.checker-head {
  grid-column: 4 / span 7;
  display: grid;
  gap: 18px;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.checker-stage {
  grid-column: 4 / -1;
}

@media (min-width: 1280px) {
  .checker-stage {
    grid-column: 4 / span 8;
  }
}

.checker-foot {
  grid-column: 4 / span 7;
  margin-top: 18px;
  color: var(--muted);
  font-size: var(--step-small);
}

[data-ui].ck {
  display: grid;
  grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
  font-size: var(--ui);
  line-height: 1.55;
  min-height: 640px;
}

:root:lang(zh-Hant-TW) [data-ui].ck,
:root:lang(ja) [data-ui].ck,
:root:lang(ko) [data-ui].ck {
  line-height: 1.65;
}

[data-ui] .ck-main {
  padding: 20px;
  display: grid;
  gap: 16px;
  align-content: start;
}

[data-ui] .ck-side {
  background: var(--surface-2);
  padding: 12px 0;
  display: grid;
  align-content: start;
}

[data-ui] .ck-lab {
  font-size: var(--ui-s);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

[data-ui] .ck-lab code {
  background: none;
  padding: 0;
  color: var(--muted);
}

[data-ui] textarea,
[data-ui] input[type="text"],
[data-ui] input[type="number"],
[data-ui] select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--control-line);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: var(--ui);
  line-height: 1.6;
  color: var(--ink);
}

[data-ui] textarea {
  resize: vertical;
  min-height: 104px;
  display: block;
}

[data-ui] textarea:focus-visible,
[data-ui] input:focus-visible,
[data-ui] select:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}

[data-ui] .ck-poll {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

[data-ui] .ck-poll label {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  font-size: var(--ui-s);
  color: var(--muted);
  min-width: 0;
}

[data-ui] :is(input, textarea) {
  min-width: 0;
}

[data-ui] .ck-poll label code {
  background: none;
  padding: 0;
  color: inherit;
}

[data-ui] .ck-meters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

[data-ui] .meter {
  background: var(--bg);
  border-radius: 6px;
  padding: 10px 12px;
  display: grid;
  gap: 8px;
}

[data-ui] .meter p {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: var(--ui-s);
  color: var(--muted);
}

[data-ui] .meter b {
  font-size: var(--step-lead);
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

[data-ui] .meter.over b {
  color: var(--bad);
}

[data-ui] .meter .bar {
  height: 4px;
  border-radius: 2px;
  background: var(--surface-2);
  overflow: hidden;
}

[data-ui] .meter .bar i {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--ink);
  transform-origin: left;
  transform: scaleX(var(--p, 0));
  transition: transform 360ms var(--ease-out);
}

[data-ui] .meter.over .bar i {
  background: var(--bad);
}

[data-ui] .ck-out {
  display: grid;
  gap: 10px;
}

[data-ui] .ck-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

[data-ui] .ck-status .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
}

[data-ui] .ck-status.is-bad .dot {
  background: var(--bad);
}

[data-ui] .ck-status.is-warn .dot {
  box-shadow: inset 0 0 0 2.5px var(--warn);
}

[data-ui] .ck-status.is-ok .dot {
  background: var(--ok);
}

[data-ui] .ck-list {
  display: grid;
  gap: 6px;
}

[data-ui] .ck-list li {
  background: var(--bg);
  border-radius: 6px;
  padding: 10px 12px 10px 30px;
  position: relative;
  display: grid;
  gap: 4px;
  animation: ck-in 320ms var(--ease-out);
}

[data-ui] .ck-list li::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 1.05em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

[data-ui] .ck-list li.bad::before {
  background: var(--bad);
}

[data-ui] .ck-list li.warn::before {
  box-shadow: inset 0 0 0 2px var(--warn);
}

[data-ui] .ck-list li code {
  background: none;
  padding: 0;
  color: var(--muted);
  font-size: var(--ui-s);
}

@keyframes ck-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
}

[data-ui] .ck-pay pre {
  background: var(--code-bg);
  border-radius: 6px;
  padding: 12px 14px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.7;
  max-height: 220px;
  overflow-y: auto;
}

[data-ui] .ck-pay .note {
  color: var(--muted);
  font-size: var(--ui-s);
  margin-top: 6px;
}

[data-ui] .ctl {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 6px 18px;
}

[data-ui] .ctl+.ctl {
  border-top: 1px solid color-mix(in srgb, var(--rule) 70%, transparent);
}

[data-ui] .ctl label {
  display: grid;
  line-height: 1.35;
  cursor: pointer;
}

[data-ui] .ctl label code {
  background: none;
  padding: 0;
  color: var(--muted);
  font-size: var(--ui-s);
}

[data-ui] .ctl select {
  width: auto;
  padding: 6px 30px 6px 10px;
  font-size: var(--ui-s);
  font-family: var(--font-mono);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%235f6763' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

[data-ui] .ctl input[type="text"],
[data-ui] .ctl input[type="number"] {
  width: 112px;
  padding: 6px 10px;
  font-size: var(--ui-s);
}

[data-ui] .ctl input[type="number"] {
  width: 72px;
  font-variant-numeric: tabular-nums;
}

[data-ui] input[role="switch"] {
  appearance: none;
  width: 38px;
  height: 22px;
  border-radius: 11px;
  background: var(--bg);
  box-shadow: inset 0 0 0 1.5px var(--control-line);
  position: relative;
  cursor: pointer;
  flex: none;
  margin: 0;
  transition: background-color var(--t-hover) ease, box-shadow var(--t-hover) ease;
}

[data-ui] input[role="switch"]::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform var(--t-ui) var(--ease-out), background-color var(--t-hover) ease;
}

[data-ui] input[role="switch"]:checked {
  background: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--ink);
}

[data-ui] input[role="switch"]:checked::after {
  transform: translateX(16px);
  background: var(--bg);
}

[data-ui] input[role="switch"]:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

[data-ui] .ctl.is-off {
  opacity: 0.45;
}

[data-ui] .ck-more {
  display: none;
}

[data-ui] .ck-link {
  font-size: var(--ui-s);
  font-weight: 600;
  padding: 14px 18px 4px;
}

@media (max-width: 1023px) {

  .checker-head,
  .checker-stage,
  .checker-foot {
    grid-column: 1 / -1;
  }
}

@media (forced-colors: active) {
  [data-ui] input[role="switch"] {
    forced-color-adjust: none;
    background: Canvas;
    box-shadow: inset 0 0 0 1.5px CanvasText;
  }

  [data-ui] input[role="switch"]::after {
    background: CanvasText;
  }

  [data-ui] input[role="switch"]:checked {
    background: Highlight;
    box-shadow: inset 0 0 0 1.5px Highlight;
  }

  [data-ui] input[role="switch"]:checked::after {
    background: HighlightText;
  }

  [data-ui] .meter .bar {
    forced-color-adjust: none;
    background: Canvas;
    box-shadow: inset 0 0 0 1px CanvasText;
  }

  [data-ui] .meter .bar i {
    background: CanvasText;
  }

  [data-ui] .ck-list li::before,
  [data-ui] .ck-status .dot {
    forced-color-adjust: none;
    background: CanvasText;
  }

  [data-ui] .ck-list li.warn::before,
  [data-ui] .ck-status.is-warn .dot {
    background: none;
    box-shadow: inset 0 0 0 2px CanvasText;
  }
}

@media (max-width: 860px) {
  [data-ui].ck {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }

  [data-ui] .ck-side {
    padding-top: 6px;
  }

  [data-ui] .ctl.more {
    display: none;
  }

  [data-ui] .ck-side.show-more .ctl.more {
    display: grid;
  }

  [data-ui] .ck-more {
    display: block;
    border: 0;
    background: none;
    text-align: left;
    padding: 12px 18px;
    font-size: var(--ui-s);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 0.24em;
    text-decoration-thickness: 0.07em;
    min-height: 44px;
  }
}