/* ════════════════════════════════════════════════════
   PORTFOLIO PAGE — extends home-page.css design system.
   Two-column layout: a sticky left filter rail (Services
   + Industries facets) and the project grid on the right.
   Cards reuse the homepage .portfolio-card* styles.
   Relies on home-page.css for: .container, .eyebrow,
   .page-hero*, .hero-*, .portfolio-* cards, nav, footer,
   .cta-section, .reveal.
   ════════════════════════════════════════════════════ */

.portfolio-page {
  background: var(--off-white);
  padding: 64px 0 112px;
}

.hero-cut {
  background: var(--off-white);
}

.pf-layout {
  display: grid;
  grid-template-columns: 248px 1fr;
  gap: 56px;
  align-items: start;
}

/* ─── SIDEBAR ──────────────────────────────────────── */
.pf-sidebar {
  position: sticky;
  top: 100px;
}

.pf-sidebar-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}

.pf-sidebar-title {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--navy-dk);
}

.pf-clear {
  font-family: var(--body);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--tan-dk);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.pf-clear:hover { color: var(--navy); border-bottom-color: var(--navy); }

.pf-facet-group + .pf-facet-group { margin-top: 30px; }

.pf-facet-heading {
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tan-dk);
  margin-bottom: 12px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--border);
}

.pf-facet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.pf-facet {
  width: 100%;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 8px 9px;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: background 160ms var(--ease);
}

/* Empty facets (0 projects) are shown for completeness but not selectable. */
.pf-facet--empty,
.pf-facet:disabled {
  cursor: default;
  opacity: 0.42;
}

@media (hover: hover) and (pointer: fine) {
  .pf-facet:not(:disabled):hover { background: var(--white); }
  .pf-facet:not(:disabled):hover .pf-facet-label { color: var(--navy-dk); }
}

.pf-facet:focus-visible {
  outline: 2px solid var(--tan);
  outline-offset: 1px;
}

/* Checkbox indicator */
.pf-facet-box {
  position: relative;
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  border: 1.5px solid var(--steel);
  border-radius: 5px;
  background: var(--white);
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}

.pf-facet-box::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1.5px;
  width: 5px;
  height: 9px;
  border: solid var(--navy-dk);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform 180ms var(--ease);
}

.pf-facet-label {
  flex: 1;
  font-family: var(--body);
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 160ms var(--ease);
}

.pf-facet-count {
  font-family: var(--body);
  font-size: 12px;
  font-weight: 500;
  color: #9aa6ad;
  font-variant-numeric: tabular-nums;
}

/* Selected facet */
.pf-facet[aria-checked="true"] .pf-facet-box {
  background: var(--tan);
  border-color: var(--tan);
}
.pf-facet[aria-checked="true"] .pf-facet-box::after {
  transform: rotate(45deg) scale(1);
}
.pf-facet[aria-checked="true"] .pf-facet-label {
  color: var(--navy-dk);
  font-weight: 700;
}

/* ─── RESULTS GRID ─────────────────────────────────── */
.pf-card .portfolio-card-title { margin-top: 0; }
.pf-tag-date { color: var(--muted); background: transparent; padding-left: 0; }

/* Cards filtered out: fade + shrink, then removed from layout via [hidden]. */
.pf-card {
  transition: transform 360ms var(--ease), box-shadow 360ms var(--ease),
              border-color 360ms var(--ease), opacity 280ms var(--ease);
}

.pf-card.pf-hide {
  opacity: 0;
  transform: scale(0.96);
  pointer-events: none;
}

/* Re-entering cards rise back in. */
.pf-card.pf-show-in {
  animation: pf-card-in 0.4s var(--ease) both;
}

@keyframes pf-card-in {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

.pf-empty {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--body);
  font-size: 15px;
  color: var(--muted);
  padding: 56px 0;
}

/* ─── ARCHIVE: service filter (link-based, single-select) ── */
.pf-facet--active .pf-facet-box {
  background: var(--tan);
  border-color: var(--tan);
}
.pf-facet--active .pf-facet-box::after {
  transform: rotate(45deg) scale(1);
}
.pf-facet--active .pf-facet-label {
  color: var(--navy-dk);
  font-weight: 700;
}
@media (hover: hover) and (pointer: fine) {
  .pf-facet:hover { background: var(--white); }
  .pf-facet:hover .pf-facet-label { color: var(--navy-dk); }
}
.pf-facet:focus-visible {
  outline: 2px solid var(--tan);
  outline-offset: 1px;
}

/* In-place filter/pagination: dim the grid while the next set loads. */
.pf-results { transition: opacity 180ms var(--ease); }
.pf-results.pf-loading { opacity: 0.45; pointer-events: none; }
/* (.portfolio-card--img / .portfolio-card-img live in home-page.css — shared.) */

/* ─── ARCHIVE: pagination ──────────────────────────── */
.pf-pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 64px;
}

.pf-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 44px;
  height: 44px;
  padding: 0 15px;
  justify-content: center;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--white);
  font-family: var(--display);
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  transition: background 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
}
.pf-pagination a.page-numbers:hover {
  border-color: var(--navy);
  background: var(--navy);
  color: #fff;
}
.pf-pagination a.page-numbers:focus-visible {
  outline: 2px solid var(--tan);
  outline-offset: 2px;
}
.pf-pagination .page-numbers.current {
  background: var(--tan);
  border-color: var(--tan);
  color: var(--navy-dk);
}
.pf-pagination .page-numbers.dots {
  border: none;
  background: transparent;
  min-width: 26px;
  padding: 0;
  color: var(--muted);
}
.pf-pagination .page-numbers svg { width: 16px; height: 16px; }


/* ─── RESPONSIVE ───────────────────────────────────── */
@media (max-width: 900px) {
  .pf-layout { grid-template-columns: 1fr; gap: 36px; }
  /* Two facet groups sit side-by-side to save vertical space before the grid. */
  .pf-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 32px;
    align-items: start;
  }
  .pf-sidebar-head { grid-column: 1 / -1; }
  .pf-facet-group + .pf-facet-group { margin-top: 0; }
}

@media (max-width: 560px) {
  .pf-sidebar { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .pf-card,
  .pf-facet,
  .pf-facet-box,
  .pf-facet-box::after,
  .pf-facet-label,
  .pf-clear { transition: none; }
  .pf-card.pf-show-in { animation: none; }
}