/* 从题库布置作业弹窗 */
.hw-qbank-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.hw-qbank-modal.hidden { display: none; }
.hw-qbank-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
}
.hw-qbank-modal__panel {
  position: relative;
  width: min(520px, 100%);
  max-height: calc(100vh - 12px);
  overflow: auto;
  background: var(--panel, #fffefb);
  border-radius: 16px;
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
  border: 1px solid var(--line, rgba(148, 163, 184, 0.35));
}
.hw-qbank-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line, #e2e8f0);
}
.hw-qbank-modal__head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink, #0f172a);
}
.hw-qbank-modal__close {
  border: none;
  background: transparent;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  color: var(--mute, #64748b);
}
.hw-qbank-modal__body { padding: 16px 20px; }
.hw-qbank-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--mute, #475569);
}
.hw-qbank-field input,
.hw-qbank-field select {
  height: 38px;
  border: 1px solid var(--line, #cbd5e1);
  border-radius: 10px;
  padding: 0 12px;
  font-size: 14px;
}
.hw-qbank-row {
  display: grid;
  grid-template-columns: 1fr 100px;
  gap: 12px;
}
.hw-qbank-hint {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mute, #64748b);
  margin: 0 0 12px;
}
.hw-qbank-preview {
  max-height: 180px;
  overflow: auto;
  border: 1px dashed var(--line, #cbd5e1);
  border-radius: 10px;
  padding: 10px;
  background: var(--search, #f8fafc);
}
.hw-qbank-preview-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  color: var(--ink, #334155);
  padding: 8px 0;
  border-bottom: 1px solid var(--line, #e2e8f0);
}
.hw-qbank-preview-item:last-child { border-bottom: none; }
.hw-qbank-preview-check { display: inline-flex; gap: 5px; flex: 0 0 auto; align-items: center; }
.hw-qbank-preview-check input[type="checkbox"] {
  accent-color: var(--accent, #ec4899);
}
.hw-qbank-preview-content { display: grid; gap: 4px; min-width: 0; flex: 1; }
.hw-qbank-preview-text { line-height: 1.45; }
.hw-qbank-preview-meta { display: flex; gap: 8px; align-items: center; }
.hw-qbank-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--soft, #fdf2f8);
  color: var(--accent-2, #db2777);
  font-size: 10px;
  font-weight: 700;
}
.hw-qbank-match {
  color: var(--mute, #64748b);
  font-size: 10px;
  font-weight: 700;
}
.hw-qbank-empty { font-size: 12px; color: var(--dim, #94a3b8); margin: 0; }
.hw-qbank-modal__foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px 20px 18px;
  border-top: 1px solid var(--line, #e2e8f0);
}
.hw-qbank-btn {
  height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
}
.hw-qbank-btn--ghost {
  background: var(--card, #fff);
  border-color: var(--line, #cbd5e1);
  color: var(--mute, #475569);
}
.hw-qbank-btn--secondary {
  background: var(--soft, #fdf2f8);
  color: var(--accent-2, #db2777);
}
.hw-qbank-btn--primary {
  background: var(--primary-btn, linear-gradient(135deg, #ec4899, #f59e0b));
  color: #fff;
}

/* 深色壳层沿用 Mercury 变量，保证弹窗内的文字、表单与预览仍可读。 */
[data-theme="dark"] .hw-qbank-modal__panel {
  /* 覆盖全局 [role="dialog"] 旧紫色兜底；本弹窗遵守 Mercury 中性层级。 */
  background: #1a1b23 !important;
  border-color: #2a2b36 !important;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.46);
}
[data-theme="dark"] .hw-qbank-modal__head,
[data-theme="dark"] .hw-qbank-modal__foot {
  border-color: #2a2b36;
}
[data-theme="dark"] .hw-qbank-modal__head h3 { color: #f4f4f5; }
[data-theme="dark"] .hw-qbank-modal__close { color: #cbd5e1; }
[data-theme="dark"] .hw-qbank-field { color: #cbd5e1; }
[data-theme="dark"] .hw-qbank-field input,
[data-theme="dark"] .hw-qbank-field select {
  background: #16171f;
  border-color: #343640;
  color: #f4f4f5;
}
[data-theme="dark"] .hw-qbank-field select option {
  background: #16171f;
  color: #f4f4f5;
}
[data-theme="dark"] .hw-qbank-hint { color: #aeb7c7; }
[data-theme="dark"] .hw-qbank-preview {
  background: #16171f;
  border-color: #343640;
}
[data-theme="dark"] .hw-qbank-preview-item {
  color: #f4f4f5;
  border-color: #2a2b36;
}
[data-theme="dark"] .hw-qbank-tag {
  background: rgba(123, 137, 244, 0.14);
  color: #9aa5f8;
}
[data-theme="dark"] .hw-qbank-match { color: #aeb7c7; }
[data-theme="dark"] .hw-qbank-empty { color: #aeb7c7; }
[data-theme="dark"] .hw-qbank-btn--ghost {
  background: #1e1f28;
  border-color: #343640;
  color: #f4f4f5;
}
[data-theme="dark"] .hw-qbank-btn--secondary {
  background: rgba(123, 137, 244, 0.14);
  color: #9aa5f8;
}
[data-theme="dark"] .hw-qbank-preview-check input[type="checkbox"] {
  accent-color: #7b89f4;
}