.presentation-touch-navigation { display: none; }

@media screen and (any-pointer: coarse) {
  .deck {
    padding: env(safe-area-inset-top, 0px) env(safe-area-inset-right, 0px)
      calc(64px + env(safe-area-inset-bottom, 0px)) env(safe-area-inset-left, 0px);
  }

  .presentation-touch-navigation {
    position: fixed;
    z-index: 30;
    bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
  }

  .presentation-touch-navigation button {
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--border-hairline);
    border-radius: 0;
    background: var(--surface-page);
    color: var(--text-primary);
    font: 22px/1 var(--font-body);
    cursor: pointer;
  }

  .presentation-touch-navigation button:disabled { opacity: 0.4; cursor: default; }
  .presentation-touch-navigation button:focus-visible {
    outline: 2px solid var(--blue-600);
    outline-offset: -2px;
  }

  .presentation-outline,
  .presentation-fullscreen {
    bottom: env(safe-area-inset-bottom, 0px);
    opacity: 1 !important;
  }

  .presentation-outline { left: env(safe-area-inset-left, 0px); }
  .presentation-fullscreen { right: env(safe-area-inset-right, 0px); }
  .deck-fullscreen-toggle,
  .presentation-outline .deck-outline-trigger { min-height: 44px; }
  .deck-fullscreen-toggle {
    max-width: calc(50vw - 68px - env(safe-area-inset-right, 0px));
    white-space: normal;
  }

  .deck-outline-panel,
  .deck-fullscreen-message {
    max-width: calc(100vw - 20px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
    max-height: calc(100dvh - 84px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
  }
}

@media screen and (any-pointer: coarse) and (max-width: 380px) {
  .deck-outline-trigger span { display: none; }
  .presentation-outline .deck-outline-trigger { width: 44px; justify-content: center; }
}