.datepicker {
  position: relative;
  display: inline-block;
  width: 100%;
}

.datepicker-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  height: calc(var(--spacing) * 9);
  padding: calc(var(--spacing) * 1) calc(var(--spacing) * 3);
  background-color: transparent;
  border: 1px solid var(--color-input);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 2px 0 oklch(0 0 0 / 0.05);
  text-align: left;
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--foreground);
  cursor: pointer;
  transition: color 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.datepicker-trigger:hover {
  border-color: var(--ring);
}

.datepicker-trigger:focus-visible {
  border-color: var(--ring);
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.datepicker-trigger__icon {
  flex-shrink: 0;
  color: var(--muted-foreground);
}

.datepicker-trigger__label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--foreground);
}

.datepicker-trigger__label--placeholder {
  color: var(--muted-foreground);
}

.datepicker-trigger[aria-expanded="true"] {
  border-color: var(--ring);
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.datepicker-popover {
  position: absolute;
  top: calc(100% + 0.375rem);
  left: 0;
  z-index: 50;
  min-width: 18rem;
  padding: 0.75rem;
  background: var(--card);
  color: var(--card-foreground);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px oklch(0 0 0 / 0.08);
}

.datepicker-popover[hidden] {
  display: none;
}

.datepicker-popover__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.datepicker-popover__title {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--foreground);
  flex: 1;
  text-align: center;
}

.datepicker-popover__nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--foreground);
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.datepicker-popover__nav:hover {
  background: var(--accent);
  color: var(--accent-foreground);
}

.datepicker-popover__nav:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.datepicker-popover__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted-foreground);
  text-align: center;
}

.datepicker-popover__weekdays > span {
  padding: 0.25rem 0;
}

.datepicker-popover__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.datepicker-cell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.25rem;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--foreground);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease;
}

.datepicker-cell:hover:not(.is-disabled):not(.is-selected) {
  background: var(--accent);
  color: var(--accent-foreground);
}

.datepicker-cell:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 1px;
}

.datepicker-cell.is-outside {
  color: var(--muted-foreground);
  opacity: 0.5;
}

.datepicker-cell.is-today {
  border-color: var(--ring);
}

.datepicker-cell.is-selected,
.datepicker-cell.is-range-start,
.datepicker-cell.is-range-end {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

.datepicker-cell.is-in-range,
.datepicker-cell.is-preview {
  background: oklch(from var(--primary) l c h / 0.18);
  color: var(--foreground);
  border-color: transparent;
}

.datepicker-cell.is-disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.datepicker-popover__time {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.datepicker-popover__time-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted-foreground);
  flex-shrink: 0;
}

.datepicker-popover__time-input {
  flex: 1;
  min-width: 0;
  height: 2.25rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

.datepicker-popover__footer {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.datepicker-popover__time + .datepicker-popover__footer {
  margin-top: 0.25rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border);
}

.datepicker-popover__action--primary {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

.datepicker-popover__action--primary:hover {
  background: oklch(from var(--primary) calc(l - 0.05) c h);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

.datepicker-popover__action {
  padding: 0.375rem 0.75rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--foreground);
  font-size: 0.8125rem;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.datepicker-popover__action:hover {
  background: var(--accent);
  color: var(--accent-foreground);
  border-color: var(--accent);
}

.datepicker-popover__action:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

@media (max-width: 480px) {
  .datepicker-popover {
    left: 50%;
    transform: translateX(-50%);
    min-width: min(20rem, calc(100vw - 2rem));
  }
}