:root {
  --primary-color: #07afd9;
  /* --primary-color: red; */
}

* {
  box-sizing: border-box;
  font-family: sans-serif;
}

body {
  background-color: #1e2b35;
  color: var(--primary-color);
  overflow: scroll;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

form {
  margin-top: 20vh;
}

fieldset {
  border-color: var(--primary-color);
  color: var(--primary-color);
  font-weight: 600;
}

input {
  display: block;
  width: 80%;
  margin: auto;
  margin-top: 1rem;
  font-size: 1.8rem;
  background-color: var(--primary-color);
  border: none;
  border-radius: 8px;
  padding: 6px;
}

.radio-tile-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.input-container {
  position: relative;
  height: 7rem;
  width: 7rem;
  margin: 1.2rem;
}

.input-container input {
  position: absolute;
  height: 100%;
  width: 100%;
  margin: 0;
  cursor: pointer;
  z-index: 2;
  opacity: 0;
}

.input-container .radio-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  border: 2px solid var(--primary-color);
  border-radius: 8px;
  transition: all 300ms ease;
}

.input-container ion-icon {
  color: var(--primary-color);
  font-size: 3rem;
}

.percent-display {
  color: var(--primary-color);
  font-size: 1.4rem;
}

.input-container label {
  color: var(--primary-color);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

input:checked + .radio-tile {
  background-color: var(--primary-color);
  box-shadow: 0 0 12px var(--primary-color);
}

input:hover + .radio-tile {
  box-shadow: 0 0 12px var(--primary-color);
}

input:checked + .radio-tile ion-icon,
input:checked + .radio-tile .percent-display,
input:checked + .radio-tile label {
  color: white;
}

.hidden {
  display: none;
}

.center {
  text-align: center;
  width: 100%;
  margin: auto;
}

.pay-display {
  width: 80%;
  margin: auto;
  margin-top: 6rem;
  text-align: center;
  font-size: 1.2rem;
  padding: 1rem;
  border-radius: 10px;
}

.pay-display * {
  padding: 1rem;
}

img {
  width: 100%;
  height: auto;
}

.btc,
.btc span {
  font-size: 2rem;
}