body {
  background:
    radial-gradient(circle at top, rgba(var(--accent-rgb), 0.14), transparent 34%),
    linear-gradient(180deg, #f8fbff 0%, #f2f6fb 100%);
}

html[data-quiz-preloaded-start="1"] #quizSetupPanel,
html[data-quiz-preloaded-start="1"] .quiz-lead {
  display: none;
}

.app.app-quiz {
  position: relative;
  --card-fixed-edge-gap: max(16px, calc(50% - var(--app-shell-half-width)));
  --top-nav-button-size: calc(38px + var(--app-font-size-offset, 0px));
  --top-nav-icon-size: calc(20px + var(--app-font-size-offset, 0px));
  --top-nav-radius: calc(12px + (var(--app-font-size-offset, 0px) / 2));
  --top-nav-top: calc(30px + var(--app-font-size-offset, 0px));
  --top-nav-side-offset: calc(8px + (var(--app-font-size-offset, 0px) / 2));
}

.app.app-quiz .top-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 12px;
  min-width: 0;
  margin-top: calc(30px + var(--app-font-size-offset, 0px));
  min-height: var(--top-nav-button-size);
}

.top-row > .title-wrap {
  margin-left: 8px;
  min-width: 0;
}

.title-wrap {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  min-width: 0;
}

.top-nav-link {
  width: var(--top-nav-button-size);
  min-height: var(--top-nav-button-size);
  border: none;
  border-radius: var(--top-nav-radius);
  background: rgba(255, 255, 255, 0.85);
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--accent);
  text-decoration: none;
}

.top-nav-link:hover {
  background: rgba(var(--accent-rgb), 0.10);
}

.top-nav-link svg {
  width: var(--top-nav-icon-size);
  height: var(--top-nav-icon-size);
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}


.back-nav-button {
  position: fixed;
  top: var(--top-nav-top);
  left: calc(var(--card-fixed-edge-gap) + var(--top-nav-side-offset));
  z-index: 20;
}

.quiz-lead {
  margin: 6px 0 18px;
  color: var(--muted);
  font-size: 14px;
}

.quiz-panel {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid rgba(var(--accent-rgb), 0.14);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 40px rgba(31, 51, 72, 0.08);
}

.quiz-panel-title {
  margin: 0 0 14px;
  font-size: 20px;
  color: var(--text);
}

.quiz-source-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.quiz-settings-card {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  border-radius: 16px;
  background: transparent;
}

.quiz-settings-group + .quiz-settings-group {
  margin-top: 16px;
}

.quiz-settings-title {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
}

.quiz-tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quiz-tag-filter-wrap {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  width: 100%;
  min-width: 0;
}

.quiz-selected-tags {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.quiz-tag-selected-chip {
  border: 1px solid #8a9bb0;
  background: transparent;
  color: var(--accent);
  border-radius: 10px;
  padding: 4px 10px;
  min-height: calc(24px + var(--app-font-size-offset, 0px));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
  cursor: pointer;
  touch-action: manipulation;
}

.quiz-tag-selected-chip:hover {
  background: rgba(var(--accent-rgb), 0.08);
}

.quiz-tag-toggle-btn {
  border: none;
  background: none;
  color: #8a9bb0;
  border-radius: 10px;
  min-height: 28px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  flex: 0 0 auto;
}

.quiz-tag-toggle-btn:hover {
  background: rgba(var(--accent-rgb), 0.08);
}

.quiz-tag-toggle-btn.active {
  color: var(--accent-dark);
}

.quiz-tag-filter-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  width: min(320px, calc(100vw - 24px));
  min-width: min(240px, calc(100vw - 24px));
  max-width: calc(100vw - 24px);
  box-sizing: border-box;
  max-height: min(260px, calc(100vh - 24px));
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
  border: 1px solid rgba(var(--accent-rgb), 0.16);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 14px 28px rgba(20, 42, 62, 0.14);
  padding: 6px;
  z-index: 30;
}

.quiz-tag-filter-dropdown[hidden] {
  display: none;
}

.quiz-tag-filter-marks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.quiz-tag-chip {
  width: 100%;
  min-height: 38px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  padding: 7px 10px;
  box-sizing: border-box;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: normal;
  overflow-wrap: break-word;
  word-break: break-word;
  line-height: 1.25;
}

.quiz-tag-chip:hover {
  background: rgba(var(--accent-rgb), 0.08);
}

.quiz-tag-chip.active {
  color: var(--accent-dark);
  background: rgba(var(--accent-rgb), 0.10);
}

.quiz-tag-filter-empty {
  margin: 0;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 13px;
}

.quiz-marks {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  padding: 0;
  flex: 1 1 auto;
  min-width: 0;
}

.app.app-quiz .mark-btn {
  border: none;
  background: transparent;
  padding: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  cursor: pointer;
}

.quiz-count-stepper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quiz-count-stepper-button {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.quiz-count-stepper-button:disabled {
  opacity: 0.45;
  cursor: default;
}

.quiz-count-value {
  margin: 0;
  min-width: 56px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--accent-dark);
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.quiz-source-option {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 56px;
  padding: 12px 14px;
  border: 1px solid rgba(var(--accent-rgb), 0.14);
  border-radius: 14px;
  background: rgba(var(--accent-rgb), 0.05);
  cursor: pointer;
}

.quiz-source-option:has(input:checked) {
  border-color: rgba(var(--accent-rgb), 0.42);
  background: rgba(var(--accent-rgb), 0.12);
}

.quiz-source-option input {
  margin: 0;
}

.quiz-source-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.quiz-actions-row {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.quiz-primary-btn,
.quiz-secondary-btn,
.quiz-secondary-link {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.quiz-primary-btn {
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 1) 0%, rgba(var(--accent-rgb), 0.78) 100%);
}

.quiz-primary-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.quiz-secondary-btn,
.quiz-secondary-link {
  border: 1px solid rgba(var(--accent-rgb), 0.2);
  background: #fff;
  color: var(--accent-dark);
}

.quiz-history-count-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 12px 12px 0;
  color: var(--muted, #63798f);
  font-size: 12px;
  font-weight: 700;
  text-align: left;
}

.quiz-history-count-summary[hidden] {
  display: none !important;
}

.quiz-status {
  margin: 14px 0 0;
  min-height: 22px;
  color: var(--muted);
  font-size: 14px;
}

.quiz-status.is-error {
  color: #bb3e32;
}

.quiz-progress-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.quiz-progress,
.quiz-question-meta,
.quiz-selection-hint {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.quiz-word {
  margin: 0;
  font-size: 30px;
  color: var(--text);
}

.quiz-prompt {
  margin: 10px 0 0;
  font-size: 16px;
  color: var(--text);
}

.quiz-selection-hint {
  margin-top: 8px;
}

.quiz-options {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 0;
  padding: 14px 16px;
  border: 1px solid rgba(var(--accent-rgb), 0.14);
  border-radius: 14px;
  background: #fff;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.quiz-option:has(input:checked) {
  border-color: rgba(var(--accent-rgb), 0.38);
  background: rgba(var(--accent-rgb), 0.12);
}

.quiz-option:has(input:focus-visible) {
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.16);
}

.quiz-option.is-correct {
  border-color: rgba(var(--accent-rgb), 0.38);
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--accent-dark);
}

.quiz-option.is-wrong {
  border-color: rgba(187, 62, 50, 0.28);
  background: rgba(187, 62, 50, 0.08);
  color: #b13a30;
}

.quiz-option input {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 0;
  min-width: 0;
  height: 0;
  margin: 0;
  border: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
}

.quiz-option-text {
  color: var(--text);
  line-height: 1.5;
}

.quiz-option.is-correct .quiz-option-text {
  color: var(--accent-dark);
}

.quiz-option.is-wrong .quiz-option-text {
  color: #b13a30;
}

.quiz-feedback {
  margin: 16px 0 0;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
}

.quiz-question-controls {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.quiz-feedback-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.quiz-feedback-actions .quiz-feedback {
  margin: 0;
  flex: 0 0 auto;
}

.quiz-question-actions {
  margin-top: 0;
  flex: 1 1 auto;
  justify-content: flex-end;
}

.quiz-question-secondary-actions {
  margin-top: 0;
  justify-content: flex-end;
}

.quiz-feedback.is-correct {
  background: rgba(43, 138, 62, 0.1);
  color: #287a3a;
}

.quiz-feedback.is-wrong {
  background: rgba(187, 62, 50, 0.1);
  color: #b13a30;
}

.quiz-result-summary {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 700;
}

.quiz-result-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.quiz-result-item {
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(var(--accent-rgb), 0.14);
  background: #fff;
}

.quiz-result-item.is-correct {
  border-color: rgba(43, 138, 62, 0.3);
}

.quiz-result-item.is-wrong {
  border-color: rgba(187, 62, 50, 0.24);
}

.quiz-result-item.is-unasked {
  border-color: rgba(154, 154, 154, 0.25);
  background: #f7f7f7;
}

.quiz-result-word,
.quiz-result-prompt,
.quiz-result-line {
  margin: 0;
}

.quiz-result-word {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.quiz-result-word-link {
  display: inline-block;
  text-decoration: none;
}

.quiz-result-word-link:hover,
.quiz-result-word-link:focus-visible {
  color: var(--accent-dark);
}

.quiz-result-prompt {
  margin-top: 6px;
  color: var(--text);
}

.quiz-result-line {
  margin-top: 8px;
  color: var(--muted);
}

.quiz-result-meaning {
  font-weight: 700;
}

.quiz-result-meaning.is-correct {
  color: var(--accent-dark);
}

.quiz-result-meaning.is-wrong {
  color: #b13a30;
}

.quiz-result-meaning.is-unasked {
  color: var(--text);
}

.quiz-result-label {
  font-weight: 700;
  color: var(--text);
}

.quiz-history-actions {
  justify-content: flex-end;
}

.quiz-history-grouped-result-list {
  margin-top: 12px;
}

@media (max-width: 720px) {
  .quiz-word {
    font-size: 24px;
  }

  .quiz-panel {
    padding: 16px;
  }

  .quiz-source-grid {
    grid-template-columns: 1fr;
  }

  .quiz-settings-card {
    padding: 13px;
  }

  .quiz-tag-label {
    min-width: 42px;
  }

  .quiz-count-stepper {
    justify-content: flex-start;
  }

  .quiz-progress-row {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
  }

  .quiz-progress {
    flex: 0 0 auto;
  }

  .quiz-question-meta {
    flex: 1 1 auto;
    text-align: right;
  }

  .quiz-actions-row {
    flex-direction: column;
  }

  .quiz-feedback-actions {
    align-items: stretch;
  }

  .quiz-question-actions {
    justify-content: stretch;
  }

  .quiz-question-secondary-actions {
    justify-content: stretch;
  }

  .quiz-primary-btn,
  .quiz-secondary-btn,
  .quiz-secondary-link {
    width: 100%;
  }
}