/**
 * PAG 动画预览器样式
 * 独立于博客主题，仅作用于 #pv-app 容器。
 * 暗色模式适配 Chirpy 的 html[mode=dark] 属性 + 系统偏好。
 */

#pv-app {
  --pv-border: rgba(128, 128, 128, 0.35);
  --pv-border-strong: rgba(128, 128, 128, 0.55);
  --pv-bg: rgba(128, 128, 128, 0.07);
  --pv-bg-hover: rgba(128, 128, 128, 0.14);
  --pv-text: #212529;
  --pv-text-muted: rgba(128, 128, 128, 0.95);
  --pv-accent: #2f6fde;
  --pv-accent-text: #fff;
  --pv-ok: #1a7f4b;
  --pv-warn: #a05c00;
  --pv-err: #c0392b;
  --pv-radius: 8px;
  --pv-canvas-bg: #f0f0f0;
}

html[mode='dark'] #pv-app {
  --pv-text: #e9ecef;
  --pv-text-muted: rgba(190, 190, 190, 0.95);
  --pv-accent: #5b8ff0;
  --pv-bg: rgba(255, 255, 255, 0.06);
  --pv-bg-hover: rgba(255, 255, 255, 0.12);
  --pv-canvas-bg: #1a1a1a;
}

@media (prefers-color-scheme: dark) {
  html:not([mode='light']) #pv-app {
    --pv-text: #e9ecef;
    --pv-text-muted: rgba(190, 190, 190, 0.95);
    --pv-accent: #5b8ff0;
    --pv-bg: rgba(255, 255, 255, 0.06);
    --pv-bg-hover: rgba(255, 255, 255, 0.12);
    --pv-canvas-bg: #1a1a1a;
  }
}

#pv-app {
  color: var(--pv-text);
}

/* 上传区域 */
.pv-upload {
  border: 2px dashed var(--pv-border-strong);
  border-radius: var(--pv-radius);
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--pv-bg);
  margin-bottom: 1.2rem;
}
.pv-upload:hover, .pv-upload.pv-dragover {
  border-color: var(--pv-accent);
  background: var(--pv-bg-hover);
}
.pv-upload i {
  font-size: 2rem;
  color: var(--pv-accent);
  margin-bottom: 0.6rem;
  display: block;
}
.pv-upload-text {
  font-size: 1rem;
  font-weight: 500;
}
.pv-upload-hint {
  font-size: 0.85rem;
  color: var(--pv-text-muted);
  margin-top: 0.3rem;
}

/* 预览区 */
.pv-preview-wrap {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius);
  overflow: hidden;
  margin-bottom: 1.2rem;
  background: var(--pv-canvas-bg);
  position: relative;
}
.pv-canvas {
  width: 100%;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pv-canvas canvas {
  max-width: 100%;
  max-height: 100%;
}
.pv-empty {
  color: var(--pv-text-muted);
  font-size: 0.95rem;
}

/* 加载中遮罩 */
.pv-loading {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.95rem;
  gap: 0.5rem;
}

/* 控制栏 */
.pv-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--pv-border);
  flex-wrap: wrap;
  background: var(--pv-bg);
}
.pv-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--pv-border-strong);
  border-radius: var(--pv-radius);
  background: transparent;
  color: var(--pv-text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.pv-btn:hover {
  background: var(--pv-bg-hover);
  border-color: var(--pv-accent);
}
.pv-btn.pv-active {
  background: var(--pv-accent);
  border-color: var(--pv-accent);
  color: var(--pv-accent-text);
}
.pv-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pv-seek {
  flex: 1;
  min-width: 120px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--pv-border);
  border-radius: 2px;
  outline: none;
}
.pv-seek::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--pv-accent);
  cursor: pointer;
}
.pv-seek::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--pv-accent);
  cursor: pointer;
  border: none;
}
.pv-time {
  font-size: 0.8rem;
  color: var(--pv-text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* 信息面板 */
.pv-info {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius);
  padding: 1rem;
  margin-bottom: 1.2rem;
}
.pv-info-title {
  font-weight: 600;
  margin-bottom: 0.7rem;
  font-size: 1rem;
}
.pv-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem 1rem;
}
.pv-info-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}
.pv-info-label {
  color: var(--pv-text-muted);
}
.pv-info-value {
  font-weight: 500;
  font-family: var(--bs-font-monospace, monospace);
  font-size: 0.85rem;
}

/* 背景色选择 */
.pv-bg-select {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.pv-bg-label {
  font-size: 0.85rem;
  color: var(--pv-text-muted);
  margin-right: 0.3rem;
}
.pv-bg-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--pv-border);
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
}
.pv-bg-dot:hover {
  transform: scale(1.1);
}
.pv-bg-dot.pv-active {
  border-color: var(--pv-accent);
  box-shadow: 0 0 0 2px var(--pv-accent);
}

/* 状态提示 */
.pv-status {
  font-size: 0.9rem;
  color: var(--pv-text-muted);
  min-height:  1.4rem;
  margin-bottom: 0.8rem;
}
.pv-status.pv-err { color: var(--pv-err); }

/* 图层结构面板 */
.pv-layers {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius);
  padding: 1rem;
  margin-bottom: 1.2rem;
  max-height: 400px;
  overflow-y: auto;
}
.pv-layers-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.7rem;
}
.pv-layers-title {
  font-weight: 600;
  font-size: 1rem;
}
.pv-layers-count {
  font-size: 0.8rem;
  color: var(--pv-text-muted);
}
.pv-layers-tree {
  font-size: 0.85rem;
}
.pv-layer-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.4rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.1s;
}
.pv-layer-item:hover {
  background: var(--pv-bg-hover);
}
.pv-layer-item.pv-selected {
  background: rgba(47, 111, 222, 0.15);
  outline: 1px solid var(--pv-accent);
}
.pv-layer-item.pv-hidden {
  opacity: 0.5;
}
.pv-layer-icon {
  width: 16px;
  text-align: center;
  flex-shrink: 0;
  font-size: 0.9rem;
}
.pv-layer-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pv-layer-type {
  font-size: 0.75rem;
  color: var(--pv-text-muted);
  background: var(--pv-bg);
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
  flex-shrink: 0;
}
.pv-layer-attrs {
  font-size: 0.75rem;
  color: var(--pv-text-muted);
  margin-left: 0.3rem;
  flex-shrink: 0;
}