body {
  font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
  color: #333;
  font-size: 16px;
  line-height: 20px;
}

.body {
  background-color: #212121;
  font-family: Raleway, sans-serif;
  color: #fff;
}

.container {
  overflow: hidden;
  height: 100vh;
  max-width: 1040px;
  margin-right: auto;
  margin-left: auto;
  padding-right: 20px;
  padding-left: 20px;
}

.columns {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  height: 100%;
  margin-right: -10px;
  margin-left: -10px;
  -webkit-box-align: stretch;
  -webkit-align-items: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
}

.boards-slider {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  text-align: center;
}

.board {
  width: 400px;
  margin-top: 10px;
  margin-bottom: 10px;
  border-radius: 9%;
  box-shadow: 0 3px 20px 0 rgba(0, 0, 0, 0.74);
}

.heading {
  font-size: 24px;
  line-height: 28px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

.content {
  -webkit-align-self: center;
  -ms-flex-item-align: center;
  -ms-grid-row-align: center;
  align-self: center;
}

.logo {
  width: 280px;
}

.form {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}

.text-field {
  height: 48px;
  border: 1px none #000;
  border-radius: 3px;
  background-color: #181818;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.text-field::-webkit-input-placeholder {
  color: hsla(0, 0%, 100%, 0.4);
}

.text-field:-ms-input-placeholder {
  color: hsla(0, 0%, 100%, 0.4);
}

.text-field::-ms-input-placeholder {
  color: hsla(0, 0%, 100%, 0.4);
}

.text-field::placeholder {
  color: hsla(0, 0%, 100%, 0.4);
}

.submit-button {
  height: 48px;
  margin-left: 15px;
  padding: 0px 50px;
  border-radius: 4px;
  background-color: #181818;
  color: #4dae96;
  font-size: 17px;
  line-height: 48px;
  font-weight: 800;
  text-align: center;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.slider {
  width: 420px;
}

.div-block {
  text-align: center;
}

.success-message {
  background-color: #181818;
  color: #4dae96;
}

.error-message {
  padding-top: 0px;
  padding-bottom: 0px;
  padding-left: 0px;
  background-color: transparent;
  color: #df4949;
}

.form-block {
  margin-top: 25px;
}

@media (max-width: 991px) {
  .columns {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }
  .boards-slider {
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-flex: 2;
    -webkit-flex: 2 0px;
    -ms-flex: 2 0px;
    flex: 2 0px;
  }
  .board {
    width: 50vw;
    height: 50vw;
    margin-right: 20px;
  }
  .content {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    padding-top: 30px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: stretch;
    -webkit-align-items: stretch;
    -ms-flex-align: stretch;
    align-items: stretch;
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    flex: 1;
  }
  .slider {
    width: 100%;
  }
  .div-block {
    -webkit-box-flex: 0;
    -webkit-flex: 0 auto;
    -ms-flex: 0 auto;
    flex: 0 auto;
    text-align: center;
  }
}

@media (max-width: 479px) {
  .boards-slider {
    -webkit-box-flex: 1;
    -webkit-flex-grow: 1;
    -ms-flex-positive: 1;
    flex-grow: 1;
  }
  .board {
    width: 200px;
    height: 200px;
  }
  .heading {
    margin-top: 0px;
    margin-bottom: 0px;
    font-size: 15px;
  }
  .logo {
    width: 250px;
  }
  .form {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }
  .submit-button {
    margin-left: 0px;
  }
  .form-block {
    margin-top: 10px;
  }
}