100dvh; line-height: 1.6;
  font-family: var(--font-body); font-size: var(--text-base);
  color: var(--color-text); background: var(--color-bg);
}
img, svg { display: block; max-width: 100%; height: auto; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.12; text-wrap: balance; letter-spacing: -0.01em; }
p, li { text-wrap: pretty; max-width: 68ch; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
input { font: inherit; color: inherit; }
::selection { background: color-mix(in oklab, var(--color-primary) 25%, transparent); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
a, button, input { transition: color var(--transition-interactive), background var(--transition-interactive),
  border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive); }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration:.01ms!important; transition-duration:.01ms!important; scroll-behavior:auto!important; }
}

/* ============ LAYOUT ============ */
.layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100dvh; }
.backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.45); z-index: 90; }

/* ============ SIDEBAR ============ */
.sidebar {
  position: sticky; top: 0; height: 100dvh;
  background: var(--color-navy);
  color: var(--color-text-inverse);
  display: flex; flex-direction: column;
  padding: var(--space-8) var(--space-6);
  border-right: 1px solid rgba(255,255,255,0.06);
  overflow-y: auto;
}
.brand { display: block; margin-bottom: var(--space-2); border-radius: var(--radius-lg); }
.brand-logo { width: 100%; height: auto; display: block; background: #ffffff; border-radius: var(--radius-lg); padding: var(--space-4); border: 1px solid rgba(255,255,255,0.14); box-shadow: 0 2px 10px rgba(0,0,0,0.18); }
.brand:hover .brand-logo { border-color: color-mix(in oklab, var(--color-primary) 45%, transparent); }

.tagline { color: rgba(255,255,255,0.6); font-size: var(--text-sm); margin: var(--space-5) 0 var(--space-6); }

.side-search { position: relative; margin-bottom: var(--space-8); }
.side-search svg { position: absolute; left: var(--space-3); top: 50%; transform: translateY(-50%); color: rgba(255,255,255,0.45); pointer-events: none; }
.side-search input {
  width: 100%; padding: var(--space-3) var(--space-3) var(--space-3) 2.6rem;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md); color: #fff; font-size: var(--text-sm);
}
.side-search input::placeholder { color: rgba(255,255,255,0.4); }
.side-search input:focus { border-color: var(--color-primary); background: rgba(255,255,255,0.09); outline: none; }

.nav-label { font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: var(--space-3); }
.nav { display: flex; flex-direction: column; gap: var(--space-1); }
.nav-item {
  display: flex; align-items: center; gap: var(--space-3);
  width: 100%; text-align: left;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.75); font-size: var(--text-sm); font-weight: 500;
  border: 1px solid transparent;
}
.nav-item svg { flex: none; opacity: 0.85; }
.nav-item:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-item.active { background: color-mix(in oklab, var(--color-primary) 22%, transparent); color: #fff; border-color: color-mix(in oklab, var(--color-primary) 45%, transparent); }
.nav-item.active svg { color: var(--color-primary); opacity: 1; }

.sidebar-footer { margin-top: auto; padding-top: var(--space-8); }
.badge-est { display: inline-flex; align-items: center; gap: var(--space-2); font-size: 0.72rem; letter-spacing: 0.08em; color: rgba(255,255,255,0.55); text-transform: uppercase; }
.badge-est .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-primary) 25%, transparent); }
.theme-toggle { margin-top: var(--space-4); display: inline-flex; align-items: center; gap: var(--space-2); color: rgba(255,255,255,0.6); font-size: var(--text-xs); padding: var(--space-2) var(--space-3); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-full); }
.theme-toggle:hover { color: #fff; border-color: rgba(255,255,255,0.3); }

/* ============ MAIN ============ */
.main { min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-12);
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in oklab, var(--color-surface) 80%, transparent);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.crumb { font-size: var(--text-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-text-faint); }
.topbar-actions { display: flex; align-items: center; gap: var(--space-4); }
.pill { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); color: var(--color-text-muted); padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-full); background: var(--color-surface); }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); }

.page { display: none; padding: var(--space-12); max-width: 1120px; }
.page.active { display: block; animation: fade 0.4s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.eyebrow { display: inline-block; font-size: var(--text-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-primary); font-weight: 600; margin-bottom: var(--space-3); }
.page-title { font-size: var(--text-2xl); font-weight: 700; margin-bottom: var(--space-4); }
.lead { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 60ch; margin-bottom: var(--space-10); }

/* search block on peptides page */
.search-hero { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-6); box-shadow: var(--shadow-sm); margin-bottom: var(--space-10); }
.search-hero-row { position: relative; }
.search-hero-row svg { position: absolute; left: var(--space-4); top: 50%; transform: translateY(-50%); color: var(--color-text-faint); }
.search-hero input { width: 100%; padding: var(--space-4) var(--space-4) var(--space-4) 3rem; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); font-size: var(--text-base); }
.search-hero input:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 4px var(--color-primary-soft); }
.search-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-4); }
.search-tag { font-size: var(--text-xs); color: var(--color-text-muted); padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-full); background: var(--color-surface-2); }
.search-tag:hover { border-color: var(--color-primary); color: var(--color-primary); }
.search-tag.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* grid of cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--space-5); }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); box-shadow: var(--shadow-sm); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border)); }
.card { transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive); }
.card-icon { width: 44px; height: 44px; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-primary); display: grid; place-items: center; margin-bottom: var(--space-4); }
.card h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.card p { font-size: var(--text-sm); color: var(--color-text-muted); }
.card .cat { font-size: var(--text-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-text-faint); }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-4); }
.card-price { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 700; color: var(--color-primary); white-space: nowrap; }

.no-results { display: none; text-align: center; padding: var(--space-16); color: var(--color-text-muted); }
.no-results.show { display: block; }

/* section heading */
.section-head { margin: var(--space-16) 0 var(--space-6); }
.section-head h2 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.section-head p { color: var(--color-text-muted); font-size: var(--text-sm); }

/* research: article list */
.article { display: grid; grid-template-columns: 120px 1fr; gap: var(--space-6); padding: var(--space-6); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); margin-bottom: var(--space-4); box-shadow: var(--shadow-sm); }
.article:hover { border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border)); }
.article .meta { font-size: var(--text-xs); color: var(--color-text-faint); letter-spacing: 0.08em; text-transform: uppercase; }
.article .meta strong { display: block; font-size: var(--text-2xl); font-family: var(--font-display); color: var(--color-primary); letter-spacing: -0.02em; }
.article h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.article p { font-size: var(--text-sm); color: var(--color-text-muted); }

/* about */
.about-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-10); align-items: center; margin-bottom: var(--space-16); }
.about-visual { display: flex; flex-direction: column; gap: var(--space-5); }
.brand-plate { background: #ffffff; border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-5); box-shadow: var(--shadow-md); }
.brand-plate img { width: 100%; max-width: 220px; margin: 0 auto; height: auto; display: block; }
.about-photo { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin: var(--space-12) 0; }
.stat { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); text-align: center; box-shadow: var(--shadow-sm); }
.stat .num { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 700; color: var(--color-primary); }
.stat .lbl { font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-text-muted); margin-top: var(--space-2); }
.values { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-5); }
.disclaimer { margin-top: var(--space-16); padding: var(--space-6); border: 1px dashed var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface-2); font-size: var(--text-sm); color: var(--color-text-muted); }

.footer { padding: var(--space-8) var(--space-12); border-top: 1px solid var(--color-border); color: var(--color-text-faint); font-size: var(--text-xs); }

/* ============ COMPLIANCE BAND ============ */
.compliance-band {
  display: flex; align-items: flex-start; gap: var(--space-4);
  background: var(--color-primary-soft);
  border: 1px solid color-mix(in oklab, var(--color-primary) 35%, transparent);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-10);
}
.compliance-band svg { flex: none; color: var(--color-primary); margin-top: 2px; }
.compliance-band strong { display: block; font-family: var(--font-display); font-size: var(--text-base); color: var(--color-text); margin-bottom: var(--space-1); }
.compliance-band p { font-size: var(--text-sm); color: var(--color-text-muted); max-width: 72ch; }
[data-theme='dark'] .compliance-band p { color: var(--color-text); opacity: 0.8; }

/* ============ CATALOGUE ============ */
.catalogue-list { display: flex; flex-direction: column; gap: var(--space-4); }
.price-item { display: flex; justify-content: space-between; gap: var(--space-6); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-5) var(--space-6); box-shadow: var(--shadow-sm); }
.price-item:hover { border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border)); }
.price-head { display: flex; align-items: baseline; gap: var(--space-3); margin-bottom: var(--space-1); flex-wrap: wrap; }
.price-head .cat { font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-text-faint); }
.price-head h3 { font-size: var(--text-lg); }
.price-info p { font-size: var(--text-sm); color: var(--color-text-muted); }
.price-action { display: flex; flex-direction: column; align-items: flex-end; justify-content: center; gap: var(--space-3); flex: none; max-width: 260px; }
.price-single { font-size: var(--text-sm); color: var(--color-text-muted); white-space: nowrap; }
.price-single strong { font-family: var(--font-display); font-size: var(--text-base); color: var(--color-text); }
.price-note { font-size: var(--text-xs); color: var(--color-text-faint); text-align: right; line-height: 1.4; }
.card-note { font-size: var(--text-xs); color: var(--color-text-faint); line-height: 1.4; }
.card-foot:has(.card-note) { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
.pill-soon { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.01em; color: var(--color-amber); background: var(--color-amber-soft); border: 1px solid var(--color-amber-border); padding: var(--space-2) var(--space-3); border-radius: var(--radius-full); line-height: 1.3; text-align: left; }
.price-action .pill-soon { white-space: nowrap; }
.card-foot:has(.pill-soon) { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
.card-foot .pill-soon { border-radius: var(--radius-md); align-items: flex-start; max-width: 100%; }
.card-foot .pill-soon .dot { margin-top: 6px; }
.pill-soon .dot { flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--color-amber); box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-amber) 20%, transparent); }
.price-item.is-soon { border-style: dashed; }
.price-item.is-soon:hover { border-color: var(--color-amber-border); }
.price-size { display: block; font-family: var(--font-display); font-size: var(--text-sm); font-weight: 700; color: var(--color-text); margin-bottom: 2px; }
.btn-enquire:disabled { background: var(--color-surface-offset); color: var(--color-text-faint); border: 1px solid var(--color-border); cursor: not-allowed; }
.btn-enquire { background: var(--color-primary); color: #fff; font-size: var(--text-sm); font-weight: 500; padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); white-space: nowrap; }
.btn-enquire:hover { background: var(--color-primary-hover); }
.contact-email-line { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-3); }
.contact-email-line a { color: var(--color-primary); font-weight: 500; overflow-wrap: break-word; }
.contact-email-line a:hover { text-decoration: underline; }
.card .contact-email-line { margin-top: var(--space-3); padding-top: var(--space-3); border-top: 1px solid var(--color-border); }
.price-action .contact-email-line { text-align: right; }

/* ============ ABOUT: RESEARCH USE & COMPLIANCE ============ */
.compliance-doc { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-8); box-shadow: var(--shadow-sm); }
.compliance-doc h3 { font-size: var(--text-lg); margin-bottom: var(--space-3); }
.compliance-doc h3 + p { margin-bottom: var(--space-4); }
.compliance-doc p { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); max-width: 74ch; }
.compliance-doc p:last-child { margin-bottom: 0; }
.compliance-doc h3:not(:first-child) { margin-top: var(--space-8); padding-top: var(--space-6); border-top: 1px solid var(--color-divider); }
.compliance-doc strong { color: var(--color-text); }

/* ============ CONTACT ============ */
.contact-layout { display: grid; grid-template-columns: 1fr 340px; gap: var(--space-8); align-items: start; }
.enquiry-form { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-8); box-shadow: var(--shadow-sm); }
.form-section { font-size: var(--text-base); margin: 0 0 var(--space-5); }
.field { display: block; margin-bottom: var(--space-4); }
.field span { display: block; font-size: var(--text-xs); font-weight: 500; color: var(--color-text-muted); margin-bottom: var(--space-2); letter-spacing: 0.02em; }
.field input, .field textarea { width: 100%; padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-2); font-size: var(--text-sm); font-family: inherit; color: inherit; }
.field textarea { resize: vertical; min-height: 8rem; line-height: 1.55; }
.field input:focus, .field textarea:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 3px var(--color-primary-soft); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.check { display: flex; align-items: flex-start; gap: var(--space-3); margin-top: var(--space-5); font-size: var(--text-sm); color: var(--color-text-muted); cursor: pointer; }
.check input { flex: none; width: 18px; height: 18px; margin-top: 2px; accent-color: var(--color-primary); cursor: pointer; }
.check span { max-width: 60ch; }
.form-error { margin-top: var(--space-3); font-size: var(--text-sm); color: #b4321f; }
[data-theme='dark'] .form-error { color: #ff9c88; }
.enquiry-form .btn-primary { margin-top: var(--space-6); }
.form-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-3); }
.btn-primary { width: 100%; background: var(--color-primary); color: #fff; font-weight: 600; font-size: var(--text-sm); padding: var(--space-4); border-radius: var(--radius-md); }
.btn-primary:hover { background: var(--color-primary-hover); }

.contact-details { position: sticky; top: calc(var(--space-16) + var(--space-8)); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-6); box-shadow: var(--shadow-md); }
.panel-title { font-size: var(--text-lg); margin-bottom: var(--space-4); padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-divider); }
.detail-list dt { font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-text-faint); margin-bottom: var(--space-1); }
.detail-list dd { font-size: var(--text-sm); color: var(--color-text); margin-bottom: var(--space-4); overflow-wrap: break-word; }
.detail-list dd:last-of-type { margin-bottom: 0; }
.detail-list dd em { font-style: normal; font-size: var(--text-xs); color: var(--color-text-faint); }
.detail-list a { color: var(--color-primary); }
.detail-list a:hover { color: var(--color-primary-hover); text-decoration: underline; }

/* ============ MOBILE ============ */
.menu-btn { display: none; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 100; width: 280px; transform: translateX(-100%); transition: transform 260ms ease; }
  .sidebar.open { transform: none; }
  .menu-btn { display: inline-grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text); }
  .topbar { padding: var(--space-4) var(--space-5); }
  .page { padding: var(--space-6); }
  .about-hero { grid-template-columns: 1fr; }
  .brand-plate img { max-width: 180px; }
  .article { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-details { position: static; }
  .compliance-doc { padding: var(--space-6); }
  .enquiry-form { padding: var(--space-6); }
  .field-row { grid-template-columns: 1fr; }
  .price-item { flex-direction: column; }
  .price-action { flex-direction: column; align-items: flex-start; justify-content: flex-start; width: 100%; max-width: none; margin-top: var(--space-4); gap: var(--space-3); }
  .price-note, .card-note { text-align: left; }
  .price-size { display: inline; margin-right: var(--space-1); }
  .backdrop.show { display: block; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .compliance-band { flex-direction: column; gap: var(--space-3); padding: var(--space-5); }
}

/* ---------- Lab hero banner ---------- */
.lab-banner {
  position: relative;
  border-radius: var(--radius-xl, 18px);
  overflow: hidden;
  margin-bottom: var(--space-10, 2.5rem);
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  background: #08243a;
  box-shadow: var(--shadow-lg);
}
.lab-banner > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% 30%;
}
.lab-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,26,43,0.15) 0%, rgba(6,26,43,0.72) 42%, rgba(6,26,43,0.94) 100%);
}
.lab-banner-copy {
  position: relative;
  z-index: 1;
  padding: clamp(1.5rem, 3vw, 2.75rem);
  margin-left: auto;
  max-width: 34rem;
}
.lab-banner-copy .eyebrow { color: #6fd3d8; }
.lab-banner-copy .page-title { color: #fff; margin-bottom: 0.75rem; }
.lab-banner-copy .lead { color: rgba(233,244,250,0.86); margin-bottom: 0; max-width: none; }
@media (max-width: 720px) {
  .lab-banner { min-height: 380px; align-items: flex-end; }
  .lab-banner > img { object-position: 40% 20%; }
  .lab-banner::after { background: linear-gradient(180deg, rgba(6,26,43,0.15) 0%, rgba(6,26,43,0.75) 45%, rgba(6,26,43,0.96) 100%); }
  .lab-banner-copy { max-width: none; margin-left: 0; }
}