/*
 * Checkbox
 * Single + group, indeterminate state
 */

.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
}

.checkbox input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkbox-group.horizontal {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* Custom styled checkbox */
.checkbox-mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.checkbox-mark::after {
  content: '';
  display: block;
  width: 0.375rem;
  height: 0.25rem;
  border-left: 2px solid var(--color-text-inverse);
  border-bottom: 2px solid var(--color-text-inverse);
  transform: rotate(-45deg) translateY(-1px);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

input:checked + .checkbox-mark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

input:checked + .checkbox-mark::after {
  opacity: 1;
}

input:indeterminate + .checkbox-mark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

input:indeterminate + .checkbox-mark::after {
  border-left: 0;
  border-bottom: 0;
  width: 0.5rem;
  height: 0;
  border-top: 2px solid var(--color-text-inverse);
  transform: none;
  opacity: 1;
}

input:focus-visible + .checkbox-mark {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

input:disabled + .checkbox-mark {
  opacity: 0.5;
  cursor: not-allowed;
}