/*
 * Shared header surface and homepage integration layer.
 *
 * Mobile-v2 JavaScript only toggles:
 *   .site-header--top
 *   .site-header--scrolled
 *   .site-header--hidden
 *
 * Legacy storefront header state remains owned by tiara-promo-header.js.
 */

:root {
  --tiara-color-background-primary: #fdfbfb;
  /* Shared opaque surface (default mobile + scrolled headers at every width). */
  --site-header-surface: #fdfbfb;
  --site-header-ink: #0a0a0a;
  --site-header-ink-on-hero: #fff;
  --site-header-motion: 360ms cubic-bezier(0.22, 0.61, 0.36, 1);
  --site-header-color-motion: 280ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* The full catalog keeps its existing opaque mobile header and joins the shared
 * hero state on desktop. Its geometry remains CSS-owned when the viewport changes. */
@media (max-width: 992px) {
  body.tiara-catalog-page--hero-desktop {
    --site-header-ink-on-hero: var(--site-header-ink);
    --site-header-top-surface: #fdfbfb;
    --site-header-top-filter: none;
    --site-header-top-count-ring: #fff;
    --site-header-scrolled-shadow: none;
  }
}

/* Both homepage and category shells let the fixed header overlay a full-viewport hero. */
body.common-home .wrapper,
body.tiara-main-page,
body.tiara-catalog-page--hero {
  padding-top: 0;
}

body.common-home #content > .main_video:first-of-type,
body.common-home #content > .main_video:first-of-type .main_video__inner,
body.tiara-main-page .tiara-home > .tiara-hero--height-viewport,
body.tiara-main-page .tiara-home > .tiara-home-hero:first-child {
  width: 100%;
  max-width: none;
  /* Browser toolbar collapse must not resize the hero or recrop its cover image. */
  height: 100vh;
  height: 100svh;
  min-height: 100vh;
  min-height: 100svh;
  aspect-ratio: auto;
}

body.tiara-catalog-page--hero .tiara-catalog__cover {
  width: 100%;
  max-width: none;
  aspect-ratio: auto;
  height: var(--tiara-catalog-cover-height, 80vh);
  height: var(--tiara-catalog-cover-height, 80svh);
  min-height: var(--tiara-catalog-cover-min-height, 80vh);
  min-height: var(--tiara-catalog-cover-min-height, 80lvh);
}

body.common-home #content > .main_video:first-of-type .main_video__video,
body.common-home #content > .main_video:first-of-type .main_video__video-el,
body.common-home #content > .main_video:first-of-type .main_video__overlay,
body.common-home #content > .main_video:first-of-type .main_video__poster {
  width: 100%;
  height: 100%;
}

body.common-home #content > .main_video:first-of-type .main_video__video-el,
body.common-home #content > .main_video:first-of-type .main_video__poster {
  object-fit: cover;
}

/* Mobile-v2 state presentation. Desktop never animates ink: a color
 * transition here is what flashed dark controls on PC navigations. */
header.tiara-header {
  transform: translate3d(0, 0, 0);
  transition: transform var(--site-header-motion);
  will-change: transform;
}

header.tiara-header.site-header--hidden {
  transform: translate3d(0, -100%, 0);
}

body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--top {
  color: var(--site-header-ink-on-hero);
  background-color: var(--site-header-top-surface, transparent);
  box-shadow: none;
}

body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--top .tiara-header__button,
body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--top .tiara-header__logo {
  color: var(--site-header-ink-on-hero);
}

body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--top .tiara-header__count {
  --tiara-header-count-ink: #fff;
  --tiara-header-count-surface: #0a0a0a;
  --tiara-header-count-ring: var(--site-header-top-count-ring, transparent);
}

/* ≤992 transparent: invert the default dark mark to white. Desktop uses native white artwork and never filters the logo. */
@media (max-width: 992px) {
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--top .tiara-header__logo-image--default,
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--top .tiara-header__button > img {
    filter: var(--site-header-top-filter, brightness(0) invert(1));
  }

  header.tiara-header {
    background-color: var(--site-header-surface);
    transition:
      transform var(--site-header-motion),
      background-color var(--site-header-color-motion),
      color var(--site-header-color-motion),
      box-shadow var(--site-header-color-motion);
  }

  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--scrolled .tiara-header__button,
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--scrolled .tiara-header__logo {
    color: var(--site-header-ink);
  }

  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--scrolled .tiara-header__logo-image--default,
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header.site-header--scrolled .tiara-header__button > img {
    filter: var(--site-header-filter, none);
  }

  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header .tiara-header__logo-image--default,
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header .tiara-header__button > img {
    transition: filter var(--site-header-color-motion);
  }
}

@media (min-width: 993px) {
  /* The top overlay and the opaque scrolled surface use separate colors. */
  :root {
    --site-header-surface: #fdfbfb;
    --site-header-ink: #0a0a0a;
    --site-header-ink-on-hero: #fff;
    --site-header-filter: none;
    --site-header-top-surface: transparent;
    --site-header-top-filter: brightness(0) invert(1);
    --site-header-top-count-ring: transparent;
    --site-header-scrolled-shadow: none;
  }

  header.tiara-header {
    color: #fff;
    background-color: transparent;
    box-shadow: none;
    transition: transform var(--site-header-motion);
  }

  body.tiara-catalog-page--hero-desktop {
    --site-header-ink-on-hero: #fff;
    --site-header-top-surface: transparent;
    --site-header-top-filter: brightness(0) invert(1);
    --site-header-top-count-ring: transparent;
    --site-header-scrolled-shadow: none;
  }

  /* Beat mirrored page fills such as .tiara-about-page .tiara-header. */
  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)),
  body[class] header.tiara-header.site-header--top:not(.tiara-header--solid) {
    color: #fff;
    background-color: transparent;
    box-shadow: none;
  }

  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__button,
  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__logo,
  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__desktop-link {
    color: #fff;
  }

  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__logo-image--default {
    visibility: hidden;
    filter: none;
    transition: none;
  }

  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__button > img {
    filter: brightness(0) invert(1);
    transition: none;
  }

  body[class] header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__count {
    --tiara-header-count-ink: #fff;
    --tiara-header-count-surface: #0a0a0a;
    --tiara-header-count-ring: transparent;
  }

  /* Desktop never slides the homepage header away on scroll. */
  header.tiara-header.site-header--hidden {
    transform: translate3d(0, 0, 0);
  }

  header.tiara-header .tiara-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    /* Center the logo and controls within the shared header height. */
    grid-template-rows: minmax(0, 1fr);
    align-items: center;
    width: 100%;
    max-width: none;
    margin-inline: auto;
    padding: 0 24px;
  }

  header.tiara-header .tiara-header__actions--left {
    grid-column: 1;
    justify-content: flex-start;
    gap: 8px;
  }

  header.tiara-header .tiara-header__actions--right {
    grid-column: 3;
    justify-content: flex-end;
    gap: 8px;
  }

  header.tiara-header .tiara-header__button {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    color: inherit;
  }

  header.tiara-header .tiara-header__button > img {
    filter: var(--site-header-filter);
  }

  header.tiara-header .tiara-header__count {
    --tiara-header-count-ink: #fff;
    --tiara-header-count-surface: #0a0a0a;
    --tiara-header-count-ring: transparent;
  }

  header.tiara-header :is(a, button):focus-visible {
    outline: 1px solid currentColor;
    outline-offset: 3px;
  }

  header.tiara-header .tiara-header__desktop-link {
    align-items: center;
    min-height: 40px;
    color: inherit;
    font-family: var(--font-montserrat);
    font-size: 16px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap;
  }

  header.tiara-header .tiara-header__actions--left .tiara-header__desktop-link:first-of-type {
    margin-left: 16px;
  }

  header.tiara-header .tiara-header__actions--left .tiara-header__desktop-link + .tiara-header__desktop-link,
  header.tiara-header .tiara-header__actions--right .tiara-header__desktop-link + .tiara-header__desktop-link {
    margin-left: 4px;
    margin-right: 16px;
  }

  header.tiara-header .tiara-header__actions--right .tiara-header__desktop-link:last-of-type {
    margin-right: 16px;
  }

  header.tiara-header .tiara-header__logo {
    grid-column: 2;
    grid-row: 1;
    align-self: center;
    justify-content: center;
    color: inherit;
  }

  header.tiara-header .tiara-header__icon--login {
    width: 24px;
    height: 24px;
  }

  /*
   * Desktop uses the native white 180 × 44 artwork on the transparent bar,
   * preserving the light-grey caption without filtering the logo.
   */
  header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__logo-image--default {
    visibility: hidden;
  }

  header.tiara-header:not(:is(.tiara-header--solid, .site-header--scrolled)) .tiara-header__logo-image--hero {
    display: block;
  }

  /*
   * Scrolled and opt-in solid surfaces share the light bar, dark controls
   * and native dark logo. The opt-in solid pages stay opaque at the top.
   */
  body[class] header.tiara-header.tiara-header--solid,
  body[class] header.tiara-header.tiara-header--solid.site-header--top,
  body[class] header.tiara-header.site-header--scrolled {
    color: var(--site-header-ink);
    background-color: var(--site-header-surface);
    box-shadow: none;
  }

  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__button,
  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__logo,
  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__desktop-link {
    color: var(--site-header-ink);
  }

  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__button > img {
    filter: none;
  }

  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__logo-image--default {
    visibility: visible;
    filter: none;
  }

  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__logo-image--hero {
    display: none;
  }

  body[class] header.tiara-header:is(.tiara-header--solid, .site-header--scrolled) .tiara-header__count {
    --tiara-header-count-ink: #fff;
    --tiara-header-count-surface: #0a0a0a;
    --tiara-header-count-ring: #fff;
  }

}

@media (prefers-reduced-motion: reduce) {
  header.tiara-header,
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header .tiara-header__logo-image--default,
  body:is(.tiara-main-page, .tiara-catalog-page--hero, .tiara-catalog-page--hero-desktop) header.tiara-header .tiara-header__button > img {
    transition-duration: 0.01ms;
  }
}