diff --git a/internal/views/static/css/kafka.css b/internal/views/static/css/kafka.css
index 8ae97ea..d23ea7a 100644
--- a/internal/views/static/css/kafka.css
+++ b/internal/views/static/css/kafka.css
@@ -975,6 +975,306 @@ a:focus-visible {
   background: var(--border-focus);
 }
 
+/* ============================================================
+   Three-Column Results Layout
+   ============================================================ */
+
+.results-layout {
+  display: grid;
+  grid-template-columns: 200px 1fr 240px;
+  gap: 2rem;
+  align-items: start;
+}
+
+.results-layout .left-sidebar {
+  position: sticky;
+  top: calc(var(--header-height) + 1.5rem);
+  max-height: calc(100vh - var(--header-height) - 3rem);
+  overflow-y: auto;
+}
+
+.results-layout .right-sidebar {
+  position: sticky;
+  top: calc(var(--header-height) + 1.5rem);
+  max-height: calc(100vh - var(--header-height) - 3rem);
+  overflow-y: auto;
+}
+
+.results-layout .results-column {
+  min-width: 0;
+}
+
+/* Tablet: hide left sidebar, two columns */
+@media (min-width: 769px) and (max-width: 1024px) {
+  .results-layout {
+    grid-template-columns: 1fr 220px;
+  }
+  .results-layout .left-sidebar {
+    display: none;
+  }
+}
+
+/* Mobile: single column, no sidebars */
+@media (max-width: 768px) {
+  .results-layout {
+    grid-template-columns: 1fr;
+  }
+  .results-layout .left-sidebar,
+  .results-layout .right-sidebar {
+    display: none;
+  }
+}
+
+/* ============================================================
+   Preferences Page Layout
+   ============================================================ */
+
+.preferences-layout {
+  display: grid;
+  grid-template-columns: 200px 1fr;
+  gap: 2rem;
+  align-items: start;
+  padding: 2rem 0;
+}
+
+.preferences-nav {
+  position: sticky;
+  top: calc(var(--header-height) + 1.5rem);
+}
+
+.preferences-nav-item {
+  display: flex;
+  align-items: center;
+  gap: 0.6rem;
+  padding: 0.6rem 0.75rem;
+  border-radius: var(--radius-sm);
+  color: var(--text-secondary);
+  text-decoration: none;
+  font-size: 0.9rem;
+  transition: background 0.15s, color 0.15s;
+  cursor: pointer;
+}
+
+.preferences-nav-item:hover {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+}
+
+.preferences-nav-item.active {
+  background: var(--accent-soft);
+  color: var(--accent);
+  font-weight: 500;
+}
+
+.preferences-content {
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: var(--radius-lg);
+  padding: 1.5rem;
+}
+
+@media (max-width: 768px) {
+  .preferences-layout {
+    grid-template-columns: 1fr;
+  }
+  .preferences-nav {
+    position: static;
+    display: flex;
+    overflow-x: auto;
+    gap: 0.5rem;
+    padding-bottom: 0.5rem;
+  }
+  .preferences-nav-item {
+    white-space: nowrap;
+  }
+}
+
+/* ============================================================
+   Category Tiles
+   ============================================================ */
+
+.category-tiles {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
+  gap: 1rem;
+  margin-top: 2rem;
+}
+
+.category-tile {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 1rem 0.5rem;
+  border-radius: var(--radius-md);
+  text-decoration: none;
+  color: var(--text-secondary);
+  font-size: 0.85rem;
+  transition: background 0.15s, color 0.15s, transform 0.15s, box-shadow 0.15s;
+}
+
+.category-tile:hover {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  transform: translateY(-2px);
+  box-shadow: var(--shadow-sm);
+}
+
+.category-tile-icon {
+  font-size: 1.5rem;
+  line-height: 1;
+}
+
+.category-tile.disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+  pointer-events: none;
+}
+
+@media (max-width: 768px) {
+  .category-tiles {
+    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
+    gap: 0.75rem;
+  }
+  .category-tile {
+    padding: 0.75rem 0.25rem;
+    font-size: 0.75rem;
+  }
+  .category-tile-icon {
+    font-size: 1.25rem;
+  }
+}
+
+/* ============================================================
+   Left Sidebar (Results Page)
+   ============================================================ */
+
+.left-sidebar {
+  padding: 0;
+}
+
+.sidebar-nav {
+  display: flex;
+  flex-direction: column;
+  gap: 0.25rem;
+}
+
+.sidebar-nav-title {
+  font-size: 0.7rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--text-muted);
+  padding: 0.5rem 0.75rem;
+  margin-top: 0.5rem;
+}
+
+.sidebar-nav-item {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.5rem 0.75rem;
+  border-radius: var(--radius-sm);
+  color: var(--text-secondary);
+  text-decoration: none;
+  font-size: 0.875rem;
+  transition: background 0.15s, color 0.15s;
+}
+
+.sidebar-nav-item:hover {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+}
+
+.sidebar-nav-item.active {
+  background: var(--accent-soft);
+  color: var(--accent);
+  font-weight: 500;
+}
+
+.sidebar-nav-item-icon {
+  font-size: 1rem;
+  width: 20px;
+  text-align: center;
+}
+
+.sidebar-filters {
+  margin-top: 1rem;
+  padding-top: 1rem;
+  border-top: 1px solid var(--border);
+}
+
+.sidebar-filter-group {
+  margin-bottom: 0.75rem;
+}
+
+.sidebar-filter-label {
+  font-size: 0.75rem;
+  font-weight: 500;
+  color: var(--text-muted);
+  padding: 0 0.75rem;
+  margin-bottom: 0.25rem;
+}
+
+.sidebar-filter-option {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.35rem 0.75rem;
+  font-size: 0.8rem;
+  color: var(--text-secondary);
+  cursor: pointer;
+  border-radius: var(--radius-sm);
+  transition: background 0.15s;
+}
+
+.sidebar-filter-option:hover {
+  background: var(--bg-tertiary);
+}
+
+.sidebar-filter-option input[type="radio"] {
+  accent-color: var(--accent);
+}
+
+/* Mobile filter chips */
+.mobile-filter-chips {
+  display: none;
+  overflow-x: auto;
+  gap: 0.5rem;
+  padding: 0.75rem 0;
+  -webkit-overflow-scrolling: touch;
+}
+
+.mobile-filter-chips::-webkit-scrollbar {
+  display: none;
+}
+
+.mobile-filter-chip {
+  display: inline-flex;
+  align-items: center;
+  padding: 0.4rem 0.75rem;
+  border: 1px solid var(--border);
+  border-radius: var(--radius-full);
+  font-size: 0.8rem;
+  color: var(--text-secondary);
+  white-space: nowrap;
+  text-decoration: none;
+  transition: background 0.15s, border-color 0.15s;
+}
+
+.mobile-filter-chip:hover,
+.mobile-filter-chip.active {
+  background: var(--accent-soft);
+  border-color: var(--accent);
+  color: var(--accent);
+}
+
+@media (max-width: 768px) {
+  .mobile-filter-chips {
+    display: flex;
+  }
+}
+
 /* ============================================================
    Print
    ============================================================ */