/* ===== Checkbox Component ===== */

.ui-checkbox-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ui-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.ui-checkbox input {
    display: none;
}

/* --- Checkbox box --- */

.checkbox-box {
    width: 18px;
    height: 18px;
    background: var(--checkbox-background, var(--meb-surface-input, var(--meb-surface-card)));
    border: 1px solid var(--checkbox-border, var(--meb-border-input, var(--meb-border-subtle)));
    border-radius: 3px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.ui-checkbox input:checked + .checkbox-box {
    background: var(--checkbox-border-focus, var(--meb-accent-primary));
    border-color: var(--checkbox-border-focus, var(--meb-border-accent));
}

/* Checkmark indicator */
.ui-checkbox input:checked + .checkbox-box::after {
    content: '';
    display: block;
    width: 5px;
    height: 9px;
    border: solid var(--checkbox-checkmark, var(--meb-text-inverse));
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

/* --- Label and error --- */

.checkbox-label {
    color: var(--checkbox-foreground, var(--meb-text-default));
    font-size: var(--text-md);
    font-weight: var(--weight-regular);
    user-select: none;
}

.checkbox-error {
    color: var(--checkbox-border-error, var(--meb-accent-danger));
    font-size: var(--text-xs);
}

/* --- Focus ring --- */

.ui-checkbox input:focus-visible + .checkbox-box {
    outline: none;
    border-color: var(--checkbox-border-focus, var(--meb-border-accent));
    box-shadow: var(--focus-ring-shadow, var(--meb-button-primary-focus-shadow));
}

/* --- Variant: Default --- */

.ui-checkbox-wrapper.variant-default .checkbox-box {
    background: var(--checkbox-background, var(--meb-surface-input, var(--meb-surface-card)));
    border: 1px solid var(--checkbox-border, var(--meb-border-input, var(--meb-border-subtle)));
}

/* --- Variant: Outlined --- */

.ui-checkbox-wrapper.variant-outlined .checkbox-box {
    background: transparent;
    border: 1px solid var(--checkbox-border, var(--meb-border-input, var(--meb-border-subtle)));
}

/* --- Variant: Filled --- */

.ui-checkbox-wrapper.variant-filled .checkbox-box {
    background: var(--checkbox-background, var(--meb-surface-input-filled));
    border: 1px solid transparent;
}

/* --- Disabled state --- */

.ui-checkbox-wrapper.disabled {
    opacity: 0.6;
    pointer-events: none;
}

.ui-checkbox-wrapper.disabled .checkbox-box {
    background: var(--checkbox-surface-disabled, var(--meb-surface-disabled));
    border-color: var(--checkbox-surface-disabled, var(--meb-surface-disabled));
}

.ui-checkbox-wrapper.disabled .checkbox-label {
    color: var(--checkbox-text-disabled, var(--meb-text-muted));
}

/* --- Error state --- */

.ui-checkbox-wrapper.error .checkbox-box {
    border-color: var(--checkbox-border-error, var(--meb-accent-danger));
}