html {
  box-sizing: border-box;
}

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

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

img {
  max-width: 100%;
}

@font-face {
  font-family: 'Sora';
  src: local('Sora-Regular'),
    url('../fonts/Sora-Regular.woff2'),
    url('../fonts/Sora-Regular.woff');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: local('Sora-SemiBold'),
    url('../fonts/Sora-SemiBold.woff2'),
    url('../fonts/Sora-SemiBold.woff');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: local('Sora-Light'),
    url('../fonts/Sora-Light.woff2'),
    url('../fonts/Sora-Light.woff');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Sora';
  src: local('Sora-Bold'),
    url('../fonts/Sora-Bold.woff2'),
    url('../fonts/Sora-Bold.woff');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

body {
  background-image: url('../img/main-bg.png');
  background-repeat: no-repeat;
  background-color: #101015;
  background-position: center;
  background-size: contain;
  font-family: 'Sora', sans-serif;
}

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

:root {
  --white: #FFFFFF;
  --blue: #4A7BAF;
  --back: #000000;
}

/* glob */
.list-reset {
  margin: 0;
  padding: 0;
  list-style: none;
}

.btn {
  background-color: transparent;
  outline: none;
  border: none;
  cursor: pointer;
}

/* header */
.header {
  display: none;
}

.header__social {
  display: flex;
  gap: 15px;
}

.offcanvas {
  align-items: center;
  background-color: #101015;
  background-image: url('../img/smoke-bg.png');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.offcanvas-title {
  font-weight: 700;
  font-size: 22px;
  color: var(--blue);
}

.offcanvas-header {
  width: 100%;
}

#mobileMenu .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

.navbar-nav {
  row-gap: 20px;
  align-items: center;
}

.navbar-nav .nav-item {
  padding: 10px 20px;
  background-color: #21212c;
  border-radius: 15px;
  box-shadow: 0px 25px 20px 0px #000000;
}

.navbar-nav .nav-link {
  font-weight: 550;
  font-size: 18px;
  color: var(--white);
}

/* hero */
.hero {
  padding-top: 58px;
  padding-bottom: 44px;
  background-image: url("../img/main-bg.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

.hero__row {
  padding-left: 80px;
}

.hero__block-left {
  padding-top: 200px;
}

.hero__title {
  margin-bottom: 0;
  font-weight: 500;
  font-size: 50px;
  line-height: 124%;
  color: var(--white);
}

.hero__subtitle {
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 35px;
  line-height: 114%;
  color: var(--white);
}

.hero__descr {
  margin-bottom: 23px;
  font-weight: 300;
  font-size: 20px;
  line-height: 175%;
  color: var(--white);
}

.hero__btn {
  padding: 16px 16px 16px 32px;
  font-weight: 500;
  font-size: 20px;
  line-height: 101%;
  color: var(--back);
  background: linear-gradient(267.01deg, #A4C8E1 0%, #6EA8DA 50.52%, #4A7BAF 100%);
  border-radius: 57px;
  box-shadow: 0px 0px 22px 0px #6EA8DA;
}

.hero__btn-link {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero__btn-link > svg {
  fill: black;
}

.hero__btn-link > svg > g > path {
  fill: white;
}

.hero__btn:focus-visible {
  outline-offset: 5px;
  outline: 2px solid #4A7BAF;
}

.hero__btn:hover:not(:focus-visible) {
  background: linear-gradient(267.01deg, #d3dce2 0%, #91b2cf 50.52%, #6787af 100%);
}

.hero__btn:hover svg {
  fill: white;
}

.hero__btn:hover svg path {
  fill: black;
}

.hero__btn:active:not(:focus-visible) {
  background: linear-gradient(267.01deg, #73b2df 0%, #318cdb 50.52%, #0f5caf 100%);
}

.hero__btn-mobile {
  display: none;
}

.hero__block-right {
  position: relative;
}

.block__right-info {
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  bottom: 25%;
  left: 195px;
  max-width: 280px;
  min-height: 80px;
  padding: 20px 24px 16px 24px;
  border: 2px solid #4A7BAF;
  border-radius: 16px;
  background-color: rgba(33, 33, 33, 0.88);
}

.block__info-name {
  margin-bottom: 4px;
  font-weight: 550;
  font-size: 22px;
  line-height: 101%;
  color: var(--white);
}

.block__info-descr {
  margin-bottom: 0;
  font-weight: 400;
  font-size: 18px;
  line-height: 156%;
  color: var(--blue);
}

.block__right-img{
  width: 475px;
  float: right;
}

/* about */
.about {
  padding-top: 76px;
  padding-bottom: 76px;
}

.about__block-left {
  display: flex;
  align-items: center;
  min-height: 294px;
  padding-right: 70px;
  background-image: url('../img/stick.png');
  background-repeat: no-repeat;
  background-size: 5px 294px;
  background-position: right;
}

.about__block-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 294px;
  padding-left: 83px;
}

.about__title {
  margin-bottom: 0;
  font-weight: 500;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
}

.about__subtitle {
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 29px;
  line-height: 134%;
  color: var(--white);
}

.about__descr {
  font-weight: 400;
  font-size: 18px;
  line-height: 156%;
  color: var(--white);
}

.about__descr-1 {
  margin-bottom: 8px;
}

.about__descr-2 {
  margin-bottom: 0;
}

/* video */
.video {
  padding-top: 100px;
  padding-bottom: 76px;
  background-image: url('../img/smoke-bg.png');
  background-position: center;
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

.video__container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.video__title {
  margin-bottom: 31px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
  text-align: center;
}

.video__row {
  width: 100%;
  display: flex;
  justify-content: center;
}

.video__block {
  display: flex;
  justify-content: center;
  min-height: 474px;
  background-image: url('../img/video-bg.png');
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
}

.video__block > video {
  min-height: 474px;
  max-width: 997px;
  border-radius: 20px;
}

.video__block > .video__btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-image: url('../img/play_button.png');
  background-size: contain;
  background-repeat: no-repeat;
  height: 182px;
  width: 182px;
  z-index: 3;
}

/* diversification */
.diversification {
  padding-bottom: 76px;
}

.diversification__container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.diversification__title {
  margin-bottom: 32px;
  font-weight: 600;
  font-size: 36px;
  line-height: 124%;
  text-align: center;
  color: var(--white);
}

.diversification__list {
  display: flex;
  justify-content: center;
  gap: 20px;
  width: 100%;
}

.diversification__item {
  position: relative;
  min-height: 155px;
  width: 15%;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  background-color: #212121;
  border-radius: 20px;
}

.diversification__item:nth-child(1) {
  width: 30%;
  background: linear-gradient(267.01deg, #4A7BAF 0%, #6EA8DA 50.52%, #4A7BAF 100%);
}

.diversification__item:not(:first-child)::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  background: radial-gradient(circle at 1.64% 2.46%, #4A7BAF 0%, rgba(0, 0, 0, 0) 100%),
    radial-gradient(circle at 100% 100%, #6EA8DA 0%, rgba(0, 0, 0, 0) 100%);
  z-index: -1;
  border-radius: 20px;
}

.diversification__item .item__content {
  width: 100%;
}

.diversification__item > .item__strong {
  font-weight: 500;
  font-size: 30px;
  line-height: 100%;
  color: var(--white);
}

.diversification__item:first-child .item__strong {
  font-size: 60px;
}

.diversification__item > .item__descr {
  font-weight: 400;
  font-size: 16px;
  line-height: 130%;
  color: var(--white);
  text-align: center;
}

.diversification__item:nth-child(1)>.item__strong {
  color: var(--back);
}

.diversification__item:nth-child(1)>.item__descr {
  color: var(--back);
}

/* clients */
.clients {
  padding-top: 76px;
  padding-bottom: 76px;
}

.clients__title {
  margin-bottom: 70px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
  text-align: center;
}

.clients__block-animation {
  overflow-x: hidden;
}

.clients__list {
  display: flex;
  max-height: 100px;
  gap: 20px;
  width: max-content;
  animation: marqueeAnimation 50s linear infinite;
}

.clients__list:hover {
  animation-play-state: paused;
}

@keyframes marqueeAnimation {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); } 
}

.clients__item {
  width: 120px;
  display: flex;
  align-items: center;
  border-radius: 20px;
}

.clients__item img {
  border-radius: 20px;
  display: block;
  width: 100%;
  height: 100%;
}

/* cases */
.cases {
  padding-top: 76px;
  padding-bottom: 76px;
}

.cases__title {
  margin-bottom: 70px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
  text-align: center;
}

.cases__swiper {
  position: relative;
}

.cases__item {
  border: 2px solid var(--blue);
  border-radius: 22px;
}

.cases__item > img {
  border-radius: 20px;
}


.swiper-slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.swiper-scrollbar {
  background-color: var(--white);
}

.swiper-scrollbar-drag {
  background-color: #007aff;
  border-radius: 10px;
}

/* registration */
.registration {
  position: relative;
  padding-top: 76px;
  padding-bottom: 76px;
}

.registration__container {
  background-image: url('../img/form-bg.png');
  background-size: 100%; 
  background-repeat: no-repeat;
  background-position-x: center;
  background-position-y: 40%;
}

.registration__row {
  min-height: 677px;
  display: flex;
  align-items: center;
}

.registration__block-left {
  padding: 41px 33px 48px 55px;
}

.registration__form {
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
  background-color: var(--white);
  border-radius: 24px;
}

.registration__form > .form__title {
  margin-bottom: 6px;
  font-weight: 400;
  font-size: 26px;
  line-height: 126%;
  color: var(--back);
  text-align: center;
}

.form__descr {
  margin-bottom: 29px;
  font-weight: 400;
  font-size: 18px;
  line-height: 126%;
  color: var(--back);
  text-align: center;
}

.registration__form > .input-block {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.registration__form > .input-block > .form__input {
  width: 100%;
  outline: none;
  padding: 20px 24px;
  border: 1px solid #EAEAEA;
  border-radius: 12px;
  color: var(--back);
  font-weight: 600;
}

.registration__form > .input-block > .form__input:focus {
  outline-offset: 5px;
  outline: 2px solid #4A7BAF;
}

.form__input::placeholder {
  font-weight: 400;
  font-size: 16px;
  line-height: 126%;
  color: #10101580;
}

.registration__form > .form__btn {
  font-weight: 550;
  font-size: 18px;
  padding: 24px 55px;
  line-height: 101%;
  color: var(--back);
  background: linear-gradient(267.01deg, #4A7BAF 0%, #6EA8DA 50.52%, #4A7BAF 100%);
  border-radius: 57px;
}

.registration__form > .form__btn:focus-visible {
  outline-offset: 5px;
  outline: 2px solid #4A7BAF;
}

.registration__form > .form__btn:hover:not(:focus-visible) {
  background: linear-gradient(267.01deg, #6b88a8 0%, #a0bed8 50.52%, #6b88a8 100%)
}

.registration__form > .form__btn:active:not(:focus-visible) {
  background: linear-gradient(267.01deg, #2769b1 0%, #4b95d6 50.52%, #2769b1 100%);
}

.registration__block-right {
  min-height: 320px;
  padding-right: 150px;
  background-image: url('../img/Vector.png');
  background-repeat: no-repeat;
  background-position: 20px 230px;
  background-size: 306px 90px;
}

.registration__title {
  margin-bottom: 12px;
  font-weight: 500;
  font-size: 36px;
  line-height: 124%;
  color: var(--back);
  text-align: left;
}

.registration__descr {
  font-weight: 400;
  font-size: 18px;
  line-height: 160%;
  color: var(--back);
}


/* reviews */
.reviews {
  padding-top: 76px;
  padding-bottom: 76px;
  background-image: url('../img/vector-bg.png');
  background-size: contain;
  background-position: center;
}

.reviews__title {
  margin-bottom: 70px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
  text-align: center;
}

.reviews__swiper {
  position: relative;
}

.swiper-button-prev,
.swiper-button-next {
  padding: 0;
  color: var(--blue);
}

.swiper-button-prev:hover,
.swiper-button-next:hover {
  color: rgb(131, 171, 231);
}

.reviews__item img {
  border-radius: 20px;
}

.reviews__item {
  border: 2px solid var(--blue);
  border-radius: 20px;
}

/* advantages */
.advantages {
  position: relative;
  padding-top: 76px;
  padding-bottom: 76px;
  background-image: url('../img/vector-bg.png');
  background-size: contain;
  background-position: center;
}

.advantages::before {
  position: absolute;
  content: '';
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../img/smoke-bg.png');
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
}

.advantages__block-text {
  margin-bottom: 128px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.advantages__title {
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
  text-align: center;
  z-index: 1;
}

.advantages__descr {
  text-align: center;
  font-weight: 400;
  line-height: 160%;
  color: var(--white);
  z-index: 1;
}

.advantages__descr-1 {
  margin-bottom: 12px;
  font-size: 22px;
}

.advantages__descr-2 {
  margin-bottom: 48px;
  font-size: 18px;
}

.advantages__btn {
  width: fit-content;
  font-weight: 550;
  font-size: 24px;
  line-height: 101%;
  padding: 32px 48px;
  background: linear-gradient(267.01deg, #4A7BAF 0%, #6EA8DA 50.52%, #4A7BAF 100%);
  border-radius: 57px;
  color: var(--back);
  box-shadow: 0px 0px 22px 0px #6EA8DA;
  z-index: 1;
}

.advantages__btn:focus-visible {
  outline: 2px solid #4A7BAF;
  outline-offset: 5px;
}

.advantages__btn:hover:not(:focus-visible) {
  background: linear-gradient(267.01deg, #6b88a8 0%, #a0bed8 50.52%, #6b88a8 100%)
}

.advantages__btn:active:not(:focus-visible) {
  background: linear-gradient(267.01deg, #2769b1 0%, #4b95d6 50.52%, #2769b1 100%);
}

.advantages__list {
  padding-bottom: 143px;
  display: flex;
  justify-content: center;
  row-gap: 90px;
}

.advantages__item {
  position: relative;
}

.advantages__item::after {
  position: absolute;
  content: '';
  top: -45px;
  left: 40%;
  right: 0;
  bottom: 0;
  background-image: url('../img/advantages-item-bg.png');
  background-repeat: no-repeat;
}

.advantages__item-block {
  position: relative;
  min-height: 170px;
  padding: 40px 20px 20px 20px;
  background-color: #212121;
  border-radius: 20px;
  box-shadow: 0px 15px 45px 0px #000000;
}

.advantages__item-block::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  background: radial-gradient(circle at 1.64% 2.46%, #4A7BAF 0%, rgba(0, 0, 0, 0) 100%),
              radial-gradient(circle at 100% 100%, #6EA8DA 0%, rgba(0, 0, 0, 0) 100%);
  z-index: -1;
  border-radius: 20px;
}

.advantages__item-block > .item__descr {
  font-weight: 400;
  font-size: 18px;
  line-height: 25.5px;
  text-align: center;
  color: var(--white);
}

.advantages__block-form {
  position: relative;
}

.advantages__form {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px;
  background-color: #212121;
  border-radius: 20px;
}

.advantages__form::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0) 0%, #6EA8DA 38.54%, #4A7BAF 50.31%, #6EA8DA 61.98%, rgba(0, 0, 0, 0) 100%),
              radial-gradient(24.61% 85.62% at 50% 0%, #4A7BAF 0%, rgba(0, 0, 0, 0) 100%);
  z-index: -1;
  border-radius: 20px;
}

.advantages__form > .form__title {
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  color: var(--white);
  text-align: center;
}

.advantages__form > .form__descr {
  margin-bottom: 24px;
  font-weight: 400;
  font-size: 24px;
  line-height: 160%;
  color: var(--white);
  text-align: center;
}

.advantages__form > .form__input-block {
  margin-bottom: 33px;
  display: flex;
  justify-content: center;
  gap: 17px;
}

.advantages__form > .form__input-block > .form__input {
  width: 100%;
  padding: 20px 24px;
  font-weight: 550;
  font-size: 16px;
  line-height: 126%;
  color: var(--back);
  outline: none;
  border: 1px solid #EAEAEA;
  border-radius: 12px;
}

.advantages__form > .form__input-block > .form__input:focus {
  outline: 2px solid #4A7BAF;
  outline-offset: 5px;
}

.advantages__form > .form__input-block > .form__input::placeholder {
  font-weight: 400;
  font-size: 16px;
  line-height: 126%;
  color: #10101580;
}

.advantages__form > .form__btn {
  width: fit-content;
  padding: 24px 45px;
  font-weight: 550;
  font-size: 18px;
  line-height: 101%;
  color: var(--back);
  background: linear-gradient(267.01deg, #4A7BAF 0%, #6EA8DA 50.52%, #4A7BAF 100%);
  border-radius: 57px;
  box-shadow: 0px 0px 22px 0px #6EA8DA;
}

.advantages__form > .form__btn:focus-visible {
  outline: 2px solid #4A7BAF;
  outline-offset: 5px;
}

.advantages__form > .form__btn:hover:not(:focus-visible) {
  background: linear-gradient(267.01deg, #6b88a8 0%, #a0bed8 50.52%, #6b88a8 100%)
}

.advantages__form > .form__btn:active:not(:focus-visible) {
  background: linear-gradient(267.01deg, #2769b1 0%, #4b95d6 50.52%, #2769b1 100%);
}

/* contact */
.contact {
  padding-top: 100px;
  padding-bottom: 170px;
  background-image: url('../img/contacts-bg.png');
}

.contact__title {
  margin-bottom: 100px;
  font-weight: 700;
  font-size: 36px;
  line-height: 124%;
  text-align: center;
  color: var(--white);
}

.contact__subtitle {
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 30px;
  line-height: 124%;
  color: var(--white);
}

.contact__descr {
  margin-bottom: 32px;
  font-weight: 500;
  font-size: 24px;
  line-height: 160%;
  color: var(--white);
}

.contact__list {
  display: flex;
  flex-direction: column;
  row-gap: 26px;
}

.contact__item > .item__content > .item__link {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 28px;
}

.contact__item > .item__content > .item__link > span, address {
  font-weight: 400;
  font-size: 24px;
  line-height: 25.5px;
  color: var(--white);
  transition: color 0.3s ease-in-out;
}

.contact__item > .item__content > .item__link:hover span,
.contact__item > .item__content > .item__link:hover address {
  color: #6EA8DA;
}

.contact__item > .item__content > .item__link:active span,
.contact__item > .item__content > .item__link:active address {
  color: #4A7BAF;
}

/* footer */
.footer {
  background-color: #000000;
}

.footer__container {
  min-height: 158px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__block-social {
  display: flex;
  gap: 24px;
}

.footer__social-link svg rect {
  stroke: #4A7BAF;
}

.footer__social-link:hover svg rect {
  stroke: #9abddb;
}

.footer__social-link:active svg rect {
  stroke: #1159a7;
}

.footer__social-link svg path {
  fill: #4A7BAF;
}

.footer__social-link:hover svg path {
  fill: #9abddb;
}

.footer__social-link:active svg path {
  fill: #1159a7;
}

.footer__social-link:last-child svg path {
  fill: #4A7BAF;
}

.footer__social-link:last-child:hover svg path {
  fill: #9abddb;
}

.footer__social-link:last-child:active svg path {
  fill: #1159a7;
}

.modal-window{
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;

  background-color: rgba(33, 33, 33, 0.8);
  justify-content: center;
}

.modal-window .registration__form{
  position: absolute;
  top: 50%;
  
  transform: translateY(-50%);
}

.modal-window .registration__form .closeButton{
  position: absolute;
  left: 15px;
  top: 15px;

  background-color: transparent;
  border-radius: 50%;
  border: none;
}