header {
  padding: 30px 0 50px;
  background: url("../img/header-bg.svg") no-repeat center top;
  background-size: cover;
  position: relative;
  z-index: 10;
}
header .btn-group .btn {
  padding: 13px 20px;
}
header .btn-group .btn-callback {
  padding: 13px 25px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 195px;
  width: 100%;
}
.logo img {
  width: 100%;
}

.link-instagramm {
  width: 50px;
  min-width: 50px;
  padding: 13px;
}
.link-instagramm .svg-icon {
  margin: 0;
}

.btn-callback {
  padding: 10px 25px;
}

.header-bottom {
  width: 100%;
  margin: 34px 0 0;
}

.nav-menu {
  width: 100%;
}

.menu {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  text-transform: uppercase;
  font-size: 15px;
  font-weight: bold;
}
.menu li {
  margin: 0 60px 0 0;
}
.menu li:last-child {
  margin: 0;
}
.menu li a {
  color: #585858;
}
.menu li a:hover, .menu li a:focus, .menu li a.active {
  color: #015B64;
}