.rhc-wrap {
  max-width: 720px;
  margin: 40px auto;
  padding: 28px 32px;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
.rhc-wrap h1 { margin: 0 0 6px; font-size: 24px; color: #1a73e8; }
.rhc-tagline { color: #666; margin: 0 0 18px; font-size: 14px; }
.rhc-user { color: #444; font-size: 13px; margin: 8px 0; }
.rhc-status-line { margin: 10px 0 14px; font-size: 13px; color: #555; }
.rhc-btn {
  display: inline-block; padding: 10px 18px; border: none; border-radius: 6px;
  font-size: 14px; font-weight: 600; cursor: pointer; margin-right: 8px;
}
.rhc-btn-primary { background: #1a73e8; color: #fff; }
.rhc-btn-primary:hover { background: #155cb8; }
.rhc-btn-primary:disabled { background: #9bb6d6; cursor: wait; }
.rhc-btn-secondary { background: #eee; color: #333; }
.rhc-btn-secondary:hover { background: #ddd; }
.rhc-banner {
  padding: 10px 14px; border-radius: 6px; margin: 12px 0; font-size: 13px;
}
.rhc-banner-ok { background: #e8f5e9; color: #2e7d32; border: 1px solid #66bb6a; }
.rhc-banner-fail { background: #ffebee; color: #c62828; border: 1px solid #ef5350; }
.rhc-region-row { margin: 12px 0; font-size: 13px; }
.rhc-region-row label { font-weight: 600; color: #444; }
.rhc-region-row select { margin-left: 6px; padding: 4px 8px; border-radius: 4px; border: 1px solid #ccc; font-size: 13px; }
.rhc-region-hint { display: block; font-size: 11px; color: #888; margin-top: 4px; }

/* ==== Dashboard: vehicle cards ==== */
.rhc-vehicles { display: grid; gap: 14px; margin-top: 14px; }
.rhc-vehicle-card {
  border: 1px solid #e0e0e0; border-radius: 10px; padding: 14px 16px; background: #fff;
}
.rhc-vehicle-card.tier-full { border-left: 4px solid #2e7d32; }
.rhc-vehicle-card.tier-basic { border-left: 4px solid #f57f17; }
.rhc-vehicle-card.tier-lite { border-left: 4px solid #6a737d; }
.rhc-vehicle-card.tier-unsupported { border-left: 4px solid #c62828; background: #fafafa; }
.rhc-vc-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.rhc-vc-title h3 { margin: 0 0 2px; font-size: 17px; color: #222; }
.rhc-vc-vin { font-size: 11px; color: #888; font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }
.rhc-tier-badge {
  font-size: 11px; padding: 4px 10px; border-radius: 12px; font-weight: 700; white-space: nowrap;
}
.rhc-tier-badge.tier-full { background: #e8f5e9; color: #2e7d32; }
.rhc-tier-badge.tier-basic { background: #fff8e1; color: #f57f17; }
.rhc-tier-badge.tier-lite { background: #f0f3f6; color: #555; }
.rhc-tier-badge.tier-unsupported { background: #ffebee; color: #c62828; }
.rhc-vc-result { margin-top: 10px; }
.rhc-progress { font-size: 13px; color: #1a73e8; padding: 8px 12px; background: #e8f0fe; border-radius: 6px; }
.rhc-result-ok { font-size: 13px; color: #2e7d32; padding: 8px 12px; background: #e8f5e9; border-radius: 6px; }
.rhc-result-fail { font-size: 13px; color: #c62828; padding: 8px 12px; background: #ffebee; border-radius: 6px; }
.rhc-json-details { margin-top: 8px; }
.rhc-json-details summary { cursor: pointer; font-size: 12px; color: #555; padding: 4px 0; }
.rhc-json-details pre { background: #0d1117; color: #c9d1d9; padding: 12px; border-radius: 6px; font-size: 11px; max-height: 400px; overflow: auto; font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }
.rhc-vc-meta { font-size: 12px; color: #555; margin: 8px 0; }
.rhc-vc-reason { font-size: 11px; color: #888; margin-top: 4px; font-style: italic; }
.rhc-vc-actions { margin-top: 8px; }
.rhc-btn-primary:disabled { background: #cfd8e3; cursor: not-allowed; }