/* components/atoms/checkbox.css — átomo Checkbox (A05). */

.cmp-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  color: var(--text, inherit);
}

.cmp-checkbox--disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Esconde input nativo mas mantém acessível */
.cmp-checkbox__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Caixa visual */
.cmp-checkbox__box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--border-strong, #9ca3af);
  border-radius: 3px;
  background: var(--surface-card, #ffffff);
  transition: background-color 0.12s, border-color 0.12s;
  flex-shrink: 0;
}

.cmp-checkbox:hover:not(.cmp-checkbox--disabled) .cmp-checkbox__box {
  border-color: var(--accent, #2563eb);
}

/* Estado checked (✓) */
.cmp-checkbox__input:checked + .cmp-checkbox__box {
  background: var(--accent, #2563eb);
  border-color: var(--accent, #2563eb);
}

.cmp-checkbox__input:checked + .cmp-checkbox__box::after {
  content: '';
  width: 4px;
  height: 8px;
  border-right: 2px solid var(--text-on-accent, #ffffff);
  border-bottom: 2px solid var(--text-on-accent, #ffffff);
  transform: rotate(45deg) translate(-1px, -1px);
}

/* Estado indeterminate (—) */
.cmp-checkbox__input:indeterminate + .cmp-checkbox__box {
  background: var(--accent, #2563eb);
  border-color: var(--accent, #2563eb);
}
.cmp-checkbox__input:indeterminate + .cmp-checkbox__box::after {
  content: '';
  width: 8px;
  height: 2px;
  background: var(--text-on-accent, #ffffff);
  border-radius: 1px;
}

/* Focus */
.cmp-checkbox__input:focus-visible + .cmp-checkbox__box {
  outline: 2px solid var(--accent, #2563eb);
  outline-offset: 2px;
}

.cmp-checkbox__label {
  line-height: 1.3;
}