/* ─────────────────────────────────────────────────────────────────
   Block: image-blocks (Team 8)
   Modern responsive image grid with consistent aspect-ratio system,
   hover overlay (gradient + caption + arrow), and admin-driven layout.
   Tokens: --ds-* only.
   ───────────────────────────────────────────────────────────── */

.block-image-blocks .image-blocks-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ds-space-5);
  width: 100%;
}

/* Column counts ------------------------------------------------ */
.block-image-blocks .image-blocks-grid.ib-cols-1 { grid-template-columns: minmax(0, 1fr); }
.block-image-blocks .image-blocks-grid.ib-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.block-image-blocks .image-blocks-grid.ib-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.block-image-blocks .image-blocks-grid.ib-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.block-image-blocks .image-blocks-grid.ib-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.block-image-blocks .image-blocks-grid.ib-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* Gap presets -------------------------------------------------- */
.block-image-blocks .image-blocks-grid.ib-gap-tight  { gap: var(--ds-space-3); }
.block-image-blocks .image-blocks-grid.ib-gap-normal { gap: var(--ds-space-5); }
.block-image-blocks .image-blocks-grid.ib-gap-wide   { gap: var(--ds-space-7); }

/* Card surface ------------------------------------------------- */
.block-image-blocks .image-blocks-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--scheme-card-bg, var(--ds-paper));
  border-radius: var(--ds-radius-lg);
  overflow: hidden;
  box-shadow: var(--ds-shadow-sm);
  transition: transform var(--ds-duration, 220ms) var(--ds-ease-out, ease-out),
              box-shadow var(--ds-duration, 220ms) var(--ds-ease-out, ease-out);
}

.block-image-blocks .image-blocks-card.is-linked:hover,
.block-image-blocks .image-blocks-card.is-linked:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--ds-shadow-md);
}

.block-image-blocks .image-blocks-card__inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Wide variant — text + image side by side -------------------- */
.block-image-blocks .image-blocks-card--wide {
  grid-column: 1 / -1;
}

.block-image-blocks .image-blocks-card--wide .image-blocks-card__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: stretch;
}

.block-image-blocks .image-blocks-card--wide .image-blocks-text {
  padding: var(--ds-space-7) var(--ds-space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Markdown body styling -------------------------------------- */
/* SENIOR-T2: h1/h2 may be Anton uppercase; h3/h4 must be humanist DM Sans
   sentence-case (ds-h3-humane / ds-h4-humane spec) so older readers retain
   word-shape cues. */
.block-image-blocks .image-blocks-text h1,
.block-image-blocks .image-blocks-text h2 {
  font-family: var(--ds-font-display, var(--ds-font-heading));
  font-weight: 400;
  letter-spacing: 0.005em;
  color: var(--scheme-card-fg, var(--ds-ink));
  margin: 0 0 var(--ds-space-3) 0;
  line-height: var(--ds-lh-display, 1.15);
  text-transform: uppercase;
}
.block-image-blocks .image-blocks-text h3,
.block-image-blocks .image-blocks-text h4 {
  font-family: var(--ds-font-body);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--scheme-card-fg, var(--ds-ink));
  margin: 0 0 var(--ds-space-3) 0;
  line-height: var(--ds-lh-display, 1.2);
  text-transform: none;
}
.block-image-blocks .image-blocks-text h2 { font-size: var(--ds-fs-display-md); }
.block-image-blocks .image-blocks-text h3 { font-size: var(--ds-fs-h3, 1.5rem); font-weight: 700; }
.block-image-blocks .image-blocks-text h4 { font-size: var(--ds-fs-h4, 1.25rem); font-weight: 600; }

.block-image-blocks .image-blocks-text p {
  font-family: var(--ds-font-body);
  font-size: var(--ds-fs-body);
  line-height: var(--ds-lh-body, 1.6);
  color: var(--scheme-fg-soft, var(--ds-ink));
  margin: 0 0 var(--ds-space-3) 0;
  max-width: 60ch;
}
.block-image-blocks .image-blocks-text p:last-child { margin-bottom: 0; }

/* WAVE3-F04 (2026-05-08) — F-T4-03: lift inline anchor to --ds-cta-dk on light
   schemes (3.26:1 → 4.5:1+ on paper) and Pattern C scheme-scoped overrides for
   dark/colored schemes so the link inherits scheme-fg (white) and never produces
   orange-on-rust. Doctrine §90-110 + §160. */
.block-image-blocks .image-blocks-text a {
  color: var(--ds-cta-dk, var(--ds-cta));
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
.block-image-blocks .image-blocks-text a:hover { color: var(--ds-cta, var(--ds-cta-dk)); }

/* Pattern C — switch to scheme-fg on colored / dark schemes to avoid
   brand-on-brand collisions (orange-on-rust, orange-on-ink, etc). */
.scheme-accent .block-image-blocks .image-blocks-text a,
.scheme-trust  .block-image-blocks .image-blocks-text a,
.scheme-ink    .block-image-blocks .image-blocks-text a,
.scheme-steel  .block-image-blocks .image-blocks-text a {
  color: var(--scheme-fg);
}
.scheme-accent .block-image-blocks .image-blocks-text a:hover,
.scheme-trust  .block-image-blocks .image-blocks-text a:hover,
.scheme-ink    .block-image-blocks .image-blocks-text a:hover,
.scheme-steel  .block-image-blocks .image-blocks-text a:hover {
  color: var(--scheme-fg-soft, var(--scheme-fg));
}

/* Image frame + aspect ratios -------------------------------- */
.block-image-blocks .image-blocks-image {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.04);
  /* Modern: aspect-ratio property */
  aspect-ratio: 4 / 3;
}

/* Aspect ratio variants on grid (default for all cards) */
.block-image-blocks .image-blocks-grid.ib-ratio-16x9 .image-blocks-image { aspect-ratio: 16 / 9; }
.block-image-blocks .image-blocks-grid.ib-ratio-4x3  .image-blocks-image { aspect-ratio: 4 / 3; }
.block-image-blocks .image-blocks-grid.ib-ratio-1x1  .image-blocks-image { aspect-ratio: 1 / 1; }
.block-image-blocks .image-blocks-grid.ib-ratio-3x4  .image-blocks-image { aspect-ratio: 3 / 4; }
.block-image-blocks .image-blocks-grid.ib-ratio-21x9 .image-blocks-image { aspect-ratio: 21 / 9; }

/* Per-card override */
.block-image-blocks .image-blocks-card.ib-ratio-16x9 .image-blocks-image { aspect-ratio: 16 / 9; }
.block-image-blocks .image-blocks-card.ib-ratio-4x3  .image-blocks-image { aspect-ratio: 4 / 3; }
.block-image-blocks .image-blocks-card.ib-ratio-1x1  .image-blocks-image { aspect-ratio: 1 / 1; }
.block-image-blocks .image-blocks-card.ib-ratio-3x4  .image-blocks-image { aspect-ratio: 3 / 4; }
.block-image-blocks .image-blocks-card.ib-ratio-21x9 .image-blocks-image { aspect-ratio: 21 / 9; }

/* Padding-bottom fallback for very old browsers (no aspect-ratio support).
   Modern browsers ignore this because aspect-ratio takes precedence. */
@supports not (aspect-ratio: 1) {
  .block-image-blocks .image-blocks-image { height: 0; padding-bottom: 75%; }
  .block-image-blocks .image-blocks-grid.ib-ratio-16x9 .image-blocks-image { padding-bottom: 56.25%; }
  .block-image-blocks .image-blocks-grid.ib-ratio-4x3  .image-blocks-image { padding-bottom: 75%; }
  .block-image-blocks .image-blocks-grid.ib-ratio-1x1  .image-blocks-image { padding-bottom: 100%; }
  .block-image-blocks .image-blocks-grid.ib-ratio-3x4  .image-blocks-image { padding-bottom: 133.33%; }
  .block-image-blocks .image-blocks-grid.ib-ratio-21x9 .image-blocks-image { padding-bottom: 42.86%; }
  .block-image-blocks .image-blocks-image > .image-blocks-image__img { position: absolute; inset: 0; }
}

.block-image-blocks .image-blocks-image__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  margin: 0;
  transition: transform var(--ds-duration-slow, 480ms) var(--ds-ease-out, ease-out);
}

/* Slight zoom on hover for linked cards */
@media (hover: hover) {
  .block-image-blocks .image-blocks-card.is-linked:hover .image-blocks-image__img,
  .block-image-blocks .image-blocks-card.is-linked:focus-within .image-blocks-image__img {
    transform: scale(1.04);
  }
}

/* When the card is wide, image fills its column at any height */
.block-image-blocks .image-blocks-card--wide .image-blocks-image {
  aspect-ratio: auto;
  min-height: 100%;
}
.block-image-blocks .image-blocks-card--wide .image-blocks-image > .image-blocks-image__img {
  position: absolute;
  inset: 0;
  height: 100%;
}

/* Hover overlay ------------------------------------------------ */
/* WAVE3-F04 (2026-05-08) — F-T4-06: Pattern B local scheme rebind. The overlay
   is a self-contained dark scrim that floats over a photo. On a .scheme-paper
   ancestor, --scheme-fg is set (to ink), so the `#fff` fallback never fires —
   captions paint BLACK over the dark scrim. Rebind locally to white-on-dark
   tokens so descendants reading --scheme-fg / --ds-ink resolve correctly.
   Doctrine §63-89 + §175. */
.block-image-blocks .image-blocks-overlay {
  --scheme-bg: rgba(0, 0, 0, 0.7);
  --scheme-fg: #fff;
  --scheme-fg-soft: rgba(255, 255, 255, 0.92);
  --scheme-fg-mute: rgba(255, 255, 255, 0.78);
  --scheme-rule: rgba(255, 255, 255, 0.18);
  /* Defensive — catches descendants that wrongly read --ds-ink directly. */
  --ds-ink: #fff;
  --ds-ink-soft: rgba(255, 255, 255, 0.92);
  --ds-ink-mute: rgba(255, 255, 255, 0.78);

  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--ds-space-5);
  color: var(--scheme-fg);
  z-index: 2;
  pointer-events: none;
  /* SENIOR-T2: floor scrim opacity at 0.7 at the bottom so caption hits
     7:1 contrast on any source image */
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, max(var(--ib-overlay-opacity, 0.65), 0.7)) 0%,
    rgba(0, 0, 0, calc(max(var(--ib-overlay-opacity, 0.65), 0.7) * 0.55)) 45%,
    rgba(0, 0, 0, 0) 100%
  );
  opacity: 1;
  transition: opacity var(--ds-duration, 220ms) var(--ds-ease-out, ease-out);
}

/* Overlay color tokens */
.block-image-blocks .image-blocks-grid.ib-overlay-ink .image-blocks-overlay {
  background: linear-gradient(to top, color-mix(in srgb, var(--ds-ink) calc(var(--ib-overlay-opacity, 0.65) * 100%), transparent) 0%, transparent 100%);
}
.block-image-blocks .image-blocks-grid.ib-overlay-cta .image-blocks-overlay {
  background: linear-gradient(to top, color-mix(in srgb, var(--ds-cta) calc(var(--ib-overlay-opacity, 0.65) * 100%), transparent) 0%, transparent 100%);
}
.block-image-blocks .image-blocks-grid.ib-overlay-accent .image-blocks-overlay {
  background: linear-gradient(to top, color-mix(in srgb, var(--ds-accent) calc(var(--ib-overlay-opacity, 0.65) * 100%), transparent) 0%, transparent 100%);
}

/* Show/hide overlay on hover for desktop (touch keeps it visible) */
@media (hover: hover) {
  .block-image-blocks .image-blocks-card.has-caption .image-blocks-overlay { opacity: 0; }
  .block-image-blocks .image-blocks-card.has-caption:hover .image-blocks-overlay,
  .block-image-blocks .image-blocks-card.has-caption:focus-within .image-blocks-overlay { opacity: 1; }
}

.block-image-blocks .image-blocks-overlay__title {
  /* SENIOR-T2: overlay h3 is a humanist heading (sentence-case DM Sans), not
     Anton uppercase. Keep at 24px+ floor via display-sm (~1.5rem = 24px). */
  font-family: var(--ds-font-body);
  font-size: var(--ds-fs-display-sm);
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 var(--ds-space-2) 0;
  line-height: var(--ds-lh-display, 1.2);
  color: var(--scheme-fg);
  text-transform: none;
}

.block-image-blocks .image-blocks-overlay__subtitle {
  font-family: var(--ds-font-body);
  /* SENIOR-T2: 16px floor + full white (was 82% opacity → fails 7:1) */
  font-size: var(--ds-fs-body-sm, 1rem);
  line-height: var(--ds-lh-body, 1.6);
  margin: 0 0 var(--ds-space-3) 0;
  color: var(--scheme-fg);
}

.block-image-blocks .image-blocks-overlay__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--ds-space-2);
  font-family: var(--ds-font-body);
  /* SENIOR-T2: drop all-caps + tracking; 18px sentence-case is more readable */
  font-size: var(--ds-fs-body, 1.125rem);
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0;
  color: var(--scheme-fg);
}
.block-image-blocks .image-blocks-overlay__cta svg {
  transition: transform var(--ds-duration, 220ms) var(--ds-ease-out, ease-out);
}
.block-image-blocks .image-blocks-card.is-linked:hover .image-blocks-overlay__cta svg,
.block-image-blocks .image-blocks-card.is-linked:focus-within .image-blocks-overlay__cta svg {
  transform: translateX(3px);
}

/* Whole-card click target ------------------------------------ */
.block-image-blocks .image-blocks-card__link {
  position: absolute;
  inset: 0;
  z-index: 3;
  text-decoration: none;
  color: transparent;
  outline: none;
}
.block-image-blocks .image-blocks-card__link:focus-visible {
  /* SENIOR-T2: high-contrast dual-color focus ring (inset because card is
     edge-to-edge) */
  outline: none;
  box-shadow: inset 0 0 0 3px var(--ds-cta), inset 0 0 0 5px rgba(255,255,255,.95);
  border-radius: var(--ds-radius-lg);
}
.block-image-blocks .image-blocks-card__link .visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Disable hover overlay on data-overlay="off" or touch */
.block-image-blocks .image-blocks-grid[data-overlay="off"] .image-blocks-overlay { display: none; }

/* Responsive collapse ---------------------------------------- */
@media (max-width: 992px) {
  .block-image-blocks .image-blocks-grid.ib-cols-3,
  .block-image-blocks .image-blocks-grid.ib-cols-4,
  .block-image-blocks .image-blocks-grid.ib-cols-5,
  .block-image-blocks .image-blocks-grid.ib-cols-6 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .block-image-blocks .image-blocks-card--wide .image-blocks-card__inner {
    grid-template-columns: 1fr;
  }
  .block-image-blocks .image-blocks-card--wide .image-blocks-text {
    padding: var(--ds-space-5);
  }
  .block-image-blocks .image-blocks-card--wide .image-blocks-image {
    min-height: 240px;
    aspect-ratio: 16 / 9;
  }
  .block-image-blocks .image-blocks-card--wide .image-blocks-image > .image-blocks-image__img {
    position: absolute;
    inset: 0;
  }
}

@media (max-width: 600px) {
  /* W9-A15: must override .ib-cols-N specificity to collapse to 1 column on phones */
  .block-image-blocks .image-blocks-grid,
  .block-image-blocks .image-blocks-grid.ib-cols-1,
  .block-image-blocks .image-blocks-grid.ib-cols-2,
  .block-image-blocks .image-blocks-grid.ib-cols-3,
  .block-image-blocks .image-blocks-grid.ib-cols-4,
  .block-image-blocks .image-blocks-grid.ib-cols-5,
  .block-image-blocks .image-blocks-grid.ib-cols-6 {
    grid-template-columns: minmax(0, 1fr);
  }
  .block-image-blocks .image-blocks-card--wide .image-blocks-text {
    padding: var(--ds-space-4);
  }
  .block-image-blocks .image-blocks-overlay {
    padding: var(--ds-space-4);
  }
  /* SWEEP-A1: caption can overflow on 375px when title is long. Allow shrink
     and wrap, and tighten line-height so two-line titles don't bleed past
     the gradient scrim. T04-noted breakpoint specificity fight at 600px is
     resolved here by riding the same query as the column collapse. */
  .block-image-blocks .image-blocks-overlay__title {
    font-size: var(--ds-fs-display-sm, 1.5rem);
    line-height: 1.2;
    overflow-wrap: anywhere;
    word-break: break-word;
    hyphens: auto;
  }
  .block-image-blocks .image-blocks-overlay__subtitle {
    overflow-wrap: anywhere;
    word-break: break-word;
  }
}

/* ─────────────────────────────────────────────────────────────────
   SWEEP-A1 (2026-05-08) — Sticky CTA bottom-clearance
   The site-wide #acme-sticky-cta / .acme-cta-call bar (injected by
   acme-enhance.js, owned by coord) covers the last image-blocks card
   at viewports ≤900px. Detector flagged 162×53 + 160×53 px overlaps
   between .image-blocks-card__link and .acme-cta-* on 375 viewport.
   Reserve --ds-sticky-cta-clearance (96px) so the last card sits
   above the sticky bar when scrolled to the page bottom AND when an
   in-page #anchor jumps a card into view.
   ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .block-image-blocks {
    padding-bottom: calc(var(--ds-space-5, 1.5rem) + var(--ds-sticky-cta-clearance, 96px));
  }
  .block-image-blocks .image-blocks-card {
    /* Card-link covers inset:0 of card; without this, scrollIntoView
       parks the card under the sticky bar. */
    scroll-margin-block-end: var(--ds-sticky-cta-clearance, 96px);
  }
}

/* ─────────────────────────────────────────────────────────────────
   FIX-T8 Wave-6 — Image-Scaling Guard
   Hard-cap all <img> inside this block: never overflow container,
   never exceed container height. Enforce object-fit cover on the
   ratio-constrained <figure>. Also clamp the figure max-height so
   tall portraits cannot blow the column out.
   ───────────────────────────────────────────────────────────── */
.block-image-blocks img,
.block-image-blocks .image-blocks-image__img {
  max-width: 100%;
  max-height: 100%;
  height: auto;
  width: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
}
.block-image-blocks .image-blocks-image,
.block-image-blocks .image-blocks-card {
  max-width: 100%;
  overflow: hidden;
}
.block-image-blocks .image-blocks-image {
  /* Hard ceiling so a tall ratio (3:4) cannot stretch a row beyond 80vh */
  max-height: 80vh;
}
/* When .image-blocks-image fills via aspect-ratio, the img must absolutely cover */
.block-image-blocks .image-blocks-image > .image-blocks-image__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
/* Prevent inline width="" / height="" attribute overrides from upscaling */
.block-image-blocks img[width],
.block-image-blocks img[height] {
  width: 100% !important;
  height: 100% !important;
}

/* ─────────────────────────────────────────────────────────────────
   W9-A15 — Image-fit modifier (mirrors image-blocks-sm pattern)
   COVER (default): photographic source — fill the frame, allow crop.
   CONTAIN: portrait / screenshot — letterbox against --ds-paper, no crop.
   ───────────────────────────────────────────────────────────── */
.block-image-blocks .image-blocks-card.ib-fit-contain .image-blocks-image {
  background: var(--ds-paper);
  padding: var(--ds-space-2);
}
.block-image-blocks .image-blocks-card.ib-fit-contain .image-blocks-image__img {
  object-fit: contain !important;
  object-position: center;
}

/* ─────────────────────────────────────────────────────────────────
   W9-A15 — Caption-overlay readability guard
   The figcaption is positioned over the image. When admins set a
   low overlay_opacity on a light-toned image the title/subtitle
   become unreadable. Add a small per-element scrim so titles read
   on any background while keeping the gradient subtle.
   ───────────────────────────────────────────────────────────── */
.block-image-blocks .image-blocks-overlay__title,
.block-image-blocks .image-blocks-overlay__subtitle,
.block-image-blocks .image-blocks-overlay__cta {
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55);
}