/* ============================================================
   空瓶子题库 · 主题样式（咖啡暖棕 + 简洁）
   ============================================================ */

:root {
  --c-primary-dark: #6f4e37;
  --c-primary:      #a67c52;
  --c-primary-light:#f5e6d3;
  --c-accent:       #c8956d;
  --c-bg:           #faf6f1;
  --c-card:         #ffffff;
  --c-text-dark:    #3a2c1e;
  --c-text-mid:     #8a7a6a;
  --c-text-light:   #b8a99a;
  --c-border:       #e8dccb;
  --c-success:      #6b8e4e;
  --c-error:        #c75c5c;
  --c-warning:      #d99a2b;
  --radius:         12px;
  --shadow-sm:      0 1px 3px rgba(0,0,0,0.04);
  --shadow:         0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg:      0 8px 24px rgba(111,78,55,0.12);
  --maxw:           960px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;  /* iOS 防止自动缩放 */
  color: var(--c-text-dark);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ────── 顶栏 ────── */
.topbar {
  background: var(--c-card);
  border-bottom: 1px solid var(--c-border);
  padding: 12px 20px;
  display: flex; justify-content: space-between; align-items: center;
  position: sticky; top: 0; z-index: 100;
  box-shadow: var(--shadow-sm);
}
.brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 600; color: var(--c-primary-dark);
  font-size: 18px;
}
.brand-icon { font-size: 24px; }
.topbar-nav { display: flex; gap: 20px; }
.topbar-nav a { color: var(--c-text-dark); font-size: 14px; }
.topbar-nav a.logout { color: var(--c-text-mid); }
@media (max-width: 600px) {
  .topbar { padding: 10px 14px; }
  .brand-name { display: none; }
  .topbar-nav { gap: 12px; font-size: 13px; }
}

/* ────── 主容器 ────── */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 20px 60px;
  min-height: calc(100vh - 130px);
}

.site-footer {
  text-align: center; color: var(--c-text-light);
  padding: 20px; font-size: 12px;
}

/* ────── 卡片 ────── */
.card {
  background: var(--c-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

/* ────── 统计卡 ────── */
.stats-strip, .stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px; margin-bottom: 24px;
}
.stats-grid { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 600px) {
  .stats-strip, .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
.stat-card {
  background: var(--c-card);
  border-radius: var(--radius);
  padding: 16px; text-align: center;
  box-shadow: var(--shadow-sm);
}
.stat-num { font-size: 28px; font-weight: 600; color: var(--c-primary-dark); }
.stat-label { font-size: 12px; color: var(--c-text-mid); margin-top: 4px; }

/* ────── 章节 ────── */
.section { margin-bottom: 32px; }
.section h1, .section h2 { color: var(--c-primary-dark); margin-top: 0; }
.section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.lead { color: var(--c-text-mid); font-size: 15px; margin-bottom: 16px; }

/* ────── 领域卡片网格 ────── */
.domain-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.domain-card {
  background: var(--c-card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  display: block; color: inherit;
  transition: transform .15s, box-shadow .15s;
  position: relative;
}
.domain-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); text-decoration: none; }
.domain-icon { font-size: 36px; margin-bottom: 8px; }
.domain-name { font-size: 17px; font-weight: 600; color: var(--c-primary-dark); }
.domain-desc { font-size: 13px; color: var(--c-text-mid); margin: 4px 0 8px; min-height: 36px; }
.domain-meta { font-size: 12px; color: var(--c-text-light); display: flex; gap: 4px; }
.domain-role {
  position: absolute; top: 12px; right: 12px;
  font-size: 11px; padding: 2px 8px; border-radius: 10px;
  background: var(--c-primary-light); color: var(--c-primary-dark);
}
.role-admin { background: #f0d4a8; }
.role-super_owner { background: var(--c-accent); color: white; }

/* ────── 表单 ────── */
.form-page { max-width: 720px; margin: 0 auto; }
.back { color: var(--c-text-mid); font-size: 14px; }
.form-block label {
  display: block; margin-bottom: 16px;
}
.form-block label > span {
  display: block; font-size: 13px; color: var(--c-text-dark);
  margin-bottom: 6px; font-weight: 500;
}
.form-block input[type=text], .form-block input[type=password], .form-block input[type=number],
.form-block select, .form-block textarea {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--c-border); border-radius: 8px;
  background: var(--c-card); font-size: 15px;
  font-family: inherit;
  transition: border-color .15s;
}
.form-block input:focus, .form-block select:focus, .form-block textarea:focus {
  outline: none; border-color: var(--c-primary);
}
.form-block textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 600px) { .form-row { grid-template-columns: repeat(2, 1fr); } }
.form-inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 12px; }
.form-inline input, .form-inline select { flex: 1; min-width: 100px; }
.icon-input { width: 60px; flex: 0 0 60px; }
.form-actions { display: flex; gap: 8px; margin-top: 16px; align-items: center; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; }

/* 选项编辑器 */
.option-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.option-row > span { width: 24px; text-align: center; font-weight: 600; color: var(--c-primary); }
.option-row input { flex: 1; }

/* ────── 按钮 ────── */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  background: var(--c-card);
  color: var(--c-text-dark);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
  transition: all .15s;
  min-height: 36px;
  text-align: center;
}
.btn:hover { background: var(--c-primary-light); text-decoration: none; }
.btn-primary { background: var(--c-primary-dark); color: white; border-color: var(--c-primary-dark); }
.btn-primary:hover { background: #5a3f2c; }
.btn-primary:disabled { background: var(--c-text-light); border-color: var(--c-text-light); cursor: not-allowed; }
.btn-danger { background: var(--c-error); color: white; border-color: var(--c-error); }
.btn-danger:hover { background: #a04545; }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--c-primary-light); }
.btn-block { display: block; width: 100%; }
.btn-sm { padding: 4px 10px; font-size: 12px; min-height: 28px; }
.btn-lg { padding: 12px 24px; font-size: 16px; min-height: 48px; }
.hint { font-size: 12px; color: var(--c-text-light); margin: 4px 0 0; }

/* ────── 认证页 ────── */
.auth-card {
  max-width: 380px; margin: 60px auto;
  background: var(--c-card); border-radius: var(--radius);
  padding: 40px 32px; box-shadow: var(--shadow-lg); text-align: center;
}
.auth-logo { font-size: 48px; margin-bottom: 12px; }
.auth-title { margin: 0 0 4px; color: var(--c-primary-dark); }
.auth-subtitle { color: var(--c-text-mid); margin: 0 0 24px; font-size: 14px; }
.auth-highlight { background: var(--c-primary-light); padding: 8px; border-radius: 8px; }
.auth-form { text-align: left; }
.auth-form label { display: block; margin-bottom: 16px; }
.auth-form label > span { display: block; font-size: 13px; margin-bottom: 6px; }
.auth-form input {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--c-border); border-radius: 8px;
  font-size: 15px; font-family: inherit;
}
.auth-foot { margin-top: 16px; font-size: 13px; color: var(--c-text-mid); }

/* ────── 领域详情 ────── */
.domain-header { margin-bottom: 16px; }
.domain-header h1 { display: flex; align-items: center; gap: 12px; margin: 8px 0 4px; }
.domain-icon-lg { font-size: 32px; }
.domain-desc-lg { color: var(--c-text-mid); margin: 0 0 16px; }

.tabs {
  display: flex; gap: 4px; margin-bottom: 20px;
  border-bottom: 2px solid var(--c-border);
  overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.tab {
  padding: 10px 16px; color: var(--c-text-mid);
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  white-space: nowrap; font-size: 14px;
}
.tab:hover { color: var(--c-primary-dark); text-decoration: none; }
.tab.active { color: var(--c-primary-dark); border-bottom-color: var(--c-primary-dark); font-weight: 500; }

/* ────── 知识条目列表 ────── */
.search-bar { display: flex; gap: 8px; margin-bottom: 16px; }
.search-bar input { flex: 1; padding: 10px 12px; border: 1px solid var(--c-border); border-radius: 8px; font-size: 15px; }
.item-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.item-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--c-card); border-radius: var(--radius);
  padding: 12px 16px; box-shadow: var(--shadow-sm); cursor: pointer;
}
.item-row:hover { background: #fdfaf6; }
.item-check { width: 18px; height: 18px; }
.item-body { flex: 1; min-width: 0; }
.item-title { font-weight: 500; color: var(--c-text-dark); }
.item-meta { font-size: 12px; color: var(--c-text-light); margin-top: 2px; }
.item-tags { display: inline-flex; flex-wrap: wrap; gap: 4px; margin: 2px 0; }
.item-actions { display: flex; gap: 4px; }
.tag { font-size: 11px; background: var(--c-primary-light); color: var(--c-primary-dark); padding: 2px 8px; border-radius: 10px; }

.bulk-bar {
  position: sticky; bottom: 12px;
  background: var(--c-card); padding: 12px 16px;
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  display: flex; justify-content: space-between; align-items: center;
  z-index: 50;
}

.pagination {
  display: flex; gap: 8px; align-items: center; justify-content: center;
  margin-top: 16px; font-size: 14px; color: var(--c-text-mid);
}

/* ────── 题目列表 ────── */
.filter-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.chip {
  padding: 4px 12px; border-radius: 16px;
  background: var(--c-card); color: var(--c-text-mid);
  font-size: 13px; border: 1px solid var(--c-border);
}
.chip:hover { background: var(--c-primary-light); text-decoration: none; }
.chip.active { background: var(--c-primary-dark); color: white; border-color: var(--c-primary-dark); }

.question-list { display: flex; flex-direction: column; gap: 8px; }
.question-row { background: var(--c-card); border-radius: var(--radius); padding: 12px 16px; box-shadow: var(--shadow-sm); }
.q-head { display: flex; gap: 6px; margin-bottom: 4px; }
.q-type { font-size: 11px; padding: 1px 6px; border-radius: 8px; background: var(--c-primary-light); color: var(--c-primary-dark); }
.q-type-single, .q-type-multiple, .q-type-judge { background: #e8d8c0; }
.q-type-short, .q-type-case { background: #f0d4a8; }
.q-diff { font-size: 11px; padding: 1px 6px; border-radius: 8px; }
.q-diff-easy { background: #d8e8d2; color: var(--c-success); }
.q-diff-medium { background: #f0e8d2; color: var(--c-warning); }
.q-diff-hard { background: #f0d2d2; color: var(--c-error); }
.q-tag { font-size: 11px; padding: 1px 6px; border-radius: 8px; background: var(--c-accent); color: white; }
.q-stem { color: var(--c-text-dark); margin: 4px 0; }
.q-foot { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--c-text-light); margin-top: 6px; }

/* ────── 自测模式卡片 ────── */
.quiz-modes { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.quiz-mode-card {
  background: var(--c-card); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 8px;
}
.quiz-mode-card h3 { margin: 0; color: var(--c-primary-dark); }
.quiz-mode-card label { font-size: 14px; color: var(--c-text-mid); display: flex; gap: 8px; align-items: center; }
.quiz-mode-card input { width: 80px; padding: 4px 8px; border: 1px solid var(--c-border); border-radius: 6px; }
.quiz-mode-card button { margin-top: auto; }

/* ────── 答题页 ────── */
.quiz-page { max-width: 720px; margin: 0 auto; }
.quiz-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.quiz-progress { flex: 1; }
.progress-bar { height: 6px; background: var(--c-border); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--c-primary-dark); transition: width .3s; }
.progress-bar.large { height: 12px; border-radius: 6px; }
.progress-text { font-size: 13px; color: var(--c-text-mid); margin-top: 4px; display: inline-block; }
.quiz-timer { font-size: 20px; font-weight: 600; color: var(--c-primary-dark); font-variant-numeric: tabular-nums; }
.quiz-timer.urgent { color: var(--c-error); animation: pulse 1s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

.quiz-body { padding: 32px 24px; }
.q-meta { display: flex; gap: 6px; margin-bottom: 12px; }
.q-stem-lg { font-size: 18px; line-height: 1.7; margin-bottom: 24px; color: var(--c-text-dark); }
.options { display: flex; flex-direction: column; gap: 10px; }
.option-card {
  display: flex; align-items: center; gap: 12px;
  background: var(--c-bg); border: 2px solid var(--c-border);
  border-radius: var(--radius); padding: 14px 16px; cursor: pointer;
  transition: all .15s;
}
.option-card:hover { border-color: var(--c-primary); background: var(--c-primary-light); }
.option-card input { width: 20px; height: 20px; accent-color: var(--c-primary-dark); }
.option-card input:checked + .option-label { color: var(--c-primary-dark); font-weight: 600; }
.option-card:has(input:checked) { border-color: var(--c-primary-dark); background: var(--c-primary-light); }
.option-label { font-weight: 600; min-width: 24px; color: var(--c-primary); }
.option-text { flex: 1; }

.quiz-textarea {
  width: 100%; padding: 12px; border: 1px solid var(--c-border);
  border-radius: 8px; font-family: inherit; font-size: 15px;
}
.quiz-actions { margin-top: 24px; text-align: right; }

.quiz-feedback { background: var(--c-primary-light); border-left: 4px solid var(--c-primary); }
.quiz-feedback .correct { color: var(--c-success); font-weight: 600; }
.quiz-feedback .wrong { color: var(--c-error); font-weight: 600; }
.ai-comment { color: var(--c-text-mid); font-size: 14px; }

/* ────── 结果页 ────── */
.result-header { text-align: center; }
.result-header h1 { color: var(--c-primary-dark); margin-top: 0; }
.result-score { margin: 20px 0; }
.big-score {
  font-size: 72px; font-weight: 700;
  color: var(--c-primary-dark); line-height: 1;
  font-variant-numeric: tabular-nums;
}
.score-label { font-size: 14px; color: var(--c-text-mid); }
.result-stats { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; color: var(--c-text-mid); font-size: 14px; }
.result-actions { display: flex; gap: 8px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }

.result-list { margin-top: 20px; }
.result-item { padding: 0; }
.result-item summary {
  display: flex; gap: 10px; align-items: center; padding: 12px 16px; cursor: pointer;
  list-style: none;
}
.result-item summary::-webkit-details-marker { display: none; }
.result-icon { width: 24px; height: 24px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; }
.result-icon.correct { background: var(--c-success); color: white; }
.result-icon.wrong { background: var(--c-error); color: white; }
.result-stem { flex: 1; }
.ai-score { background: var(--c-accent); color: white; padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.result-detail { padding: 0 16px 16px; border-top: 1px solid var(--c-border); margin-top: 4px; }
.result-line { margin: 8px 0; }
.ai-line { background: var(--c-primary-light); padding: 8px; border-radius: 6px; }

/* ────── 错题本 ────── */
.wrong-list { display: flex; flex-direction: column; gap: 12px; }
.wrong-item { padding: 16px; }
.wrong-count { background: #f0d2d2; color: var(--c-error); font-size: 11px; padding: 1px 6px; border-radius: 8px; }

/* 错题本：选项列表（正确答案高亮绿色） */
.q-options { margin: 12px 0; display: flex; flex-direction: column; gap: 6px; }
.q-option {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 8px;
  background: #faf6f1; border: 1px solid var(--c-border);
  font-size: 14px;
}
.q-option-key {
  width: 24px; height: 24px; border-radius: 50%;
  background: #fff; border: 1px solid var(--c-border);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 600; color: var(--c-primary); font-size: 12px; flex: 0 0 24px;
}
.q-option-text { flex: 1; line-height: 1.5; }
.q-option-correct {
  background: #e8f0d8; border-color: #b8d49a;
}
.q-option-correct .q-option-key {
  background: var(--c-success); color: white; border-color: var(--c-success);
}
.q-option-tag {
  font-size: 11px; padding: 2px 8px; border-radius: 10px;
  background: var(--c-success); color: white; font-weight: 600;
}
.q-short-answer {
  margin: 12px 0; padding: 10px 14px; border-radius: 8px;
  background: #e8f0d8; border: 1px solid #b8d49a;
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 14px;
}
.q-actions {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--c-border);
  align-items: center;
}

/* 错题本：AI 解析区 */
.wrong-analysis { margin-top: 12px; padding: 12px 14px;
  background: #fdf8ef; border-radius: 8px; border-left: 3px solid var(--c-primary);
  font-size: 14px; line-height: 1.7;
}
.wrong-analysis-loading { color: var(--c-text-mid); font-size: 13px; }
.wrong-analysis-error { color: var(--c-error); }
.wrong-analysis-body .analysis-line { margin: 6px 0; }
.wrong-analysis-body .analysis-line strong { color: var(--c-primary-dark); margin-right: 4px; }
.analysis-full {
  margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--c-border);
  white-space: pre-wrap; color: var(--c-text-dark);
}
.cache-tag {
  display: inline-block; margin-left: 8px; font-size: 11px;
  padding: 1px 8px; border-radius: 8px;
  background: var(--c-primary-light); color: var(--c-primary-dark);
}
.knowledge-content {
  white-space: pre-wrap; line-height: 1.7; font-size: 15px;
  color: var(--c-text-dark);
  background: #faf6f1; padding: 12px; border-radius: 8px;
}

/* ────── AI 出题 ────── */
.selected-items { background: var(--c-primary-light); padding: 12px; border-radius: 8px; margin: 16px 0; }
.selected-items ul { margin: 4px 0 0 16px; padding: 0; }

/* ────── 表格 ────── */
.table { width: 100%; border-collapse: collapse; background: var(--c-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.table th, .table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--c-border); }
.table th { background: var(--c-primary-light); font-size: 13px; color: var(--c-primary-dark); }
.role-tag { font-size: 11px; padding: 2px 8px; border-radius: 8px; background: var(--c-primary-light); color: var(--c-primary-dark); }
.role-tag.role-super_owner { background: var(--c-accent); color: white; }
.role-tag.role-admin { background: #f0d4a8; }
.role-tag.role-learner { background: #e8dccb; color: var(--c-text-mid); }

/* ────── 闪条消息 ────── */
.flash {
  padding: 10px 14px; border-radius: 8px; margin-bottom: 16px;
  font-size: 14px;
}
.flash-info { background: var(--c-primary-light); color: var(--c-primary-dark); border-left: 3px solid var(--c-primary); }
.flash-error { background: #f5d8d8; color: var(--c-error); border-left: 3px solid var(--c-error); }

/* ────── 空状态 ────── */
.empty-state {
  text-align: center; padding: 60px 20px; color: var(--c-text-mid);
  background: var(--c-card); border-radius: var(--radius);
}
.empty-state p { margin: 0; }

/* ────── 杂项 ────── */
.hidden { display: none !important; }
.text-center { text-align: center; }
.domain-summary { list-style: none; padding: 0; }
.domain-summary li { padding: 8px 0; border-bottom: 1px solid var(--c-border); }
.me-card { text-align: center; padding: 32px; }
.me-name { font-size: 24px; font-weight: 600; color: var(--c-primary-dark); }
.me-username { color: var(--c-text-mid); margin: 4px 0 8px; }
.me-progress { padding: 20px; }

/* ────── 滑动删除按钮（答题烂题一键换题） ────── */
.swipe-delete-wrap {
  margin-top: 16px; padding: 0 4px;
  user-select: none; -webkit-user-select: none;
  touch-action: none;  /* 关键：禁止整块被默认滚动抢走手势 */
}
.swipe-delete-label {
  text-align: center; font-size: 12px; color: var(--c-text-light);
  margin-bottom: 6px;
}
.swipe-delete-track {
  position: relative; height: 48px;
  background: #f0d2d2; border-radius: 24px;
  border: 1px solid #d8a8a8;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(199, 92, 92, 0.15);
  touch-action: none;  /* 关键：禁止轨道被浏览器默认滚动/返回手势处理 */
}
.swipe-delete-handle {
  position: absolute; top: 2px; left: 2px;
  width: 44px; height: 44px;
  background: var(--c-error); color: white;
  border-radius: 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; cursor: grab;
  z-index: 2;
  box-shadow: 0 2px 6px rgba(199, 92, 92, 0.3);
  transition: transform .25s;
  touch-action: none;             /* 关键：禁止 handle 触发系统手势 */
  user-select: none; -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-tap-highlight-color: transparent;
}
.swipe-delete-handle:active { cursor: grabbing; }
.swipe-delete-text {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: var(--c-error); font-weight: 500;
  pointer-events: none; z-index: 1;
  letter-spacing: 0.5px;
  user-select: none;
}

/* ────── 移动端微调 ────── */
@media (max-width: 600px) {
  .container { padding: 16px 14px 40px; }
  .card { padding: 16px; }
  .domain-header h1 { font-size: 20px; }
  .q-stem-lg { font-size: 16px; }
  .big-score { font-size: 56px; }
  .quiz-body { padding: 20px 16px; }
  .item-row { padding: 10px 12px; }
  .form-inline { flex-direction: column; align-items: stretch; }
  .form-inline input, .form-inline select { width: 100%; }
}