diff --git a/internal/server/web/static/app.css b/internal/server/web/static/app.css
index 3a37dc7..278b052 100644
--- a/internal/server/web/static/app.css
+++ b/internal/server/web/static/app.css
@@ -63,6 +63,16 @@ button:hover, .btn:hover { background: var(--accent-hover); text-decoration: non
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn.icon { width: 30px; height: 30px; padding: 0; display: inline-flex;
align-items: center; justify-content: center; font-size: 14px; line-height: 1; text-decoration: none; }
+/* Name of an icon button, shown at once on hover or keyboard focus. */
+[data-tip] { position: relative; }
+[data-tip]::after {
+ content: attr(data-tip); position: absolute; bottom: calc(100% + 6px); left: 50%;
+ transform: translateX(-50%); padding: 4px 8px; border-radius: 6px; white-space: nowrap;
+ background: #0c0f13; border: 1px solid var(--border); color: var(--text);
+ font-size: 12px; font-weight: 400; line-height: 1.4;
+ opacity: 0; visibility: hidden; pointer-events: none; z-index: 10;
+}
+[data-tip]:hover::after, [data-tip]:focus-visible::after { opacity: 1; visibility: visible; }
.err { background: #3a1d1d; border: 1px solid #6b2b2b; color: #ffb3b3; padding: 10px 12px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 14px; }
diff --git a/internal/server/web/templates/dashboard.html b/internal/server/web/templates/dashboard.html
index cf29f68..bbdf1d9 100644
--- a/internal/server/web/templates/dashboard.html
+++ b/internal/server/web/templates/dashboard.html
@@ -33,25 +33,25 @@
| {{.Seen}} |
|