:root {
  color-scheme: light;
  --ink: #071522;
  --ink-soft: #29495b;
  --paper: #fffaf1;
  --paper-2: #f5ecdd;
  --surface: #ffffff;
  --card: rgba(255, 255, 255, 0.72);
  --line: rgba(7, 21, 34, 0.13);
  --red: #b51f1e;
  --gold: #d8b45d;
  --sage: #6f8792;
  --blue: #27495c;
  --deep: #071522;
  --header-bg: rgba(255, 250, 241, 0.94);
  --logo-bg: rgba(255, 250, 241, 0.96);
  --footer-bg: #071522;
  --footer-text: rgba(255, 255, 255, 0.72);
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(7, 21, 34, 0.16);
}

body[data-theme="dark"] {
  color-scheme: dark;
  --ink: #fff7ea;
  --ink-soft: #c6d3d8;
  --paper: #071522;
  --paper-2: #102838;
  --surface: #0d2030;
  --card: rgba(15, 38, 54, 0.82);
  --line: rgba(255, 250, 241, 0.14);
  --red: #d1423a;
  --gold: #e1bc67;
  --sage: #8aa3ac;
  --blue: #365e72;
  --deep: #030a10;
  --header-bg: rgba(7, 21, 34, 0.9);
  --logo-bg: rgba(255, 250, 241, 0.95);
  --footer-bg: #030a10;
  --footer-text: rgba(255, 250, 241, 0.72);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Manrope", Arial, sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
  transition: background 0.28s ease, color 0.28s ease;
}

main,
.site-header,
.footer {
  width: min(100%, 2560px);
  margin-inline: auto;
}

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

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

button,
input {
  font: inherit;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--gold), var(--sage));
  box-shadow: 0 0 22px rgba(214, 173, 85, 0.55);
}

.scroll-glow {
  position: fixed;
  right: -120px;
  top: 22vh;
  z-index: 1;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(214, 173, 85, 0.2), rgba(181, 32, 31, 0.1) 42%, transparent 70%);
  filter: blur(8px);
  opacity: 0.8;
  pointer-events: none;
  transform: translate3d(0, 0, 0);
  transition: opacity 0.25s ease;
}

body.is-jumping .scroll-glow {
  opacity: 1;
  background: radial-gradient(circle, rgba(214, 173, 85, 0.34), rgba(181, 32, 31, 0.16) 42%, transparent 72%);
}

body.is-jumping .scroll-progress {
  height: 4px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 72px);
  color: var(--white);
  transition: background 0.25s ease, box-shadow 0.25s ease, color 0.25s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: var(--header-bg);
  color: var(--ink);
  box-shadow: 0 14px 45px rgba(7, 21, 34, 0.09);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  min-width: 0;
}

.brand img {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: contain;
  background: var(--logo-bg);
  border: 2px solid rgba(255, 255, 255, 0.78);
  box-shadow: 0 10px 28px rgba(7, 21, 34, 0.22);
}

.site-header.is-scrolled .brand img,
.site-header.is-open .brand img {
  border-color: rgba(7, 21, 34, 0.14);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 36px);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  opacity: 0.92;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--gold);
  content: "";
  transition: width 0.2s ease;
}

.site-nav a:hover::after {
  width: 100%;
}

.site-nav a.is-active {
  color: var(--gold);
}

.site-nav a.is-active::after {
  width: 100%;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.09);
  color: currentColor;
  cursor: pointer;
  backdrop-filter: blur(14px);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.site-header.is-scrolled .theme-toggle,
.site-header.is-open .theme-toggle {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface) 76%, transparent);
}

.theme-toggle:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 8px;
  background: transparent;
  color: inherit;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  padding: 130px clamp(18px, 6vw, 112px) 46px;
  overflow: clip;
  color: var(--white);
}

.scroll-section {
  position: relative;
  isolation: isolate;
}

.scroll-section::after {
  position: absolute;
  left: clamp(18px, 6vw, 112px);
  right: clamp(18px, 6vw, 112px);
  bottom: 0;
  z-index: 3;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(214, 173, 85, 0.42), transparent);
  content: "";
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.8s cubic-bezier(0.2, 0.82, 0.2, 1);
}

.scroll-section.is-current::after {
  transform: scaleX(1);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background: var(--deep);
  transform: scale(1.05);
  transition: transform 0.2s linear;
  will-change: transform;
}

.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.08) contrast(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 21, 34, 0.93) 0%, rgba(7, 21, 34, 0.68) 44%, rgba(7, 21, 34, 0.14) 100%),
    linear-gradient(0deg, rgba(7, 21, 34, 0.72), rgba(7, 21, 34, 0) 46%),
    radial-gradient(circle at 18% 75%, rgba(181, 32, 31, 0.42), transparent 28%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 810px;
  padding-bottom: 70px;
  animation: heroRise 0.95s cubic-bezier(0.2, 0.82, 0.2, 1) both;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Playfair Display", Georgia, serif;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(4.5rem, 15vw, 11.6rem);
  line-height: 0.82;
}

.hero-copy {
  max-width: 660px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.65;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 0.2s ease, background 0.2s ease, border 0.2s ease;
}

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

.button svg {
  width: 20px;
  height: 20px;
}

.button.primary {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 16px 35px rgba(181, 32, 31, 0.28);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.38);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
}

.button.dark {
  background: var(--deep);
  color: var(--white);
}

.hero-panel {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(760px, 100%);
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  overflow: hidden;
  backdrop-filter: blur(18px);
  animation: panelRise 0.9s 0.18s cubic-bezier(0.2, 0.82, 0.2, 1) both;
}

.hero-panel div {
  padding: 20px;
  background: rgba(7, 21, 34, 0.28);
}

.hero-panel strong,
.hero-panel span {
  display: block;
}

.hero-panel strong {
  font-size: clamp(1.45rem, 3vw, 2.4rem);
  line-height: 1;
}

.hero-panel span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.9rem;
}

.hero-panel strong span {
  display: inline;
  margin: 0;
  color: inherit;
  font-size: inherit;
  line-height: inherit;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.trust-strip div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 82px;
  padding: 16px;
  border-right: 1px solid var(--line);
  color: var(--ink-soft);
  font-weight: 800;
  text-align: center;
}

.trust-strip div:last-child {
  border-right: 0;
}

.trust-strip svg {
  flex: 0 0 auto;
  color: var(--red);
}

.section {
  padding: clamp(72px, 10vw, 150px) clamp(18px, 6vw, 112px);
  transform: translateZ(0);
  transition: filter 0.45s ease, opacity 0.45s ease;
}

.section-heading {
  max-width: 850px;
}

.section-heading h2,
.usage-card h2,
.process-copy h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(2.2rem, 5vw, 5rem);
  line-height: 0.98;
}

.intro {
  background: var(--paper);
}

.intro::before,
.catalog::before,
.process::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(120deg, transparent 0 55%, rgba(214, 173, 85, 0.08) 55% 56%, transparent 56% 100%);
  content: "";
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.intro.is-current::before,
.catalog.is-current::before,
.process.is-current::before {
  opacity: 1;
  transform: translateY(0);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
}

.benefit-grid article,
.product-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  box-shadow: 0 16px 45px rgba(7, 21, 34, 0.07);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.benefit-grid article:hover,
.product-card:hover {
  transform: translateY(-7px);
  border-color: rgba(181, 32, 31, 0.2);
  box-shadow: 0 28px 70px rgba(7, 21, 34, 0.14);
}

.benefit-grid article {
  padding: 30px;
}

.benefit-grid svg {
  width: 34px;
  height: 34px;
  color: var(--red);
}

.benefit-grid h3 {
  margin: 22px 0 10px;
  font-size: 1.15rem;
}

.benefit-grid p,
.product-card p,
.usage-card p,
.process-copy p,
.contact p {
  color: var(--ink-soft);
  line-height: 1.72;
}

.catalog {
  background: var(--surface);
  overflow: hidden;
}

.catalog::after {
  position: absolute;
  top: 96px;
  right: clamp(18px, 6vw, 82px);
  z-index: -1;
  width: min(460px, 48vw);
  height: min(460px, 48vw);
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--gold) 22%, transparent), transparent 67%);
  content: "";
  opacity: 0;
  transform: translateY(40px) scale(0.88);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.2, 0.82, 0.2, 1);
}

.catalog.is-current::after {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.catalog-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  align-items: end;
  gap: 30px;
}

.catalog-controls {
  display: grid;
  gap: 14px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--ink-soft);
  font-weight: 800;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.chip:hover {
  transform: translateY(-2px);
}

.chip.active {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: 18px;
  margin-top: 42px;
  perspective: 1100px;
}

.product-card {
  position: relative;
  min-height: 390px;
  padding: 0 22px 22px;
  overflow: hidden;
  transform-origin: center top;
}

.product-card:hover {
  transform: translateY(-9px) rotateX(1.5deg);
}

.product-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 8px;
  background: var(--accent, var(--sage));
  content: "";
  transform: scaleX(0.28);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.product-card:hover::before {
  transform: scaleX(1);
}

.product-photo {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 178px;
  margin: 0 -22px 22px;
  overflow: hidden;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent, var(--sage)) 18%, var(--surface)), color-mix(in srgb, var(--paper) 92%, transparent)),
    var(--paper);
}

.product-photo::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0 35%, rgba(255, 255, 255, 0.3) 45%, transparent 56% 100%);
  content: "";
  transform: translateX(-120%);
  transition: transform 0.8s ease;
}

.product-card:hover .product-photo::before {
  transform: translateX(120%);
}

.product-photo::after {
  position: absolute;
  inset: auto 18px 14px;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent, var(--sage)) 56%, white), transparent);
  content: "";
}

.product-photo img {
  width: min(128px, 48%);
  aspect-ratio: 1;
  object-fit: contain;
  padding: 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 74%, transparent);
  box-shadow: 0 16px 38px rgba(7, 21, 34, 0.12);
  transition: transform 0.28s ease;
}

.product-card:hover .product-photo img {
  transform: scale(1.06) rotate(-2deg);
}

.product-photo figcaption {
  position: absolute;
  right: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border-radius: 8px;
  background: rgba(7, 21, 34, 0.78);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 900;
  backdrop-filter: blur(10px);
}

.product-photo figcaption svg {
  width: 15px;
  height: 15px;
}

.product-card h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0;
}

.product-meta span {
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--paper-2);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 800;
}

.product-card .link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  color: var(--red);
  font-weight: 900;
}

.empty-state {
  grid-column: 1 / -1;
  margin: 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink-soft);
  font-weight: 800;
}

.usage {
  background: linear-gradient(135deg, var(--blue), var(--deep));
  color: var(--white);
  overflow: hidden;
}

.usage::before {
  position: absolute;
  inset: -20% -10%;
  z-index: -1;
  background:
    linear-gradient(115deg, transparent 25%, rgba(214, 173, 85, 0.12) 25% 26%, transparent 26% 55%, rgba(255, 255, 255, 0.07) 55% 56%, transparent 56%);
  content: "";
  transform: translateX(-60px);
  transition: transform 1s cubic-bezier(0.2, 0.82, 0.2, 1);
}

.usage.is-current::before {
  transform: translateX(0);
}

.usage-card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 40px;
  align-items: center;
  max-width: 1160px;
  margin: 0 auto;
}

.usage-card p {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.76);
}

.calculator {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.calculator label {
  display: block;
  margin-bottom: 18px;
  font-weight: 900;
}

.range-line {
  display: flex;
  align-items: center;
  gap: 18px;
}

.range-line input {
  width: 100%;
  accent-color: var(--gold);
}

.range-line strong {
  min-width: 72px;
  text-align: right;
}

.dose-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 26px;
  padding: 20px;
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
}

.dose-result span {
  color: var(--ink-soft);
  font-weight: 800;
}

.dose-result strong {
  color: var(--red);
  font-size: 1.4rem;
}

.process {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1fr);
  gap: clamp(30px, 6vw, 80px);
  align-items: center;
  background: var(--paper);
}

.process-visual {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--surface);
}

.process-visual img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  padding: clamp(24px, 4vw, 54px);
}

.step-list {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.step-list div {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.step-list span {
  color: var(--red);
  font-weight: 900;
}

.step-list p {
  margin: 0;
}

.contact {
  padding: clamp(82px, 12vw, 155px) clamp(18px, 6vw, 112px);
  background:
    linear-gradient(135deg, rgba(7, 21, 34, 1), rgba(39, 73, 92, 0.94) 58%, rgba(181, 32, 31, 0.84)),
    var(--deep);
  color: var(--white);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(34px) scale(0.985);
  filter: blur(8px);
  transition: opacity 0.75s ease, transform 0.75s cubic-bezier(0.2, 0.82, 0.2, 1), filter 0.75s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.benefit-grid article:nth-child(2),
.trust-strip div:nth-child(2) {
  transition-delay: 0.08s;
}

.benefit-grid article:nth-child(3),
.trust-strip div:nth-child(3) {
  transition-delay: 0.16s;
}

.trust-strip div:nth-child(4) {
  transition-delay: 0.24s;
}

.product-card {
  animation: catalogCardIn 0.72s cubic-bezier(0.2, 0.82, 0.2, 1) both;
}

.product-card:nth-child(3n + 2) {
  animation-delay: 0.05s;
}

.product-card:nth-child(3n + 3) {
  animation-delay: 0.1s;
}

@keyframes heroRise {
  from {
    opacity: 0;
    transform: translateY(34px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes panelRise {
  from {
    opacity: 0;
    transform: translateY(26px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes catalogCardIn {
  from {
    opacity: 0;
    transform: translateY(34px) rotateX(-8deg) scale(0.96);
    filter: blur(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0) scale(1);
    filter: blur(0);
  }
}

@supports (animation-timeline: view()) {
  .section-heading h2,
  .process-copy h2,
  .contact h2 {
    animation: headingDrift linear both;
    animation-timeline: view();
    animation-range: entry 5% cover 42%;
  }
}

@keyframes headingDrift {
  from {
    opacity: 0.25;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.7fr);
  gap: clamp(28px, 6vw, 74px);
  align-items: start;
}

.contact-content {
  max-width: 780px;
}

.contact p {
  max-width: 620px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
}

.contact-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.contact-channels a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 900;
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.contact-channels a:hover {
  transform: translateY(-2px);
  border-color: rgba(214, 173, 85, 0.45);
  background: rgba(255, 255, 255, 0.14);
}

.contact-channels svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.09);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.form-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.form-head > svg {
  width: 42px;
  height: 42px;
  padding: 10px;
  border-radius: 8px;
  background: var(--gold);
  color: var(--deep);
}

.form-head strong,
.form-head span {
  display: block;
}

.form-head strong {
  color: var(--white);
  font-size: 1.05rem;
}

.form-head span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.88rem;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.86rem;
  font-weight: 900;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: #071522;
  outline: 0;
}

.contact-form input,
.contact-form select {
  min-height: 46px;
  padding: 0 13px;
}

.contact-form textarea {
  min-height: 112px;
  padding: 13px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(214, 173, 85, 0.18);
}

.contact-form .full {
  width: 100%;
}

.contact-form button.full {
  border: 0;
  cursor: pointer;
}

.contact-form button:disabled {
  cursor: wait;
  opacity: 0.78;
  transform: none;
}

.form-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
  line-height: 1.5;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(18px, 6vw, 112px);
  background: var(--footer-bg);
  color: var(--footer-text);
}

.footer span {
  color: var(--white);
  font-weight: 900;
}

.footer p {
  margin: 0;
}

.developer-credit {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
}

.developer-credit strong {
  color: var(--gold);
}

.developer-credit:hover strong {
  color: var(--white);
}

@media (min-width: 1600px) {
  .hero {
    min-height: 900px;
  }

  .hero-content {
    max-width: 980px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-panel {
    width: min(900px, 100%);
  }

  .section-heading {
    max-width: 1000px;
  }

  .section-heading h2,
  .usage-card h2,
  .process-copy h2,
  .contact h2 {
    max-width: 1080px;
  }

  .catalog-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .contact-layout,
  .usage-card {
    max-width: 1440px;
    margin-inline: auto;
  }
}

@media (min-width: 2200px) {
  .hero {
    min-height: 1040px;
  }

  .catalog-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 1180px) {
  .site-nav {
    gap: 20px;
  }

  .hero-content {
    max-width: 700px;
  }

  .hero-panel {
    width: min(680px, 100%);
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .trust-strip,
  .benefit-grid,
  .catalog-grid,
  .catalog-top,
  .contact-layout,
  .usage-card,
  .process {
    grid-template-columns: 1fr;
  }

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

  .catalog-top {
    align-items: stretch;
  }
}

@media (max-width: 760px) {
  .scroll-glow {
    display: none;
  }

  .site-header {
    padding: 12px 18px;
    gap: 10px;
  }

  .brand span {
    max-width: min(36vw, 170px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
  }

  .theme-toggle {
    position: fixed;
    right: max(16px, env(safe-area-inset-right));
    bottom: max(16px, env(safe-area-inset-bottom));
    z-index: 45;
    width: 42px;
    height: 42px;
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(7, 21, 34, 0.82);
    color: var(--white);
    box-shadow: 0 16px 40px rgba(7, 21, 34, 0.28);
  }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 14px;
  }

  .hero {
    min-height: 100svh;
    padding: 112px 18px 28px;
  }

  .hero-media video {
    object-position: 58% center;
  }

  .hero-content {
    padding-bottom: 36px;
  }

  h1 {
    font-size: clamp(4.2rem, 20vw, 7rem);
  }

  .hero-panel {
    grid-template-columns: 1fr;
  }

  .hero-panel div {
    padding: 16px;
  }

  .trust-strip {
    grid-template-columns: 1fr;
  }

  .trust-strip div {
    justify-content: flex-start;
    text-align: left;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .section {
    padding: 64px 18px;
  }

  .section-heading h2,
  .usage-card h2,
  .process-copy h2,
  .contact h2 {
    font-size: clamp(2.05rem, 11vw, 3.4rem);
  }

  .filter-row {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
  }

  .chip {
    flex: 0 0 auto;
  }

  .range-line,
  .dose-result,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-actions,
  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .contact-form {
    padding: 18px;
  }

  .contact-channels {
    flex-direction: column;
  }

  .contact-channels a {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .brand img {
    width: 46px;
    height: 46px;
  }

  .brand span {
    display: none;
  }

  .theme-toggle,
  .nav-toggle {
    width: 40px;
    height: 40px;
  }

  h1 {
    font-size: clamp(3.65rem, 22vw, 5.2rem);
  }

  .hero-copy {
    font-size: 1rem;
  }

  .product-card {
    min-height: auto;
  }

  .product-photo {
    min-height: 156px;
  }
}

@media (max-height: 720px) and (min-width: 761px) {
  .hero {
    min-height: 720px;
    padding-top: 108px;
  }

  .hero-content {
    padding-bottom: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .hero-media {
    transform: none !important;
  }

  [data-reveal] {
    filter: none !important;
  }
}