/* Code slots (js/code-slots.js). Colours come from the page through the
   --cs-* variables; the defaults are the dark theme. */
.code-slots {
  --cs-accent: #f5f5f5;
  --cs-ink: #f5f5f5;
  --cs-slot: #27272a;
  --cs-digit: #18181b;
  --cs-danger: #ff3b30;
  --cs-size: 44px;
  --cs-height: 52px;
  --cs-gap: 8px;
  --cs-radius: 12px;
  --cs-font: 22px;
  position: relative;
  display: inline-block;
}
.code-slots.light {
  --cs-accent: #0b0b0d;
  --cs-ink: #0b0b0d;
  --cs-slot: #ececef;
  --cs-digit: #ffffff;
}
.code-slots__row {
  position: relative;
  display: inline-flex;
  gap: var(--cs-gap);
  cursor: text;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 200ms ease;
}
.code-slots__row[data-disabled] { opacity: .5; cursor: not-allowed; }
.code-slots__input {
  position: absolute;
  inset: 0;
  z-index: 4;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: transparent;
  caret-color: transparent;
  font-size: 16px;
  opacity: 0;
  cursor: inherit;
  -webkit-appearance: none;
  appearance: none;
}
.code-slots__wash {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  border-radius: var(--cs-radius);
  background: var(--cs-accent);
  color: var(--cs-digit);
  pointer-events: none;
}
.code-slots__check { display: grid; place-items: center; width: calc(var(--cs-size) * .6); height: calc(var(--cs-size) * .6); }
.code-slots__check svg { width: 100%; height: 100%; }
.code-slots__slot {
  position: relative;
  width: var(--cs-size);
  height: var(--cs-height);
  border-radius: var(--cs-radius);
  overflow: hidden;
  background: var(--cs-slot);
  transition: background-color 200ms ease;
  user-select: none;
  -webkit-user-select: none;
}
.code-slots__fill {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--cs-accent);
  transform-origin: center;
  transform: scale(0);
  transition: background-color 200ms ease;
}
@media (hover: hover) and (pointer: fine) {
  .code-slots__row[data-status='idle']:not([data-disabled]):hover .code-slots__slot:not([data-active]) {
    background: color-mix(in srgb, var(--cs-ink) 4%, var(--cs-slot));
  }
}
.code-slots__slot[data-active] { background: color-mix(in srgb, var(--cs-ink) 8%, var(--cs-slot)); }
.code-slots__row[data-status='error'] .code-slots__slot { background: color-mix(in srgb, var(--cs-danger) 20%, var(--cs-slot)); }
.code-slots__row[data-status='error'] .code-slots__fill { background: var(--cs-danger); }
.code-slots__digit {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  color: var(--cs-digit);
  font-family: inherit;
  font-size: var(--cs-font);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  opacity: 0;
}
.code-slots__caret {
  position: absolute;
  z-index: 3;
  top: 25%;
  left: calc(var(--cs-size) / 2 - .75px);
  width: 1.5px;
  height: 50%;
  opacity: 0;
  pointer-events: none;
  transition: transform 300ms cubic-bezier(0.23, 1, 0.32, 1);
}
.code-slots__caret[data-show] { opacity: 1; }
.code-slots__caret-line {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--cs-ink);
  animation: code-slots-blink 1s linear infinite;
}
@keyframes code-slots-blink { 0%, 49.9% { opacity: 1; } 50%, 100% { opacity: 0; } }
.code-slots__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
@media (max-width: 360px) {
  .code-slots { --cs-size: 40px; --cs-height: 48px; --cs-gap: 6px; --cs-font: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .code-slots__caret { transition: none; }
  .code-slots__caret-line { animation: none; }
}