.version-badge {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted-strong);
  background: var(--surface-subtle);
  font: 650 11px/1.3 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  white-space: nowrap;
}

.version-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #97a1ac;
}

.version-badge[data-runtime-ready="true"]::before {
  background: var(--primary);
  box-shadow: 0 0 0 3px rgba(24, 121, 78, 0.12);
}

.preview-toggle {
  width: 100%;
  min-height: 42px;
  justify-content: space-between;
  padding: 10px 2px;
  border: 0;
  border-radius: 0;
  color: var(--muted-strong);
  background: transparent;
  font-size: 13px;
  font-weight: 650;
}

.preview-toggle:not(:disabled):hover {
  color: var(--text);
  background: transparent;
}

.preview-toggle::after {
  content: "";
  width: 7px;
  height: 7px;
  margin: -4px 4px 0 12px;
  flex: 0 0 auto;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 180ms ease, margin 180ms ease;
}

.preview-toggle[aria-expanded="true"]::after,
.preview-toggle[data-expanded="true"]::after {
  margin-top: 4px;
  transform: rotate(225deg);
}

.update-notice[data-state="waiting"] {
  color: var(--muted-strong);
  background: var(--surface-subtle);
  border-color: var(--line);
}

.update-notice[data-state="new"] {
  color: var(--info);
  background: var(--info-soft);
  border-color: #c8dbef;
}

.update-notice[data-state="updated"] {
  color: var(--warning);
  background: var(--warning-soft);
  border-color: #efd2ac;
}

.update-notice[data-state="copied"] {
  color: var(--primary);
  background: var(--primary-soft);
  border-color: #c9dfd2;
}

#copyBtn {
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, opacity 180ms ease, box-shadow 180ms ease;
}

#copyBtn[data-copy-state="new"],
#copyBtn.copy-state-new {
  color: #ffffff;
  background: var(--info);
  border-color: var(--info);
  box-shadow: 0 8px 20px rgba(36, 99, 166, 0.16);
}

#copyBtn[data-copy-state="new"]:hover:not(:disabled),
#copyBtn.copy-state-new:hover:not(:disabled) {
  background: #1d5189;
  border-color: #1d5189;
}

#copyBtn[data-copy-state="valid"],
#copyBtn.copy-state-valid {
  color: #ffffff;
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 8px 20px rgba(24, 121, 78, 0.16);
}

#copyBtn[data-copy-state="valid"]:hover:not(:disabled),
#copyBtn.copy-state-valid:hover:not(:disabled) {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

#copyBtn[data-copy-state="updated"],
#copyBtn.copy-state-updated {
  color: #ffffff;
  background: var(--warning);
  border-color: var(--warning);
  box-shadow: 0 8px 20px rgba(169, 91, 16, 0.16);
  animation: copy-state-pulse 600ms ease-out;
}

#copyBtn[data-copy-state="updated"]:hover:not(:disabled),
#copyBtn.copy-state-updated:hover:not(:disabled) {
  background: #87460c;
  border-color: #87460c;
}

#copyBtn[data-copy-state="empty"],
#copyBtn.copy-state-empty {
  color: var(--muted);
  background: var(--surface-strong);
  border-color: var(--line);
  box-shadow: none;
}

@keyframes copy-state-pulse {
  0% { box-shadow: 0 0 0 0 rgba(169, 91, 16, 0.28); }
  100% { box-shadow: 0 0 0 9px rgba(169, 91, 16, 0); }
}

@media (prefers-reduced-motion: reduce) {
  #copyBtn[data-copy-state="updated"],
  #copyBtn.copy-state-updated {
    animation: none;
  }
}