/* ============================================
 * 动态表单渲染引擎样式 FormRenderer
 * 用于 form/render.htm + form-renderer.js
 * 依赖 style.css 的设计变量（--c-* / --sp-* / --fs-* / --r-* / --sh-*）
 * ============================================ */

/* ==================== 容器 ==================== */
.form-renderer { width: 100%; }
.form-renderer__desc {
  margin: 0 0 var(--sp-lg);
  color: var(--c-muted);
  font-size: var(--fs-body);
  line-height: 1.6;
}

/* ==================== 栅格行 ==================== */
.form-row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--sp-md);
  margin-bottom: var(--sp-md);
}
.form-row--section { margin-bottom: 0; }
.form-col { min-width: 0; }

@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; }
  .form-col { grid-column: span 1 !important; }
}

/* ==================== 字段 ==================== */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-field__label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-ink);
  display: flex;
  align-items: center;
  gap: 4px;
}
.form-field__required {
  color: var(--c-danger);
  font-weight: 700;
  margin-left: 2px;
}
.form-field__control { position: relative; }
.form-field__hint {
  font-size: var(--fs-xs);
  color: var(--c-muted);
  line-height: 1.5;
}
.form-field__error {
  font-size: var(--fs-xs);
  color: var(--c-danger);
  display: none;
  align-items: center;
  gap: 4px;
}
.form-field__error.is-visible { display: flex; animation: formFadeIn .2s ease; }
.form-field.has-error .form-control {
  border-color: var(--c-danger);
  background: #fef5f5;
}
.form-field.has-error .form-options,
.form-field.has-error .form-upload,
.form-field.has-error .form-rating {
  outline: 1px solid var(--c-danger);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

@keyframes formFadeIn {
  from { opacity: 0; transform: translateY(-2px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== 基础控件 ==================== */
.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-sm);
  font-size: var(--fs-body);
  color: var(--c-ink);
  background: var(--c-card);
  transition: border-color .2s, box-shadow .2s;
  font-family: inherit;
  box-sizing: border-box;
}
.form-control:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, .12);
}
.form-control::placeholder { color: #94a3b8; }
textarea.form-control { resize: vertical; min-height: 90px; line-height: 1.6; }
select.form-control { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

/* ==================== section / divider ==================== */
.form-section__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--c-primary-deep);
  margin: var(--sp-lg) 0 var(--sp-sm);
  padding-bottom: var(--sp-sm);
  border-bottom: 2px solid var(--c-primary-soft);
}
.form-section__title .form-icon { color: var(--c-accent); }
.form-divider {
  border: none;
  border-top: 1px dashed var(--c-line);
  margin: var(--sp-md) 0;
}

/* ==================== 选项组（radio/checkbox） ==================== */
.form-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm) var(--sp-md);
  padding: 8px 0;
}
.form-option {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-body);
  color: var(--c-text);
  cursor: pointer;
  user-select: none;
}
.form-option input { width: 16px; height: 16px; accent-color: var(--c-accent); cursor: pointer; }
.form-option:hover { color: var(--c-primary-deep); }

/* ==================== 开关 ==================== */
.form-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  cursor: pointer;
}
.form-switch input { opacity: 0; width: 0; height: 0; }
.form-switch__slider {
  position: absolute;
  inset: 0;
  background: var(--c-line);
  border-radius: var(--r-pill);
  transition: background .25s;
}
.form-switch__slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform .25s;
  box-shadow: var(--sh-sm);
}
.form-switch input:checked + .form-switch__slider { background: var(--c-success); }
.form-switch input:checked + .form-switch__slider::before { transform: translateX(20px); }
.form-switch__text {
  margin-left: 8px;
  font-size: var(--fs-sm);
  color: var(--c-muted);
}

/* ==================== 评分 ==================== */
.form-rating {
  display: inline-flex;
  gap: 4px;
  padding: 8px 0;
  cursor: pointer;
}
.form-rating__star {
  display: inline-flex;
  width: 26px;
  height: 26px;
  color: var(--c-line);
  transition: color .15s, transform .15s;
  cursor: pointer;
}
.form-rating__star:hover { transform: scale(1.15); }
.form-rating__star.is-active { color: #f59e0b; }
.form-rating__star .form-icon { width: 100%; height: 100%; }

/* ==================== 上传 ==================== */
.form-upload { position: relative; }
.form-upload__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  z-index: -1;
}
.form-upload__label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: var(--sp-lg);
  border: 2px dashed var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-bg-soft);
  color: var(--c-muted);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: border-color .2s, background .2s;
  text-align: center;
}
.form-upload__label:hover {
  border-color: var(--c-accent);
  background: var(--c-primary-soft);
  color: var(--c-primary-deep);
}
.form-upload__label .form-icon { width: 28px; height: 28px; }
.form-upload--image .form-upload__label { padding: var(--sp-md); }
.form-upload__filename {
  margin-top: 8px;
  font-size: var(--fs-xs);
  color: var(--c-muted);
  word-break: break-all;
  display: flex; align-items: center; gap: 8px;
}
.form-upload__ext {
  flex-shrink: 0; padding: 2px 8px; border-radius: 4px;
  background: var(--c-primary-soft, #eef4ff); color: var(--c-primary-deep, #0c4a6e);
  font-size: 11px; font-weight: 700; letter-spacing: .5px;
}
.form-upload__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.form-upload__preview { margin-top: var(--sp-sm); }
.form-upload__thumb {
  position: relative; display: inline-block;
  width: 200px; height: 112px;
  border: 1px solid var(--c-line); border-radius: var(--r-sm);
  overflow: hidden; box-shadow: var(--sh-sm);
  transition: border-color .2s, box-shadow .2s;
}
.form-upload__thumb:hover { border-color: var(--c-accent); box-shadow: 0 0 0 3px var(--c-primary-soft, rgba(0,120,212,.12)); }
.form-upload__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.form-upload__remove {
  position: absolute; top: 4px; right: 4px;
  width: 22px; height: 22px; padding: 0; border: none; cursor: pointer;
  background: rgba(0,0,0,.55); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.form-upload__remove:hover { background: var(--c-danger, #dc2626); }
.form-upload__remove .form-icon { width: 12px; height: 12px; }
/* 上传图片后隐藏占位 label，避免重复（点击缩略图移除按钮即可重传） */
.form-upload--image .form-upload__thumb ~ .form-upload__label,
.form-upload--image:has(.form-upload__thumb) .form-upload__label { display: none; }

/* ==================== 标签输入 ==================== */
.form-tag-input {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 10px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-sm);
  background: var(--c-card);
  cursor: text;
  transition: border-color .2s, box-shadow .2s;
  min-height: 42px;
  align-items: center;
}
.form-tag-input:focus-within {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, .12);
}
.form-tag-input__chips {
  display: contents;
}
.form-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  background: var(--c-primary-soft);
  color: var(--c-primary-deep);
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  font-weight: 500;
}
.form-tag-chip button {
  border: none;
  background: none;
  color: var(--c-muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0;
  display: flex;
}
.form-tag-chip button:hover { color: var(--c-danger); }
.form-tag-input__input {
  flex: 1;
  min-width: 80px;
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--fs-body);
  color: var(--c-ink);
  padding: 2px 0;
}

/* ==================== 富文本 ==================== */
.form-richtext {
  padding: var(--sp-sm);
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-sm);
  background: var(--c-bg-soft);
}
.form-richtext textarea { background: var(--c-card); }

/* ==================== 操作区 ==================== */
.form-actions {
  display: flex;
  gap: var(--sp-sm);
  margin-top: var(--sp-lg);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--c-line);
}
.form-actions .btn {
  padding: 12px 32px;
  border: none;
  border-radius: var(--r-pill);
  font-size: var(--fs-body);
  font-weight: 600;
  cursor: pointer;
  transition: all .28s cubic-bezier(.4, 0, .2, 1);
  font-family: inherit;
}
.form-actions .btn--primary {
  background: var(--c-grad);
  color: #fff;
  box-shadow: 0 8px 20px rgba(12, 74, 110, .28);
}
.form-actions .btn--primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(8, 145, 178, .38);
}
.form-actions .btn--primary:disabled {
  opacity: .6;
  cursor: not-allowed;
}
.form-actions .btn--default {
  background: var(--c-bg-soft);
  color: var(--c-text);
  border: 1.5px solid var(--c-line);
}
.form-actions .btn--default:hover {
  background: var(--c-card);
  border-color: var(--c-accent);
  color: var(--c-primary-deep);
}

/* ==================== 加载/错误状态 ==================== */
.form-dynamic-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: var(--sp-xxl) var(--sp-lg);
  color: var(--c-muted);
  font-size: var(--fs-body);
}
.form-dynamic-loading .form-icon {
  width: 24px;
  height: 24px;
  color: var(--c-accent);
}
.form-dynamic-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: var(--sp-xxl) var(--sp-lg);
  text-align: center;
  color: var(--c-muted);
}
.form-dynamic-error .form-icon {
  width: 48px;
  height: 48px;
  color: var(--c-line);
}

/* 表单图标统一基类 */
.form-icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  vertical-align: middle;
}
.form-icon--lg { width: 48px; height: 48px; }
.form-icon--spin {
  animation: form-icon-spin 1s linear infinite;
}
@keyframes form-icon-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.form-dynamic-error p { margin: 0; font-size: var(--fs-body); }

/* ==================== 响应式 ==================== */
@media (max-width: 480px) {
  .form-actions { flex-direction: column; }
  .form-actions .btn { width: 100%; }
  .form-options { flex-direction: column; gap: 8px; }
}

/* ============================================================
   表单部署运行时样式（form-deployment.js）
   覆盖：触发按钮 / 弹窗 / 嵌入错误 / 轻量 Toast
   ============================================================ */

/* ---- 触发按钮 ---- */
.form-deploy-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md, 8px);
  background: var(--c-accent, #1a73e8);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
  transition: transform .15s, box-shadow .15s, opacity .15s;
  z-index: 998;
}
.form-deploy-trigger:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(26, 115, 232, 0.4); }
.form-deploy-trigger:active { transform: translateY(0); }
.form-deploy-trigger i { font-size: 16px; }

/* 悬浮（右下角） */
.form-deploy-trigger--float {
  position: fixed;
  right: 24px;
  bottom: 32px;
  border-radius: 28px;
  padding: 12px 22px;
  z-index: 998;
}
/* 页顶 */
.form-deploy-trigger--page_top {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 998;
}
.form-deploy-trigger--page_top:hover { transform: translateX(-50%) translateY(-1px); }
/* 页底 */
.form-deploy-trigger--page_bottom {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 998;
}
.form-deploy-trigger--page_bottom:hover { transform: translateX(-50%) translateY(-1px); }

/* ---- 弹窗 ---- */
.form-deploy-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  z-index: 999;
  opacity: 0;
  transition: opacity .2s;
  overflow-y: auto;
}
.form-deploy-modal--show { opacity: 1; }
.form-deploy-modal__dialog {
  width: 100%;
  background: #fff;
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  transform: translateY(-12px);
  transition: transform .2s;
}
.form-deploy-modal--show .form-deploy-modal__dialog { transform: translateY(0); }
.form-deploy-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-line, #eee);
}
.form-deploy-modal__title { margin: 0; font-size: 16px; font-weight: 600; color: var(--c-text, #222); }
.form-deploy-modal__close {
  width: 28px; height: 28px;
  border: none; background: none;
  font-size: 22px; line-height: 1;
  color: var(--c-muted, #999);
  cursor: pointer; border-radius: 4px;
  transition: background .15s, color .15s;
}
.form-deploy-modal__close:hover { background: var(--c-bg, #f5f5f5); color: var(--c-text, #222); }
.form-deploy-modal__body { padding: 20px; max-height: calc(100vh - 200px); overflow-y: auto; }
.form-deploy-modal__loading,
.form-deploy-modal__error {
  text-align: center;
  padding: 40px 16px;
  color: var(--c-muted, #999);
  font-size: 14px;
}
.form-deploy-modal__error { color: var(--c-danger, #d32f2f); }
.form-deploy-modal__body .form-dynamic-container { padding: 0; }

/* ---- 嵌入错误 ---- */
.form-deploy-embed__error {
  padding: 24px;
  text-align: center;
  color: var(--c-danger, #d32f2f);
  font-size: 14px;
  background: #fef2f2;
  border-radius: var(--radius-md, 8px);
}

/* ---- 轻量 Toast ---- */
.form-deploy-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  padding: 10px 20px;
  border-radius: var(--radius-md, 8px);
  font-size: 14px;
  color: #fff;
  z-index: 10000;
  opacity: 0;
  transition: transform .25s, opacity .25s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  pointer-events: none;
  max-width: 80vw;
}
.form-deploy-toast--show { transform: translateX(-50%) translateY(0); opacity: 1; }
.form-deploy-toast--success { background: #16a34a; }
.form-deploy-toast--error { background: #dc2626; }
.form-deploy-toast--info { background: #2563eb; }

/* ---- 弹窗内表单适配 ---- */
.form-deploy-modal__body .form-card { box-shadow: none; padding: 0; }
.form-deploy-modal__body .sec-head { margin-bottom: 16px; }
.form-deploy-modal__body .sec-title { font-size: 16px; }

@media (max-width: 600px) {
  .form-deploy-trigger--float { right: 12px; bottom: 20px; padding: 10px 16px; }
  .form-deploy-modal { padding: 0; align-items: stretch; }
  .form-deploy-modal__dialog { border-radius: 0; min-height: 100vh; }
  .form-deploy-modal__body { max-height: none; }
}