diff --git a/app/static/css/labels-bricklink.css b/app/static/css/labels-bricklink.css
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+/*
+ * Catalogue skin for the parts labelling pages.
+ *
+ * Deliberately denser and cooler-toned than the rest of LIM: this is a
+ * reference catalogue you scan hundreds of rows in, not a library of sets
+ * you browse by cover art. Small type, tight rows, thin rules, counts
+ * everywhere - the conventions old-school parts catalogues settled on
+ * because they work for this job.
+ *
+ * Scoped to .bl - nothing here leaks into the red LEGO-themed pages.
+ * These are our own colours and layout, not a copy of anyone's site.
+ *
+ * Created by: Jess Rogerson (yelling commands at Claude.AI)
+ */
+
+.bl {
+    --bl-navy: #0b3c5d;
+    --bl-navy-dark: #072a41;
+    --bl-blue: #1e6ba8;
+    --bl-blue-light: #e8f1f8;
+    --bl-amber: #f0a500;
+    --bl-line: #c3cdd6;
+    --bl-line-soft: #e2e8ed;
+    --bl-bg: #f4f6f8;
+    --bl-row-alt: #fafbfc;
+    --bl-text: #1f2d3a;
+    --bl-muted: #6b7b8a;
+
+    font-size: 13px;
+    color: var(--bl-text);
+}
+
+.bl a { color: var(--bl-blue); text-decoration: none; }
+.bl a:hover { text-decoration: underline; }
+
+/* ---------------------------------------------------------- title bar */
+
+.bl-bar {
+    background: linear-gradient(180deg, var(--bl-navy) 0%, var(--bl-navy-dark) 100%);
+    color: #fff;
+    padding: 8px 12px;
+    border-radius: 3px 3px 0 0;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+    flex-wrap: wrap;
+}
+
+.bl-bar h1,
+.bl-bar h2 {
+    font-size: 15px;
+    font-weight: 700;
+    margin: 0;
+    letter-spacing: .2px;
+    color: #fff;
+}
+
+.bl-bar .bl-sub { color: #b9d2e4; font-size: 12px; }
+
+/* --------------------------------------------------------- navigation */
+
+.bl-tabs {
+    display: flex;
+    gap: 1px;
+    background: var(--bl-navy-dark);
+    padding: 0 6px;
+    flex-wrap: wrap;
+}
+
+.bl-tabs a {
+    color: #cfe1ee;
+    padding: 6px 12px;
+    font-size: 12px;
+    font-weight: 600;
+    border-radius: 3px 3px 0 0;
+    white-space: nowrap;
+}
+
+.bl-tabs a:hover { background: #10486c; color: #fff; text-decoration: none; }
+.bl-tabs a.active { background: var(--bl-bg); color: var(--bl-navy); }
+
+.bl-crumb {
+    background: var(--bl-blue-light);
+    border: 1px solid var(--bl-line);
+    border-top: 0;
+    padding: 5px 10px;
+    font-size: 12px;
+    color: var(--bl-muted);
+}
+
+.bl-crumb a { font-weight: 600; }
+.bl-crumb .sep { color: #9fb3c3; margin: 0 5px; }
+
+/* ------------------------------------------------------------- panels */
+
+.bl-panel {
+    background: #fff;
+    border: 1px solid var(--bl-line);
+    border-radius: 3px;
+    margin-bottom: 12px;
+}
+
+.bl-panel > .bl-panel-head {
+    background: var(--bl-blue-light);
+    border-bottom: 1px solid var(--bl-line);
+    padding: 6px 10px;
+    font-weight: 700;
+    font-size: 12px;
+    text-transform: uppercase;
+    letter-spacing: .4px;
+    color: var(--bl-navy);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 8px;
+}
+
+.bl-panel > .bl-panel-body { padding: 10px; }
+.bl-panel > .bl-panel-body.tight { padding: 0; }
+
+/* -------------------------------------------------------------- table */
+
+.bl-table { width: 100%; border-collapse: collapse; font-size: 12px; }
+
+.bl-table thead th {
+    background: #dde5ec;
+    border-bottom: 1px solid var(--bl-line);
+    padding: 5px 8px;
+    text-align: left;
+    font-weight: 700;
+    font-size: 11px;
+    text-transform: uppercase;
+    letter-spacing: .3px;
+    color: var(--bl-navy);
+    white-space: nowrap;
+}
+
+.bl-table tbody td {
+    padding: 4px 8px;
+    border-bottom: 1px solid var(--bl-line-soft);
+    vertical-align: middle;
+}
+
+.bl-table tbody tr:nth-child(even) { background: var(--bl-row-alt); }
+.bl-table tbody tr:hover { background: #fff7e0; }
+
+.bl-table .num {
+    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
+    font-size: 11px;
+    color: var(--bl-navy);
+}
+
+.bl-table .thumb {
+    width: 40px; height: 32px;
+    object-fit: contain;
+    background: #fff;
+    border: 1px solid var(--bl-line-soft);
+}
+
+.bl-name { font-weight: 600; }
+.bl-dim { color: var(--bl-muted); font-weight: 400; }
+
+/* --------------------------------------------------------------- tree */
+
+.bl-tree { font-size: 12px; }
+
+.bl-tree a {
+    display: flex;
+    justify-content: space-between;
+    gap: 6px;
+    padding: 3px 10px;
+    color: var(--bl-text);
+    border-bottom: 1px solid var(--bl-line-soft);
+}
+
+.bl-tree a:hover { background: var(--bl-blue-light); text-decoration: none; }
+
+.bl-tree a.active {
+    background: var(--bl-navy);
+    color: #fff;
+    font-weight: 600;
+}
+
+.bl-tree a.active .bl-count { color: #cfe1ee; }
+.bl-tree .child { padding-left: 24px; font-size: 11.5px; }
+.bl-tree .bl-count { color: var(--bl-muted); font-variant-numeric: tabular-nums; }
+
+.bl-swatch {
+    display: inline-block;
+    width: 9px; height: 9px;
+    border-radius: 2px;
+    margin-right: 5px;
+    vertical-align: baseline;
+}
+
+/* ------------------------------------------------------------ buttons */
+
+.bl-btn {
+    display: inline-block;
+    background: linear-gradient(180deg, #fff 0%, #e9eef2 100%);
+    border: 1px solid var(--bl-line);
+    border-radius: 3px;
+    padding: 4px 10px;
+    font-size: 12px;
+    font-weight: 600;
+    color: var(--bl-navy);
+    cursor: pointer;
+    white-space: nowrap;
+}
+
+.bl-btn:hover { background: #fff; border-color: var(--bl-blue); text-decoration: none; }
+.bl-btn:disabled { opacity: .55; cursor: not-allowed; }
+
+.bl-btn-primary {
+    background: linear-gradient(180deg, #2b82c4 0%, var(--bl-blue) 100%);
+    border-color: #15567f;
+    color: #fff;
+}
+.bl-btn-primary:hover { background: #2b82c4; color: #fff; }
+
+.bl-btn-go {
+    background: linear-gradient(180deg, #ffc23d 0%, var(--bl-amber) 100%);
+    border-color: #c98700;
+    color: #3d2a00;
+}
+.bl-btn-go:hover { background: #ffc23d; color: #3d2a00; }
+
+.bl-btn-sm { padding: 2px 7px; font-size: 11px; }
+
+/* ------------------------------------------------------------- fields */
+
+.bl input[type="text"],
+.bl input[type="search"],
+.bl input[type="number"],
+.bl input[type="url"],
+.bl select,
+.bl textarea {
+    border: 1px solid var(--bl-line);
+    border-radius: 3px;
+    padding: 3px 6px;
+    font-size: 12px;
+    background: #fff;
+    color: var(--bl-text);
+}
+
+.bl input:focus, .bl select:focus, .bl textarea:focus {
+    outline: 0;
+    border-color: var(--bl-blue);
+    box-shadow: 0 0 0 2px rgba(30, 107, 168, .15);
+}
+
+.bl label.fld { display: block; font-size: 11px; font-weight: 700;
+                color: var(--bl-muted); text-transform: uppercase;
+                letter-spacing: .3px; margin-bottom: 2px; }
+
+.bl .bl-filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; }
+
+/* -------------------------------------------------------------- stats */
+
+.bl-stats { display: flex; flex-wrap: wrap; gap: 0; }
+
+.bl-stat {
+    flex: 1 1 110px;
+    padding: 8px 10px;
+    border-right: 1px solid var(--bl-line-soft);
+}
+.bl-stat:last-child { border-right: 0; }
+.bl-stat .v { font-size: 18px; font-weight: 700; color: var(--bl-navy);
+              font-variant-numeric: tabular-nums; line-height: 1.1; }
+.bl-stat .k { font-size: 10.5px; text-transform: uppercase; letter-spacing: .4px;
+              color: var(--bl-muted); font-weight: 600; }
+
+/* ----------------------------------------------------------- progress */
+
+.bl-progress {
+    height: 16px;
+    background: #dde5ec;
+    border: 1px solid var(--bl-line);
+    border-radius: 3px;
+    overflow: hidden;
+}
+
+.bl-progress > span {
+    display: block;
+    height: 100%;
+    background: linear-gradient(180deg, #43a3e0 0%, var(--bl-blue) 100%);
+    width: 0;
+    transition: width .4s ease;
+}
+
+/* -------------------------------------------------------------- misc */
+
+.bl-tag {
+    display: inline-block;
+    font-size: 10px;
+    font-weight: 700;
+    text-transform: uppercase;
+    letter-spacing: .3px;
+    padding: 1px 5px;
+    border-radius: 2px;
+    background: #dde5ec;
+    color: var(--bl-navy);
+}
+
+.bl-tag.ok { background: #d6f0da; color: #1d6b2c; }
+.bl-tag.warn { background: #fdeccc; color: #8a5a00; }
+.bl-tag.err { background: #f8d7da; color: #8a1c24; }
+
+.bl-pager { display: flex; gap: 4px; align-items: center;
+            justify-content: center; padding: 8px; font-size: 12px; }
+.bl-pager .bl-btn.on { background: var(--bl-navy); color: #fff;
+                       border-color: var(--bl-navy-dark); }
+
+.bl-empty { padding: 28px 12px; text-align: center; color: var(--bl-muted); }
+
+.bl-tape-preview {
+    background: repeating-linear-gradient(45deg, #eef2f5, #eef2f5 8px,
+                                          #e4eaef 8px, #e4eaef 16px);
+    border: 1px solid var(--bl-line);
+    border-radius: 3px;
+    padding: 10px;
+    overflow-x: auto;
+}
+.bl-tape-preview img {
+    display: block;
+    background: #fff;
+    box-shadow: 0 1px 4px rgba(0,0,0,.25);
+}
+
+@media (max-width: 767px) {
+    .bl { font-size: 12px; }
+    .bl-tabs a { padding: 6px 9px; }
+    .bl-stat { flex-basis: 50%; }
+}