.burger {
  display: none;
}

.burger:checked ~ .burger__btn > .burger__btn--off {
  transform: rotate(45deg);
}

.burger:checked ~ .burger__btn > .burger__btn--off::before {
  top: 0;
  transform: rotate(0);
}

.burger:checked ~ .burger__btn > .burger__btn--off::after {
  top: 0;
  transform: rotate(90deg);
}

@media (max-width: 1200px) {
  .burger__btn {
    align-items: center;
    width: 1.625rem;
    height: 1.625rem;
  }
  .burger__btn--off,
  .burger__btn--off::before,
  .burger__btn--off::after {
    display: block;
    position: absolute;
    width: 1.25rem;
    height: 0.125rem;
    background-color: #fff;
    transition-duration: 0.25s;
  }
  .burger__btn--off::before {
    content: "";
    top: -0.5rem;
  }
  .burger__btn--off::after {
    content: "";
    top: 0.5rem;
  }
}
@media (max-width: 768px) {
  .burger__btn {
    align-items: center;
    width: 1.25rem;
    height: 1.25rem;
  }
  .burger__btn--off,
  .burger__btn--off::before,
  .burger__btn--off::after {
    display: block;
    position: absolute;
    width: 1.25rem;
    height: 0.125rem;
    background-color: #fff;
    transition-duration: 0.25s;
  }
  .burger__btn--off::before {
    content: "";
    top: -0.5rem;
  }
  .burger__btn--off::after {
    content: "";
    top: 0.5rem;
  }
}
.burger__btn--position {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 5;
  cursor: pointer;
}

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

html {
  scroll-behavior: smooth;
  font-family: "Inter", sans-serif;
  font-weight: normal;
  font-style: normal;
}

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  display: flex;
  flex-direction: column;
  background: url("/images/main-bg.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: top;
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
li,
figure,
figcaption,
blockquote,
dl,
dd {
  margin: 0;
}

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

img {
  display: block;
}

a {
  text-decoration: none;
}

input,
select,
textarea {
  outline: none;
  font: inherit;
}

input:-webkit-autofill {
  -webkit-text-fill-color: #f1f3f7;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus,
select:-webkit-autofill,
select:-webkit-autofill:hover,
select:-webkit-autofill:focus {
  transition: background-color 5000s ease-in-out 0s;
}

h1,
h2,
h3 {
  font-family: "Manrope", sans-serif;
  font-style: normal;
  font-weight: 300;
}

h2 {
  font-size: 3.625rem;
  line-height: 4.125rem;
  margin-bottom: 2rem;
}
@media (max-width: 600px) {
  h2 {
    font-size: 3rem;
    line-height: 2.875rem;
  }
}

.container {
  max-width: 109.375rem;
  margin: 0 auto;
  padding: 0 2.1875rem;
}
@media (max-width: 768px) {
  .container {
    padding: 0 0.9375rem;
  }
}
@media (max-width: 400px) {
  .container {
    padding: 0 0.625rem;
  }
}

.home-header {
  padding: 2rem 0rem;
  background-color: #0f1429;
}

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

.home-header__logo-img {
  max-width: 24.75rem;
  height: 2.875rem;
}
@media (max-width: 1440px) {
  .home-header__logo-img {
    max-width: 18.75rem;
    height: 2.5rem;
  }
}
@media (max-width: 600px) {
  .home-header__logo-img {
    max-width: 13.5625rem;
    height: 1.5625rem;
  }
}

.mobile-header {
  display: none;
}
@media (max-width: 1200px) {
  .mobile-header {
    display: block;
  }
}

.language {
  position: relative;
}

.language__btn {
  background-color: #0f1429;
  color: #f1f3f7;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  font-size: 1.25rem;
  line-height: 1.75rem;
  gap: 0.875rem;
  cursor: pointer;
  border: none;
  padding: 0;
}
@media (max-width: 600px) {
  .language__btn {
    gap: 0.375rem;
    font-size: 1rem;
    line-height: 1.25rem;
  }
}
@media (max-width: 400px) {
  .language__btn {
    font-size: 0.875rem;
    line-height: 1rem;
  }
}

.fa-angle-down {
  font-size: 1rem;
}
@media (max-width: 1440px) {
  .fa-angle-down {
    font-size: 0.875rem;
  }
}
@media (max-width: 600px) {
  .fa-angle-down {
    font-size: 0.625rem;
  }
}

.language__dropdown {
  position: absolute;
  width: 10.25rem;
  padding: 0.75rem;
  background: #0f1429;
  border: 0.0625rem solid rgba(255, 255, 255, 0.12);
  border-radius: 0.5rem;
  visibility: hidden;
  opacity: 0;
  transform: translateY(0.5rem);
  transition: all 0.1s cubic-bezier(0.16, 1, 0.5, 1);
  right: 0rem;
  top: 2.5rem;
}

.language__link {
  display: flex;
  align-items: center;
  padding: 0.8rem 1rem;
  text-decoration: none;
  color: #f1f3f7;
}

.language__img {
  width: 2rem;
  height: 1.5rem;
  margin-right: 0.75rem;
}

.show {
  visibility: visible;
  opacity: 1;
  transform: translateY(0rem);
}

.arrow {
  transform: rotate(180deg);
  transition: 0.2s ease;
}

@media (max-width: 1200px) {
  .navigation {
    display: flex;
    position: fixed;
    top: 0;
    left: -100vw;
    width: 50%;
    margin: 0;
    padding: 9.375rem 1.25rem;
    list-style: none;
    background-color: #0f1429;
    z-index: 2;
    transition: all 0.4s;
    height: 100vh;
  }
  .navigation--active {
    left: 0;
  }
}
@media (max-width: 400px) {
  .navigation {
    display: flex;
    position: fixed;
    top: 0;
    left: -100vw;
    width: 75%;
    margin: 0;
    padding: 9.375rem 1.25rem;
    list-style: none;
    background-color: #0f1429;
    z-index: 2;
    transition: all 0.4s;
    height: 100vh;
  }
  .navigation--active {
    left: 0;
  }
}

.navigation__list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
@media (max-width: 1200px) {
  .navigation__list {
    flex-direction: column;
    align-items: flex-start;
  }
}

.navigation__link {
  font-family: "Manrope'";
  font-weight: 300;
  font-size: 1.25rem;
  line-height: 1.75rem;
  letter-spacing: 0.00125rem;
  color: #F1F3F7;
  transition: color 0.3s;
  padding-bottom: 0.3125rem;
}
.navigation__link:hover {
  color: #3069db;
  border-bottom: 1px solid #3069db;
}

.main {
  color: #F1F3F7;
  flex: 1 0 auto;
}

.head {
  padding: 16.375rem 0rem 25.625rem;
  background-image: url("/images/head_bg.jpg");
  background-repeat: no-repeat;
  background-size: cover;
}

.head__title {
  font-family: "Manrope'";
  font-style: normal;
  font-weight: 300;
  font-size: 5.875rem;
  line-height: 6.375rem;
  margin-bottom: 1.25rem;
  text-align: center;
  color: #fff;
}
@media (max-width: 600px) {
  .head__title {
    font-size: 3.625rem;
    line-height: 4.125rem;
  }
}

.head__subtitle {
  font-family: "Manrope'";
  font-style: normal;
  font-weight: 300;
  font-size: 3rem;
  line-height: 3.5rem;
  text-align: center;
  color: #fff;
}
@media (max-width: 600px) {
  .head__subtitle {
    font-size: 2rem;
    line-height: 2.5rem;
  }
}

.about {
  padding: 5.625rem 0rem 7.5rem;
}

.about__wrap {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}
@media (max-width: 1024px) {
  .about__wrap {
    flex-direction: column;
  }
}

.about__title {
  margin-bottom: 2.5rem;
}

.about__text {
  font-size: 1rem;
  line-height: 1.5rem;
  max-width: 51.5rem;
  color: #ADAFB8;
}

.about__link {
  color: #3069db;
}

.about__right-block {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}
@media (max-width: 1024px) {
  .about__right-block {
    justify-content: space-around;
  }
}
@media (max-width: 600px) {
  .about__right-block {
    flex-direction: column;
    align-items: center;
  }
}

.about__card {
  max-width: 13.75rem;
}

.about__number {
  background: linear-gradient(101.23deg, #3677f7 0%, #0027af 97.24%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
  margin-bottom: 1rem;
  text-align: center;
}

.about__phrase {
  font-size: 1rem;
  line-height: 1.5rem;
  text-align: center;
}

.education {
  padding-bottom: 8.5rem;
}

.education__list {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
@media (max-width: 768px) {
  .education__list {
    flex-wrap: wrap;
  }
}
@media (max-width: 600px) {
  .education__list {
    justify-content: center;
  }
}

.education__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}
@media (max-width: 768px) {
  .education__item {
    width: 45%;
  }
}

.education__btn {
  width: 100%;
  padding: 1rem;
  border: 0.0625rem solid #0c1a36;
  border-radius: 0.5rem;
  background-color: #0f1429;
  color: #ADAFB8;
  cursor: pointer;
}
.education__btn:hover {
  background: #282f4b;
  color: #F1F3F7;
}
.education__btn:focus {
  background: #282f4b;
  color: #F1F3F7;
}

.education__catalog {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.education-card {
  max-width: 24.75rem;
  background: #0f1429;
  padding: 1.25rem;
  box-shadow: 0rem 0.25rem 3.5rem rgba(26, 56, 117, 0.08);
  border-radius: 1rem;
  border: 0.0625rem solid #0c1a36;
}

.education-card__title-wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.education-card__img {
  max-width: 6rem;
  height: 6rem;
  border-radius: 0.5rem;
  object-fit: cover;
}

.education-card__title {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 300;
  font-size: 1.5rem;
  line-height: 2rem;
}

.education-card__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.education-card__item {
  width: 10.375rem;
}

.education-card__subtitle {
  font-size: 0.75rem;
  line-height: 1.125rem;
  color: #757575;
  text-transform: uppercase;
  letter-spacing: 0.015rem;
}

.education-card__text {
  font-size: 1rem;
  line-height: 1.5rem;
  color: #3677f6;
}

.education-card__heading {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 500;
  font-size: 1.25rem;
  line-height: 1.75rem;
  margin-bottom: 1rem;
}

.education-card__about {
  font-size: 1rem;
  line-height: 1.5rem;
  letter-spacing: 0.005rem;
  color: #757575;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.education-card__link {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  width: 100%;
  height: 3.5rem;
  background: #3677f6;
  border-radius: 0.5rem;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5rem;
  color: #ffffff;
  transition: background-color 0.3s;
}
.education-card__link:hover {
  background-color: #3069db;
}

.education-card__link--is-disabled {
  color: currentColor;
  cursor: not-allowed;
  opacity: 0.5;
  pointer-events: none;
  text-decoration: none;
}

.active {
  background: #282f4b;
  color: #F1F3F7;
}

.fundamental-disciplines,
.programming-languages,
.database,
.quality-assurance,
.design {
  display: none;
}

.certification__text {
  font-size: 1rem;
  line-height: 1.5rem;
  letter-spacing: 0.005rem;
  max-width: 51.5rem;
  margin-bottom: 3.75rem;
}

.certification__list {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}
@media (max-width: 768px) {
  .certification__list {
    flex-direction: column;
    align-items: flex-start;
  }
}

.certification__item {
  max-width: 33.75rem;
}

.certification__item-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 1rem;
}

.certification__img {
  width: 6.9375rem;
  height: 6.5rem;
}

.certification__number {
  font-size: 2rem;
  line-height: 2.5rem;
  letter-spacing: 0.0025rem;
  color: #fff;
  position: absolute;
  top: 2.75rem;
  left: 0.75rem;
}

.certification__line {
  height: 2px;
  background-color: #d9d9d9;
  width: 100%;
}
@media (max-width: 768px) {
  .certification__line {
    display: none;
  }
}

.certification__head {
  font-size: 1.9375rem;
  line-height: 2.5rem;
  letter-spacing: 0.0025rem;
  margin-bottom: 0.5rem;
}

.certification__description {
  font-size: 1rem;
  line-height: 1.5rem;
  max-width: 31.25rem;
  letter-spacing: 0.005rem;
  color: #757575;
  margin-bottom: 1rem;
}

.teachers {
  padding-top: 8.5rem;
}

.teachers__list {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.teachers__card {
  max-width: 24.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}
@media (max-width: 600px) {
  .teachers__card {
    max-width: 18.75rem;
  }
}

.teachers__img {
  width: 24.75rem;
  height: 24.75rem;
  margin-bottom: 1rem;
}
@media (max-width: 600px) {
  .teachers__img {
    width: 18.75rem;
    height: 18.75rem;
  }
}

.teachers__name {
  margin-bottom: 0.5rem;
  font-weight: 400;
  font-size: 2rem;
  line-height: 2.5rem;
  letter-spacing: 0.0025rem;
}
@media (max-width: 600px) {
  .teachers__name {
    font-size: 1.5rem;
    line-height: 2rem;
  }
}

.teachers__text {
  font-size: 1rem;
  line-height: 1.5rem;
  letter-spacing: 0.005rem;
  color: #757575;
  text-align: center;
}

.question {
  padding-top: 8.5rem;
}

@keyframes spinner-border {
  100% {
    transform: rotate(360deg);
  }
}
.disabled-btn {
  pointer-events: none;
  opacity: 0.65;
}

.submit-spinner {
  margin-left: 0.4375rem;
  display: inline-block;
  width: 1rem;
  height: 1rem;
  vertical-align: -0.125rem;
  border: 0.1875rem solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  -webkit-animation: 0.75s linear infinite spinner-border;
  animation: 0.75s linear infinite spinner-border;
}

.submit-spinner_hide {
  display: none;
}

.form {
  max-width: 51.5rem;
  margin: 0 auto;
}

.form__item {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.form__text {
  font-size: 1rem;
  line-height: 1.5rem;
  letter-spacing: 0.0015rem;
  color: #ADAFB8;
  padding-left: 1.0625rem;
}

.form__name {
  flex: 1 0 47%;
}

.form__input,
.form__select {
  border: none;
  border-bottom: 1px solid #ADAFB8;
  background-color: transparent;
  padding: 1.0625rem;
  color: #F1F3F7;
  width: 100%;
}
.form__input::placeholder,
.form__select::placeholder {
  color: #F1F3F7;
}
.form__input:focus,
.form__select:focus {
  border-color: #3677f6;
}

.form__select option {
  background-color: #0f1428;
  border: none;
}

.form__btn {
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  padding: 1rem 1.5rem;
  background: #3677f6;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5rem;
  letter-spacing: 0.005rem;
  color: #F1F3F7;
  transition: background-color 0.3s;
  cursor: pointer;
}
.form__btn:hover {
  background-color: #3069db;
}

.iti {
  width: 100%;
}
.iti__country-list {
  background-color: #0f1428;
  color: #F1F3F7;
}

.social {
  display: flex;
  align-items: center;
  max-width: 7.1875rem;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (max-width: 600px) {
  .social {
    margin: 0rem auto;
    margin-bottom: 2rem;
    justify-content: center;
  }
}

.social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #3841c3;
  width: 3rem;
  height: 3rem;
  border-radius: 3.125rem;
  -webkit-transition: transform 0.5s;
  -moz-transition: transform 0.5s;
  -ms-transition: transform 0.5s;
  -o-transition: transform 0.5s;
  transition: transform 0.5s;
  will-change: transform;
}
.social__link:hover {
  -webkit-transform: scale(0.9);
  -moz-transform: scale(0.9);
  -ms-transform: scale(0.9);
  -o-transform: scale(0.9);
  transform: scale(0.9);
}

.social__img {
  object-fit: contain;
  width: 1.5rem;
  height: 1.5rem;
}

.arrow-next {
  top: -2rem;
}

.arrow-prev {
  top: -2rem;
  right: 3rem;
  left: auto;
}

.show-education-list {
  display: flex;
  animation: showEducationList 0.5s linear forwards;
}

@keyframes showEducationList {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.footer {
  padding: 9.75rem 0rem 4.6875rem;
}
.footer__date, .footer__mail {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 2rem;
  color: #F1F3F7;
}
@media (max-width: 600px) {
  .footer__date, .footer__mail {
    font-size: 1.25rem;
    line-height: 1.75rem;
  }
}