.duo-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px 16px;
  margin-top: 10px;
}

.duo-toolbar .tools-search {
  grid-column: 1;
  grid-row: 1;
  margin-top: 0;
}

.duo-side {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 6px;
}

.duo-toolbar-more {
  grid-column: 1 / -1;
  grid-row: 2;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.duo-toolbar-more-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 0;
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  font-weight: 800;
  color: var(--text-main, #0f172a);
}

.duo-toolbar-more-summary::-webkit-details-marker {
  display: none;
}

.duo-toolbar-more-summary::after {
  content: attr(data-open-label);
  flex: 0 0 auto;
  color: var(--text-sub, #64748b);
  font-size: 12px;
  font-weight: 800;
}

.duo-toolbar-more:not([open]) .duo-toolbar-more-summary::after {
  content: attr(data-closed-label);
}

.duo-toolbar-more-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px 16px;
  padding: 8px 0 0;
  border-top: 0;
}

.duo-lang {
  grid-column: 1;
  grid-row: 1;
  min-width: 180px;
}

.duo-lang-select {
  width: 100%;
  cursor: pointer;
}

.duo-count {
  margin-left: 0;
  padding-bottom: 0;
  color: var(--text-sub, #64748b);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.duo-diff-filters {
  grid-column: 1 / -1;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.duo-toggles {
  grid-column: 1 / -1;
  grid-row: 3;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
}

.duo-ban-intro {
  margin: 0 0 12px;
  color: var(--text-sub, #64748b);
  line-height: 1.7;
  font-size: 14px;
}

.duo-ban-legend {
  grid-column: 1 / -1;
  grid-row: 4;
  margin: 2px 0 0;
  color: var(--text-sub, #64748b);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.5;
}

.duo-filter {
  min-height: 28px;
  padding: 2px 12px;
  border: 1px solid var(--border-soft, #dbe3ec);
  border-radius: var(--ui-radius-pill, 999px);
  background: var(--bg-card, #fff);
  color: var(--text-main, #0f172a);
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.duo-filter:hover {
  background: var(--ui-surface-hover, #eef1f4);
}

.duo-filter.is-active {
  background: var(--ui-text, #161414);
  border-color: var(--ui-text, #161414);
  color: var(--ui-surface, #fff);
}

.duo-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  color: var(--text-main, #0f172a);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.duo-toggle.is-disabled {
  color: var(--text-sub, #64748b);
  cursor: default;
  opacity: 0.72;
  pointer-events: none;
}

.duo-toggle input {
  width: 16px;
  height: 16px;
}

.duo-toggle.is-disabled input {
  cursor: default;
}

.duo-table-wrap {
  overflow-x: auto;
  margin-top: 14px;
  border: 1px solid var(--border-soft, #dbe3ec);
  border-radius: 12px;
  background: var(--bg-card, #fff);
}

.duo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.duo-table th,
.duo-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--ui-border, #edf2f7);
  text-align: left;
  vertical-align: top;
  line-height: 1.45;
}

.duo-table th {
  position: sticky;
  top: 0;
  background: var(--ui-surface-subtle, #f8fafc);
  color: var(--text-sub, #334155);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.duo-table td[data-col="difficulty"] {
  width: 1%;
  white-space: nowrap;
  vertical-align: middle;
}

.duo-table tbody tr:last-child td {
  border-bottom: 0;
}

.duo-table tbody tr:hover td {
  background: var(--ui-surface-hover, #f8fafc);
}

.duo-diff-stack,
.duo-q-diff {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.duo-q-diff {
  display: none;
}

.duo-unavailable {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-height: 22px;
  padding: 1px 6px;
  border: 1px solid #e04444;
  border-radius: 8px;
  background: #ff5a5a;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.duo-table tbody tr.is-unavailable td {
  background: #fff1f1;
}

.duo-table tbody tr.is-unavailable:hover td {
  background: #ffe4e4;
}

.duo-table tbody tr.is-unavailable td.is-correct {
  background: #ffe8e0;
}

.duo-q-answers {
  display: none;
}

.duo-choice {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: 28px;
  padding: 4px 8px;
  border: 1px solid #ececec;
  border-radius: 10px;
  background: #fff;
  color: #4c4c4c;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  overflow-wrap: anywhere;
  box-shadow: 0 2px 0 #d0d0d0;
}

.duo-choice.is-correct {
  background: #b6ea4c;
  border-color: #98d63a;
  box-shadow: 0 2px 0 #7fb82c;
  color: #4c4c4c;
}

.duo-table td[data-col="answer1"],
.duo-table td[data-col="answer2"],
.duo-table td[data-col="answer3"] {
  color: #4c4c4c;
}

.duo-diff {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 22px;
  padding: 1px 8px;
  border: 1px solid #98d63a;
  border-radius: 8px;
  background: #b6ea4c;
  color: #4c4c4c;
  font-size: 11px;
  font-weight: 800;
  text-align: center;
  white-space: nowrap;
  box-shadow: none;
}

.duo-diff.is-easy {
  background: #b6ea4c;
  border-color: #98d63a;
  color: #4c4c4c;
}

.duo-diff.is-medium {
  background: #ffd84d;
  border-color: #e8c02a;
  color: #4c4c4c;
}

.duo-diff.is-difficult {
  background: #ff7a70;
  border-color: #e85d54;
  color: #4c4c4c;
}

.duo-table td.is-correct {
  background: var(--ui-success-soft, #ecfdf3);
  font-weight: 800;
}

.duo-table tbody tr:hover td.is-correct {
  background: var(--ui-success-soft, #dcfce7);
  filter: brightness(0.97);
}

.duo-status td {
  color: var(--text-sub, #64748b);
  font-weight: 700;
}

.duo-page.is-answers-only [data-col="difficulty"],
.duo-page.is-answers-only .duo-q-diff,
.duo-page.is-answers-only .duo-choice:not(.is-correct),
.duo-page.is-answers-only [data-col="answer1"],
.duo-page.is-answers-only [data-col="answer2"],
.duo-page.is-answers-only [data-col="answer3"] {
  display: none !important;
}

.duo-page.is-answers-only .duo-q-answers {
  display: flex;
  margin-top: 6px;
}

.duo-page.is-answers-only .duo-choice.is-correct {
  flex: 0 1 auto;
  width: auto;
  min-width: 4.5em;
}

.duo-page.is-answers-only .duo-table thead {
  display: none;
}

@media (max-width: 700px) {
  .duo-toolbar {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px 12px;
  }

  .duo-toolbar .tools-search {
    grid-column: 1;
    grid-row: 1;
  }

  .duo-side {
    grid-column: 2;
    grid-row: 1;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
  }

  .duo-toolbar-more {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .duo-toolbar-more-body {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .duo-lang,
  .duo-diff-filters,
  .duo-toggles,
  .duo-ban-legend {
    grid-column: 1;
  }

  .duo-lang {
    grid-row: auto;
    min-width: 0;
  }

  .duo-diff-filters {
    grid-row: auto;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
  }

  .duo-toggles {
    grid-row: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .duo-ban-legend {
    grid-row: auto;
  }

  .duo-toggle {
    display: inline-flex;
    padding: 0;
    font-size: 13px;
  }

  .duo-count {
    padding-bottom: 0;
  }

  .duo-filter {
    min-height: 40px;
    padding: 6px 4px;
    font-size: 12px;
  }

  .duo-table {
    font-size: 14px;
    table-layout: fixed;
  }

  .duo-table thead {
    display: none;
  }

  .duo-table th,
  .duo-table td {
    padding: 8px 10px;
  }

  .duo-table th[data-col="difficulty"],
  .duo-table td[data-col="difficulty"],
  .duo-table th[data-col="answer1"],
  .duo-table th[data-col="answer2"],
  .duo-table th[data-col="answer3"],
  .duo-table td[data-col="answer1"],
  .duo-table td[data-col="answer2"],
  .duo-table td[data-col="answer3"] {
    display: none;
  }

  .duo-q-diff {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
    white-space: nowrap;
  }

  .duo-q-answers {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: 6px;
    margin-top: 6px;
  }

  .duo-choice {
    flex: 1 1 0;
    min-width: 0;
    width: auto;
    min-height: 26px;
    padding: 3px 4px;
    font-size: 11px;
  }
}

.duo-quote-jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: -4px 0 12px;
  color: var(--text-main, #0f172a);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  scroll-margin-top: 90px;
}

.duo-quote-jump:hover {
  text-decoration: underline;
}

.duo-quote-jump-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex: 0 0 auto;
}

.duo-quotes {
  margin-top: 28px;
  padding-top: 8px;
  scroll-margin-top: 90px;
}

.duo-quotes-title {
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.duo-quotes-list {
  margin: 0;
  padding: 0 0 0 1.4em;
  color: var(--text-main, #0f172a);
  font-size: 14px;
  line-height: 1.7;
}

.duo-quotes-list li + li {
  margin-top: 6px;
}

.duo-back-top {
  display: inline-flex;
  margin-top: 16px;
  color: var(--text-main, #0f172a);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.duo-back-top:hover {
  text-decoration: underline;
}

#duo-top {
  scroll-margin-top: 90px;
}