* {
  box-sizing: border-box;
}

body {
  margin: 0;

  --primary: #28b9be;
  --gray: #eee;
  --lighter-gray: #eee;
  --border-width: 1px;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

h2 {
  font-size: 1.2em;
  font-weight: inherit;
}

button {
  padding: 0;
  width: 100%;
  border: none;
  padding: .75em;
  cursor: pointer;
  border-radius: .5em;
}

img {
  max-width: 100%;
}

img, svg {
  vertical-align: middle;
}

select, input, textarea, form button {
  display: block;
  padding: .75em;
  width: 100%;
  border-radius: .5em;
  border: 1px solid #eee;
}

button {
  color: inherit;
}

button, input, textarea {
  font: inherit;
}

textarea {
  resize: vertical;
}

.input-group {
  display: flex;

  input {
    flex: 1 1 auto;
  }

  input:not(:last-child) {
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
  }

  button:not(:first-child) {
    border-left: none;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }

  button {
    flex: 1;
    padding: 0 .75em;

    svg {
      width: 1.5em;
      height: 1.5em;
    }
  }
}

input[type="checkbox"][role="switch"] {
  padding: 0;
  width: 4em;
  height: 2em;
  cursor: pointer;
  appearance: none;
  position: relative;
  border-radius: 50em;
  box-sizing: content-box;
  border: var(--border-width) solid var(--gray);
  background-color: var(--lighter-gray);
  transition: border .3s, background-color .3s;

  &::before {
    width: 2em;
    height: 2em;
    content: '';
    display: block;
    background: #fff;
    position: absolute;
    border-radius: 100%;
    transition: transform .3s;
  }

  &:checked {
    border-color: var(--primary);
    background-color: var(--primary);

    &::before {
      transform: translateX(2em);
    }
  }
}