/* 檔案檢視頁：行號、行跳轉、目標行高亮與語法上色。主題與共用元件在 theme.css。 */
.appbar .spacer { flex: 1 }
.appbar #jump { width: 92px }
.wrap { height: calc(100vh - 53px); overflow: auto }
#src {
  margin: 0; padding: 6px 0 40px;
  font: 13px/1.55 ui-monospace, Consolas, "Courier New", monospace;
  white-space: pre; min-width: max-content;
}
#src .ln { display: block; padding: 0 16px 0 0 }
#src .ln:hover { background: var(--line2) }
#src .ln:target, #src .ln.hit { background: rgba(245, 158, 11, .24) }
#src .no {
  color: var(--mut); text-decoration: none; display: inline-block;
  width: 4.6em; text-align: right; margin-right: 14px; user-select: none;
}
#src .no:hover { color: var(--accent) }

@media (max-width: 640px) { .appbar #name { max-width: 40vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap } }

/* Markdown 排版檢視（外框版面；內容樣式在 theme.css） */
.wrap > [hidden] { display: none }
.rendered { max-width: 920px; margin: 0 auto; padding: 22px 22px 64px; line-height: 1.75 }

/* 文件頁：桌面 sticky 側欄；手機用浮動按鈕開抽屜。 */
.doclayout { display: flex; justify-content: center; align-items: flex-start; gap: 28px; max-width: 1180px; margin: 0 auto; padding: 0 22px }
.docmain { flex: 1 1 auto; min-width: 0; width: 100%; max-width: 900px; padding: 22px 0 64px }
.docmain .rendered { max-width: none; margin: 0; padding: 0 }
.docmain .docmeta, .docmain .docnote { max-width: none; margin-left: 0; margin-right: 0; padding-left: 0; padding-right: 0 }
.doclayout.source { max-width: none; padding: 0 }
.doclayout.source .docmain { max-width: none; padding: 0 }
.docmeta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; margin: 0 0 8px; padding: 0 }
.docbadge { display: inline-flex; align-items: center; gap: 6px; color: var(--fg); text-decoration: none }
.docbadge .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--doc-color) }
.docbadge:hover { color: var(--accent) }
.docpath { color: var(--mut); font: 12.5px ui-monospace, Consolas, "Courier New", monospace }
.docnote { margin: 0 0 10px; padding: 0; font-size: 13px; color: var(--mut) }

.doctoc {
  flex: 0 0 220px; width: 220px; align-self: flex-start;
  position: sticky; top: var(--appbar-h, 53px);
  max-height: calc(100vh - var(--appbar-h, 53px) - 32px);
  overflow: auto; padding: 22px 0 16px; border-left: 1px solid var(--line);
}
.wrap .doctoc { top: 0; max-height: calc(100vh - 53px - 32px) }
.doctoc[hidden] { display: none }
.doctoc-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-left: 14px; margin-bottom: 8px; color: var(--mut); font-size: 12px; font-weight: 700 }
.doctoc-close { display: none; border: 0; background: none; color: var(--mut); cursor: pointer; font-size: 16px; line-height: 1; padding: 2px 6px }
.doctoc nav { display: flex; flex-direction: column; gap: 1px }
.doctoc a { display: block; padding: 4px 10px 4px 14px; border-left: 2px solid transparent; color: var(--mut); font-size: 13px; line-height: 1.45; text-decoration: none }
.doctoc a:hover, .doctoc a.active { color: var(--accent); background: var(--line2); border-left-color: var(--accent) }
.doctoc a.active { font-weight: 600 }
.doctoc .toc-h3 { padding-left: 26px; font-size: 12.5px }
.doctoc .toc-h4 { padding-left: 40px; font-size: 12px }

/* 手機：目錄抽屜＋浮動按鈕；原始碼模式不顯示。 */
.tocbtn { display: none; position: fixed; right: 16px; bottom: 16px; z-index: 30; align-items: center; border-radius: 999px; padding: 8px 14px; box-shadow: var(--shadow) }
.tocbtn[hidden] { display: none !important }
@media (max-width: 1099px) {
  .doclayout { display: block; padding: 0 16px }
  .docmain { max-width: none; padding: 0 0 56px }
  .doctoc, .wrap .doctoc {
    position: fixed; left: 16px; right: 16px; top: auto; bottom: 76px;
    width: auto; max-height: 60vh; padding: 12px 14px; z-index: 30;
    border: 1px solid var(--line); border-radius: 10px;
    background: var(--card); box-shadow: var(--shadow); display: none;
  }
  body.toc-open .doctoc:not([hidden]) { display: block }
  .doctoc-head { padding-left: 0 }
  .doctoc-close { display: inline-flex }
  .tocbtn { display: inline-flex }
}
@media (min-width: 1100px) { .tocbtn { display: none } }