:root {
  --primary-blue: #01aaff;
  --primary-blue-dark: #018fd8;
  --text-dark: #000000;
  --text-grey: #545a6c;
  --section-bg: #f3f3ff;
  --white: #ffffff;
  --border-color: rgba(84, 90, 108, 0.16);
  --font-heading: "Poppins", Arial, sans-serif;
  --font-body: "Roboto", Arial, sans-serif;
  --container: 1140px;
  --shadow-soft: 0 20px 48px rgba(10, 32, 66, 0.08);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--section-bg);
  color: var(--text-dark);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.5;
}

body.is-menu-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  background: transparent;
}

.header-inner {
  width: min(1142px, calc(100% - 48px));
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo-link {
  display: inline-flex;
  align-items: center;
}

.logo-link img {
  width: 294px;
  max-width: 100%;
  height: auto;
  max-height: 79px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 35px;
  font-size: 15px;
  line-height: 1;
}

.site-nav a {
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary-blue);
}

.nav-button {
  min-width: 115px;
  min-height: 39px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border: 1px solid var(--primary-blue);
  border-radius: 5px;
  background: var(--primary-blue);
  color: var(--white);
}

.nav-button:hover,
.nav-button:focus-visible {
  background: transparent;
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 6px;
  background: var(--primary-blue);
  padding: 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: #fff;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.product-details-section {
  position: relative;
  overflow: hidden;
  padding: 137px 0 34px;
}

.hero-rings {
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(360px, 39vw, 561px);
  opacity: 0.62;
  pointer-events: none;
}

.product-shell,
.tabs-shell,
.cta-shell {
  position: relative;
}

.product-shell {
  padding: 0;
  border-radius: 0;
  background: none;
  box-shadow: unset;
}

.product-shell::before {
  content: "";
  position: absolute;
  top: 18px;
  right: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(1, 170, 255, 0.08) 0%, rgba(1, 170, 255, 0) 70%);
  pointer-events: none;
}

.product-details-grid {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) minmax(340px, 547px);
  gap: 30px;
  align-items: center;
}

.product-thumbnails {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding-top: 10px;
  position: relative;
  z-index: 1;
}

.gallery-arrow {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 0;
  background: none;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.gallery-arrow img {
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.gallery-arrow:hover {
  color: var(--primary-blue);
  border-color: rgba(1, 170, 255, 0.3);
  transform: translateY(-1px);
}

.thumbnail-button {
  position: relative;
  width: 96px;
  height: 105px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.thumbnail-button img {
  width: 102px;
  height: 102px;
  object-fit: contain;
  border-radius: 20px;
}

.thumbnail-button:hover,
.thumbnail-button.is-active {
  border-color: var(--primary-blue);
  transform: translateY(-1px);
}

.thumbnail-video img {
  object-fit: cover;
  border-radius: 14px;
}

.play-badge {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 34px;
  height: 24px;
  border-radius: 9px;
  background: #ff3030;
  transform: translate(-50%, -50%);
}

.play-badge::before {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 10px solid #ffffff;
  transform: translate(-35%, -50%);
}

.main-image-card {
  position: relative;
  width: 445px;
  max-width: 100%;
  min-height: 429px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  border-radius: 32px;
  background: var(--white);
  box-shadow: 0 24px 54px rgba(10, 32, 66, 0.08);
}

.main-image-card img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 277px;
  max-height: 385px;
  object-fit: contain;
}

.main-product-video {
  width: 100%;
  height: 100%;
  min-height: 320px;
  max-width: 100%;
  border-radius: 18px;
  background: #000000;
  border: 0;
}

.product-summary {
  position: relative;
  z-index: 1;
  padding: 24px 12px 0 0;
}

.product-category {
  margin: 0 0 12px;
  color: var(--text-grey);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.2;
}

.product-summary h1 {
  margin: 0 0 24px;
  font-family: var(--font-heading);
  font-size: clamp(42px, 4.2vw, 60px);
  font-weight: 800;
  line-height: 0.98;
}

.product-checklist {
  display: grid;
  gap: 16px;
  margin: 0 0 31px;
  padding: 0;
  list-style: none;
}

.product-checklist li,
.related-card li {
  position: relative;
  padding-left: 23px;
  color: var(--text-grey);
  font-size: 18px;
  line-height: 1.45;
}

.feature-label {
  color: #000000;
  font-weight: 500;
}

.feature-icon {
  position: absolute;
  top: 8px;
  left: 0;
  width: 14px;
  height: 10px;
}

.related-card .feature-icon {
  top: 5px;
  height: 14px;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 2px;
}

.action-button,
.details-button,
.email-button {
  min-height: 39px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 72px;
  border-radius: 9px;
  border: 1px solid var(--primary-blue);
  font-size: 16px;
  font-weight: 500;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.details-button {
  min-height: 39px !important;
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 24px;
  border-radius: 9px;
  border: 1px solid var(--primary-blue);
  font-size: 16px;
  font-weight: 500;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.action-button:hover,
.details-button:hover,
.email-button:hover {
  transform: translateY(-1px);
}

.action-button-primary,
.email-button {
  background: var(--primary-blue);
  color: var(--white);
}

.action-button-primary:hover,
.email-button:hover {
  background: transparent;
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

.action-button-secondary,
.details-button {
  background: transparent;
  color: var(--primary-blue);
}

.action-button-secondary:hover,
.details-button:hover {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: var(--white);
}

.brochure-link {
  display: inline-block;
  margin-top: 24px;
  color: var(--text-dark);
  font-size: 18px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.product-tabs-section {
  padding: 26px 0 60px;
}

.tabs-shell {
  padding: 0 40px;
}

.product-tabs {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  overflow-x: visible;
  border-bottom: 1px solid rgba(84, 90, 108, 0.22);
}

.tab-button {
  position: relative;
  flex: 0 0 auto;
  padding: 0px 64px 25px;
  border: 0;
  background: transparent;
  color: var(--text-grey);
  font-size: 20px;
  line-height: 1.1;
  cursor: pointer;
}

.tab-button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  border-radius: 999px;
  background: transparent;
  transition: background-color 180ms ease;
}

.tab-button.is-active {
  color: var(--text-dark);
}

.tab-button.is-active::after {
  background: var(--primary-blue);
}

.tab-panels {
  padding-top: 31px;
}

.tab-panel {
  max-width: 960px;
}

.tab-panel h2 {
  margin: 0 0 16px;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.1;
}

.tab-panel p {
  margin: 0 0 20px;
  color: var(--text-grey);
  font-size: 18px;
  line-height: 1.72;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.spec-item,
.compare-card {
  padding: 24px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: var(--white);
}

.spec-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-grey);
  font-size: 15px;
}

.related-products-section {
  position: relative;
  padding: 0 0 72px;
  overflow: hidden;
}

.section-title {
  margin: 0 0 26px;
  font-family: var(--font-heading);
  font-size: clamp(36px, 4vw, 50px);
  font-weight: 800;
  line-height: 0.95;
  text-transform: uppercase;
}

.section-title span {
  color: var(--text-dark);
}

.section-title strong {
  color: var(--primary-blue);
  font-weight: 800;
}

.related-products-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.listing-rings {
  position: absolute;
  left: 0;
  bottom: -465px;
  z-index: 0;
  width: clamp(360px, 34vw, 502px);
  height: auto;
  max-width: none;
  pointer-events: none;
}

.related-card {
  min-height: 387px;
  display: flex;
  flex-direction: column;
  padding: 15px 18px 21px;
  border-radius: 24px;
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 54px rgba(10, 32, 66, 0.12);
}

.related-image {
  min-height: 212px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.related-image img {
  width: 100%;
  max-width: 230px;
  max-height: 188px;
  object-fit: contain;
}

.related-card h3 {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.1;
}

.related-card ul {
  display: grid;
  gap: 14px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.related-card .details-button {
  margin-top: auto;
  align-self: flex-start;
}

.cta-section {
  position: relative;
  min-height: 313px;
  background: var(--section-bg);
  overflow: hidden;
}

.cta-bg,
.footer-bg {
  position: absolute;
  background: var(--white);
}

.cta-bg {
  inset: 90px 0 0 auto;
  z-index: 0;
  width: calc((100vw - var(--container)) / 2 + var(--container) + 116px);
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 246px 1fr;
  gap: 126px;
  align-items: start;
}

.cta-image {
  width: 490px;
  height: 246px;
  margin-left: calc((var(--container) - 100vw) / 2);
  overflow: hidden;
  border-radius: 0 130px 130px 0;
}

.cta-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-content {
  padding-top: 174px;
}

.cta-content h2 {
  max-width: 812px;
  margin: 0 0 30px;
  font-family: var(--font-heading);
  font-size: clamp(42px, 3.75vw, 60px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: 0;
  text-transform: uppercase;
}

.cta-content h2 span {
  color: var(--text-grey);
}

.email-button {
  min-width: 458px;
  height: 65px;
  margin-bottom: 48px;
  border-radius: 5px;
  font-family: var(--font-heading);
  font-size: 24px;
  line-height: 1;
}

.site-footer {
  position: relative;
  background: var(--section-bg);
  padding: 0 0 89px;
}

.footer-bg {
  inset: 0 0 0 auto;
  width: calc((100vw - var(--container)) / 2 + var(--container) + 116px);
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 255px 1fr;
  gap: 134px;
  border-top: 1px solid var(--border-color);
  padding-top: 56px;
}

.footer-brand img {
  width: 255px;
  height: auto;
  margin: 0 0 20px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.footer-brand p,
.footer-links nav,
.footer-links p {
  margin: 0;
  color: var(--text-grey);
  font-size: 15px;
  line-height: 1.5;
}

.footer-links p {
  color: var(--text-grey);
}

.footer-brand a:hover,
.footer-links a:hover {
  color: var(--primary-blue);
}

.footer-links p a {
  color: var(--primary-blue);
}

.footer-links h2 {
  margin: 0;
  margin: 0 0 28px;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
}

.footer-links nav {
  display: flex;
  gap: 36px;
  margin-bottom: 32px;
}

.footer-brand a,
.footer-links a {
  transition: color 180ms ease;
}