/* 認證教師專區 — 版型（引 tokens.css 變數；只管本專區不動舊頁） */
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg-soft); color: var(--fg);
  font-family: var(--font-sans); line-height: 1.75; font-size: 16px;
}

/* ── masthead（沿用工具頁視覺語彙） ── */
.masthead {
  display: flex; align-items: center; gap: 18px;
  max-width: 1080px; margin: 0 auto; padding: 22px 20px 14px;
}
.masthead .logo { height: 56px; width: auto; }
.masthead h1 { font-family: var(--font-han); font-size: 26px; margin: 0; color: var(--tbsa-crimson); }
.masthead .sub { margin: 2px 0 0; color: var(--fg-soft); font-size: 14px; }
.masthead .backlink { color: var(--tbsa-gold-dk); font-size: 13px; text-decoration: none; font-weight: 700; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px 60px; }

/* ── 登入狀態列 ── */
.statusbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--tbsa-paper); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 10px 16px; margin: 8px 0 20px; font-size: 14px; color: var(--fg-soft);
}
.statusbar .btn {
  display: inline-block; background: var(--tbsa-crimson); color: #fff; text-decoration: none;
  padding: 6px 16px; border-radius: var(--r-sm); font-weight: 700; font-size: 14px;
}
.statusbar .btn:hover { background: var(--tbsa-crimson-dk); }

/* ── 目錄頁：分類與卡片 ── */
.cat-title {
  font-family: var(--font-han); color: var(--tbsa-crimson); font-size: 20px;
  margin: 28px 0 12px; padding-bottom: 6px; border-bottom: 2px solid var(--tbsa-gold);
}
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.card {
  display: block; background: var(--tbsa-paper); border: 1px solid var(--line);
  border-radius: var(--r-md); padding: 16px 18px; text-decoration: none; color: var(--fg);
  box-shadow: var(--shadow-1); transition: box-shadow .15s, transform .15s;
}
.card:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); }
.card .card-title { font-weight: 700; font-size: 16px; margin: 0 0 6px; }
.card.locked { opacity: .62; }
.card.locked:hover { transform: none; box-shadow: var(--shadow-1); }
.badge {
  display: inline-block; font-size: 12px; font-weight: 700; border-radius: 999px;
  padding: 1px 10px; margin-bottom: 8px; letter-spacing: .04em;
}
.badge.public { background: #EDF3EA; color: #3D6B35; }
.badge.seed { background: #F5EBD8; color: var(--tbsa-gold-dk); }
.badge.watermark { background: #F7E3E3; color: var(--tbsa-crimson-dk); }
.locked-hint { font-size: 13px; color: var(--fg-soft); margin: 6px 0 0; }

/* ── 閱讀頁 ── */
.doc-layout { display: grid; grid-template-columns: 240px 1fr; gap: 24px; align-items: start; }
.toc {
  position: sticky; top: 16px; background: var(--tbsa-paper); border: 1px solid var(--line);
  border-radius: var(--r-md); padding: 8px 14px; font-size: 14px; max-height: 82vh; overflow-y: auto;
}
.toc summary { cursor: pointer; font-weight: 700; color: var(--tbsa-crimson); padding: 6px 0; }
.toc a { display: block; color: var(--fg-soft); text-decoration: none; padding: 3px 0; }
.toc a.lv3 { padding-left: 14px; font-size: 13px; }
.toc a:hover { color: var(--tbsa-crimson); }

.doc-body {
  background: var(--tbsa-paper); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 32px 40px; box-shadow: var(--shadow-1); min-width: 0; position: relative;
}
.doc-body h1 { font-family: var(--font-han); color: var(--tbsa-crimson); font-size: 26px; line-height: 1.4; margin: 0 0 16px; }
.doc-body h2 {
  font-family: var(--font-han); color: var(--tbsa-crimson); font-size: 21px;
  margin: 32px 0 10px; padding-bottom: 4px; border-bottom: 1px solid var(--line);
}
.doc-body h3 { font-size: 17px; color: var(--tbsa-ink-2); margin: 22px 0 8px; }
.doc-body h4 { font-size: 16px; color: var(--tbsa-ink-2); margin: 18px 0 6px; }
.doc-body blockquote {
  margin: 14px 0; padding: 10px 18px; border-left: 4px solid var(--tbsa-gold);
  background: var(--tbsa-parchment); border-radius: var(--r-sm); color: var(--tbsa-ink-2);
}
.doc-body code {
  background: var(--tbsa-parchment); border: 1px solid var(--line); border-radius: var(--r-xs);
  padding: 1px 6px; font-size: 14px;
}
.doc-body pre {
  background: var(--tbsa-ink); color: #F3EFE7; padding: 14px 18px; border-radius: var(--r-md);
  overflow-x: auto; font-size: 14px; line-height: 1.6;
}
.doc-body pre code { background: none; border: none; color: inherit; padding: 0; }
.doc-body img { max-width: 100%; height: auto; border-radius: var(--r-sm); }
.doc-body hr { border: none; border-top: 1px solid var(--line); margin: 24px 0; }
.doc-body a { color: var(--tbsa-crimson); }

/* 表格：一律外包 .tbl-wrap 橫捲（md.js 產生） */
.tbl-wrap { overflow-x: auto; margin: 14px 0; }
.doc-body table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
.doc-body th {
  background: var(--tbsa-crimson); color: #fff; text-align: left;
  padding: 8px 12px; font-weight: 700; white-space: nowrap;
}
.doc-body td { padding: 8px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc-body tbody tr:nth-child(even) { background: var(--tbsa-parchment); }

/* ── 浮水印層（機密文件） ── */
.wm-notice {
  background: #F7E3E3; border: 1px solid var(--tbsa-crimson-lt); border-radius: var(--r-md);
  color: var(--tbsa-crimson-dk); font-size: 13.5px; padding: 8px 14px; margin: 0 0 16px;
}
.watermark-layer {
  position: fixed; inset: 0; pointer-events: none; z-index: 9; overflow: hidden;
  display: grid; grid-template-columns: repeat(4, 1fr); align-content: space-around;
  justify-items: center; gap: 60px 0;
}
.watermark-layer span {
  transform: rotate(-30deg); opacity: .08; font-size: 14px; font-weight: 700;
  color: var(--tbsa-ink); white-space: nowrap; user-select: none;
}
.doc-body.wm-protected { user-select: none; }

/* 禁列印：機密文件列印時只顯示遮蔽訊息 */
.print-blocked-msg { display: none; }
@media print {
  body.wm-mode .doc-layout, body.wm-mode .masthead, body.wm-mode .statusbar, body.wm-mode .watermark-layer { display: none !important; }
  body.wm-mode .print-blocked-msg {
    display: block; font-size: 20px; font-family: var(--font-han); padding: 60px 40px; text-align: center;
  }
}

/* 頁尾 */
.foot { max-width: 1080px; margin: 0 auto; padding: 24px 20px; color: var(--fg-soft); font-size: 13px; }

/* ── RWD ── */
@media (max-width: 880px) {
  .doc-layout { grid-template-columns: 1fr; }
  .toc { position: static; max-height: none; }
  .doc-body { padding: 22px 20px; }
}
@media (max-width: 600px) {
  body { font-size: 15px; }
  .masthead { flex-direction: column; align-items: flex-start; gap: 8px; padding: 16px 16px 8px; }
  .masthead .logo { height: 44px; }
  .masthead h1 { font-size: 21px; }
  .wrap { padding: 0 12px 40px; }
  .doc-body { padding: 18px 14px; }
  .doc-body h1 { font-size: 22px; }
  .doc-body h2 { font-size: 19px; }
  .cards { grid-template-columns: 1fr; }
}