chota/src/_form.css

fieldset {
  padding: 0.5rem 2rem;
}

legend {
  text-transform: uppercase;
  font-size: 0.8em;
  letter-spacing: 0.1rem;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="color"]):not([type="button"]):not([type="reset"]),
select,
textarea,
textarea[type="text"] {
  font-family: inherit;
  padding: 0.7rem 1rem;
  border-radius: 4px;
  border: 1px solid var(--lightGrey-color);
  font-size: 1em;
  transition: all 0.2s ease;
  display: block;
  width: 100%;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="color"]):not([type="button"]):not([type="reset"]):hover,
select:hover,
textarea:hover,
textarea[type="text"]:hover {
  border-color: #aaa;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="color"]):not([type="button"]):not([type="reset"]):focus,
select:focus,
textarea:focus,
textarea[type="text"]:focus {
  outline: none;
  border-color: var(--primary-color);
}

select {
  -webkit-appearance: none;
  background: #fafafa no-repeat 100%;
  background-size: 1ex;
  background-origin: content-box;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='60' height='40' fill='#555'><polygon points='0,0 60,0 30,40'/></svg>");
}

[type="checkbox"],
[type="radio"] {
  width: 1.6rem;
  height: 1.6rem;
}

/* BUTTONS */
.button,
[type="button"],
[type="reset"],
[type="submit"],
button {
  padding: 1rem 2.5rem;
  color: #333;
  background: #e6e6e6;
  border-radius: 4px;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  text-align: center;
  transition: opacity 0.2s ease;
  text-decoration: none;
  transform: scale(1);
  display: inline-block;
}

.button + .button {
  margin-left: 1rem;
}

.button:hover,
[type="button"]:hover,
[type="reset"]:hover,
[type="submit"]:hover,
button:hover {
  opacity: 0.8;
}

.button:active,
[type="button"]:active,
[type="reset"]:active,
[type="submit"]:active,
button:active {
  transform: scale(0.98);
}

input[disabled],
button[disabled],
input[disabled]:hover,
button[disabled]:hover {
  opacity: 0.4;
  cursor: not-allowed;
}

.button.primary,
.button.secondary,
[type="submit"] {
  color: #fff;
  background-color: #000;
  background: var(--primary-color);
}

.button.secondary {
  background: var(--darkGrey-color);
}

.button.outline {
  background-color: transparent;
  border: 1px solid var(--lightGrey-color);
}

.button.outline.primary {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.button.outline.secondary {
  border-color: var(--darkGrey-color);
  color: var(--darkGrey-color);
}

.button.clear {
  background-color: transparent;
  border-color: transparent;
  color: var(--primary-color);
}