/* SRP: page shell, toolbar, and breadcrumb. */

html, body { height: 100%; overflow: hidden; }
body { display: flex; flex-direction: column; }

/* ── Toolbar (breadcrumb + actions) ───────────── */
.drv-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 18px; margin-bottom: 4px;
  border-bottom: 1px solid var(--card-border);
}

/* ── Breadcrumb ──────────────────────────────── */
.drv-breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 14px; }
.drv-crumb-link {
  color: var(--muted); text-decoration: none; cursor: pointer;
  transition: color .12s;
}
.drv-crumb-link:hover { color: var(--text); }
.drv-crumb-sep { color: rgba(255,255,255,.25); font-size: 13px; user-select: none; }
.drv-crumb-current { color: var(--text); font-weight: 600; font-size: 15px; }