/**
 * Navigation — sticky header, mega, drawer, bottom nav.
 * Aligns with design tokens; does not fight components.css header chrome.
 * @since 2.1.0 Premium glass / compression / discovery mega.
 */

.ugb-header--premium {
  position: sticky;
  top: 0;
  z-index: var(--ugb-z-header);
  background: var(--ugb-color-surface);
  transition:
    transform var(--ugb-motion-base) var(--ugb-ease-standard),
    box-shadow var(--ugb-motion-base) var(--ugb-ease-standard),
    backdrop-filter var(--ugb-motion-base) var(--ugb-ease-standard);
}

.ugb-header.is-hidden {
  transform: translateY(-110%);
}

/* Mobile/tablet: never scroll-hide the header — hamburger must stay tappable. */
@media (max-width: 1023.98px) {
  .ugb-header.is-hidden,
  [dir="rtl"] .ugb-header.is-hidden {
    transform: none;
  }
}

.ugb-header.is-stuck {
  box-shadow: var(--ugb-elevation-2);
}

.ugb-header.is-stuck .ugb-header__bar {
  background: color-mix(in srgb, var(--ugb-color-surface) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

@media (max-width: 767.98px) {
  .ugb-header.is-stuck .ugb-header__bar {
    background: #fff;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.08);
  }
}

.ugb-header.is-stuck .ugb-header__nav-bar {
  background: color-mix(in srgb, var(--ugb-color-surface) 94%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ugb-color-border);
}

.ugb-header.is-compressed .ugb-header__inner {
  min-height: calc(var(--ugb-header-height) - 0.5rem);
  padding-block: var(--ugb-space-2);
}

/* Keep primary navbar visible while sticky (do not collapse it away). */
.ugb-header.is-compressed .ugb-header__nav-bar {
  display: block;
}

/* Suppress Astra chrome when Ugobest sticky header owns the top. */
body.ugobest-has-sticky-nav #masthead,
body.ugobest-has-sticky-nav .ast-primary-header-bar,
body.ugobest-has-sticky-nav .main-header-bar,
body.ugobest-has-sticky-nav .ast-mobile-header-wrap,
body.ugobest-has-sticky-nav .site-header {
  display: none !important;
}

body.ugobest-has-sticky-nav .site-footer,
body.ugobest-has-sticky-nav .ast-footer-overlay,
body.ugobest-has-sticky-nav footer#colophon {
  display: none !important;
}

.ugb-header__compare {
  position: relative;
}

.ugb-header__search-trigger {
  display: inline-flex;
}

@media (min-width: 1024px) {
  .ugb-header__search-trigger {
    display: none;
  }
}

.ugb-nav__link:focus-visible,
.ugb-mega a:focus-visible,
.ugb-drawer a:focus-visible,
.ugb-bottom-nav__link:focus-visible {
  outline: 2px solid var(--ugb-color-focus);
  outline-offset: 2px;
}

.ugb-mega {
  position: absolute;
  left: 0;
  right: 0;
  z-index: var(--ugb-z-dropdown);
  background: var(--ugb-color-surface);
  border-bottom: 1px solid var(--ugb-color-border);
  padding: var(--ugb-space-6) 0;
  box-shadow: var(--ugb-elevation-3);
}

.ugb-mega--discovery {
  max-height: min(78vh, 42rem);
  overflow: auto;
}

.ugb-mega__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(16rem, 0.9fr);
  gap: var(--ugb-space-6);
}

.ugb-mega__cats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: var(--ugb-space-5);
}

.ugb-mega__inner {
  display: block;
}

.ugb-mega__heading {
  display: flex;
  align-items: center;
  gap: var(--ugb-space-2);
  margin: 0 0 var(--ugb-space-2);
}

.ugb-mega__thumb img,
.ugb-mega__icon {
  width: 2rem;
  height: 2rem;
  border-radius: var(--ugb-radius-sm);
  object-fit: cover;
  background: var(--ugb-color-surface-muted, #f2f2f2);
  flex: 0 0 auto;
}

.ugb-mega__desc {
  margin: 0 0 var(--ugb-space-2);
  color: var(--ugb-color-ink-muted);
}

.ugb-mega__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ugb-mega__rail {
  display: flex;
  flex-direction: column;
  gap: var(--ugb-space-5);
  border-left: 1px solid var(--ugb-color-border);
  padding-left: var(--ugb-space-5);
}

.ugb-mega__block-title {
  margin: 0 0 var(--ugb-space-3);
}

.ugb-mega__collections {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--ugb-space-2);
}

.ugb-mega__collections a {
  display: grid;
  gap: 0.15rem;
  text-decoration: none;
  color: inherit;
  padding: var(--ugb-space-2);
  border-radius: var(--ugb-radius-sm);
}

.ugb-mega__collections a:hover,
.ugb-mega__collections a:focus-visible {
  background: var(--ugb-color-surface-muted, #f6f6f6);
}

.ugb-mega__collection-desc {
  color: var(--ugb-color-ink-muted);
}

.ugb-mega__product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ugb-space-3);
}

.ugb-mega__product-grid .ugb-card {
  font-size: 0.9em;
}

.ugb-mega__promo {
  display: grid;
  gap: var(--ugb-space-2);
  padding: var(--ugb-space-4);
  border-radius: var(--ugb-radius-md);
  text-decoration: none;
  color: inherit;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--ugb-color-primary) 18%, transparent), transparent),
    var(--ugb-color-surface-muted, #f6f6f6);
}

.ugb-mega__promo-cta {
  font-weight: var(--ugb-fw-semibold);
  color: var(--ugb-color-primary);
}

.ugb-drawer__sticky-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ugb-space-2);
  margin-bottom: var(--ugb-space-5);
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--ugb-color-surface);
  padding-bottom: var(--ugb-space-3);
}

.ugb-drawer__sticky-actions a,
.ugb-drawer__sticky-actions button {
  min-height: var(--ugb-touch-min);
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--ugb-color-border);
  border-radius: var(--ugb-radius-full, 999px);
  background: var(--ugb-color-surface);
  color: inherit;
  text-decoration: none;
  font: inherit;
  cursor: pointer;
}

@media (max-width: 1023.98px) {
  .ugb-mega__grid {
    grid-template-columns: 1fr;
  }

  .ugb-mega__rail {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--ugb-color-border);
    padding-top: var(--ugb-space-5);
  }
}

.ugb-drawer[hidden],
.ugb-mega[hidden] {
  display: none !important;
}

.ugb-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--ugb-z-drawer);
}

.ugb-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: var(--ugb-color-overlay);
}

.ugb-drawer__panel {
  position: absolute;
  top: 0;
  left: 0;
  width: min(22rem, 88vw);
  height: 100%;
  background: var(--ugb-color-surface);
  padding: var(--ugb-space-4);
  overflow: auto;
  box-shadow: var(--ugb-elevation-3, 0 16px 40px rgba(8, 19, 32, 0.18));
}

.ugb-drawer:not([hidden]) .ugb-drawer__panel {
  animation: ugb-drawer-in 220ms var(--ugb-ease, ease);
}

.ugb-drawer:not([hidden]) .ugb-drawer__backdrop {
  animation: ugb-drawer-fade 200ms var(--ugb-ease, ease);
}

@keyframes ugb-drawer-in {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

@keyframes ugb-drawer-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.ugb-drawer__list--primary a,
.ugb-drawer__search-btn {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.15rem;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 600;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  border-bottom: 1px solid var(--ugb-color-border, #e6e9ee);
}

.ugb-drawer__list--primary a:hover,
.ugb-drawer__list--primary a:focus-visible,
.ugb-drawer__search-btn:hover,
.ugb-drawer__search-btn:focus-visible {
  color: var(--ugb-color-primary, #d10012);
  outline: none;
}

.ugb-drawer__primary {
  margin-bottom: var(--ugb-space-5, 1.25rem);
}

.ugb-header__menu-toggle {
  width: 2.75rem;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  justify-content: center;
  align-items: center;
}

.ugb-header__hamburger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.28rem;
  width: 1.25rem;
}

.ugb-header__hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

html.ugb-drawer-open .ugb-header__hamburger-line:nth-child(1) {
  transform: translateY(0.35rem) rotate(45deg);
}

html.ugb-drawer-open .ugb-header__hamburger-line:nth-child(2) {
  opacity: 0;
}

html.ugb-drawer-open .ugb-header__hamburger-line:nth-child(3) {
  transform: translateY(-0.35rem) rotate(-45deg);
}

.ugb-header__hamburger-line {
  transition: transform 180ms var(--ugb-ease, ease), opacity 180ms var(--ugb-ease, ease);
}

.ugb-drawer__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--ugb-space-4);
  gap: var(--ugb-space-3);
}

.ugb-drawer__list {
  list-style: none;
  margin: 0 0 var(--ugb-space-5);
  padding: 0;
}

.ugb-drawer__list a {
  display: flex;
  align-items: center;
  min-height: var(--ugb-touch-min);
  padding: var(--ugb-space-2) 0;
  text-decoration: none;
  color: inherit;
}

.ugb-bottom-nav {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--ugb-z-sticky-search);
  background: var(--ugb-color-surface);
  border-top: 1px solid var(--ugb-color-border);
  padding: 0.35rem 0.5rem calc(0.35rem + env(safe-area-inset-bottom, 0));
  box-shadow: var(--ugb-elevation-2);
}

.ugb-bottom-nav__list {
  display: flex;
  justify-content: space-around;
  list-style: none;
  margin: 0;
  padding: 0;
}

.ugb-bottom-nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-width: 3.5rem;
  min-height: 3rem;
  text-decoration: none;
  color: var(--ugb-color-ink-muted);
  font-size: var(--ugb-fs-caption);
  font-weight: var(--ugb-fw-medium);
  padding: var(--ugb-space-1);
  border-radius: var(--ugb-radius-sm);
}

.ugb-bottom-nav__link:hover,
.ugb-bottom-nav__link[aria-current="page"] {
  color: var(--ugb-color-secondary);
}

@media (max-width: 1023.98px) {
  .ugb-bottom-nav {
    display: block;
  }

  body.ugobest-homepage-assembly,
  body.ugobest-astra-child {
    padding-bottom: 4.5rem;
  }
}

@media (min-width: 1024px) {
  .ugb-bottom-nav {
    display: none;
  }
}

/* Hardening polish — overflow, long labels, RTL, transitions */
.ugb-mega__heading a,
.ugb-mega__list a,
.ugb-mega__collection-title {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

.ugb-mega {
  transition: opacity 160ms var(--ugb-ease-standard, ease), transform 160ms var(--ugb-ease-standard, ease);
}

.ugb-mega:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
}

.ugb-drawer__panel {
  transition: transform 200ms var(--ugb-ease-standard, ease);
}

html.ugb-drawer-open,
html.ugb-mega-open {
  overflow: hidden;
}

.ugb-header__badge[hidden],
.ugb-header__cart-count:empty {
  display: none;
}

.ugb-header__badge:not([hidden]),
.ugb-header__cart-count {
  min-width: 1.15rem;
  text-align: center;
}

.ugb-nav__link.is-active,
.ugb-nav__link[aria-current="page"] {
  color: var(--ugb-color-primary);
  font-weight: var(--ugb-fw-semibold, 600);
}

.ugb-mega__icon:empty::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--ugb-color-border), transparent);
}

[dir="rtl"] .ugb-mega__rail {
  border-left: 0;
  border-right: 1px solid var(--ugb-color-border);
  padding-left: 0;
  padding-right: var(--ugb-space-5);
}

[dir="rtl"] .ugb-header.is-hidden {
  transform: translateY(-110%);
}

@media (max-width: 359.98px) {
  .ugb-header__compare .ugb-icon-btn__text,
  .ugb-header__wishlist .ugb-icon-btn__text {
    display: none;
  }

  .ugb-mega__product-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ugb-header,
  .ugb-mega,
  .ugb-drawer__panel,
  .ugb-header__hamburger-line {
    transition: none !important;
  }

  .ugb-drawer:not([hidden]) .ugb-drawer__panel,
  .ugb-drawer:not([hidden]) .ugb-drawer__backdrop {
    animation: none !important;
  }

  .ugb-header.is-hidden {
    transform: none;
  }
}