@font-face {
  font-family: "Roboto";
  src: local("Roboto Bold"), url("../fonts/Roboto-Bold.woff2") format("woff2"),
    url("../fonts/Roboto-Bold.woff") format("woff");
  font-weight: 700;
  font-style: normal;
}

@font-face {
  font-family: "Roboto";
  src: local("Roboto Medium"),
    url("../fonts/Roboto-Medium.woff2") format("woff2"),
    url("../fonts/Roboto-Medium.woff") format("woff");
  font-weight: 600;
  font-style: normal;
}

@font-face {
  font-family: "Roboto";
  src: local("Roboto Regular"),
    url("../fonts/Roboto-Regular.woff2") format("woff2"),
    url("../fonts/Roboto-Regular.woff") format("woff");
  font-weight: 500;
  font-style: normal;
}

@font-face {
  font-family: "Roboto";
  src: local("Roboto Light"), url("../fonts/Roboto-Light.woff2") format("woff2"),
    url("../fonts/Roboto-Light.woff") format("woff");
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: "Roboto";
  src: local("Roboto Thin"), url("../fonts/Roboto-Thin.woff2") format("woff2"),
    url("../fonts/Roboto-Thin.woff") format("woff");
  font-weight: 300;
  font-style: normal;
}

html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

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

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

img {
  max-width: 100%;
}

:root {
  --color-red: #9a0e05;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-light-blue: #e3f5fe;
  --color-grey: #454545;
  --color-blue: #004e94;
  --color-beige: #f7f7f5;
  --color-light-grey: #616161;
  --color-light-black: #242424;
}

/* ul */

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

/* button */

.btn-reset {
  padding: 0;
  border: none;
  background-color: transparent;
  cursor: pointer;
}

body {
  font-family: "Muller", sans-serif;
}

.container {
  margin: 0 auto;
}

.tittle {
  margin: 0;
  font-weight: 700;
  font-size: 47px;
  line-height: 150%;
}

.text {
  margin: 0;
  font-weight: 400;
  font-size: 16px;
  line-height: 170%;
}

/* header */

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding-top: 30px;
  padding-bottom: 30px;
}

.header__btn-burger {
  display: none;
}

.header__logo-nav {
  display: none;
  position: relative;
}

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

.nav__item {
  margin-right: 51px;
  font-weight: 400;
  font-size: 16px;
  line-height: 19px;
  color: var(--color-black);
}

.nav__link {
  position: relative;
  padding: 10px 0px;
  transition: color 0.3s ease-in-out;
}

.nav__link:before {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--color-red);
  left: 0;
  bottom: 0;
  transition: 0.3s;
  transform: scale(0);
  transform-origin: center;
}

.nav__link:hover:before {
  transform: scale(1);
}

.nav__link:active {
  color: var(--color-red);
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-red);
  outline-offset: 5px;
}

.nav__item:nth-last-child(2) {
  margin-right: 0;
}

.nav__btn {
  display: none;
}

.header__btn {
  padding: 18px 53px;
  background-color: var(--color-red);
  border-radius: 10px;
  color: var(--color-white);
  font-weight: 500;
  font-size: 18px;
  line-height: 21px;
  transition: background-color 0.3s ease-in-out;
}

.header__btn:focus {
  background-color: var(--color-red);
}

.header__btn:hover {
  background-color: var(--color-black);
}

.header__btn:active {
  background-color: var(--color-grey);
}

/* hero */

.hero {
  margin: 0 auto;
  margin-bottom: 120px;
  max-width: 1546px;
  background-color: var(--color-light-blue);
  border-radius: 20px;
}

.hero__container {
  padding-top: 60px;
  padding-bottom: 60px;
  min-height: 690px;
}

.hero__wrapper-content {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
}

.hero__wrapper-content::before {
  content: "";
  position: absolute;
  top: 0;
  right: -100%;
  bottom: 0;
  left: 102.5%;
  background-image: url(../img/hero.png);
  background-size: contain;
  background-repeat: no-repeat;
}

.wrapper-content__span {
  font-weight: 400;
  font-size: 16px;
  line-height: 170%;
  color: var(--color-black);
}

.wrapper-content__span:nth-child(1) {
  margin-bottom: 30px;
}

.wrapper-content__tittle {
  margin: 0;
  margin-bottom: 30px;
  font-weight: 700;
  font-size: 61px;
  line-height: 110%;
  color: var(--color-black);
}

.wrapper-content__text {
  margin: 0;
  margin-bottom: 30px;
  max-width: 85%;
  font-weight: 400;
  font-size: 18.5px;
  line-height: 170%;
  color: var(--color-black);
}

/* about */

.about {
  margin-bottom: 150px;
}

.about__tittle {
  margin-bottom: 56px;
}

.about__text {
  margin-bottom: 98px;
  max-width: 70%;
  font-size: 17px;
  line-height: 180%;
}

.list-content__item {
  position: relative;
  display: flex;
  flex-direction: column;
  padding-left: 0;
  padding-right: 0;
  padding-top: 135px;
  min-height: 260px;
}

.list-content__item:after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.about__container .about__list .list-content__item:nth-child(1):after {
  background-image: url(../img/about-one.svg);
  background-repeat: no-repeat;
}

.about__container .about__list .list-content__item:nth-child(2):after {
  background-image: url(../img/about-two.svg);
  background-repeat: no-repeat;
}

.about__container .about__list .list-content__item:nth-child(3):after {
  background-image: url(../img/about-three.svg);
  background-repeat: no-repeat;
}

.list-content__tittle {
  margin: 0;
  margin-bottom: 13px;
  font-weight: 700;
  font-size: 19.3px;
  line-height: 170%;
  color: var(--color-black);
}

.list-content__text {
  margin: 0;
  font-weight: 400;
  font-size: 16px;
  line-height: 170%;
  color: var(--color-black);
}

/* focus */

.focus {
  margin-bottom: 200px;
}

.focus__wrapper-left {
  padding-top: 15px;
  padding-left: 0;
}

.wrapper-left__h3 {
  margin: 0;
  max-width: 94%;
  margin-bottom: 35px;
  font-weight: 700;
  font-size: 31px;
  line-height: 157%;
  color: var(--color-black);
}

.wrapper-left__item {
  position: relative;
  padding-top: 15px;
  padding-bottom: 15px;
  padding-left: 54px;
  margin-bottom: 20px;
}

.wrapper-left__item:nth-last-child(1) {
  margin-bottom: 0;
}

.wrapper-left__item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: url(../img/focus-vector.svg);
  background-repeat: no-repeat;
  background-position: left;
}

.wrapper-left__h4 {
  margin: 0;
  max-width: 82%;
  font-weight: 400;
  font-size: 18px;
  line-height: 170%;
  color: var(--color-black);
}

.focus__wrapper-right {
  padding-top: 14px;
  padding-right: 0;
}

.wrapper-right__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

/* materials */

.materials {
  margin-bottom: 200px;
}

.materials__tittle-h3 {
  margin: 0;
  margin-bottom: 50px;
  padding-left: 0;
  font-weight: 700;
  font-size: 30px;
  line-height: 150%;
  color: var(--color-black);
}

.materials__content-right {
  padding-top: 73px;
}

.content-right__item {
  position: relative;
  margin-bottom: 17px;
  padding-top: 15px;
  padding-left: 54px;
  padding-bottom: 15px;
}

.content-right__item:nth-last-child(1) {
  margin-bottom: 0;
}

.content-right__item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: url(../img/focus-vector.svg);
  background-repeat: no-repeat;
  background-position: left;
}

.content-right__tittle-h4 {
  margin: 0;
  font-weight: 400;
  font-size: 18.7px;
  line-height: 170%;
}

/* participate */

.participate {
  margin-bottom: 200px;
}

.participate__tittle-h3 {
  margin: 0;
  margin-bottom: 100px;
  font-weight: 700;
  font-size: 30.6px;
  line-height: 150%;
  color: var(--color-black);
}

.list-content__item {
  position: relative;
  display: flex;
  flex-direction: column;
  padding-top: 135px;
  min-height: 260px;
}

.list-content__item:after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.participate__container
  .participate__list
  .list-content__item:nth-child(1):after {
  background-image: url(../img/participate-one.svg);
  background-repeat: no-repeat;
}

.participate__container
  .participate__list
  .list-content__item:nth-child(2):after {
  background-image: url(../img/participate-two.svg);
  background-repeat: no-repeat;
}

.participate__container
  .participate__list
  .list-content__item:nth-child(3):after {
  background-image: url(../img/participate-three.svg);
  background-repeat: no-repeat;
}

/* dates */

.dates {
  margin-bottom: 137px;
}

.dates__tittle-h3 {
  margin: 0;
  margin-bottom: 50px;
  font-weight: 700;
  font-size: 30.7px;
  line-height: 150%;
  color: var(--color-black);
}

.wrapper-content__item {
  display: flex;
  flex-direction: column;
  padding-left: 0;
  padding-right: 0;
  min-height: 40vh;
}

.wrapper-content__item:nth-child(1) {
  padding-top: 134px;
}

.wrapper-content__item:nth-child(2) {
  padding-top: 23px;
}

.wrapper-content__item:nth-child(3) {
  padding-top: 134px;
}

.wrapper-content__block {
  padding-top: 35px;
  padding-bottom: 35px;
  margin-bottom: 30px;
  text-align: center;
  font-weight: 600;
  font-size: 18px;
  line-height: 170%;
  color: var(--color-white);
  background: var(--color-blue);
  border-radius: 10px;
}

.list__item {
  position: relative;
}

.list__item::after {
  content: "";
  position: absolute;
  top: 12px;
  left: 9px;
  width: 5px;
  height: 5px;
  background-color: var(--color-black);
  border-radius: 2px;
}

.wrapper-content__tittle-h4 {
  margin: 0;
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 18.6px;
  line-height: 170%;
  color: var(--color-black);
}

.list__tittle-h5 {
  margin: 0;
  padding-left: 26px;
  font-weight: 400;
  font-size: 16px;
  line-height: 170%;
  color: var(--color-black);
}

.wrapper-content__txt {
  margin: 0;
  margin-bottom: 26px;
  max-width: 92%;
  font-weight: 400;
  font-size: 16.6px;
  line-height: 170%;
  color: var(--color-black);
}

.dates__container
  .dates__wrapper-content
  .wrapper-content__item
  .wrapper-content__txt:nth-child(2) {
  margin-bottom: 31px;
}

.dates__wrapper-content
  .wrapper-content__item
  .wrapper-content__block:nth-child(2) {
  background-color: var(--color-red);
}

.dates__wrapper-content
  .wrapper-content__item
  .wrapper-content__block:nth-last-child(1) {
  background-color: var(--color-red);
}

/* school */

.school {
  background-color: var(--color-beige);
}

.school__container {
  padding-top: 156px;
  padding-bottom: 135px;
}

.school__content {
  position: relative;
  margin-bottom: 146px;
  min-height: 720px;
}

.school__content::before {
  content: "";
  position: absolute;
  top: -1%;
  right: -98%;
  bottom: 0;
  left: 113%;
  background-image: url(../img/school.jpg);
  background-size: contain;
  background-repeat: no-repeat;
}

.school__tittle {
  margin-bottom: 60px;
}

.school__text {
  font-weight: 400;
  font-size: 18px;
  line-height: 173%;
  color: var(--color-black);
}

.school__tittle-h3 {
  margin: 0;
  margin-bottom: 60px;
  font-weight: 700;
  font-size: 30px;
  line-height: 150%;
  color: var(--color-black);
}

.school__number {
  display: block;
  margin-bottom: 19px;
  font-weight: 300;
  font-size: 64px;
  line-height: 140%;
  color: var(--color-black);
}

.school__tittle-h6 {
  margin: 0;
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 20px;
  line-height: 170%;
  color: var(--color-black);
}

.school__text-bottom {
  margin: 0;
  margin-bottom: 15px;
  font-weight: 400;
  font-size: 16px;
  line-height: 170%;
  color: var(--color-black);
}

/* authors */

.authors {
  padding-top: 150px;
  margin-bottom: 135px;
}

.authors__tittle {
  margin-bottom: 103px;
}

.swiper-wrapper {
  flex-wrap: nowrap;
}

.swiper-wrapper {
  cursor: pointer;
}

.swiper-slide__img {
  margin-bottom: 33px;
}

.swiper-slide__tittle-h3 {
  margin: 0;
  margin-bottom: 20px;
  color: var(--color-black);
}

.swiper-slide__text {
  margin: 0;
  margin-bottom: 15px;
  font-weight: 400;
  font-size: 16px;
  line-height: 170%;
  color: var(--color-black);
}

.swiper-horizontal > .swiper-pagination-bullets,
.swiper-pagination-bullets.swiper-pagination-horizontal,
.swiper-pagination-custom,
.swiper-pagination-fraction {
  bottom: -4px;
}

.swiper-horizontal > .swiper-pagination-bullets .swiper-pagination-bullet,
.swiper-pagination-horizontal.swiper-pagination-bullets
  .swiper-pagination-bullet {
  background-color: var(--color-black);
}

/* form */

.form {
  background-color: var(--color-beige);
}

.form__container {
  padding-top: 153px;
  padding-bottom: 150px;
}

.form__tittle {
  margin-bottom: 52px;
}

.form__list {
  margin-bottom: 62px;
}

.form__item {
  margin-bottom: 20px;
}

.form__item:nth-last-child(1) {
  margin-bottom: 0;
}

.form__item-text {
  position: relative;
  margin: 0;
  padding-left: 6px;
  max-width: 91%;
  font-weight: 400;
  font-size: 18px;
  line-height: 170%;
  color: var(--color-black);
}

.form__item-text::after {
  content: "";
  position: absolute;
  top: 10px;
  left: -15px;
  width: 6px;
  height: 6px;
  background-color: var(--color-black);
  border-radius: 3px;
}

.form__number {
  display: block;
  margin-bottom: 51px;
  font-weight: 700;
  font-size: 40px;
  line-height: 170%;
  color: var(--color-black);
}

.form__text {
  margin: 0;
  font-weight: 400;
  font-size: 18px;
  line-height: 170%;
  color: var(--color-light-grey);
}

.form__txt {
  margin: 0;
  margin-bottom: 50px;
  font-weight: 700;
  font-size: 31px;
  line-height: 150%;
  color: var(--color-black);
}

.form__request {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form__input {
  width: 100%;
  padding: 18px 0 18px 20px;
  border: 1px solid #e4e4e4;
  border-radius: 10px;
  color: var(--color-light-grey);
  background-color: var(--color-white);
  outline-color: var(--color-red);
}

.form__libel-style {
  display: flex;
}

.form__libel-style .form__libel {
  width: 95%;
  margin-right: 20px;
}

.form__libel-style .form__libel:nth-last-child(1) {
  margin-right: 0;
}

.form__libel-style .form__libel .form__input {
  width: 100%;
}

.form__btn {
  padding-top: 18px;
  padding-bottom: 18px;
  text-align: center;
  font-weight: 500;
  font-size: 18px;
  line-height: 21px;
  color: var(--color-white);
  background-color: var(--color-red);
  border-radius: 10px;
  transition: background-color 0.3s ease-in-out;
}

.form__btn:hover {
  background-color: var(--color-red);
}

.form__btn:hover {
  background-color: var(--color-black);
}

.form__btn:active {
  background-color: var(--color-grey);
}

/* footer */

.footer {
  background-color: var(--color-light-black);
}

.footer__container {
  padding-top: 150px;
  padding-bottom: 149px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 45px;
}

.footer__list {
  display: flex;
}

.footer__item {
  margin-right: 52px;
  font-weight: 400;
  font-size: 16px;
  line-height: 19px;
  color: var(--color-white);
}

.footer__item:nth-last-child(1) {
  margin-right: 0;
}

.footer__link-nav {
  position: relative;
  padding: 10px 0px;
  transition: color 0.3s ease-in-out;
}

.footer__link-nav:before {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--color-red);
  left: 0;
  bottom: 0;
  transition: 0.3s;
  transform: scale(0);
  transform-origin: center;
}

.footer__link-nav:hover:before {
  transform: scale(1);
}

.footer__link-nav:active {
  color: var(--color-red);
}

.footer__link-nav:focus-visible {
  outline: 2px solid var(--color-red);
  outline-offset: 5px;
}

.footer__number {
  position: relative;
  padding: 10px 0px;
  transition: color 0.3s ease-in-out;
}

.footer__number:before {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--color-red);
  left: 0;
  bottom: 0;
  transition: 0.3s;
  transform: scale(0);
  transform-origin: center;
}

.footer__number:hover:before {
  transform: scale(1);
}

.footer__number:active {
  color: var(--color-red);
}

.footer__number:focus-visible {
  outline: 2px solid var(--color-red);
  outline-offset: 5px;
}

.footer__number {
  font-weight: 400;
  font-size: 24px;
  line-height: 28px;
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  justify-content: center;
}

.footer__wrapper {
  display: flex;
}

.footer__content-link {
  margin-right: 40px;
}

.footer__content-link:nth-last-child(1) {
  margin-right: 0;
}

.footer__content-link svg {
  fill: var(--color-white);
  transition: fill 0.3s ease-in-out;
}

.footer__content-link svg:hover {
  fill: var(--color-light-grey);
}