/* ==========================================================================
   Australian Peptides — Design Tokens & Global Styles
   Reference: DESIGN-NOTES.md documents palette/type/layout rationale.
   ========================================================================== */

/* IBM Plex Sans / IBM Plex Mono are loaded via Google Fonts <link> in each
   page <head> with &display=swap — see DESIGN-NOTES.md. */

:root {
  /* ---- Color: clinical, restrained. One committed accent (deep navy from brand mark). ---- */
  --color-bg: #ffffff;
  --color-bg-subtle: #f4f6f7;
  --color-bg-sunken: #eef1f2;
  --color-surface: #ffffff;
  --color-border: #dde2e5;
  --color-border-strong: #b9c1c6;
  --color-ink: #0b0f14;
  --color-text: #454c52;
  --color-text-muted: #656d73;
  --color-accent: #000000;
  --color-accent-hover: #333333;
  --color-accent-tint: #f2f3f4;
  --color-accent-ink: #ffffff;
  --color-line: #c7cdd1;
  --fixed-dark: #0b0f14;   /* surfaces that stay dark in both themes (footer, top bars) */
  --media-bg: #ffffff;     /* product-photo backdrops stay white in both themes */

  /* ---- Type ---- */
  --font-sans: 'IBM Plex Sans', -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 20px;
  --text-xl: 25px;
  --text-2xl: 31px;
  --text-3xl: 39px;
  --text-4xl: 49px;

  /* ---- Spacing scale (4px base) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* ---- Structure ---- */
  --radius-sm: 2px;
  --radius-md: 3px;
  --container-max: 1280px;
  --shadow-sm: 0 1px 2px rgba(11, 15, 20, 0.07);
  --shadow-md: 0 4px 16px rgba(11, 15, 20, 0.10);
  --header-h: 72px;
}

/* ---- Dark theme (default; toggle switches to data-theme="light") ---- */
:root[data-theme="dark"] {
  --color-bg: #0e1116;
  --color-bg-subtle: #161b22;
  --color-bg-sunken: #0a0d11;
  --color-surface: #161b22;
  --color-border: #2a313b;
  --color-border-strong: #3d4653;
  --color-ink: #eef1f4;
  --color-text: #c2cad3;
  --color-text-muted: #8b95a1;
  --color-accent: #eef1f4;
  --color-accent-hover: #ffffff;
  --color-accent-tint: #21262d;
  --color-accent-ink: #0b0f14;
  --color-line: #3d4653;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
}
:root[data-theme="dark"] .logo-link img { filter: invert(1); }

@media (min-width: 768px) {
  :root { --header-h: 104px; }
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--color-bg); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}
body, h1, h2, h3, h4, h5, h6, p, figure, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; padding: 0; }
table { border-collapse: collapse; width: 100%; }

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: transparent;   /* the fixed particle canvas shows through */
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { color: var(--color-ink); font-weight: 600; line-height: 1.2; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 768px) { .container { padding-inline: var(--space-6); } }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: var(--space-3); top: -48px;
  background: var(--color-accent); color: var(--color-accent-ink); padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm); z-index: 200; transition: top .15s ease;
  font-weight: 600; font-size: var(--text-sm);
}
.skip-link:focus { top: var(--space-3); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: var(--font-sans); font-weight: 600; font-size: var(--text-sm);
  letter-spacing: 0.02em; text-transform: uppercase;
  padding: 13px 24px; border-radius: var(--radius-sm);
  border: 1px solid transparent; min-height: 44px;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--color-accent); color: var(--color-accent-ink); }
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-secondary { background: transparent; color: var(--color-ink); border-color: var(--color-ink); }
.btn-secondary:hover { background: var(--color-ink); color: var(--color-accent-ink); }
.btn-outline { background: var(--color-surface); color: var(--color-accent); border-color: var(--color-border-strong); }
.btn-outline:hover { border-color: var(--color-accent); }
.btn-block { width: 100%; }
.btn-sm { min-height: 36px; padding: 8px 16px; font-size: var(--text-xs); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-link {
  font-family: var(--font-sans); font-weight: 600; font-size: var(--text-sm);
  color: var(--color-accent); display: inline-flex; align-items: center; gap: var(--space-1);
  border-bottom: 1px solid transparent; padding-bottom: 2px;
}
.btn-link:hover { border-bottom-color: var(--color-accent); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100; background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
/* Benefits strip in the header — identical styling to the home hero strip. */
.announce-bar { background: var(--fixed-dark); color: #fff; }
/* Below 480px the header wraps to two rows: logo + actions on top,
   a full-width search bar underneath (the big logo leaves no room inline). */
.header-row {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; height: auto; row-gap: var(--space-2);
  padding-block: var(--space-3); gap: var(--space-3);
}
@media (min-width: 480px) {
  .header-row { flex-wrap: nowrap; height: var(--header-h); padding-block: 0; gap: var(--space-5); }
}
.logo-link { display: flex; align-items: center; flex-shrink: 0; margin-right: auto; }
@media (min-width: 480px) { .logo-link { margin-right: 0; } }
.logo-link img { height: 60px; width: auto; display: block; }
@media (min-width: 768px) { .logo-link img { height: 84px; } }
.main-nav { display: none; }
.main-nav ul { display: flex; gap: var(--space-6); }
.main-nav a {
  font-size: var(--text-sm); font-weight: 500; color: var(--color-ink);
  padding: var(--space-2) 0; border-bottom: 2px solid transparent;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { border-bottom-color: var(--color-accent); }
@media (min-width: 1024px) { .main-nav { display: block; } }

/* Under 480px the wrapper dissolves so cart/menu sit beside the logo and the
   search field wraps to a full-width second row of .header-row. */
.header-actions { display: contents; }
@media (min-width: 480px) {
  .header-actions { display: flex; align-items: center; gap: var(--space-4); }
}
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; position: relative; color: var(--color-ink);
}
.icon-btn svg { width: 22px; height: 22px; }
.cart-count {
  position: absolute; top: 4px; right: 2px; background: var(--color-accent); color: var(--color-accent-ink);
  font-size: 10px; font-weight: 700; line-height: 1; min-width: 16px; height: 16px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
}
.cart-count[data-count="0"] { display: none; }

.nav-toggle { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav-toggle svg { width: 24px; height: 24px; }
@media (min-width: 1024px) { .nav-toggle { display: none; } }

.mobile-nav {
  display: none; flex-direction: column; border-top: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  padding: var(--space-3) var(--space-4); font-size: var(--text-base); font-weight: 500;
  color: var(--color-ink); min-height: 44px; display: flex; align-items: center;
}
@media (min-width: 1024px) { .mobile-nav { display: none !important; } }

.search-form { position: relative; display: block; order: 10; flex-basis: 100%; }
.search-form input {
  width: 100%; height: 40px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 0 var(--space-3) 0 var(--space-6); font-size: var(--text-sm); background: var(--color-bg-subtle);
}
@media (min-width: 480px) {
  .search-form { order: 0; flex-basis: auto; }
  .search-form input { width: 130px; }
}
@media (min-width: 1024px) { .search-form input { width: 220px; } }
.search-form input:focus { background: var(--color-surface); border-color: var(--color-accent); }
.search-form svg { position: absolute; left: var(--space-2); top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--color-text-muted); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--fixed-dark); color: #cfd8e2; }
.footer-top { padding-block: var(--space-8); display: grid; gap: var(--space-7); grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-top { grid-template-columns: 1.3fr repeat(3, 1fr); gap: var(--space-6); } }
.footer-brand img { height: 36px; width: auto; margin-bottom: var(--space-4); }
.footer-brand p { font-size: var(--text-sm); color: #a9b7c4; max-width: 34ch; }
.footer-col h3 {
  color: #fff; font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase;
  font-weight: 600; margin-bottom: var(--space-4);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { font-size: var(--text-sm); color: #cfd8e2; }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15); padding-block: var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-3); font-size: var(--text-xs); color: #9fadba;
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; align-items: center; justify-content: space-between; } }
.footer-compliance { font-family: var(--font-mono); letter-spacing: 0.02em; }
.footer-legal { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.footer-legal a { color: #9fadba; }
.footer-legal a:hover { color: #fff; text-decoration: underline; }

/* ==========================================================================
   Hero (rebuilt: benefits strip · logo + headline + Shop CTA · vial cluster · stats)
   ========================================================================== */
/* The hero has its own benefits strip, so drop the site announce bar on the home page. */
.home .announce-bar { display: none; }

.hero2 { background: transparent; }

.hero2-strip { background: var(--fixed-dark); color: #fff; }
.hero2-strip-row {
  display: flex; align-items: center; justify-content: center; gap: var(--space-4);
  padding-block: var(--space-3); flex-wrap: wrap;
}
.hero2-benefit {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); letter-spacing: 0.07em; text-transform: uppercase; font-weight: 500;
}
.hero2-benefit svg { width: 15px; height: 15px; flex-shrink: 0; }
@media (min-width: 700px) {
  .hero2-strip-row { gap: 0; }
  .hero2-benefit { padding-inline: var(--space-6); }
  .hero2-benefit + .hero2-benefit { border-left: 1px solid rgba(255,255,255,0.22); }
}

.hero2-main {
  display: grid; grid-template-columns: 1fr; gap: var(--space-6);
  align-items: center; padding-block: var(--space-7);
}
@media (min-width: 900px) { .hero2-main { grid-template-columns: 1fr 1.3fr; gap: var(--space-6); padding-block: var(--space-8); } }

/* Site-wide particle background lives on a fixed canvas behind everything. */
.site-particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; transform: translateZ(0); backface-visibility: hidden; }

.hero2-eyebrow {
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-text-muted); font-weight: 600; margin-bottom: var(--space-4);
  display: flex; align-items: center; gap: var(--space-2);
}
.hero2-eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--color-ink); }
.hero2-copy h1 { font-size: var(--text-3xl); line-height: 1.08; letter-spacing: -0.01em; margin-bottom: var(--space-6); max-width: 16ch; }
@media (min-width: 768px) { .hero2-copy h1 { font-size: var(--text-4xl); } }
.hero2-cta {
  align-self: flex-start;
  font-size: var(--text-xl); padding: 22px 48px; min-height: 68px;
  gap: var(--space-3); letter-spacing: 0.04em;
}
.hero2-cta svg { width: 26px; height: 26px; }
@media (max-width: 620px) {
  .hero2-cta { font-size: var(--text-lg); padding: 18px 36px; min-height: 60px; }
  .hero2-cta svg { width: 22px; height: 22px; }
}

.hero2-vials { display: flex; align-items: center; justify-content: center; }
.hero2-vials .vial { height: auto; }
.hv-side { z-index: 1; }
.hv-main { z-index: 2; }
.hv-side .vial__photo { max-height: 300px; }
.hv-main .vial__photo { max-height: 420px; }
.hv-left { margin-right: -58px; }
.hv-right { margin-left: -58px; }
@media (max-width: 620px) {
  .hv-side .vial__photo { max-height: 172px; }
  .hv-main .vial__photo { max-height: 244px; }
  .hv-left { margin-right: -30px; }
  .hv-right { margin-left: -30px; }
}

/* Testimonials — Google reviews */
.testimonials { background: transparent; padding-block: var(--space-8) var(--space-6); }
.section-head.center { align-items: center; text-align: center; }
.reviews-pill {
  display: inline-flex; align-items: center; gap: 8px; margin-top: var(--space-3);
  padding: 8px 16px; border: 1px solid var(--color-border); border-radius: 999px;
  background: var(--color-surface); font-size: var(--text-sm); color: var(--color-ink);
}
.reviews-pill:hover { border-color: var(--color-border-strong); }
.reviews-pill strong { font-weight: 600; }
.reviews-pill .pill-count { color: var(--color-text-muted); }
.rev-stars { display: inline-flex; gap: 1px; }
.rev-star { width: 15px; height: 15px; fill: #f5a623; flex-shrink: 0; }

.testimonial-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 560px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .testimonial-grid { grid-template-columns: repeat(3, 1fr); } }
.testimonial-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-3);
}
.testimonial-card .rev-head { display: flex; }
.testimonial-card blockquote {
  margin: 0; font-size: var(--text-base); line-height: 1.55; color: var(--color-ink);
}
.testimonial-card figcaption {
  display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-3);
  margin-top: auto; padding-top: var(--space-2);
}
.testimonial-card .rev-who { display: flex; flex-direction: column; gap: 1px; }
.testimonial-card .t-author { font-weight: 600; font-size: var(--text-sm); color: var(--color-ink); }
.testimonial-card .t-date { font-size: var(--text-xs); color: var(--color-text-muted); }
.rev-source { display: inline-flex; align-items: center; gap: 5px; font-size: var(--text-xs); font-weight: 600; color: var(--color-text-muted); }
.g-logo { flex-shrink: 0; }

.reviews-more-wrap { text-align: center; margin-top: var(--space-6); }
.reviews-more { display: inline-flex; align-items: center; gap: 8px; font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }
.reviews-more:hover { text-decoration: underline; }

/* Cutaway diagram feature (self-contained infographic image) */
.cutaway-section { background: transparent; padding-top: var(--space-4); padding-bottom: var(--space-7); }
.cutaway-fig { margin: 0 auto; max-width: 920px; }
.cutaway-fig img { width: 100%; height: auto; display: block; }

.hero2-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--color-border);
}
.hero2-stat {
  display: flex; flex-direction: column; align-items: center; gap: var(--space-1);
  padding-block: var(--space-5); text-align: center;
}
.hero2-stat + .hero2-stat { border-left: 1px solid var(--color-border); }
.hero2-stat-num { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-text-muted); }
.hero2-stat-label { font-size: var(--text-xs); font-weight: 600; color: var(--color-ink); text-transform: uppercase; letter-spacing: 0.05em; }
@media (min-width: 700px) { .hero2-stat-label { font-size: var(--text-sm); } }

/* ==========================================================================
   Hero (legacy split layout — retained for reference)
   ========================================================================== */
.hero { padding-block: var(--space-7) var(--space-8); }
.hero-grid { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); } }
.eyebrow {
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-accent); font-weight: 600; margin-bottom: var(--space-4);
  display: flex; align-items: center; gap: var(--space-2);
}
.eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--color-accent); }
.hero h1 { font-size: var(--text-3xl); letter-spacing: -0.01em; margin-bottom: var(--space-4); }
@media (min-width: 768px) { .hero h1 { font-size: var(--text-4xl); } }
.hero-lede { font-size: var(--text-lg); color: var(--color-text); max-width: 46ch; margin-bottom: var(--space-6); }
.hero-actions { display: flex; align-items: center; gap: var(--space-5); flex-wrap: wrap; }
.hero-meta {
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-top: var(--space-6);
  padding-top: var(--space-4); border-top: 1px solid var(--color-border);
  max-width: 46ch;
}
.hero-art { display: flex; justify-content: center; }
.hero-art .vial__photo { max-height: 420px; }

/* ==========================================================================
   Trust bar
   ========================================================================== */
.trust-bar { border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); background: transparent; }
.trust-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-5); padding-block: var(--space-6); }
@media (min-width: 640px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .trust-grid { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); } }
.trust-item { display: flex; gap: var(--space-3); align-items: flex-start; }
.trust-item svg { width: 28px; height: 28px; color: var(--color-accent); flex-shrink: 0; }
.trust-item h3 { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); margin-bottom: 2px; }
.trust-item p { font-size: var(--text-xs); color: var(--color-text-muted); }

/* ==========================================================================
   Section headings
   ========================================================================== */
.section { padding-block: var(--space-8); }
.section-alt { background: transparent; }
.section-head { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-6); }
.section-head h1, .section-head h2 { font-size: var(--text-2xl); }
.section-head p { color: var(--color-text-muted); max-width: 60ch; }
.section-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }

/* ==========================================================================
   Signature spec panel (cutaway vial + COA table)
   ========================================================================== */
.spec-feature { display: grid; gap: var(--space-8); }
@media (min-width: 1024px) { .spec-feature { grid-template-columns: 0.9fr 1.1fr; align-items: center; } }
.spec-diagram { display: flex; justify-content: center; }
.spec-diagram svg { width: 100%; max-width: 440px; height: auto; }
.spec-diagram .leader-label { font-family: var(--font-mono); font-size: 11px; fill: var(--color-text); }
.spec-diagram .leader-line { stroke: var(--color-border-strong); stroke-width: 1; }
.spec-diagram .leader-dot { fill: var(--color-accent); }

.spec-copy .kicker { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-2); }
.spec-copy h2 { font-size: var(--text-2xl); margin-bottom: var(--space-2); }
.spec-copy .subtitle { color: var(--color-text-muted); margin-bottom: var(--space-5); }

.coa-table { border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; margin-bottom: var(--space-6); }
.coa-table table { font-size: var(--text-sm); }
.coa-table th { text-align: left; background: var(--color-bg-subtle); font-weight: 600; color: var(--color-ink); text-transform: uppercase; font-size: var(--text-xs); letter-spacing: 0.04em; }
.coa-table th, .coa-table td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); }
.coa-table tr:last-child td { border-bottom: none; }
.coa-table td:last-child, .coa-table th:last-child { font-family: var(--font-mono); text-align: right; }

.badge-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.compliance-badge {
  display: flex; align-items: center; gap: var(--space-2); border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); font-size: var(--text-xs);
  font-weight: 600; color: var(--color-ink); letter-spacing: 0.02em;
}
.compliance-badge svg { width: 16px; height: 16px; color: var(--color-accent); }

/* ==========================================================================
   Category tiles
   ========================================================================== */
.category-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 640px) { .category-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .category-grid { grid-template-columns: repeat(4, 1fr); } }
.category-card {
  border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-4); transition: border-color .15s ease, box-shadow .15s ease;
}
.category-card:hover { border-color: var(--color-accent); box-shadow: var(--shadow-sm); }
.category-card svg { width: 32px; height: 32px; color: var(--color-accent); }
.category-card h3 { font-size: var(--text-base); }
.category-card p { font-size: var(--text-sm); color: var(--color-text-muted); }
.category-card .btn-link { margin-top: auto; }

/* ==========================================================================
   Product grid & cards
   ========================================================================== */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
@media (min-width: 640px) { .product-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-5); } }
@media (min-width: 1024px) { .product-grid { grid-template-columns: repeat(4, 1fr); } }

.product-card {
  position: relative; /* confines the stretched h3 a::after link to this card */
  display: flex; flex-direction: column; border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: var(--color-surface); overflow: hidden;
  transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
  height: 100%;
}
.product-card:hover { border-color: var(--color-ink); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.product-card-media {
  aspect-ratio: 1 / 1; background: var(--media-bg); display: flex; align-items: center; justify-content: center;
  padding: var(--space-4); position: relative;
}
/* Center the card vial with absolute + transform. Safari mis-centers (and
   mis-sizes) a flex item that has aspect-ratio + height:100%; absolute + translate
   is reliable. The box is pinned to the photo's aspect ratio so the %-positioned
   label lands exactly on the photo. */
.product-card-media .vial {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  height: calc(100% - var(--space-4) * 2);
  aspect-ratio: 1086 / 1448;
}
.product-card-media .vial__photo { width: 100%; height: 100%; object-fit: contain; }

/* ---- Vial composite: real photo + vector brand-label overlay ---- */
.vial { position: relative; display: inline-block; line-height: 0; margin: 0; height: 100%; }
.vial__photo { display: block; height: auto; width: auto; max-width: 100%; max-height: 100%; }
.vial__label {
  position: absolute; left: 29.5%; right: 29.5%; top: 44.5%; bottom: 14.5%;
  pointer-events: none;
}
/* Give the SVG explicit 100% dimensions inside the positioned wrapper — Safari
   mis-sizes an <svg> that is sized only by CSS insets. Fonts via CSS (not SVG
   presentation attributes, where var() is invalid and Safari falls to serif). */
.vial__label-art { display: block; width: 100%; height: 100%; overflow: visible; }
.vial__label-art text { font-family: var(--font-sans); }
.vial__label-art .sku { font-family: var(--font-mono); }
.stock-flag {
  position: absolute; top: var(--space-2); left: var(--space-2); z-index: 3;
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 5px 10px; border-radius: 999px; font-family: var(--font-mono); line-height: 1;
  box-shadow: var(--shadow-sm);
}
.stock-flag.low { background: #f97316; color: #0b0f14; }   /* orange */
.stock-flag.out { background: #dc2626; color: #ffffff; }   /* red */
/* Out-of-stock: grey out the product imagery so it's unmistakable */
.product-card.is-out .product-card-media .vial { opacity: 0.4; }
.product-card.is-out .product-card-media { background: var(--color-bg-subtle); }
.product-card-body { padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); flex: 1; }
.product-sku { font-family: var(--font-mono); font-size: 11px; color: var(--color-text-muted); letter-spacing: 0.02em; }
.product-card-body h3 { font-size: var(--text-sm); font-weight: 600; line-height: 1.35; }
.product-card-body h3 a::after { content: ''; position: absolute; inset: 0; }
.product-purity { font-size: var(--text-xs); color: var(--color-text-muted); }
.product-price { font-family: var(--font-mono); font-size: var(--text-base); font-weight: 600; color: var(--color-ink); margin-top: auto; }
.product-price .from { font-family: var(--font-sans); font-size: 10px; text-transform: uppercase; color: var(--color-text-muted); font-weight: 500; letter-spacing: 0.04em; display: block; }
.product-card-cta { position: relative; z-index: 1; margin-top: var(--space-2); }

/* ==========================================================================
   Shop layout (filters + grid)
   ========================================================================== */
.shop-layout { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
@media (min-width: 900px) { .shop-layout { grid-template-columns: 240px 1fr; align-items: start; } }
.filter-rail { flex-direction: column; gap: var(--space-6); }
.filter-group h3 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-3); color: var(--color-ink); }
.filter-option { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); padding-block: var(--space-1); min-height: 32px; }
.filter-option input { width: 16px; height: 16px; accent-color: var(--color-accent); }
.filter-count { color: var(--color-text-muted); font-family: var(--font-mono); font-size: var(--text-xs); margin-left: auto; }
.shop-search-input {
  width: 100%; height: 44px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  padding: 0 var(--space-3); font-size: var(--text-sm); background: var(--color-surface);
}
.shop-search-input:focus { border-color: var(--color-accent); }

.shop-toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); flex-wrap: wrap; }
.shop-toolbar .result-count { font-size: var(--text-sm); color: var(--color-text-muted); }
.shop-toolbar select {
  border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm); background: var(--color-surface); min-height: 40px;
}
.mobile-filter-toggle {
  display: flex; align-items: center; gap: var(--space-2); border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3); font-size: var(--text-sm); font-weight: 600;
  min-height: 40px;
}
@media (min-width: 900px) { .mobile-filter-toggle { display: none; } }
.filter-rail { display: none; }
.filter-rail.is-open { display: flex; }
@media (min-width: 900px) { .filter-rail { display: flex; } }

.empty-state { padding: var(--space-8) var(--space-4); text-align: center; color: var(--color-text-muted); }
.empty-state h3 { color: var(--color-ink); margin-bottom: var(--space-2); }

/* ==========================================================================
   Product detail page
   ========================================================================== */
.product-detail { display: grid; grid-template-columns: 1fr; gap: var(--space-7); padding-block: var(--space-6) var(--space-8); }
@media (min-width: 900px) { .product-detail { grid-template-columns: 1fr 1fr; gap: var(--space-8); } }
.breadcrumb { display: flex; gap: var(--space-2); font-size: var(--text-xs); color: var(--color-text-muted); margin-bottom: var(--space-5); flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--color-accent); text-decoration: underline; }
.pd-gallery { background: var(--media-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; padding: var(--space-6); }
.pd-gallery .vial { height: auto; }
.pd-gallery .vial__photo { max-height: 460px; }
.pd-info h1 { font-size: var(--text-2xl); margin-bottom: var(--space-2); }
.pd-meta { display: flex; align-items: center; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-5); flex-wrap: wrap; }
.pd-meta .product-sku { font-size: var(--text-sm); }
.pd-price { font-family: var(--font-mono); font-size: var(--text-xl); font-weight: 600; color: var(--color-ink); margin-bottom: var(--space-5); }
.pd-price small { font-family: var(--font-sans); font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); }
.field-group { margin-bottom: var(--space-5); }
.field-group > label, .field-group > span.label { display: block; font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-3); }
.variant-options { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.variant-btn {
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm); font-weight: 600; min-height: 44px; background: var(--color-surface);
}
.variant-btn[aria-pressed="true"] { border-color: var(--color-accent); background: var(--color-accent-tint); color: var(--color-accent); }
.qty-stepper { display: inline-flex; align-items: center; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); }
.qty-stepper button { width: 44px; height: 44px; font-size: var(--text-lg); font-weight: 600; }
.qty-stepper input { width: 48px; height: 44px; text-align: center; border: none; border-left: 1px solid var(--color-border); border-right: 1px solid var(--color-border); font-family: var(--font-mono); font-size: var(--text-base); background: var(--color-surface); color: var(--color-ink); }
.pd-actions { display: flex; gap: var(--space-3); margin-bottom: var(--space-6); flex-wrap: wrap; }
.pd-actions .btn-primary { flex: 1; min-width: 200px; }
.add-confirm { display: none; align-items: center; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-accent); font-weight: 600; margin-bottom: var(--space-5); }
.add-confirm.is-visible { display: flex; }
.add-confirm svg { width: 18px; height: 18px; }

.pd-disclaimer { background: var(--color-bg-subtle); border-left: 3px solid var(--color-accent); padding: var(--space-4); font-size: var(--text-xs); color: var(--color-text); margin-bottom: var(--space-6); }

.accordion-item { border-top: 1px solid var(--color-border); }
.accordion-item:last-child { border-bottom: 1px solid var(--color-border); }
.accordion-trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) 0;
  font-weight: 600; font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-ink);
  min-height: 44px;
}
.accordion-trigger svg { width: 18px; height: 18px; transition: transform .15s ease; flex-shrink: 0; }
.accordion-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.accordion-panel { display: none; padding-bottom: var(--space-5); font-size: var(--text-sm); }
.accordion-panel.is-open { display: block; }
.spec-list { display: flex; flex-direction: column; gap: var(--space-2); }
.spec-list-row { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-2) 0; border-bottom: 1px dashed var(--color-border); font-size: var(--text-sm); }
.spec-list-row dt { color: var(--color-text-muted); }
.spec-list-row dd { font-family: var(--font-mono); font-weight: 500; color: var(--color-ink); text-align: right; }

.related-heading { font-size: var(--text-lg); margin-bottom: var(--space-5); }

/* ==========================================================================
   Cart page
   ========================================================================== */
.cart-layout { display: grid; grid-template-columns: 1fr; gap: var(--space-7); padding-block: var(--space-6) var(--space-8); }
@media (min-width: 900px) { .cart-layout { grid-template-columns: 1fr 340px; align-items: start; } }
.cart-items { display: flex; flex-direction: column; }
.cart-line { display: grid; grid-template-columns: 72px 1fr; gap: var(--space-4); padding-block: var(--space-5); border-bottom: 1px solid var(--color-border); }
.cart-line-media { background: var(--media-bg); border: 1px solid var(--color-border); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; padding: var(--space-1); }
.cart-line-media .vial { height: auto; }
.cart-line-media .vial__photo { max-height: 88px; }
.cart-line-body { display: flex; flex-direction: column; gap: var(--space-2); }
.cart-line-top { display: flex; justify-content: space-between; gap: var(--space-3); }
.cart-line-title { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }
.cart-line-variant { font-size: var(--text-xs); color: var(--color-text-muted); }
.cart-line-price { font-family: var(--font-mono); font-weight: 600; color: var(--color-ink); white-space: nowrap; }
.cart-line-controls { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.remove-line { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-muted); text-decoration: underline; min-height: 44px; display: inline-flex; align-items: center; }
.remove-line:hover { color: var(--color-accent); }

.order-summary { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); position: sticky; top: calc(var(--header-h) + var(--space-4)); }
.order-summary h2 { font-size: var(--text-base); margin-bottom: var(--space-4); }
.summary-row { display: flex; justify-content: space-between; font-size: var(--text-sm); padding-block: var(--space-2); }
.summary-row.total { border-top: 1px solid var(--color-border); margin-top: var(--space-2); padding-top: var(--space-4); font-weight: 600; color: var(--color-ink); font-size: var(--text-base); }
.summary-row .amount { font-family: var(--font-mono); }
.order-summary .btn { margin-top: var(--space-5); }
.summary-note { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-3); }
.ship-hint { font-size: var(--text-xs); font-weight: 600; color: var(--color-ink); margin-top: var(--space-3); }
.ship-hint:empty { display: none; }

.cart-empty { text-align: center; padding: var(--space-9) var(--space-4); }
.cart-empty svg { width: 64px; height: 64px; color: var(--color-border-strong); margin: 0 auto var(--space-5); }
.cart-empty h2 { font-size: var(--text-xl); margin-bottom: var(--space-3); }
.cart-empty p { color: var(--color-text-muted); margin-bottom: var(--space-6); }

.confirmation { text-align: center; padding: var(--space-9) var(--space-4); max-width: 560px; margin-inline: auto; }
.confirmation svg { width: 56px; height: 56px; color: var(--color-accent); margin: 0 auto var(--space-5); }
.confirmation h2 { font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.confirmation p { color: var(--color-text-muted); margin-bottom: var(--space-3); }
.confirmation .order-number { font-family: var(--font-mono); background: var(--color-bg-subtle); display: inline-block; padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); margin-bottom: var(--space-6); font-weight: 600; color: var(--color-ink); }

/* ---- Guest checkout ---- */
.checkout-step { padding-block: var(--space-5) var(--space-8); }
.checkout-back { display: inline-flex; align-items: center; gap: 6px; font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); margin-bottom: var(--space-4); min-height: 44px; }
.checkout-back:hover { color: var(--color-accent); }
.checkout-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-6); align-items: start; }
@media (min-width: 900px) { .checkout-grid { grid-template-columns: 1fr 340px; } }
.checkout-form fieldset { border: none; margin: 0 0 var(--space-6); padding: 0; }
.checkout-form legend { font-size: var(--text-base); font-weight: 600; color: var(--color-ink); padding: 0 0 var(--space-3); width: 100%; border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-4); }
.checkout-form legend .opt { font-weight: 400; color: var(--color-text-muted); font-size: var(--text-xs); }
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: var(--space-4); }
.field:last-child { margin-bottom: 0; }
.field label { font-size: var(--text-sm); font-weight: 500; color: var(--color-ink); }
.field label .opt { font-weight: 400; color: var(--color-text-muted); }
.field input, .field select, .field textarea {
  font-family: var(--font-sans); font-size: var(--text-base); padding: 11px var(--space-3);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-ink); width: 100%; min-height: 44px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; border-color: var(--color-accent); }
.field input.is-invalid, .field select.is-invalid { border-color: #dc2626; }
.field textarea { min-height: 84px; resize: vertical; }
.field-hint { font-size: var(--text-xs); color: var(--color-text-muted); }
.field-error { font-size: var(--text-xs); color: #dc2626; font-weight: 500; }
.field-error:empty { display: none; }
.field-row { display: grid; grid-template-columns: 1fr; gap: var(--space-3); }
@media (min-width: 520px) { .field-row { grid-template-columns: 1.4fr 0.9fr 0.9fr; } }
.field-row .field { margin-bottom: 0; }
.pay-options { display: flex; flex-direction: column; gap: var(--space-2); }
.pay-option { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); cursor: pointer; min-height: 44px; }
.pay-option:has(input:checked) { border-color: var(--color-accent); box-shadow: inset 0 0 0 1px var(--color-accent); }
.pay-option input { width: 18px; height: 18px; accent-color: var(--color-accent); flex-shrink: 0; }
.pay-option span { display: flex; flex-direction: column; }
.pay-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }
.pay-sub { font-size: var(--text-xs); color: var(--color-text-muted); }
.checkout-error { font-size: var(--text-sm); color: #dc2626; margin-top: var(--space-3); }
.checkout-error:empty { display: none; }
.checkout-disclaimer { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-4); line-height: 1.5; }
.checkout-summary .co-size { color: var(--color-text-muted); }
.discount-box { margin: var(--space-4) 0; padding-top: var(--space-4); border-top: 1px solid var(--color-border); }
.discount-row { display: flex; gap: var(--space-2); }
.discount-row input {
  flex: 1; min-width: 0; font-family: var(--font-mono); text-transform: uppercase; font-size: var(--text-sm);
  padding: 10px var(--space-3); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-ink); min-height: 44px;
}
.discount-row input::placeholder { text-transform: none; letter-spacing: 0; }
.discount-row input:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; border-color: var(--color-accent); }
.discount-row .btn { flex: 0 0 auto; }
.discount-msg { font-size: var(--text-xs); margin-top: var(--space-2); }
.discount-msg:empty { display: none; }
.discount-msg.ok { color: #157347; font-weight: 600; }
.discount-msg.err { color: #dc2626; }

/* ==========================================================================
   Simple content pages (about/contact)
   ========================================================================== */
.page-hero { padding-block: var(--space-7) var(--space-6); border-bottom: 1px solid var(--color-border); }
.page-hero h1 { font-size: var(--text-3xl); margin-bottom: var(--space-3); }
.page-hero p { color: var(--color-text-muted); max-width: 60ch; font-size: var(--text-lg); }
.prose { max-width: 72ch; }
.prose h2 { font-size: var(--text-xl); margin-block: var(--space-6) var(--space-3); }
.prose p { margin-bottom: var(--space-4); }
.prose ul { margin-bottom: var(--space-4); }
.prose li { position: relative; padding-left: var(--space-5); margin-bottom: var(--space-2); }
.prose li::before { content: ''; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; background: var(--color-accent); }

.value-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-5); margin-block: var(--space-6); }
@media (min-width: 768px) { .value-grid { grid-template-columns: repeat(3, 1fr); } }
.value-card { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); }
.value-card svg { width: 28px; height: 28px; color: var(--color-accent); margin-bottom: var(--space-3); }
.value-card h3 { font-size: var(--text-base); margin-bottom: var(--space-2); }
.value-card p { font-size: var(--text-sm); color: var(--color-text-muted); }

.contact-layout { display: grid; grid-template-columns: 1fr; gap: var(--space-7); padding-block: var(--space-6) var(--space-8); }
@media (min-width: 900px) { .contact-layout { grid-template-columns: 1fr 1.2fr; } }
.contact-info-card { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); margin-bottom: var(--space-4); }
.contact-info-card h3 { font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-2); }
.contact-info-card p, .contact-info-card a { font-size: var(--text-sm); color: var(--color-text-muted); }

.form-field { margin-bottom: var(--space-5); }
.form-field label { display: block; font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); margin-bottom: var(--space-2); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  padding: var(--space-3); font-size: var(--text-base); background: var(--color-surface); min-height: 44px;
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--color-accent); }
.form-error { display: none; color: #7a1220; font-size: var(--text-xs); margin-top: var(--space-2); font-weight: 600; }
.form-field.has-error input, .form-field.has-error textarea, .form-field.has-error select { border-color: #7a1220; }
.form-field.has-error .form-error { display: block; }
.form-success { background: var(--color-accent-tint); border: 1px solid var(--color-accent); color: var(--color-accent); padding: var(--space-4); border-radius: var(--radius-sm); font-size: var(--text-sm); font-weight: 600; margin-bottom: var(--space-5); display: none; }
.form-success.is-visible { display: block; }
.form-success.is-error { background: #fdf2f2; border-color: #dc2626; color: #b91c1c; }
.form-success.is-error a { color: #b91c1c; text-decoration: underline; }

.newsletter { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-4); }
.newsletter input { flex: 1; min-width: 200px; height: 44px; border: 1px solid rgba(255,255,255,0.25); border-radius: var(--radius-sm); background: rgba(255,255,255,0.08); color: #fff; padding: 0 var(--space-3); }
.newsletter input::placeholder { color: #a9b7c4; }
.newsletter .btn { background: #fff; color: var(--color-accent); }
.newsletter .btn:hover { background: #e6e8ea; }

.toast {
  position: fixed; bottom: var(--space-5); left: 50%; transform: translateX(-50%) translateY(120%);
  background: var(--fixed-dark); color: #fff; padding: var(--space-3) var(--space-5); border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 600; box-shadow: var(--shadow-md); z-index: 300; transition: transform .2s ease;
  display: flex; align-items: center; gap: var(--space-2);
}
.toast.is-visible { transform: translateX(-50%) translateY(0); }
.toast svg { width: 18px; height: 18px; color: #6fd08a; }

@media (min-width: 640px) { .cart-line { grid-template-columns: 96px 1fr; } }
