/* ════════════════════════════════════════════════════════════════════════════
   UI PARTS — chips/badges, filter row, pagination, breadcrumbs, accordion,
   proof strip, skeleton/empty states.
   (Pagination + breadcrumbs style the existing shared partial markup.)
   ════════════════════════════════════════════════════════════════════════════ */

/* ── Chips & badges ────────────────────────────────────────────────────────── */
.ao-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 36px;
  padding: var(--space-1) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-standard),
              background-color var(--dur-fast) var(--ease-standard),
              color var(--dur-fast) var(--ease-standard);
}
.ao-chip:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.ao-chip.is-active,
.ao-chip[aria-current="true"] {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-on-ink);
}

/* Filter row (testimonials service filter, case-study industries, sectors) */
.ao-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

/* Tech / meta badge — mono microtype */
.ao-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-bg-muted);
  color: var(--color-text-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  white-space: nowrap;
}
.ao-badge--accent { background: var(--color-accent-light); color: var(--color-accent); }
.ao-ink .ao-badge { background: var(--color-ink-soft); color: var(--color-on-ink-2); }

/* ── Pagination (styles the shared partials/pagination.php markup) ─────────── */
.pagination-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--section-pad-sm);
}
.pagination-summary { font-size: var(--text-sm); color: var(--color-text-4); font-family: var(--font-mono); }
.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}
.pagination-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-width: 40px;
  min-height: 40px;
  padding: 0 var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-text-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  font-variant-numeric: tabular-nums;
  transition: border-color var(--dur-fast) var(--ease-standard),
              background-color var(--dur-fast) var(--ease-standard),
              color var(--dur-fast) var(--ease-standard);
}
.pagination-link:hover { border-color: var(--color-border); color: var(--color-text); }
.pagination-item.active .pagination-link {
  background: var(--color-ink);
  color: var(--color-on-ink);
}
.pagination-item.disabled .pagination-link { opacity: 0.4; pointer-events: none; }
.pagination-ellipsis span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
  color: var(--color-text-4);
}

/* ── Breadcrumbs (styles the shared partials/breadcrumbs.php markup) ───────── */
.breadcrumbs {
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-bg);
}
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0 auto;
  padding: var(--space-3) var(--container-pad);
  max-width: var(--container-max);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
}
.breadcrumbs__item { display: inline-flex; align-items: center; gap: var(--space-2); }
.breadcrumbs__link { color: var(--color-text-4); }
.breadcrumbs__link:hover { color: var(--color-text); }
.breadcrumbs__sep { color: var(--color-border-strong); }
.breadcrumbs__current { color: var(--color-text-2); }

/* ── Accordion (FAQ) — <details class="ao-acc"> pattern ────────────────────── */
.ao-acc {
  border-bottom: 1px solid var(--color-border);
}
.ao-acc:first-of-type { border-top: 1px solid var(--color-border); }
.ao-acc__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  transition: color var(--dur-fast) var(--ease-standard);
}
.ao-acc__summary::-webkit-details-marker { display: none; }
.ao-acc__summary:hover { color: var(--color-accent); }
.ao-acc__icon {
  flex-shrink: 0;
  width: 20px; height: 20px;
  color: var(--color-text-4);
  transition: transform var(--dur-base) var(--ease-standard);
}
.ao-acc[open] .ao-acc__icon { transform: rotate(45deg); }
.ao-acc__body {
  padding: 0 0 var(--space-5);
  max-width: var(--measure);
  color: var(--color-text-3);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ── Proof strip / marquee ─────────────────────────────────────────────────── */
.ao-proof {
  padding-block: var(--space-6);
  border-block: 1px solid var(--color-border);
  overflow: hidden;
}
.ao-proof__label {
  display: block;
  text-align: center;
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-4);
}
.ao-proof__track {
  display: flex;
  gap: var(--space-3);
  width: max-content;
  will-change: transform;
}
.ao-proof__chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  font-size: var(--text-sm);
  color: var(--color-text-2);
  white-space: nowrap;
}
.ao-proof__chip svg { color: var(--color-accent); }

/* ── Skeleton / empty states ───────────────────────────────────────────────── */
.ao-skeleton {
  border-radius: var(--radius-md);
  background: linear-gradient(90deg,
    var(--color-bg-muted) 25%,
    var(--color-bg-soft) 50%,
    var(--color-bg-muted) 75%);
  background-size: 200% 100%;
  animation: ao-shimmer 1.4s linear infinite;
  color: transparent;
  user-select: none;
}
@keyframes ao-shimmer { to { background-position: -200% 0; } }

.ao-empty {
  padding: var(--section-pad-sm) var(--space-6);
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-3);
}
.ao-empty__title { font-weight: var(--weight-semi); color: var(--color-text-2); margin-bottom: var(--space-2); }

/* ── Alerts (form success / error flashes) ─────────────────────────────────── */
.ao-alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}
.ao-alert--success {
  background: var(--alert-success-bg);
  color: var(--alert-success-fg);
  border-color: var(--alert-success-border);
}
.ao-alert--error {
  background: var(--alert-error-bg);
  color: var(--alert-error-fg);
  border-color: var(--alert-error-border);
}

/* ── Gallery — main image + thumbnail switcher ─────────────────────────────── */
.ao-gallery__main {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-muted);
}
.ao-gallery__main img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.ao-gallery__thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.ao-gallery__thumb {
  width: 72px; height: 54px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-bg-muted);
  transition: border-color var(--dur-fast) var(--ease-standard);
}
.ao-gallery__thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.ao-gallery__thumb:hover { border-color: var(--color-border-strong); }
.ao-gallery__thumb.is-active { border-color: var(--color-accent); }
.ao-gallery__thumb:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ── Portfolio gallery lightbox ────────────────────────────────────────────── */
.ao-gallery__main { position: relative; display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; }
.ao-gallery__zoom-hint {
  position: absolute; bottom: var(--space-3); right: var(--space-3);
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-full);
  background: rgba(17, 17, 16, 0.55); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  opacity: 0; transform: translateY(4px); transition: opacity var(--ease-base), transform var(--ease-base);
  pointer-events: none;
}
.ao-gallery__main:hover .ao-gallery__zoom-hint,
.ao-gallery__main:focus-visible .ao-gallery__zoom-hint { opacity: 1; transform: translateY(0); }
.ao-gallery__main:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--radius-xl); }

.ao-lightbox { position: fixed; inset: 0; z-index: var(--z-toast); display: none; }
.ao-lightbox.is-open { display: block; }
.ao-lightbox__backdrop {
  position: absolute; inset: 0; background: rgba(10, 10, 9, 0.97);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.ao-lightbox.is-open .ao-lightbox__backdrop { animation: aoLbFade var(--dur-base) var(--ease-out); }

/* Shared frosted control surface */
.ao-lightbox__btn,
.ao-lightbox__nav,
.ao-lightbox__close {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: #f0f0ee; cursor: pointer;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  transition: background var(--ease-fast), border-color var(--ease-fast), transform var(--ease-fast);
}
.ao-lightbox__btn:hover,
.ao-lightbox__nav:hover,
.ao-lightbox__close:hover { background: rgba(255, 255, 255, 0.18); border-color: rgba(255, 255, 255, 0.30); }
.ao-lightbox__btn:active,
.ao-lightbox__nav:active,
.ao-lightbox__close:active { transform: scale(0.94); }
.ao-lightbox__btn:focus-visible,
.ao-lightbox__nav:focus-visible,
.ao-lightbox__close:focus-visible { outline: none; box-shadow: 0 0 0 2px rgba(10, 10, 9, 0.9), 0 0 0 4px var(--color-accent); }
.ao-lightbox__btn svg,
.ao-lightbox__nav svg,
.ao-lightbox__close svg { width: 20px; height: 20px; display: block; }

/* Close — top right */
.ao-lightbox__close {
  position: absolute; top: var(--space-4); right: var(--space-4); z-index: 3;
  width: 44px; height: 44px; border-radius: var(--radius-full);
}

/* Prev / next — vertically centred on the sides */
.ao-lightbox__nav {
  position: absolute; top: 50%; z-index: 3;
  width: 48px; height: 48px; border-radius: var(--radius-full);
  transform: translateY(-50%);
}
.ao-lightbox__nav:hover { transform: translateY(-50%) scale(1.06); }
.ao-lightbox__nav:active { transform: translateY(-50%) scale(0.94); }
.ao-lightbox__nav--prev { left: clamp(var(--space-3), 2vw, var(--space-6)); }
.ao-lightbox__nav--next { right: clamp(var(--space-3), 2vw, var(--space-6)); }
.ao-lightbox__nav[hidden] { display: none; }

/* Scroll / pan area */
.ao-lightbox__body {
  position: absolute; inset: 0; z-index: 1;
  overflow: auto; overscroll-behavior: contain;
  display: flex; justify-content: center; align-items: flex-start;
  padding: clamp(var(--space-4), 4vw, var(--space-12));
  cursor: grab;
}
.ao-lightbox__body.is-grabbing { cursor: grabbing; user-select: none; }
.ao-lightbox__img {
  display: block; height: auto; max-width: 1100px; width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  background: var(--color-surface);
  user-select: none; transition: width var(--ease-base);
}
.ao-lightbox.is-open .ao-lightbox__img { animation: aoLbRise var(--dur-base) var(--ease-out); }

/* Toolbar — floating control pill, bottom centre */
.ao-lightbox__toolbar {
  position: absolute; left: 50%; bottom: clamp(var(--space-4), 3vh, var(--space-8)); z-index: 3;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: var(--space-1);
  padding: var(--space-1);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
}
.ao-lightbox__toolbar .ao-lightbox__btn {
  width: 40px; height: 40px; border-radius: var(--radius-full);
  border-color: transparent; background: transparent; backdrop-filter: none;
}
.ao-lightbox__toolbar .ao-lightbox__btn:hover { background: rgba(255, 255, 255, 0.16); border-color: transparent; }
.ao-lightbox__count {
  min-width: 3.5em; padding: 0 var(--space-2); text-align: center;
  font-family: var(--font-mono); font-size: var(--text-sm);
  font-variant-numeric: tabular-nums; color: rgba(240, 240, 238, 0.9);
}
.ao-lightbox__count[hidden] { display: none; }
.ao-lightbox__divider { width: 1px; height: 20px; margin: 0 var(--space-1); background: rgba(255, 255, 255, 0.16); }

@keyframes aoLbFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes aoLbRise { from { opacity: 0; transform: translateY(8px) scale(0.99); } to { opacity: 1; transform: none; } }

@media (max-width: 480px) {
  .ao-lightbox__nav { width: 40px; height: 40px; }
  .ao-lightbox__close { width: 40px; height: 40px; }
}
@media (prefers-reduced-motion: reduce) {
  .ao-gallery__zoom-hint,
  .ao-lightbox__img { transition: none; }
  .ao-lightbox.is-open .ao-lightbox__backdrop,
  .ao-lightbox.is-open .ao-lightbox__img { animation: none; }
}

/* ── Scroll-to-top FAB (created by app.js) ─────────────────────────────────── */
.scroll-to-top {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: var(--z-toast);
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-2);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-standard),
              transform var(--dur-base) var(--ease-standard);
}
.scroll-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.scroll-to-top:hover { color: var(--color-text); border-color: var(--color-border-strong); }

@media (prefers-reduced-motion: reduce) {
  .ao-skeleton { animation: none; }
  .ao-acc__icon, .scroll-to-top { transition: none; }
}