/**
 * T-COLLECTION-INDEX / SB-WCH-013.
 *
 * The global header, mobile navigation, footer and Design System primitives
 * remain the shared site authority. This file owns only the V2 page geometry.
 */

.sb-collection-index {
  overflow-x: clip;
  background: var(--sb-color-bg-inverse);
  color: var(--sb-color-text-inverse-body);
}

.sb-collection-index__hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(520px, 72vh, 780px);
  margin-top: calc(-1 * var(--sb-header-height-desktop));
  overflow: hidden;
  background: var(--sb-color-surface-media-inverse);
}

.sb-collection-index__hero-image,
.sb-collection-index-row__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sb-collection-index__hero-image {
  position: absolute;
  inset: 0;
  object-position: 50% 45%;
}

.sb-collection-index__hero-scrim {
  position: absolute;
  inset: 0;
  background: var(--sb-overlay-hero);
}

.sb-collection-index__hero-content {
  position: relative;
  z-index: var(--sb-layer-raised);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-bottom: var(--sb-space-16);
}

.sb-collection-index__title {
  margin: 0;
  color: var(--sb-color-text-inverse);
  font-family: var(--sb-family-serif);
  font-size: clamp(40px, 6.2vw, 104px);
  font-weight: var(--sb-weight-regular);
  line-height: 0.98;
  letter-spacing: var(--sb-ls-hero);
}

.sb-collection-index__subtitle {
  margin: var(--sb-space-10) 0 0;
  color: var(--sb-color-text-inverse-secondary);
  font-family: var(--sb-family-sans);
  font-size: var(--sb-fs-14);
  font-weight: var(--sb-weight-light);
  line-height: var(--sb-lh-normal);
  letter-spacing: var(--sb-ls-nav);
}

.sb-collection-index__nav {
  position: sticky;
  top: var(--sb-header-height-desktop);
  z-index: var(--sb-layer-sticky-sub);
  background: var(--sb-scrim-sticky);
  border-bottom: var(--sb-border-hairline) solid var(--sb-color-border-inverse);
}

.sb-collection-index__nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--sb-space-20);
  list-style: none;
}

.sb-collection-index__nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: var(--sb-space-5);
  min-height: var(--sb-control-height-md);
  padding-block: var(--sb-space-7);
  border-bottom: var(--sb-border-hairline) solid transparent;
  color: var(--sb-color-text-inverse-secondary);
  font-family: var(--sb-family-sans);
  font-size: var(--sb-fs-12);
  font-weight: var(--sb-weight-regular);
  line-height: var(--sb-lh-display);
  letter-spacing: var(--sb-ls-nav);
  text-transform: uppercase;
}

.sb-collection-index__nav-link:hover,
.sb-collection-index__nav-link:focus-visible {
  border-bottom-color: var(--sb-color-accent-metal);
  color: var(--sb-color-text-inverse);
}

.sb-collection-index__rows {
  background: var(--sb-color-bg-inverse);
}

.sb-collection-index-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  min-height: clamp(360px, 58vh, 660px);
  border-top: var(--sb-border-hairline) solid var(--sb-color-border-inverse-strong);
  color: inherit;
}

.sb-collection-index-row:last-child {
  border-bottom: var(--sb-border-hairline) solid var(--sb-color-border-inverse-strong);
}

.sb-collection-index-row__media {
  min-height: clamp(360px, 58vh, 660px);
  background: var(--sb-color-surface-media-inverse);
}

.sb-collection-index-row__image {
  filter: saturate(0.94);
  transition: filter var(--sb-duration-cinematic) var(--sb-ease-standard), transform var(--sb-duration-cinematic) var(--sb-ease-entrance);
}

.sb-collection-index-row:hover .sb-collection-index-row__image {
  filter: saturate(1);
  transform: scale(var(--sb-media-hover-scale));
}

.sb-collection-index-row:focus-visible {
  position: relative;
  z-index: var(--sb-layer-raised);
  outline: var(--sb-focus-ring-width) solid var(--sb-color-focus);
  outline-offset: calc(var(--sb-focus-ring-offset) * -1);
}

.sb-collection-index-row__pane {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(40px, 5vw, 86px);
}

.sb-collection-index-row--flip .sb-collection-index-row__media {
  order: 2;
}

.sb-collection-index-row__number {
  color: var(--sb-color-accent-metal);
  font-family: var(--sb-family-serif);
  font-size: clamp(46px, 5.4vw, 86px);
  line-height: 0.85;
  opacity: 0.34;
}

.sb-collection-index-row__name {
  margin-top: clamp(14px, 2vw, 26px);
  color: var(--sb-color-text-inverse);
  font-family: var(--sb-family-sans);
  font-size: clamp(28px, 3.4vw, 52px);
  font-weight: var(--sb-weight-light);
  line-height: var(--sb-lh-tight);
  letter-spacing: var(--sb-ls-heading);
}

.sb-collection-index-row__meta {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 28px);
  margin-top: clamp(18px, 2vw, 26px);
  padding-top: var(--sb-space-8);
  border-top: var(--sb-border-hairline) solid var(--sb-color-border-inverse-strong);
  color: var(--sb-color-text-inverse-muted);
  font-family: var(--sb-family-sans);
  font-size: var(--sb-fs-13);
  font-weight: var(--sb-weight-light);
  line-height: var(--sb-lh-normal);
  letter-spacing: var(--sb-ls-normal);
}

.sb-collection-index-row__view {
  color: var(--sb-color-text-inverse);
  font-size: var(--sb-fs-11);
  font-weight: var(--sb-weight-regular);
  letter-spacing: var(--sb-ls-eyebrow);
  opacity: 0.55;
  transition: opacity var(--sb-duration-standard) var(--sb-ease-standard);
}

.sb-collection-index-row:hover .sb-collection-index-row__view,
.sb-collection-index-row:focus-visible .sb-collection-index-row__view {
  opacity: 1;
}

.sb-collection-index__all-watches {
  display: flex;
  justify-content: flex-end;
  padding-block: var(--sb-section-y-sm);
}

.sb-collection-index__services .sb-grid--facts {
  row-gap: var(--sb-space-12);
}

.sb-collection-index__services .sb-label {
  margin: 0 0 var(--sb-space-5);
}

.sb-collection-index__services .sb-body {
  margin: 0;
  color: var(--sb-color-text-inverse-secondary);
}

.sb-collection-index__services a:hover,
.sb-collection-index__services a:focus-visible {
  color: var(--sb-color-text-inverse);
}

.sb-collection-index--enhanced [data-sb-reveal] {
  opacity: 0;
  transform: translateY(var(--sb-space-7));
  transition: opacity var(--sb-duration-cinematic) var(--sb-ease-entrance), transform var(--sb-duration-cinematic) var(--sb-ease-entrance);
}

.sb-collection-index--enhanced [data-sb-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1039px) {
  .sb-collection-index__hero {
    margin-top: calc(-1 * var(--sb-header-height-mobile));
  }

  .sb-collection-index__nav {
    top: var(--sb-header-height-mobile);
  }
}

@media (max-width: 767px) {
  .sb-collection-index__hero-content {
    padding-bottom: var(--sb-space-16);
  }

  .sb-collection-index__nav-list {
    gap: 0 var(--sb-space-10);
  }

  .sb-collection-index__nav-link {
    font-size: var(--sb-fs-11);
  }

  .sb-collection-index-row {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .sb-collection-index-row--flip .sb-collection-index-row__media {
    order: 0;
  }

  .sb-collection-index-row__media {
    min-height: 0;
    aspect-ratio: var(--sb-ratio-landscape);
  }

  .sb-collection-index-row__pane {
    min-height: 360px;
    padding: var(--sb-section-y-mobile-lg) var(--sb-page-inline-mobile);
  }

  .sb-collection-index-row__name {
    font-size: var(--sb-type-editorial-mobile);
  }

  .sb-collection-index-row__meta {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--sb-space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sb-collection-index--enhanced [data-sb-reveal],
  .sb-collection-index--enhanced [data-sb-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .sb-collection-index-row__image,
  .sb-collection-index-row__view {
    transition: none;
  }
}