.bio-column {
  margin-top: 10%;
}

.qr-mode-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 auto 20px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.qr-mode-toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.switch-track {
  position: relative;
  width: 52px;
  height: 28px;
  flex: 0 0 auto;
  background: #767676;
  border-radius: 999px;
  transition: background-color 150ms ease;
}

.switch-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgb(0 0 0 / 35%);
  transition: transform 150ms ease;
}

.qr-mode-toggle input:checked + .switch-track {
  background: #0085ff;
}

.qr-mode-toggle input:checked + .switch-track::after {
  transform: translateX(24px);
}

.qr-mode-toggle input:focus-visible + .switch-track {
  outline: 3px solid #0085ff;
  outline-offset: 3px;
}

.qr-mode-help,
.qr-label {
  display: none;
}

.link-with-qr {
  position: relative;
  width: 300px;
  margin: 0 auto 1rem;
}

.link-with-qr .button {
  margin-bottom: 0;
}

.qr-code {
  display: none;
}

.qr-mode .qr-mode-help {
  display: block;
  max-width: 420px;
  margin: 0 auto 20px;
  font-size: 15px;
}

.qr-mode .platform-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  max-width: 240px;
  margin: 0 auto;
}

.qr-mode .link-with-qr {
  display: flex;
  width: 100%;
  margin: 0;
  align-items: center;
  flex-direction: column;
}

.qr-mode .link-with-qr .button {
  display: none;
}

.qr-mode .link-with-qr .qr-code {
  position: static;
  display: block;
  width: min(100%, 220px);
  height: auto;
  box-sizing: border-box;
  padding: 8px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgb(0 0 0 / 18%);
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: none;
}

.qr-mode .qr-label {
  display: block;
  margin-top: 8px;
  font-size: 16px;
  font-weight: 700;
}

@media (min-width: 700px) {
  .qr-code {
    position: absolute;
    top: 50%;
    left: calc(100% + 16px);
    display: block;
    width: 112px;
    height: 112px;
    padding: 8px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgb(0 0 0 / 20%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-50%) scale(0.92);
    transition: opacity 150ms ease, transform 150ms ease, visibility 150ms;
    pointer-events: none;
    z-index: 10;
  }

  .link-with-qr:hover .qr-code,
  .link-with-qr:focus-within .qr-code {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .qr-code,
  .switch-track,
  .switch-track::after {
    transition: none;
  }
}