:root {
  --primary-brand: #6a75c0;
  --primary-brand-hero-banner: #6a75c081;
  --primary-dark: #16234e;
  --background-light: #dcdff0;
  --text-dark: #181d3a;
  --text-primary: #1a224d;
  --text-light: #ffffff;
  --font-family: Montserrat, sans-serif;
}

body {
  font-family: var(--font-family);
  padding-top: 120px;
  background-color: #6a75c033;
}

ul,
ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

h2,
h3,
h4,
h5,
h6 {
  color: var(--text-dark);
  margin: 0 0 20px 0;
}

/* h2 {
  margin: 20px;
} */

p {
  color: var(--text-primary);
  margin: 0;
}

section {
  scroll-margin-top: 120px;
  padding: 30px 0;
}

.container {
  width: 100%;
  padding-left: 15px;
  padding-right: 15px;
  margin: 0 auto;
}

@media screen and (min-width: 1158px) {
  .container {
    max-width: 1158px;
  }
}

@media screen and (min-width: 768px) and (max-width: 1157px) {
  .container {
    max-width: 766px;
  }
}

@media screen and (min-width: 320px) and (max-width: 767px) {
  .container {
    max-width: 315px;
  }
}

/* -------------------------------------HEADER------------------------------------- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--primary-brand);
  z-index: 1000;
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.2);
  padding-top: 20px;
  padding-bottom: 20px;
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
}

.nav__link {
  text-decoration: none;
  color: var(--text-light);
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
  padding: 40px 0;
  transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

.header__shape {
  background-color: var(--primary-brand);
}

.header img {
  display: block;
}

.header h2 {
  color: #fff;
  font-weight: 700;
  font-size: 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Burger */
.burger {
  display: none;
  background: none;
  border: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.burger span {
  width: 28px;
  height: 3px;
  background-color: #fff;
  transition: 0.3s;
}

/* Анімація */
.burger.open span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.burger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background-color: var(--primary-brand);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  padding-top: 120px;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu__list {
  list-style: none;
  text-align: center;
}

.mobile-menu__list li {
  margin-bottom: 24px;
}

.mobile-menu__list a {
  font-size: 22px;
  color: var(--text-light);
  text-decoration: none;
}

/* Адаптив */
@media (max-width: 992px) {
  .nav {
    display: none;
  }

  .burger {
    display: flex;
  }
}

.mobile-menu__close {
  position: absolute;
  top: 50px;
  right: 35px;
  background: none;
  border: none;
  font-size: 32px;
  color: var(--text-light);
  cursor: pointer;
}

/* ---------- Language Switch ---------- */

.lang-switch {
  position: absolute;
  top: 10px;
  right: 20px;

  display: flex;
  gap: 8px;
  z-index: 1010;
}

.lang-btn {
  padding: 6px 10px;
  border: 1px solid #fff;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  transition: 0.3s;
  transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-btn:hover {
  background: #fff;
  color: var(--primary-brand);
}

.lang-btn.active {
  background: #fff;
  color: var(--primary-brand);
}

/*-------------------------------------HERO------------------------------------*/

.hero {
  background-color: var(--primary-brand);
  color: var(--text-light);
  /* padding: 60px 0; */
  text-align: center;
  background-image:
    linear-gradient(
      var(--primary-brand-hero-banner),
      var(--primary-brand-hero-banner)
    ),
    url(../images/hero-banner.webp);
  background-size: cover, 1440px;
  background-repeat: no-repeat, no-repeat;
  background-size: cover, cover;
  background-position: center, center;
  margin-top: 50px;
  min-height: 300px;
}

h1 {
  font-size: 48px;
  line-height: 1.11;
  letter-spacing: 0.02em;
  text-align: center;
  color: var(--white);
  text-shadow: 2px 2px 3px var(--text-dark);
  width: 800px;
  margin: 0 auto;
}

.main__text {
  font-size: 32px;
  line-height: 1.56;
  text-align: left;
  color: var(--white);
  margin-top: 24px;
  text-shadow: 2px 2px 3px var(--text-dark);
}

/*-------------------------------------ABOUT------------------------------------*/

.about-section {
  /* padding: 30px 0;
  margin: 30px 0; */
}

.about-section {
  background-color: var(--primary-dark);
  scroll-margin-top: 120px;
  /* padding-top: 20px;
  padding-bottom: 20px; */
}

.about-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.about-list li {
  position: relative;
}

.about-icon {
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  padding: 15px;
  margin-bottom: 22px;
}

.about-title {
  font-weight: 600;
  font-size: 18px;
  color: var(--white);
  margin-bottom: 18px;
}

.about-paragraf {
  font-weight: 400;
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--text-light);
  max-width: 308px;
}

@media screen and (min-width: 1166px) {
  .about-list li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 170px;
    background-color: var(--text-light);
    left: 315px;
    top: 50%;
    transform: translateY(-50%);
  }
}

/*-------------------------------------polygraph-development------------------------------------*/

.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  align-items: start;
}

.content-grid__left {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.polygraph-development_item {
  display: flex;
  margin-bottom: 24px;
  align-items: center;
}

.polygraph-development_item h3 {
  margin-bottom: 0;
}

.polygraph-development__img {
  margin-right: 24px;
}

.polygraph-development__title {
  margin-bottom: 20px;
  margin-top: 0;
  font-size: 24px;
  font-weight: 700;
}

/*-------------------------------------equipment------------------------------------*/

.equipment__item-name {
  font-weight: 700;
}

.equipment {
  flex: 1 1 50%;
}

.equipment__title {
  margin: 20px 0;
}

/*-------------------------------------services------------------------------------*/
.services {
  /* padding: 0 20px; */
  border-radius: 8px;
  flex: 1 1 45%;
  /* width: 570px; */
}

.services__title {
  margin-left: 15px;
}

.services__category-container {
  background-color: var(--primary-brand);
  /* min-height: 100px; */
  padding: 10px;
  border-left: 7px solid var(--text-dark);
  margin-bottom: 20px;
}

.services__category-title {
  color: var(--text-light);
  margin: 0;
}

.services__list {
  margin-left: 15px;
  list-style: disc;
  margin-bottom: 20px;
}

.services__item {
  margin-left: 15px;
}

/*-------------------------------------gallery------------------------------------*/
/* .gallery-section .approach-section-title {
  margin-bottom: 0;
} */

#gallery {
  position: relative;
  overflow: hidden;
  padding: 0;
}

#gallery .carousel {
  position: relative;
  width: 100%;
  max-width: 950px;
  height: 450px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  perspective: 1600px;
}

/* слайд-картка */
#gallery .slide {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 520px;
  height: 360px;
  transform-style: preserve-3d;
  transform-origin: center center;
  transition:
    transform 0.6s ease,
    opacity 0.6s ease;
}

/* картинка */
.slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
  box-shadow:
    0 20px 20px rgba(0, 0, 0, 0.35),
    0 6px 12px rgba(0, 0, 0, 0.25);
}

.slide-img-vertical {
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.35),
    0 6px 12px rgba(0, 0, 0, 0.25);
  margin-left: auto;
  margin-right: auto;
  display: block;
}

/* затемнення бокових */
#gallery .slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 14px;
  transition: opacity 0.4s ease;
}

#gallery .slide.active::after {
  opacity: 0;
}

/* ===== ARROWS ===== */

.gallery-section {
  position: relative;
}

.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  transition: 0.3s ease;
  transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-arrow:hover {
  transform: translateY(-50%) scale(1.1);
}

.gallery-arrow--left {
  left: -70px;
}

.gallery-arrow--right {
  right: -70px;
}

/*-------------------------------------FOOTER------------------------------------*/
footer {
  background-color: var(--text-dark);
  padding: 20px;
}

.footer-wrapper {
  background-color: var(--primary-brand);
  width: 300px;
  text-align: center;
  padding: 20px;
}

.footer-wrapper_title {
  color: var(--text-light);
  margin: 0;
}

/*-------------------------------------contact------------------------------------*/

.contact-wrap .container {
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: space-between;
}

.contact-massenger ul {
  display: flex;
  gap: 9px;
  margin-right: auto;
  justify-content: center;
}

.contact-massenger ul li {
  border-radius: 50%;
  padding: 5px;
  box-shadow:
    0 2px 1px 0 rgba(46, 47, 66, 0.08),
    0 1px 1px 0 rgba(46, 47, 66, 0.16),
    0 1px 6px 0 rgba(46, 47, 66, 0.08);
  background-color: var(--primary-brand);
  transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-massenger ul li:hover {
  background-color: var(--background-light);
  cursor: pointer;
}

.contact-phone,
.footer-address {
  text-decoration: none;
  display: block;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.71;
  letter-spacing: 0.03em;
  text-align: right;
  font-style: normal;
  color: var(--text-light);
  transition:
    color 250ms cubic-bezier(0.4, 0, 0.2, 1),
    background-color 250ms cubic-bezier(0.4, 0, 0.2, 1),
    transform 150ms ease;
  border-radius: 8px;
  padding: 10px;
  transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-phone {
  margin-bottom: 10px;
}

.contact-phone:hover,
.footer-address:hover {
  background-color: var(--primary-brand);
  color: var(--text-light);
  transform: scale(1.05);
  cursor: pointer;
}

.contact-wrap .container,
.contact-phone_wrapper,
.contact-address_wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-phone__icon,
.contact-address__icon {
  fill: #fff;
}

/*-------------------------------------approach------------------------------------*/
/* .approach-section {
  padding-top: 30px;
  padding-bottom: 30px;
} */

.approach-section-flex {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.approach-section-title {
  margin-bottom: 32px;
  text-align: center;
}

.approach-title {
  color: var(--orange);
}

.approach-tablet {
  display: none;
}

.approach-mobile {
  width: 335px;
  margin-bottom: 20px;
}

.approach-section-wrap {
  padding: 20px;
  border-radius: 15px;
  background: #ffffff73;
}

.approach-section-wrap .approach-third-title {
  width: 307px;
  margin-bottom: 20px;
  margin-top: 0;
}

.approach-third-title {
  font-weight: 600;
  font-size: 18px;
  line-height: 24px;
  color: var(--black);
}

.approach-paragraf {
  font-weight: 400;
  font-size: 14px;
  line-height: 18px;
  letter-spacing: -0.02em;
  color: var(--black);
}

.approach-img {
  border-radius: 15px;
  margin: auto 0;
}

.approach-item {
  max-width: 500px;
  margin-bottom: 18px;
}

.approach-item:last-child {
  margin-bottom: 0;
}

/*-------------------------------------confidentiality------------------------------------*/
/* .confidentiality-section {
  padding-top: 30px;
  padding-bottom: 30px;
} */

.confidentiality-section-flex {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.confidentiality-section-title {
  margin-bottom: 32px;
  text-align: center;
}

.confidentiality-title {
  color: var(--orange);
}

.confidentiality-tablet {
  display: none;
}

.confidentiality-mobile {
  width: 335px;
  margin-bottom: 20px;
}

.confidentiality-section-wrap {
  padding: 20px;
  border-radius: 15px;
  background: #ffffff73;
}

.confidentiality-section-wrap .confidentiality-third-title {
  width: 307px;
  margin-bottom: 20px;
  margin-top: 0;
}

.confidentiality-third-title {
  font-weight: 600;
  font-size: 18px;
  line-height: 24px;
  color: var(--black);
}

.confidentiality-paragraf {
  font-weight: 400;
  font-size: 14px;
  line-height: 18px;
  letter-spacing: -0.02em;
  color: var(--black);
}

.confidentiality-img {
  border-radius: 15px;
  margin: auto 0;
}

.confidentiality-img-mobile {
  display: none;
}

.confidentiality-item {
  max-width: 500px;
  margin-bottom: 18px;
}

.confidentiality-item:last-child {
  margin-bottom: 0;
}

/*-------------------------------------clients------------------------------------*/
/* .clients-section,
.mission-section {
  padding-top: 30px;
  padding-bottom: 30px;
} */

.clients-section-flex {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.clients-section-title {
  margin-bottom: 32px;
  text-align: center;
}

.clients-title {
  color: var(--orange);
}

.clients-tablet {
  display: none;
}

.clients-mobile {
  width: 335px;
  margin-bottom: 20px;
}

.clients-section-wrap {
  padding: 20px;
  border-radius: 15px;
  background: #ffffff73;
}

.clients-section-wrap .clients-third-title {
  width: 307px;
  margin-bottom: 20px;
  margin-top: 0;
}

.clients-third-title {
  font-weight: 600;
  font-size: 18px;
  line-height: 24px;
  color: var(--black);
}

.clients-paragraf {
  font-weight: 400;
  font-size: 14px;
  line-height: 18px;
  letter-spacing: -0.02em;
  color: var(--black);
}

.clients-img {
  border-radius: 15px;
  margin: auto 0;
}

.clients-item {
  max-width: 500px;
  margin-bottom: 18px;
}

.clients-item:last-child {
  margin-bottom: 0;
}

/*-------------------------------------mission------------------------------------*/
.mission-img {
  border-radius: 15px;
  display: block;
  margin: 0 auto 20px auto;
}

.mission-text {
  font-weight: 600;
  font-size: 18px;
  line-height: 24px;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0 auto;
  text-align: justify;
}

/*-------------------------------------call button------------------------------------*/
.call-btn {
  position: fixed;
  right: 30px;
  bottom: 130px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background-color: var(--primary-brand);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  letter-spacing: 0.3px;
  box-shadow: 0 4px 15px rgba(22, 35, 78, 0.3);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease,
    background-color 0.3s ease;
  animation: pulse 2s infinite;
  z-index: 2000;
  border: 2px solid #fff;
  transition: color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.call-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(22, 35, 78, 0.5);
  background-color: #5f6892;
  transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.call-btn__icon {
  font-size: 22px;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(127, 136, 169, 0.6);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(127, 136, 169, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(127, 136, 169, 0);
  }
}

@media (max-width: 768px) {
  .call-btn {
    right: 20px;
    bottom: 20px;
    padding: 16px 24px;
    font-size: 16px;
  }
}

/* -------------------------------------TABLET VERSION------------------------------------- */
@media screen and (min-width: 768px) and (max-width: 1157px) {
  body {
    padding-top: 100px;
  }

  .hero h1 {
    font-size: 36px;
    line-height: 1.2;
    text-align: center;
  }

  .main__text {
    font-size: 24px;
    text-align: center;
  }

  .about-list {
    gap: 15px;
  }

  .about-paragraf {
    max-width: 220px;
    font-size: 15px;
  }

  .content-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .services {
    width: 100%;
    flex: 1 1 100%;
    padding: 15px;
  }

  .approach-mobile,
  .confidentiality-mobile,
  .clients-mobile {
    width: 100%;
    margin-bottom: 18px;
  }

  .call-btn {
    bottom: 110px;
    right: 20px;
  }

  .footer-address {
    width: 250px;
    padding: 0;
  }

  .contact-phone {
    padding: 0;
  }

  .confidentiality-img {
    display: none;
  }

  .confidentiality-img-mobile {
    display: block;
  }
}

/* -------------------------------------MOBILE VERSION------------------------------------- */
@media screen and (max-width: 767px) {
  body {
    padding-top: 80px;
  }

  .header_container {
    display: flex;
    justify-content: space-between;
  }

  .hero {
    padding: 40px 10px;
    background-size: cover;
  }

  .hero h1 {
    font-size: 28px;
    line-height: 1.2;
    text-align: center;
    width: 300px;
  }

  .main__text {
    font-size: 18px;
    text-align: center;
  }

  .polygraph-development__title {
    font-size: 22px;
  }

  .about-list {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }

  .about-paragraf {
    max-width: 300px;
    font-size: 14px;
    text-align: center;
  }

  .content-grid {
    display: block;
  }

  .services {
    width: 100%;
    flex: 1 1 100%;
    padding: 10px;
  }

  .approach-mobile,
  .confidentiality-mobile,
  .clients-mobile {
    width: 100%;
    margin-bottom: 15px;
  }

  .approach-img,
  .confidentiality-img,
  .clients-img,
  .confidentiality-img-mobile {
    width: 300px;
    height: auto;
    border-radius: 15px;
  }

  .confidentiality-img {
    display: none;
  }

  .confidentiality-img-mobile {
    display: block;
  }

  .mission-img {
    width: 300px;
    height: auto;
  }

  .call-btn {
    bottom: 160px;
    right: 15px;
    padding: 14px 20px;
    font-size: 14px;
  }

  .contact-wrap .container {
    display: block;
  }

  .contact-phone,
  .footer-address {
    text-align: center;
  }

  .contact-wrap .container,
  .contact-phone_wrapper,
  .contact-address_wrapper {
    display: block;
  }

  .footer-wrapper {
    background-color: transparent;
    margin: 0;
  }

  .footer-wrapper h2 {
    margin: 0;
  }

  .contact-phone,
  .footer-address {
    padding: 0;
  }

  .contact-phone {
    margin-bottom: 10px;
    margin-top: 10px;
  }

  footer {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .call-btn__text {
    display: none;
  }

  #gallery .carousel {
    height: 360px;
    perspective: none;
  }

  #gallery .slide {
    width: 90%;
    height: 260px;
  }

  #gallery .slide {
    transform: translate(-50%, -50%) !important;
    opacity: 0 !important;
  }

  #gallery .slide.active {
    opacity: 1 !important;
    z-index: 10;
  }

  .gallery-arrow--left {
    left: 10px;
  }

  .gallery-arrow--right {
    right: 10px;
  }

  .contact-massenger ul {
    margin-bottom: 10px;
  }
}

.seo-hidden {
  position: absolute;
  left: -9999px;
  top: -9999px;
  height: 1px;
  width: 1px;
  overflow: hidden;
}