/* Modal layer: blocks the workbench but never dims it (IDEA dialogs are separate windows). */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-dialog);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: transparent;
}
.top {
  align-items: flex-start;
  padding-top: 10vh;
}
.dialog {
  display: flex;
  flex-direction: column;
  max-width: 100%;
  max-height: 100%;
  background: var(--bg-dialog, var(--bg-elev));
  color: var(--fg-strong);
  outline: none;
  overflow: hidden;
  animation: rise var(--dur) var(--ease);
}
/* macOS / Windows window: 10px corners, hairline frame, large soft window shadow. */
.window {
  border-radius: var(--radius-dialog);
  border: 1px solid var(--border-dialog, var(--border-popup));
  box-shadow: var(--shadow-dialog);
}
.popup {
  border-radius: var(--radius-popup-large);
  border: 1px solid var(--border-popup);
  box-shadow: var(--shadow-popup);
}

/* Title bar (drag handle). macOS: traffic lights then the title; else title + close. */
.titleBar {
  height: var(--h-dialog-titlebar, 32px);
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 6px 0 14px;
  cursor: default;
  user-select: none;
  touch-action: none;
}
.macTitleBar {
  height: var(--h-dialog-titlebar-mac, 28px);
  padding: 0 12px 0 8px;
  gap: 12px;
}
.popupHeader {
  height: 32px;
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
}
.title {
  flex: 1;
  min-width: 0;
  color: var(--fg-strong);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.macTitleBar .title {
  font-size: var(--fs-ui);
}

/* NSWindow standard buttons: 12px, 8px apart; close red, minimise / zoom disabled (modal). */
.lights {
  flex: none;
  display: inline-flex;
  gap: 8px;
}
.light {
  position: relative;
  width: 12px;
  height: 12px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--traffic-off);
  box-shadow: inset 0 0 0 0.5px var(--traffic-off-border);
  cursor: default;
}
.lightClose {
  background: var(--traffic-close);
  box-shadow: inset 0 0 0 0.5px var(--traffic-close-border);
}
[data-inactive] .lightClose {
  background: var(--traffic-off);
  box-shadow: inset 0 0 0 0.5px var(--traffic-off-border);
}
.lightGlyph {
  --icon-color: var(--traffic-glyph);
  color: var(--traffic-glyph);
  opacity: 0;
}
.lights:hover .lightClose,
.lightClose:focus-visible {
  background: var(--traffic-close);
  box-shadow: inset 0 0 0 0.5px var(--traffic-close-border);
}
.lights:hover .lightGlyph,
.lightClose:focus-visible .lightGlyph {
  opacity: 1;
}
.lightClose:active {
  background: var(--traffic-close-pressed);
}
.lightClose:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 1px;
}

.body {
  flex: 1;
  min-height: 0;
  overflow: auto;
}
.body::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
.body::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border: 2px solid transparent;
  border-radius: 5px;
  background-clip: content-box;
}
.body::-webkit-scrollbar-track,
.body::-webkit-scrollbar-corner {
  background: transparent;
}

/* [?] [footerStart …]            [buttons, platform order]; buttons wrap below a footerStart that does not fit. */
.footer {
  flex: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 12px 16px;
}
.footerStart {
  flex: 1 1 0;
  min-width: fit-content;
  max-width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
}
.buttons {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
/* macOS round help button. */
.help {
  flex: none;
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 50%;
  background: var(--bg-button);
  color: var(--fg-strong);
  box-shadow: inset 0 0 0 1px var(--border-button);
  font-size: var(--fs-ui);
  font-weight: 600;
  line-height: 1;
}
.help:hover {
  background: color-mix(in srgb, var(--bg-button) 94%, var(--fg-strong));
}
.help:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 1px;
}

/* Messages alert (IDEA AlertDialog): 32px icon, bold title, text; draggable anywhere but controls. */
.message {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
  gap: 16px;
  padding: 20px 24px 4px 20px;
  cursor: default;
  touch-action: none;
}
.messageIcon {
  flex: none;
}
.messageShape {
  fill: var(--message-icon-color);
}
.messageGlyph {
  stroke: var(--fg-button-primary);
}
.question,
.info {
  --message-icon-color: var(--info);
}
.warning {
  --message-icon-color: var(--warning);
}
.error {
  --message-icon-color: var(--danger);
}
.messageText {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}
.messageTitle {
  color: var(--fg-strong);
  font-weight: 600;
}
.messageBody {
  color: var(--fg-strong);
  line-height: 1.5;
  overflow-wrap: anywhere;
  white-space: pre-line;
}
.messageExtra {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-top: 8px;
}
.messageFooter {
  padding: 16px 24px 20px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(4px) scale(0.995);
  }
}
@media (prefers-reduced-motion: reduce) {
  .dialog {
    animation: none;
  }
}
@media (forced-colors: active) {
  .dialog {
    border: 1px solid CanvasText;
  }
}