@media (max-width: 1200px) {
  .grid-4,
  .grid-6 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 960px) {
  .app-shell,
  .app-shell.sidebar-hidden {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 70;
    width: min(86vw, 326px);
    height: 100dvh;
    transform: translateX(-104%);
    visibility: hidden;
    box-shadow: 24px 0 80px rgba(2, 6, 23, 0.38);
  }

  .app-shell.sidebar-hidden .sidebar {
    transform: translateX(-104%);
    visibility: hidden;
  }

  .app-shell.sidebar-mobile-open .sidebar {
    transform: translateX(0);
    visibility: visible;
  }

  .app-shell.sidebar-mobile-open .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 60;
    background: rgba(2, 6, 23, 0.5);
    border: 0;
    backdrop-filter: blur(3px);
  }

  .sidebar-nav {
    height: calc(100dvh - 154px);
    max-height: none;
  }

  .sidebar-footer {
    position: absolute;
  }

  .top-header {
    padding: 13px 16px;
    gap: 12px;
  }

  .page-title {
    max-width: 46vw;
    font-size: 20px;
    line-height: 1.14;
  }

  .content {
    padding: 20px;
  }

  .chart-shell {
    min-height: 250px;
  }

  .chart-canvas {
    height: 250px;
  }
}

@media (max-width: 760px) {
  .top-header {
    align-items: center;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 8px;
  }

  .header-left {
    flex: 1 1 auto;
    gap: 8px;
    min-width: 0;
  }

  .header-actions {
    flex: 0 0 auto;
    gap: 6px;
    justify-content: flex-end;
  }

  .hamburger,
  .user-button,
  .message-button {
    min-width: 40px;
    min-height: 40px;
    height: 40px;
  }

  .hamburger {
    width: 40px;
  }

  .user-button {
    gap: 0;
    width: 40px;
    padding: 4px;
  }

  .user-name {
    display: none;
  }

  .avatar-img {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
  }

  .user-button .icon {
    display: none;
  }

  .user-menu {
    right: 0;
    min-width: 236px;
  }

  .user-menu-name {
    display: block;
  }

  .theme-option {
    width: 30px;
    min-height: 30px;
  }

  .refresh-chip {
    width: 30px;
    min-height: 30px;
    padding: 0;
    justify-content: center;
  }

  .refresh-chip [data-refresh-countdown] {
    display: none;
  }

  .page-kicker {
    display: none;
  }

  .page-title {
    max-width: none;
    font-size: clamp(15px, 4.6vw, 18px);
  }

  .content {
    padding: 16px;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .grid-6,
  .form-grid,
  .login-preview {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    grid-template-columns: 1fr;
  }

  .section {
    margin-bottom: 18px;
  }

  .section-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .section-title {
    font-size: 16px;
  }

  .section-note,
  .help,
  .alert {
    font-size: 12px;
  }

  .kpi-value {
    font-size: 30px;
  }

  .kpi-icon {
    width: 38px;
    height: 38px;
  }

  .card-pad {
    padding: 16px;
  }

  .table-toolbar {
    grid-template-columns: 1fr;
  }

  .table-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .pagination {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .search-box input {
    width: 100%;
  }

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

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

  .table-wrap {
    overflow-x: auto;
  }

  table {
    min-width: 1120px;
  }

  .login-shell {
    grid-template-columns: 1fr;
    background: #f9fafb;
  }

  .login-visual {
    display: none;
  }

  .login-auth-panel {
    height: 100vh;
    height: 100dvh;
    padding: 22px;
  }

  .login-card-brand {
    display: flex;
  }

  .login-options {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .top-header {
    padding: 10px 10px;
  }

  .header-actions {
    gap: 5px;
  }

  .hamburger,
  .user-button,
  .message-button {
    min-width: 36px;
    width: 36px;
    height: 36px;
    min-height: 36px;
  }

  .theme-option,
  .refresh-chip {
    width: 28px;
    min-height: 28px;
  }

  .avatar-img {
    width: 28px;
    height: 28px;
    flex-basis: 28px;
  }

  .content {
    padding: 12px;
  }

  .sidebar {
    width: min(90vw, 318px);
  }

  .brand-title {
    font-size: 13px;
  }

  .brand-logo {
    width: 42px;
    height: 42px;
  }

  .brand-block {
    min-height: 74px;
    padding: 12px;
  }

  .sidebar-nav {
    height: calc(100dvh - 140px);
  }

  .login-auth-panel,
  .login-visual {
    padding: 18px;
  }

  .login-card {
    width: 100%;
    padding: 18px;
    border-radius: 10px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
  }

  .login-card h2 {
    font-size: 23px;
  }

  .login-card > p {
    margin-bottom: 14px;
    font-size: 13px;
  }

  .login-footnote {
    margin-top: 12px;
    padding-top: 12px;
    font-size: 11px;
  }
}

@media (max-height: 680px) {
  .login-card {
    padding: 18px;
  }

  .login-card-brand {
    margin-bottom: 12px;
    padding-bottom: 12px;
  }

  .login-card-logo {
    width: 38px;
    height: 38px;
  }

  .login-card > p {
    margin-bottom: 12px;
    font-size: 13px;
  }

  .login-form {
    gap: 10px;
  }

  .control,
  .form-control {
    min-height: 38px;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .login-submit {
    min-height: 42px;
  }

  .login-footnote {
    margin-top: 10px;
    padding-top: 10px;
    line-height: 1.4;
  }
}