.datepicker {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: var(--space-xxs);
}

.datepicker__input {
  flex: 1;
  min-width: 0;
}

.datepicker__trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  flex-shrink: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.datepicker__trigger:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.datepicker__trigger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.datepicker__popover {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: var(--z-modal);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 260px;
  max-width: 300px;
}

.datepicker__heading {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.datepicker__select {
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
                    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: var(--space-xl);
  cursor: pointer;
}

.datepicker__select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.datepicker__row {
  display: block;
}

.datepicker__actions {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
  justify-content: flex-end;
}

.datepicker__btn {
  font-size: var(--font-size-sm);
  padding: var(--space-xxs) var(--space-md);
}