@charset "UTF-8";
/* CSS Document */
/* 文章比較・テキスト差分チェック (Diff) CSS */
/* みんなの知識 ちょっと便利帳 */
/* 2026/07/10 */

  /* ---------- 親ページと干渉しないよう、コンテナ内にすべて閉じ込める ---------- */
  .diff-tool-container {
    --paper-deep: #EBEFE0;
    --paper-card: #FAFBF7;
    --grid-line: rgba(35,38,31,0.04);
    --line-hair: #E0E4D5;
    --ink: #3A3E34;
    --ink-soft: #75796C;
    --ink-faint: #A5A998;
    --hanko: #C95347;
    --hanko-deep: #963B31;
    --hanko-wash: rgba(201,83,71,0.07);
    --hanko-wash-strong: rgba(201,83,71,0.14);
    --indigo: #436485;
    --indigo-deep: #2F4A63;
    --indigo-wash: rgba(67,100,133,0.07);
    --indigo-wash-strong: rgba(67,100,133,0.14);
    --focus: #BA8F51;
    --radius: 4px;
    --serif: "Shippori Mincho", serif;
    --sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;

    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.75;
    box-sizing: border-box;
  }

  .diff-tool-container * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  /* 選択時のハイライト（コンテナ内限定） */
  .diff-tool-container ::selection {
    background: var(--indigo-wash-strong);
  }

  /* ページ全体のラップ（背景色は設定せず透過。グリッド線も優しく）
     横マージンは取らず、親ページが与えた幅いっぱいに広がる。
     外枠は視認しやすいようはっきりした色・太さにする。 */
  .diff-tool-container .page-wrapper {
    max-width: 100%;
    margin: 0;
    padding: 28px 20px 48px;
    border: 1.5px solid var(--ink-soft);
    border-radius: 8px;
    background-image:
      linear-gradient(var(--grid-line) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 28px 28px;
  }

  .diff-tool-container a {
    color: inherit;
  }

  /* ---------- Masthead ---------- */
  .diff-tool-container .masthead {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: start;
    gap: 20px;
    padding-bottom: 24px;
    border-bottom: 1.5px solid var(--ink-soft);
    margin-bottom: 36px;
  }
  .diff-tool-container .masthead__rule {
    width: 5px;
    align-self: stretch;
    background: repeating-linear-gradient(
      to bottom,
      var(--hanko) 0 10px,
      var(--indigo) 10px 20px
    );
    border-radius: 3px;
  }
  .diff-tool-container .kicker {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
/*    color: var(--ink-faint);*/
    color: #333;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  /* タイトルサイズを小さめに調整 */
  .diff-tool-container .title {
    font-family: var(--serif);
    font-weight: 800;
    font-size: clamp(26px, 4vw, 38px);
    letter-spacing: 0.04em;
    line-height: 1.2;
    color: var(--ink);
	text-align: left;
  }
  /* 周辺フォントを少し大きめに */
  .diff-tool-container .lede {
    margin-top: 12px;
    max-width: 48ch;
/*    color: var(--ink-soft);*/
    color: #333;
    font-size: 15.5px;
  }
  .diff-tool-container .stamp {
    justify-self: end;
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 2px solid var(--hanko);
    box-shadow: inset 0 0 0 4px var(--hanko-wash);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transform: rotate(-6deg);
    color: var(--hanko);
    font-family: var(--serif);
    font-weight: 800;
    flex: none;
    background: var(--paper-card);
  }
  .diff-tool-container .stamp__label {
    font-size: 14px;
    letter-spacing: 0.15em;
    color: var(--hanko-deep);
    font-family: var(--sans);
    font-weight: 700;
  }
  .diff-tool-container .stamp__counts {
    display: flex;
    gap: 6px;
    font-size: 16px;
    margin-top: 2px;
  }
  .diff-tool-container .stamp__counts .ins { color: var(--indigo); }
  .diff-tool-container .stamp__counts .del { color: var(--hanko); }

  /* ---------- 使い方（結果に埋もれないよう白背景＋左の色帯で強調） ---------- */
  .diff-tool-container .dc-help {
    background: var(--paper-card);
    border: 1px solid var(--line-hair);
    border-left: 4px solid var(--indigo);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-bottom: 28px;
  }
  .diff-tool-container .dc-help__summary {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 16px;
    color: var(--ink);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .diff-tool-container .dc-help__summary::-webkit-details-marker { display: none; }
  .diff-tool-container .dc-help__summary::before {
    content: "▸";
    color: var(--indigo-deep);
    font-size: 12px;
  }
  .diff-tool-container .dc-help[open] .dc-help__summary::before { content: "▾"; }
  .diff-tool-container .dc-help__list {
    margin-top: 12px;
    padding-left: 22px;
    color: var(--ink);
    font-size: 15px;
    line-height: 1.95;
  }
  .diff-tool-container .dc-help__list li { list-style: disc; margin-bottom: 6px; }
  .diff-tool-container .dc-help__list li:last-child { margin-bottom: 0; }
  .diff-tool-container .dc-help__list b { font-weight: 700; }

  /* ---------- Input grid ---------- */
  .diff-tool-container .input-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
    gap: 14px;
    margin-bottom: 22px;
  }
  .diff-tool-container .input-card {
    background: var(--paper-card);
    border: 1.5px solid var(--ink-soft);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
  }
  .diff-tool-container .input-card__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 12px 16px 8px;
    border-bottom: 1.5px solid var(--ink-soft);
  }
  .diff-tool-container .input-card__head label {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.04em;
  }
  .diff-tool-container .input-card:first-child .input-card__head label::before {
    content: "旧";
    display: inline-block;
    font-size: 11px;
    color: var(--paper-card);
    background: var(--hanko);
    border-radius: 2px;
    padding: 1px 5px;
    margin-right: 8px;
    font-family: var(--sans);
    font-weight: 700;
    vertical-align: 2px;
  }
  .diff-tool-container .input-card:last-child .input-card__head label::before {
    content: "新";
    display: inline-block;
    font-size: 11px;
    color: var(--paper-card);
    background: var(--indigo);
    border-radius: 2px;
    padding: 1px 5px;
    margin-right: 8px;
    font-family: var(--sans);
    font-weight: 700;
    vertical-align: 2px;
  }
  .diff-tool-container .meta {
    font-size: 14px;
/*    color: var(--ink-faint);*/
    color: #333;
    font-variant-numeric: tabular-nums;
  }
  /* 入力文字サイズを少し大きく変更 */
  .diff-tool-container textarea {
    width: 100%;
    min-height: 230px;
    border: none;
    background: transparent;
    resize: vertical;
    padding: 14px 16px 16px;
    font-family: var(--sans);
    font-size: 15.5px;
    line-height: 1.85;
    color: var(--ink);
	
	background-color: #ffffff;
	
  }
  .diff-tool-container textarea:focus {
    outline: 2px solid var(--focus);
    outline-offset: -2px;
  }
  .diff-tool-container textarea::placeholder { color: var(--ink-faint); }

  .diff-tool-container .swap-btn {
    align-self: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--line-hair);
    background: var(--paper-card);
    color: var(--ink-soft);
    font-size: 18px;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease, color .15s ease;
  }
  .diff-tool-container .swap-btn:hover { background: var(--paper-deep); color: var(--ink); transform: rotate(180deg); }
  .diff-tool-container .swap-btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

  /* ---------- Controls ---------- */
  .diff-tool-container .controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    padding: 16px 18px;
    background: var(--paper-card);
    border: 1px solid var(--line-hair);
    border-radius: var(--radius);
    margin-bottom: 32px;
  }
  .diff-tool-container .control-group {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .diff-tool-container .control-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--ink-soft);
    letter-spacing: 0.06em;
  }
  .diff-tool-container .segmented {
    display: flex;
    border: 1px solid var(--ink-soft);
    border-radius: 999px;
    overflow: hidden;
  }
  .diff-tool-container .seg-btn {
    border: none;
    background: var(--paper-card);
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 13.5px;
    font-weight: 700;
    padding: 7px 16px;
    cursor: pointer;
    border-right: 1px solid var(--ink-soft);
  }
  .diff-tool-container .seg-btn:last-child { border-right: none; }
  .diff-tool-container .seg-btn.is-active {
    background: var(--ink-soft);
    color: var(--paper-card);
  }
  .diff-tool-container .seg-btn:focus-visible { outline: 2px solid var(--focus); outline-offset: -3px; }

  .diff-tool-container .control-actions {
    display: flex;
    gap: 10px;
    margin-left: auto;
  }
  .diff-tool-container .btn {
    font-family: var(--sans);
    font-weight: 700;
    font-size: 14px;
    padding: 9px 20px;
    border-radius: 999px;
    cursor: pointer;
    border: 1px solid var(--ink-soft);
    transition: background .15s ease, color .15s ease, transform .1s ease, border-color .15s ease;
  }
  .diff-tool-container .btn:active { transform: translateY(1px); }
  .diff-tool-container .btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
  .diff-tool-container .btn--ghost { background: transparent; color: var(--ink-soft); }
  .diff-tool-container .btn--ghost:hover { background: var(--paper-deep); color: var(--ink); }
  .diff-tool-container .btn--primary { background: var(--ink-soft); color: var(--paper-card); border-color: var(--ink-soft); }
  .diff-tool-container .btn--primary:hover { background: var(--ink); border-color: var(--ink); }
  .diff-tool-container .btn--small { padding: 6px 14px; font-size: 12.5px; }

  /* ---------- Result ---------- */
  .diff-tool-container .empty-state {
    text-align: center;
/*    color: var(--ink-faint);*/
    color: #666;
    font-size: 15px;
    padding: 60px 20px;
    border: 1px dashed var(--line-hair);
    border-radius: var(--radius);
  }
  .diff-tool-container .result__head {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 14px;
  }
  .diff-tool-container .result__head h3 {
    font-family: var(--serif);
    font-size: 21px;
    font-weight: 700;
  }
  .diff-tool-container .legend {
    display: flex;
    gap: 14px;
    margin-left: 4px;
  }
  .diff-tool-container .legend__item {
    font-size: 13px;
    color: var(--ink-soft);
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .diff-tool-container .legend__item::before {
    content: "";
    width: 12px; height: 12px;
    border-radius: 2px;
    display: inline-block;
  }
  .diff-tool-container .legend__item--del::before { background: var(--hanko-wash-strong); border: 1px solid var(--hanko); }
  .diff-tool-container .legend__item--ins::before { background: var(--indigo-wash-strong); border: 1px solid var(--indigo); }

  .diff-tool-container #copyBtn { margin-left: auto; }

  .diff-tool-container .result__body {
    border: 1px solid var(--line-hair);
    border-radius: var(--radius);
    background: var(--paper-card);
    overflow: hidden;
  }

  /* 差分結果テキストの文字サイズを全体的に大きく調整 */
  .diff-tool-container .u-row {
    display: flex;
    font-size: 15.5px;
    line-height: 1.9;
    border-bottom: 1px solid var(--line-hair);
    white-space: pre-wrap;
    word-break: break-word;
  }
  .diff-tool-container .u-row:last-child { border-bottom: none; }
  .diff-tool-container .u-row__marker {
    flex: none;
    width: 36px;
    text-align: center;
    font-weight: 700;
    font-family: var(--sans);
    color: var(--ink-faint);
    border-right: 1px solid var(--line-hair);
    background: var(--paper-deep);
  }
  .diff-tool-container .u-row__text { padding: 4px 14px; flex: 1; }
  .diff-tool-container .u-row--equal .u-row__text { color: var(--ink); }
  .diff-tool-container .u-row--delete { background: var(--hanko-wash); }
  .diff-tool-container .u-row--delete .u-row__marker { color: var(--hanko-deep); }
  .diff-tool-container .u-row--insert { background: var(--indigo-wash); }
  .diff-tool-container .u-row--insert .u-row__marker { color: var(--indigo-deep); }

  .diff-tool-container .u-inline {
    padding: 16px 18px;
    font-size: 15.5px;
    line-height: 2;
    white-space: pre-wrap;
    word-break: break-word;
  }
  .diff-tool-container .u-inline .diff-del {
    background: var(--hanko-wash-strong);
    color: var(--hanko-deep);
    text-decoration: line-through;
    text-decoration-thickness: 1.5px;
    border-radius: 2px;
  }
  .diff-tool-container .u-inline .diff-ins {
    background: var(--indigo-wash-strong);
    color: var(--indigo-deep);
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    border-radius: 2px;
  }

  .diff-tool-container .sub-del {
    background: var(--hanko-wash-strong);
    color: var(--hanko-deep);
    text-decoration: line-through;
    text-decoration-thickness: 1.5px;
    font-weight: 700;
    border-radius: 2px;
    padding: 0 1px;
  }
  .diff-tool-container .sub-ins {
    background: var(--indigo-wash-strong);
    color: var(--indigo-deep);
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    font-weight: 700;
    border-radius: 2px;
    padding: 0 1px;
  }

  .diff-tool-container .split-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
  }
  .diff-tool-container .split-table td {
    padding: 5px 14px;
    vertical-align: top;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.9;
  }
  .diff-tool-container .split-table tr { border-bottom: 1px solid var(--line-hair); }
  .diff-tool-container .split-table td.ln {
    width: 42px;
    text-align: right;
    color: var(--ink-faint);
    font-variant-numeric: tabular-nums;
    user-select: none;
    border-right: 1px solid var(--line-hair);
    padding-right: 8px;
  }
  .diff-tool-container .split-table td.mid-gap {
    width: 0;
    border-right: 1.5px solid var(--ink-soft);
    padding: 0;
  }
  .diff-tool-container .cell--equal { color: var(--ink); }
  .diff-tool-container .cell--delete { background: var(--hanko-wash); color: var(--hanko-deep); }
  .diff-tool-container .cell--insert { background: var(--indigo-wash); color: var(--indigo-deep); }
  .diff-tool-container .cell--blank {
    background: repeating-linear-gradient(
      -45deg, var(--paper-deep) 0 6px, var(--paper-card) 6px 12px
    );
  }

  .diff-tool-container footer.note {
    margin-top: 28px;
    font-size: 13px;
    color: var(--ink-faint);
    text-align: center;
  }

  @media (max-width: 760px) {
    .diff-tool-container .input-grid { grid-template-columns: 1fr; }
    .diff-tool-container .swap-btn { justify-self: center; transform: rotate(90deg); }
    .diff-tool-container .swap-btn:hover { transform: rotate(270deg); }
    .diff-tool-container .masthead { grid-template-columns: 1fr; }
    .diff-tool-container .stamp { justify-self: start; }
    .diff-tool-container .control-actions { margin-left: 0; width: 100%; justify-content: flex-end; }
  }

  @media (prefers-reduced-motion: reduce) {
    .diff-tool-container * { transition: none !important; animation: none !important; }
  }