/**
 * Primitive — Checkbox
 *
 * Expected HTML:
 *   <label class="ec-checkbox-label">
 *     <input type="checkbox" class="ec-checkbox" data-material="water">
 *     <span>Label text</span>
 *   </label>
 *
 * The label is the touch target (EC-STANDARDS.md: 44x44px minimum) —
 * the box itself is deliberately smaller and visual only. The
 * checkmark is drawn with a pure-CSS border trick rather than an icon
 * asset, since icon sourcing isn't decided yet (see icon.css).
 */

.ec-checkbox-label {
	display: inline-flex;
	align-items: center;
	gap: var(--ec-space-2);
	min-height: 2.75rem;
	cursor: pointer;
}

.ec-checkbox {
	appearance: none;
	flex-shrink: 0;
	width: 1.25rem;
	height: 1.25rem;
	border: 1px solid var(--ec-color-border);
	border-radius: var(--ec-radius-sm);
	background-color: var(--ec-color-surface);
	position: relative;
	cursor: pointer;
	transition:
		background-color var(--ec-duration-fast) var(--ec-ease-standard),
		border-color var(--ec-duration-fast) var(--ec-ease-standard);
}

.ec-checkbox:checked {
	background-color: var(--ec-material-color);
	border-color: var(--ec-material-color);
}

.ec-checkbox:checked::after {
	content: '';
	position: absolute;
	left: 0.35rem;
	top: 0.15rem;
	width: 0.3rem;
	height: 0.55rem;
	border: solid var(--ec-color-neutral-0);
	border-width: 0 2px 2px 0;
	transform: rotate(45deg);
}

.ec-checkbox:focus-visible {
	outline: 2px solid var(--ec-material-color);
	outline-offset: 2px;
}

.ec-checkbox[disabled] {
	cursor: not-allowed;
	opacity: 0.5;
}

.ec-checkbox--error {
	border-color: var(--ec-color-danger);
}