/* ============ Error dialog（保留型，不自动消失）============ */
/* toast 适合"已成功"这类瞬时正反馈，错误反馈得有完整信息 + 可复制 +
   不自动消失 — 用户来不及看 / 调试也用不上。Linear / GitHub / ChatGPT
   都是这套思路。固定右下角不挡操作，可拖动尺寸由内容驱动。 */
.err-dialog {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: min(440px, calc(100vw - 48px));
  max-height: min(60vh, 480px);
  background: var(--card-bg);
  border: 1px solid #e24b4a;
  border-left-width: 4px;
  border-radius: 10px;
  box-shadow: 0 18px 36px rgba(0,0,0,0.18);
  z-index: 400;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: errIn 220ms cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
@keyframes errIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.err-dialog .err-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border-soft);
}
.err-dialog .err-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: #e24b4a;
}
.err-dialog .err-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 0;
}
.err-dialog .err-close {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.err-dialog .err-close:hover { background: var(--hover); color: var(--text); }
.err-dialog .err-body {
  flex: 1;
  min-height: 0;
  padding: 10px 14px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--text-2);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  background: var(--code-bg, rgba(0,0,0,0.03));
}
.err-dialog .err-actions {
  display: flex;
  gap: 8px;
  padding: 10px 14px 12px;
  border-top: 1px solid var(--border-soft);
}
.err-dialog .err-btn {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
}
.err-dialog .err-btn:hover { background: var(--hover); color: var(--text); }
.err-dialog .err-btn-copy.ok { color: #1d9e75; border-color: #1d9e75; }
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
@keyframes toastOut {
  to { opacity: 0; transform: translate(-50%, -4px); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes popIn {
  0% { opacity: 0; transform: scale(0.94); }
  100% { opacity: 1; transform: scale(1); }
}