html {
  box-sizing: border-box;
}

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

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

img {
  max-width: 100%;
}

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

@font-face {
  font-family: "Montserrat";
  src: local("Montserrat-Medium"), url("../fonts/MontserratMedium.woff2") format("woff2"), url("../fonts/MontserratMedium.woff") format("woff");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

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

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

@font-face {
  font-family: "Montserrat";
  src: local("Montserrat-ExtraBold"), url("../fonts/MontserratExtraBold.woff2") format("woff2"), url("../fonts/MontserratExtraBold.woff") format("woff");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

@media (min-width: 1200px) {
  .nav__link:hover:before {
    opacity: 1;
    transform: scale(1);
  }

  .visually-hidden {
    position: absolute !important;
    clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
    clip: rect(1px, 1px, 1px, 1px);
    padding:0 !important;
    border:0 !important;
    height: 1px !important;
    width: 1px !important;
    overflow: hidden;
  }

  .btn-search:hover:not(:active) .btn-search__svg rect {
    fill: var(--color-orange);
  }

  .btn-search:hover:not(:active) .btn-search__svg path {
    stroke: var(--color-orange);
  }

  .btn--effects:hover {
    background-color: var(--color-light-orange);
  }

  .content-left__btn:hover {
    background-color: var(--color-orange);
  }

  .work-content__btn--stroke:hover {
    background-color: var(--color-gray);
    border-color: var(--color-gray);
    color: white
  }

  .nav--effects:hover {
    color: var(--color-orange);
  }

  .questions__btn:hover:not(:active) {
    border-color: var(--color-orange);
    z-index: 1;
  }

  .questions__btn:hover:not(:active) .btn__svg ellipse {
    fill: var(--color-orange);
  }

  .questions__btn:hover:not(:active) .btn__svg path {
    fill: white;
  }

  .questions__btn:hover:not(:active) .questions__btn__text {
    color: var(--color-orange);
  }

  .social__link:hover .social__svg path {
    fill: var(--color-orange);
  }

  .form--effects:hover {
    background-color: var(--color-gray);
  }

  .form-close:hover .form-close-svg rect {
    fill: var(--color-orange)
  }

  .form-close:hover .form-close-svg circle {
    stroke: var(--color-orange);
  }
}

input,
textarea,
button {
  outline: none;
}

:root {
  --color-orange: #f90;
  --color-light-orange: #ffb84d;
  --color-dark-orange: #e1670e;
  --color-gray: #666;
  --color-light-gray: #cacaca;
  --color-dark-gray: #414141;
  --width-plus: calc(60% + 1px);
}

h1, h2, h3, h4, h5, h6, p, ul {
  margin: 0;
}

/* glob */
.page {
  min-width: 320px;
  font-family: "Montserrat", sans-serif;
  font-weight: 400;
}

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

.btn-reset {
  padding: 0;
  border: 0;
  background-color: transparent;
  cursor: pointer;
}

.btn {
  padding: 20px 38px;
  border-radius: 16px;
  text-align: center;
  color: #fff;
  background-color: #f90;
}

.flex {
  display: flex;
}

.container {
  max-width: 1870px;
  margin: 0 auto;
  padding: 0 50px;
}

.section{
  padding: 50px 0;
}

.title {
  font-weight: 400;
  font-size: 48px;
  line-height: 59px;
  color: #000;
}

.title-3 {
  font-weight: 700;
  font-size: 24px;
  line-height: 32px;
  color: black;
}

/** button effects **/
.btn--effects {
  transition: background-color .3s ease-in-out;
}

.btn--effects:focus-visible {
  outline: none;
  background-color: var(--color-light-orange);
}

.btn--effects:active {
  background-color: var(--color-dark-orange);
}

/** nav--effects **/
.nav--effects {
  outline: 2px solid transparent;
  outline-offset: 3px;
  transition-property: outline-color, color;
  transition-duration: .3s;
  transition-timing-function: ease-in-out;
}

.nav--effects:focus-visible {
  outline: 2px solid var(--color-orange);
}

.nav--effects:active {
  color: var(--color-dark-orange);
}

/** form--effects **/
.form--effects {
  transition: background-color .3s ease-in-out;
}

.form--effects:focus-visible,
.form--effects:active {
  outline: none;
  background-color: var(--color-gray);
}

/* header */
.header {
  position: relative;
}

.header__top {
  padding: 14px 0;
  margin-bottom: 48px;
  background: #fff;
  box-shadow: 0px 5px 40px rgba(0, 0, 0, 0.1);
  border-radius: 0px 0px 32px 32px;
}

.header__container {
  min-height: 72px;
  align-items: center;
}

.burger {
  display: none;
}

.nav__close {
  display: none;
  margin-bottom: 108px;
}

.header__logo {
  margin-right: auto;
}

.header__nav {
  align-items: center;
  margin-right: 260px;
}

.nav__list {
  align-items: center;
  gap: 85px;
}

.nav__link {
  position: relative;
  outline: 2px solid transparent;
  outline-offset: 5px;
  font-weight: 600;
  font-size: 18px;
  line-height: 22px;
  transition-property: outline-color, color;
  transition-duration: .3s;
  transition-timing-function: ease-in-out;
}

.nav__link:before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -7px;
  height: 2px;
  background-color: var(--color-orange);
  opacity: 0;
  transform: scale(0);
  transition-property: opacity, transform, background-color;
  transition-duration: .3s;
  transition-timing-function: ease-in-out;
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-light-orange);
}

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

.nav__link:active:before {
  background-color: var(--color-dark-orange);
  opacity: 1;
  transform: scale(1);
}

.btn-search {
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline-color .3s ease-in-out;
}

.btn-search__svg rect {
  transition: fill .3s ease-in-out;
}

.btn-search__svg path {
  transition: stroke .3s ease-in-out;
}

.btn-search:focus-visible {
  outline: 2px solid var(--color-orange);
}

.btn-search:active .btn-search__svg rect {
  fill: var(--color-orange);
}

.btn-search:active .btn-search__svg path {
  stroke: var(--color-orange);
}

.btn-search {
  transition: opacity .3s ease-in-out;
}

.btn-search.active {
  opacity: 0;
}

.form-btn__open {
  transition: opacity .3s ease-in-out;
}

.form-btn__open.active {
  opacity: 0;
}

.form-search {
  display: flex;
  align-items: center;
  padding: 16px 18px 16px 32px;
  max-width: 539px;
  width: 84%;
  height: 60px;
  border-radius: 24px;
  position: absolute;
  z-index: 2;
  top: 7%;
  transform: translateY(-250%);
  right: 46px;
  background-color: white;
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: transform .3s ease-in-out, opacity .3s ease-in-out,
    visibility .3s ease-in-out;
}

.form-search__input {
  flex: 1;
  padding-bottom: 4px;
  width: 412px;
  margin: 0;
  background-color: transparent;
  border: 0;
  border-bottom: 1px solid var(--color-light-gray);
  margin-right: 14px;
}

.form-search__input:focus-visible {
  outline: 0;
  opacity: 0.8;
}

.form-search__input::placeholder {
  font-weight: 400;
  font-size: 18px;
  line-height: 22px;
  color: var(--color-light-gray);
}

.form-btn__submit {
  margin-right: 20px;
}

.form__active {
  transform: translateY(-50%);
  opacity: 1;
  visibility: visible;
}

.form-close {
  padding: 0;
  outline: none;
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline-color .3s ease-in-out;
}

.form-close:focus-visible {
  outline: 2px solid var(--color-orange);
}

.form-close-svg rect {
  transition: fill .3s ease-in-out;
}

.form-close:active .form-close-svg rect {
  fill: black;
}

.form-close-svg circle {
  transition: stroke .3s ease-in-out;
}

.form-close:active .form-close-svg circle {
  stroke: black;
}

/* main */
.main {
  padding-bottom: 50px;
}

/* hiro */
.hero-slider_content {
  position: relative;
  flex-direction: column;
  min-height: 620px;
  padding: 100px 80px 102px 80px;
  z-index: 1;
}

.swiper.hero__swiper {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

.swiper-slide {
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 32px;
}

.swiper-slide-1 {
  background-image: url("../img/slider-1.png");
}

.swiper-slide-2 {
  background-image: url("../img/slider-2.png");
}

.swiper-slide-3 {
  background-image: url("../img/slider-3.png");
}

.swiper-pagination-bullet {
  background-color: var(--color-light-gray);
}

.swiper-pagination-bullet-active {
  background-color: white;
}

.hero__title {
  max-width: 837px;
  margin-bottom: 25px;
  font-weight: 800;
  font-size: 70px;
  line-height: 85px;
  color: #fff;
}

.hero__descr {
  max-width: 837px;
  margin-bottom: auto;
  font-weight: 700;
  font-size: 24px;
  line-height: 29px;
  color: #fff;
}

.hero__btn {
  max-width: max-content;
  padding: 25px 39px;
  font-weight: 700;
  font-size: 23px;
  line-height: 28px;
  color: #fff;
}

/* about */
.about__title {
  margin-bottom: 20px;
}

.about__descr {
  max-width: 1235px;
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  color: #000;
  margin-bottom: 48px;
}

.advantage {
  gap: 32px;
}

.advantage__content-left {
  width: calc((100% - 32px) /2);
  min-height: 622px;
  background-image: url("../img/about-left.png");
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 32px;
}

.content-left {
  align-items: flex-end;
}

.content-left__desc {
  width: 100%;
  justify-content: space-between;
  padding: 50px;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 32px;
}

.content-left__text {
  max-width: 433px;
  margin-right: 47px;
  font-weight: 700;
  font-size: 16px;
  line-height: 32px;
  color: #fff;
}

.btn-wrapper {
  align-self: center;
  padding: 16px 0 22px 0;
}

.content-left__btn {
  padding: 20px 36px 15px 36px;
  background-color: inherit;
  border: 3px solid var(--color-orange);
  transition-property: background-color, border-color;
  transition-duration: .3s;
  transition-timing-function: ease-in-out;
}

.content-left__btn:focus-visible {
  outline: none;
  background-color: var(--color-orange);
}

.content-left__btn:active{
  background-color: var(--color-dark-orange);
  border-color: var(--color-dark-orange);
}

.advantage__content-right {
  width: calc((100% - 32px) /2);
}

.content-right__list {
  flex-direction: column;
  gap: 32px;
}

.content-right__item {
  height: calc((100% - 32px) / 2);
  min-height: 295px;
  padding: 7.4% 10% 7% 34.3%;
  border: 1px solid #cacaca;
  border-radius: 32px;
}

.content-right__item-1 {
  background-image: url("../img/about-right-1.svg");
  background-repeat: no-repeat;
  background-position: 8.5% 50%;
  background-size: 22%;
}

.content-right__item-2 {
  background-image: url("../img/about-right-2.svg");
  background-repeat: no-repeat;
  background-position: 8.5% 50%;
  background-size: 22%;
}

.content-right__title {
  margin-bottom: 7px;
  font-weight: 700;
  font-size: 24px;
  line-height: 29px;
  color: #000;
}

.content-right__text {
  font-weight: 400;
  font-size: 16px;
  line-height: 33px;
}

/* work */
.work__title {
  margin-bottom: 50px;
}

.work__nav {
  margin-bottom: 45px;
}

.work__list {
  gap: 85px;
}

.work__item {
  font-weight: 400;
  font-size: 18px;
  line-height: 22px;
  color: #000;
}

.work-content {
  position: relative;
  min-height: 460px;
}

.work-content__descr {
  width: calc((100% - 32px) / 2);
}

.work-content__descr-1:before,
.work-content__descr-2:before,
.work-content__descr-3:before,
.work-content__descr-4:before {
  content: "";
  position: absolute;
  width: calc((100% - 32px) / 2);
  bottom: 0;
  right: 0;
  top: 10px;
  background-size: cover;
  background-position: center;
  border-radius: 32px;
}

.work-content__descr-1:before {
  background-image: url("../img/working-1.png");
}

.work-content__descr-2:before {
  background-image: url("../img/working-2.png");
}

.work-content__descr-3:before {
  background-image: url("../img/working-3.png");
}

.work-content__descr-4:before {
  background-image: url("../img/working-4.png");
}

.work__tabs-btn--active {
  color: var(--color-dark-orange);
}

.work-tabs__item {
  display: none;
}

.work-tabs__item--active {
  display: block;
}

.work-content__title {
  margin-bottom: 8px;
}

.work-content__text {
  max-width: 758px;
  margin-bottom: 18px;
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  color: #000;
}

.work-content__btn {
  padding: 20px 38px;
  border-radius: 16px;
}

.work-content__btn--fill {
  margin-right: 28px;
  font-weight: 700;
  font-size: 16px;
  line-height: 20px;
  color: #fff;
  background-color: var(--color-orange);
  border: 1px solid var(--color-orange);
}

.work-content__btn--stroke {
  font-weight: 400;
  font-size: 16px;
  line-height: 20px;
  color: #000;
  border: 1px solid black;
  transition-property: background-color, border-color, color;
  transition-duration: .3s;
  transition-timing-function: ease-in-out;
}

.work-content__btn--stroke:focus-visible {
  outline: none;
  background-color: var(--color-gray);
  border: 1px solid var(--color-gray);
  color: white
}

.work-content__btn--stroke:active {
  background-color: black;
  border-color: black;
  color: white;
}

/* questions */
.questions__title {
  padding: 11px 0;
  margin-bottom: 21px;
}

.questions__btn {
  position: relative;
  justify-content: space-between;
  width: 100%;
  border-top: 1px solid var(--color-light-gray);
  border-bottom: 1px solid var(--color-light-gray);
  padding-top: 30px;
  padding-bottom: 30px;
  margin-bottom: -1px;
  transition: border-color .3s ease-in-out;
}

.questions__btn .btn__svg {
  transition: transform .3s ease-in-out;
}

.questions__btn .btn__svg ellipse,
.questions__btn .btn__svg path {
  transition: fill .3s ease-in-out;
}

.questions__btn:focus-visible {
  outline: none;
  border-color: var(--color-orange);
  z-index: 1;
}

.questions__btn:focus-visible .btn__svg ellipse {
  fill: var(--color-orange);
}

.questions__btn:focus-visible .btn__svg path {
  fill: white;
}

.questions__btn__text {
  position: relative;
  align-self: center;
  text-align: left;
  padding-top: 9px;
  padding-bottom: 9px;
  font-weight: 700;
  font-size: 24px;
  line-height: 32px;
  color: black;
  transition: color .3s ease-in-out;
}

.questions__btn:focus-visible .questions__btn__text {
  color: var(--color-orange);
}

.accordion--active .btn__svg {
  transform: rotate(45deg);
}

.questions__bottom {
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  padding-right: 50px;
}

.accordion__content {
  overflow: hidden;
  visibility: hidden;
  transition-property: height, visibility;
  transition-timing-function: ease;
}

.accordion--active .accordion__content {
  visibility: visible;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-light-gray);
  z-index: 1;
  margin-bottom: -1px;
}

.accordion--active .questions__btn {
  border-bottom: 0;
}

.accordion--active .questions__lead:not(:last-child) {
  margin-bottom: 32px;
}

.accordion__heading {
  margin: 0;
}

/* footer */
.footer {
  min-height: 594px;
  padding-top: 50px;
  padding-bottom: 45px;
  background-color: #000;
}

.footer-content {
  justify-content: space-between;
}

.footer__links {
  width: max(364px, 259px);
  margin-right: 20px;
}

.footer__logo {
  display: inline-block;
  margin-bottom: 16px;
}

.footer__item {
  font-weight: 600;
  font-size: 18px;
  line-height: 36px;
  color: var(--color-light-gray);
}

.footer__nav {
  margin-bottom: 90px;
}

.social {
  gap: 25px;
}

.social__link {
  display: block;
  outline: 2px solid transparent;
  outline-offset: 5px;
  transition: outline-color .3s ease-in-out;
}

.social__link .social__svg path {
  transition: fill .3s ease-in-out;
}

.social__link:focus-visible {
  outline: 2px solid var(--color-orange);
}

.social__link:active .social__svg path {
  fill: var(--color-dark-orange);
}

.footer__title {
  margin-bottom: 25px;
  color: var(--color-light-gray);
}

.footer__form {
  max-width: 570px;
  margin-right: 20px;
}

.footer__title {
  margin-bottom: 25px;
  color: var(--color-light-gray);
}

.form {
  justify-content: center;
  flex-wrap: wrap;
}

.form__input,
.form__textarea {
  width: 570px;
  min-height: 60px;
  padding: 14px 24px;
  background-color: var(--color-dark-gray);
  border: 0;
  border-radius: 16px;
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  color: white;
}

.form__input:not(:placeholder-shown),
.form__textarea:not(:placeholder-shown) {
  background-color: var(--color-gray);
}

.form__textarea {
  min-height: 150px;
  margin-bottom: 32px;
  resize: none;
}

.form__input {
  margin-bottom: 25px;
}

.form__input::placeholder,
.form__textarea::placeholder {
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  color: var(--color-light-gray);
}

.form__btn {
  padding: 19px 52px;
  font-weight: 700;
  font-size: 16px;
  line-height: 20px;
}

.form--effects:active {
  background-color: var(--color-gray);
}

.footer__info {
  width: 363px;
}

.footer__text {
  padding-top: 89px;
  max-width: 363px;
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  color: var(--color-light-gray);
}

.visually-hidden {
  position: absolute !important;
  clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
  clip: rect(1px, 1px, 1px, 1px);
  padding:0 !important;
  border:0 !important;
  height: 1px !important;
  width: 1px !important;
  overflow: hidden;
}