/* Retail-style shell: compact header, hamburger nav, search, category strip, footer grid */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
}

.site-header__tier--prime {
  position: relative;
  z-index: 2;
  background: var(--color-header-dark);
  color: #e8eaed;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.site-header__tier--sub {
  position: relative;
  z-index: 1;
  background: var(--color-header-sub);
  border-bottom: 1px solid var(--color-border);
}

.site-header__shell {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0.35rem max(var(--section-pad-x), env(safe-area-inset-right)) 0.35rem
    max(var(--section-pad-x), env(safe-area-inset-left));
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.45rem 0.6rem;
  align-items: center;
  box-sizing: border-box;
}

@media (max-width: 479px) {
  .site-header__shell {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    column-gap: 0.5rem;
    row-gap: 0.5rem;
  }

  .site-header__tier--prime .logo {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .site-header__tier--prime .nav-toggle {
    grid-column: 2;
    grid-row: 1;
  }

  .header-search {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

.site-header__tier--prime .logo {
  grid-column: 1;
  grid-row: 1;
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-header__tier--prime .logo:hover {
  color: #ffffff;
  text-decoration: none;
  opacity: 0.92;
}

.site-header__tier--prime .logo span {
  color: var(--color-accent-signal);
}

@media (max-width: 400px) {
  .site-header__tier--prime .logo {
    font-size: clamp(0.68rem, 3.2vw, 0.95rem);
  }
}

.header-search {
  display: flex;
  align-items: stretch;
  min-width: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.18);
}

@media (min-width: 480px) {
  .header-search {
    grid-column: 2;
    grid-row: 1;
  }

  .site-header__tier--prime .nav-toggle {
    grid-column: 3;
    grid-row: 1;
  }
}

.header-search input[type="search"] {
  flex: 1;
  min-width: 0;
  border: none;
  padding: 0.45rem 0.55rem;
  /* 16px minimum prevents iOS Safari zoom-on-focus */
  font-size: max(1rem, 16px);
  font-family: inherit;
  border-radius: 0;
}

.header-search input[type="search"]::placeholder {
  color: #6b7280;
}

.header-search__submit {
  flex-shrink: 0;
  min-height: 44px;
  padding: 0 0.85rem;
  border: none;
  background: var(--color-search-btn);
  color: #0f172a;
  font-weight: 700;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease;
}

.header-search__submit:hover {
  background: var(--color-search-btn-hover);
}

.header-search__submit:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: -2px;
}

.site-header__tier--prime .nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}

.site-header__tier--prime .nav-toggle:hover {
  background: rgba(255, 255, 255, 0.18);
}

.nav-toggle__icon {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  box-shadow: 0 5px 0 currentColor, 0 -5px 0 currentColor;
}

.site-header__tier--prime .site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  margin: 0;
  padding: 0.5rem max(var(--section-pad-x), env(safe-area-inset-right)) 0.85rem
    max(var(--section-pad-x), env(safe-area-inset-left));
  background: var(--color-header-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
  z-index: 10;
}

.site-header__tier--prime .site-nav.is-open {
  display: block;
}

.site-header__tier--prime .site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.site-header__tier--prime .site-nav li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header__tier--prime .site-nav li:last-child {
  border-bottom: none;
}

.site-header__tier--prime .site-nav a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.65rem 0.35rem;
  color: #e8eaed;
  font-size: 1rem;
  text-decoration: none;
}

.site-header__tier--prime .site-nav a:hover,
.site-header__tier--prime .site-nav a.is-active {
  color: #ffffff;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
}

.site-header__tier--prime .site-nav a.is-active {
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--color-accent-signal);
}

.site-header__shell--sub {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0.2rem max(var(--section-pad-x), env(safe-area-inset-right)) 0.2rem
    max(var(--section-pad-x), env(safe-area-inset-left));
  overflow-x: auto;
  box-sizing: border-box;
}

@supports (scrollbar-width: thin) {
  .site-header__shell--sub {
    scrollbar-width: thin;
  }
}

.department-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.1rem;
  min-height: 1.85rem;
  align-items: center;
}

.department-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-radius: 4px;
  white-space: nowrap;
  min-height: 36px;
}

@media (max-width: 640px) {
  .department-nav a {
    min-height: 40px;
    padding: 0.35rem 0.65rem;
  }
}

.department-nav a:hover {
  background: rgba(0, 0, 0, 0.05);
  text-decoration: none;
  color: var(--color-text);
}

.site-footer {
  margin-top: auto;
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 0;
  border-top: none;
}

.site-footer__grid {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem max(var(--section-pad-x), env(safe-area-inset-right)) 2rem
    max(var(--section-pad-x), env(safe-area-inset-left));
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem) clamp(1rem, 2.5vw, 1.5rem);
  box-sizing: border-box;
}

@media (min-width: 640px) {
  .site-footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-col__title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin: 0 0 1rem;
  color: var(--color-footer-heading);
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: var(--color-footer-link);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-col a:hover {
  text-decoration: underline;
  color: var(--color-footer-link-hover);
}

.site-footer__bottom {
  border-top: 1px solid var(--color-footer-border);
  padding: 1.25rem max(var(--section-pad-x), env(safe-area-inset-right)) max(1.75rem, env(safe-area-inset-bottom))
    max(var(--section-pad-x), env(safe-area-inset-left));
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-footer-muted);
  line-height: 1.5;
}

.site-footer__bottom a {
  color: var(--color-footer-muted);
  margin: 0 0.35rem;
}

.site-footer__bottom a:hover {
  color: #ffffff;
}

.browse-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.browse-toolbar .results-count {
  margin-bottom: 0;
}

.browse-toolbar__sell {
  flex-shrink: 0;
}

.browse-sort {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.browse-sort select {
  padding: 0.4rem 2rem 0.4rem 0.5rem;
  min-height: 44px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: max(1rem, 16px);
  cursor: pointer;
}