/* =============================================================
   МОДУЛЬ: ПОРТФОЛИО / РАБОТЫ
   ============================================================= */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-works-cta {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}
.case-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--brand-graphite);
  /* Вертикальный формат под вертикальные фото портфолио */
  aspect-ratio: 3/4;
  display: block;
  box-shadow: var(--shadow-sm);
}
.case-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--transition-slow);
}
.case-card:hover img { transform: scale(1.06); }
.case-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20,21,26,.92) 0%, rgba(20,21,26,.2) 55%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 26px;
  color: #fff;
  z-index: 2;
}

/* ── Слайдер фото внутри карточки списка ── */
/* без z-index, чтобы не создавать stacking context: стрелки (z-index:3)
   должны конкурировать с overlay (z-index:2) напрямую в контексте карточки */
.case-card__slider { position: absolute; inset: 0; }
.case-card__slide {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0; visibility: hidden;
  transition: opacity .4s ease;
}
.case-card__slide.is-active { opacity: 1; visibility: visible; }
.case-card:hover .case-card__slide.is-active { transform: scale(1.06); }

.case-card__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 3;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border: none; border-radius: 50%;
  background: rgba(255,255,255,.9);
  color: var(--brand-graphite);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  opacity: 0;
  transition: opacity var(--transition), background var(--transition);
}
.case-card:hover .case-card__nav { opacity: 1; }
.case-card__nav:hover { background: #fff; }
.case-card__nav svg { width: 18px; height: 18px; }
.case-card__nav--prev { left: 12px; }
.case-card__nav--prev svg { transform: rotate(90deg); }
.case-card__nav--next { right: 12px; }
.case-card__nav--next svg { transform: rotate(-90deg); }

.case-card__dots {
  position: absolute; left: 0; right: 0; top: 14px;
  z-index: 3;
  display: flex; justify-content: center; gap: 6px;
}
.case-card__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255,255,255,.5);
  transition: background var(--transition);
}
.case-card__dot.is-active { background: #fff; }
.case-card__tag {
  align-self: flex-start;
  font-size: .76rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  background: var(--grad-red); color: #fff;
  padding: 5px 12px; border-radius: var(--radius-pill); margin-bottom: 12px;
}
.case-card__title { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; color: #fff; margin-bottom: 8px; }
.case-card__meta { display: flex; gap: 16px; font-size: .85rem; color: rgba(255,255,255,.78); flex-wrap: wrap; }
.case-card__meta span { display: inline-flex; align-items: center; gap: 5px; }
.case-card__meta svg { width: 14px; height: 14px; stroke: var(--brand-red); fill: none; stroke-width: 1.8; }

/* Фильтр-теги портфолио (JS, без перехода) */
.portfolio-filters {
  display: flex; flex-direction: column; gap: 14px;
  margin-bottom: 40px;
}
.portfolio-filter-row {
  display: flex; align-items: baseline; gap: 14px;
  flex-wrap: wrap;
}
.portfolio-filter-row__label {
  font-family: var(--font-display); font-weight: 700;
  font-size: .92rem; color: var(--text);
  flex-shrink: 0; min-width: 96px;
}
.portfolio-filter { display: flex; gap: 10px; flex-wrap: wrap; }
.portfolio-filter button {
  padding: 9px 18px; border-radius: var(--radius-pill);
  background: #fff; border: 1px solid var(--border);
  font-family: inherit; font-weight: 600; font-size: .9rem; color: var(--text-soft);
  cursor: pointer;
  transition: var(--transition);
}
.portfolio-filter button:hover { border-color: var(--brand-red); color: var(--text); }
.portfolio-filter button.is-active {
  background: var(--grad-red); color: #fff; border-color: transparent; box-shadow: var(--shadow-red);
}

.portfolio-empty {
  text-align: center; padding: 48px 20px;
  color: var(--text-muted); font-size: .95rem;
}

/* ── Страница кейса: фото слева (вертикальное), инфо справа ── */
.case-detail {
  display: grid;
  grid-template-columns: minmax(0, 440px) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}
.case-detail__media { position: sticky; top: 96px; }
.case-detail__info { padding-top: 4px; }
.case-detail__text { margin-top: 28px; max-width: none; }
.case-detail__cta { margin-top: 32px; }

/* ── Галерея-слайдер на странице кейса ── */
.case-gallery { margin: 8px 0 36px; }
.case-gallery__stage {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-muted, #f1f1f3);
  box-shadow: var(--shadow-sm);
}
.case-gallery__main {
  /* Фото отображается целиком в своих исходных пропорциях (без обрезки).
     Высота контейнера подстраивается под реальное соотношение сторон снимка. */
  width: 100%; height: auto; display: block;
}
.case-gallery__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border: none; border-radius: 50%;
  background: rgba(255,255,255,.92);
  color: var(--brand-graphite);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,.22);
  transition: background var(--transition);
}
.case-gallery__nav:hover { background: #fff; }
.case-gallery__nav svg { width: 22px; height: 22px; }
.case-gallery__nav--prev { left: 16px; }
.case-gallery__nav--prev svg { transform: rotate(90deg); }
.case-gallery__nav--next { right: 16px; }
.case-gallery__nav--next svg { transform: rotate(-90deg); }

.case-gallery__thumbs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: 14px;
}
.case-gallery__thumb {
  width: 92px; height: 70px;
  padding: 0; border: 2px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden; cursor: pointer;
  background: var(--bg-muted, #f1f1f3);
  transition: border-color var(--transition);
}
.case-gallery__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-gallery__thumb:hover { border-color: var(--border); }
.case-gallery__thumb.is-active { border-color: var(--brand-red, #F34A4A); }

@media (max-width: 600px) {
  .case-gallery__thumb { width: 72px; height: 56px; }
}

/* Карточка кейса — параметры справа от фото (2 колонки) */
.case-specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 0 0 4px; }
.case-spec { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 20px; }
.case-spec__label { font-size: .8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 6px; }
.case-spec__value { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; color: var(--text); }

@media (max-width: 980px) {
  .case-detail { grid-template-columns: 1fr; gap: 32px; }
  .case-detail__media { position: static; max-width: 440px; margin: 0 auto; width: 100%; }
}
@media (max-width: 900px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .portfolio-grid { grid-template-columns: 1fr; }
  .case-specs { grid-template-columns: 1fr 1fr; }
}