a button,
button,
[role="button"],
input[type="submit"],
input[type="reset"],
input[type="button"] {
  font-size: 1rem;
  padding: 0.7rem 0.9rem;
  margin: 0.5rem 0;
  transition: 0.4s;
}

a button[disabled],
button[disabled],
[role="button"][aria-disabled="true"],
input[type="submit"][disabled],
input[type="reset"][disabled],
input[type="button"][disabled],
input[type="checkbox"][disabled],
input[type="radio"][disabled],
select[disabled] {
  cursor: default;
  opacity: 0.5;
  cursor: not-allowed;
}

input:disabled,
textarea:disabled,
select:disabled {
  cursor: not-allowed;
}

input[type="range"] {
  padding: 0;
}

/* Format forms */
textarea,
select,
input {
  font-size: inherit;
  font-family: inherit;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text);
  background: var(--bg);
  box-shadow: none;
  box-sizing: border-box;
  width: 60%;
}

/* Add arrow to  */
select {
  background-image: linear-gradient(45deg, transparent 49%, var(--text) 51%),
    linear-gradient(135deg, var(--text) 51%, transparent 49%);
  background-position: calc(100% - 20px), calc(100% - 15px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

select[multiple] {
  background-image: none !important;
}

/* checkbox and radio button style */
input[type="checkbox"],
input[type="radio"] {
  vertical-align: bottom;
  position: relative;
}

input[type="radio"] {
  border-radius: 100%;
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
  background: var(--accent);
}

input[type="checkbox"]:checked::after {
  /* Creates a rectangle with colored right and bottom borders which is rotated to look like a check mark */
  content: " ";
  width: 0.1em;
  height: 0.25em;
  border-radius: 0;
  position: absolute;
  top: 0.05em;
  left: 0.18em;
  background: transparent;
  border-right: solid var(--bg) 0.08em;
  border-bottom: solid var(--bg) 0.08em;
  font-size: 1.8em;
  transform: rotate(45deg);
}
input[type="radio"]:checked::after {
  /* creates a colored circle for the checked radio button  */
  content: " ";
  width: 0.25em;
  height: 0.25em;
  border-radius: 100%;
  position: absolute;
  top: 0.125em;
  left: 0.125em;
  font-size: 32px;
}

/* Make the textarea wider than other inputs */
textarea {
  width: 80%;
}

/* Makes input fields wider on smaller screens */
@media only screen and (max-width: 720px) {
  textarea,
  select,
  input {
    width: 100%;
  }
}

/* Ensures the checkbox and radio inputs do not have a set width like other input fields */
input[type="checkbox"],
input[type="radio"] {
  width: auto;
}

/* do not show border around file selector button */
input[type="file"] {
  border: 0;
}

/* Without this any HTML using <fieldset> shows ugly borders and has additional padding/margin. (Issue #3) */
fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}