/* ================================================================
 * reader.css — 文件閱讀器樣式
 * 對應 reader.html(Markdown 渲染、黑板風格、列印友善)
 * ================================================================ */

body.reader-body {
  background: #f8f5ec;         /* 米白紙張感 */
  color: #1e3a2f;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.8;
}

/* ========== 頂端工具列 ========== */
.reader-topbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  background: #1e3a2f;        /* 黑板深綠 */
  color: #f4f1de;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  z-index: 100;
  flex-wrap: wrap;
  gap: 8px;
}

.reader-topbar-left,
.reader-topbar-right {
  display: flex;
  gap: 8px;
  align-items: center;
}

.reader-topbar-center {
  flex: 1 1 auto;
  text-align: center;
  font-weight: 600;
  font-size: 15px;
  color: #e9c46a;
  padding: 0 8px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  min-width: 140px;
}

.reader-back-btn,
.reader-home-btn,
.reader-tool-btn {
  background: #e9c46a;
  color: #1e3a2f;
  border: 2px solid #e9c46a;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  white-space: nowrap;
}

.reader-back-btn:hover,
.reader-home-btn:hover,
.reader-tool-btn:hover {
  background: #f4d37e;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.reader-home-btn {
  background: transparent;
  color: #f4f1de;
}

.reader-home-btn:hover {
  background: #2d6a4f;
  color: #e9c46a;
}

.reader-tool-btn {
  background: #2d6a4f;
  color: #f4f1de;
  border-color: #2d6a4f;
}

.reader-tool-btn:hover {
  background: #3a8761;
  color: #e9c46a;
}

/* ========== 內容區 ========== */
.reader-main {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

body.reader-wide .reader-main {
  max-width: 1180px;
}

.reader-content {
  background: #ffffff;
  border: 1px solid #e0d9c6;
  border-radius: 12px;
  padding: 48px 56px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  color: #1a1a1a;
  font-size: 16px;
  line-height: 1.85;
}

@media (max-width: 640px) {
  .reader-main { padding: 20px 12px 60px; }
  .reader-content { padding: 24px 20px; font-size: 15px; }
  .reader-topbar-center { flex-basis: 100%; order: -1; }
}

.reader-loading {
  text-align: center;
  color: #888;
  padding: 60px 20px;
  font-size: 16px;
}

.reader-error {
  background: #fbeaea;
  border-left: 4px solid #c44;
  padding: 16px 20px;
  color: #813333;
  border-radius: 4px;
  margin: 20px 0;
}

/* ========== Markdown 內容樣式 ========== */
.reader-content h1 {
  color: #1e3a2f;
  border-bottom: 3px solid #e9c46a;
  padding-bottom: 12px;
  margin: 0 0 28px;
  font-size: 28px;
  line-height: 1.3;
}

.reader-content h2 {
  color: #2d6a4f;
  border-bottom: 2px solid #d4c89a;
  padding-bottom: 8px;
  margin: 40px 0 18px;
  font-size: 23px;
}

.reader-content h3 {
  color: #1e3a2f;
  margin: 32px 0 14px;
  font-size: 19px;
  padding-left: 10px;
  border-left: 4px solid #e9c46a;
}

.reader-content h4 {
  color: #2d6a4f;
  margin: 24px 0 10px;
  font-size: 17px;
}

.reader-content p {
  margin: 14px 0;
  text-align: justify;
  text-justify: inter-ideograph;
}

.reader-content ul,
.reader-content ol {
  padding-left: 28px;
  margin: 14px 0;
}

.reader-content li {
  margin: 6px 0;
}

.reader-content strong {
  color: #1e3a2f;
  font-weight: 700;
  background: linear-gradient(transparent 60%, #fff2b8 60%);
  padding: 0 2px;
}

.reader-content em {
  color: #6a4e23;
  font-style: normal;
  font-weight: 500;
}

.reader-content code {
  background: #f4f1de;
  color: #8a4a10;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.92em;
  font-family: "JetBrains Mono", Consolas, "Courier New", monospace;
}

.reader-content pre {
  background: #1e3a2f;
  color: #f4f1de;
  padding: 18px 22px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.6;
}

.reader-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.reader-content blockquote {
  border-left: 5px solid #e9c46a;
  background: #faf6e6;
  margin: 18px 0;
  padding: 12px 20px;
  color: #5a4a2a;
  border-radius: 0 6px 6px 0;
}

.reader-content blockquote p:first-child { margin-top: 0; }
.reader-content blockquote p:last-child { margin-bottom: 0; }

.reader-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
  border: 1px solid #d4c89a;
  border-radius: 6px;
  overflow: hidden;
}

.reader-content th {
  background: #1e3a2f;
  color: #e9c46a;
  padding: 10px 14px;
  text-align: left;
  font-weight: 700;
  border: 1px solid #2d6a4f;
}

.reader-content td {
  padding: 9px 14px;
  border: 1px solid #e0d9c6;
  vertical-align: top;
}

.reader-content tr:nth-child(even) td {
  background: #faf6e6;
}

.reader-content hr {
  border: none;
  border-top: 2px dashed #d4c89a;
  margin: 32px 0;
}

.reader-content a {
  color: #2d6a4f;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.reader-content a:hover {
  color: #e76f51;
}

/* ========== 底部返回列 ========== */
.reader-footer-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
  padding: 24px;
  background: #f4f1de;
  border: 1px dashed #d4c89a;
  border-radius: 10px;
  flex-wrap: wrap;
}

/* 底部返回列專用覆寫 —
   .reader-home-btn 原本是為頂端深綠 topbar 設計(cream 文字 + 透明背景),
   但底部返回列的背景也是 cream #f4f1de,會造成文字隱形。
   因此在底部把它改成「深綠背景 + 金黃文字」的明顯樣式。*/
.reader-footer-nav .reader-home-btn {
  background: #1e3a2f;
  color: #e9c46a;
  border-color: #1e3a2f;
}
.reader-footer-nav .reader-home-btn:hover {
  background: #2d6a4f;
  color: #f4d37e;
}

/* ========== 目錄(自動產生)========== */
.reader-toc {
  background: #faf6e6;
  border: 1px solid #e0d9c6;
  border-left: 4px solid #e9c46a;
  padding: 16px 20px;
  margin: 0 0 30px;
  border-radius: 6px;
}

.reader-toc-title {
  font-weight: 700;
  color: #1e3a2f;
  margin-bottom: 8px;
  font-size: 15px;
}

.reader-toc ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
}

.reader-toc li {
  padding-left: 0;
}

.reader-toc li.toc-h3 { padding-left: 20px; font-size: 13px; color: #5a4a2a; }
.reader-toc li.toc-h4 { padding-left: 40px; font-size: 12.5px; color: #7a6a4a; }

.reader-toc a {
  color: #2d6a4f;
  text-decoration: none;
}

.reader-toc a:hover {
  color: #e76f51;
  text-decoration: underline;
}

/* ========== 頁內列印預覽浮層 ========== */
.print-modal {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #d8d4c0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  display: none;
}
.print-modal[data-open="1"] { display: block; }
.print-modal .pm-topbar {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #1e3a2f;
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
  font-family: "Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
}
.print-modal .pm-topbar-left { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.print-modal .pm-title { font-size: 14px; font-weight: 700; }
.print-modal .pm-hint { font-size: 12px; opacity: 0.85; }
.print-modal .pm-topbar-right { display: flex; gap: 8px; }
.print-modal .pm-btn {
  background: #e9c46a;
  color: #1e3a2f;
  border: 0;
  padding: 8px 16px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
}
.print-modal .pm-btn:hover { background: #f4d079; }
.print-modal .pm-btn-secondary {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
}
.print-modal .pm-btn-secondary:hover { background: rgba(255,255,255,0.1); }
.print-modal .pm-paper {
  max-width: 780px;
  margin: 24px auto;
  background: #fff;
  color: #222;
  padding: 40px 48px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  font-family: "Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  line-height: 1.85;
  font-size: 14px;
}
.print-modal .pm-paper .pr-header {
  border-bottom: 3px double #1e3a2f;
  padding-bottom: 10px;
  margin-bottom: 18px;
}
.print-modal .pm-paper .pr-header h1 {
  margin: 0 0 6px;
  font-size: 22px;
  color: #1e3a2f;
}
.print-modal .pm-paper .pr-meta { font-size: 12px; color: #666; }
.print-modal .pm-paper article h1 { font-size: 22px; color: #1e3a2f; margin: 20px 0 12px; }
.print-modal .pm-paper article h2 {
  font-size: 17px; color: #1e3a2f; margin: 18px 0 10px;
  padding-bottom: 5px; border-bottom: 2px solid #e9c46a;
}
.print-modal .pm-paper article h3 { font-size: 15px; color: #2d5a3f; margin: 14px 0 8px; }
.print-modal .pm-paper article h4 { font-size: 14px; color: #2d5a3f; margin: 12px 0 6px; }
.print-modal .pm-paper article p { margin: 0 0 10px; text-align: justify; }
.print-modal .pm-paper article ul,
.print-modal .pm-paper article ol { margin: 0 0 10px; padding-left: 22px; }
.print-modal .pm-paper article li { margin-bottom: 4px; }
.print-modal .pm-paper article blockquote {
  background: #f8f5e6;
  border-left: 4px solid #e9c46a;
  padding: 8px 12px;
  margin: 10px 0;
  border-radius: 3px;
  page-break-inside: avoid;
}
.print-modal .pm-paper article code {
  background: #f0f0ea;
  padding: 1px 5px;
  border-radius: 2px;
  font-family: Consolas,"Courier New",monospace;
  font-size: 13px;
}
.print-modal .pm-paper article pre {
  background: #f0f0ea;
  padding: 10px 14px;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 13px;
}
.print-modal .pm-paper article pre code { background: none; padding: 0; }
.print-modal .pm-paper article table {
  border-collapse: collapse;
  width: 100%;
  margin: 10px 0;
  font-size: 13px;
}
.print-modal .pm-paper article th,
.print-modal .pm-paper article td {
  border: 1px solid #999;
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
.print-modal .pm-paper article th { background: #e9c46a; color: #1e3a2f; font-weight: 700; }
.print-modal .pm-paper article a { color: #1e3a2f; text-decoration: underline; }
.print-modal .pm-paper article hr { border: 0; border-top: 1px solid #ccc; margin: 14px 0; }
.print-modal .pm-paper .pr-footer {
  margin-top: 20px;
  padding-top: 10px;
  border-top: 1px solid #ccc;
  font-size: 12px;
  color: #888;
  text-align: center;
}

/* ========== 列印(存為 PDF)樣式 ========== */
@media print {
  /* 直接 Ctrl+P(未開浮層)— 沿用原樣式 */
  body.reader-body:not(.pm-open) { background: #fff; }
  body.reader-body:not(.pm-open) .reader-topbar,
  body.reader-body:not(.pm-open) .reader-footer-nav { display: none !important; }
  body.reader-body:not(.pm-open) .reader-main { padding: 0; max-width: 100%; }
  body.reader-body:not(.pm-open) .reader-content {
    border: none;
    box-shadow: none;
    padding: 0;
    font-size: 11pt;
  }
  body.reader-body:not(.pm-open) .reader-content h1 { font-size: 20pt; page-break-after: avoid; }
  body.reader-body:not(.pm-open) .reader-content h2 { font-size: 15pt; page-break-after: avoid; margin-top: 20pt; }
  body.reader-body:not(.pm-open) .reader-content h3 { font-size: 13pt; page-break-after: avoid; }
  body.reader-body:not(.pm-open) .reader-content h4 { font-size: 11pt; page-break-after: avoid; }
  body.reader-body:not(.pm-open) .reader-content pre,
  body.reader-body:not(.pm-open) .reader-content blockquote,
  body.reader-body:not(.pm-open) .reader-content table { page-break-inside: avoid; }
  body.reader-body:not(.pm-open) .reader-content a { color: inherit; text-decoration: none; }
  body.reader-body:not(.pm-open) .reader-toc { page-break-after: always; }

  /* 浮層已開啟 — 只列印浮層紙張,隱藏其他所有東西 */
  @page { size: A4; margin: 18mm 16mm; }
  body.pm-open > *:not(.print-modal) { display: none !important; }
  body.pm-open { background: #fff !important; }
  body.pm-open .print-modal {
    position: static !important;
    background: #fff !important;
    overflow: visible !important;
    display: block !important;
  }
  body.pm-open .print-modal .pm-topbar { display: none !important; }
  body.pm-open .print-modal .pm-paper {
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    box-shadow: none !important;
    font-size: 11pt !important;
    line-height: 1.75 !important;
  }
  body.pm-open .print-modal .pm-paper .pr-header h1 { font-size: 18pt !important; }
  body.pm-open .print-modal .pm-paper article h1 { font-size: 20pt !important; page-break-after: avoid; }
  body.pm-open .print-modal .pm-paper article h2 { font-size: 15pt !important; page-break-after: avoid; margin-top: 20pt !important; }
  body.pm-open .print-modal .pm-paper article h3 { font-size: 13pt !important; page-break-after: avoid; }
  body.pm-open .print-modal .pm-paper article h4 { font-size: 11pt !important; page-break-after: avoid; }
  body.pm-open .print-modal .pm-paper article pre,
  body.pm-open .print-modal .pm-paper article blockquote,
  body.pm-open .print-modal .pm-paper article table { page-break-inside: avoid; }
}