/* preview.css — Preview Panel / Page Cards / Code Panel / Export / Todo / Tool Card */

/* ══════ Right: Preview Panel ══════ */
.preview-panel {
  flex: 1; display: flex; flex-direction: column;
  background: var(--bg2); min-width: 300px;
  position: relative;
}
/* 展开动画 */
.gen-page.preview-open .preview-panel {
  animation: slideIn 0.4s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
/* ══════ Work toolbar (顶部单行，替代旧的 .pv-tabs 全局切换) ══════ */
.work-toolbar {
  display: flex; align-items: center; gap: 10px;
  padding: 0 20px; height: 52px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2); position: relative;
}
/* ── Work selector dropdown ── */
.work-selector { position: relative; }
.ws-btn {
  display: flex; align-items: center; gap: 7px;
  padding: 4px 10px; border-radius: 8px;
  border: 1px solid transparent;
  background: transparent; color: var(--text);
  font-size: 13px; cursor: default;
  max-width: 280px; min-width: 80px;
  transition: background 0.12s, border-color 0.12s;
}
/* Only show hover/pointer when there are multiple works */
.ws-btn.multi { cursor: pointer; border-color: var(--border); }
.ws-btn.multi:hover { background: var(--bg3); }
.ws-status { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.ws-status.done { background: var(--green); }
.ws-status.processing { background: var(--orange); animation: ws-pulse 1.5s ease-in-out infinite; }
.ws-status.pending { background: var(--text3); }
@keyframes ws-pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.ws-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.ws-pages { font-size: 11px; color: var(--text3); flex-shrink: 0; }
.ws-caret { font-size: 9px; color: var(--text3); flex-shrink: 0; }
/* Loading spinner while work title pending */
.ws-btn.wt-loading .ws-label:empty::before {
  content: '';
  width: 12px; height: 12px;
  border: 1.5px solid var(--text3);
  border-right-color: transparent;
  border-radius: 50%;
  animation: sp-spin .7s linear infinite;
  display: inline-block;
}
.ws-menu {
  display: none; position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 240px; background: var(--bg2);
  border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 6px 24px rgba(0,0,0,.12); z-index: 500; padding: 4px;
}
.ws-menu.open { display: block; }
.ws-menu-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 7px; cursor: pointer;
  font-size: 13px; color: var(--text); transition: background 0.1s;
}
.ws-menu-item:hover { background: var(--bg3); }
.ws-menu-item.active { background: var(--accent-glow); }
.ws-item-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.ws-item-pages { font-size: 11px; color: var(--text3); }
.wt-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

/* ── Export button in toolbar ── */
.pvt-actions { position: relative; flex-shrink: 0; }
.pvt-export-btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; height: 28px; border-radius: 7px;
  border: 1px solid var(--border); background: var(--bg2);
  color: var(--text2); font-size: 12px; font-weight: 500;
  cursor: pointer; transition: all 0.15s; white-space: nowrap;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.pvt-export-btn:hover { background: var(--bg3); color: var(--text); }
.pvt-export-menu {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12); z-index: 200; min-width: 140px;
  overflow: hidden;
}
.pvt-export-menu.show { display: block; }
body.guest-mode .pvt-actions { display: none !important; }

/* Theme toggle */
.theme-btn {
  width: 32px; height: 32px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg3);
  color: var(--text2); cursor: pointer; display: flex;
  align-items: center; justify-content: center; font-size: 16px;
  transition: all 0.15s;
}
.theme-btn:hover { background: var(--bg4); color: var(--text); border-color: var(--accent); }

/* Export menu items */
.export-item {
  padding: 9px 14px; font-size: 13px; color: var(--text); cursor: pointer;
  transition: background 0.1s; white-space: nowrap;
}
.export-item:hover { background: var(--bg3); }
/* Export progress bar */
.export-progress {
  height: 3px; background: var(--bg4); border-radius: 2px; overflow: hidden;
  display: none; flex-shrink: 0;
}
.export-progress.active { display: block; }
.export-progress .bar {
  height: 100%; background: var(--accent); border-radius: 2px;
  width: 0%; transition: width 0.4s ease;
}
/* Toast notification */
.toast {
  position: fixed; top: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 20px; font-size: 13px; color: var(--text);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15); z-index: 9999;
  opacity: 0; transition: opacity 0.25s; pointer-events: none;
  max-width: 420px; text-align: center; line-height: 1.5;
}
.toast.show { opacity: 1; pointer-events: auto; }
.toast.error { border-color: var(--red); }
.toast.error::before { content: ''; }
.toast .toast-rid {
  display: block;
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  user-select: all;
  cursor: text;
  opacity: 0.8;
}

/* Preview area (vertical scroll, single column) */
.pv-body { flex: 1; position: relative; overflow: hidden; }
.pv-preview {
  display: block; width: 100%; height: 100%;
  overflow-y: auto; padding: 20px; background: var(--pv-bg);
}
.pv-preview::-webkit-scrollbar { width: 4px; }
.pv-preview::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.pv-empty {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; height: 100%; text-align: center; color: var(--text3);
}
.pv-empty svg { margin-bottom: 10px; opacity: 0.15; }
.pv-empty p { font-size: 13px; }

/* Page cards — 单栏，每张卡片内 Preview/Code 段控件切换 */
.page-card {
  margin-bottom: 20px; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border); background: var(--bg2);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06); animation: fadeUp 0.3s ease-out;
}
[data-theme="dark"] .page-card { box-shadow: 0 2px 8px rgba(0,0,0,0.3); }

/* 卡内工具栏：段控件 + 页码 */
.page-card .pc-toolbar {
  display: flex; align-items: center;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.page-card .pc-seg {
  display: inline-flex; align-items: center;
  background: var(--bg4); border-radius: 8px;
  padding: 3px; gap: 2px;
}
.page-card .pc-seg .seg-btn {
  font-size: 12px; padding: 3px 12px;
  border-radius: 6px; cursor: pointer;
  color: var(--text3); font-weight: 500;
  transition: all 0.15s;
  border: none; background: transparent;
}
.page-card .pc-seg .seg-btn.active {
  background: var(--accent); color: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,0.12);
}
.page-card .pc-seg .seg-btn:hover:not(.active) { color: var(--text); }
.page-card .pc-page-idx {
  margin-left: auto; font-size: 12px;
  color: var(--text3); font-variant-numeric: tabular-nums;
}

/* 卡内内容区：Preview/Code 两态切换，共用 16:9 高度不跳变 */
.page-card .pc-content {
  position: relative;
  aspect-ratio: 1920 / 1080; /* default; overridden by JS per-card. canvas-literal-allow */
  overflow: hidden;
}
.page-card .pc-preview {
  position: absolute; inset: 0;
  display: none;
}
.page-card .pc-preview.active { display: block; }
.page-card .pc-code {
  position: absolute; inset: 0;
  display: none; flex-direction: column;
  background: #1e1e2e;
}
.page-card .pc-code.active { display: flex; }
.page-card .pc-code .cc-status {
  flex-shrink: 0;
  padding: 6px 14px; font-size: 11px;
  color: #fbbf24; background: #181828;
  border-bottom: 1px solid #2a2a3e;
}
.page-card.cc-done .pc-code .cc-status { color: #34d399; }
.page-card .pc-code pre {
  flex: 1; min-height: 0;
  margin: 0; padding: 12px 14px;
  overflow: auto;
  font-family: 'SF Mono','Consolas','Menlo','Monaco', monospace;
  font-size: 12px; line-height: 1.6; color: #abb2bf;
  white-space: pre-wrap; word-break: break-all;
}
.page-card .pc-code pre::-webkit-scrollbar { width: 4px; }
.page-card .pc-code pre::-webkit-scrollbar-thumb { background: #3a3a50; border-radius: 2px; }
.page-card .pc-code pre code.hljs { background: transparent; padding: 0; }

.page-card .pc-frame {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  background: var(--frame-bg); overflow: hidden;
}
.page-card .pc-frame iframe {
  position: absolute; top: 0; left: 0;
  width: 1920px; height: 1080px; border: none; transform-origin: 0 0; /* default; overridden by JS (issue #97) */
}

/* Placeholder page card (before generation) */
.page-card.placeholder .pc-frame {
  display: flex; align-items: center; justify-content: center;
}
/* Preview tab 的居中 loading（占位 + 生成中 两态共用）
   注意：不能只对 .placeholder 生效，markGeneratingCard 会移除 .placeholder */
.page-card .pc-preview .pc-loading {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text3); font-size: 12px;
}
.page-card.generating .pc-preview .pc-loading { color: var(--orange); }
.page-card.generating { border-color: var(--orange); }
.page-card.generating .pc-toolbar { color: var(--orange); }

/* "被打断"页（status=generating 但无 cdn_url，通常是 Stop 后刷新恢复）
   与灰态 .placeholder 区分：橙色边框 + ⏸ 图标 + "等待重新生成" */
.page-card.interrupted {
  border-color: var(--orange);
  background: var(--orange-bg, #fff7ed);
}
.page-card.interrupted .pc-preview .pc-loading {
  color: var(--orange);
  font-size: 13px;
}
.page-card.interrupted .pc-interrupted-icon {
  font-size: 22px;
  line-height: 1;
}
.page-card.interrupted .pc-toolbar {
  color: var(--orange);
}

/* 生成中：把 .cc-status 浮层化为居中 pill（spinner + 文案），
   完成后 .generating 被移除，自动回退到顶部细条样式 */
.page-card.generating .pc-code .cc-status {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  font-size: 13px;
  color: var(--orange);
  background: rgba(24, 24, 40, 0.85);
  border: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: 24px;
  z-index: 2;
  pointer-events: none;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Todo list card */
.todo-card {
  margin-top: 6px; background: var(--bg4); border-radius: 8px;
  padding: 10px 14px; border: 1px solid var(--border);
}
.td-item {
  display: flex; align-items: center; gap: 8px;
  padding: 3px 0; font-size: 12px; color: var(--text2);
}
.td-item .td-check {
  flex-shrink: 0; width: 14px; text-align: center;
  font-size: 11px; color: var(--text3);
}
.td-item.completed .td-check { color: var(--green); }
.td-item.completed .td-text { text-decoration: line-through; color: var(--text3); }

/* ═══ Unified Tool Card (Genspark style) ═══ */
.tool-card {
  margin-bottom: 10px; animation: fadeUp 0.25s ease-out;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden;
}
.tool-card .tc-header {
  display: flex; align-items: center;
  padding: 9px 14px; font-size: 13px; color: var(--text2);
}
.tool-card.has-body .tc-header {
  border-bottom: 1px solid var(--border);
}
.tool-card .tc-label { color: var(--text3); margin-right: 8px; }
.tool-card .tc-sep { color: var(--border); margin-right: 8px; font-size: 14px; }
.tool-card .tc-icon {
  width: 18px; height: 18px; display: flex;
  align-items: center; justify-content: center;
  font-size: 13px; flex-shrink: 0; margin-right: 6px;
}
.tool-card .tc-name { font-weight: 600; color: var(--text); }
.tool-card .tc-status {
  margin-left: auto; position: relative; display: flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; flex-shrink: 0;
}
.tool-card .tc-spinner {
  width: 20px; height: 20px; border: 1.5px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.tool-card .tc-progress {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 7px; color: var(--text2); font-weight: 600; font-variant-numeric: tabular-nums;
  line-height: 1; pointer-events: none;
}
.tool-card.done .tc-spinner, .tool-card.done .tc-progress { display: none; }
.tool-card.done .tc-status::after {
  content: '\2713'; color: var(--green); font-size: 13px; font-weight: 600;
}
.tool-card .tc-body { padding: 8px 14px 10px; }
.tool-card .tc-desc { font-size: 13px; color: var(--text2); line-height: 1.6; }
.tool-card .tc-desc-line { display: block; padding: 1px 0; }
/* Tool body: inline image thumbnails */
.tool-card .tc-thumbs { display: flex; gap: 6px; overflow-x: auto; padding: 2px 0; }
.tool-card .tc-thumbs img {
  width: 56px; height: 56px; object-fit: cover; border-radius: 6px;
  border: 1px solid var(--border); cursor: pointer; flex-shrink: 0;
  transition: transform 0.15s, box-shadow 0.15s;
}
.tool-card .tc-thumbs img:hover {
  transform: scale(1.08); box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
/* Tool body: todo list */
.tool-card .tc-todo-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 6px; font-size: 11px;
}
.tool-card .tc-todo-total { color: var(--text2); font-weight: 600; }
.tool-card .tc-todo-sep { color: var(--border); }
.tool-card .tc-todo-remaining { color: var(--accent2); font-weight: 500; }
.tool-card .tc-todo-item {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 2px 0; font-size: 12px;
}
.tool-card .tc-todo-check {
  flex-shrink: 0; width: 16px; height: 16px; border-radius: 3px;
  border: 1.5px solid var(--border); display: flex;
  align-items: center; justify-content: center; margin-top: 1px;
  font-size: 10px; color: transparent; background: transparent;
  transition: all 0.15s;
}
.tool-card .tc-todo-item.done .tc-todo-check {
  background: var(--green); border-color: var(--green); color: #fff;
}
.tool-card .tc-todo-item.done .tc-todo-text {
  color: var(--text3); text-decoration: line-through;
}
.tool-card .tc-todo-item.pending .tc-todo-text { color: var(--text2); }
.tool-card .tc-todo-item.in-progress .tc-todo-check {
  border-color: var(--orange); color: var(--orange);
}
.tool-card .tc-todo-item.in-progress .tc-todo-text { color: var(--text); }
/* Tool body: thinking (expandable) */
.tool-card .tc-thinking-summary {
  color: var(--text3); cursor: pointer; line-height: 1.5; font-size: 12px;
}
.tool-card .tc-arrow-close {
  color: var(--text3); cursor: pointer; float: right; font-size: 12px; margin: 0 0 4px 8px;
}
.tool-card .tc-thinking-full {
  margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border);
  color: var(--text2); line-height: 1.6; font-size: 12px;
  max-height: 300px; overflow-y: auto; white-space: pre-wrap;
}
.tool-card .tc-thinking-full::-webkit-scrollbar { width: 3px; }
.tool-card .tc-thinking-full::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ═══ Tool card "查看" button ═══ */
.tool-card .tc-view-btn {
  margin-left: 6px; padding: 0; border: none; background: none;
  color: var(--text3); font-size: 11px; cursor: pointer;
}
.tool-card .tc-view-btn:hover { color: var(--accent); text-decoration: underline; }

/* ═══ View tabs (Slides | Files) ═══ */
body.guest-mode #viewTabs { display: none; }
.view-tabs {
  display: flex; align-items: center; gap: 2px;
  background: var(--bg3); border-radius: 7px; padding: 3px;
  margin-right: 6px; flex-shrink: 0;
}
.vt-btn {
  padding: 3px 10px; border-radius: 5px; border: none;
  background: transparent; color: var(--text3);
  font-size: 12px; cursor: pointer; transition: all 0.15s;
}
.vt-btn:hover { color: var(--text); background: var(--bg2); }
.vt-btn.active { background: var(--bg2); color: var(--text); font-weight: 500; box-shadow: 0 1px 3px rgba(0,0,0,.08); }

/* ═══ VFS File Browser — Miller columns ═══ */
/* VFS browser styles moved to vfs_browser.css (VS Code mode redesign) */
#fbWrap {
  display: none; flex: 1; overflow: hidden;
  background: var(--bg2);
}
/* Legacy detail pane styles kept for backward compat during transition */
.fb-det-chip  {
  padding: 2px 7px; border-radius: 4px; font-size: 11px;
  background: var(--bg3); color: var(--text2); border: 1px solid var(--border);
}