* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body,
#app {
  width: 100%;
  height: 100%;
  min-width: 320px;
}

body,
#app {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem 0;
  font-family: 'IBM Plex Sans', Helvetica, sans-serif;
}

.button {
  background: none;
  border: none;
  cursor: pointer;
}

.button:disabled {
  pointer-events: none;
  opacity: 0.4;
}

main {
  height: 100%;
  margin: 1rem 0;
}

footer {
  text-align: center;
  color: #666;
  padding: 1rem 0;
  border-top: 1px solid #ddd;
  margin-top: 1rem;
}

footer p,
footer a {
  font-size: 0.8rem !important;
  padding-bottom: 0.3rem;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

a {
  color: #000;
  font-size: 1rem;
  font-weight: 700;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
}

.small {
  font-size: 0.8rem;
}

.button.primary {
  background: black;
  color: white;

  min-width: 90px;
  width: 100%;

  padding: 0.4rem 0.8rem;
  border: 2px solid #000;
}

.button.primary:hover {
  background: #222;
}

.divider {
  background: #333;
  height: 1px;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

form {
  display: flex;
  flex-direction: column;
}

label {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

form input {
  font-size: 1rem;
  width: 100%;
  height: 2rem;
  border: none;
  box-shadow: none;
  border-radius: 0;
  border-bottom: 1px solid #ddd;
}

form input:focus {
  outline: none;
  border-bottom: 2px solid #000;
}

label.checkbox {
  display: flex;
  font-weight: normal;
  line-height: 1rem;
}

label.checkbox input {
  width: 1rem;
  margin: 0 0.5rem 0 0;
}
label.checkbox:focus-within {
  outline: 1px solid;
}