html {
  scroll-behavior: smooth;
}

body {
  /*    background: #1a1b1d;    Убрать если фон мешает */
  margin: 0;

  font-family: "Raleway", sans-serif;
  font-size: 14px;
  color: #262c28;
  -webkit-font-smoothing: antialiased;
}
*,
:before,
:after {
  box-sizing: border-box;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
}
p {
  margin: 0 0 10px;
}

/* Container
====================*/

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header
====================*/

.header {
  width: 100%;
  height: 100px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1000;
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 35px 0;
  border-bottom: 1px solid rgb(255, 255, 255);
}

/* NAV
====================*/

.nav {
  display: flex;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
}

.nav__link {
  margin-left: 50px;
  color: #fff;
  opacity: 0.75;
  transition: opacity 0.1s linear;
  text-decoration: none;
}

.nav__link:first-child {
  margin-left: 0;
}
.nav__link:hover {
  opacity: 1;
}

/* Intro
====================*/

.intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 750px;
  padding-top: 100px;
  background: #262c28 url("../img/bg.jpg") center no-repeat;
  background-size: cover;

}

.intro__inner {
  max-width: 970px;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.intro__title {
  margin: 0 0 30px;

  font-family: "Open Sans", "sans-serif";
  font-size: 65px;
  line-height: 1.1;
  color: #fff;
  font-weight: 700;
  text-transform: uppercase;
  text-align: center;
}

.intro__subtitle {
  font-size: 22px;
  font-weight: 400;
  color: #fff;
  line-height: 1.5;
  margin-bottom: 60px;
}

/* Button
====================*/

.btn {
  display: inline-block;
  padding: 14px 40px;
  border-radius: 2px;
  font-family: "Ralewat", sans-serif;
  border: 0;
  cursor: pointer;
  color: #fff;
  vertical-align: top;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.1s linear;
}

.btn--red {
  background-color: #e84545;
}

.btn--red:hover {
  background-color: #dd3434;
}

/* Features
====================*/

.features {
  display: flex;
  margin: 100px 0;
  flex-wrap: wrap;
}

.features__item {
  width: 33.3333%;
  padding: 0 40px;
  margin: 25px 0;

  text-align: center;
}

.features__icon {
  margin-bottom: 25px;
}

.features__title {
  margin-bottom: 20px;
  font-size: 14px;
  color: #2d3033;
  font-weight: 700;
  text-transform: uppercase;
}
.features__text {
  font-size: 14px;
  color: #6c7279;
  line-height: 1.5;
}

/*Works
====================*/

.works {
  display: flex;
  flex-wrap: wrap;
}

.works__item {
  width: 25%;
  height: 400px;

  border-bottom: 1px solid #fff;
  border-right: 1px solid #fff;

  position: relative;
  overflow: hidden;
}
.works__item:hover .works__content {
  opacity: 1;
}

.works__photo {
  height: 600px;
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;

  transform: translate3d(-50%, -50%, 0);
}

.works__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  height: 100%;

  background-color: rgba(232, 69, 69, 0.9);
  opacity: 0;

  text-align: center;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  transition: opacity 0.2s linear;
}

.works__title {
  margin-bottom: 5px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
}

.works__text {
  font-size: 14px;
  color: #fff;
}

/*Certificates
====================*/

.team {
  background: #262c28;
  margin: 0;
  padding: 70px 0;
  /* margin: 70px 0 70px; */
}

.team__inner {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.team__item {
  width: 25%;
  padding: 0 15px;
  margin-bottom: 30px;
}

.team__photo {
  height: 400px;
  margin-bottom: 20px;
  display: block;
  max-width: 100%;
  height: auto;
}

.team__name {
  margin-bottom: 8px;
  font-size: 22px;
  color: #fff;
}

.team__prof {
  margin-bottom: 15px;
  font-size: 13px;
  color: #e84545;
  text-transform: uppercase;
}
.team__text {
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.5;
  color: #6c7279;
}

/*Social
====================*/

.social {
  display: flex;
}

.social--footer {
  justify-content: center;
}

.social__item {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  margin-right: 4px;

  background-color: #fff;
  border: 1px solid #e8ecee;

  transition: background 0.1s linear;
}

.social__item:hover {
  background-color: #e8ecee;
}

.social__item:hover .social__icon {
  fill: #1942cc;
}

.social--footer .social__item {
  background-color: transparent;
  border-width: 2px;
  border-color: #fff;
  border-radius: 2px;
}

.social--footer .social__item:hover {
  background-color: #fff;
}

.social__icon {
  display: block;
  height: 18px;

  fill: #c6cacc;

  transition: fill 0.1s linear;
}

.social--footer .social__icon {
  fill: #fff;
}

/*About
====================*/

.about {
  overflow: hidden;
  background-color: #262c28;
}

.about__item {
  display: flex;
  flex-wrap: wrap;
}

.about__photo {
  width: 40%;
  height: 600px;
  position: relative;
}

.about__img {
  height: 600px;
  position: absolute;
  top: 50%;
  right: -40;
  z-index: 1;

  transform: translateY(-50%);
}

.about__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 60%;
}

.about__text {
  font-family: "Cardo", sans-serif;
  font-style: italic;
  font-size: 26px;
  line-height: 1.2;
  color: #fff;
}

/*Download
====================*/

.download {
  margin: 90px 0;

  text-align: center;
}

.download__title {
  margin-bottom: 10px;
  font-size: 28px;
  color: #2d3033;
  font-weight: 300;
}

.download__text {
  font-size: 13px;
  color: #2d3033;
  font-weight: 700;
  text-transform: uppercase;
}

/*Footer
====================*/

.footer {
  background-color: #262c28;
}

.footer__inner {
  padding: 70px 0;
  display: flex;
  flex-wrap: wrap;
}

.footer__block {
  width: 33.33333%;
  padding: 0 15px;

  text-align: center;
}

.footer__title {
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
}

.footer__adress {
  font-size: 14px;
  line-height: 1.5;
  font-style: normal;
  color: #fff;
}

.footer__text {
  font-size: 14px;
  line-height: 1.5;
  color: #fff;
}

/*Copyright
====================*/

.copyright {
  padding: 20px 0;
  background-color: #1a1b1d;
}
.copyright__text {
  text-align: center;
  font-size: 14px;
  line-height: 1.5;
  color: #808080;
}

.copyright__text span {
  color: #fff;
}

/*Burger
====================*/

.burger {
  display: none;
}

.arrow__up {
  position: fixed;
  bottom: 5%;
  right: 3%;
  color: #fff;
  width: 70px;
  height: 70px;
  background: linear-gradient(130deg, #2d2722 50%, #398a99 50%);
  -webkit-background-size: 300px;
  background-size: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  font-size: 50px;
  border-radius: 5px;
  transition: 0.5s;
}

.arrow__up:hover {
  background-position: 100% 0;
}

/*Media
====================*/
@media (max-width: 1300px) {
  /*     Works*/

  .works__item {
    width: 33.33333%;
  }
}

@media (max-width: 991px) {
  /*Nav*/
  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    background-color: #262c28;
    text-align: right;
    position: absolute;
    top: 100%;
    right: 0;
  }
  .nav.show {
    display: flex;
  }
  .nav__link {
    padding: 9px 15px;
  }

  /*Burger*/
  .burger {
    display: block;

    padding: 9px 2px;
    background: none;
    border: 0;
    cursor: pointer;
  }

  .burger__item {
    display: block;
    width: 30px;
    height: 3px;
    background-color: #fff;
    font-size: 0;
    color: transparent;

    position: relative;
  }

  .burger__item:before,
  .burger__item:after {
    content: "";
    width: 30px;
    height: 3px;

    background-color: #fff;

    position: absolute;
    left: 0;
    z-index: 1;
  }
  .burger__item:before {
    top: -8px;
  }

  .burger__item:after {
    bottom: -8px;
  }
  /*Intro*/

  .intro__title {
    font-size: 40px;
  }
  /* Features*/
  .features__item {
    width: 50%;
  }
  /*    Certificates */
  .team__item {
    width: 50%;
    text-align: center;
  }
  .team__photo {
    margin-left: auto;
    margin-right: auto;
  }
  /*About*/

  .about__photo {
    width: 100%;
    margin: 22px 9px;
  }
  .about__content {
    width: 100%;
  }
  .about__content {
    padding-top: 15px;
    padding-bottom: 30px;
  }
}

@media (max-width: 767px) {
  .intro {
    height: auto;
    padding-top: 130px;
    padding-bottom: 30px;
  }

  .intro__title {
    font-size: 30px;
  }

  .intro__subtitle {
    margin-bottom: 30px;

    font-size: 16px;
  }
  .features {
    margin: 40px 0;
  }
  .features__item {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
  }
  .works__item {
    width: 100%;
    height: 300px;
  }
  .team__item {
    width: 100%;
  }

  /*About*/

  .about__photo {
    width: 100%;
    margin-top: 6px;
    margin-right: -7px;
    margin-bottom: 6px;
    margin-left: -7px;
  }
  .about__item {
    margin-top: 30px;
  }
  .about__content {
    width: 100%;
  }
  .about__content {
    padding-top: 15px;
    padding-bottom: 30px;
  }
  .about__text {
    font-size: 25px;
  }

  .footer__block {
    width: 100%;
  }
}