.join-card .application-step {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  min-width: 0;
}

.join-card .application-step[hidden] { display: none; }
.join-card .application-step .checkbox-group { grid-column: 1 / -1; }
.join-card .application-actions { grid-column: 1 / -1; display: flex; gap: 12px; }
.join-card .application-actions .btn { min-height: 46px; }
.join-card .application-actions .join-submit-btn { flex: 1; }
.join-card .application-back-btn { flex: 0 0 auto; border: 1px solid var(--border); color: var(--text); background: transparent; }
.join-card .application-back-btn:hover { border-color: var(--text-muted); }

@media (max-width: 640px) {
  .join-card .application-step { grid-template-columns: 1fr; }
}