.dpi {
  --dpi-hover-background: #e0f2fe;
  --dpi-hover-color: #0f172a;
  --dpi-selected-background: #0369a1;
  --dpi-selected-color: #ffffff;
  --dpi-focus-ring: #0284c7;
  position: relative;
  width: 100%;
}

.dpi__input {
  width: 100%;
  padding-right: 42px;
  font-variant-numeric: tabular-nums;
}

.dpi__toggle {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--primary, #0284c7);
  font-size: 1.25rem;
}

.dpi__toggle:hover,
.dpi__toggle:focus-visible {
  background: var(--surface-subtle, #f1f5f9);
}

.dpi__popup {
  position: absolute;
  z-index: 100;
  top: calc(100% + 6px);
  left: 0;
  width: min(320px, calc(100vw - 32px));
  padding: 14px;
  border: 1px solid var(--border, #cbd5e1);
  border-radius: 12px;
  background: var(--surface, #fff);
  color: var(--text, #0f172a);
  box-shadow: 0 14px 35px rgb(15 23 42 / 18%);
}

.dpi__popup[hidden] {
  display: none;
}

.dpi__header {
  display: grid;
  grid-template-columns: 36px 1fr 36px;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
}

.dpi__header button,
.dpi__grid button {
  min-width: 0;
  padding: 8px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text, #1e293b);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.dpi__header button:hover:not(:disabled),
.dpi__header button:focus-visible:not(:disabled),
.dpi__grid button:hover:not(:disabled),
.dpi__grid button:focus-visible:not(:disabled) {
  background: var(--dpi-hover-background);
  color: var(--dpi-hover-color);
  font-weight: 600;
}

.dpi__header button:focus-visible,
.dpi__grid button:focus-visible {
  outline: 2px solid var(--dpi-focus-ring);
  outline-offset: 2px;
}

.dpi__heading {
  font-size: 0.95rem;
  font-weight: 700;
}

.dpi__heading:disabled {
  opacity: 1;
}

.dpi__nav {
  font-size: 1.3rem;
}

.dpi__grid {
  display: grid;
  gap: 5px;
}

.dpi__grid--years,
.dpi__grid--months {
  grid-template-columns: repeat(3, 1fr);
}

.dpi__grid--days,
.dpi__weekdays {
  grid-template-columns: repeat(7, 1fr);
}

.dpi__grid--days .dpi__cell {
  aspect-ratio: 1;
  padding: 4px;
}

.dpi__weekdays {
  display: grid;
  margin-bottom: 4px;
  color: var(--muted, #64748b);
  font-size: 0.73rem;
  font-weight: 700;
  text-align: center;
}

.dpi__grid .dpi__cell.is-selected,
.dpi__grid .dpi__cell.is-selected:hover,
.dpi__grid .dpi__cell.is-selected:focus-visible {
  background: var(--dpi-selected-background);
  color: var(--dpi-selected-color) !important;
  font-weight: 700;
}

.dpi__cell.is-today:not(.is-selected) {
  box-shadow: inset 0 0 0 1px var(--primary, #0284c7);
}

.dpi__cell:disabled {
  cursor: not-allowed;
  opacity: 0.3;
}

.dpi__time {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border, #cbd5e1);
}

.dpi__time label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.85rem;
  font-weight: 700;
}

.dpi__time input {
  width: 112px;
}

.dpi__error {
  min-height: 18px;
  margin-top: 4px;
  color: var(--danger, #dc2626);
  font-size: 0.75rem;
}

.dpi__input[aria-invalid="true"] {
  border-color: var(--danger, #dc2626);
}

@media (max-width: 420px) {
  .dpi__popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
}