/* 書籤庫面板 — 樣式（.bm- 命名空間，配合 main.css 紙感設計） */

.bm-panel { padding-top: 4px; max-width: 860px; margin: 0 auto; }

/* 打開書籤庫時，課堂列表讓位畀面板（同其他工具一致） */
body.bm-mode .lesson-list,
body.bm-mode .view-head { display: none; }

.bm-back {
  display: inline-block; margin: 4px 0 12px;
  font-family: var(--font-sans); font-size: 13px;
  color: var(--accent, #A83E2E); text-decoration: none;
}
.bm-back:hover { text-decoration: underline; }

.bm-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px; margin: 4px 0 20px;
}
.bm-stat {
  background: var(--paper-2, #F4EEE3);
  border-radius: var(--border-radius-md, 8px);
  padding: 12px 10px; text-align: center;
}
.bm-stat b {
  display: block; font-family: var(--font-serif); font-size: 24px; font-weight: 700;
  color: var(--accent, #A83E2E); line-height: 1.2;
}
.bm-stat span {
  display: block; margin-top: 3px;
  font-family: var(--font-sans); font-size: 11.5px;
  color: var(--ink-3, #6D6358); letter-spacing: .04em;
}

.bm-group { margin-bottom: 22px; }
.bm-gtitle {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-serif); font-size: 15px; font-weight: 700;
  color: var(--ink, #1F1B16); margin: 0 0 10px;
  padding-bottom: 7px; border-bottom: 1px solid var(--border, #E0D7C8);
}
.bm-gn {
  font-family: var(--font-sans); font-size: 11px; font-weight: 400;
  padding: 1px 8px; border-radius: 999px;
  background: var(--accent-pale, #F7E9E6); color: var(--accent, #A83E2E);
}

.bm-list { display: flex; flex-direction: column; gap: 8px; }

.bm-row { position: relative; }

.bm-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--border-radius-md, 8px);
  background: #FFFDF8; border: 1px solid var(--border, #E0D7C8);
  text-decoration: none; color: inherit;
  transition: border-color .16s, background .16s;
}
a.bm-item:hover { border-color: var(--accent, #A83E2E); background: var(--accent-pale, #F7E9E6); }

.bm-item-main { flex: 1; min-width: 0; }
.bm-item-head {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-bottom: 3px;
}
.bm-tag {
  font-family: var(--font-sans); font-size: 10.5px; letter-spacing: .04em;
  padding: 1.5px 8px; border-radius: 999px; white-space: nowrap;
  background: var(--paper-3, #E8E0D2); color: var(--ink-2, #4A4239);
}
.bm-tag--q { background: var(--accent-pale, #F7E9E6); color: var(--accent, #A83E2E); }
.bm-tag--f { background: #E1F5EE; color: #0F6E56; }
.bm-tag--n { background: #E6F1FB; color: #185FA5; }
.bm-topic {
  font-family: var(--font-sans); font-size: 11.5px; color: var(--ink-3, #6D6358);
}
.bm-text {
  margin: 0; font-family: var(--font-serif); font-size: 13.5px; line-height: 1.6;
  color: var(--ink, #1F1B16);
}

.bm-item-act { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.bm-go {
  font-family: var(--font-sans); font-size: 11.5px; cursor: pointer;
  padding: 5px 11px; border-radius: 999px;
  background: var(--paper-2, #F4EEE3);
  border: 1px solid var(--border, #E0D7C8);
  color: var(--ink-2, #4A4239); white-space: nowrap;
  transition: background .16s, border-color .16s, color .16s;
}
.bm-go:hover {
  background: var(--accent, #A83E2E);
  border-color: var(--accent, #A83E2E); color: #fff;
}
.bm-arrow { color: var(--ink-3, #6D6358); font-size: 14px; padding: 0 4px; }

.bm-del {
  width: 24px; height: 24px; line-height: 1; cursor: pointer;
  border-radius: 999px; font-size: 15px;
  background: transparent; border: 1px solid var(--border, #E0D7C8);
  color: var(--ink-3, #6D6358);
  transition: background .16s, color .16s, border-color .16s;
}
.bm-del:hover { background: #FCEBEB; border-color: #E24B4A; color: #A32D2D; }
.bm-del--row { position: absolute; right: 54px; top: 50%; transform: translateY(-50%); }

.bm-empty {
  margin: 0; padding: 14px 16px;
  font-family: var(--font-sans); font-size: 12.5px; line-height: 1.7;
  color: var(--ink-3, #6D6358);
  background: var(--paper-2, #F4EEE3);
  border: 1px dashed var(--border, #E0D7C8);
  border-radius: var(--border-radius-md, 8px);
}

.bm-foot { margin-top: 6px; text-align: right; }
.bm-clear {
  font-family: var(--font-sans); font-size: 11.5px; cursor: pointer;
  padding: 7px 14px; border-radius: 999px;
  background: transparent; border: 1px solid #E24B4A; color: #A32D2D;
  transition: background .16s, color .16s;
}
.bm-clear:hover { background: #E24B4A; color: #fff; }

@media (max-width: 560px) {
  .bm-stats { gap: 8px; }
  .bm-item { flex-wrap: wrap; }
  .bm-del--row { right: 8px; }
}