/* ═══════════════════════════════════════
   工具库弹窗
   ═══════════════════════════════════════ */

/* 顶部按钮 */
.tools-lib-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #92400e;
  border: 1.5px solid #fbbf24;
  border-radius: 10px;
  font-size: 13px; font-weight: 800;
  cursor: pointer;
  margin-right: 10px;
  transition: all 0.15s;
}
.tools-lib-btn:hover {
  background: linear-gradient(135deg, #fde68a, #fbbf24);
  color: #78350f;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}
.tools-lib-btn svg { width: 16px; height: 16px; }

/* 弹窗：覆盖 base 的 modal-box 尺寸限制 */
.tools-lib-overlay.visible { display: grid; place-items: center; padding: 20px; }
.tools-lib-box {
  max-width: 1100px !important;
  width: 100%;
  max-height: 90vh;
  display: flex; flex-direction: column;
  border-radius: 16px;
  overflow: hidden;
}

/* 头部 */
.tools-lib-head {
  padding: 20px 24px;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  color: #fff;
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px;
}
.tools-lib-title {
  font-size: 20px; font-weight: 800; margin: 0;
  display: flex; align-items: center; gap: 8px;
}
.tools-lib-sub {
  font-size: 12px; opacity: 0.85; margin: 4px 0 0;
}
.tools-lib-close {
  width: 32px; height: 32px;
  background: rgba(255, 255, 255, 0.15);
  border: none; color: #fff;
  border-radius: 8px; cursor: pointer;
  font-size: 16px; font-weight: 700;
  transition: background 0.2s;
}
.tools-lib-close:hover { background: rgba(255, 255, 255, 0.3); }

/* 筛选区 */
.tools-lib-filters {
  padding: 14px 20px;
  background: #fafbfc;
  border-bottom: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 10px;
}
.tlf-search {
  position: relative;
  display: flex; align-items: center;
}
.tlf-search svg {
  position: absolute; left: 12px;
  color: var(--muted); pointer-events: none;
}
.tlf-search input {
  width: 100%; height: 40px;
  padding: 0 14px 0 38px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  background: #fff;
  outline: none;
  transition: border-color 0.15s;
}
.tlf-search input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

.tlf-row {
  display: flex; align-items: center; gap: 6px;
  flex-wrap: wrap;
}
.tlf-sep {
  width: 1px; height: 18px;
  background: var(--line);
  margin: 0 4px;
}
.tlf-chip {
  padding: 5px 12px; font-size: 12px; font-weight: 700;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.tlf-chip:hover { border-color: #cbd5e1; color: var(--ink); }
.tlf-chip.active {
  background: var(--brand); border-color: var(--brand); color: #fff;
}
.tlf-chip-classroom.active {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-color: #d97706;
}

.tlf-cats {
  display: flex; flex-wrap: wrap; gap: 5px;
}
.tlf-cat {
  padding: 4px 10px; font-size: 12px; font-weight: 600;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.tlf-cat:hover { border-color: var(--brand); color: var(--brand); }
.tlf-cat.active {
  background: var(--brand-light); color: var(--brand-dark);
  border-color: var(--brand);
  font-weight: 800;
}

/* 表格区 */
.tools-lib-body {
  flex: 1;
  overflow-y: auto;
  background: #fff;
}
.tools-table-wrap { padding: 4px; }
.tools-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tools-table thead {
  position: sticky; top: 0; z-index: 2;
  background: #f8fafc;
  box-shadow: 0 1px 0 var(--line);
}
.tools-table th {
  padding: 12px 14px;
  text-align: left;
  font-size: 12px; font-weight: 800;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--line);
  background: #f8fafc;
}
.tools-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: top;
  line-height: 1.5;
}
.tools-table tr:hover td {
  background: #fafbfc;
}

.col-name { width: 180px; }
.col-url { width: 220px; }
.col-strength { width: auto; }
.col-scenario { width: 280px; }

.row-name-wrap { display: flex; flex-direction: column; gap: 4px; }
.row-name-main { font-size: 15px; font-weight: 800; color: var(--ink); }
.row-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.row-tag {
  padding: 2px 8px;
  font-size: 10px; font-weight: 700;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.row-tag-cn { background: #fee2e2; color: #b91c1c; }
.row-tag-gl { background: #dbeafe; color: #1d4ed8; }
.row-tag-classroom {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
}
.row-tag-cat {
  background: #ecfdf5; color: #047857;
  border: 1px solid #6ee7b7;
  padding: 2px 8px;
  font-size: 11px; font-weight: 700;
  display: inline-block;
  margin-bottom: 4px;
}

.row-url {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--brand); text-decoration: none;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  font-size: 12px;
  max-width: 100%;
  word-break: break-all;
}
.row-url:hover { color: var(--brand-dark); text-decoration: underline; }
.row-url-text {
  display: inline-block;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.col-strength { color: #334155; }
.row-scenario-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.tools-empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* 底部 */
.tools-lib-foot {
  padding: 12px 20px;
  border-top: 1px solid var(--line);
  background: #fafbfc;
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px;
}
#toolsLibStat {
  font-size: 12px; color: var(--muted);
}
.tlf-actions {
  display: flex; gap: 8px;
}
.tlf-actions .btn {
  height: 36px; padding: 0 16px;
  font-size: 13px;
}

/* 响应式 */
@media (max-width: 768px) {
  .tools-lib-box { max-height: 96vh; }
  .tools-lib-head { padding: 14px 18px; }
  .tools-lib-title { font-size: 17px; }
  .tools-lib-filters { padding: 12px 14px; }

  .tools-table { font-size: 12px; }
  .tools-table th, .tools-table td { padding: 10px 8px; }
  .col-name { width: 130px; }
  .col-url { width: 140px; }
  .col-scenario { width: 180px; }
  .row-url-text { max-width: 110px; }

  .tools-lib-foot { flex-direction: column; align-items: stretch; }
}