html {
  box-sizing: border-box;
  -ms-overflow-style: scrollbar;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  background-color: #f4f7fd;
}

.container {
  margin: 0 auto;
  max-width: 1000px;
  padding: 0 15px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  margin-left: -15px;
  margin-right: -15px;
}

.card {
  width: 100%;
  padding: 0 15px;
  margin-top: 15px;

  @media screen and (min-width: 992px) {
    width: 33.333333%;
    margin-top: 0;
  }

  .card-wrap {
    background-color: #fff;
    border-radius: 3px;
    box-shadow: 0 0 15px rgba(#1e2f43, 0.15);
    text-align: center;
    padding: 30px 20px;
  }

  .card-title {
    margin: 0;
    font-family: sans-serif;
  }

  .features {
    padding: 0;
    margin: 0;
    list-style: none;
    height: 0;
    overflow: hidden;

    &.open {
      height: auto;
    }

    li {
      margin-top: 10px;
    }
  }
}

.toggle-features,
.scroll-button {
  border: 0;
  border-radius: 40px;
  cursor: pointer;
  display: inline-block;
  font-family: sans-serif;
  font-size: 16px;
  padding: 15px 30px;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.3s, box-shadow 0.3s, color 0.3s;
  background-color: #00a3ff;
  color: #fff;
  margin-top: 15px;

  &:hover {
    background-color: darken(#00a3ff, 10%);
  }
}