/* ====== GoGoGong 图片水印 — 工具专属样式 ====== */

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

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

/* ----- 上传区域（复用图片压缩的样式） ----- */
.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);
}

.upload-zone.has-files {
  border-style: solid;
}

.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);
}

.upload-toolbar {
  display: flex;
  justify-content: center;
  padding: var(--space-4) var(--space-5);
}

.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;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
}

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

.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);
}

.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 + 预览 左右布局 ----- */
.wm-layout {
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
  margin-top: var(--space-4);
}

.wm-layout-left {
  flex: 0 0 420px;
  min-width: 0;
}

.wm-layout-right {
  flex: 1;
  min-width: 0;
}

/* ----- 参数面板 ----- */
.options-panel {
  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);
}

.preset-row {
  display: flex;
  gap: var(--space-2);
}

/* 恢复默认按钮推到行末 */
#btn-reset-defaults {
  margin-left: auto;
}

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

.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);
}

.form-group-row input[type="text"] {
  flex: 1;
}

.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;
}

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

.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);
}

.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;
}

.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;
}

/* ----- 水印参数区域 ----- */
.wm-section {
  padding: var(--space-4);
  background: var(--color-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
}

.wm-section + .wm-section {
  margin-top: var(--space-3);
}

.wm-section > label {
  display: block;
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* ----- 位置选择器（九宫格） ----- */
.position-grid {
  display: grid;
  grid-template-columns: repeat(3, 36px);
  grid-template-rows: repeat(3, 36px);
  gap: 5px;
}

.pos-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  color: var(--color-text-secondary);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--duration-fast) var(--ease-default),
              background-color var(--duration-fast) var(--ease-default),
              color var(--duration-fast) var(--ease-default);
}

.pos-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.pos-btn.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #FFFFFF;
}

/* ----- 预览区（卡片式，视觉重心） ----- */
.preview-section {
  padding: var(--space-5);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.preview-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

/* 实时预览绿点指示 */
.preview-label::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
}

.preview-canvas-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.preview-canvas-wrap canvas {
  max-width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-image:
    repeating-conic-gradient(var(--color-bg-secondary) 0% 25%, transparent 0% 50%);
  background-size: 20px 20px;
}

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

/* ----- 结果列表（批量模式） ----- */
.results-compare {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  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-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;
}

@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);
}

.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);
}

/* ----- 字体大小模式切换 ----- */
.fs-mode-toggle {
  display: inline-flex;
  vertical-align: middle;
  margin-left: var(--space-3);
  gap: 0;
}

.fs-mode-toggle .btn + .btn {
  margin-left: -1px;
}

.fs-mode-toggle .btn:first-child {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.fs-mode-toggle .btn:last-child {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* ----- 无 label 表单组对齐补偿 ----- */
.form-group--no-label {
  padding-top: calc(var(--text-sm) * 1.5 + var(--space-2));
}

/* ----- 预览缩略图选中态 ----- */
.file-thumb-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-bg);
}

/* ----- 流式布局行（420px 左栏内） ----- */
.wm-flow-row {
  display: flex;
  gap: var(--space-3);
  align-items: flex-end;
}

.wm-flow-row + .wm-flow-row {
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-3);
}

.wm-flow-col--fixed {
  flex: 0 0 auto;
  min-width: 0;
}

.wm-flow-col--flex {
  flex: 1;
  min-width: 0;
}

/* 颜色选择器与文字输入框等高 */
#wm-color {
  width: 40px;
  height: 40px;
  padding: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-sizing: border-box;
}

/* ----- 水印位置 ----- */
.pos-body {
  display: flex;
  gap: var(--space-5);
  align-items: stretch;
}

.pos-offsets {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  justify-content: center;
}

.pos-offsets .form-group-row {
  gap: var(--space-2);
}

.pos-offsets input[type="number"] {
  width: 90px;
  height: 28px;
}

/* ----- 输出格式 ----- */
.wm-section .radio-group {
  display: flex;
  flex-direction: row;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.wm-section .radio-group .checkbox-label {
  line-height: 1.4;
}

/* ----- 平铺密度行禁用态 ----- */
.wm-tile-density-row.is-disabled {
  opacity: 0.4;
  pointer-events: 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;
  }

  .wm-flow-row {
    flex-direction: column;
    align-items: stretch;
  }

  .wm-layout {
    flex-direction: column;
  }

  .wm-layout-left {
    flex: 0 0 auto;
    width: 100%;
  }

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

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

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