@media (max-width: 820px) {
  html {
    zoom: 1 !important;
    width: 100%;
    max-width: 100%;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  body {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
    overflow-x: hidden;
    overflow-x: clip;
  }

  .container {
    box-sizing: border-box;
    width: 100%;
    max-width: none;
    margin: 0;
    padding:
      max(12px, env(safe-area-inset-top))
      max(12px, env(safe-area-inset-right))
      max(16px, env(safe-area-inset-bottom))
      max(12px, env(safe-area-inset-left));
  }

  .stats-container {
    width: 100%;
    min-width: 0;
    padding: 52px 0 16px;
    border-radius: 0;
  }

  .session-links {
    min-height: 44px;
    margin-bottom: 12px !important;
    gap: 8px !important;
    align-items: center;
  }

  .session-links a {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0 12px !important;
    font-size: 14px !important;
    touch-action: manipulation;
  }

  .logo {
    display: block;
    width: clamp(64px, 22vw, 96px);
    max-width: 100%;
    height: auto;
    margin: 0 auto 12px;
  }

  #stats-content,
  #stats-content.grid-layout,
  #stats-content.grid-cols-2,
  #stats-content.grid-cols-3,
  #stats-content.grid-cols-5,
  #stats-content.grid-cols-7 {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    margin-inline: auto;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-auto-columns: minmax(0, 1fr);
    grid-auto-flow: row;
    justify-content: stretch;
    gap: 8px;
  }

  #stats-content .stats-item {
    grid-column: auto !important;
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 12px 14px;
    border-radius: 10px;
    overflow-wrap: anywhere;
  }

  .user-tag {
    margin-bottom: 6px;
    font-size: clamp(18px, 5.5vw, 22px);
    line-height: 1.25;
    overflow-wrap: anywhere;
  }

  .time-display {
    font-size: 16px;
    line-height: 1.35;
  }

  .warning {
    margin-left: 4px;
  }

  .toggle-container {
    margin-top: 12px;
    padding: 8px 0;
  }

  .toggle-btn {
    width: min(100%, 352px);
    min-height: 44px;
    padding: 12px 16px;
    font-size: 15px;
    line-height: 1.25;
    white-space: normal;
    touch-action: manipulation;
  }

  .control-panel {
    top: calc(8px + env(safe-area-inset-top, 0px));
    left: calc(8px + env(safe-area-inset-left, 0px));
    right: auto;
    flex-flow: row nowrap;
    max-width: calc(100vw - 16px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .control-panel::-webkit-scrollbar {
    display: none;
  }

  .control-icon,
  .icon-small {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    font-size: 18px;
    touch-action: manipulation;
  }

  .control-icons-group {
    flex: 0 0 auto;
    flex-flow: row nowrap;
    gap: 8px;
    margin-left: 0;
  }

  .user-controls {
    position: static;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 10px;
    transform: none;
  }

  .user-control-icon {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    touch-action: manipulation;
  }

  .control-icon:hover,
  .user-control-icon:hover {
    transform: none;
  }

  .session-links a,
  .toggle-btn,
  .control-icon,
  .user-control-icon {
    -webkit-tap-highlight-color: transparent;
  }

  .session-links a:focus-visible,
  .toggle-btn:focus-visible,
  .control-icon:focus-visible,
  .user-control-icon:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
  }
}