/* problems-archive.css — CPT `problem` archive (Figma "/Problemy/Grid-L").
   Centered hero + problem_type SegmentedControl, then a paginated 4-col grid of
   problem tiles. The .segmented and .pagination components are styled in
   blog-archive.css (enqueued as a dependency). */

/* ---------- Hero ---------- */
.problems-archive__hero { padding-top: var(--space-m); }
.problems-archive__hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
}
.problems-archive__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
  max-width: 686px;
  /* position + text alignment come from the .u-align-* utility (ACF "align" field) */
}
.problems-archive__title { margin: 0; color: var(--color-grey-900); }
.problems-archive__title em,
.problems-archive__title i { font-style: italic; }
.problems-archive__intro {
  margin: 0;
  font-size: var(--fs-body-m);
  line-height: var(--lh-body-m);
  color: var(--color-grey-900);
}

/* ---------- List ---------- */
.problems-archive--list { padding-block: var(--space-3xl) var(--space-5xl); }
.problems-archive__results { transition: opacity .2s ease; }
.problems-archive__empty {
  padding-block: var(--space-2xl);
  color: var(--color-grey-600);
}

.problems-archive__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: var(--space-l);
  row-gap: var(--space-3xl);
  align-items: start;
}

/* ---------- Problem tile ---------- */
.problem-tile {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
}
.problem-tile__media {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--color-grey-200);
}
.problem-tile__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.problem-tile:hover .problem-tile__img { transform: scale(1.03); }

.problem-tile__cat {
  align-self: flex-start;
  font-size: var(--fs-caption);
  line-height: var(--lh-caption);
  letter-spacing: var(--ls-caption);
  font-weight: 500;
  text-transform: uppercase;
  color: var(--color-grey-600);
  text-decoration: none;
}
.problem-tile__cat:hover { color: var(--color-grey-900); }
.problem-tile__cat:focus-visible {
  outline: 2px solid var(--color-grey-900);
  outline-offset: 2px;
}

.problem-tile__titlerow {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--color-grey-900);
}
.problem-tile__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--fs-body-m);
  line-height: var(--lh-body-m);
  font-weight: 500;
}
.problem-tile__icon {
  flex: 0 0 auto;
  display: inline-flex;
  color: var(--color-grey-900);
  transition: transform .2s ease, color .2s ease;
}
.problem-tile__titlerow:hover .problem-tile__icon { transform: translateX(4px); }
.problem-tile__titlerow:focus-visible {
  outline: 2px solid var(--color-grey-900);
  outline-offset: 2px;
}

/* ---------- Tablet: 3 columns ---------- */
@media (max-width: 1024px) {
  .problems-archive__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- Mobile: single column ---------- */
@media (max-width: 600px) {
  .problems-archive__hero { padding-top: var(--space-2x); }
  .problems-archive__title { font-size: var(--fs-h-l); line-height: var(--lh-h-l); letter-spacing: var(--ls-h-l); }
  .problems-archive--list { padding-block: var(--space-2xl) var(--space-3xl); }
  .problems-archive__grid { grid-template-columns: 1fr; row-gap: var(--space-3xl); }
}