/* kit-benefits — Reference Kit block
 * Декомпозиция: section → header → grid → card (icon → label? → title → desc).
 * Стиль = semantic tokens; R-01: grid_N fixed columns (no auto-fit).
 */
.kit-benefits {
  container-type: inline-size;
  /* card-min + gap для формулы порогов grid_auto (rem = root font-size, синхронно с tokens) */
  --kit-benefits-card-min: 16rem;
  --kit-benefits-grid-gap: var(--semantic-spacing-l, 2rem);
  --kit-benefits-text: var(--semantic-text-primary);
  --kit-benefits-text-muted: var(--semantic-text-secondary);
  --kit-benefits-padding-y: 3rem;
  --kit-benefits-padding-x: 1.5rem;
  --kit-benefits-radius: 0.5rem;
  --kit-benefits-shadow: none;
  --kit-benefits-font-family: inherit;
  background: var(--kit-benefits-band-bg, var(--theme-kit-band-bg, transparent));
  color: var(--kit-benefits-text);
  font-family: var(--kit-benefits-font-family);
}

/* Секция / контейнер — ширина + внешние отступы */
.kit-benefits__container {
  background: var(--kit-benefits-bg, var(--semantic-surface-bg-elevated));
  width: 100%;
  max-width: var(--layout-container-max-width, var(--semantic-layout-container-max-width, 1120px));
  margin-inline: auto;
  padding-block: var(--kit-benefits-padding-y);
  padding-inline: var(--layout-container-gutter, var(--kit-benefits-padding-x, 24px));
  border-radius: var(--kit-benefits-radius, var(--semantic-radius-none));
  box-shadow: var(--kit-benefits-shadow, none);
}

/* Шапка блока — заголовок + подзаголовок */
.kit-benefits__header {
  text-align: center;
  margin-bottom: var(--semantic-spacing-2xl, 3.5rem);
}

.kit-benefits__header--title-left { text-align: left; }
.kit-benefits__header--title-center { text-align: center; }
.kit-benefits__header--title-right { text-align: right; }

.kit-benefits__title {
  font-size: var(--kit-benefits-title-size-fluid, var(--kit-benefits-title-size-mobile, clamp(1.5rem, 1.1364cqi + 1.2727rem, 2rem)));
  font-weight: 700;
  margin: 0 0 var(--semantic-spacing-s, 0.5rem);
}

.kit-benefits__subtitle {
  color: var(--kit-benefits-text-muted, var(--semantic-text-secondary));
  font-size: var(--kit-benefits-subtitle-size-fluid, var(--kit-benefits-subtitle-size-mobile, 1rem));
  margin: 0;
}

/* Сетка — раскладка карточек; gap всегда одинаковый */
.kit-benefits__grid {
  display: grid;
  gap: var(--kit-benefits-grid-gap, var(--semantic-spacing-l, 1.5rem));
}

/* R-01: fixed columns for grid_N (no auto-fit) */
.kit-benefits--layout-grid_3 .kit-benefits__grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kit-benefits--layout-grid_2 .kit-benefits__grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.kit-benefits--layout-list .kit-benefits__grid {
  grid-template-columns: 1fr;
  max-width: 40rem;
  margin-inline: auto;
}

/*
 * grid_auto: лестница колонок по ширине контейнера.
 * Пороги в rem от root font-size, синхронно с tokens.
 * Формула: N×card-min + (N−1)×gap (+ запас на padding).
 * Сирота в последнем ряду допускается (не центрируем хвост).
 */
.kit-benefits--layout-grid_auto .kit-benefits__grid {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

/* 2 cols: 2×16 + 1×2 = 34 → +2 запас → 36rem */
@container (min-width: 36rem) {
  .kit-benefits--layout-grid_auto .kit-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 3 cols: 3×16 + 2×2 = 52 → +4 запас → 56rem */
@container (min-width: 56rem) {
  .kit-benefits--layout-grid_auto .kit-benefits__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* 4 cols: 4×16 + 3×2 = 70 → +2 запас → 72rem */
@container (min-width: 72rem) {
  .kit-benefits--layout-grid_auto .kit-benefits__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Карточка — icon → label? → title → desc */
.kit-benefits__card {
  display: flex;
  flex-direction: column;
  gap: var(--semantic-spacing-xs, 0.5rem);
  height: 100%;
  padding: var(--semantic-spacing-l, 1.75rem);
  background: color-mix(
    in srgb,
    var(--semantic-surface-bg-muted) 55%,
    var(--kit-benefits-bg, var(--semantic-surface-bg-elevated))
  );
  border: 1px solid color-mix(in srgb, var(--semantic-border-muted, currentColor) 70%, transparent);
  border-radius: var(--semantic-radius-l, 1rem);
  box-shadow: none;
  transition:
    border-color var(--semantic-motion-duration-fast, 160ms) var(--semantic-motion-easing-standard, ease-out),
    box-shadow var(--semantic-motion-duration-fast, 160ms) var(--semantic-motion-easing-standard, ease-out),
    transform var(--semantic-motion-duration-fast, 160ms) var(--semantic-motion-easing-standard, ease-out);
}

.kit-benefits__card:hover {
  border-color: color-mix(in srgb, var(--semantic-border-muted, currentColor) 95%, transparent);
  box-shadow: var(--semantic-shadow-s, none);
  transform: translateY(var(--semantic-motion-hover-lift, -2px));
}

/* Per-card video (optional) — replaces icon when video_url renders */
.kit-benefits__media {
  width: 100%;
  margin-bottom: var(--semantic-spacing-m, 1rem);
  border-radius: var(--semantic-radius-l, 1rem);
  overflow: hidden;
  background: var(--semantic-surface-bg-muted, #f3f1ee);
  aspect-ratio: 16 / 9;
}

.kit-benefits__media .kit-video__native,
.kit-benefits__media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kit-benefits__embed {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.kit-benefits__icon-wrap {
  width: 4.25rem;
  height: 4.25rem;
  margin-bottom: var(--semantic-spacing-m, 1rem);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: color-mix(
    in srgb,
    var(--semantic-accent-primary) 18%,
    var(--semantic-surface-bg-elevated)
  );
  border: 1px solid color-mix(in srgb, var(--semantic-accent-primary) 40%, transparent);
  border-radius: var(--semantic-radius-l, 1rem);
  color: var(--semantic-accent-primary);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--semantic-accent-primary) 16%, transparent);
}

.kit-benefits__icon {
  font-size: 1.6rem;
  line-height: 1;
}

.kit-benefits__icon-svg {
  width: 2.1rem;
  height: 2.1rem;
  display: block;
}

.kit-benefits__icon-img {
  width: 2.1rem;
  height: 2.1rem;
  display: block;
  object-fit: contain;
}

/* Label: ui-label-size + muted (= secondary via alias); не accent */
.kit-benefits__label {
  margin: 0 0 var(--semantic-spacing-2xs, 0.25rem);
  font-size: var(--semantic-typography-ui-label-size, 0.75rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--kit-benefits-text-muted, var(--semantic-text-secondary));
}

.kit-benefits__card-title {
  font-size: var(--semantic-typography-body-l-size, 1.125rem);
  font-weight: 700;
  margin: 0;
}

.kit-benefits__card-desc {
  color: var(--kit-benefits-text-muted, var(--semantic-text-secondary));
  font-size: var(--semantic-typography-body-m-size, 0.95rem);
  margin: 0;
  margin-top: auto;
  padding-top: var(--semantic-spacing-xs, 0.5rem);
  line-height: 1.55;
}

/* R-08 mobile collapse — только fixed grid_N */
@media (max-width: 768px) {
  .kit-benefits--layout-grid_3 .kit-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .kit-benefits {
    --kit-benefits-padding-x: 1rem;
    --kit-benefits-padding-y: 2rem;
  }

  .kit-benefits__header {
    margin-bottom: var(--semantic-spacing-xl, 2.5rem);
  }

  .kit-benefits--layout-grid_3 .kit-benefits__grid,
  .kit-benefits--layout-grid_2 .kit-benefits__grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kit-benefits *,
  .kit-benefits *::before,
  .kit-benefits *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .kit-benefits__card:hover {
    transform: none;
  }
}

.kit-benefits, .kit-benefits * { box-sizing: border-box; }
.kit-benefits :is(a, button, summary, [tabindex]):focus-visible {
  outline: var(--semantic-a11y-focus-ring-width, 2px) solid var(--semantic-a11y-focus-ring-color, var(--semantic-accent-primary));
  outline-offset: var(--semantic-a11y-focus-ring-offset, 3px);
}