/* ==========================================================
   base/image.css — 通用图片上传/展示/Lightbox 样式
   从 modules/moments/moments.css 提取
   类名统一前缀：img-upload-（编辑器）、img-display-（展示）、img-lightbox（大图）
========================================================== */

/* ===== 图片编辑器 ===== */
.content-block-image { padding-bottom: 8px; }

.img-upload-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0;
}

.img-upload-thumb {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(167,139,250,0.08);
  border: 1.5px solid rgba(167,139,250,0.15);
}

.img-upload-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.img-upload-thumb.uploading,
.img-upload-thumb.loading {
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-upload-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.img-upload-loading .spinner {
  width: 22px;
  height: 22px;
  border: 2.5px solid rgba(167,139,250,0.2);
  border-top-color: var(--purple);
  border-radius: 50%;
  animation: imgSpin 0.7s linear infinite;
}

@keyframes imgSpin {
  to { transform: rotate(360deg); }
}

.img-upload-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0,0,0,0.55);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s;
}

.img-upload-thumb:hover .img-upload-remove {
  opacity: 1;
}

.img-upload-add-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1.5px dashed rgba(34,211,238,0.4);
  border-radius: 10px;
  background: rgba(34,211,238,0.04);
  color: #0891b2;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.img-upload-add-btn:hover {
  background: rgba(34,211,238,0.12);
  border-color: #0891b2;
}

/* ===== 图片展示（卡片/详情页） ===== */
.img-display-block {
  margin: 10px 0;
}

.img-display-placeholder {
  padding: 16px;
  text-align: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
}

.img-display-layout {
  display: grid;
  gap: 4px;
  border-radius: 10px;
  overflow: hidden;
}

.img-display-layout.single {
  grid-template-columns: 1fr;
}

.img-display-layout.single .img-display-item {
  max-height: 300px;
}

.img-display-layout.grid-2 {
  grid-template-columns: 1fr 1fr;
}

.img-display-layout.grid-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.img-display-layout.grid-4 {
  grid-template-columns: 1fr 1fr;
}

.img-display-layout.grid-many {
  grid-template-columns: repeat(3, 1fr);
}

.img-display-item {
  overflow: hidden;
  background: rgba(0,0,0,0.15);
  aspect-ratio: 1;
}

.img-display-layout.single .img-display-item {
  aspect-ratio: auto;
}

.img-display-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform 0.2s;
}

.img-display-item img:hover {
  transform: scale(1.02);
}

/* ===== 简易 Lightbox ===== */
.img-lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  animation: imgFadeIn 0.2s;
}

.img-lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: 8px;
}

@keyframes imgFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== 移动端适配 ===== */
@media (max-width: 680px) {
  .img-upload-thumb {
    width: 64px;
    height: 64px;
  }
  .img-display-layout.grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}