/* ────────────────────────────────────────────────────────────────
   Unified admin navigation — shared across index.html, users.html,
   orders.html, newsletter.html.
   ──────────────────────────────────────────────────────────────── */

header.unified-admin {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border, rgba(99,102,241,0.16));
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  grid-template-areas:
    "title  actions"
    "tabs   tabs";
  gap: 12px 16px;
  align-items: center;
  flex-wrap: nowrap;
}

header.unified-admin h1 {
  grid-area: title;
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
header.unified-admin h1 small {
  color: var(--text-2, #9a9ab0);
  font-weight: 400;
}

header.unified-admin nav.tabs {
  grid-area: tabs;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent, #6366f1) transparent;
}
header.unified-admin nav.tabs::-webkit-scrollbar { height: 4px; }
header.unified-admin nav.tabs::-webkit-scrollbar-thumb { background: var(--accent, #6366f1); border-radius: 2px; }
header.unified-admin nav.tabs a {
  color: var(--text-2, #9a9ab0);
  text-decoration: none;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.12s, color 0.12s;
}
header.unified-admin nav.tabs a:hover {
  background: var(--card, #1a1a26);
  color: var(--text, #f0f0f5);
}
header.unified-admin nav.tabs a.active {
  background: var(--accent, #6366f1);
  color: white;
}

header.unified-admin .actions {
  grid-area: actions;
  display: flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
  overflow: visible;
}
header.unified-admin .actions button,
header.unified-admin .actions a.btn-link {
  padding: 7px 14px;
  border: 1px solid var(--border, rgba(99,102,241,0.16));
  background: var(--card, #1a1a26);
  color: var(--text, #f0f0f5);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: none;
  font-family: inherit;
}
header.unified-admin .actions button:hover,
header.unified-admin .actions a.btn-link:hover {
  background: var(--card-hover, #22222f);
}
header.unified-admin .actions button.primary {
  background: var(--accent, #6366f1);
  border-color: var(--accent, #6366f1);
  color: #fff;
}
header.unified-admin .actions button.primary:hover { filter: brightness(1.1); }
header.unified-admin .actions button.logout,
header.unified-admin .actions a.logout {
  background: transparent;
  color: var(--text-3, #5a5a72);
  border-color: transparent;
}
header.unified-admin .actions button.logout:hover,
header.unified-admin .actions a.logout:hover {
  color: var(--text, #f0f0f5);
  background: var(--card, #1a1a26);
}

@media (max-width: 640px) {
  header.unified-admin {
    grid-template-columns: 1fr;
    grid-template-areas:
      "title"
      "tabs"
      "actions";
  }
  header.unified-admin .actions {
    justify-content: flex-end;
    flex-wrap: wrap;
  }
  header.unified-admin h1 { font-size: 1rem; }
}