/* 短促的操作反馈，不改变画布节点的位置或生成任务的行为。 */
button, button[class], .button, summary, .simple-header nav a, .admin-sidebar a {
  transition: background-color 150ms ease, border-color 150ms ease,
    color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}
:where(button, .button):not(:disabled):not([aria-disabled="true"]):active {
  transform: translateY(1px) scale(.98);
  transition-duration: 80ms;
}
:where(.simple-header nav a, .admin-sidebar a, summary):active {
  opacity: .76;
}
.simple-header nav a { position: relative; }
.simple-header nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform 150ms ease;
}
.simple-header nav a.active::after { transform: scaleX(1); }
.project-card, .template-card, .asset-card, .account-links > a {
  transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  .button.primary:hover:not(:disabled) { box-shadow: 0 4px 12px rgb(87 70 199 / 18%); }
  .model-choice:hover:not(:disabled), .canvas-scenes button:hover:not(:disabled) { border-color: var(--accent); }
  .project-card:hover, .template-card:hover, .asset-card:hover, .account-links > a:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    box-shadow: 0 6px 18px rgb(36 39 67 / 8%);
  }
}
/* 尊重系统偏好；加载中的旋转标识仍保留，避免误认为操作无响应。 */
@media (prefers-reduced-motion: reduce) {
  :where(button, .button, summary, .simple-header nav a, .admin-sidebar a),
  .simple-header nav a::after, .project-card, .template-card, .asset-card, .account-links > a {
    transition: none !important;
  }
  :where(button, .button):not(:disabled):not([aria-disabled="true"]):active,
  .project-card:hover, .template-card:hover, .asset-card:hover, .account-links > a:hover {
    transform: none;
  }
}