.apex-page-copy {
  max-width: 66rem;
  margin: 0 auto 1.5rem;
}

.apex-page-copy p:last-child {
  margin-bottom: 0;
}

#apex-app {
  --apex-silver: #c0c0c0;
  --apex-light: #fff;
  --apex-mid: #808080;
  --apex-dark: #000;
  --apex-blue: #000080;
  max-width: 68rem;
  margin: 1.5rem auto 2rem;
  color: #000;
  font-family: "MS Sans Serif", Tahoma, Geneva, sans-serif;
  font-size: 15px;
  line-height: 1.2;
}

.apex-window {
  padding: 3px;
  border: 2px solid;
  border-color: var(--apex-light) var(--apex-dark) var(--apex-dark) var(--apex-light);
  background: var(--apex-silver);
  box-shadow: 2px 2px 0 rgb(0 0 0 / 45%);
}

.apex-titlebar {
  display: flex;
  min-height: 36px;
  align-items: center;
  gap: 6px;
  padding: 2px 3px;
  color: #fff;
  background: var(--apex-blue);
}

.apex-titlebar__icon,
.apex-converter__heading img,
.apex-category img {
  flex: 0 0 auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.apex-titlebar h2 {
  flex: 1;
  margin: 0;
  color: inherit;
  font: bold 16px/1 "MS Sans Serif", Tahoma, sans-serif;
}

.apex-titlebar__controls {
  display: flex;
  gap: 2px;
}

.apex-titlebar__controls span {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 2px solid;
  border-color: var(--apex-light) var(--apex-dark) var(--apex-dark) var(--apex-light);
  color: #000;
  background: var(--apex-silver);
  font-weight: bold;
}

.apex-menubar {
  display: flex;
  gap: 1.4rem;
  min-height: 29px;
  align-items: center;
  padding: 2px 9px;
  border-bottom: 1px solid var(--apex-mid);
}

.apex-menu-wrap {
  position: relative;
}

.apex-menubar button,
.apex-menu button {
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: #000;
  background: transparent;
  box-shadow: none;
  font: inherit;
  text-shadow: none;
}

.apex-menubar > span,
.apex-menubar > .apex-menu-wrap > button {
  padding: 4px 2px;
}

.apex-menubar > .apex-menu-wrap > button:focus-visible,
.apex-menubar > .apex-menu-wrap > button[aria-expanded="true"] {
  outline: 1px dotted #000;
  outline-offset: -2px;
}

.apex-menu {
  position: absolute;
  z-index: 5;
  top: 100%;
  left: -5px;
  min-width: 150px;
  padding: 3px;
  border: 2px solid;
  border-color: var(--apex-light) var(--apex-dark) var(--apex-dark) var(--apex-light);
  background: var(--apex-silver);
  box-shadow: 2px 2px 0 rgb(0 0 0 / 35%);
}

.apex-menu button {
  display: block;
  width: 100%;
  padding: 5px 22px;
  text-align: left;
}

.apex-menu button:hover,
.apex-menu button:focus-visible {
  color: #fff;
  background: var(--apex-blue);
  outline: none;
}

.apex-workspace {
  display: grid;
  grid-template-columns: minmax(150px, 210px) 1fr;
  min-height: 450px;
  gap: 10px;
  padding: 10px;
}

.apex-categories {
  display: grid;
  align-content: start;
  padding: 3px;
  border: 2px solid;
  border-color: var(--apex-mid) var(--apex-light) var(--apex-light) var(--apex-mid);
  background: #fff;
}

.apex-category {
  display: flex;
  width: 100%;
  min-height: 41px;
  align-items: center;
  gap: 8px;
  padding: 3px 7px;
  border: 1px solid transparent;
  border-radius: 0;
  color: #000;
  background: transparent;
  box-shadow: none;
  font: inherit;
  text-align: left;
  text-shadow: none;
  cursor: default;
}

.apex-category:hover,
.apex-category:focus-visible {
  border-color: #000;
  outline: 1px dotted #fff;
  outline-offset: -4px;
}

.apex-category.is-selected {
  color: #fff;
  background: var(--apex-blue);
}

.apex-converter {
  min-width: 0;
  padding: 12px;
  border: 2px solid;
  border-color: var(--apex-light) var(--apex-mid) var(--apex-mid) var(--apex-light);
}

.apex-converter__heading {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 2px 0 24px;
}

.apex-converter__heading h3 {
  margin: 0;
  color: #000;
  font: bold 18px/1.2 "MS Sans Serif", Tahoma, sans-serif;
}

.apex-inset {
  padding: clamp(18px, 5vw, 48px) clamp(12px, 5vw, 44px);
  border: 2px solid;
  border-color: var(--apex-mid) var(--apex-light) var(--apex-light) var(--apex-mid);
}

.apex-fields {
  display: grid;
  gap: 14px;
  background: #d6d6d6;
}

.apex-field-row {
  display: grid;
  grid-template-columns: 3.6rem minmax(7rem, 1fr) minmax(9rem, 0.9fr);
  align-items: center;
  gap: 9px;
}

.apex-field-row > label {
  color: #000;
}

.apex-field-row input,
.apex-field-row select {
  min-width: 0;
  height: 34px;
  margin: 0;
  border: 2px solid;
  border-radius: 0;
  border-color: var(--apex-mid) var(--apex-light) var(--apex-light) var(--apex-mid);
  color: #000;
  background: #fff;
  box-shadow: none;
  font: 16px/1.2 "Courier New", monospace;
}

.apex-field-row input {
  padding: 4px 6px;
}

.apex-field-row select {
  padding: 2px 4px;
  font-family: "MS Sans Serif", Tahoma, sans-serif;
}

.apex-field-row input:focus-visible,
.apex-field-row select:focus-visible {
  outline: 2px dotted #000;
  outline-offset: 2px;
}

.apex-equals {
  padding-left: calc(3.6rem + 9px);
  font-size: 24px;
  font-weight: bold;
}

.apex-statusbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px;
  padding-top: 4px;
}

.apex-statusbar span {
  min-height: 25px;
  padding: 4px 7px;
  overflow: hidden;
  border: 1px solid;
  border-color: var(--apex-mid) var(--apex-light) var(--apex-light) var(--apex-mid);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.apex-about {
  width: min(390px, calc(100vw - 32px));
  padding: 3px;
  border: 2px solid;
  border-color: #fff #000 #000 #fff;
  border-radius: 0;
  color: #000;
  background: #c0c0c0;
  box-shadow: 4px 4px 0 rgb(0 0 0 / 45%);
  font-family: "MS Sans Serif", Tahoma, Geneva, sans-serif;
  font-size: 15px;
}

.apex-about::backdrop {
  background: rgb(0 0 0 / 35%);
}

.apex-about__body {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 28px 24px 18px;
}

.apex-about__body > img {
  width: 48px;
  height: 48px;
  image-rendering: pixelated;
}

.apex-about__body p {
  margin: 12px 0 0;
  color: #000;
  line-height: 1.45;
}

.apex-about form {
  margin: 0;
  padding: 0 24px 18px;
  background: #c0c0c0;
  text-align: center;
}

.apex-about form button {
  min-width: 86px;
  padding: 5px 18px;
  border: 2px solid;
  border-color: #fff #000 #000 #fff;
  border-radius: 0;
  color: #000;
  background: #c0c0c0;
  box-shadow: none;
  font: inherit;
  text-shadow: none;
}

.apex-about form button:active {
  border-color: #000 #fff #fff #000;
}

.apex-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  white-space: nowrap;
}

@media (max-width: 720px) {
  .apex-workspace {
    grid-template-columns: 1fr;
  }

  .apex-categories {
    grid-template-columns: repeat(5, minmax(54px, 1fr));
  }

  .apex-category {
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    padding: 4px 2px;
    font-size: 11px;
    text-align: center;
  }

  .apex-converter {
    padding: 8px;
  }

  .apex-field-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .apex-equals {
    padding-left: 0;
    text-align: center;
  }
}

@media (max-width: 430px) {
  #apex-app {
    margin-right: -0.5rem;
    margin-left: -0.5rem;
  }

  .apex-categories {
    grid-template-columns: repeat(2, minmax(80px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  #apex-app *,
  #apex-app *::before,
  #apex-app *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}