ui improvement

src/components/searchInput.css

@@ -0,0 +1,82 @@
+/* ══ Search box ════════════════════════════════════════════════════════════
+   Shaped to match the view-tab track it sits opposite — see the note in
+   `SearchInput.tsx`. Every number here is the same number `tabBar.css` uses.  */
+
+.searchbox {
+  display: inline-flex;
+  align-items: center;
+  gap: 7px;
+  /* The track's height and the track's corner. This is the whole point of the
+     component: a search that is visibly the same object as the buttons at the
+     other end of the row. */
+  height: 38px;
+  padding: 0 10px;
+  border-radius: var(--card-radius-sm);
+  border: var(--card-border);
+  background: var(--card-bg);
+  box-shadow: var(--card-shadow);
+  max-width: 100%;
+  transition: border-color 160ms ease, box-shadow 160ms ease;
+}
+
+/* Fills its container, for a box sitting directly above the list it filters. */
+.searchbox[data-full='true'] { display: flex; width: 100%; }
+
+.searchbox:hover { border-color: var(--color-ink-4); }
+
+/* Focus lands on the BOX, not on the bare input inside it — the input has no
+   border of its own, so the default ring would draw inside the box and read as
+   a second, smaller field. */
+.searchbox:focus-within {
+  border-color: var(--color-brand);
+  box-shadow: 0 0 0 3px var(--color-brand-tint);
+}
+
+.searchbox-icon { flex: none; color: var(--color-ink-4); }
+.searchbox:focus-within .searchbox-icon { color: var(--color-brand); }
+
+.searchbox-input {
+  flex: 1 1 auto;
+  min-width: 0;
+  border: 0;
+  padding: 0;
+  background: transparent;
+  color: var(--color-ink-1);
+  font: 400 13px/1 var(--font-sans);
+  outline: none;
+  /* Safari draws its own rounded field and inner shadow on a text input, and
+     `type="search"` adds a magnifier and a cancel button on top of ours. */
+  appearance: none;
+  -webkit-appearance: none;
+}
+.searchbox-input::placeholder { color: var(--color-ink-4); }
+.searchbox-input::-webkit-search-decoration,
+.searchbox-input::-webkit-search-cancel-button,
+.searchbox-input::-webkit-search-results-button {
+  appearance: none;
+  -webkit-appearance: none;
+  display: none;
+}
+
+.searchbox-clear {
+  flex: none;
+  display: grid;
+  place-items: center;
+  width: 18px;
+  height: 18px;
+  padding: 0;
+  border: 0;
+  border-radius: 999px;
+  background: var(--color-surface-sunken);
+  color: var(--color-ink-3);
+  cursor: pointer;
+  transition: background 140ms ease, color 140ms ease;
+}
+.searchbox-clear:hover { background: var(--color-line); color: var(--color-ink-1); }
+.searchbox-clear:focus-visible { outline: 2px solid var(--color-brand); outline-offset: 1px; }
+
+/* On a phone the header row wraps, and a 260px box beside a scrolling tab
+   track leaves neither enough room. It takes the full line instead. */
+@media (max-width: 600px) {
+  .searchbox { width: 100% !important; }
+}