@media (max-width: 1080px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-goal-card {
    width: 100%;
  }
}

@media (max-width: 820px) {
  .sidebar {
    display: none;
  }

  .main-wrapper {
    margin-left: 0;
    padding-bottom: calc(var(--mobile-nav-height) + 16px);
  }

  .mobile-brand {
    display: inline-flex;
  }

  .topbar {
    padding: 0 16px;
    height: 60px;
  }

  .page-title {
    font-size: 1.05rem;
  }

  .main-content {
    padding: 18px 16px;
  }

  .cefr-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .mobile-bottom-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--mobile-nav-height);
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    z-index: 120;
    padding: 4px 6px;
    box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.06);
  }

  .mobile-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 700;
    min-height: 48px;
    padding: 4px 2px;
    transition: color var(--transition-fast), background-color var(--transition-fast);
  }

  .mobile-nav-btn.active {
    color: var(--brand-primary);
    background-color: var(--brand-primary-soft);
  }

  .mobile-nav-btn svg {
    width: 20px;
    height: 20px;
  }

  .mobile-drawer-backdrop {
    display: flex;
    align-items: flex-end;
    position: fixed;
    inset: 0;
    background-color: var(--bg-backdrop);
    z-index: 140;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
  }

  .mobile-drawer-backdrop.open {
    opacity: 1;
    visibility: visible;
  }

  .mobile-drawer {
    width: 100%;
    max-height: 82vh;
    background-color: var(--bg-surface);
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
    padding: 20px 16px calc(var(--mobile-nav-height) + 20px);
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
  }

  .mobile-drawer-backdrop.open .mobile-drawer {
    transform: translateY(0);
  }

  .mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
  }

  .mobile-drawer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .drawer-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border-radius: var(--radius-md);
    background-color: var(--bg-surface-muted);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.88rem;
    min-height: 48px;
    text-align: left;
  }

  .drawer-nav-item.active {
    background-color: var(--brand-primary-soft);
    color: var(--brand-primary);
    border: 1px solid var(--brand-primary);
  }

  .toast-container {
    bottom: calc(var(--mobile-nav-height) + 14px);
    right: 16px;
    left: 16px;
    width: auto;
    max-width: none;
  }
}

@media (max-width: 560px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-banner {
    padding: 20px 18px;
  }

  .hero-title {
    font-size: 1.35rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stat-pill span.pill-label-text {
    display: none;
  }

  .card {
    padding: 18px 16px;
  }

  .setting-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .setting-control {
    width: 100%;
  }

  .setting-control .select-input,
  .setting-control .text-input {
    width: 100%;
  }
}

@media (max-width: 359px) {
  .topbar {
    padding: 0 10px;
    gap: 6px;
  }

  .topbar-right {
    gap: 4px;
  }

  .stat-pill {
    padding: 4px 8px;
    font-size: 0.75rem;
  }

  .icon-btn {
    width: 34px;
    height: 34px;
  }

  .cefr-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .mobile-drawer-grid {
    grid-template-columns: 1fr;
  }

  .mobile-nav-btn {
    font-size: 0.62rem;
  }
}