/* ═══════════════════════════════════════════════════════════════
   Checkbox — component/form/input-checkbox.cpt.php

   Shared component, so it declares everything it needs from the
   global tokens only (--text-*, --border-*, --accent-blue, --radius-*),
   and carries an editorial variant below. Same split as auth.css:
   hub pages get the accent colour, page-*--editorial pages get
   ink-on-paper, because the editorial surfaces are deliberately
   monochrome and a saturated blue tick reads as a foreign object.

   The native input stays in the DOM and merely goes invisible — it is
   what the label click, the space bar, :focus-visible and every form
   read go through. Do not swap it for a div with a click handler.
   ═══════════════════════════════════════════════════════════════ */

.form-group--check {
    display: flex;
}

.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm, 0.5rem);
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* Invisible, not display:none — a hidden input is unfocusable and drops
   out of the tab order, which would make the box keyboard-unreachable. */
.form-check__input {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: 0;
    padding: 0;
    opacity: 0;
    pointer-events: none;
}

.form-check__box {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 1.05rem;
    height: 1.05rem;
    margin-top: 0.1rem;          /* optical alignment with the first line of text */
    border: 1px solid var(--border-hover, rgba(128, 128, 128, 0.4));
    border-radius: var(--radius-xs, 3px);
    background: transparent;
    color: transparent;
    font-size: 0.7rem;
    line-height: 1;
    transition: background var(--transition-fast, 150ms) var(--ease-out, ease),
                border-color var(--transition-fast, 150ms) var(--ease-out, ease),
                color var(--transition-fast, 150ms) var(--ease-out, ease);
}

.form-check__box i {
    /* Scaled rather than faded in: at 1.05rem a fading tick reads as a smudge. */
    transform: scale(0.6);
    transition: transform var(--transition-fast, 150ms) var(--ease-bounce, ease-out);
}

.form-check:hover .form-check__box {
    border-color: var(--text-secondary, #666);
}

.form-check__input:checked + .form-check__box {
    background: var(--accent-blue, #4c8dff);
    border-color: var(--accent-blue, #4c8dff);
    color: #fff;
}

.form-check__input:checked + .form-check__box i {
    transform: scale(1);
}

.form-check__input:focus-visible + .form-check__box {
    outline: 2px solid var(--accent-blue, #4c8dff);
    outline-offset: 2px;
}

.form-check__input:disabled + .form-check__box {
    opacity: 0.45;
}

.form-check__input:disabled ~ .form-check__text {
    opacity: 0.6;
}

.form-check__text {
    font-size: var(--text-sm, 0.875rem);
    line-height: 1.4;
    color: var(--text-secondary, #666);
}

.form-check:hover .form-check__text {
    color: var(--text-primary, #111);
}

.form-check__hint {
    display: block;
    margin-top: 0.15rem;
    font-size: var(--text-xs, 0.75rem);
    color: var(--text-muted, #888);
}

/* ── Editorial pages: ink on paper, no hue ─────────────────────── */

body[class*="--editorial"] .form-check__box {
    border: 1px solid var(--ed-ink-mute);
    border-radius: 0;
}

body[class*="--editorial"] .form-check:hover .form-check__box {
    border-color: var(--ed-ink);
}

body[class*="--editorial"] .form-check__input:checked + .form-check__box {
    background: var(--ed-ink);
    border-color: var(--ed-ink);
    color: var(--ed-paper);
}

body[class*="--editorial"] .form-check__input:focus-visible + .form-check__box {
    outline: 2px solid var(--ed-ink);
}

body[class*="--editorial"] .form-check__text {
    font-family: var(--ed-mono);
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    color: var(--ed-ink-mute);
}

body[class*="--editorial"] .form-check:hover .form-check__text {
    color: var(--ed-ink);
}

body[class*="--editorial"] .form-check__hint {
    font-family: var(--ed-mono);
    font-size: 0.64rem;
    color: var(--ed-ink-mute);
}