html {
  color-scheme: light dark;
  --border-radius: 10px;
  --top-margin: 4px;
  --column-gap: 2px;
  --border-color: #666;
  --white-bg-color: #F2F3F4;
  --bg-color: #222222;
  --checked-color: #3584E4;
  --indicator-width: 14px;
  line-height: 1.5;

  font-family: 'Roboto', sans-serif;
}

h1 {
  font-size: large;
  margin: 0;
}

#dialog {
  border-width: 4px;
}

.center {
  margin: 0.5em auto;
  text-align: center;
}

.checkbox:disabled {
  display: none;
}

.checked:has(.checkbox:disabled) .indicator {
  width: var(--indicator-width);
}

.background {
  background-color: var(--bg-color);
  z-index: -2;
  border-radius: var(--border-radius);
}

.checkbox-label {
  background-color: var(--white-bg-color);
  height: 1.7em;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.checked .indicator {
  background-color: var(--checked-color);
}

:not(.checked) + .checked .indicator {
  top: 8px;
  border-top-left-radius: calc(var(--indicator-width)/2);
  border-top-right-radius: calc(var(--indicator-width)/2);
}

.checked:not(:has(+ .checked)) .indicator {
  bottom: 8px;
  border-bottom-left-radius: calc(var(--indicator-width)/2);
  border-bottom-right-radius: calc(var(--indicator-width)/2);
}

.indicator {
  position: absolute;
  width: 5px;
  z-index: 1;
  top: 0;
  bottom: 0;
}

.checkbox-border {
  border-bottom: solid 1.5px var(--border-color);
  pointer-events: none;
  z-index: 2;
}

.checkbox {
  z-index: 2;
  margin: 0;
}

.header {
  white-space: pre-wrap;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  margin: var(--top-margin) var(--column-gap) 0 var(--column-gap);
  font-weight: 500;
}

@media (prefers-color-scheme: dark) {
  .header {
    font-weight: 700;
  }
}

.name-last {
  margin: 0 var(--column-gap) 0 0;
}

.name-first {
  margin: 0 0 0 var(--column-gap);
}

.first-col.header {
  margin-left: calc(2*var(--column-gap));
}
.last-col.header {
  margin-right: calc(2*var(--column-gap));
}
.first-col.name-first {
  margin-left: calc(2*var(--column-gap));
}
.last-col.name-last {
  margin-right: calc(2*var(--column-gap));
}

.last-row.name-first {
  border-radius: 0 0 0 var(--border-radius);
}
.last-row.name-last {
  border-radius: 0 0 var(--border-radius) 0;
}

.bottom-spacer {
  height: var(--top-margin);
}

.parent {
  display: grid;
  grid-template-columns: 3em auto;
}

.child {
  text-align: center;
}

.time {
  user-select: none;
  transform: rotate(-20deg) translate(-5px, 8px);
  border: none;
  border-bottom: solid 1.5px var(--border-color);
  font-variant-numeric: tabular-nums;
  padding-left: .3em;
  display: flex;
}

.time span {
  align-self: flex-end;
}

.name-span {
  writing-mode: sideways-lr;
  transform: rotate(20deg);
  text-align: left;
  display: inline-block;
}