/* ============================================================
 * style.css —— 无限脑图 · 3级下钻视区
 * ============================================================ */
:root {
  --topbar-h: 48px;
  --hint-h: 30px;
}

/* ---------- 主题变量 ---------- */
body.dark {
  --bg: #000000;
  --bg-soft: #0a0a14;
  --panel: #0d0d1a;
  --panel-2: #13132a;
  --border: #26263f;
  --text: #e7e9f4;
  --text-dim: #8b8fa8;
  --accent: #00e5ff;
  --accent-2: #b16bff;
  --mm-line: #3a3f5c;
  --shadow: rgba(0, 0, 0, .55);
  --cm-bg: #0b0b15;
}
body.light {
  --bg: #f6f7fb;
  --bg-soft: #eef0f7;
  --panel: #ffffff;
  --panel-2: #f1f3fa;
  --border: #d8dcec;
  --text: #1c1f33;
  --text-dim: #6a6f87;
  --accent: #0086ff;
  --accent-2: #8a2be2;
  --mm-line: #c3c9e2;
  --shadow: rgba(20, 25, 70, .18);
  --cm-bg: #ffffff;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  transition: background .3s ease, color .3s ease;
}

button { font-family: inherit; cursor: pointer; }
a { text-decoration: none; color: inherit; }

/* ============ 顶部菜单栏 ============ */
#topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 30;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  background: none; border: none; color: var(--text); font-size: 16px;
  font-weight: 700; padding: 6px 10px; border-radius: 8px;
}
.brand:hover { background: var(--panel-2); }
.brand-icon { font-size: 20px; }
.topbar-spacer { flex: 1; }
.topbar-menu { display: flex; align-items: center; gap: 6px; }

.tb-btn {
  min-width: 36px; height: 32px; padding: 0 8px;
  border: 1px solid transparent; border-radius: 8px;
  background: transparent; color: var(--text); font-size: 16px;
  display: inline-flex; align-items: center; justify-content: center;
}
.tb-btn:hover { background: var(--panel-2); border-color: var(--border); }
.tb-link {
  padding: 6px 12px; border-radius: 8px; font-size: 13px; color: var(--text-dim);
}
.tb-link:hover { color: var(--accent); background: var(--panel-2); }
.tb-avatar {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px 4px 4px; border-radius: 999px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  font-size: 13px; margin-left: 4px;
}
.tb-avatar:hover { border-color: var(--accent); }
.avatar-fallback {
  width: 26px; height: 26px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 13px; font-weight: 700;
}
#avatar-img { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; }

/* ---------- 下拉菜单 ---------- */
.dd { position: relative; }
.dd-menu {
  position: absolute; right: 0; top: calc(100% + 6px);
  min-width: 200px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: 0 10px 30px var(--shadow);
  padding: 6px; display: none; z-index: 50;
}
.dd.open .dd-menu { display: block; }
.dd-item {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 8px 10px; border: none; background: none; color: var(--text);
  border-radius: 6px; font-size: 13px; text-align: left;
}
.dd-item:hover { background: var(--panel-2); color: var(--accent); }
.dd-themes { min-width: 230px; max-height: 420px; overflow: auto; }
.theme-item {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 7px 10px; border: none; background: none; color: var(--text);
  border-radius: 6px; font-size: 13px;
}
.theme-item:hover { background: var(--panel-2); }
.theme-swatch {
  width: 46px; height: 16px; border-radius: 4px; border: 1px solid var(--border); flex-shrink: 0;
}
.theme-check { margin-left: auto; color: var(--accent); font-size: 12px; }
.shape-dot {
  width: 14px; height: 14px; border: 1.5px solid var(--text); border-radius: 3px;
  display: inline-flex; align-items: center; justify-content: center;
}
.shape-dot.circle { border-radius: 50%; }
.shape-dot.hexagon { clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0 50%); border: none; background: var(--text-dim); }
.shape-dot.cloud { border-radius: 50% 50% 50% 0; border-color: var(--accent); }
/* ============ 主布局 ============ */
#app { display: flex; height: calc(100% - var(--topbar-h)); }

/* ---------- 左：编辑器 ---------- */
#editor-panel {
  width: 0; flex-shrink: 0; overflow: hidden;
  background: var(--bg-soft); border-right: 1px solid var(--border);
  transition: width .28s cubic-bezier(.4, 0, .2, 1);
  display: flex; flex-direction: column;
}
body.editor-open #editor-panel { width: 30%; }
.editor-head {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.editor-title { font-weight: 700; font-size: 13px; }
.editor-hint { font-size: 11px; color: var(--text-dim); flex: 1; }
.collapse-btn {
  border: none; background: var(--panel-2); color: var(--text);
  width: 26px; height: 26px; border-radius: 6px; font-size: 14px;
}
.collapse-btn:hover { color: var(--accent); }
#src-editor { flex: 1; }
.editor-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-dim);
}
.mini-btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  border-radius: 6px; padding: 3px 10px; font-size: 12px;
}
.mini-btn:hover { color: var(--accent); border-color: var(--accent); }

/* CodeMirror 定制 */
.CodeMirror { height: 100% !important; font-family: "Cascadia Code", Consolas, "Microsoft YaHei", monospace; font-size: 13.5px; }
body.dark .CodeMirror { background: var(--cm-bg); }
body.light .CodeMirror { background: var(--cm-bg); }
body.light .CodeMirror-gutters { background: #f1f3fa; }
.CodeMirror-gutters { border-right: 1px solid var(--border); }
.line-flash { background: rgba(255, 200, 60, .28) !important; }

/* 缩进树的深度彩虹色 */
.cm-depth-0 { color: #ff6ec7; }
.cm-depth-1 { color: #9be36e; }
.cm-depth-2 { color: #4fd2ff; }
.cm-depth-3 { color: #ffd166; }
.cm-depth-4 { color: #c792ea; }
.cm-depth-5 { color: #7ee787; }
.cm-depth-6 { color: #ffa657; }
.cm-depth-7 { color: #79c0ff; }
.cm-depth-8 { color: #d2a8ff; }
body.light .cm-depth-0 { color: #d63384; }
body.light .cm-depth-1 { color: #2f9e44; }
body.light .cm-depth-2 { color: #1971c2; }
body.light .cm-depth-3 { color: #e8590c; }
body.light .cm-depth-4 { color: #9c36b5; }
.cm-title { font-weight: 700; }
.cm-comment { opacity: .55; font-style: italic; }

/* ---------- 右：画布 ---------- */
#canvas-panel {
  flex: 1; position: relative; display: flex; flex-direction: column;
  min-width: 0; background: var(--bg);
}
.open-editor-btn {
  position: absolute; left: 10px; top: 8px; z-index: 20;
  width: 26px; height: 26px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel);
  color: var(--text); font-size: 15px; display: none;
}
body:not(.editor-open) .open-editor-btn { display: block; }
.open-editor-btn:hover { color: var(--accent); border-color: var(--accent); }

/* 搜索 */
.toolbar { display: flex; justify-content: center; padding: 10px 12px 6px; }
.search-wrap { position: relative; width: min(520px, 72%); }
.search-ico { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); opacity: .7; font-size: 13px; }
#search-input {
  width: 100%; padding: 8px 14px 8px 34px;
  border: 1px solid var(--border); border-radius: 999px;
  background: var(--panel); color: var(--text); font-size: 13px; outline: none;
}
#search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 12px 30px var(--shadow); max-height: 300px; overflow: auto; z-index: 40; display: none;
}
.search-results.show { display: block; }
.search-result-item { padding: 8px 12px; font-size: 13px; cursor: pointer; display: flex; gap: 8px; align-items: center; }
.search-result-item:hover, .search-result-item.active { background: var(--panel-2); }
.search-result-path { color: var(--text-dim); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-empty { padding: 10px 12px; color: var(--text-dim); font-size: 12px; }

/* 面包屑 */
#breadcrumbs {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 16px 8px; overflow-x: auto; white-space: nowrap;
}
.crumb-up {
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  width: 26px; height: 26px; border-radius: 8px; font-size: 15px; flex-shrink: 0;
}
.crumb-up:hover { color: var(--accent); border-color: var(--accent); }
.crumb-path { display: flex; align-items: center; gap: 6px; min-width: 0; }
.crumb {
  padding: 3px 10px; border-radius: 999px; font-size: 12.5px;
  background: var(--panel-2); border: 1px solid transparent; color: var(--text-dim); cursor: pointer;
}
.crumb:hover { color: var(--accent); border-color: var(--accent); }
.crumb.current {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; font-weight: 700;
}
.crumb-sep { color: var(--text-dim); font-size: 12px; }
.crumb-ellipsis { color: var(--text-dim); font-size: 13px; letter-spacing: 1px; }

/* 画布 */
.canvas-wrap { flex: 1; position: relative; overflow: auto; display: flex; }
#mermaid-container {
  margin: auto; padding: 30px 40px 40px;
  min-width: 100%; display: flex; align-items: center; justify-content: center;
}
#mermaid-container svg { max-width: 100%; height: auto; display: block; }
#mermaid-container svg text { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; }
.render-error { color: #ff6b6b; font-size: 14px; padding: 20px; }

/* ============ Mermaid 节点修复（防 foreignObject 消失） ============ */
#mermaid-container .node rect,
#mermaid-container .node circle,
#mermaid-container .node text,
#mermaid-container .mindmap-node path,
#mermaid-container .mindmap-node rect,
#mermaid-container .mindmap-node circle,
#mermaid-container .mindmap-node text {
  opacity: 1 !important;
  display: inline-block !important;
}
#mermaid-container .node text,
#mermaid-container .mindmap-node text { fill: #ffffff !important; }

/* 连线颜色：Mermaid mindmap 默认生成纯黑连线，深色下不可见，强制覆盖为固定蓝灰（深浅模式一致）。
 * 线宽不在此处覆盖：由 js/app.js 后处理按 edge-depth-*（父节点层级）
 * 显式注入锥形线宽 14/8/4.5px（内联 !important），此处任何线宽规则都会干扰它。 */
#mermaid-container .mindmap-edges .edge,
#mermaid-container g.mindmap-edges .edge,
#mermaid-container g.mindmap-edges path.edge {
  stroke: #9aa7bd !important;
  fill: none !important;
}
/* 节点无边框线：所有形状（rect/circle/path/ellipse/polygon）默认、hover、
 * 可下钻发光状态都去掉可见描边，只保留填充与呼吸外发光。 */
#mermaid-container .node rect, #mermaid-container .node circle, #mermaid-container .node path, #mermaid-container .node ellipse, #mermaid-container .node polygon,
#mermaid-container .mindmap-node rect, #mermaid-container .mindmap-node circle, #mermaid-container .mindmap-node path, #mermaid-container .mindmap-node ellipse, #mermaid-container .mindmap-node polygon {
  stroke: none !important;
}

/* 节点交互 */
#mermaid-container g.mindmap-node { cursor: pointer; }

/* ============ 第3层「仍有子节点」发光 ============
 * 呼吸 = 只呼吸外发光，不改节点透明度：整块节点忽明忽暗会让文字可读性抖动，
 * 也和纯色块的克制感冲突。文字自身被强制 opacity:1，节点层再叠透明度会双重衰减。
 * 光晕色由 app.js 在每个节点上注入的 --glow 决定（取自当前主题 L1 亮端），
 * 没注入时回退到经典的霓虹青 #00e5ff。 */
@keyframes glowPulse {
  0%, 100% { filter: drop-shadow(0 0 2px var(--glow, #00e5ff)); }
  50%      { filter: drop-shadow(0 0 14px var(--glow, #00e5ff)); }
}
#mermaid-container g.mindmap-node.has-more-glowing rect,
#mermaid-container g.mindmap-node.has-more-glowing circle,
#mermaid-container g.mindmap-node.has-more-glowing path,
#mermaid-container g.mindmap-node.has-more-glowing ellipse,
#mermaid-container g.mindmap-node.has-more-glowing polygon {
  animation: glowPulse 1.7s ease-in-out infinite;
}

/* ============ CSS View Transitions ============ */
::view-transition-group(vt-target) {
  animation-duration: .62s;
  animation-timing-function: cubic-bezier(.22, .9, .26, 1);
  animation-fill-mode: both;
}
::view-transition-old(vt-target) { animation: vtTargetOut .28s ease-in both; }
::view-transition-new(vt-target) { animation: vtTargetIn .5s cubic-bezier(.22, .9, .26, 1) both; }
@keyframes vtTargetOut { from { opacity: 1; } to { opacity: .25; } }
@keyframes vtTargetIn  { from { opacity: 0; transform: scale(.88); } to { opacity: 1; transform: scale(1); } }

::view-transition-old(root) { animation: vtRootOut .22s ease-in both; }
::view-transition-new(root) { animation: vtRootIn  .46s cubic-bezier(.22, .9, .26, 1) both; }
@keyframes vtRootOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes vtRootIn  { from { opacity: .15; } to { opacity: 1; } }

/* ============ 底部提示 ============ */
#hint {
  height: var(--hint-h); display: flex; align-items: center; justify-content: center;
  gap: 18px;
  font-size: 13px; color: var(--text-dim); letter-spacing: .5px;
  border-top: 1px solid var(--border); background: var(--bg-soft);
  user-select: none; padding: 0 16px;
}
#hint .footer-license { font-size: 11px; opacity: .75; white-space: nowrap; }
#hint .footer-license a { color: var(--text-dim); text-decoration: underline; }
#hint .footer-license a:hover { color: var(--text-main); }

/* ============ 全局微缩地图 ============ */
#minimap-box {
  position: fixed; right: 16px; bottom: calc(var(--hint-h) + 16px);
  width: 200px; height: 150px; z-index: 25;
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 8px 24px var(--shadow); padding: 6px;
  backdrop-filter: blur(6px);
  cursor: pointer;
}
#minimap { width: 100%; height: 100%; display: block; }

/* ============ 弹窗 / Toast ============ */
.modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0, 0, 0, .55); display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(3px);
}
.modal[hidden] { display: none; }
.modal-card {
  width: min(640px, 90vw); max-height: 80vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 20px 60px var(--shadow);
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border); font-size: 15px;
}
.modal-close { border: none; background: none; color: var(--text-dim); font-size: 20px; }
.modal-close:hover { color: var(--accent); }
.modal-body { padding: 16px 18px; font-size: 13px; }
.help-table { width: 100%; border-collapse: collapse; }
.help-table td { padding: 6px 8px; border-bottom: 1px dashed var(--border); }
.help-table td:first-child { color: var(--accent); font-weight: 600; white-space: nowrap; width: 40%; }
.help-note { color: var(--text-dim); margin-top: 12px; }

.toast {
  position: fixed; bottom: calc(var(--hint-h) + 60px); left: 50%; transform: translateX(-50%);
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  border-radius: 999px; padding: 9px 20px; font-size: 13px; z-index: 200;
  box-shadow: 0 10px 30px var(--shadow);
  animation: toastIn .25s ease-out;
}
.toast.warn { border-color: #ffb020; color: #ffb020; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* 小屏适配 */
@media (max-width: 760px) {
  #minimap-box { width: 140px; height: 105px; right: 8px; }
  .tb-link { display: none; }
  .search-wrap { width: 94%; }
  body.editor-open #editor-panel { width: 55%; }
}