/* ============================================================
   GP NADIYA KUKHTA — CLEAN FRONTEND
   ------------------------------------------------------------
   Readable, dependency-free stylesheet.
   Readable styles with no builder runtime or external font requests.
   ============================================================ */

/* ------------------------------------------------------------
   1. Design tokens
   ------------------------------------------------------------ */
:root {
  --brand: #25afb8;
  --brand-dark: #168f98;
  --navy: #163b71;
  --navy-deep: #102e58;
  --ink: #141414;
  --muted: #595959;
  --line: #d7dce5;
  --surface: #ffffff;
  --surface-soft: #f5f5fa;
  --powder: #e3ebf8;
  --danger: #b42318;

  --container: 1200px;
  --gutter: 24px;
  --radius: 5px;
  --radius-lg: 12px;
  --shadow-soft: 0 12px 34px rgba(22, 59, 113, 0.10);
  --shadow-card: 0 8px 24px rgba(15, 38, 70, 0.08);

  --font: "Montserrat", "Segoe UI", Arial, sans-serif;
  --font-readable: "Lato", "Segoe UI", Arial, sans-serif;

  --header-height: 102px;
  --transition: 180ms ease;
}

/* ------------------------------------------------------------
   2. Reset / base
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: #fff;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

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

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

p:last-child,
ul:last-child,
ol:last-child,
dl:last-child {
  margin-bottom: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.15;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 600;
  letter-spacing: -0.035em;
}

h2 {
  margin-bottom: 28px;
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 600;
  letter-spacing: -0.025em;
}

h3 {
  margin-bottom: 14px;
  font-size: 22px;
  font-weight: 600;
}

::selection {
  color: #fff;
  background: var(--brand);
}

:focus-visible {
  outline: 3px solid rgba(37, 175, 184, 0.38);
  outline-offset: 3px;
}

.container {
  width: min(calc(100% - (var(--gutter) * 2)), var(--container));
  margin-inline: auto;
}

.section {
  padding: 92px 0;
}

.desktop-only {
  display: inline;
}

/* ------------------------------------------------------------
   3. Reusable buttons / links
   ------------------------------------------------------------ */
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  transition:
    background-color var(--transition),
    border-color var(--transition),
    color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  color: #fff;
  background: var(--brand);
  border-color: var(--brand);
  box-shadow: 0 7px 18px rgba(37, 175, 184, 0.18);
}

.button--primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
}

.button--secondary {
  color: var(--navy);
  background: transparent;
  border-color: var(--navy);
}

.button--secondary:hover {
  color: #fff;
  background: var(--navy);
}

.button--large {
  min-height: 52px;
  padding: 14px 28px;
}

.button--small {
  min-height: 40px;
  padding: 9px 15px;
  font-size: 14px;
}

.button--compact {
  min-height: 40px;
  padding: 9px 16px;
  font-size: 14px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.text-action {
  padding: 0;
  border: 0;
  color: var(--navy);
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  text-align: left;
  transition: color var(--transition);
}

.text-action:hover {
  color: var(--brand-dark);
}

/* ------------------------------------------------------------
   4. Header / navigation
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  background: #fff;
  box-shadow: 0 2px 14px rgba(21, 44, 74, 0.08);
}

.topbar {
  color: #fff;
  background: var(--navy);
}

.topbar__inner {
  display: flex;
  min-height: 36px;
  align-items: center;
  justify-content: flex-end;
  gap: 28px;
}

.topbar__link {
  font-size: 13px;
  font-weight: 500;
  transition: opacity var(--transition);
}

.topbar__link:hover {
  opacity: 0.75;
}

.nav-shell {
  position: relative;
  background: #fff;
}

.nav-shell__inner {
  display: grid;
  min-height: 82px;
  grid-template-columns: minmax(245px, auto) 1fr auto;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
}

.brand__name {
  color: var(--navy);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand__role {
  margin-top: 6px;
  color: var(--brand-dark);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.17em;
}

.desktop-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(14px, 1.55vw, 25px);
}

.desktop-nav a {
  position: relative;
  white-space: nowrap;
  color: #282828;
  font-size: 14px;
  font-weight: 500;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--brand);
  content: "";
  opacity: 0;
  transform: scaleX(0.45);
  transition: opacity var(--transition), transform var(--transition);
}

.desktop-nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.burger {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
}

.burger span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: var(--navy);
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

.mobile-menu {
  display: none;
}

/* ------------------------------------------------------------
   5. Hero
   ------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.97) 0%, rgba(255, 255, 255, 0.88) 47%, rgba(255, 255, 255, 0.18) 100%),
    url("../assets/images/hero-background.webp") center / cover no-repeat;
}

.hero__grid {
  display: grid;
  min-height: 610px;
  grid-template-columns: minmax(0, 7fr) minmax(360px, 5fr);
  align-items: stretch;
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  max-width: 735px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 58px 24px 58px 0;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.hero__subtitle {
  max-width: 730px;
  margin-bottom: 34px;
  color: #303030;
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.45;
}

.hero__portrait-wrap {
  position: relative;
  align-self: end;
  height: 100%;
  min-height: 560px;
}

.hero__portrait {
  position: absolute;
  right: -3%;
  bottom: 0;
  width: 112%;
  height: 100%;
  object-fit: contain;
  object-position: right bottom;
}

/* ------------------------------------------------------------
   6. Section headings
   ------------------------------------------------------------ */
.section--intro-title {
  padding: 74px 0 35px;
}

.section--intro-title h2 {
  margin: 0;
}

.section-heading {
  max-width: 850px;
  margin-bottom: 45px;
}

.section-heading > h2:last-child,
.section-heading > p:last-child {
  margin-bottom: 0;
}

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

.section-heading--split {
  display: flex;
  max-width: none;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.section-heading--split h2 {
  margin-bottom: 0;
}

.section-lead {
  display: grid;
  grid-template-columns: 4px 0.75fr 1.7fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 54px;
}

.section-lead__line {
  width: 4px;
  height: 100%;
  min-height: 74px;
  border-radius: 8px;
  background: var(--brand);
}

.section-lead__title {
  margin: 0;
}

.section-lead__text {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 17px;
}

/* ------------------------------------------------------------
   7. About
   ------------------------------------------------------------ */
.section--about {
  padding-top: 20px;
  padding-bottom: 100px;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(320px, 5fr) minmax(0, 7fr);
  gap: clamp(44px, 6vw, 84px);
  align-items: stretch;
}

.about-photo {
  overflow: hidden;
  min-height: 590px;
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
}

.about-content {
  align-self: center;
  color: var(--muted);
}

.about-content > h3 {
  color: var(--navy);
}

.check-list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin-bottom: 13px;
  padding-left: 28px;
  color: var(--ink);
}

.check-list li::before {
  position: absolute;
  top: 3px;
  left: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  color: #fff;
  background: var(--brand);
  content: "✓";
  font-size: 11px;
  font-weight: 800;
  line-height: 18px;
  text-align: center;
}

.about-content__registration-title {
  margin-top: 32px;
}

.registration-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0 0 30px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.registration-grid > div {
  min-height: 94px;
  padding: 18px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.registration-grid dt {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
}

.registration-grid dd {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  word-break: break-word;
}

.registration-grid a {
  color: var(--brand-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.button-row--about {
  align-items: stretch;
}

/* ------------------------------------------------------------
   8. Services
   ------------------------------------------------------------ */
.services {
  background: var(--surface-soft);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid #e2e4ea;
  background: #e2e4ea;
}

.service-item {
  min-height: 315px;
  padding: 38px 34px;
  background: #fff;
}

.service-item__icon {
  width: 105px;
  height: 105px;
  margin-bottom: 28px;
  object-fit: contain;
}

.service-item p {
  margin: 0;
  color: #3d3d3d;
  font-family: var(--font-readable);
  font-size: 16px;
  line-height: 1.55;
}

/* ------------------------------------------------------------
   9. Products
   ------------------------------------------------------------ */
.products,
.certificates,
.contacts {
  background: var(--powder);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.product-card {
  display: flex;
  min-height: 470px;
  flex-direction: column;
  padding: 32px 30px;
  border: 1px solid rgba(22, 59, 113, 0.07);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.product-card__icon {
  width: 82px;
  height: 82px;
  margin-bottom: 25px;
  object-fit: contain;
}

.product-card h3 {
  min-height: 50px;
  color: var(--navy);
}

.product-card p {
  margin-bottom: 24px;
  color: var(--muted);
  font-family: var(--font-readable);
}

.product-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 10px;
}

/* ------------------------------------------------------------
   10. Insurance companies
   ------------------------------------------------------------ */
.company-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.company-card {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-soft);
  box-shadow: var(--shadow-card);
}

.company-card__image {
  height: 300px;
  overflow: hidden;
}

.company-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 450ms ease;
}

.company-card:hover .company-card__image img {
  transform: scale(1.025);
}

.company-card__body {
  padding: 31px 34px 35px;
}

.company-card__logo {
  width: 135px;
  max-height: 45px;
  margin-bottom: 22px;
  object-fit: contain;
  object-position: left center;
}

.company-card__body h3 {
  color: var(--navy);
}

.company-card__body p {
  margin-bottom: 12px;
  color: var(--muted);
}

.company-card__body a {
  color: var(--brand-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ------------------------------------------------------------
   11. Certificates
   ------------------------------------------------------------ */
.certificates h2 {
  margin-bottom: 42px;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.certificate {
  position: relative;
  overflow: hidden;
  aspect-ratio: 0.72;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 7px 20px rgba(22, 59, 113, 0.12);
  cursor: zoom-in;
}

.certificate::after {
  position: absolute;
  inset: 0;
  background: rgba(22, 59, 113, 0.16);
  content: "";
  opacity: 0;
  transition: opacity var(--transition);
}

.certificate:hover::after {
  opacity: 1;
}

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

/* ------------------------------------------------------------
   12. Consumer rights / accordion
   ------------------------------------------------------------ */
.consumer-rights {
  padding-bottom: 78px;
}

.consumer-rights h2 {
  max-width: 840px;
  margin-bottom: 42px;
}

.accordion {
  border-top: 1px solid var(--line);
}

.accordion-item {
  border-bottom: 1px solid var(--line);
}

.accordion-item__button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  padding: 23px 0;
  border: 0;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  text-align: left;
}

.accordion-item__button > span {
  flex: 0 0 auto;
  color: var(--brand-dark);
  font-size: 28px;
  font-weight: 400;
  line-height: 1;
  transition: transform var(--transition);
}

.accordion-item.is-open .accordion-item__button > span {
  transform: rotate(180deg);
}

.accordion-item__content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 320ms ease, opacity 220ms ease;
}

.accordion-item__content > p,
.accordion-item__content > ul {
  margin: 0;
  color: var(--muted);
}

.accordion-item__content > ul {
  padding-left: 22px;
}

.accordion-item__content a {
  color: var(--brand-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.accordion-item.is-open .accordion-item__content {
  max-height: 650px;
  opacity: 1;
  padding-bottom: 24px;
}

/* ------------------------------------------------------------
   13. Testimonials slider
   ------------------------------------------------------------ */
.testimonials {
  padding-top: 100px;
  padding-bottom: 70px;
}

.slider-controls {
  display: flex;
  gap: 10px;
}

.slider-arrow {
  display: inline-grid;
  width: 47px;
  height: 47px;
  place-items: center;
  border: 1px solid var(--navy);
  border-radius: 50%;
  color: var(--navy);
  background: #fff;
  cursor: pointer;
  font-size: 21px;
  transition: background var(--transition), color var(--transition), opacity var(--transition);
}

.slider-arrow:hover {
  color: #fff;
  background: var(--navy);
}

.slider-arrow:disabled {
  cursor: default;
  opacity: 0.35;
}

.reviews-viewport {
  overflow: hidden;
  margin: 0 -12px;
  padding: 10px 12px 25px;
}

.reviews-track {
  display: flex;
  margin: 0 -12px;
  transition: transform 420ms cubic-bezier(.2, .7, .2, 1);
  will-change: transform;
}

.review-card {
  flex: 0 0 calc(33.333333% - 24px);
  min-height: 375px;
  margin: 0 12px;
  padding: 34px 30px 32px;
  border: 1px solid #e6e8ed;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.review-card__quote {
  width: 38px;
  height: 31px;
  margin-bottom: 26px;
  object-fit: contain;
}

.review-card h3 {
  color: var(--navy);
  font-size: 19px;
}

.review-card p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-readable);
  font-size: 15px;
  line-height: 1.62;
}

/* ------------------------------------------------------------
   14. Contacts / form / map
   ------------------------------------------------------------ */
.contacts {
  padding-bottom: 0;
}

.contacts-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.92fr);
  gap: clamp(55px, 7vw, 90px);
  padding-bottom: 90px;
}

.contacts-info h2 {
  margin-bottom: 35px;
}

.contact-list {
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 15px;
  align-items: start;
  margin-bottom: 20px;
  color: var(--muted);
}

.contact-list__icon,
.contact-list__img {
  width: 28px;
  height: 28px;
  margin-top: 1px;
  object-fit: contain;
}

.contact-list__icon {
  display: grid;
  place-items: center;
  border: 2px solid var(--brand);
  border-radius: 50%;
  color: var(--brand-dark);
  font-size: 16px;
}

.contact-list strong {
  color: var(--ink);
}

.contact-list a {
  color: var(--navy);
  font-weight: 600;
}

.contacts-info__lead {
  max-width: 590px;
  margin-bottom: 28px;
  color: var(--muted);
}

.contact-form {
  padding: 36px;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.form-field {
  display: block;
  margin-bottom: 18px;
}

.form-field > span {
  display: block;
  margin-bottom: 7px;
  color: #333;
  font-size: 13px;
  font-weight: 600;
}

.form-field input,
.form-field textarea,
.buy-form input {
  width: 100%;
  border: 1px solid #cfd5df;
  border-radius: var(--radius);
  color: var(--ink);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field input,
.buy-form input {
  height: 51px;
  padding: 0 15px;
}

.form-field textarea {
  min-height: 140px;
  padding: 14px 15px;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus,
.buy-form input:focus {
  border-color: var(--brand);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(37, 175, 184, 0.13);
}

.consent {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 11px;
  align-items: start;
  margin: 22px 0 25px;
  color: #666;
  font-size: 12px;
  line-height: 1.45;
}

.consent input {
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
  accent-color: var(--brand);
}

.consent a {
  color: var(--navy);
  text-decoration: underline;
}

.form-note {
  margin: 14px 0 0;
  color: #777;
  font-size: 11px;
}

.map-wrap {
  width: 100%;
  height: 390px;
  background: #d8e0ea;
}

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ------------------------------------------------------------
   15. Footer
   ------------------------------------------------------------ */
.site-footer {
  color: rgba(255, 255, 255, 0.84);
  background: var(--navy);
}

.site-footer__main {
  padding: 62px 0 52px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr;
  gap: 60px;
}

.footer-brand {
  display: inline-block;
  color: #fff;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.footer-role {
  margin: 7px 0 29px;
  color: #8fd7dc;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.footer-nav {
  display: grid;
  gap: 11px;
  justify-items: start;
}

.footer-nav a,
.footer-column a {
  transition: color var(--transition), opacity var(--transition);
}

.footer-nav a:hover,
.footer-column a:hover {
  color: #fff;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
}

.footer-column p {
  margin-bottom: 5px;
}


/* ------------------------------------------------------------
   16. Floating contact actions
   ------------------------------------------------------------ */
.floating-actions {
  position: fixed;
  z-index: 80;
  right: 22px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.floating-action {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 7px 22px rgba(9, 33, 64, 0.21);
  cursor: pointer;
  transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
}

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

.floating-action img {
  width: 100%;
  height: 100%;
}

.floating-action--top {
  color: #fff;
  background: var(--navy);
  font-size: 21px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
}

.floating-action--top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ------------------------------------------------------------
   17. Modals
   ------------------------------------------------------------ */
.modal,
.lightbox {
  position: fixed;
  z-index: 300;
  inset: 0;
  display: grid;
  padding: 24px;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.modal.is-open,
.lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.modal__backdrop,
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 20, 39, 0.67);
  backdrop-filter: blur(2px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 760px);
  max-height: min(90vh, 820px);
  overflow: auto;
  padding: 42px;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  transform: translateY(12px) scale(0.985);
  transition: transform 180ms ease;
}

.modal.is-open .modal__panel {
  transform: translateY(0) scale(1);
}

.modal__panel--product {
  width: min(100%, 720px);
}

.modal__panel--card {
  width: min(100%, 920px);
}

.modal__panel--form {
  width: min(100%, 560px);
}

.modal__close,
.lightbox__close {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  font-size: 30px;
  line-height: 1;
}

.modal__close {
  position: absolute;
  z-index: 2;
  top: 14px;
  right: 14px;
  color: var(--navy);
  background: #f2f4f7;
}

.modal__logo {
  width: 140px;
  max-height: 50px;
  margin-bottom: 28px;
  object-fit: contain;
  object-position: left center;
}

.modal__panel h2 {
  padding-right: 32px;
}

.modal__description {
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 17px;
}

.product-extra {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 30px;
}

.product-extra__group {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.product-extra__group strong {
  display: block;
  margin-bottom: 7px;
  color: var(--navy);
}

.product-extra__group span {
  color: var(--muted);
  font-size: 14px;
}

/* Digital card */
.digital-card__head {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 30px;
  padding-right: 40px;
}

.digital-card__head h2 {
  margin: 0;
  padding: 0;
}

.digital-card__logo {
  width: 130px;
  max-height: 46px;
  object-fit: contain;
}

.digital-card__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.35fr 0.65fr;
  gap: 28px;
  align-items: center;
}

.digital-card__portrait {
  align-self: stretch;
  overflow: hidden;
  min-height: 330px;
  border-radius: var(--radius);
  background: var(--powder);
}

.digital-card__portrait img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
}

.digital-card__details {
  display: grid;
  gap: 16px;
}

.digital-card__field {
  display: grid;
  gap: 4px;
}

.digital-card__field span {
  color: var(--muted);
  font-size: 12px;
}

.digital-card__field strong,
.digital-card__field a {
  color: var(--ink);
  font-weight: 600;
}

.digital-card__field a:hover {
  color: var(--brand-dark);
}

.digital-card__qr img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

/* Buy online form */
.buy-form {
  display: grid;
  gap: 13px;
}

.buy-form input {
  height: 50px;
  padding: 0 15px;
}

.buy-form .button {
  margin-top: 8px;
}

/* ------------------------------------------------------------
   18. Certificate lightbox
   ------------------------------------------------------------ */
.lightbox {
  z-index: 320;
}

.lightbox__image {
  position: relative;
  z-index: 1;
  width: auto;
  max-width: min(92vw, 900px);
  height: auto;
  max-height: 90vh;
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

.lightbox__close {
  position: absolute;
  z-index: 2;
  top: 22px;
  right: 22px;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
}

/* ------------------------------------------------------------
   19. Toast
   ------------------------------------------------------------ */
.toast {
  position: fixed;
  z-index: 500;
  right: 24px;
  bottom: 24px;
  display: grid;
  width: min(360px, calc(100vw - 48px));
  gap: 2px;
  padding: 17px 20px;
  border-radius: var(--radius);
  color: #fff;
  background: var(--navy);
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px);
  transition: opacity 220ms ease, transform 220ms ease;
}

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

.toast span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}

/* ------------------------------------------------------------
   20. Responsive — laptop / tablet
   ------------------------------------------------------------ */
@media (max-width: 1120px) {
  :root {
    --gutter: 32px;
  }

  .desktop-nav {
    gap: 14px;
  }

  .desktop-nav a {
    font-size: 13px;
  }

  .brand__name {
    font-size: 19px;
  }

  .desktop-buy {
    padding-inline: 12px;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  }

  .product-card {
    padding-inline: 24px;
  }
}

@media (max-width: 991px) {
  :root {
    --header-height: 74px;
  }

  html {
    scroll-padding-top: 90px;
  }

  .topbar,
  .desktop-nav,
  .desktop-buy {
    display: none;
  }

  .nav-shell__inner {
    display: flex;
    min-height: 74px;
    justify-content: space-between;
  }

  .brand__name {
    font-size: 20px;
  }

  .burger {
    display: block;
  }

  .mobile-menu {
    position: absolute;
    z-index: 5;
    top: 100%;
    right: 0;
    left: 0;
    display: block;
    max-height: calc(100vh - 74px);
    padding: 25px var(--gutter) 30px;
    overflow: auto;
    border-top: 1px solid #eceef2;
    background: #fff;
    box-shadow: 0 18px 28px rgba(11, 35, 66, 0.12);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }

  .mobile-menu.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }

  .mobile-menu__nav {
    display: grid;
  }

  .mobile-menu__nav a {
    padding: 13px 0;
    border-bottom: 1px solid #eceef2;
    color: var(--navy);
    font-weight: 600;
  }

  .mobile-menu__contacts {
    display: grid;
    gap: 6px;
    margin: 23px 0;
    color: var(--muted);
    font-size: 14px;
  }

  .hero__grid {
    min-height: 560px;
    grid-template-columns: minmax(0, 1.1fr) minmax(270px, 0.9fr);
  }

  .hero__portrait-wrap {
    min-height: 520px;
  }

  .about-grid {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 42px;
  }

  .about-photo {
    min-height: 520px;
  }

  .section-lead {
    grid-template-columns: 4px 0.85fr 1.6fr;
  }

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

  .product-card {
    min-height: 450px;
  }

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

  .review-card {
    flex-basis: calc(50% - 24px);
  }

  .contacts-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .contact-form {
    padding: 28px;
  }

  .footer-grid {
    grid-template-columns: 1.2fr 1fr;
  }

  .footer-grid > :last-child {
    grid-column: 2;
  }

  .digital-card__grid {
    grid-template-columns: 0.8fr 1.2fr;
  }

  .digital-card__qr {
    grid-column: 2;
    width: 150px;
  }
}

/* ------------------------------------------------------------
   21. Responsive — mobile
   ------------------------------------------------------------ */
@media (max-width: 720px) {
  :root {
    --gutter: 20px;
  }

  .section {
    padding: 68px 0;
  }

  .desktop-only {
    display: none;
  }

  .hero {
    background-position: 20% center;
  }

  .hero__grid {
    display: flex;
    min-height: auto;
    flex-direction: column;
  }

  .hero__content {
    max-width: none;
    padding: 54px 0 30px;
  }

  .hero__subtitle {
    margin-bottom: 28px;
    font-size: 17px;
  }

  .hero__portrait-wrap {
    width: min(100%, 460px);
    min-height: 430px;
    align-self: center;
  }

  .hero__portrait {
    right: 0;
    width: 100%;
  }

  .button-row {
    width: 100%;
  }

  .button-row .button {
    flex: 1 1 190px;
  }

  .section--intro-title {
    padding-top: 60px;
    padding-bottom: 25px;
  }

  .section--about {
    padding-top: 10px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    min-height: auto;
    aspect-ratio: 0.78;
  }

  .registration-grid {
    grid-template-columns: 1fr;
  }

  .section-heading--split,
  .section-lead {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .section-heading--split {
    margin-bottom: 35px;
  }

  .section-lead {
    gap: 14px;
    margin-bottom: 38px;
  }

  .section-lead__line {
    width: 54px;
    height: 4px;
    min-height: 4px;
  }

  .service-grid,
  .product-grid,
  .company-grid,
  .contacts-grid {
    grid-template-columns: 1fr;
  }

  .service-item {
    min-height: 0;
    padding: 30px 25px;
  }

  .service-item__icon {
    width: 88px;
    height: 88px;
    margin-bottom: 20px;
  }

  .product-card {
    min-height: 0;
    padding: 28px 24px;
  }

  .product-card h3 {
    min-height: 0;
  }

  .company-card__image {
    height: 245px;
  }

  .company-card__body {
    padding: 26px 24px 30px;
  }

  .certificate-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .accordion-item__button {
    padding: 20px 0;
    font-size: 16px;
  }

  .testimonials .section-heading--split {
    flex-direction: row;
    align-items: center;
  }

  .testimonials .section-heading--split h2 {
    max-width: 68%;
  }

  .review-card {
    flex-basis: calc(100% - 24px);
    min-height: 0;
  }

  .contacts-grid {
    gap: 42px;
    padding-bottom: 68px;
  }

  .contact-form {
    padding: 24px 20px;
  }

  .map-wrap {
    height: 330px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-grid > :last-child {
    grid-column: auto;
  }


  .floating-actions {
    right: 14px;
    bottom: 14px;
  }

  .floating-action {
    width: 44px;
    height: 44px;
  }

  .modal,
  .lightbox {
    padding: 12px;
  }

  .modal__panel {
    width: 100%;
    max-height: 94vh;
    padding: 32px 22px 26px;
  }

  .product-extra {
    grid-template-columns: 1fr;
  }

  .digital-card__head {
    display: block;
  }

  .digital-card__logo {
    margin-bottom: 18px;
  }

  .digital-card__grid {
    grid-template-columns: 1fr;
  }

  .digital-card__portrait {
    min-height: 340px;
  }

  .digital-card__qr {
    grid-column: auto;
    width: min(180px, 55%);
  }
}

@media (max-width: 480px) {
  .brand__name {
    font-size: 17px;
  }

  .brand__role {
    font-size: 8px;
  }

  .hero__portrait-wrap {
    min-height: 360px;
  }

  .eyebrow {
    font-size: 11px;
  }

  .certificate-grid {
    grid-template-columns: 1fr 1fr;
  }

  .testimonials .section-heading--split {
    display: block;
  }

  .testimonials .section-heading--split h2 {
    max-width: none;
    margin-bottom: 22px;
  }

  .slider-controls {
    justify-content: flex-start;
  }

  .product-card__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .product-card__actions .button,
  .product-card__actions .text-action {
    width: 100%;
  }
}

/* ------------------------------------------------------------
   22. Accessibility / reduced motion
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ------------------------------------------------------------
   21. Premium motion and interaction layer
   ------------------------------------------------------------ */
:root {
  --ease-premium: cubic-bezier(.2, .72, .22, 1);
  --ease-soft: cubic-bezier(.22, .61, .36, 1);
  --shadow-lift: 0 18px 42px rgba(15, 38, 70, 0.12);
  --shadow-lift-strong: 0 24px 54px rgba(15, 38, 70, 0.15);
}

/* Header becomes lighter and more compact after the first scroll. */
.site-header,
.nav-shell,
.nav-shell__inner,
.brand__name,
.brand__role,
.topbar,
.topbar__inner {
  transition:
    min-height 320ms var(--ease-premium),
    padding 320ms var(--ease-premium),
    background-color 320ms var(--ease-premium),
    box-shadow 320ms var(--ease-premium),
    color 320ms var(--ease-premium),
    font-size 320ms var(--ease-premium),
    transform 320ms var(--ease-premium),
    opacity 320ms var(--ease-premium);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 30px rgba(15, 38, 70, 0.10);
  backdrop-filter: blur(16px) saturate(145%);
  -webkit-backdrop-filter: blur(16px) saturate(145%);
}

.site-header.is-scrolled .topbar__inner {
  min-height: 30px;
}

.site-header.is-scrolled .nav-shell {
  background: rgba(255, 255, 255, 0.88);
}

.site-header.is-scrolled .nav-shell__inner {
  min-height: 68px;
}

.site-header.is-scrolled .brand__name {
  font-size: 20px;
}

.site-header.is-scrolled .brand__role {
  margin-top: 4px;
  letter-spacing: 0.14em;
}

.desktop-nav a::after {
  transform-origin: left center;
}

.desktop-nav a.is-active {
  color: var(--navy);
}

.desktop-nav a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

/* Buttons feel physical without becoming flashy. */
.button {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition:
    background-color 220ms var(--ease-soft),
    border-color 220ms var(--ease-soft),
    color 220ms var(--ease-soft),
    transform 220ms var(--ease-premium),
    box-shadow 220ms var(--ease-premium);
}

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

.button:active {
  transform: translateY(0) scale(.985);
}

.button--primary:hover {
  box-shadow: 0 12px 26px rgba(37, 175, 184, 0.25);
}

.button--primary::before {
  position: absolute;
  z-index: -1;
  top: -60%;
  left: -40%;
  width: 34%;
  height: 220%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.24), transparent);
  content: "";
  opacity: 0;
  transform: rotate(18deg) translateX(-180%);
  transition: transform 600ms var(--ease-premium), opacity 180ms ease;
}

.button--primary:hover::before {
  opacity: 1;
  transform: rotate(18deg) translateX(520%);
}

.text-action {
  position: relative;
  transition: color 200ms ease, transform 200ms var(--ease-premium);
}

.text-action:hover {
  transform: translateX(3px);
}

/* Hero: a restrained entrance, soft cursor light and tiny parallax. */
.hero {
  --hero-x: 72%;
  --hero-y: 34%;
  --hero-bg-shift: 0px;
  background-position: center, center calc(50% + var(--hero-bg-shift));
}

.hero::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    radial-gradient(circle at var(--hero-x) var(--hero-y), rgba(37,175,184,.12), transparent 23%),
    radial-gradient(circle at 86% 80%, rgba(22,59,113,.07), transparent 30%);
  content: "";
  pointer-events: none;
  transition: background-position 240ms ease;
}

.hero__grid {
  position: relative;
  z-index: 2;
}

.motion-ready .hero__content > * {
  opacity: 0;
  transform: translateY(18px);
}

.motion-ready .hero__portrait {
  opacity: 0;
  transform: translate3d(22px, 0, 0) scale(.99);
}

.motion-ready.is-ready .hero__content > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 720ms var(--ease-premium), transform 720ms var(--ease-premium);
}

.motion-ready.is-ready .hero__content > :nth-child(1) { transition-delay: 70ms; }
.motion-ready.is-ready .hero__content > :nth-child(2) { transition-delay: 145ms; }
.motion-ready.is-ready .hero__content > :nth-child(3) { transition-delay: 220ms; }
.motion-ready.is-ready .hero__content > :nth-child(4) { transition-delay: 295ms; }

.motion-ready.is-ready .hero__portrait {
  opacity: 1;
  transform: translate3d(0, var(--portrait-shift, 0px), 0) scale(1);
  transition: opacity 900ms var(--ease-premium), transform 900ms var(--ease-premium);
  transition-delay: 120ms;
}

/* Universal scroll reveal. JS only adds these classes to meaningful blocks. */
.motion-ready .reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition:
    opacity 720ms var(--ease-premium),
    transform 720ms var(--ease-premium);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.motion-ready .reveal.reveal--left {
  transform: translate3d(-22px, 0, 0);
}

.motion-ready .reveal.reveal--right {
  transform: translate3d(22px, 0, 0);
}

.motion-ready .reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

/* About section: depth from the photo and calmer data cells. */
.about-photo {
  position: relative;
  box-shadow: 0 18px 42px rgba(15, 38, 70, 0.10);
}

.about-photo::after {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,.42);
  border-radius: inherit;
  content: "";
  pointer-events: none;
}

.about-photo img {
  transform: scale(1.025);
  transition: transform 900ms var(--ease-premium);
}

.about-photo:hover img {
  transform: scale(1.04);
}

.registration-grid > div {
  transition: background-color 220ms ease, border-color 220ms ease;
}

.registration-grid > div:hover {
  background: rgba(37,175,184,.055);
}

/* Section backgrounds receive barely-visible depth instead of flat fills. */
.services {
  background:
    radial-gradient(circle at 4% 8%, rgba(37,175,184,.055), transparent 31%),
    var(--surface-soft);
}

.products {
  background:
    radial-gradient(circle at 100% 0%, rgba(37,175,184,.065), transparent 28%),
    radial-gradient(circle at 0% 100%, rgba(22,59,113,.045), transparent 30%),
    var(--powder);
}

.testimonials {
  background:
    radial-gradient(circle at 92% 15%, rgba(37,175,184,.04), transparent 27%),
    #fff;
}

/* Services: one accent, one lift, no exaggerated 3D effects. */
.service-item {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition:
    background-color 260ms ease,
    box-shadow 280ms var(--ease-premium),
    transform 280ms var(--ease-premium);
}

.service-item::before {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), #5bcbd2);
  content: "";
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 320ms var(--ease-premium);
}

.service-item:hover {
  z-index: 1;
  background: #fbfefe;
  box-shadow: 0 18px 36px rgba(15,38,70,.10);
  transform: translateY(-4px);
}

.service-item:hover::before {
  transform: scaleX(1);
}

.service-item__icon {
  transition: transform 360ms var(--ease-premium), filter 360ms ease;
}

.service-item:hover .service-item__icon {
  transform: translateY(-4px) scale(1.035);
  filter: saturate(1.06);
}

/* Product cards are the primary commercial interaction. */
.product-card {
  position: relative;
  overflow: hidden;
  transition:
    transform 320ms var(--ease-premium),
    box-shadow 320ms var(--ease-premium),
    border-color 260ms ease;
}

.product-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), rgba(37,175,184,.35));
  content: "";
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 340ms var(--ease-premium);
}

.product-card:hover {
  border-color: rgba(37,175,184,.22);
  box-shadow: var(--shadow-lift-strong);
  transform: translateY(-7px);
}

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

.product-card__icon {
  transition: transform 320ms var(--ease-premium);
}

.product-card:hover .product-card__icon {
  transform: translateY(-3px) scale(1.035);
}

/* Company cards retain the editorial feel of large photography. */
.company-card {
  transition: transform 340ms var(--ease-premium), box-shadow 340ms var(--ease-premium);
}

.company-card:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px);
}

.company-card__image img {
  transition: transform 700ms var(--ease-premium);
}

.company-card:hover .company-card__image img {
  transform: scale(1.045);
}

.company-card__logo {
  transition: transform 300ms var(--ease-premium), opacity 300ms ease;
}

.company-card:hover .company-card__logo {
  transform: translateY(-2px);
}

/* Certificates: tactile gallery behavior and a centered zoom cue. */
.certificate {
  transition: transform 320ms var(--ease-premium), box-shadow 320ms var(--ease-premium);
}

.certificate::before {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 50%;
  color: #fff;
  background: rgba(16,46,88,.72);
  content: "+";
  font-size: 28px;
  font-weight: 300;
  opacity: 0;
  transform: translate(-50%, -44%) scale(.9);
  transition: opacity 220ms ease, transform 280ms var(--ease-premium);
}

.certificate:hover {
  box-shadow: 0 18px 40px rgba(22,59,113,.18);
  transform: translateY(-5px);
}

.certificate:hover::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.certificate img {
  transition: transform 550ms var(--ease-premium);
}

.certificate:hover img {
  transform: scale(1.02);
}

/* Accordion opens with measured height from JS; this feels natural at any text length. */
.accordion-item {
  transition: background-color 240ms ease;
}

.accordion-item.is-open {
  background: linear-gradient(90deg, rgba(37,175,184,.045), transparent 68%);
}

.accordion-item__button {
  transition: color 220ms ease, padding 260ms var(--ease-premium);
}

.accordion-item__button:hover,
.accordion-item.is-open .accordion-item__button {
  color: var(--navy);
}

.accordion-item__content {
  transition:
    max-height 430ms var(--ease-premium),
    opacity 260ms ease,
    padding-bottom 430ms var(--ease-premium);
}

/* Reviews: smoother controls and an understated progress indicator. */
.slider-arrow {
  transition:
    background-color 220ms ease,
    color 220ms ease,
    border-color 220ms ease,
    opacity 220ms ease,
    transform 220ms var(--ease-premium);
}

.slider-arrow:not(:disabled):hover {
  transform: translateY(-2px);
}

.slider-arrow:not(:disabled):active {
  transform: scale(.96);
}

.reviews-viewport {
  cursor: grab;
  touch-action: pan-y;
}

.reviews-viewport.is-dragging {
  cursor: grabbing;
  user-select: none;
}

.reviews-viewport.is-dragging .reviews-track {
  transition: none;
}

.review-card {
  transition: transform 320ms var(--ease-premium), box-shadow 320ms var(--ease-premium), border-color 320ms ease;
}

.review-card:hover {
  border-color: rgba(37,175,184,.18);
  box-shadow: var(--shadow-lift);
  transform: translateY(-4px);
}

.reviews-progress {
  position: relative;
  width: min(360px, 55vw);
  height: 2px;
  margin: 4px auto 0;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(22,59,113,.12);
}

.reviews-progress__bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--navy));
  transition: width 420ms var(--ease-premium);
}

/* Forms: stronger focus hierarchy and clear local-submit feedback. */
.form-field input,
.form-field textarea,
.buy-form input {
  transition:
    border-color 220ms ease,
    box-shadow 220ms ease,
    transform 220ms var(--ease-premium),
    background-color 220ms ease;
}

.form-field input:hover,
.form-field textarea:hover,
.buy-form input:hover {
  border-color: #aeb8c8;
}

.form-field input:focus,
.form-field textarea:focus,
.buy-form input:focus {
  background: #fcffff;
  box-shadow: 0 0 0 4px rgba(37,175,184,.11), 0 9px 24px rgba(22,59,113,.06);
  transform: translateY(-1px);
}

.button.is-loading {
  cursor: wait;
  opacity: .88;
  pointer-events: none;
}

.button.is-loading::after {
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255,255,255,.45);
  border-top-color: #fff;
  border-radius: 50%;
  content: "";
  animation: button-spin 700ms linear infinite;
}

.button.is-success {
  background: #147c83;
  border-color: #147c83;
}

@keyframes button-spin {
  to { transform: rotate(360deg); }
}

/* Map transition into the footer is less abrupt. */
.map-wrap {
  position: relative;
  overflow: hidden;
}

.map-wrap::before {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  left: 0;
  height: 28px;
  background: linear-gradient(to bottom, rgba(227,235,248,.55), transparent);
  content: "";
  pointer-events: none;
}

/* Footer links use a deliberate underline instead of abrupt color changes. */
.footer-nav a,
.footer-column a {
  position: relative;
}

.footer-nav a::after,
.footer-column a::after {
  position: absolute;
  right: 0;
  bottom: -3px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 240ms var(--ease-premium);
}

.footer-nav a:hover::after,
.footer-column a:hover::after {
  transform: scaleX(1);
}

/* Modals and lightbox enter like a product UI, not a generic popup. */
.modal,
.lightbox {
  transition: opacity 260ms ease, visibility 260ms ease;
}

.modal__backdrop,
.lightbox__backdrop {
  background: rgba(8,20,39,.62);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal__panel {
  transform: translateY(18px) scale(.985);
  transition: transform 320ms var(--ease-premium), opacity 280ms ease;
}

.modal.is-open .modal__panel {
  transform: translateY(0) scale(1);
}

.modal__close,
.lightbox__close {
  transition: transform 220ms var(--ease-premium), background-color 220ms ease;
}

.modal__close:hover,
.lightbox__close:hover {
  transform: rotate(5deg) scale(1.05);
}

.lightbox__image {
  opacity: 0;
  transform: scale(.94);
  transition: opacity 300ms ease, transform 360ms var(--ease-premium);
}

.lightbox.is-open .lightbox__image {
  opacity: 1;
  transform: scale(1);
}

/* Circular scroll progress around the back-to-top button. */
.floating-action--top {
  --scroll-progress: 0deg;
  position: relative;
  border: 2px solid transparent;
  background:
    linear-gradient(var(--navy), var(--navy)) padding-box,
    conic-gradient(var(--brand) var(--scroll-progress), rgba(255,255,255,.22) 0) border-box;
}

/* Small screens keep the polish, but remove effects that could feel busy. */
@media (max-width: 720px) {
  .site-header.is-scrolled .nav-shell__inner {
    min-height: 62px;
  }

  .hero::after {
    background: radial-gradient(circle at 78% 28%, rgba(37,175,184,.09), transparent 28%);
  }

  .service-item:hover,
  .product-card:hover,
  .company-card:hover,
  .certificate:hover,
  .review-card:hover {
    transform: none;
  }

  .reviews-progress {
    width: min(260px, 72vw);
  }
}

/* Motion accessibility: keep the design, remove the movement. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .motion-ready .reveal,
  .motion-ready .hero__content > *,
  .motion-ready .hero__portrait,
  .lightbox__image {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ============================================================
   23. MOBILE EXPERIENCE — dedicated touch layout
   ------------------------------------------------------------
   This layer intentionally changes only the phone experience.
   Desktop/tablet layout above remains the source of truth.
   ============================================================ */

.mobile-contact-bar {
  display: none;
}

@media (max-width: 720px) {
  :root {
    --gutter: 18px;
    --mobile-header-height: 68px;
    --mobile-dock-height: 70px;
  }

  html {
    scroll-padding-top: 78px;
  }

  body {
    padding-bottom: calc(var(--mobile-dock-height) + env(safe-area-inset-bottom, 0px));
  }

  /* A thinner mobile page-progress line under the sticky header. */
  .site-header::after {
    position: absolute;
    z-index: 6;
    right: 0;
    bottom: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand), var(--navy));
    content: "";
    pointer-events: none;
    transform: scaleX(var(--page-progress, 0));
    transform-origin: left center;
  }

  .nav-shell__inner {
    min-height: var(--mobile-header-height);
    gap: 12px;
  }

  .site-header.is-scrolled .nav-shell__inner {
    min-height: 60px;
  }

  .brand {
    min-width: 0;
  }

  .brand__name {
    max-width: calc(100vw - 92px);
    overflow: hidden;
    font-size: 17px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .brand__role {
    margin-top: 5px;
    font-size: 7px;
    letter-spacing: .18em;
  }

  .burger {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border-radius: 12px;
    transition: background-color 220ms ease;
  }

  .burger:active,
  .burger.is-open {
    background: rgba(22, 59, 113, .055);
  }

  /* Mobile navigation becomes a deliberate full-height sheet. */
  .mobile-menu {
    position: fixed;
    z-index: 4;
    top: var(--mobile-header-height);
    right: 0;
    bottom: 0;
    left: 0;
    max-height: none;
    padding: 24px var(--gutter) calc(28px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid rgba(22, 59, 113, .08);
    background:
      radial-gradient(circle at 100% 0%, rgba(37, 175, 184, .08), transparent 34%),
      rgba(255, 255, 255, .985);
    box-shadow: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 240ms ease, transform 300ms var(--ease-premium), visibility 240ms ease;
  }

  .site-header.is-scrolled .mobile-menu {
    top: 60px;
  }

  .mobile-menu__nav {
    gap: 0;
  }

  .mobile-menu__nav a {
    display: flex;
    min-height: 58px;
    align-items: center;
    justify-content: space-between;
    padding: 14px 2px;
    border-bottom: 1px solid rgba(22, 59, 113, .09);
    font-size: clamp(19px, 5vw, 23px);
    font-weight: 600;
    letter-spacing: -.02em;
  }

  .mobile-menu__nav a::after {
    color: var(--brand-dark);
    content: "→";
    font-size: 17px;
    font-weight: 500;
  }

  .mobile-menu__contacts {
    gap: 9px;
    margin: 26px 0 20px;
    font-size: 14px;
  }

  .mobile-menu > .button {
    width: 100%;
    min-height: 52px;
  }

  /* Hero: less empty vertical space, stronger CTA hierarchy. */
  .hero {
    background-position: 24% center;
  }

  .hero::before {
    position: absolute;
    z-index: 3;
    right: 0;
    bottom: 0;
    left: 0;
    height: 86px;
    background: linear-gradient(to bottom, rgba(255,255,255,0), #fff 92%);
    content: "";
    pointer-events: none;
  }

  .hero__content {
    padding: 36px 0 14px;
  }

  .hero__content h1 {
    max-width: 360px;
    margin-bottom: 16px;
    font-size: clamp(29px, 7.4vw, 34px);
    line-height: 1.08;
    letter-spacing: -.04em;
  }

  .eyebrow {
    margin-bottom: 12px;
    font-size: 10px;
    letter-spacing: .17em;
  }

  .hero__subtitle {
    max-width: 390px;
    margin-bottom: 21px;
    color: #4c4c4c;
    font-size: 15.5px;
    line-height: 1.45;
  }

  .hero .button-row {
    display: grid;
    width: 100%;
    max-width: 390px;
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .hero .button-row .button {
    width: 100%;
    min-height: 50px;
    flex: none;
  }

  .hero .button-row .button--primary {
    box-shadow: 0 10px 24px rgba(37, 175, 184, .20);
  }

  .hero .button-row .button--secondary {
    min-height: 42px;
    padding-block: 8px;
    border-color: transparent;
    background: transparent;
    box-shadow: none;
    font-size: 14px;
  }

  .hero .button-row .button--secondary::after {
    content: " →";
  }

  .hero .button-row .button--secondary:active,
  .hero .button-row .button--secondary:hover {
    color: var(--navy);
    background: rgba(22, 59, 113, .045);
  }

  .hero__portrait-wrap {
    width: min(100%, 405px);
    min-height: 340px;
    margin-top: -2px;
  }

  .hero__portrait {
    right: 0;
    bottom: -2px;
    width: 100%;
  }

  /* Mobile rhythm is denser without looking cramped. */
  .section {
    padding: 56px 0;
  }

  .section--intro-title {
    padding-top: 46px;
    padding-bottom: 22px;
  }

  .section--intro-title h2,
  .section h2 {
    font-size: clamp(27px, 7vw, 33px);
  }

  .section--about {
    padding-top: 8px;
  }

  .about-grid {
    gap: 30px;
  }

  .about-photo {
    max-height: 560px;
    border-radius: 12px;
  }

  .about-content h3 {
    font-size: 20px;
  }

  .registration-grid > div {
    padding: 14px 0;
  }

  .button-row--about {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button-row--about .button {
    width: 100%;
  }

  /* Services become compact information rows instead of tall desktop tiles. */
  .service-grid {
    gap: 10px;
    overflow: visible;
    border: 0;
    background: transparent;
  }

  .service-item {
    display: grid;
    min-height: 0;
    grid-template-columns: 64px minmax(0, 1fr);
    align-items: center;
    gap: 17px;
    padding: 20px 18px;
    border: 1px solid rgba(22, 59, 113, .085);
    border-radius: 12px;
    box-shadow: 0 7px 22px rgba(15, 38, 70, .045);
  }

  .service-item::before {
    top: 12px;
    right: auto;
    bottom: 12px;
    left: 0;
    width: 3px;
    height: auto;
    border-radius: 0 4px 4px 0;
    transform: scaleY(0);
    transform-origin: center bottom;
  }

  .service-item__icon {
    width: 64px;
    height: 64px;
    margin: 0;
  }

  .service-item p {
    font-size: 14.5px;
    line-height: 1.48;
  }

  /* Product cards keep sales emphasis, but lose unnecessary mobile height. */
  .product-grid {
    gap: 16px;
  }

  .product-card {
    padding: 24px 20px 21px;
    border-radius: 13px;
  }

  .product-card__icon {
    width: 64px;
    height: 64px;
    margin-bottom: 17px;
  }

  .product-card h3 {
    margin-bottom: 10px;
    font-size: 21px;
  }

  .product-card p {
    margin-bottom: 18px;
    font-size: 14.5px;
    line-height: 1.52;
  }

  .product-card__actions {
    gap: 12px;
    padding-top: 4px;
  }

  .product-card__actions .button {
    min-height: 42px;
  }

  .company-card {
    border-radius: 13px;
  }

  .company-card__image {
    height: 220px;
  }

  .company-card__body {
    padding: 23px 20px 26px;
  }

  /* Certificates are swipeable and visibly continue off-screen. */
  .certificate-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: min(72vw, 286px);
    grid-template-columns: none;
    gap: 14px;
    margin-inline: calc(-1 * var(--gutter));
    padding: 2px var(--gutter) 14px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-padding-inline: var(--gutter);
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .certificate-grid::-webkit-scrollbar {
    display: none;
  }

  .certificate {
    scroll-snap-align: start;
    border-radius: 12px;
  }

  /* Touch targets: easier accordion without visually growing the page too much. */
  .accordion-item__button {
    min-height: 58px;
    padding: 18px 2px;
    gap: 16px;
    font-size: 16px;
  }

  .accordion-item__button > span {
    display: grid;
    width: 30px;
    height: 30px;
    flex: 0 0 30px;
    place-items: center;
    border-radius: 50%;
    background: rgba(22, 59, 113, .055);
  }

  /* Reviews reveal a piece of the next card as a swipe affordance. */
  .review-card {
    flex-basis: calc(92% - 8px);
    padding: 25px 22px;
    border-radius: 13px;
  }

  .reviews-track {
    gap: 12px;
  }

  .reviews-progress {
    width: min(230px, 65vw);
    margin-top: 10px;
  }

  /* Contact section gets comfortable touch controls. */
  .contacts-grid {
    gap: 32px;
    padding-bottom: 54px;
  }

  .contact-form {
    padding: 22px 18px;
    border-radius: 13px;
  }

  .form-field input,
  .buy-form input {
    min-height: 52px;
  }

  .form-field textarea {
    min-height: 128px;
  }

  .contact-form > .button {
    width: 100%;
    min-height: 52px;
  }

  .map-wrap {
    height: 305px;
  }

  /* Desktop floating messengers disappear; the top button stays above the dock. */
  .floating-actions {
    right: 14px;
    bottom: calc(var(--mobile-dock-height) + 14px + env(safe-area-inset-bottom, 0px));
  }

  .floating-actions .floating-action:not(.floating-action--top) {
    display: none;
  }

  .floating-action--top {
    width: 42px;
    height: 42px;
    font-size: 18px;
  }

  /* Persistent mobile contact dock; revealed only after leaving the hero. */
  .mobile-contact-bar {
    position: fixed;
    z-index: 190;
    right: 10px;
    bottom: max(9px, env(safe-area-inset-bottom, 0px));
    left: 10px;
    display: grid;
    min-height: 60px;
    grid-template-columns: repeat(3, 1fr);
    padding: 6px;
    border: 1px solid rgba(22, 59, 113, .09);
    border-radius: 18px;
    background: rgba(255, 255, 255, .94);
    box-shadow: 0 14px 38px rgba(8, 31, 62, .18);
    opacity: 0;
    pointer-events: none;
    transform: translateY(18px) scale(.985);
    visibility: hidden;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: opacity 220ms ease, transform 300ms var(--ease-premium), visibility 220ms ease;
  }

  .mobile-contact-bar.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
    visibility: visible;
  }

  .mobile-contact-bar__item {
    display: flex;
    min-width: 0;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 5px 7px;
    border-radius: 13px;
    color: var(--navy);
    font-size: 11.5px;
    font-weight: 700;
    transition: background-color 180ms ease, transform 160ms ease;
  }

  .mobile-contact-bar__item:active {
    background: rgba(22, 59, 113, .055);
    transform: scale(.97);
  }

  .mobile-contact-bar__item img {
    width: 27px;
    height: 27px;
    flex: 0 0 27px;
  }

  /* On phones the modal behaves like a native bottom sheet. */
  .modal {
    align-items: end;
    padding: 0;
  }

  .modal__panel {
    position: relative;
    width: 100%;
    max-width: none;
    max-height: min(90dvh, 780px);
    padding: 36px 20px calc(24px + env(safe-area-inset-bottom, 0px));
    border-radius: 20px 20px 0 0;
    transform: translateY(32px) scale(1);
  }

  .modal__panel::before {
    position: absolute;
    top: 10px;
    left: 50%;
    width: 42px;
    height: 4px;
    border-radius: 999px;
    background: #d8dde6;
    content: "";
    transform: translateX(-50%);
  }

  .modal.is-open .modal__panel {
    transform: translateY(0) scale(1);
  }

  .modal__close {
    top: 16px;
    right: 16px;
  }

  .digital-card__portrait {
    min-height: 300px;
  }

  .site-footer__main {
    padding-bottom: 38px;
  }
}

@media (max-width: 480px) {
  .hero__content {
    padding-top: 32px;
  }

  .hero__portrait-wrap {
    min-height: 315px;
  }

  .hero .button-row {
    max-width: none;
  }

  .service-item {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 14px;
    padding: 18px 16px;
  }

  .service-item__icon {
    width: 58px;
    height: 58px;
  }

  .mobile-contact-bar__item {
    gap: 5px;
    font-size: 10.5px;
  }

  .mobile-contact-bar__item img {
    width: 25px;
    height: 25px;
    flex-basis: 25px;
  }
}

/* ------------------------------------------------------------
   24. Targeted QA fixes — mobile navigation, digital card,
       hero portrait, circular reviews and accordion arrows
   ------------------------------------------------------------ */

/* Stable, geometric accordion chevron; no font-baseline drift. */
.accordion-item__button > span {
  position: relative;
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  color: var(--brand-dark);
  font-size: 0;
  line-height: 0;
  transform: none;
}

.accordion-item__button > span::before {
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  content: "";
  transform: translateY(-2px) rotate(45deg);
  transition: transform 220ms var(--ease-premium);
}

.accordion-item.is-open .accordion-item__button > span {
  transform: none;
}

.accordion-item.is-open .accordion-item__button > span::before {
  transform: translateY(2px) rotate(225deg);
}

@media (max-width: 720px) {
  /*
     Keep the full mobile menu attached to the sticky header instead of the
     viewport. This avoids the fixed-position containing-block bug created by
     backdrop-filter after the header enters its scrolled state.
  */
  .site-header {
    --mobile-current-header-height: var(--mobile-header-height);
  }

  .site-header.is-scrolled {
    --mobile-current-header-height: 60px;
  }

  .mobile-menu,
  .site-header.is-scrolled .mobile-menu {
    position: absolute;
    z-index: 20;
    top: 100%;
    right: 0;
    bottom: auto;
    left: 0;
    width: 100%;
    height: calc(100dvh - var(--mobile-current-header-height));
    max-height: none;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  /* Hide the final raster edge of the transparent portrait on phones. */
  .hero__portrait-wrap {
    overflow: hidden;
  }

  .hero__portrait {
    bottom: -10px;
    clip-path: inset(0 0 5px 0);
  }

  /* Digital business card: purpose-built phone layout, desktop untouched. */
  #card-modal {
    align-items: end;
  }

  #card-modal .modal__panel--card {
    width: 100%;
    max-width: none;
    max-height: min(94dvh, 820px);
    padding: 30px 18px calc(22px + env(safe-area-inset-bottom, 0px));
    border-radius: 20px 20px 0 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  #card-modal .modal__close {
    position: sticky;
    z-index: 4;
    top: 0;
    float: right;
    margin-top: -14px;
    margin-right: -2px;
    margin-bottom: -42px;
    background: rgba(246, 249, 252, .96);
    box-shadow: 0 0 0 2px rgba(37, 175, 184, .28);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  #card-modal .digital-card__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 11px;
    margin-bottom: 16px;
    padding-right: 52px;
  }

  #card-modal .digital-card__logo {
    width: 104px;
    max-height: 32px;
  }

  #card-modal .digital-card__head h2 {
    margin: 0;
    padding: 0;
    font-size: clamp(23px, 6vw, 27px);
    line-height: 1.12;
    letter-spacing: -.03em;
  }

  #card-modal .digital-card__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  #card-modal .digital-card__portrait {
    width: 100%;
    height: clamp(176px, 27dvh, 224px);
    min-height: 0;
    border-radius: 14px;
    background:
      radial-gradient(circle at 72% 20%, rgba(37,175,184,.08), transparent 36%),
      var(--powder);
  }

  #card-modal .digital-card__portrait img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center bottom;
  }

  #card-modal .digital-card__details {
    display: grid;
    gap: 0;
    overflow: hidden;
    border: 1px solid rgba(22, 59, 113, .11);
    border-radius: 14px;
    background: #fff;
  }

  #card-modal .digital-card__field {
    gap: 2px;
    padding: 10px 13px;
    border-bottom: 1px solid rgba(22, 59, 113, .08);
  }

  #card-modal .digital-card__field span {
    font-size: 11px;
  }

  #card-modal .digital-card__field strong,
  #card-modal .digital-card__field a {
    min-width: 0;
    overflow-wrap: anywhere;
    font-size: 14px;
    line-height: 1.35;
  }

  #card-modal .digital-card__details > .button {
    width: calc(100% - 24px);
    min-height: 48px;
    margin: 12px;
  }

  /* A QR code has little utility on the same phone displaying it. */
  #card-modal .digital-card__qr {
    display: none;
  }

  /* Accordion arrow circle stays centered even for two-line labels. */
  .accordion-item__button {
    align-items: center;
  }

  .accordion-item__button > span {
    align-self: center;
    margin-block: auto;
  }
}

@media (max-width: 380px) {
  #card-modal .modal__panel--card {
    padding-inline: 15px;
  }

  #card-modal .digital-card__portrait {
    height: 170px;
  }

  #card-modal .digital-card__head h2 {
    font-size: 22px;
  }
}