html {
  height: 100%;
}

body {
  display: flex;
  height: 100%;
  min-width: 100px;
  font-family: Arial, Helvetica, sans-serif;
  container-type: size;
}

.main {
  resize: both;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  row-gap: 1em;
  padding: 0.7em 0.5em 0.7em;
}

.dynamic-display,
.meta-controls,
.tab-content {
  height: auto;
  flex-basis: auto;
}

.dynamic-display {
  position: relative;
  flex: 1.5;
}

.meta-controls {
  position: relative;
  flex: 0;
}

.tab-content {
  flex: 7;
}

.dynamic-display input,
.tab-pane,
.input-panel {
  height: 100%;
}

.input-panel .hstack {
  flex: 1;
}

.input-panel.hstack .btn {
  width: calc(100% / 7);
  height: 100%;
  padding: 0;
  line-height: 1;
}

.btn-light {
  background-color: #f1f3f4;
}
.btn-light.fn {
  background-color: #dadce0;
}

.meta-controls .notification {
  border-radius: 5px;
  padding: 0.15rem 0.5rem;
  position: absolute;
  right: 8px;
  overflow: hidden;
  white-space: nowrap;
  animation: slideInRight;
  animation-duration: 0.3s;
}

input.form-control {
  text-align: right;
  line-height: 50px;
  font-size: 38px;
  resize: none;
  margin-top: -5px;
  padding-top: 30px;
}

#pretext {
  text-align: right;
  display: inline-block;
  position: absolute;
  right: 20px;
}

.nav .nav-link {
  padding: 0.15rem 0.5rem;
}

#history-content,
#help-content {
  background: #f1f1f1;
  padding: 20px;
  border-radius: 10px;
}

.history-item-template {
  display: none;
}

.notice {
  border-radius: 5px;
}

@media (max-width: 250px) {
  .input-panel.hstack .btn:not(.f1, .f2):nth-child(-n + 3),
  .input-panel.hstack .btn:is(.f1, .f2):nth-child(-n + 6) {
    display: none;
  }
  .input-panel.hstack .btn {
    width: calc(100% / 4);
  }
}

/* Tracking font-sizes separately to monitor responsiveness */
.main {
  font-size: 12px;
} /* resets base 16px */
.form-check {
  font-size: 14px;
}
.input-panel.hstack .btn {
  font-size: 14px;
}

@container (max-width: 350px) {
  .main {
    font-size: 10px;
  } /* resets base 16px */
  .form-check {
    font-size: 12px;
  }
  .input-panel.hstack .btn {
    font-size: 12px;
  }
  .nav .nav-link {
    padding: 0.15rem 0.5rem;
  }

  input.form-control {
    text-align: right;
    line-height: 40px;
    font-size: 28px;
    resize: none;
    margin-top: -5px;
    padding-top: 30px;
  }
}