import filters for pixiv sidecars, tag filtering, and favicon generation

app/static/style.css

@@ -143,6 +143,58 @@ header {
   transform: translateY(0);
 }
 
+/* Nav dropdown */
+.nav-dropdown {
+  position: relative;
+  display: inline-block;
+}
+
+.nav-dropdown-trigger {
+  cursor: pointer;
+  border: none;
+  background: transparent;
+}
+
+.nav-dropdown-trigger::after {
+  content: " \25BC";
+  font-size: 0.65em;
+  opacity: 0.7;
+}
+
+.nav-dropdown-menu {
+  display: none;
+  position: absolute;
+  top: 100%;
+  left: 50%;
+  transform: translateX(-50%);
+  min-width: 150px;
+  background: var(--surface);
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
+  z-index: 1001;
+  padding: 0.5rem 0;
+  margin-top: 0.25rem;
+}
+
+.nav-dropdown-menu a {
+  display: block;
+  padding: 0.5rem 1rem;
+  color: var(--text);
+  text-decoration: none;
+  font-size: 0.95rem;
+  transition: background 0.15s ease;
+}
+
+.nav-dropdown-menu a:hover {
+  background: var(--hover);
+}
+
+.nav-dropdown:hover .nav-dropdown-menu,
+.nav-dropdown:focus-within .nav-dropdown-menu {
+  display: block;
+}
+
 /*------------------------------------------------------------------------------
   Flash messages
 ------------------------------------------------------------------------------*/
@@ -1003,6 +1055,42 @@ header {
   filter: brightness(1.1);
 }
 
+/* Tag search bar */
+.tag-search-bar {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  max-width: 500px;
+  margin: 0 auto 1rem;
+}
+
+.tag-search-input {
+  flex: 1;
+  padding: 0.6rem 1rem;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--surface);
+  color: var(--text);
+  font-size: 1rem;
+  transition: border-color 0.2s ease, box-shadow 0.2s ease;
+}
+
+.tag-search-input:focus {
+  outline: none;
+  border-color: var(--accent);
+  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
+}
+
+.tag-search-input::placeholder {
+  color: var(--muted);
+}
+
+.tag-search-count {
+  color: var(--muted);
+  font-size: 0.9rem;
+  white-space: nowrap;
+}
+
 /* Filter pills (top of tags_list) */
 .filter-bar {
   display: flex;