/* ============================================================
   ARECH Feature Cards block — front-end styles.
   Port of `site/src/components/products-hub/ProductsHubFamilyGrid.astro`
   styles, BEM-renamed to `.arech-fc__*` and parameterised so the
   block adapts to 2/3/4 desktop columns via .arech-fc--cols-* class.
   ============================================================ */

.arech-fc {
    background: var(--paper-1);
    color: var(--ink-2);
    padding-block: var(--space-9);
    padding-inline: var(--container-px);
}
@media (min-width: 768px) {
    .arech-fc {
        padding-block: var(--space-10);
    }
}
@media (min-width: 1024px) {
    .arech-fc {
        padding-block: var(--space-11);
    }
}

.arech-fc__inner {
    max-width: var(--container);
    margin-inline: auto;
}

/* ---- Section head ---- */
.arech-fc__head {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    margin-bottom: var(--space-8);
    align-items: end;
}
@media (min-width: 1024px) {
    .arech-fc__head {
        grid-template-columns: 1.5fr 1fr;
        gap: var(--space-7);
    }
}

.arech-fc__eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--orange-text);
    margin-bottom: var(--space-3);
    display: inline-flex;
    align-items: center;
    gap: 12px;
}
.arech-fc__eyebrow::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--orange-text);
}

.arech-fc__title {
    font-family: var(--font-headline);
    font-weight: 600;
    font-size: clamp(32px, 4vw, 56px);
    line-height: 1.1;
    letter-spacing: -0.01em;
    color: var(--ink-1);
    margin: 0;
}
.arech-fc__accent {
    color: var(--orange-text);
}

.arech-fc__lead {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--ink-3);
    max-width: 48ch;
    margin: 0;
}

/* ---- Grid ---- */
.arech-fc__grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}
@media (min-width: 768px) {
    .arech-fc__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
}
@media (min-width: 1024px) {
    .arech-fc--cols-2 .arech-fc__grid { grid-template-columns: repeat(2, 1fr); }
    .arech-fc--cols-3 .arech-fc__grid { grid-template-columns: repeat(3, 1fr); }
    .arech-fc--cols-4 .arech-fc__grid { grid-template-columns: repeat(4, 1fr); }

    .arech-fc--cols-3 .arech-fc__cell[data-span="wide"] { grid-column: span 2; }
    .arech-fc--cols-4 .arech-fc__cell[data-span="wide"] { grid-column: span 2; }
}

.arech-fc__cell {
    display: flex;
}

/* ---- Card ---- */
.arech-fc__card {
    display: flex;
    flex-direction: column;
    width: 100%;
    background: var(--paper-0);
    border: 1px solid var(--hairline);
    border-radius: 4px;
    overflow: hidden;
    color: inherit;
    text-decoration: none;
    transition:
        border-color var(--motion-fast) var(--ease-standard),
        transform var(--motion-fast) var(--ease-standard),
        box-shadow var(--motion-fast) var(--ease-standard);
}
a.arech-fc__card:hover,
a.arech-fc__card:focus-visible {
    border-color: var(--orange-link);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(10, 10, 11, 0.08);
}
a.arech-fc__card:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 3px;
}

.arech-fc__img-wrap {
    position: relative;
    aspect-ratio: 16 / 11;
    overflow: hidden;
    background: var(--paper-3);
}
.arech-fc__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--motion-normal) var(--ease-standard);
}
a.arech-fc__card:hover .arech-fc__img {
    transform: scale(1.04);
}

.arech-fc__num-wrap {
    padding: var(--space-5) var(--space-5) 0;
}
.arech-fc__num {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--off-white);
    background: rgba(10, 10, 11, 0.65);
    padding: 4px 10px;
    border-radius: 2px;
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
}
.arech-fc__num--solo {
    position: static;
    display: inline-block;
    color: var(--orange-text);
    background: transparent;
    padding: 0;
    font-size: 22px;
    font-weight: 700;
}

.arech-fc__body {
    padding: var(--space-5) var(--space-5) var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.arech-fc__title3 {
    font-family: var(--font-headline);
    font-weight: 600;
    font-size: 22px;
    line-height: 1.25;
    color: var(--ink-1);
    margin: 0;
}
.arech-fc__body-text {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.6;
    color: var(--ink-3);
    margin: 0;
}
.arech-fc__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: var(--space-3);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--orange-link);
    transition: color var(--motion-fast) var(--ease-standard);
}
a.arech-fc__card:hover .arech-fc__cta {
    color: var(--orange-text);
}
.arech-fc__cta svg {
    transition: transform var(--motion-fast) var(--ease-standard);
}
a.arech-fc__card:hover .arech-fc__cta svg {
    transform: translateX(4px);
}

/* ---- Footer link ---- */
.arech-fc__foot {
    margin-top: var(--space-7);
    text-align: center;
}
.arech-fc__talk {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--orange-text);
    border-bottom: 1px solid var(--orange-link);
    transition: color var(--motion-fast) var(--ease-standard);
}
.arech-fc__talk:hover {
    color: var(--ink-1);
}
.arech-fc__talk svg {
    transition: transform var(--motion-fast) var(--ease-standard);
}
.arech-fc__talk:hover svg {
    transform: translateX(4px);
}

/* ---- Reveal stagger ---- */
.arech-fc .arech-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity var(--motion-reveal) var(--ease-standard),
        transform var(--motion-reveal) var(--ease-standard);
}
.arech-fc .arech-reveal.is-in {
    opacity: 1;
    transform: translateY(0);
}
.arech-fc .arech-reveal--s1 { transition-delay: var(--stagger-1); }
.arech-fc .arech-reveal--s2 { transition-delay: var(--stagger-2); }
.arech-fc .arech-reveal--s3 { transition-delay: var(--stagger-3); }

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
    .arech-fc .arech-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .arech-fc__card,
    .arech-fc__img,
    .arech-fc__cta svg,
    .arech-fc__talk svg {
        transition: none !important;
        transform: none !important;
    }
}

/* ---- Concrete edit-mode shim ---- */
.ccm-edit-mode .arech-fc {
    padding-block: var(--space-6);
}