/* Shared navigation only; existing cards, search, workbench, and theme stay intact. */
.tool-favorites-nav {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: min(1440px, 100%);
  margin: 0 auto 14px;
  font-size: 14px;
}
.header-shell .topbar.has-context-breadcrumbs {
  grid-template-columns: auto auto minmax(90px, 1fr) auto;
}
.header-context-breadcrumbs {
  min-width: 0;
}
.header-context-breadcrumbs .breadcrumbs {
  align-items: center;
  flex-wrap: nowrap;
  gap: 4px;
  min-height: 36px;
  margin: 0;
  padding: 0;
  border: 0;
  overflow-x: auto;
  scrollbar-width: thin;
  white-space: nowrap;
  font-size: 0.76rem;
  line-height: 1;
}
.header-context-breadcrumbs .breadcrumbs a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--muted);
  text-decoration: none;
  transition: border-color .16s ease, color .16s ease, background-color .16s ease;
}
.header-context-breadcrumbs .breadcrumbs a:last-of-type {
  border-color: var(--line);
  background: var(--hover-bg);
  color: var(--text);
  font-weight: 650;
}
.header-context-breadcrumbs .breadcrumbs a:hover {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  background: var(--accent-soft);
  color: var(--accent-strong);
}
.header-context-breadcrumbs .breadcrumbs > span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}
.header-shell .nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--input-bg);
  box-shadow: 0 1px 0 rgb(15 23 42 / .04);
  text-decoration: none;
  transition: border-color .16s ease, color .16s ease, background-color .16s ease, transform .16s ease;
}
.header-shell .nav a:is(:hover, .is-active) {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
  background: var(--accent-soft);
  color: var(--accent-strong);
}
.header-shell .nav a:hover { transform: translateY(-1px); }
.topbar-actions > .tool-favorites-nav {
  flex: 0 0 auto;
  flex-wrap: nowrap;
  width: auto;
  margin: 0;
  font-size: 0.78rem;
}
.tool-context-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  width: min(1440px, 100%);
  min-width: 0;
  margin: 0 auto 10px;
  font-size: 0.78rem;
}
.tool-context-bar .breadcrumbs {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  flex-wrap: nowrap;
  min-height: 36px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
  white-space: nowrap;
  font-size: 0.78rem;
  line-height: 1;
}
.tool-context-bar .breadcrumbs a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 7px;
  border-radius: 7px;
  color: var(--muted);
  text-decoration: none;
  transition: color .16s ease, background-color .16s ease;
}
.tool-context-bar .breadcrumbs > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  line-height: 1;
  transform: translateY(1px);
}
.tool-context-bar .breadcrumbs a:hover {
  color: var(--text);
  background: var(--card-strong);
}
.tool-context-bar .breadcrumbs a:focus-visible,
.tool-context-bar [data-pipeline-start]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.tool-context-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  min-width: 0;
}
.tool-context-actions .tool-pipeline-action { margin: 0; }
.tool-context-actions [data-pipeline-start] {
  min-height: 36px;
  max-width: min(34vw, 360px);
  overflow: hidden;
  text-overflow: ellipsis;
  text-decoration: none;
}
.tool-context-actions .tool-favorites-nav {
  flex-wrap: nowrap;
  width: auto;
  min-height: 36px;
  margin: 0;
}
.favorites-controls { display: flex; align-items: center; gap: 8px; min-width: 0; }
.favorites-home-link, .favorite-toggle, .favorites-menu-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  background: var(--card);
  font: inherit;
  line-height: 1.3;
  cursor: pointer;
  text-decoration: none;
}
.favorites-home-link { width: 36px; padding: 6px; flex: 0 0 auto; }
.favorites-home-link-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.favorite-toggle { min-width: 36px; flex-shrink: 0; }
.favorite-star { font-size: 19px; line-height: 1; }
.favorite-toggle.is-active { color: var(--accent); background: var(--accent-soft); }
.favorites-home-link:hover, .favorite-toggle:hover, .favorites-menu-trigger:hover { background: var(--card-strong); }
.favorites-home-link:focus-visible, .favorite-toggle:focus-visible,
.favorites-menu-trigger:focus-visible, .favorites-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.tool-card .favorite-toggle { margin-inline-start: auto; }
.favorites-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  padding: 2px 6px;
  border-radius: 999px;
  color: var(--text);
  background: var(--card-strong);
  font-size: 12px;
  font-weight: 600;
}
.favorites-menu {
  position: relative;
  flex: 0 0 auto;
  min-width: max-content;
}
.favorites-menu-trigger {
  list-style: none;
  flex: 0 0 auto;
  white-space: nowrap;
}
.favorites-menu-trigger::-webkit-details-marker { display: none; }
.tool-favorites-nav > .favorites-status {
  position: absolute;
  z-index: 20;
  inset-inline-end: 0;
  top: calc(100% + 8px);
  width: max-content;
  max-width: min(360px, calc(100vw - 24px));
  margin: 0;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  pointer-events: none;
}
.favorites-popover {
  display: none;
  position: absolute;
  z-index: 15;
  inset-inline-start: 0;
  top: calc(100% + 8px);
  width: min(340px, calc(100vw - 40px));
  max-height: min(55vh, 420px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}
.favorites-menu[open] > .favorites-popover { display: block; }
.favorites-home {
  width: min(1440px, 100%);
  margin: 0 auto 20px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm, 16px);
  background: var(--surface);
}
.favorites-heading { display: flex; align-items: center; gap: 8px; margin: 0; font-size: 18px; }
.favorites-hint, .favorites-empty, .favorites-status { color: var(--muted); font-size: 13px; line-height: 1.5; }
.favorites-hint { margin: 6px 0 12px; }
.favorites-empty { margin: 8px 0 0; }
.favorites-status { flex-basis: 100%; margin: 8px 0 0; }
.favorites-status:empty { display: none; }
.favorites-list { list-style: none; margin: 0; padding: 0; }
.favorites-home .favorites-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.favorites-item { display: flex; align-items: center; gap: 6px; min-width: 0; padding: 4px; border-radius: 10px; }
.favorites-item:hover { background: var(--card); }
.favorites-link { flex: 1; min-width: 0; padding: 7px; color: var(--text); overflow-wrap: anywhere; text-decoration: none; }
.favorites-link[aria-current="page"] { font-weight: 700; color: var(--accent); }
[data-favorites-home][hidden], [data-favorites-controls][hidden],
.favorites-list[hidden], .favorites-empty[hidden] { display: none !important; }
@media (min-width: 768px) and (max-width: 1180px) {
  .header-shell .topbar.has-context-breadcrumbs {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }
  .topbar.has-context-breadcrumbs > .brand {
    grid-column: 1;
    grid-row: 1;
  }
  .topbar.has-context-breadcrumbs > .header-search {
    grid-column: 2 / 4;
    grid-row: 1;
  }
  .topbar.has-context-breadcrumbs > .header-context-breadcrumbs {
    grid-column: 1;
    grid-row: 2;
  }
  .topbar.has-context-breadcrumbs > .topbar-actions {
    grid-column: 2 / 4;
    grid-row: 2;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}
@media (min-width: 768px) and (max-width: 900px) {
  .topbar.has-context-breadcrumbs > .header-context-breadcrumbs {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .topbar.has-context-breadcrumbs > .topbar-actions {
    grid-column: 1 / -1;
    grid-row: 3;
    justify-content: flex-start;
  }
}
@media (max-width: 767px) {
  .header-shell .topbar.has-context-breadcrumbs {
    grid-template-columns: auto minmax(44px, 1fr);
  }
  .topbar.has-context-breadcrumbs > .brand {
    grid-column: 1;
    grid-row: 1;
  }
  .topbar.has-context-breadcrumbs > .header-search {
    grid-column: 2;
    grid-row: 1;
  }
  .topbar.has-context-breadcrumbs > .header-context-breadcrumbs {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .topbar.has-context-breadcrumbs > .topbar-actions {
    grid-column: 1 / -1;
    grid-row: 3;
  }
  .header-context-breadcrumbs .breadcrumbs {
    min-height: 44px;
  }
}
@media (max-width: 600px) {
  .topbar-actions,
  .tool-context-actions {
    position: relative;
  }
  .topbar-actions > .tool-favorites-nav,
  .tool-context-actions > .tool-favorites-nav {
    position: static;
  }
  .tool-context-bar {
    align-items: stretch;
    flex-direction: column;
    gap: 6px;
  }
  .tool-context-actions { width: 100%; }
  .tool-context-actions .tool-pipeline-action {
    flex: 1 1 auto;
    min-width: 0;
  }
  .tool-context-actions [data-pipeline-start] {
    width: 100%;
    max-width: none;
  }
  .tool-context-actions .tool-favorites-nav { flex: 0 0 auto; }
  .favorites-menu { position: static; }
  .favorites-popover {
    inset-inline: 0;
    width: min(340px, calc(100vw - 24px));
    max-width: calc(100vw - 24px);
    min-width: 0;
    box-sizing: border-box;
    overflow-x: hidden;
  }
  .favorites-home .favorites-list { grid-template-columns: 1fr; }
}
@media (pointer: coarse) {
  .favorites-home-link, .favorite-toggle, .favorites-menu-trigger { min-height: 44px; }
  .favorites-home-link { width: 44px; }
  .favorite-toggle { min-width: 44px; }
  .favorites-link { min-height: 44px; display: flex; align-items: center; }
}
@media (prefers-reduced-motion: reduce) {
  .tool-context-bar .breadcrumbs a, .header-context-breadcrumbs .breadcrumbs a, .header-shell .nav a { transition: none; transform: none; }
}
@media (forced-colors: active) {
  .favorite-toggle.is-active, .favorites-link[aria-current="page"] { outline: 1px solid Highlight; }
}