/* ====== GoGoGong 图片压缩 — 工具专属样式 ====== */

/* ====== 工具描述 + FAQ 同容器宽度 ====== */
.tool-header .tool-desc {
  max-width: none;
}

.faq-section {
  max-width: none;
}

/* ----- 上传区域（外层容器） ----- */
.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--duration-normal) var(--ease-default),
              background-color var(--duration-normal) var(--ease-default);
  background: var(--color-surface);
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}

/* 有文件时切换为实线 */
.upload-zone.has-files {
  border-style: solid;
}

/* ----- 初始占位区（居中） ----- */
.upload-placeholder {
  padding: var(--space-12) var(--space-6);
  text-align: center;
  pointer-events: none;
}

.upload-placeholder-icon {
  width: 48px;
  height: 48px;
  color: var(--color-text-muted);
}

.upload-placeholder-text {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  margin-top: var(--space-3);
}

.upload-placeholder-hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ----- 已选工具栏（缩略图居中） ----- */
.upload-toolbar {
  display: flex;
  justify-content: center;
  padding: var(--space-4) var(--space-5);
}

/* ----- 文件缩略图列表 ----- */
.file-thumb-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
}

.file-thumb-item {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: repeating-conic-gradient(var(--color-bg-secondary) 0% 25%, transparent 0% 50%) 0 0 / 16px 16px;
  flex-shrink: 0;
  position: relative;
}

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

/* 单张移除按钮 */
.file-thumb-remove {
  position: absolute;
  top: 1px;
  right: 1px;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-default);
}

.file-thumb-item:hover .file-thumb-remove {
  opacity: 1;
}

.file-thumb-remove:hover {
  background: var(--color-error);
}

/* 继续添加按钮 */
.file-thumb-add {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  border: 2px dashed var(--color-border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color var(--duration-normal) var(--ease-default),
              color var(--duration-normal) var(--ease-default),
              background-color var(--duration-normal) var(--ease-default);
}

.file-thumb-add:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

/* ----- 参数面板 ----- */
.options-panel {
  margin-top: var(--space-6);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

/* 预设按钮行 */
.preset-row {
  display: flex;
  gap: var(--space-2);
}

/* 双栏行 */
.options-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

/* 表单组内部行（滑块 + 数值、输入 + 单位） */
.form-group-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.form-group-row input[type="range"] {
  flex: 1;
  min-width: 0;
}

.form-group-row input[type="number"] {
  width: 120px;
}

.form-group-row input[type="number"]::placeholder {
  font-size: var(--text-sm);
}

/* EXIF 组靠底对齐 */
.form-group-exif {
  justify-content: flex-end;
}

/* 滑块值显示 */
.slider-value {
  display: inline-block;
  min-width: 28px;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* 表单提示 */
.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* 单选组 */
.radio-group {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.radio-group .png-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-left: var(--space-1);
}

/* 操作按钮行 */
.batch-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.batch-btns {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* 批量统计信息 */
.batch-stats {
  display: flex;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.batch-stats .batch-savings {
  color: var(--color-success);
  font-weight: 500;
}

/* ----- 压缩结果对比区 ----- */
.results-compare {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.result-compare {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-card);
}

.result-compare-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
}

.result-compare-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.result-compare-stats {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-secondary);
  flex-shrink: 0;
  margin-left: var(--space-3);
}

.result-compare-stats .savings-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-success);
  background: var(--color-success-bg);
  border-radius: var(--radius-sm);
  padding: 0 var(--space-2);
  margin-left: var(--space-2);
}

.result-compare-body {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-4);
}

.result-compare-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.result-compare-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.result-compare-label .preview-dl {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  cursor: pointer;
  user-select: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--duration-fast) var(--ease-default);
}

.result-compare-label .preview-dl:hover {
  background: var(--color-primary-bg);
}

.result-compare-item img {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  cursor: pointer;
  background-image:
    repeating-conic-gradient(var(--color-bg-secondary) 0% 25%, transparent 0% 50%);
  background-size: 20px 20px;
  background-position: 0 0;
}

@media (prefers-color-scheme: dark) {
  .result-compare-item img {
    background-image:
      repeating-conic-gradient(rgba(255, 255, 255, 0.05) 0% 25%, transparent 0% 50%);
  }
}

.result-compare-meta {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  border-top: 1px solid var(--color-border-light);
  line-height: 1.6;
}

.result-compare-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  padding-top: 26px;
}

.result-compare-arrow svg {
  width: 20px;
  height: 20px;
}

/* ----- 放大预览浮层 ----- */
.preview-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-modal) var(--ease-out);
}

.preview-lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.preview-lightbox .lightbox-body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.lightbox-name {
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 500;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  max-width: 40vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lightbox-tabs {
  display: flex;
  gap: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.lightbox-tab {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  padding: 4px var(--space-3);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-default),
              color var(--duration-fast) var(--ease-default);
}

.lightbox-tab + .lightbox-tab {
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}

.lightbox-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.lightbox-tab.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.25);
  font-weight: 500;
}

.preview-lightbox img {
  max-width: 92vw;
  max-height: 82vh;
  object-fit: contain;
  background-image:
    repeating-conic-gradient(var(--color-bg-secondary) 0% 25%, transparent 0% 50%);
  background-size: 20px 20px;
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-sm);
  cursor: default;
}

@media (prefers-color-scheme: dark) {
  .preview-lightbox img {
    background-image:
      repeating-conic-gradient(rgba(255, 255, 255, 0.05) 0% 25%, transparent 0% 50%);
  }
}

.lightbox-close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration-fast) var(--ease-default);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ----- FAQ 宽度对齐 ----- */
.faq-section {
  max-width: none;
}

/* ====== 响应式（700px 断点） ====== */
@media (max-width: 700px) {
  .result-compare-body {
    grid-template-columns: 1fr;
  }

  .result-compare-arrow {
    display: none;
  }

  .result-compare-item img {
    max-height: 250px;
  }

  .options-split {
    grid-template-columns: 1fr;
  }

  .batch-actions {
    flex-direction: column;
  }

  .radio-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .upload-zone {
    padding: var(--space-8) var(--space-4);
  }

  .batch-stats {
    flex-direction: column;
    gap: var(--space-1);
  }
}