.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 50%;
  display: flex;
  width: min(100%, 76rem);
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--page-gutter);
  transform: translateX(-50%);
  border-bottom: 1px solid var(--glass-border);
  background: var(--glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font: var(--body-lg);
  font-weight: 700;
  letter-spacing: -0.04em;
}
.brand__logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
}
.header-action {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--on-surface-variant);
  font-weight: 600;
}
.button--ghost {
  color: var(--on-surface-variant);
  font-weight: 600;
}

.button {
  display: inline-flex;
  min-height: 2.875rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border: 0;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-weight: 600;
}

.button--primary {
  background: var(--primary);
  color: var(--on-primary);
}

.button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.button--ghost {
  background: transparent;
}

.bottom-dock {
  position: fixed;
  z-index: 10;
  bottom: max(1rem, env(safe-area-inset-bottom));
  left: 50%;
  display: flex;
  max-width: calc(100vw - 2 * var(--page-gutter));
  gap: 0.375rem;
  padding: 0.5rem;
  border: 1px solid var(--glass-border-visible);
  border-radius: var(--radius-full);
  background: var(--glass);
  box-shadow:
    var(--shadow-dock),
    inset 0 0 0 1px rgb(255 255 255 / 15%);
  -webkit-backdrop-filter: var(--glass-2-blur);
  backdrop-filter: var(--glass-2-blur);
  transform: translateX(-50%);
}

.dock-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  box-sizing: content-box;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-full);
  font: var(--label-md);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-label);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}
.dock-link:hover {
  background: var(--surface-container-high);
}
.dock-link:active {
  background: var(--surface-container-highest);
}
.dock-link[aria-current="page"] {
  background: var(--primary);
  color: var(--on-primary);
}
.dock-icon {
  width: 1rem;
  height: 1rem;
  max-width: none;
  min-width: 0;
  flex: 0 0 auto;
}
.dock-label {
  display: inline-block;
  line-height: 1;
  pointer-events: none;
}
.dock-link--collapsible .dock-label {
  display: none;
}
@media (min-width: 30rem) {
  .dock-link--collapsible .dock-label {
    display: inline;
  }
}
.header-action .icon {
  width: 1rem;
  height: 1rem;
}
.header-action__avatar {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex: 0 0 auto;
}
.header-action span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 10rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: auto;
}

.prefs-dropdown {
  position: relative;
}
.prefs-dropdown__trigger {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: background 0.15s ease;
}
.prefs-dropdown__trigger:hover {
  background: var(--surface-container);
}
.prefs-dropdown__trigger .icon {
  width: 1rem;
  height: 1rem;
}
.prefs-dropdown__menu {
  position: absolute;
  top: calc(100% + 0.25rem);
  right: 0;
  min-width: 11rem;
  margin: 0;
  padding: 0.5rem;
  border: 1px solid var(--glass-border-visible);
  border-radius: var(--radius-md);
  background: var(--glass-2);
  -webkit-backdrop-filter: var(--glass-2-blur);
  backdrop-filter: var(--glass-2-blur);
  box-shadow: var(--shadow-modal);
  z-index: 20;
}
.prefs-dropdown__section {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}
.prefs-dropdown__label {
  margin: 0 0 0.25rem;
  padding: 0 0.5rem;
  color: var(--on-surface-variant);
  font: var(--label-md);
}
.prefs-dropdown__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.prefs-dropdown__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.625rem;
  border-radius: var(--radius-sm);
  color: var(--on-surface);
  font: var(--body-md);
  cursor: pointer;
  transition: background 0.15s ease;
}
.prefs-dropdown__item .icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
}
.prefs-dropdown__item:hover {
  background: var(--surface-container);
}
.prefs-dropdown__item[aria-selected="true"] {
  font-weight: 600;
  color: var(--primary);
}
.prefs-dropdown__divider {
  height: 1px;
  margin: 0.5rem 0;
  background: var(--glass-border-visible);
}

.user-menu {
  position: relative;
  margin-left: auto;
}
.user-menu__trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--on-surface);
  cursor: pointer;
  font: var(--body-md);
  transition: background 0.15s ease;
}
.user-menu__trigger:hover {
  background: var(--surface-container);
}
.user-menu__trigger .icon {
  width: 1rem;
  height: 1rem;
}
.user-menu__chevron {
  opacity: 0.5;
  transition: transform 0.2s ease;
}
.user-menu[data-open] .user-menu__chevron {
  transform: rotate(180deg);
}
.user-menu__panel,
.user-menu__submenu {
  position: absolute;
  top: calc(100% + 0.25rem);
  right: 0;
  min-width: 12rem;
  margin: 0;
  padding: 0.5rem;
  border: 1px solid var(--glass-border-visible);
  border-radius: var(--radius-md);
  background: var(--glass-2);
  -webkit-backdrop-filter: var(--glass-2-blur);
  backdrop-filter: var(--glass-2-blur);
  box-shadow: var(--shadow-modal);
  z-index: 20;
}
.user-menu__header {
  padding: 0.5rem 0.625rem 0.375rem;
}
.user-menu__name {
  margin: 0;
  font: var(--body-md);
  font-weight: 600;
  color: var(--on-surface);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-menu__email {
  margin: 0;
  font: var(--label-sm);
  color: var(--on-surface-variant);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-menu__divider {
  height: 1px;
  margin: 0.5rem 0;
  background: var(--glass-border-visible);
}
.user-menu__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.user-menu__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.625rem;
  border-radius: var(--radius-sm);
  color: var(--on-surface);
  font: var(--body-md);
  cursor: pointer;
  transition: background 0.15s ease;
}
.user-menu__item .icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
}
.user-menu__item:hover {
  background: var(--surface-container);
}
.user-menu__item-arrow {
  margin-left: auto;
  opacity: 0.5;
}
.user-menu__item--danger {
  color: var(--error);
}
.user-menu__item--danger:hover {
  background: color-mix(in srgb, var(--error) 8%, transparent);
}
.user-menu__item[aria-selected="true"] {
  font-weight: 600;
  color: var(--primary);
}
.user-menu__back {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  width: 100%;
  padding: 0.5rem 0.625rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--on-surface);
  font: var(--body-md);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}
.user-menu__back:hover {
  background: var(--surface-container);
}
.user-menu__back .icon {
  width: 1rem;
  height: 1rem;
}

.listing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}
.listing-card {
  overflow: hidden;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  background: var(--glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  transition: transform 0.2s ease;
}
.listing-card:active {
  transform: scale(0.98);
}
.listing-card__media {
  display: grid;
  aspect-ratio: 4 / 5;
  place-items: center;
  overflow: hidden;
  background: var(--surface-container);
  color: var(--on-surface-variant);
  position: relative;
}
.listing-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.listing-card__media--empty .placeholder-icon {
  width: 2rem;
  height: 2rem;
  opacity: 0.2;
}
.listing-card__badge {
  position: absolute;
  top: var(--space-xs);
  left: var(--space-xs);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  background: rgb(0 0 0 / 60%);
  color: var(--on-primary);
  font: var(--label-md);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-label);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 1;
}
.listing-card__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
}
.listing-card__title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}
.listing-card__title {
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.listing-card__price {
  flex: 0 0 auto;
  font: var(--body-md);
  font-family: var(--font-display);
  font-weight: 600;
}
.listing-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--on-surface-variant);
  font: var(--body-md);
}
.listing-card__meta-icon {
  width: 0.875rem;
  height: 0.875rem;
  flex: 0 0 auto;
  color: var(--on-surface);
}
.listing-card__meta-icon--muted {
  color: var(--on-surface-variant);
  opacity: 0.5;
}
.listing-card__meta-sep {
  color: var(--on-surface-variant);
  opacity: 0.4;
}
.listing-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
}
.listing-card__author-avatar {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex: 0 0 auto;
}
.listing-card__author-avatar--placeholder {
  width: 1rem;
  height: 1rem;
  opacity: 0.5;
}
.listing-card__author-name {
  font: var(--body-md);
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.empty-state {
  display: grid;
  max-width: 30rem;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
}
.empty-state p:not(.eyebrow) {
  color: var(--on-surface-variant);
}

@media (min-width: 40rem) {
  .listing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 64rem) {
  .listing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Shared form utilities — used by auth page, profile edit sheet, and other forms */
.form-error {
  padding: var(--space-sm);
  border-radius: var(--radius-default);
  background: color-mix(in srgb, var(--error) 12%, transparent);
  color: var(--error);
  font: var(--body-md);
}
.form-divider {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--outline);
  color: var(--on-surface-variant);
  font: var(--body-md);
  font-weight: 600;
}
.field-hint {
  color: var(--on-surface-variant);
  font: var(--body-md);
}
.label-optional {
  color: var(--on-surface-variant);
  font: var(--label-md);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-label);
}