@media (prefers-color-scheme: light) {
  :root {
    --text-50: #111418;
    --text-100: #1c1f24;
    --text-200: #2b323b;
    --text-300: #434c56;
    --text-400: #5f6974;
    --text-500: #7c8793;
    --text-600: #9eabb7;
    --text-700: #c0c9d1;
    --text-800: #d8dee4;
    --text-900: #e8eef2;
    --text-950: #f2f5f7;

    --background-50: #0b0f14;
    --background-100: #0e1319;
    --background-200: #11161d;
    --background-300: #151c24;
    --background-400: #1c242e;
    --background-500: #26303b;
    --background-600: #35414e;
    --background-700: #52606d;
    --background-800: #7a8793;
    --background-900: #d8dee4;
    --background-950: #f2f5f7;

    --primary-50: #041214;
    --primary-100: #082226;
    --primary-200: #0d3940;
    --primary-300: #115b65;
    --primary-400: #1b9eac;
    --primary-500: #27d7e7;
    --primary-600: #52dfec;
    --primary-700: #7be7f0;
    --primary-800: #a8eff4;
    --primary-900: #d7fafc;
    --primary-950: #f3feff;

    --secondary-50: #140b03;
    --secondary-100: #281506;
    --secondary-200: #4e2a0c;
    --secondary-300: #784013;
    --secondary-400: #ad621d;
    --secondary-500: #f28c28;
    --secondary-600: #f6a451;
    --secondary-700: #f9bc7f;
    --secondary-800: #fbcfa7;
    --secondary-900: #fde6d2;
    --secondary-950: #fff5ea;

    --accent-50: #041214;
    --accent-100: #082226;
    --accent-200: #0d3940;
    --accent-300: #13606b;
    --accent-400: #1dafbe;
    --accent-500: #27d7e7;
    --accent-600: #5ee1ec;
    --accent-700: #89eaf0;
    --accent-800: #b6f2f6;
    --accent-900: #def9fb;
    --accent-950: #f6feff;

    --hero-spec-panel-bg: linear-gradient(
      180deg,
      color-mix(in srgb, var(--background-100) 92%, transparent),
      color-mix(in srgb, var(--background-50) 84%, transparent)
    );
    --hero-spec-panel-border: color-mix(in srgb, var(--accent-500) 22%, var(--text-500) 78%);
    --hero-spec-label: var(--text-700);
    --hero-spec-value: var(--text-950);
    --science-heading: var(--text-900);
    --science-body: var(--text-700);
    --science-eyebrow: var(--text-600);
    --science-panel-label: var(--text-600);
    --science-panel-value: var(--text-900);
    --brand-mark-border: color-mix(in srgb, var(--secondary-500) 70%, var(--text-500) 30%);
    --brand-mark-ring: color-mix(in srgb, var(--secondary-500) 22%, transparent);
    --brand-mark-glow: color-mix(in srgb, var(--secondary-500) 34%, transparent);
    --brand-mark-core: #f28c28;
    --brand-mark-depth: #b65e11;
    --hero-video-panel-bg: linear-gradient(
      180deg,
      color-mix(in srgb, var(--background-100) 94%, transparent),
      color-mix(in srgb, var(--background-50) 86%, transparent)
    );
    --hero-video-panel-border: color-mix(in srgb, var(--brand-mark-core) 18%, var(--text-500) 82%);
    --hero-video-chrome: var(--text-700);
    --hero-video-hint-bg: color-mix(in srgb, var(--background-100) 52%, transparent);
    --hero-video-hint-text: var(--text-950);
    --hero-copy-heading: var(--text-950);
    --hero-copy-body: var(--text-800);
    --hero-copy-soft: var(--text-700);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --text-50: #111418;
    --text-100: #1c1f24;
    --text-200: #2b323b;
    --text-300: #434c56;
    --text-400: #5f6974;
    --text-500: #7c8793;
    --text-600: #9eabb7;
    --text-700: #c0c9d1;
    --text-800: #d8dee4;
    --text-900: #e8eef2;
    --text-950: #f2f5f7;

    --background-50: #0b0f14;
    --background-100: #0e1319;
    --background-200: #11161d;
    --background-300: #151c24;
    --background-400: #1c242e;
    --background-500: #26303b;
    --background-600: #35414e;
    --background-700: #52606d;
    --background-800: #7a8793;
    --background-900: #d8dee4;
    --background-950: #f2f5f7;

    --primary-50: #041214;
    --primary-100: #082226;
    --primary-200: #0d3940;
    --primary-300: #115b65;
    --primary-400: #1b9eac;
    --primary-500: #27d7e7;
    --primary-600: #52dfec;
    --primary-700: #7be7f0;
    --primary-800: #a8eff4;
    --primary-900: #d7fafc;
    --primary-950: #f3feff;

    --secondary-50: #140b03;
    --secondary-100: #281506;
    --secondary-200: #4e2a0c;
    --secondary-300: #784013;
    --secondary-400: #ad621d;
    --secondary-500: #f28c28;
    --secondary-600: #f6a451;
    --secondary-700: #f9bc7f;
    --secondary-800: #fbcfa7;
    --secondary-900: #fde6d2;
    --secondary-950: #fff5ea;

    --accent-50: #041214;
    --accent-100: #082226;
    --accent-200: #0d3940;
    --accent-300: #13606b;
    --accent-400: #1dafbe;
    --accent-500: #27d7e7;
    --accent-600: #5ee1ec;
    --accent-700: #89eaf0;
    --accent-800: #b6f2f6;
    --accent-900: #def9fb;
    --accent-950: #f6feff;

    --hero-spec-panel-bg: linear-gradient(
      180deg,
      color-mix(in srgb, var(--background-100) 92%, transparent),
      color-mix(in srgb, var(--background-50) 84%, transparent)
    );
    --hero-spec-panel-border: color-mix(in srgb, var(--accent-500) 22%, var(--text-500) 78%);
    --hero-spec-label: var(--text-700);
    --hero-spec-value: var(--text-950);
    --science-heading: var(--text-900);
    --science-body: var(--text-700);
    --science-eyebrow: var(--text-600);
    --science-panel-label: var(--text-600);
    --science-panel-value: var(--text-900);
    --brand-mark-border: color-mix(in srgb, var(--secondary-500) 70%, var(--text-500) 30%);
    --brand-mark-ring: color-mix(in srgb, var(--secondary-500) 22%, transparent);
    --brand-mark-glow: color-mix(in srgb, var(--secondary-500) 34%, transparent);
    --brand-mark-core: #f28c28;
    --brand-mark-depth: #b65e11;
    --hero-video-panel-bg: linear-gradient(
      180deg,
      color-mix(in srgb, var(--background-100) 94%, transparent),
      color-mix(in srgb, var(--background-50) 86%, transparent)
    );
    --hero-video-panel-border: color-mix(in srgb, var(--brand-mark-core) 18%, var(--text-500) 82%);
    --hero-video-chrome: var(--text-700);
    --hero-video-hint-bg: color-mix(in srgb, var(--background-100) 52%, transparent);
    --hero-video-hint-text: var(--text-950);
    --hero-copy-heading: var(--text-950);
    --hero-copy-body: var(--text-800);
    --hero-copy-soft: var(--text-700);
  }
}

:root {
  color-scheme: dark;
  --page-bg: var(--background-50);
  --page-bg-elevated: color-mix(in srgb, var(--background-100) 88%, var(--background-300) 12%);
  --page-bg-strong: var(--background-100);
  --surface: color-mix(in srgb, var(--background-100) 94%, transparent);
  --surface-strong: color-mix(in srgb, var(--background-200) 90%, var(--background-400) 10%);
  --surface-contrast: color-mix(in srgb, var(--background-200) 92%, var(--background-900) 8%);
  --surface-glass: color-mix(in srgb, var(--background-100) 78%, transparent);
  --border-soft: color-mix(in srgb, var(--text-800) 14%, transparent);
  --border-strong: color-mix(in srgb, var(--accent-500) 34%, transparent);
  --text-main: var(--text-950);
  --text-muted: var(--text-800);
  --text-soft: color-mix(in srgb, var(--text-700) 82%, var(--text-500) 18%);
  --accent: var(--accent-500);
  --accent-soft: color-mix(in srgb, var(--accent-500) 16%, transparent);
  --accent-warm: var(--secondary-500);
  --hero-bg: radial-gradient(circle at 75% 25%, color-mix(in srgb, var(--accent-500) 14%, transparent), transparent 38%),
    radial-gradient(circle at 72% 34%, color-mix(in srgb, var(--secondary-500) 12%, transparent), transparent 33%),
    linear-gradient(135deg, var(--background-50), color-mix(in srgb, var(--background-100) 92%, var(--background-300) 8%) 42%, color-mix(in srgb, var(--background-200) 92%, var(--background-400) 8%));
  --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.24);
  --shadow-float: 0 28px 80px rgba(0, 0, 0, 0.34);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 36px;
  --container: min(1180px, calc(100vw - 2rem));
  --header-height: 86px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top, color-mix(in srgb, var(--accent-500) 8%, transparent), transparent 32%),
    radial-gradient(circle at 78% 0%, color-mix(in srgb, var(--secondary-500) 6%, transparent), transparent 26%),
    linear-gradient(180deg, var(--page-bg) 0%, color-mix(in srgb, var(--page-bg) 94%, var(--background-100) 6%) 100%);
  color: var(--text-main);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.home-page > main {
  display: flex;
  flex-direction: column;
}

body.home-page > main > * {
  width: 100%;
}

body.home-page > main > .hero {
  order: 1;
}

body.home-page > main > .products {
  order: 2;
}

body.home-page > main > .science {
  order: 3;
}

body.home-page > main > .standards {
  order: 4;
}

body.home-page > main > .categories {
  order: 5;
}

body.home-page > main > .differentiation {
  display: none;
}

body.home-page > main > .faq {
  order: 7;
}

body.home-page > main > .final-cta {
  order: 8;
}

body.categories-page {
  --catalog-category-columns: 4;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.utility-bar {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--page-bg-strong) 88%, transparent);
  color: var(--text-soft);
}

.utility-bar__inner {
  display: flex;
  justify-content: center;
  gap: 1.4rem;
  padding: 0.5rem 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.utility-bar__inner p {
  position: relative;
  margin: 0;
}

.utility-bar__inner p + p::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -0.75rem;
  width: 3px;
  height: 3px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-warm) 62%, var(--text-soft) 38%);
  transform: translateY(-50%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--page-bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--border-soft);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.22);
  background: color-mix(in srgb, var(--page-bg) 86%, var(--page-bg-strong) 14%);
}

.site-header__inner {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  justify-self: start;
}

.brand__mark {
  width: 1.15rem;
  height: 1.15rem;
  border: 1px solid var(--brand-mark-border);
  border-radius: 999px;
  box-shadow:
    0 0 0 4px var(--brand-mark-ring),
    inset 0 0 18px var(--brand-mark-glow);
  background:
    radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--brand-mark-core) 88%, white 12%), transparent 48%),
    radial-gradient(circle at 70% 65%, color-mix(in srgb, var(--brand-mark-depth) 72%, transparent), transparent 56%);
}

.brand__logo {
  height: 64px;
  width: auto;
  display: block;
  object-fit: contain;
}

.brand__text {
  display: grid;
  gap: 0.1rem;
}

.brand strong {
  font-size: 0.95rem;
  letter-spacing: 0.34em;
  line-height: 1;
  text-transform: uppercase;
}

.brand small {
  color: var(--text-soft);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  justify-content: center;
}

.main-nav a,
.site-footer__links a {
  color: var(--text-muted);
  transition: color 180ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--accent-700);
}

.header-actions {
  display: flex;
  gap: 0.55rem;
  justify-content: end;
  justify-self: end;
}

.icon-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-strong) 38%, transparent);
  color: var(--text-main);
  transition:
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease,
    background-color 180ms ease;
}

.icon-button:hover,
.icon-button:focus-visible {
  transform: translateY(-2px);
  color: var(--accent-700);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border-soft) 60%);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #000;
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
  pointer-events: none;
}
.cart-badge:empty { display: none; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-strong) 38%, transparent);
  color: var(--text-main);
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.nav-toggle span {
  display: block;
  width: 1rem;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 200ms ease, opacity 200ms ease;
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.icon-button svg {
  width: 1.15rem;
  height: 1.15rem;
  margin: auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero {
  position: relative;
  overflow: clip;
  min-height: clamp(42rem, calc(100svh - var(--header-height) + 1.5rem), 54rem);
  background: var(--hero-bg);
  isolation: isolate;
}

.hero__video-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__background-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
  filter: saturate(1.04) contrast(1.08) brightness(0.95);
}

.hero__video-shine {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(112deg, transparent 18%, color-mix(in srgb, white 14%, transparent) 34%, transparent 48%),
    radial-gradient(circle at 72% 42%, color-mix(in srgb, var(--brand-mark-core) 14%, transparent), transparent 28%);
  mix-blend-mode: screen;
  opacity: 0.64;
  pointer-events: none;
}

.hero__backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, #071112 76%, transparent) 0%, color-mix(in srgb, #071112 46%, transparent) 28%, color-mix(in srgb, #071112 12%, transparent) 58%, color-mix(in srgb, #071112 22%, transparent) 100%),
    linear-gradient(180deg, color-mix(in srgb, #071112 12%, transparent) 0%, color-mix(in srgb, #071112 34%, transparent) 100%),
    radial-gradient(circle at 72% 38%, color-mix(in srgb, var(--brand-mark-core) 14%, transparent), transparent 24%);
  opacity: 1;
}

.hero__network,
.science__network,
.site-footer__network {
  position: absolute;
  inset: 0;
  color: color-mix(in srgb, var(--accent-600) 24%, var(--text-600) 76%);
  opacity: 0.34;
  pointer-events: none;
}

.hero__network {
  color: color-mix(in srgb, var(--brand-mark-core) 34%, var(--brand-mark-depth) 66%);
  opacity: 0.28;
}

.hero-network__lines path {
  fill: none;
  stroke: currentColor;
  stroke-opacity: 0.32;
  stroke-width: 1;
}

.hero-network__nodes circle {
  fill: color-mix(in srgb, currentColor 75%, white 25%);
  fill-opacity: 0.45;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 22rem);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  padding-top: clamp(4.5rem, 8vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 6rem);
}

.hero__copy {
  max-width: 35rem;
  text-shadow: 0 10px 40px rgba(0, 0, 0, 0.24);
}

.eyebrow,
.label,
.product-card__meta {
  margin: 0 0 1rem;
  color: var(--text-soft);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 0.92;
}

.hero h1 {
  max-width: 10ch;
  font-size: clamp(3.2rem, 7vw, 6.45rem);
  color: var(--hero-copy-heading);
}

.headline-accent {
  display: inline-block;
}

.headline-accent--cool {
  background: linear-gradient(135deg, var(--text-950) 0%, color-mix(in srgb, var(--accent) 82%, white 18%) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.headline-accent--warm {
  background: linear-gradient(135deg, var(--text-950) 0%, color-mix(in srgb, var(--accent-warm) 90%, white 10%) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.hero__lede,
.section-heading p,
.pillar p,
.category-panel p,
.product-card p,
.standard-item p,
.science-stat strong,
.faq-list p,
.site-footer__brand p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 1.02rem;
}

.hero__lede {
  max-width: 33rem;
  margin-top: 1.6rem;
  font-size: 1.08rem;
  color: var(--hero-copy-body);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.35rem;
  padding: 0 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  color: var(--text-50);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 86%, white 14%), color-mix(in srgb, var(--primary-500) 80%, white 20%));
  box-shadow: 0 20px 44px color-mix(in srgb, var(--accent) 18%, transparent);
}

.button--primary:hover,
.button--primary:focus-visible {
  box-shadow: 0 24px 54px color-mix(in srgb, var(--accent) 24%, transparent);
}

.button--secondary {
  border-color: color-mix(in srgb, var(--text-700) 16%, transparent);
  background: color-mix(in srgb, var(--background-950) 12%, transparent);
  color: var(--text-main);
}

.button--secondary:hover,
.button--secondary:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border-soft) 72%);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.4rem;
  margin: 2.2rem 0 0;
  padding: 0;
  list-style: none;
}

.hero__trust li {
  position: relative;
  color: var(--hero-copy-soft);
  font-size: 0.87rem;
  padding-left: 1rem;
}

.hero .eyebrow {
  color: var(--hero-copy-soft);
}

.hero .button--secondary {
  color: var(--hero-copy-heading);
  border-color: color-mix(in srgb, white 12%, transparent);
  background: color-mix(in srgb, #071112 24%, transparent);
}

.hero__trust li::before {
  content: "";
  position: absolute;
  top: 0.58rem;
  left: 0;
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-warm) 86%, white 14%);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent-warm) 10%, transparent);
}

.hero__payment-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 1.5rem;
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--background-100) 60%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 12%, var(--border-soft) 88%);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-700);
}

.hero__payment-strip span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hero__payment-strip span::before {
  content: "";
  width: 0.32rem;
  height: 0.32rem;
  border-radius: 999px;
  background: var(--accent);
  flex-shrink: 0;
}

.products__reassurance {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-600);
  margin-top: 1.5rem;
}

.hero__visual {
  position: relative;
  min-height: 43rem;
  display: grid;
  place-items: center;
}

.hero-glow {
  position: absolute;
  inset: 12% 8% 2%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 40% 40%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 33%),
    radial-gradient(circle at 65% 45%, color-mix(in srgb, var(--primary-400) 18%, transparent), transparent 35%);
  filter: blur(18px);
  opacity: 0.95;
}

.hero-video-stage {
  position: relative;
  width: min(100%, 40rem);
  aspect-ratio: 0.94;
}

.hero-video-stage::before {
  content: "";
  position: absolute;
  inset: 10% 8% 5%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--brand-mark-core) 18%, transparent), transparent 48%),
    radial-gradient(circle at 58% 40%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 54%);
  filter: blur(20px);
}

.hero-video-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  padding: 1rem;
  border-radius: 2.3rem;
  overflow: hidden;
  border: 1px solid var(--hero-video-panel-border);
  background: var(--hero-video-panel-bg);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-float);
}

.hero-video-shell::before {
  content: "";
  position: absolute;
  inset: 0.75rem;
  border-radius: 1.75rem;
  border: 1px solid color-mix(in srgb, white 8%, transparent);
  opacity: 0.32;
  pointer-events: none;
}

.hero-video-shell__chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.2rem 0.35rem 0.95rem;
  color: var(--hero-video-chrome);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-video-shell__viewport {
  position: relative;
  height: calc(100% - 2.25rem);
  overflow: hidden;
  border-radius: 1.65rem;
  border: 1px solid color-mix(in srgb, var(--brand-mark-core) 12%, var(--text-700) 88%);
  background:
    radial-gradient(circle at 50% 10%, color-mix(in srgb, var(--brand-mark-core) 10%, transparent), transparent 36%),
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 96%, transparent), color-mix(in srgb, var(--page-bg-strong) 84%, transparent));
}

.hero-video-shell__viewport::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 26%;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--page-bg) 32%, transparent));
  pointer-events: none;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.03);
  filter: saturate(0.9) contrast(1.06) brightness(0.95);
}

.hero-video-shell__shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(112deg, transparent 22%, color-mix(in srgb, white 16%, transparent) 38%, transparent 52%);
  mix-blend-mode: screen;
  opacity: 0.5;
  pointer-events: none;
}

.hero-video-shell__hint {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  margin: 0;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, white 10%, transparent);
  background: var(--hero-video-hint-bg);
  backdrop-filter: blur(12px);
  color: var(--hero-video-hint-text);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.vial-cluster {
  position: relative;
  width: min(100%, 42rem);
  height: 38rem;
}

.vial-card {
  position: absolute;
  border-radius: 2rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--background-950) 12%, transparent), color-mix(in srgb, var(--background-950) 38%, transparent)),
    color-mix(in srgb, var(--background-950) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--text-700) 10%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-float);
}

.vial-card--feature {
  inset: 0.3rem 4.8rem 3rem 5.7rem;
  display: grid;
  place-items: center;
}

.vial-card--small {
  width: 12rem;
  height: 16.5rem;
  display: grid;
  place-items: center;
}

.vial-card--left {
  left: 0.3rem;
  bottom: 5.5rem;
  transform: rotate(-7deg);
}

.vial-card--right {
  right: 0.1rem;
  top: 2.6rem;
  transform: rotate(8deg);
}

.vial-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.35rem;
  filter: drop-shadow(0 28px 48px color-mix(in srgb, var(--background-950) 28%, transparent));
}

.vial-card__image--feature {
  padding: 0.65rem;
}

.vial {
  position: relative;
  width: 8.4rem;
  height: 15.5rem;
}

.vial--feature {
  width: 14.8rem;
  height: 25rem;
}

.vial__cap {
  position: absolute;
  top: 0;
  left: 50%;
  width: 42%;
  height: 14%;
  border-radius: 1rem 1rem 0.5rem 0.5rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--background-950) 92%, white 8%), color-mix(in srgb, var(--background-800) 82%, var(--background-950) 18%));
  border: 1px solid color-mix(in srgb, var(--text-700) 18%, transparent);
  transform: translateX(-50%);
  box-shadow: inset 0 -8px 20px color-mix(in srgb, black 14%, transparent);
}

.vial__neck {
  position: absolute;
  top: 12%;
  left: 50%;
  width: 22%;
  height: 10%;
  border-radius: 0.4rem;
  transform: translateX(-50%);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--background-900) 64%, white 36%), color-mix(in srgb, var(--background-700) 62%, var(--background-950) 38%));
  border-inline: 1px solid color-mix(in srgb, var(--text-700) 16%, transparent);
}

.vial__body {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 74%;
  height: 76%;
  overflow: hidden;
  border-radius: 1.55rem 1.55rem 1.8rem 1.8rem;
  transform: translateX(-50%);
  background:
    linear-gradient(180deg, color-mix(in srgb, white 48%, var(--background-900) 52%), color-mix(in srgb, var(--background-700) 75%, var(--background-950) 25%) 48%, color-mix(in srgb, var(--background-300) 45%, var(--background-950) 55%) 100%);
  border: 1px solid color-mix(in srgb, white 14%, var(--text-700) 12%);
  box-shadow:
    inset 0 16px 24px color-mix(in srgb, white 12%, transparent),
    inset 0 -26px 36px color-mix(in srgb, black 12%, transparent),
    0 24px 60px color-mix(in srgb, var(--background-950) 26%, transparent);
}

.vial__body::after {
  content: "";
  position: absolute;
  inset: 8% 14% auto;
  height: 2px;
  background: color-mix(in srgb, white 42%, transparent);
  opacity: 0.55;
}

.vial__shine {
  position: absolute;
  inset: 8% auto 8% 8%;
  width: 18%;
  border-radius: 999px;
  background: linear-gradient(180deg, color-mix(in srgb, white 55%, transparent), transparent 72%);
  opacity: 0.68;
}

.vial__liquid {
  position: absolute;
  inset: auto 12% 12% 12%;
  height: 28%;
  border-radius: 1rem 1rem 1.35rem 1.35rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent-800) 82%, white 18%), color-mix(in srgb, var(--primary-500) 55%, var(--accent-500) 45%));
  box-shadow: inset 0 12px 18px color-mix(in srgb, white 12%, transparent);
  opacity: 0.72;
}

.vial__liquid--soft {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--secondary-700) 62%, white 38%), color-mix(in srgb, var(--secondary-500) 56%, var(--primary-500) 44%));
}

.vial__liquid--clear {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--background-900) 58%, white 42%), color-mix(in srgb, var(--accent-700) 36%, var(--background-500) 64%));
  opacity: 0.42;
}

.vial__label {
  position: absolute;
  left: 50%;
  bottom: 18%;
  display: grid;
  gap: 0.25rem;
  width: 72%;
  padding: 0.8rem 0.8rem 0.75rem;
  border-radius: 1rem;
  transform: translateX(-50%);
  background: color-mix(in srgb, var(--text-50) 78%, transparent);
  color: var(--text-100);
  text-align: center;
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, black 8%, transparent),
    0 16px 32px color-mix(in srgb, var(--background-950) 18%, transparent);
}

.vial__label strong {
  font-size: 0.76rem;
  letter-spacing: 0.22em;
}

.vial__label small {
  color: color-mix(in srgb, var(--text-300) 88%, black 12%);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__specs {
  position: relative;
  display: grid;
  gap: 1rem;
  width: min(22rem, 100%);
  justify-self: end;
  align-self: end;
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-md);
  background: var(--hero-spec-panel-bg);
  border: 1px solid var(--hero-spec-panel-border);
  backdrop-filter: blur(12px);
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, white 8%, transparent),
    0 18px 44px color-mix(in srgb, var(--background-950) 18%, transparent);
}

.hero__specs .label {
  color: var(--hero-spec-label);
}

.hero__specs strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1rem;
  color: var(--hero-spec-value);
  line-height: 1.45;
}

.section {
  position: relative;
  padding: clamp(4.8rem, 9vw, 7.8rem) 0;
}

.section-heading {
  display: grid;
  gap: 1.1rem;
  max-width: 42rem;
  margin-bottom: 3rem;
}

.section-heading h2 {
  font-size: clamp(2.2rem, 4.8vw, 4.3rem);
  color: var(--text-950);
}

.standards {
  background: linear-gradient(180deg, color-mix(in srgb, var(--page-bg-elevated) 88%, transparent), var(--page-bg) 100%);
}

.standards-grid,
.category-grid,
.product-grid {
  display: grid;
  gap: 1.2rem;
}

.standards-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.standard-item {
  padding: 1.6rem 1.4rem 1.55rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 94%, transparent), color-mix(in srgb, var(--surface-strong) 88%, transparent));
  box-shadow: var(--shadow-soft);
}

.standard-item svg {
  width: 1.45rem;
  height: 1.45rem;
  margin-bottom: 1.3rem;
  fill: none;
  stroke: color-mix(in srgb, var(--accent-700) 82%, var(--text-muted) 18%);
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.standard-item h3,
.category-panel h3,
.product-card h3,
.pillar h3,
.site-footer__links h3 {
  margin: 0 0 0.7rem;
  font-size: 1.15rem;
  color: var(--text-950);
}

.category-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.category-panel {
  display: block;
  position: relative;
  min-height: 16rem;
  padding: 1.9rem;
  border-radius: calc(var(--radius-lg) - 2px);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border-soft) 70%, transparent);
  background:
    radial-gradient(circle at 84% 18%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 24%),
    linear-gradient(135deg, color-mix(in srgb, var(--page-bg-strong) 96%, transparent), color-mix(in srgb, var(--surface-strong) 92%, var(--page-bg) 8%) 100%);
  box-shadow: var(--shadow-soft);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    background-color 220ms ease;
}

.category-panel:hover,
.category-panel:focus-visible {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, color-mix(in srgb, var(--accent) 58%, var(--accent-warm) 42%) 38%, var(--border-soft) 62%);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.28);
}

.category-panel::before {
  content: "";
  position: absolute;
  top: 1.35rem;
  right: 1.45rem;
  width: 5rem;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, color-mix(in srgb, var(--accent-warm) 88%, transparent) 100%);
  opacity: 0.82;
}

.category-panel::after {
  content: "";
  position: absolute;
  inset: auto -5% -18% 42%;
  height: 68%;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, color-mix(in srgb, var(--accent) 12%, transparent), transparent 55%),
    radial-gradient(circle at 60% 40%, color-mix(in srgb, var(--background-800) 35%, transparent), transparent 58%);
  filter: blur(12px);
}

.category-panel__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 4.4rem;
  padding: 0 0.85rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-warm) 24%, var(--border-soft) 76%);
  color: color-mix(in srgb, var(--accent-warm) 82%, var(--text-800) 18%);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
}

.category-panel p,
.category-panel h3 {
  position: relative;
  z-index: 1;
  max-width: 18rem;
}

.products {
  background: linear-gradient(180deg, var(--page-bg) 0%, color-mix(in srgb, var(--page-bg-elevated) 88%, var(--surface) 12%) 100%);
}

.product-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-card {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.4rem;
  border-radius: calc(var(--radius-md) + 2px);
  border: 1px solid var(--border-soft);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--page-bg-elevated) 90%, transparent));
  box-shadow: var(--shadow-soft);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.product-card:hover,
.product-card:focus-within {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border-soft) 70%);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.28);
}

.product-card__visual {
  display: grid;
  place-items: center;
  min-height: 18rem;
  padding: 1rem;
  border-radius: calc(var(--radius-md) - 4px);
  background:
    radial-gradient(circle at 50% 24%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 28%),
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 92%, transparent), color-mix(in srgb, var(--surface-strong) 88%, transparent));
}

.product-card__visual img {
  width: 100%;
  height: 100%;
  max-height: 16rem;
  object-fit: contain;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.24));
}

.product-card__meta {
  margin-top: 0.35rem;
  margin-bottom: 0;
}

.product-card__amount {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin: -0.1rem 0 0;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--text-50);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, white 12%, transparent),
    0 14px 32px color-mix(in srgb, var(--accent) 18%, transparent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.45rem;
}

.product-card__footer strong {
  color: color-mix(in srgb, var(--accent-warm) 36%, var(--text-main) 64%);
  font-size: 1.05rem;
}

.product-card__footer a {
  color: var(--accent-700);
  font-weight: 700;
}

.product-card__footer a:hover,
.product-card__footer a:focus-visible {
  color: color-mix(in srgb, var(--accent-warm) 54%, var(--accent-700) 46%);
}

.differentiation__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.pillar-list {
  display: grid;
  gap: 1rem;
}

.pillar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.15rem;
  padding: 1.5rem 0 1.5rem;
  border-top: 1px solid var(--border-soft);
}

.pillar:last-child {
  border-bottom: 1px solid var(--border-soft);
}

.pillar__number {
  color: var(--text-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.24em;
}

.science {
  overflow: clip;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 98%, transparent), color-mix(in srgb, var(--page-bg-strong) 94%, var(--surface-strong) 6%));
}

.science__network {
  opacity: 0.48;
  color: color-mix(in srgb, var(--accent) 26%, var(--accent-warm) 12%);
}

.science__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.science .section-heading h2,
.science .section-heading p,
.science .eyebrow {
  color: var(--science-heading);
}

.science .section-heading p {
  color: var(--science-body);
}

.science .eyebrow {
  color: var(--science-eyebrow);
}

.science .label {
  color: var(--science-panel-label);
}

.science-panel {
  position: relative;
  min-height: 26rem;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--accent) 14%, var(--border-soft) 86%);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg-strong) 94%, transparent), color-mix(in srgb, var(--page-bg) 88%, transparent)),
    color-mix(in srgb, var(--surface-strong) 22%, transparent);
  overflow: hidden;
  box-shadow: var(--shadow-float);
}

.science-panel::before {
  content: "";
  position: absolute;
  inset: 1.35rem;
  border-radius: calc(var(--radius-lg) - 18px);
  border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
  opacity: 0.35;
}

.science-panel__glass {
  position: absolute;
  inset: 12% auto 12% 10%;
  width: 44%;
  border-radius: 2rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, white 14%, transparent), color-mix(in srgb, var(--accent) 5%, transparent)),
    color-mix(in srgb, var(--surface-strong) 34%, transparent);
  border: 1px solid color-mix(in srgb, white 10%, transparent);
  backdrop-filter: blur(12px);
  transform: rotate(-10deg);
  box-shadow:
    inset 0 0 40px color-mix(in srgb, white 6%, transparent),
    0 30px 80px rgba(0, 0, 0, 0.3);
}

.science-panel__glass::before,
.science-panel__glass::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
}

.science-panel__glass::before {
  inset: 18% 16% auto;
  height: 2px;
}

.science-panel__glass::after {
  inset: auto 18% 18% 18%;
  height: 1px;
}

.science-panel__content {
  position: absolute;
  right: 9%;
  top: 50%;
  display: grid;
  gap: 1.35rem;
  width: min(23rem, 44%);
  transform: translateY(-50%);
}

.science-stat {
  padding-bottom: 1.2rem;
  border-bottom: 1px solid color-mix(in srgb, var(--text-700) 10%, transparent);
}

.science-stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.science-stat strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--science-panel-value);
}

.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-list details {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  padding: 1.2rem 1.35rem;
  box-shadow: var(--shadow-soft);
}

.faq-list summary {
  list-style: none;
  cursor: pointer;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-950);
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list details p {
  margin-top: 0.9rem;
}

/* ── Newsletter popup ──────────────────────────────────────────────────── */

.nl-popup {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.nl-popup.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.nl-popup__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.nl-popup__card {
  position: relative;
  width: min(420px, calc(100vw - 2rem));
  padding: 2.5rem 2rem 2rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-float);
  text-align: center;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.35s ease;
}

.nl-popup.is-visible .nl-popup__card {
  transform: translateY(0) scale(1);
}

.nl-popup__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nl-popup__close:hover {
  background: color-mix(in srgb, var(--text-main) 10%, transparent);
  color: var(--text-main);
}

.nl-popup__badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-50);
  background: linear-gradient(135deg, var(--accent-warm), color-mix(in srgb, var(--accent-warm) 80%, var(--accent)));
  box-shadow: 0 4px 18px color-mix(in srgb, var(--accent-warm) 30%, transparent);
  margin-bottom: 1rem;
}

.nl-popup__heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 0.5rem;
}

.nl-popup__body {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0 0 1.5rem;
}

.nl-popup__body strong {
  color: var(--accent);
}

.nl-popup__form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nl-popup__input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
  background: var(--page-bg);
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.nl-popup__input:focus {
  border-color: var(--accent);
}

.nl-popup__input::placeholder {
  color: var(--text-soft);
}

.nl-popup__btn {
  width: 100%;
  padding: 0.85rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-50);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 86%, white 14%), color-mix(in srgb, var(--primary-500) 80%, white 20%));
  box-shadow: 0 8px 28px color-mix(in srgb, var(--accent) 22%, transparent);
  transition: box-shadow 0.2s, transform 0.15s;
}

.nl-popup__btn:hover {
  box-shadow: 0 12px 36px color-mix(in srgb, var(--accent) 30%, transparent);
  transform: translateY(-1px);
}

.nl-popup__btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.nl-popup__note {
  font-size: 0.78rem;
  color: var(--text-soft);
  margin: 0.75rem 0 0;
}

.nl-popup__success {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  padding: 1rem 0;
}

.final-cta__inner {
  text-align: center;
  padding: 4rem 2rem;
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 60%),
    color-mix(in srgb, var(--background-100) 80%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 14%, var(--border-soft) 86%);
}

.final-cta__inner h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  color: var(--text-900);
}

.final-cta__inner p {
  margin: 0 0 1.5rem;
  color: var(--text-600);
  max-width: 36rem;
  margin-inline: auto;
}

.site-footer {
  position: relative;
  overflow: clip;
  padding: 5.8rem 0 3rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 98%, transparent), var(--page-bg) 100%);
}

.site-footer__network {
  inset: 0 0 auto;
  height: 14rem;
  opacity: 0.28;
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(2rem, 6vw, 6rem);
}

.site-footer__brand {
  max-width: 32rem;
}

.site-footer__brand p {
  margin-top: 1.3rem;
}

.newsletter {
  margin-top: 2rem;
}

.newsletter label {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--text-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.newsletter__row {
  display: flex;
  gap: 0.8rem;
}

.newsletter input {
  flex: 1;
  min-height: 3.35rem;
  padding: 0 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--surface-strong) 42%, transparent);
  color: var(--text-950);
}

.newsletter input::placeholder {
  color: var(--text-soft);
}

.site-footer__links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}

.site-footer__links div {
  display: grid;
  align-content: start;
  gap: 0.8rem;
}

.catalog-page__main,
.product-page__main {
  min-height: calc(100vh - var(--header-height));
}

.catalog-hero,
.product-page__hero {
  position: relative;
  overflow: clip;
  padding: clamp(4.8rem, 9vw, 8rem) 0 clamp(3.8rem, 7vw, 6rem);
  background:
    radial-gradient(circle at 78% 22%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 26%),
    radial-gradient(circle at 18% 18%, color-mix(in srgb, var(--accent-warm) 10%, transparent), transparent 22%),
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg-strong) 94%, transparent), var(--page-bg) 100%);
}

.catalog-hero__mesh,
.product-page__glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.catalog-hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.52;
  filter: saturate(1.04) contrast(1.06) brightness(0.62);
}

.catalog-hero__mesh {
  background:
    radial-gradient(circle at 72% 32%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 18%),
    linear-gradient(120deg, transparent 0%, color-mix(in srgb, var(--accent-warm) 6%, transparent) 42%, transparent 58%);
  opacity: 0.8;
}

body.categories-page .catalog-hero {
  min-height: clamp(32rem, 74vh, 44rem);
  display: grid;
  align-items: center;
  background:
    linear-gradient(180deg, rgba(11, 15, 20, 0.18), rgba(11, 15, 20, 0.7)),
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg-strong) 76%, transparent), color-mix(in srgb, var(--page-bg) 90%, transparent));
}

body.categories-page .catalog-hero__mesh {
  background:
    radial-gradient(circle at 76% 24%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 18%),
    radial-gradient(circle at 18% 20%, color-mix(in srgb, var(--accent-warm) 14%, transparent), transparent 22%),
    linear-gradient(135deg, rgba(11, 15, 20, 0.08), rgba(11, 15, 20, 0.42));
  opacity: 1;
}

body.categories-page .catalog-hero__layout {
  grid-template-columns: 1fr;
}

body.categories-page .catalog-hero__copy {
  max-width: 44rem;
}

.catalog-hero__layout,
.product-page__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 28rem);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

body.product-page .product-page__layout {
  grid-template-columns: minmax(0, 1fr) minmax(360px, 34rem);
}

.catalog-hero__copy,
.product-page__copy {
  max-width: 40rem;
}

.catalog-hero h1,
.product-page__copy h1 {
  margin: 0;
  font-size: clamp(2.9rem, 6vw, 5.8rem);
  letter-spacing: -0.04em;
  line-height: 0.94;
  color: var(--text-950);
}

.catalog-hero__lede,
.product-page__lede,
.catalog-card__summary,
.catalog-empty p,
.product-page__breadcrumb,
.product-page__support span,
.product-page__highlights li,
.product-fact strong {
  color: var(--text-muted);
  line-height: 1.7;
}

.catalog-hero__search {
  display: grid;
  gap: 1rem;
}

.catalog-search-shell {
  display: grid;
  gap: 0.7rem;
  padding: 1.15rem;
  border-radius: calc(var(--radius-md) + 4px);
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border-soft) 82%);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 92%, transparent), color-mix(in srgb, var(--page-bg) 88%, transparent));
  box-shadow: var(--shadow-soft);
}

.catalog-search-shell__input {
  width: 100%;
  min-height: 3.6rem;
  padding: 0 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 1.1rem;
  background: color-mix(in srgb, var(--page-bg) 78%, transparent);
  color: var(--text-main);
}

.catalog-search-shell__input::placeholder {
  color: var(--text-soft);
}

.catalog-hero__stats,
.product-page__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.catalog-hero__stats > div,
.product-page__meta > * {
  min-width: 8rem;
}

.catalog-hero__stats strong,
.product-page__price,
.product-fact strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-main);
}

.catalog-category-grid,
.catalog-browser__grid,
.product-page__facts,
.related-grid {
  display: grid;
  gap: 1.2rem;
}

.catalog-category-grid {
  grid-template-columns: repeat(var(--catalog-category-columns, 3), minmax(0, 1fr));
}

.catalog-category-card {
  text-align: left;
  padding: 1.4rem;
  border-radius: calc(var(--radius-md) + 2px);
  border: 1px solid var(--border-soft);
  background:
    radial-gradient(circle at 86% 16%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 22%),
    linear-gradient(135deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-strong) 88%, transparent));
  box-shadow: var(--shadow-soft);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.catalog-category-card:hover,
.catalog-category-card:focus-visible {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border-soft) 70%);
  box-shadow: 0 28px 64px rgba(0, 0, 0, 0.26);
}

.catalog-category-card.is-active {
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border-soft) 66%);
  box-shadow: 0 28px 64px rgba(0, 0, 0, 0.26);
  background:
    radial-gradient(circle at 86% 16%, color-mix(in srgb, var(--accent-warm) 9%, transparent), transparent 22%),
    linear-gradient(135deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-strong) 88%, transparent));
}

.catalog-category-card__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 2.8rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-warm) 26%, transparent);
  color: color-mix(in srgb, var(--accent-warm) 88%, var(--text-800) 12%);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.catalog-category-card h3,
.catalog-empty h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
  color: var(--text-main);
}

.catalog-category-card p,
.catalog-results,
.catalog-card__summary {
  margin: 0;
}

.catalog-category-card__support {
  display: inline-flex;
  margin-top: 1rem;
  color: color-mix(in srgb, var(--accent-warm) 64%, var(--text-800) 36%);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

body.categories-page .catalog-category-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-height: 2.8rem;
  padding: 0 1rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-strong) 58%, transparent);
  box-shadow: none;
}

body.categories-page .catalog-category-card__index {
  display: none;
}

body.categories-page .catalog-category-card h3 {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

body.categories-page .catalog-category-card p {
  display: none;
}

body.categories-page .catalog-category-card__support {
  display: none;
}

body.categories-page .catalog-category-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

body.categories-page .categories-search {
  max-width: 40rem;
  margin-top: 1.1rem;
}

body.categories-page #categories-index {
  padding-bottom: 2.5rem;
}

body.categories-page #category-products {
  padding-top: 2.5rem;
}

body.categories-page .catalog-category-card:hover,
body.categories-page .catalog-category-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
}

body.categories-page .catalog-category-card.is-active {
  background: color-mix(in srgb, var(--accent) 12%, var(--surface-strong) 88%);
  border-color: color-mix(in srgb, var(--accent) 36%, var(--border-soft) 64%);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
}

body.categories-page .catalog-category-card.is-active h3 {
  color: color-mix(in srgb, var(--accent) 72%, var(--text-main) 28%);
}

.catalog-results-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--border-soft);
}

.catalog-results-bar h3 {
  margin: 0.28rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-main);
}

body.categories-page .catalog-results-bar .catalog-results {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.category-products__shell {
  display: grid;
  gap: 1.4rem;
}

.category-products__hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  gap: 1.2rem;
  align-items: start;
}

.category-products__lead,
.category-products__meta {
  padding: 1.45rem;
  border-radius: calc(var(--radius-md) + 2px);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
}

.category-products__lead {
  background:
    radial-gradient(circle at 86% 18%, color-mix(in srgb, var(--accent-warm) 10%, transparent), transparent 24%),
    linear-gradient(135deg, color-mix(in srgb, var(--surface) 97%, transparent), color-mix(in srgb, var(--page-bg-elevated) 92%, transparent));
}

.category-products__meta {
  background:
    radial-gradient(circle at 82% 14%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 22%),
    linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 94%, transparent), color-mix(in srgb, var(--page-bg) 90%, transparent));
}

.category-products__lead h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: var(--text-main);
}

.category-products__lead p,
.category-products__meta-copy {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.72;
}

.category-products__meta-top {
  display: grid;
  gap: 1rem;
}

.category-products__count {
  display: inline-flex;
  margin-bottom: 0.65rem;
  color: color-mix(in srgb, var(--accent-warm) 72%, var(--text-main) 28%);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.category-products__notes {
  display: grid;
  gap: 0.72rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}

.category-products__notes li {
  position: relative;
  padding-left: 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.category-products__notes li::before {
  content: "";
  position: absolute;
  top: 0.7rem;
  left: 0;
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-warm) 86%, white 14%);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent-warm) 10%, transparent);
}

body.categories-page #category-products .catalog-browser__grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.categories-page #category-products .catalog-card {
  min-height: 100%;
}

body.categories-page #category-products .catalog-card__visual {
  min-height: 21.5rem;
  padding: 0.35rem;
}

body.categories-page #category-products .catalog-card__visual img {
  max-height: 19.75rem;
  transform: scale(1.08);
  transform-origin: center;
}

.catalog-toolbar {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.catalog-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.catalog-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0 1rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--surface-strong) 44%, transparent);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    background-color 180ms ease;
}

.catalog-chip:hover,
.catalog-chip:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 34%, transparent);
}

.catalog-chip.is-active {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 86%, white 14%), color-mix(in srgb, var(--primary-500) 80%, white 20%));
  color: var(--text-50);
  border-color: transparent;
}

.catalog-browser__grid,
.related-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.catalog-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.4rem;
  border-radius: calc(var(--radius-md) + 2px);
  border: 1px solid var(--border-soft);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--page-bg-elevated) 90%, transparent));
  box-shadow: var(--shadow-soft);
  transition:
    transform 200ms ease,
    border-color 200ms ease,
    box-shadow 200ms ease;
}

.catalog-card:hover,
.catalog-card:focus-visible {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border-soft) 70%);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.28);
}

.catalog-card__visual {
  display: grid;
  place-items: center;
  min-height: 18rem;
  padding: 1rem;
  border-radius: calc(var(--radius-md) - 4px);
  background:
    radial-gradient(circle at 50% 24%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 28%),
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 92%, transparent), color-mix(in srgb, var(--surface-strong) 88%, transparent));
}

.catalog-card__visual img,
.product-page__frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.24));
}

.catalog-card__visual img {
  max-height: 16rem;
}

.catalog-card h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--text-main);
}

.catalog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: auto;
}

.catalog-card__footer strong {
  color: var(--text-main);
  font-size: 1.02rem;
}

.catalog-empty {
  padding: 2rem;
  border-radius: calc(var(--radius-md) + 2px);
  border: 1px dashed color-mix(in srgb, var(--accent) 28%, var(--border-soft) 72%);
  background: color-mix(in srgb, var(--surface-strong) 40%, transparent);
}

.product-page__hero {
  padding-bottom: clamp(4rem, 7vw, 6rem);
}

.product-page__glow {
  background:
    radial-gradient(circle at 74% 34%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 24%),
    radial-gradient(circle at 24% 18%, color-mix(in srgb, var(--accent-warm) 12%, transparent), transparent 20%);
  opacity: 0.95;
}

.product-page__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0 0 1.3rem;
  font-size: 0.85rem;
}

.product-page__breadcrumb a {
  color: var(--text-soft);
}

.product-page__breadcrumb strong {
  color: var(--text-main);
}

.product-page__qty-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.product-page__qty {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.qty-btn {
  background: var(--surface);
  border: none;
  color: var(--text-main);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.5rem 1rem;
  transition: background 0.15s, color 0.15s;
}

.qty-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.qty-value {
  background: var(--surface);
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 600;
  min-width: 2.5rem;
  padding: 0.5rem 0.25rem;
  text-align: center;
  user-select: none;
}

.product-page__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.25rem;
}

.product-page__price {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.04em;
}

/* ── Buy box (premium redesign) ─────────────────────────── */
.buy-box {
  margin-top: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.buy-box__price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.buy-box__price {
  font-size: clamp(2.4rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--text-main);
  line-height: 1;
}

.buy-box__amount-badge {
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.buy-box__sep {
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.25;
}

.buy-box__qty-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.buy-box__qty-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.buy-box__stepper {
  display: flex;
  align-items: stretch;
  background: var(--page-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.buy-box__step-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.25rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.buy-box__step-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.buy-box__step-count {
  min-width: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-main);
  user-select: none;
  border-left: 1px solid var(--border-soft);
  border-right: 1px solid var(--border-soft);
}

.buy-box__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  padding: 1rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: #000;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, #0ea5e9));
  box-shadow: 0 2px 20px color-mix(in srgb, var(--accent) 30%, transparent);
  transition: filter 0.2s, box-shadow 0.2s, transform 0.15s;
  -webkit-appearance: none;
}
.buy-box__cta:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
  filter: none;
}

.buy-box__cta:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 30px color-mix(in srgb, var(--accent) 45%, transparent);
  transform: translateY(-1px);
}

.buy-box__cta:active {
  transform: translateY(0);
}

.buy-box__cta svg,
.buy-box__trust-item svg {
  flex-shrink: 0;
  overflow: visible;
}

.buy-box__trust {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem;
  background: color-mix(in srgb, var(--accent) 5%, transparent);
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--accent) 12%, transparent);
}

.buy-box__trust-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  flex: 1;
  justify-content: center;
}

.buy-box__trust-item svg {
  width: 12px;
  height: 12px;
  color: var(--accent);
  flex-shrink: 0;
}

.buy-box__back {
  display: block;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
  padding-top: 0.1rem;
}

.buy-box__back:hover {
  color: var(--accent);
}

.product-page__variants {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.product-page__variant-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.product-page__variant {
  display: grid;
  gap: 0.2rem;
  min-width: 8rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  border: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--surface-strong) 42%, transparent);
  color: var(--text-soft);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.product-page__variant:hover,
.product-page__variant:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--border-soft) 68%);
}

.product-page__variant span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.product-page__variant strong {
  color: var(--text-main);
  font-size: 1rem;
}

.product-page__variant.is-active {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border-soft) 62%);
  background:
    radial-gradient(circle at 84% 18%, color-mix(in srgb, var(--accent-warm) 11%, transparent), transparent 22%),
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-strong) 86%, transparent));
}

.product-page__support {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.product-page__support span {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0 0.8rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-warm) 18%, transparent);
  background: color-mix(in srgb, var(--surface-strong) 42%, transparent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.product-page__highlights {
  display: grid;
  gap: 0.65rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.product-page__highlights li {
  position: relative;
  padding-left: 1rem;
}

.product-page__highlights li::before {
  content: "";
  position: absolute;
  top: 0.72rem;
  left: 0;
  width: 0.36rem;
  height: 0.36rem;
  border-radius: 999px;
  background: var(--accent-warm);
}

.product-page__visual {
  display: grid;
  place-items: center;
}

.product-page__frame {
  width: min(100%, 34rem);
  aspect-ratio: 0.86;
  padding: 1rem;
  border-radius: calc(var(--radius-lg) + 2px);
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border-soft) 82%);
  background:
    radial-gradient(circle at 50% 28%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 26%),
    linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 94%, transparent), color-mix(in srgb, var(--page-bg) 90%, transparent));
  box-shadow: var(--shadow-float);
}

.product-page__frame img {
  max-height: 35rem;
  transform: scale(1.06);
}

.product-page__facts {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-fact {
  padding: 1.35rem;
  border-radius: calc(var(--radius-md) + 2px);
  border: 1px solid var(--border-soft);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-strong) 88%, transparent));
  box-shadow: var(--shadow-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 720ms ease,
    transform 720ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-drift] {
  transition: transform 220ms linear;
  will-change: transform;
}

@media (max-width: 1100px) {
  .site-header__inner,
  .hero__inner,
  .differentiation__layout,
  .science__layout,
  .site-footer__inner,
  .catalog-hero__layout,
  .product-page__layout,
  .category-products__hero {
    grid-template-columns: 1fr;
  }

  body.product-page .product-page__layout {
    grid-template-columns: 1fr;
  }

  .site-header__inner {
    grid-template-columns: 1fr auto;
    padding: 1rem 0;
  }

  .main-nav {
    order: 3;
    justify-content: flex-start;
    flex-wrap: wrap;
    grid-column: 1 / -1;
  }

  .header-actions {
    justify-content: end;
    align-self: center;
  }

  .hero {
    min-height: 40rem;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero-video-stage {
    width: min(100%, 36rem);
  }

  .hero__specs,
  .science-panel__content {
    position: static;
    width: 100%;
    transform: none;
  }

  .science-panel {
    padding: 2rem;
    min-height: auto;
  }

  .science-panel__glass {
    position: relative;
    inset: 0;
    width: min(16rem, 70%);
    aspect-ratio: 0.78;
    margin-bottom: 2rem;
    transform: rotate(-7deg);
  }

  .standards-grid,
  .product-grid,
  .catalog-category-grid,
  .catalog-browser__grid,
  .related-grid,
  .product-page__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.categories-page #category-products .catalog-browser__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.categories-page #category-products .catalog-card__visual {
    min-height: 19rem;
  }

  body.categories-page #category-products .catalog-card__visual img {
    max-height: 17.75rem;
  }
}

@media (max-width: 760px) {
  :root {
    --container: min(100vw - 1.2rem, 100vw - 1.2rem);
    --header-height: 74px;
  }

  .utility-bar__inner {
    gap: 0.9rem;
    font-size: 0.64rem;
    letter-spacing: 0.14em;
  }

  .utility-bar__inner p + p::before {
    left: -0.5rem;
  }

  .site-header__inner {
    gap: 1rem;
  }

  .brand strong {
    letter-spacing: 0.24em;
  }

  .main-nav {
    display: none;
    gap: 0;
    font-size: 0.92rem;
    flex-direction: column;
    align-items: flex-start;
    padding: 0.5rem 0 0.75rem;
    border-top: 1px solid var(--border-soft);
    margin-top: 0.25rem;
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 0.55rem 0;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .header-actions {
    justify-content: end;
  }

  .hero__inner {
    padding-top: 3.6rem;
    padding-bottom: 3.8rem;
  }

  .hero {
    min-height: 35.5rem;
  }

  .hero__copy {
    max-width: none;
  }

  .hero h1 {
    max-width: 11ch;
  }

  .hero__actions,
  .section-actions,
  .product-page__actions,
  .newsletter__row {
    flex-direction: column;
  }

  .button,
  .newsletter input {
    width: 100%;
  }

  .hero__visual {
    min-height: 30rem;
  }

  .hero__backdrop {
    background:
      linear-gradient(180deg, color-mix(in srgb, #071112 42%, transparent) 0%, color-mix(in srgb, #071112 66%, transparent) 100%),
      linear-gradient(90deg, color-mix(in srgb, #071112 74%, transparent) 0%, color-mix(in srgb, #071112 24%, transparent) 58%, color-mix(in srgb, #071112 36%, transparent) 100%);
  }

  .hero__inner {
    gap: 1.75rem;
  }

  .hero-video-stage {
    width: min(100%, 23rem);
    aspect-ratio: 0.92;
  }

  .hero-video-shell {
    padding: 0.8rem;
    border-radius: 1.9rem;
  }

  .hero-video-shell__chrome {
    gap: 0.55rem;
    padding: 0.12rem 0.15rem 0.75rem;
    font-size: 0.58rem;
    letter-spacing: 0.14em;
  }

  .hero-video-shell__viewport {
    height: calc(100% - 1.95rem);
    border-radius: 1.35rem;
  }

  .hero-video-shell__hint {
    left: 0.8rem;
    bottom: 0.8rem;
    padding: 0.5rem 0.65rem;
    font-size: 0.58rem;
    letter-spacing: 0.14em;
  }

  .vial-cluster {
    height: 26rem;
  }

  .vial-card--feature {
    inset: 0.35rem 2rem 2.2rem 2rem;
  }

  .vial-card--small {
    width: 8.6rem;
    height: 11.8rem;
  }

  .vial-card--left {
    left: 0;
    bottom: 4rem;
  }

  .vial-card--right {
    right: 0;
    top: 2.1rem;
  }

  .vial {
    width: 6rem;
    height: 11rem;
  }

  .vial--feature {
    width: 10rem;
    height: 17rem;
  }

  .hero__specs {
    margin-top: 1.2rem;
  }

  .section-heading {
    margin-bottom: 2rem;
  }

  .standards-grid,
  .category-grid,
  .product-grid,
  .catalog-category-grid,
  .catalog-browser__grid,
  .related-grid,
  .product-page__facts,
  .site-footer__links {
    grid-template-columns: 1fr;
  }

  body.categories-page #category-products .catalog-browser__grid {
    grid-template-columns: 1fr;
  }

  body.categories-page #category-products .catalog-card__visual {
    min-height: 17.5rem;
  }

  body.categories-page #category-products .catalog-card__visual img {
    max-height: 16.5rem;
  }

  .catalog-search-shell,
  .product-page__frame {
    padding: 1rem;
  }

  .catalog-hero__stats,
  .product-page__meta {
    gap: 0.75rem;
  }

  .catalog-hero__stats > div,
  .product-page__meta > * {
    flex: 1 1 calc(50% - 0.4rem);
    min-width: 0;
  }

  .category-panel {
    min-height: 13rem;
  }

  .science-panel {
    padding: 1.35rem;
  }

  .science-panel__glass {
    width: 11rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ── Cart drawer ──────────────────────────────────────────── */
.ps-cart-drawer {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
}
.ps-cart-drawer.is-open {
  pointer-events: auto;
}
.ps-cart-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  transition: opacity 0.28s ease;
}
.ps-cart-drawer.is-open .ps-cart-drawer__backdrop {
  opacity: 1;
}
.ps-cart-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(400px, 100vw);
  height: 100%;
  background: var(--surface);
  border-left: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s ease;
  overflow: hidden;
}
.ps-cart-drawer.is-open .ps-cart-drawer__panel {
  transform: translateX(0);
}
.ps-cart-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
}
.ps-cart-drawer__title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-main);
}
.ps-cart-drawer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.ps-cart-drawer__close:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.ps-cart-drawer__items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.ps-cart-drawer__empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-soft);
  font-size: 0.9rem;
}
.ps-cart-item {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 0.85rem;
  align-items: start;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-soft);
}
.ps-cart-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.ps-cart-item__img {
  width: 68px;
  height: 68px;
  border-radius: 10px;
  object-fit: contain;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  padding: 6px;
  display: block;
}
.ps-cart-item__img-placeholder {
  width: 68px;
  height: 68px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
}
.ps-cart-item__info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.ps-cart-item__name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
}
.ps-cart-item__price {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}
.ps-cart-item__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.35rem;
}
.ps-cart-item__qty {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  overflow: hidden;
}
.ps-cart-item__qty-btn {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.ps-cart-item__qty-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.ps-cart-item__qty-btn:disabled {
  opacity: 0.4;
  cursor: wait;
}
.ps-cart-item__qty-val {
  width: 28px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main);
  border-left: 1px solid var(--border-soft);
  border-right: 1px solid var(--border-soft);
  line-height: 30px;
}
.ps-cart-item__remove {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.ps-cart-item__remove:hover {
  background: color-mix(in srgb, var(--secondary-500) 12%, transparent);
  border-color: color-mix(in srgb, var(--secondary-500) 30%, transparent);
  color: var(--secondary-500);
}
.ps-cart-item__remove:disabled {
  opacity: 0.4;
  cursor: wait;
}
.ps-cart-drawer__footer {
  border-top: 1px solid var(--border-soft);
  padding: 1.25rem;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.ps-cart-drawer__subtotal {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.ps-cart-drawer__subtotal-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}
.ps-cart-drawer__subtotal-value {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-main);
}
.ps-cart-drawer__actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.ps-cart-drawer__btn-checkout {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, #0ea5e9));
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 12px color-mix(in srgb, var(--accent) 28%, transparent);
  transition: filter 0.2s, transform 0.15s;
}
.ps-cart-drawer__btn-checkout:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  color: #000;
}
.ps-cart-drawer__btn-cart {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid var(--border-soft);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.ps-cart-drawer__btn-cart:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Added-to-cart toast ──────────────────────────────────── */
.ps-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem 0.65rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}
.ps-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.ps-toast__icon {
  color: var(--accent);
  flex-shrink: 0;
}
.ps-toast__text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}
.ps-toast__link {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  padding: 0.28rem 0.6rem;
  border-radius: 6px;
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  transition: background 0.15s;
  white-space: nowrap;
  margin-left: 0.15rem;
}
.ps-toast__link:hover {
  background: var(--accent-soft);
}

/* ── Buy box (product page) ────────────────────────────────────────────── */
.buy-box { margin-top: 1.75rem; background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-md); padding: 1.75rem; display: flex; flex-direction: column; gap: 1.2rem; }
.buy-box__price-row { display: flex; align-items: center; justify-content: space-between; }
.buy-box__price { font-size: clamp(2.4rem, 5vw, 3rem); font-weight: 700; letter-spacing: -.05em; color: var(--text-main); line-height: 1; }
.buy-box__amount-badge { padding: .35rem .85rem; border: 1px solid var(--accent); border-radius: 999px; color: var(--accent); font-size: .75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.buy-box__sep { height: 1px; background: linear-gradient(90deg, var(--accent), transparent); opacity: .25; }
.buy-box__qty-section { display: flex; align-items: center; justify-content: space-between; }
.buy-box__qty-label { font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); }
.buy-box__stepper { display: flex; align-items: stretch; background: var(--page-bg); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); overflow: hidden; }
.buy-box__step-btn { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: transparent; border: none; color: var(--text-main); font-size: 1.25rem; cursor: pointer; transition: background .15s, color .15s; }
.buy-box__step-btn:hover { background: var(--accent-soft); color: var(--accent); }
.buy-box__step-count { min-width: 3rem; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; color: var(--text-main); user-select: none; border-left: 1px solid var(--border-soft); border-right: 1px solid var(--border-soft); }
.buy-box__cta { display: flex; align-items: center; justify-content: center; gap: .55rem; width: 100%; padding: 1rem 1.5rem; border-radius: var(--radius-sm); font-weight: 700; font-size: 1rem; letter-spacing: .01em; text-decoration: none; color: #000; cursor: pointer; background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, #0ea5e9)); box-shadow: 0 2px 20px color-mix(in srgb, var(--accent) 30%, transparent); transition: filter .2s, box-shadow .2s, transform .15s; }
.buy-box__cta:hover { filter: brightness(1.08); box-shadow: 0 6px 30px color-mix(in srgb, var(--accent) 45%, transparent); transform: translateY(-1px); }
.buy-box__cta:active { transform: translateY(0); }
.buy-box__trust { display: flex; justify-content: space-between; gap: .5rem; padding: .75rem; background: color-mix(in srgb, var(--accent) 5%, transparent); border-radius: var(--radius-sm); border: 1px solid color-mix(in srgb, var(--accent) 12%, transparent); }
.buy-box__trust-item { display: flex; align-items: center; gap: .3rem; font-size: .7rem; font-weight: 500; color: var(--text-muted); flex: 1; justify-content: center; }
.buy-box__trust-item svg { flex-shrink: 0; }
.buy-box__back { display: block; text-align: center; font-size: .82rem; color: var(--text-muted); text-decoration: none; transition: color .15s; padding-top: .1rem; }
.buy-box__back:hover { color: var(--accent); }
.product-page__ruo { margin-top: 1rem; font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); text-align: center; }
.buy-box__specs { display: flex; gap: .75rem; font-size: .75rem; font-weight: 500; color: var(--text-muted); }
.buy-box__specs span { display: flex; align-items: center; gap: .35rem; }
.buy-box__specs span::before { content: ""; width: .28rem; height: .28rem; border-radius: 999px; background: var(--accent); flex-shrink: 0; }
.buy-box__microcopy { margin: 0; font-size: .72rem; color: var(--text-muted); line-height: 1.5; }
.buy-box__microcopy a { color: var(--accent); text-decoration: underline; }