@media (max-width: 520px) {
  .app-header {
    padding-inline: 15px;
  }

  .app-main {
    padding-inline: 14px;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .header-subtitle {
    max-width: 280px;
  }

  .header-badge {
    padding: 8px 11px;
  }

  .card,
  .metric-card {
    padding: 16px;
  }

  .metric-card {
    min-height: 104px;
  }

  .action-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .action-row button {
    width: 100%;
  }

  .bottom-nav {
    min-height: 78px;
  }

  .nav-btn {
    font-size: 0.68rem;
  }

  .nav-icon {
    font-size: 1rem;
  }

  .toast-container {
    bottom: calc(var(--bottom-nav-height) + 12px);
  }
}

@media (min-width: 761px) {
  .app-shell {
    border-inline: 1px solid rgba(148, 163, 184, 0.22);
  }

  .bottom-nav {
    border-inline: 1px solid rgba(148, 163, 184, 0.22);
  }
}