body {
  background-image: url("../img/bg/1.jpg");
  background-size: cover;
  /*backdrop-filter: blur(2px);*/
}

.opacity-0 {
  opacity: 0;
}

#table_course td {
  color: red;
  vertical-align: middle;
  padding: 10px;
  font-size: 32px;
  font-weight: 500;
  text-shadow: 1px 0px 1px rgb(0 0 0 / 60%);
}
#trading_view {
  /*border: 1px solid red;*/
  border-radius: 15px;
  background-color: #00000045;
}
#trading_view iframe {
  border-radius: 15px;
}

#table_course {
  /*border: 1px solid red;*/
  border-radius: 15px;
  background-color: #00000045;
  color: #ffffff;
}

#table_course thead th {
  font-size: 30px;
  font-weight: 500;
}

header {
  text-align: center;
  padding: 30px 0;
  width: 100%;
  display: flex;
  justify-content: center;
  background-color: #00000045;
  color: #ff2727;
  text-shadow: 0px 1px 1px rgb(0 0 0 / 75%);
}
header a {
  color: #ff2727;
}
.header-contacts {
  justify-content: center;
  display: flex;
  flex-direction: column;
  margin-left: 200px;
  font-size: 19px;
  font-weight: bold;
  color: #ff2727;
  text-shadow: 0px 0px 1px rgb(0 0 0 / 75%);
}
.header-contacts .phone {
  color: #ffffff;
  text-shadow: 0px 1px 1px rgb(0 0 0 / 75%);
  font-size: 30px;
  letter-spacing: -2px;
}
.header-address {
  justify-content: center;
  display: flex;
  flex-direction: column;
  margin-left: 200px;
  font-size: 19px;
  color: #ff2727;
  text-shadow: 0px 0px 1px rgb(0 0 0 / 75%);
}
.header-address .text {
  font-size: 30px;
  font-weight: 500;
}

header .logo a {
  font-size: 40px;
  font-weight: bold;
  color: #ff2727;
}
header .logo i {
  color: #ffffff;
}
.logo-first-icon {
  font-size: 45px;
}
main {
  display: flex;
}
main > section {
  width: 50%;
  padding: 0 20px;
  margin-top: 20px;
}
section > h2 {
  color: #ff2727;
  text-shadow: 2px 1px 1px rgb(0 0 0 / 75%);
}

.table td,
.table th {
  border-top: 1px solid #989898;
}
.table thead th {
  border-bottom: none;
}

section#contact {
  margin-top: 40px;
}

.address {
  font-size: 22px;
  line-height: 28px;
  min-height: 56px;
}
@media screen and (max-width: 1270px) {
  .header-contacts {
    margin-left: 100px;
  }
  .header-address {
    margin-left: 100px;
  }
}

@media screen and (max-width: 1050px) {
  .header-contacts {
    margin-left: 50px;
  }
  .header-contacts .phone {
    font-size: 20px;
  }
  .header-address {
    margin-left: 50px;
  }
  .header-address .text {
    font-size: 20px;
  }
}

@media screen and (max-width: 860px) {
  main {
    display: block;
  }
  main > section {
    width: 100%;
    padding: 0;
    margin-top: 20px;
  }
  #table_course {
    border-radius: 0;
  }

  .header-contacts {
    margin-left: 30px;
    font-size: 16px;
  }
  .header-address {
    margin-left: 30px;
    font-size: 16px;
  }
  header .logo a {
    font-size: 32px;
  }
  .logo-first-icon {
    font-size: 34px;
  }
  .address {
    font-size: 22px;
    line-height: 26px;
  }
}

@media screen and (max-width: 670px) {
  header {
    display: block;
  }
  .header-contacts {
    margin: 20px 0;
  }
  .header-address {
    margin: 0;
  }
}

@media screen and (max-width: 500px) {
  #table_course thead th {
    font-size: 18px;
  }
  #table_course td {
    font-size: 27px;
  }
}