body.unicode-page {
  color-scheme: light;
  /* テーマカラー */
  --unicode-page: #f3f6f9;
  --unicode-panel: #ffffff;
  --unicode-control: #f7f9fb;
  --unicode-text: #172033;
  --unicode-muted: #5d6b7d;
  --unicode-border: #cbd5e1;
  --unicode-border-strong: #aebaca;
  --unicode-primary: #086bd8;
  --unicode-primary-hover: #075bb6;
  --unicode-focus: #1473e6;
  --unicode-success: #087a45;
  --unicode-error: #b42318;
  --unicode-notice-bg: #e8f4ff;
  --unicode-notice-text: #07579e;
  --unicode-notice-border: #9dd5ff;
  --unicode-row-hover: #eef6ff;
  --unicode-row-selected: #dcecff;
  --unicode-code-bg: #edf2f7;
  --unicode-on-primary: #ffffff;

  /* 共通コンポーネント寸法 */
  --unicode-panel-gap: 14px;
  --unicode-control-height: 38px;
  --unicode-radius-panel: 10px;
  --unicode-radius-control: 6px;
  --unicode-radius-content: 7px;
  --unicode-radius-compact: 5px;
  --unicode-control-padding: 7px 10px;
  --unicode-button-padding: 7px 13px;
  --unicode-font-monospace: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --unicode-font-symbol: "Segoe UI Symbol", "Noto Sans Symbols 2", sans-serif;

  /* レスポンシブレイアウト値 */
  --unicode-lookup-columns: minmax(260px, 1fr) minmax(170px, 240px) auto;
  --unicode-filter-columns: minmax(300px, 1.5fr) minmax(160px, 0.6fr) minmax(160px, 0.6fr) minmax(300px, 1.3fr);
  --unicode-detail-columns: repeat(4, minmax(0, 1fr));
  --unicode-about-columns: repeat(2, minmax(0, 1fr));

  box-sizing: border-box;
  margin: 0;
  color: var(--unicode-text);
  background: var(--unicode-page);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

/* ダークテーマ */
.unicode-page[data-theme="dark"] {
  color-scheme: dark;
  --unicode-page: #0f141b;
  --unicode-panel: #161d26;
  --unicode-control: #202936;
  --unicode-text: #e6edf5;
  --unicode-muted: #aeb9c7;
  --unicode-border: #3a4656;
  --unicode-border-strong: #586577;
  --unicode-primary: #4da3ff;
  --unicode-primary-hover: #6bb3ff;
  --unicode-focus: #6cb6ff;
  --unicode-success: #68d391;
  --unicode-error: #ff8a80;
  --unicode-notice-bg: #122b42;
  --unicode-notice-text: #b9dcff;
  --unicode-notice-border: #315b7d;
  --unicode-row-hover: #202f40;
  --unicode-row-selected: #173a5f;
  --unicode-code-bg: #111821;
  --unicode-on-primary: #07111e;
}

/* ページ基盤 */
.unicode-page * {
  box-sizing: border-box;
}

.unicode-main {
  width: min(1500px, calc(100% - 32px));
  margin-block: 0;
  margin-inline: auto;
  padding-block: 26px 48px;
}

/* ページヘッダー */
.unicode-page-header {
  margin-block-end: 16px;
}

.unicode-title-row,
.unicode-panel-heading,
.unicode-result-bar {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.unicode-page-header h1 {
  margin-block: 8px 2px;
  margin-inline: 0;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.25;
}

.unicode-page-header p,
.unicode-panel-heading p {
  margin-block: 4px 0;
  margin-inline: 0;
  color: var(--unicode-muted);
}

.unicode-page .breadcrumb {
  display: flex;
  gap: 7px;
  align-items: center;
  font-size: 13px;
}

.unicode-page a {
  color: var(--unicode-primary);
}

/* パネルと注意書き */
.unicode-version {
  flex: 0 0 auto;
  padding: 5px 10px;
  border: 1px solid var(--unicode-border);
  border-radius: 999px;
  color: var(--unicode-primary);
  background: var(--unicode-control);
  font-weight: 700;
}

.unicode-notice,
.unicode-panel {
  border: 1px solid var(--unicode-border);
  border-radius: var(--unicode-radius-panel);
  background: var(--unicode-panel);
}

.unicode-notice {
  margin-block-end: var(--unicode-panel-gap);
  padding: 10px 14px;
  border-color: var(--unicode-notice-border);
  color: var(--unicode-notice-text);
  background: var(--unicode-notice-bg);
}

.unicode-panel {
  margin-block-end: var(--unicode-panel-gap);
  padding: 14px;
}

.unicode-panel h2,
.unicode-panel h3 {
  margin-block: 0 8px;
}

.unicode-panel h2 {
  font-size: 18px;
}

.unicode-panel h3 {
  margin-block-start: 18px;
  font-size: 15px;
}

.unicode-panel-heading {
  margin-block-end: 12px;
}

.unicode-panel-heading--table {
  align-items: flex-start;
}

/* 入力部品と操作ボタン */
.unicode-lookup-grid,
.unicode-filter-grid {
  display: grid;
  gap: 10px;
  align-items: end;
}

.unicode-lookup-grid {
  grid-template-columns: var(--unicode-lookup-columns);
}

.unicode-filter-grid {
  grid-template-columns: var(--unicode-filter-columns);
}

.unicode-field {
  display: grid;
  gap: 5px;
  min-width: 0;
  color: var(--unicode-muted);
  font-weight: 600;
}

.unicode-control,
.unicode-button {
  min-height: var(--unicode-control-height);
  border: 1px solid var(--unicode-border);
  border-radius: var(--unicode-radius-control);
  color: var(--unicode-text);
  background: var(--unicode-control);
  font: inherit;
}

.unicode-control {
  width: 100%;
  min-width: 0;
  padding: var(--unicode-control-padding);
}

.unicode-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--unicode-button-padding);
  cursor: pointer;
  font-weight: 700;
  white-space: nowrap;
}

.unicode-button:hover:not(:disabled) {
  border-color: var(--unicode-border-strong);
}

.unicode-button--primary {
  border-color: var(--unicode-primary);
  color: var(--unicode-on-primary);
  background: var(--unicode-primary);
}

.unicode-button--primary:hover:not(:disabled) {
  border-color: var(--unicode-primary-hover);
  background: var(--unicode-primary-hover);
}

.unicode-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.unicode-control:focus-visible,
.unicode-button:focus-visible,
.unicode-mini-copy:focus-visible,
.unicode-table tr:focus-visible,
.unicode-table-scroll:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--unicode-focus) 45%, transparent);
  outline-offset: 2px;
}

.unicode-code,
.unicode-code-cell,
.unicode-detail-item code,
.unicode-mini-copy {
  font-family: var(--unicode-font-monospace);
}

.unicode-message {
  min-height: 1.5em;
  margin-block: 8px 0;
  margin-inline: 0;
  color: var(--unicode-muted);
}

.unicode-message:empty {
  display: none;
}

.unicode-message[data-tone="success"] {
  color: var(--unicode-success);
}

.unicode-message[data-tone="error"] {
  color: var(--unicode-error);
}

/* 選択文字の詳細 */
.unicode-detail-heading {
  align-items: flex-start;
}

.unicode-character {
  display: grid;
  place-items: center;
  min-width: 130px;
  min-height: 112px;
  padding: 12px;
  border: 1px solid var(--unicode-border);
  border-radius: var(--unicode-radius-panel);
  overflow-wrap: anywhere;
  background: var(--unicode-control);
  font-family: var(--unicode-font-symbol);
  font-size: clamp(30px, 5vw, 60px);
  line-height: 1;
}

.unicode-character-wrap {
  display: grid;
  flex: 0 0 150px;
  gap: 8px;
}

.unicode-aliases {
  font-size: 13px;
}

.unicode-detail-grid,
.unicode-escape-grid {
  display: grid;
  grid-template-columns: var(--unicode-detail-columns);
  gap: 8px;
  margin: 0;
}

.unicode-detail-item {
  min-width: 0;
  padding: 9px;
  border: 1px solid var(--unicode-border);
  border-radius: var(--unicode-radius-content);
  background: var(--unicode-control);
}

.unicode-detail-item dt {
  color: var(--unicode-muted);
  font-size: 12px;
  font-weight: 600;
}

.unicode-detail-item dd {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  margin-block: 3px 0;
  margin-inline: 0;
}

.unicode-detail-item code {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.unicode-mini-copy {
  flex: 0 0 auto;
  min-height: 28px;
  padding: 3px 8px;
  border: 1px solid var(--unicode-border);
  border-radius: var(--unicode-radius-compact);
  color: var(--unicode-text);
  background: var(--unicode-panel);
  cursor: pointer;
}

/* 一覧操作とテーブル */
.unicode-result-bar {
  min-height: 48px;
  margin-block-start: 8px;
}

.unicode-result-bar p {
  margin-block: 0;
  margin-inline: 0;
  color: var(--unicode-muted);
}

.unicode-pagination,
.unicode-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.unicode-pagination span {
  min-width: 120px;
  text-align: center;
}

.unicode-table-scroll {
  max-width: 100%;
  overflow: auto;
  border: 1px solid var(--unicode-border);
  border-radius: var(--unicode-radius-content);
}

.unicode-table {
  --unicode-table-min-width: 1050px;

  width: 100%;
  min-width: var(--unicode-table-min-width);
  border-collapse: separate;
  border-spacing: 0;
  background: var(--unicode-panel);
}

/* 派生テーブルでは寸法だけを上書きし、罫線とセル指定は共通化する。 */
.unicode-table--analysis {
  --unicode-table-min-width: 850px;
}

.unicode-normalization-table {
  --unicode-table-min-width: 760px;
}

.unicode-table th,
.unicode-table td {
  padding: 8px 10px;
  border-inline-end: 1px solid var(--unicode-border);
  border-block-end: 1px solid var(--unicode-border);
  text-align: start;
  vertical-align: middle;
}

.unicode-table th:last-child,
.unicode-table td:last-child {
  border-inline-end: 0;
}

.unicode-table tbody tr:last-child td,
.unicode-table tbody tr:last-child th {
  border-block-end: 0;
}

.unicode-table thead th {
  position: sticky;
  z-index: 1;
  top: 0;
  color: var(--unicode-text);
  background: var(--unicode-code-bg);
  white-space: nowrap;
}

.unicode-table tbody tr[data-code] {
  cursor: pointer;
}

.unicode-table tbody tr[data-code]:hover {
  background: var(--unicode-row-hover);
}

.unicode-table tbody tr[aria-current="true"] {
  background: var(--unicode-row-selected);
}

.unicode-glyph-cell {
  width: 90px;
  max-width: 150px;
  overflow-wrap: anywhere;
  font-family: var(--unicode-font-symbol);
  font-size: 20px;
  font-weight: 600;
}

.unicode-name-cell {
  min-width: 260px;
}

.unicode-empty {
  margin-block: 14px 0;
  margin-inline: 0;
  color: var(--unicode-muted);
  text-align: center;
}

/* テキスト解析 */
.unicode-textarea {
  min-height: 130px;
  resize: vertical;
  color: var(--unicode-text);
  background: var(--unicode-control);
  font-family: var(--unicode-font-monospace);
  line-height: 1.6;
}

.unicode-summary {
  margin-block: 10px;
  margin-inline: 0;
  color: var(--unicode-muted);
}

.unicode-normalization-table th[scope="row"] {
  width: 100px;
}

.unicode-normalized-text {
  min-width: 220px;
  font-size: 17px;
  overflow-wrap: anywhere;
}

/* ツール説明 */
.unicode-about-grid {
  display: grid;
  grid-template-columns: var(--unicode-about-columns);
  gap: 24px;
}

.unicode-about ul,
.unicode-about ol {
  margin-block: 6px 0;
  padding-inline-start: 22px;
}

/* レスポンシブレイアウト */
@media (max-width: 1100px) {
  body.unicode-page {
    --unicode-filter-columns: repeat(2, minmax(0, 1fr));
    --unicode-detail-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body.unicode-page {
    --unicode-lookup-columns: 1fr;
    --unicode-filter-columns: 1fr;
    --unicode-detail-columns: 1fr;
    --unicode-about-columns: 1fr;
  }

  .unicode-main {
    width: min(100% - 20px, 1500px);
    padding-block-start: 18px;
  }

  .unicode-title-row,
  .unicode-panel-heading,
  .unicode-result-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .unicode-version {
    align-self: flex-start;
  }

  .unicode-character {
    min-width: 100%;
  }

  .unicode-character-wrap {
    width: 100%;
  }

  .unicode-actions,
  .unicode-pagination {
    justify-content: center;
  }

  .unicode-panel {
    padding: 12px;
  }
}

/* モーション設定 */
@media (prefers-reduced-motion: reduce) {
  .unicode-page * {
    scroll-behavior: auto !important;
  }
}