/* ============================================================
   КЕЙСЫ — асимметричная плитка в стиле премиум-агентств
   ============================================================ */

/* ── HERO ── */
.cases-hero {
  padding-top: var(--space-32);
  padding-bottom: var(--space-10);
}
.cases-hero__top {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.cases-hero__count { font-size: var(--text-xs); letter-spacing: .14em; text-transform: uppercase; color: var(--color-text-dim); }
.cases-hero__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 14vw, 11rem);
  font-weight: var(--font-weight-bold);
  line-height: 0.9;
  letter-spacing: -0.05em;
  margin-bottom: var(--space-6);
}
.cases-hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  line-height: var(--leading-relaxed);
}

/* ── ФИЛЬТР ── */
.cases-filters {
  position: sticky; top: 0; z-index: var(--z-raised);
  background: var(--header-bg-scrolled);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-3);
}

/* ── ПЛИТКА ── */
.cases { padding-top: var(--space-10); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.2vw, 2.25rem);
  grid-auto-flow: dense;
}

/* ── КАРТОЧКА ── */
.case-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  grid-column: span 4;
}
.case-card[hidden] { display: none; }

/* размеры */
.case-card--feature { grid-column: span 7; }
.case-card--wide    { grid-column: span 8; }
.case-card--md      { grid-column: span 5; }
.case-card--tall    { grid-column: span 5; }
.case-card--sm      { grid-column: span 4; }

/* ── ОБЛОЖКА (плейсхолдер под фото) ── */
.case-card__cover {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--color-surface-2);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  isolation: isolate;
}
.case-card--feature .case-card__cover { aspect-ratio: 16 / 11; }
.case-card--wide    .case-card__cover { aspect-ratio: 16 / 9; }
.case-card--tall    .case-card__cover { aspect-ratio: 4 / 5; }
.case-card--md      .case-card__cover { aspect-ratio: 5 / 4; }

/* крупный «водяной» индекс */
.case-card__index {
  position: absolute;
  top: clamp(0.6rem, 1.5vw, 1.4rem);
  left: clamp(0.7rem, 1.6vw, 1.5rem);
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-text);
  opacity: .07;
  transition: opacity var(--transition-base);
  z-index: 1;
}
.case-card:hover .case-card__index { opacity: .04; }

/* реверс-наведение: лейбл «смотреть» */
.case-card__view {
  position: relative;
  margin: 0 0 clamp(0.8rem, 1.6vw, 1.4rem) clamp(0.9rem, 1.8vw, 1.6rem);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semi);
  color: var(--color-text);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 2;
}
.case-card:hover .case-card__view { opacity: 1; transform: translateY(0); }

/* тонкая обводка обложки при наведении */
.case-card__cover::after {
  content: '';
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px var(--color-text);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
  z-index: 1;
}
.case-card:hover .case-card__cover::after { opacity: .18; }

/* ── МЕТА ── */
.case-card__meta { display: flex; flex-direction: column; gap: var(--space-2); }
.case-card__line { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.case-card__cat {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--color-gold);
}
.case-card__sphere {
  font-size: var(--text-xs);
  letter-spacing: .04em;
  color: var(--color-text-dim);
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-border-strong);
}
.case-card__name {
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 2.6vw, var(--text-3xl));
  font-weight: var(--font-weight-semi);
  line-height: 1.05;
  letter-spacing: -0.025em;
  width: max-content;
  max-width: 100%;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  padding-bottom: 2px;
  transition: background-size var(--transition-base);
}
.case-card:hover .case-card__name { background-size: 100% 1px; }
.case-card--feature .case-card__name { font-size: clamp(var(--text-2xl), 3.2vw, var(--text-4xl)); }

/* ── CTA (акцентная секция) ── */
.section--accent-cta {
  background: var(--color-gold);
  color: var(--color-text-on-gold);
  padding-block: clamp(3rem, 6vw, 5.5rem);
  margin-top: var(--space-12);
}
.home-cta__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-10); flex-wrap: wrap; }
.section--accent-cta .home-cta__text .eyebrow { color: rgba(10,10,12,.6); }
.section--accent-cta .home-cta__title { font-family: var(--font-display); font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl)); font-weight: var(--font-weight-bold); line-height: 0.98; letter-spacing: -0.04em; margin-bottom: var(--space-3); color: var(--color-text-on-gold); }
.section--accent-cta .home-cta__sub { font-size: var(--text-lg); color: rgba(10,10,12,.7); max-width: 44ch; }
.home-cta__actions { display: flex; gap: var(--space-3); flex-shrink: 0; flex-wrap: wrap; }
.section--accent-cta .btn--accent { background: var(--color-text-on-gold); color: var(--color-gold); border-color: var(--color-text-on-gold); }
.section--accent-cta .btn--accent:hover { background: #000; border-color: #000; }
.section--accent-cta .btn--ghost { border-color: rgba(10,10,12,.4); color: var(--color-text-on-gold); }
.section--accent-cta .btn--ghost:hover { background: var(--color-text-on-gold); color: var(--color-gold); }

/* ── АДАПТИВ ── */
@media (max-width: 1024px) {
  .cases-grid { grid-template-columns: repeat(6, 1fr); }
  .case-card--feature, .case-card--wide { grid-column: span 6; }
  .case-card--md, .case-card--tall, .case-card--sm, .case-card { grid-column: span 3; }
}
@media (max-width: 600px) {
  .cases-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .case-card,
  .case-card--feature, .case-card--wide,
  .case-card--md, .case-card--tall, .case-card--sm { grid-column: span 1; }
  .case-card__cover,
  .case-card--feature .case-card__cover,
  .case-card--wide .case-card__cover,
  .case-card--tall .case-card__cover,
  .case-card--md .case-card__cover { aspect-ratio: 4 / 3; }
  .case-card__view { opacity: 1; transform: none; }
}