/*
  GetCalcMaster – Mobile RPN stack overlay
  - Keeps the main calculator UI clean on small screens
  - Provides a compact (collapsible) T/Z/Y/X view
*/

.cm-rpn-toggle {
  display: none;
}

@media (max-width: 640px) {
  .cm-rpn-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.5rem;
    line-height: 1;
  }

  /* Turn the RPN panel into a floating overlay */
  .cm-rpn {
    position: fixed;
    right: 12px;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
    width: min(260px, 80vw);
    max-height: 50vh;
    overflow: auto;
    z-index: 60;
  }

  /* Slightly tighter rows for small screens */
  .cm-rpn-row {
    padding: 6px 8px;
  }

  /* Collapsed mode hides the upper stack regs */
  .cm-rpn.cm-rpn-collapsed [data-cm-rpn-row="t"],
  .cm-rpn.cm-rpn-collapsed [data-cm-rpn-row="z"] {
    display: none;
  }

  .cm-rpn.cm-rpn-collapsed {
    width: min(220px, 72vw);
  }

  .cm-rpn.cm-rpn-collapsed #cm-rpn-stack {
    margin-top: 0.5rem;
  }
}

@media (max-width: 420px) {
  .cm-rpn {
    right: 8px;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 8px);
    width: min(240px, 86vw);
  }
}