/* Trustworthy version history — immutable design revision 120. */
.ide-container .version-selector {
  display: flex;
  flex: 0 0 auto;
}
.ide-container .version-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  white-space: nowrap;
}
.ide-container .version-btn:hover,
.ide-container .version-btn.active,
.ide-container .version-btn[aria-expanded="true"] {
  border-color: var(--workspace-blue-200);
  background: var(--workspace-blue-50);
  color: var(--workspace-blue-700);
}
.ide-container .version-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}
.ide-container .version-history-surface {
  position: fixed;
  z-index: 410;
  inset: 0;
  pointer-events: none;
}
.ide-container .version-history-scrim {
  position: fixed;
  z-index: 0;
  inset: 0;
  pointer-events: auto;
}
.ide-container .version-history-scrim::before {
  position: fixed;
  top: 62px;
  bottom: 0;
  left: var(--version-history-editor-left, 232px);
  width: var(--version-history-editor-width, calc(100vw - 646px));
  background: rgba(23, 32, 42, 0.16);
  backdrop-filter: blur(1px);
  content: "";
}
.ide-container .version-history-dialog {
  position: fixed;
  z-index: 1;
  top: 54px;
  left: var(--version-history-left, calc(100vw - 718px));
  display: flex;
  width: var(--version-history-width, 374px);
  max-height: min(690px, calc(100dvh - 70px));
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--workspace-ink-200);
  border-radius: 14px;
  background: var(--workspace-paper);
  box-shadow: var(--workspace-shadow-lg);
  pointer-events: auto;
}
.ide-container .version-history-header {
  display: flex;
  flex: 0 0 auto;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--workspace-ink-150);
  padding: 17px 18px 14px;
}
.ide-container .version-history-header h2 {
  margin: 0;
  color: var(--workspace-ink-950);
  font-size: 16px;
  line-height: 1.25;
  letter-spacing: -0.015em;
}
.ide-container .version-history-header p {
  max-width: 270px;
  margin: 4px 0 0;
  color: var(--workspace-ink-600);
  font-size: 10.5px;
  line-height: 1.45;
}
.ide-container .version-history-close {
  display: grid;
  width: 34px;
  min-width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--workspace-ink-200);
  border-radius: var(--workspace-radius-sm);
  padding: 0;
  background: #fff;
  color: var(--workspace-ink-600);
  cursor: pointer;
  font-size: 17px;
}
.ide-container .version-history-content {
  display: flex;
  min-height: 0;
  flex: 1 1 auto;
  flex-direction: column;
}
.ide-container .version-history-current {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--workspace-ink-150);
  padding: 11px 18px;
  background: var(--workspace-blue-50);
}
.ide-container .version-history-current-icon {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  border-radius: 8px;
  background: #fff;
  color: var(--workspace-blue-700);
}
.ide-container .version-history-current strong,
.ide-container .version-history-current small {
  display: block;
}
.ide-container .version-history-current strong {
  color: var(--workspace-ink-900);
  font-size: 11.5px;
}
.ide-container .version-history-current small {
  margin-top: 1px;
  color: var(--workspace-ink-600);
  font-size: 9.5px;
}
.ide-container .version-history-current-chip {
  margin-left: auto;
  border-radius: 999px;
  padding: 3px 7px;
  background: #fff;
  color: var(--workspace-blue-700);
  font-size: 9px;
  font-weight: 760;
  text-transform: uppercase;
}
.ide-container .version-history-scroll {
  min-height: 0;
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 12px 12px 10px;
}
.ide-container .version-history-date {
  margin: 2px 8px 7px;
  color: var(--workspace-ink-500);
  font-size: 9px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ide-container .version-history-date:not(:first-child) {
  margin-top: 13px;
}
.ide-container .version-history-row {
  position: relative;
  display: grid;
  min-width: 0;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 11px;
  padding: 10px 9px;
}
.ide-container .version-history-row + .version-history-row {
  margin-top: 2px;
}
.ide-container .version-history-row::after {
  position: absolute;
  top: 42px;
  bottom: -8px;
  left: 25px;
  width: 1px;
  background: var(--workspace-ink-200);
  content: "";
}
.ide-container .version-history-row.is-last::after {
  display: none;
}
.ide-container .version-history-row:hover,
.ide-container .version-history-row:focus-within,
.ide-container .version-history-row.is-latest {
  border-color: var(--workspace-blue-200);
  background: #f7fbff;
}
.ide-container .version-history-dot {
  position: relative;
  z-index: 1;
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  margin: 1px 0 0 3px;
  border: 1px solid var(--workspace-ink-200);
  border-radius: 50%;
  background: #fff;
  color: var(--workspace-ink-700);
  font-size: 9px;
  font-weight: 760;
}
.ide-container .version-history-dot.ai {
  border-color: var(--workspace-blue-200);
  background: var(--workspace-blue-50);
  color: var(--workspace-blue-700);
}
.ide-container .version-history-copy {
  min-width: 0;
}
.ide-container .version-history-row-top {
  display: flex;
  align-items: center;
  gap: 6px;
}
.ide-container .version-history-row-top time {
  color: var(--workspace-ink-900);
  font-size: 11.5px;
  font-weight: 700;
}
.ide-container .version-history-author {
  border-radius: 999px;
  padding: 2px 6px;
  background: var(--workspace-ink-100);
  color: var(--workspace-ink-600);
  font-size: 8.5px;
  font-weight: 760;
  text-transform: uppercase;
}
.ide-container .version-history-author.ai {
  background: var(--workspace-blue-100);
  color: var(--workspace-blue-700);
}
.ide-container .version-history-copy p {
  display: -webkit-box;
  overflow: hidden;
  margin: 4px 0 0;
  color: var(--workspace-ink-700);
  font-size: 10.5px;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.ide-container .version-history-preview,
.ide-container .version-history-primary,
.ide-container .version-history-secondary {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--workspace-blue-600);
  border-radius: var(--workspace-radius-sm);
  padding: 8px 13px;
  background: var(--workspace-blue-600);
  color: #fff;
  cursor: pointer;
  font-size: 11px;
  font-weight: 680;
  line-height: 1.2;
  text-decoration: none;
}
.ide-container .version-history-preview,
.ide-container .version-history-secondary {
  border-color: var(--workspace-ink-200);
  background: #fff;
  box-shadow: var(--workspace-shadow-sm);
  color: var(--workspace-blue-700);
}
.ide-container .version-history-preview {
  min-height: 34px;
  align-self: center;
  padding: 6px 8px;
  font-size: 10px;
}
.ide-container .version-history-footer {
  display: flex;
  min-height: 36px;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  border-top: 1px solid var(--workspace-ink-150);
  padding: 10px 16px;
  background: #fcfefd;
  color: var(--workspace-green-700);
  font-size: 9.5px;
}
.ide-container .version-history-state {
  display: grid;
  min-height: 290px;
  flex: 1 1 auto;
  place-items: center;
  padding: 26px 22px;
  text-align: center;
}
.ide-container .version-history-state > div {
  max-width: 270px;
}
.ide-container .version-history-state-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin: 0 auto 13px;
  border-radius: 13px;
  background: var(--workspace-ink-100);
  color: var(--workspace-ink-600);
  font-size: 22px;
}
.ide-container .version-history-state-mark.error {
  background: #fef2f2;
  color: #b4232f;
}
.ide-container .version-history-state h3 {
  margin: 0 0 5px;
  color: var(--workspace-ink-900);
  font-size: 14px;
}
.ide-container .version-history-state p {
  margin: 0 0 15px;
  color: var(--workspace-ink-600);
  font-size: 11px;
  line-height: 1.5;
}
.ide-container .version-history-loading {
  flex: 1 1 auto;
  padding: 15px 18px 24px;
}
.ide-container .version-history-skeleton {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 48px;
  gap: 10px;
  padding: 11px 0;
}
.ide-container .version-history-skeleton span {
  height: 29px;
  border-radius: 7px;
  background: linear-gradient(90deg, var(--workspace-ink-100), #edf5fc, var(--workspace-ink-100));
  background-size: 220% 100%;
}
.ide-container .version-history-skeleton span:first-child {
  width: 26px;
  height: 26px;
  border-radius: 50%;
}
.ide-container .version-history-skeleton span:last-child {
  width: 48px;
  height: 30px;
  border-radius: 8px;
}
@media (max-width: 1100px) and (min-width: 769px) {
  .ide-container.version-history-open .ide-sidebar {
    display: flex;
    width: 220px !important;
    min-width: 220px;
    max-width: 220px;
    flex-basis: 220px;
  }
  .ide-container.version-history-open :is(.chat-sidebar, .chat-resize-handle) {
    display: none;
  }
}
@media (max-width: 768px) {
  .ide-container .version-history-surface {
    top: 56px;
  }
  .ide-container .version-history-scrim {
    display: none;
  }
  .ide-container .version-history-dialog {
    top: 56px;
    right: 0;
    bottom: 0;
    left: 0;
    width: auto;
    max-height: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .ide-container .version-history-header {
    padding: 15px 14px 13px;
  }
  .ide-container .version-history-header h2 {
    font-size: 17px;
  }
  .ide-container .version-history-header p {
    max-width: 250px;
  }
  .ide-container .version-history-close {
    width: 44px;
    min-width: 44px;
    height: 44px;
  }
  .ide-container .version-history-current {
    padding: 10px 14px;
  }
  .ide-container .version-history-scroll {
    padding: 10px 8px 12px;
  }
  .ide-container .version-history-row {
    min-height: 62px;
    grid-template-columns: 34px minmax(0, 1fr) 62px;
    padding: 9px 7px;
  }
  .ide-container .version-history-preview {
    min-width: 58px;
    min-height: 44px;
  }
  .ide-container .version-history-primary,
  .ide-container .version-history-secondary {
    min-height: 44px;
  }
  .ide-container .version-history-footer {
    min-height: 44px;
    padding: 9px 14px max(9px, env(safe-area-inset-bottom));
  }
  .ide-container .version-history-state {
    min-height: 0;
  }
}
@media (max-width: 420px) {
  .ide-container .version-history-header p {
    max-width: 235px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ide-container .version-history-surface * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}