* {
  box-sizing: border-box;
}
html {
  /* плавная прокрутка по ссылке*/
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "Montserrat", sans-serif;
  color: #000;
}
img {
  max-width: 100%;
}
.certificate {
  display: inline-block;
  width: 500px;
  height: 500px;
}
.none {
  display: none !important;
}
.container {
  padding-left: 15px;
  padding-right: 15px;
  margin-left: auto;
  margin-right: auto;
  max-width: 1140px;
}
/* HEADER */
.header {
  position: relative;
  /*отвечает за позиционирование */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  /* background-color: #6e798a; */
  /* background-: url(./../img/header/header-bg.jpg);
  background-size: cover;
  background-position: center; */
}
.header-title {
  position: absolute;
  top: 40%;
  margin: 0;
  margin-bottom: 25px;
  color: #fff;
  text-align: center;
  font-size: 56px;
  font-weight: 700;
  line-height: 130%; /* 72.8px */
}
.header-subtitle {
  position: absolute;
  top: 50%;
  margin: 0;
  color: #fff;
  text-align: center;
  font-size: 25px;
  font-weight: 700;
  line-height: 150%; /* 24px */
  letter-spacing: 3.2px;
  text-transform: uppercase;
}
.header-arrow {
  width: 48px;
  height: 48px;
  /* background-color: red; */
  position: absolute;
  bottom: 30px;
  left: 50%;
  /*margin-left: -24px;*/
  transform: translate(-5%, 0);
}
/* Портфолио */
.portfolio {
  padding-top: 80px;
  padding-bottom: 115px;
}
.portfolio-header {
  margin: 0;
  margin-bottom: 70px;
  color: #000;
  text-align: center;
  font-size: 46px;
  font-weight: 700;
  line-height: 130%;
}
/* portfolio-card-wrapper */
.portfolio-card-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
/* //portfolio-card-wrapper */
.card {
  margin-bottom: 30px;
  max-width: 540px;
  background-color: #fff;
  /* card-shadow */
  box-shadow: 0px 10px 40px 0px rgba(126, 155, 189, 0.35);
  transition: transform 0.2s ease-in;
}
.card:hover {
  transform: translateY(-15px);
}
.card-link {
  padding: 20px;
  text-decoration: none;
  display: block;
  color: #000;
  transition: color 0.2s ease-in;
}
.card-link:hover {
  color: rgb(31, 91, 236);
}
.card:last-child,
.card:nth-last-child(2) {
  margin-bottom: 0;
}
.card-img {
  margin-bottom: 20px;
}
.card-title {
  margin: 0;
  margin-bottom: 13px;
  font-size: 24px;
  font-weight: 600;
  line-height: 130%;
}
.card p {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 130%;
}
.footer {
  padding-top: 45px;
  padding-bottom: 130px;
  background: #1e4776;
  color: white;
}
.footer-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
.footer-copyright {
  flex-grow: 1;
  max-width: 350px;
  color: #7e9ec9;
  line-height: 1.3;
}
.footer-copyright-name {
  margin-bottom: 15px;
  font-size: 28px;
  font-weight: 700;
}
.footer-copyright p {
  margin: 0;
  margin-bottom: 15px;
  font-size: 16px;
  font-weight: 600;
}
.footer-icons {
  max-width: 350px;
  flex-grow: 1;
}
.footer-icons p {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
}
.footer-icons-row {
  display: flex;
  align-items: center;
  flex-direction: row;
}
.footer-icons-row > * + * {
  margin-left: 30px;
}
.footer-contacts {
  flex-grow: 1;
  max-width: 350px;
}
.footer-button {
  height: 50px;
  display: inline-block;
  padding-left: 30px;
  padding-right: 30px;

  border-radius: 50px;
  border: 3px solid #fff;

  color: white;
  line-height: 44px;
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
}
.footer-button:hover {
  background-color: #fff;
  color: #1e4776;
  transition: all 0.2s ease-in;
}
.footer-contacts p {
  margin: 15px 0;
  color: #7e9ec9;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.3;
}

/* Container-slaider */
.slaider {
  padding-top: 80px;
  padding-bottom: 50px;
}
.slaider-content:hover {
  transform: translateY(-15px);
}
.slaider-content {
  display: flex;
  align-items: center;
  margin: 0 auto 30px;
  padding: 20px;
  max-width: 1140px;
  transition: transform 0.2s ease-in;
  /* background-color: #cb6f39; */
  /* background-size: cover; */
  /* background-repeat: no-repeat; */

  box-shadow: 0px 10px 40px 0px rgba(126, 155, 189, 0.35);
}
.container-slaider_text {
  font-size: 20px;
  font-style: italic;
}
.container-slaider_text p {
  font-weight: 600;
  font-size: 16px;
}
.container-slaider {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 60px 30px;
  padding: 20px;
  max-height: 50%;
  /* max-width: 1140px; */
  /* background-color: #cb6f39; */
  /* background-size: cover;
  background-repeat: no-repeat; */
  /* box-shadow: 0px 10px 40px 0px rgba(126, 155, 189, 0.35); */
  /* transition: transform 0.2s ease-in; */
  /* background-image: url(https://images.unsplash.com/photo-1531315630201-bb15abeb1653?w=600&auto=format&fit=crop&q=60&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxzZWFyY2h8OHx8YmFja2dyb3VuZHxlbnwwfHwwfHx8Mg%3D%3D); */
}

#pictures {
  width: 350px;
  height: 350px;
  border: #000 1px solid;
}
.btn-slaider {
  display: inline-block;
  height: 60%;
  background-color: #ffffff68;
  color: #090909;
  border: none;
  font-family: "Dancing Script", cursive;
  font-size: 20px;
  font-weight: 500;
}