.container {
    background-color: var(--card-bg);
    width: 100%;
    max-width: 1400px;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 5px 25px var(--shadow-color);
    display: grid;
    grid-template-columns: 1.3fr 0.7fr; /* PCレイアウト */
    gap: 40px;
    align-items: start;
    position: relative;
    transition: background-color 0.3s, box-shadow 0.3s;
  }

  /* ヘッダーコントロール (左上) */
  .header-controls {
    position: absolute; top: 20px; left: 20px; z-index: 100;
    display: flex; align-items: center; gap: 10px;
  }
  /* ヘッダーボタンエリア (右上) */
  .header-right-area {
    position: absolute; top: 20px; right: 20px; z-index: 200;
    display: flex; gap: 10px; align-items: flex-start;
  }

  /* テーマ切り替えボタン */
  .theme-toggle-btn {
    width: 36px; height: 36px; border-radius: 50%; 
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; border: 1px solid var(--border-color); 
    background-color: var(--card-bg); color: var(--text-color);
    transition: all 0.2s ease;
  }
  .theme-toggle-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
  .theme-toggle-btn svg { width: 20px; height: 20px; fill: currentColor; }

  /* 丸ボタン共通 (右上のボタン群) */
  .round-btn {
    width: 36px; height: 36px; border-radius: 50%; 
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; border: 1px solid var(--border-color); 
    background-color: var(--card-bg); color: var(--text-color);
    transition: all 0.2s; text-decoration: none;
  }
  .round-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0,0,0,0.1); background-color: var(--element-bg); }
  .round-btn svg { width: 18px; height: 18px; fill: currentColor; }

  /* 免責事項ボタン */
  .disclaimer-btn {
    display: flex; align-items: center; gap: 5px;
    padding: 0 12px; height: 36px; border-radius: 18px;
    cursor: pointer; border: 1px solid var(--border-color);
    background-color: var(--card-bg); color: var(--text-color);
    font-size: 11px; font-weight: bold;
    transition: all 0.2s ease;
    text-decoration: none;
  }
  .disclaimer-btn:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    background-color: var(--element-bg);
  }
  .disclaimer-btn svg { width: 14px; height: 14px; fill: currentColor; }

  /* モーダルウィンドウ */
  .modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--modal-overlay); z-index: 2000;
    display: flex; justify-content: center; align-items: center;
    opacity: 0; visibility: hidden; transition: all 0.3s;
    backdrop-filter: blur(2px);
  }
  .modal-overlay.active { opacity: 1; visibility: visible; }
  
  .modal-content {
    background-color: var(--card-bg); padding: 30px; border-radius: 12px;
    width: 90%; 
    max-width: 750px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    transform: translateY(20px); transition: transform 0.3s;
    position: relative;
    display: flex; flex-direction: column; 
    max-height: 85vh; 
  }
  .modal-overlay.active .modal-content { transform: translateY(0); }
  
  .modal-title { font-size: 16px; font-weight: bold; color: var(--primary-color); margin-bottom: 15px; border-bottom: 2px solid var(--border-color); padding-bottom: 10px; }
  .modal-body { font-size: 12px; color: var(--text-color); line-height: 1.8; overflow-y: auto; }
  .modal-body ul { padding-left: 20px; margin: 0; }
  .modal-body li { margin-bottom: 8px; }
  
  .modal-close-btn {
    position: absolute; top: 15px; right: 15px; width: 30px; height: 30px;
    background: transparent; border: none; cursor: pointer; color: var(--sub-text-color);
    display: flex; align-items: center; justify-content: center; font-size: 20px;
    border-radius: 50%; transition: background 0.2s;
  }
  .modal-close-btn:hover { background-color: var(--element-bg); color: var(--text-color); }

  /* 色選択モーダル用グリッド */
  .color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    gap: 8px;
    padding: 5px;
  }
  .color-item {
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 6px; border: 1px solid var(--border-color); border-radius: 6px;
    cursor: pointer; transition: transform 0.1s, background-color 0.2s;
    background-color: var(--element-bg);
  }
  .color-item:hover { transform: translateY(-2px); background-color: var(--card-bg); box-shadow: 0 3px 6px rgba(0,0,0,0.1); }
  
  .color-swatch-box { width: 100%; height: 40px; border-radius: 4px; border: 1px solid rgba(0,0,0,0.1); }
  .color-item-name { font-size: 12px; font-weight: bold; text-align: center; word-break: break-all; line-height: 1.2; }
  .color-item-hex { font-size: 9px; color: var(--sub-text-color); font-family: monospace; }

  /* ツールチップ */
  .copy-tooltip {
    position: absolute; top: -35px; right: 0; background-color: #333; color: #fff; padding: 5px 10px;
    border-radius: 4px; font-size: 11px; opacity: 0; transition: opacity 0.3s; pointer-events: none; white-space: nowrap;
  }
  .copy-tooltip.show { opacity: 1; }

  .left-column { display: flex; flex-direction: column; gap: 20px; }
  .right-column { display: flex; flex-direction: column; height: 100%; gap: 15px; }

  .settings-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start;
  }

  h1 {
    grid-column: 1 / -1; text-align: center; color: var(--primary-color);
    font-family: 'Zen Maru Gothic', sans-serif;
    font-size: 32px; font-weight: 700; letter-spacing: 1px; 
    margin-top: 40px;
    margin-bottom: -20px;
  }
  .site-description {
    grid-column: 1 / -1; text-align: center; color: var(--sub-text-color);
    font-size: 13px; margin-top: 0; margin-bottom: 20px; line-height: 1.6;
    margin-bottom: -10px;
  }

  /* 見出しスタイル (折り返し対応) */
  .section-heading {
    font-size: 14px; font-weight: 700; color: var(--section-heading-color);
    border-bottom: 2px solid var(--border-color); 
    margin-bottom: 10px; margin-top: 0; 
    display: flex; align-items: center;
    flex-wrap: wrap; /* 折り返し許可 */
    min-height: 44px; /* 高さ固定廃止 */
    box-sizing: border-box;
    padding-bottom: 5px;
  }
  .section-heading.no-border { border-bottom: none; margin-bottom: 5px; min-height: 34px; }
  .section-heading::before {
    content: ''; display: inline-block; width: 6px; height: 6px;
    background-color: var(--primary-color); border-radius: 50%; margin-right: 8px; flex-shrink: 0;
  }

  .preset-buttons { margin-left: auto; display: flex; gap: 6px; }
  .preset-btn {
    padding: 4px 10px; font-size: 10px; font-weight: bold; border: 1px solid var(--border-color);
    border-radius: 20px; cursor: pointer; background-color: var(--card-bg); color: var(--text-color); transition: all 0.2s;
    display: flex; align-items: center; justify-content: center; white-space: nowrap;
  }
  .preset-btn:hover { transform: translateY(-1px); background-color: var(--primary-color); color: #fff; border-color: var(--primary-color); }
  .preset-btn:active { transform: translateY(0); }
  /* アクティブボタン */
  .preset-btn.active {
    background-color: var(--primary-color); color: white; border-color: var(--primary-color);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
  }

  .input-group { margin-bottom: 0; }
  
  /* 入力スタイル */
  input[type="text"], input[type="password"], input[type="number"] {
    width: 100%; padding: 12px;
    border: 2px solid var(--border-color); border-radius: 8px;
    box-sizing: border-box; font-size: 14px;
    background-color: var(--input-bg); color: var(--text-color);
    font-family: 'Noto Sans JP', sans-serif;
  }
  input:focus { border-color: var(--primary-color); outline: none; background-color: var(--input-bg-focus); }
  /* フォーカス時プレースホルダー非表示 */
  input:focus::placeholder { color: transparent; }

  .row-group { display: flex; gap: 15px; align-items: flex-start; }
  .col-2-3 { flex: 2; }
  .col-1-3 { flex: 1; }

  .radio-group {
    display: flex; background-color: var(--input-bg); border: 2px solid var(--border-color);
    border-radius: 8px; padding: 4px; gap: 4px;
  }
  .radio-item { flex: 1; position: relative; }
  .radio-item input { position: absolute; opacity: 0; cursor: pointer; height: 0; width: 0; }
  
  .radio-label {
    display: block; text-align: center; padding: 8px 4px; border-radius: 6px;
    font-size: 12px; font-weight: bold; color: var(--sub-text-color); cursor: pointer; transition: all 0.2s;
    white-space: nowrap; 
  }
  .radio-item input:checked + .radio-label {
    background-color: var(--primary-color); color: white; box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  .options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 15px; }

  /* オプションカード（折り返し＆右寄せ） */
  .option-card {
    background-color: var(--element-bg); padding: 8px 12px; border-radius: 8px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; 
  }
  
  /* テキスト部分の調整 */
  .option-text { 
    display: flex; flex-direction: column; 
    margin-right: 10px;
  }
  
  /* スイッチや入力欄を常に「右端」に寄せる */
  .option-card > div:not(.option-text), 
  .option-card > label.switch {
    margin-left: auto;
    display: flex;
    align-items: center;
  }

  /* ツールチップ関連 */
  /* ★修正: .tekey-sub-btn[data-tooltip] を追加しました */
  .option-card[data-tooltip], .tekey-column-toggle[data-tooltip], 
  .result-label[data-tooltip], .radio-label[data-tooltip], 
  .help-icon[data-tooltip], .btn-tooltip-wrapper[data-tooltip],
  .tooltip-text[data-tooltip],
  .tekey-sub-btn[data-tooltip] { 
    position: relative; cursor: help; 
  }
  
  /* hover::after */
  .option-card[data-tooltip]:hover::after, .tekey-column-toggle[data-tooltip]:hover::after, 
  .result-label[data-tooltip]:hover::after, .radio-label[data-tooltip]:hover::after, 
  .help-icon[data-tooltip]:hover::after, .btn-tooltip-wrapper[data-tooltip]:hover::after,
  .tooltip-text[data-tooltip]:hover::after,
  .tekey-sub-btn[data-tooltip]:hover::after {
    content: attr(data-tooltip); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
    background-color: rgba(0,0,0,0.9); color: #fff; padding: 8px 12px; border-radius: 6px;
    font-size: 11px; font-weight: normal; font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.4; white-space: pre-wrap; width: max-content; max-width: 240px;
    z-index: 1000; margin-bottom: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.3); pointer-events: none; opacity: 0; animation: tooltipFade 0.2s forwards;
  }
  
  /* hover::before */
  .option-card[data-tooltip]:hover::before, .tekey-column-toggle[data-tooltip]:hover::before, 
  .result-label[data-tooltip]:hover::before, .radio-label[data-tooltip]:hover::before, 
  .help-icon[data-tooltip]:hover::before, .btn-tooltip-wrapper[data-tooltip]:hover::before,
  .tooltip-text[data-tooltip]:hover::before,
  .tekey-sub-btn[data-tooltip]:hover::before {
    content: ''; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
    border: 6px solid transparent; border-top-color: rgba(0,0,0,0.9); margin-bottom: -4px; z-index: 1000; opacity: 0; animation: tooltipFade 0.2s forwards;
  }
  @keyframes tooltipFade { from { opacity: 0; transform: translate(-50%, 5px); } to { opacity: 1; transform: translate(-50%, 0); } }

  .option-title { font-size: 13px; font-weight: bold; color: var(--text-color); }
  .option-desc { font-size: 10px; color: var(--sub-text-color); margin-top: 1px; }

  .switch { position: relative; display: inline-block; width: 36px; height: 20px; flex-shrink: 0; }
  .switch input { opacity: 0; width: 0; height: 0; }
  .slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--toggle-bg); transition: .4s; border-radius: 34px; }
  .slider:before { position: absolute; content: ""; height: 14px; width: 14px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
  input:checked + .slider { background-color: var(--primary-color); }
  input:checked + .slider:before { transform: translateX(16px); }

  input.mini-input { padding: 2px 4px; border: 1px solid var(--border-color); border-radius: 4px; font-size: 12px; margin-right: 8px; background-color: var(--card-bg); color: var(--text-color); width: 50px; text-align: right; }
  select.mini-select { padding: 2px 6px; border: 1px solid var(--border-color); border-radius: 4px; font-size: 12px; margin-right: 8px; background-color: var(--card-bg); color: var(--text-color); }

  /* 技能補正エリア */
  .correction-content { padding: 15px; }
  .correction-row { 
    display: flex; justify-content: space-between; align-items: center; gap: 8px; 
    margin-bottom: 5px; border-bottom: 1px dashed var(--border-color); padding-bottom: 5px;
  }
  .correction-row:last-child { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }
  .correction-num { font-size: 12px; font-weight: bold; color: var(--primary-color); width: 15px; flex-shrink: 0; }
  
  .correction-item { display: flex; align-items: center; gap: 5px; flex-grow: 1; justify-content: center; }
  .correction-item:first-child { justify-content: flex-start; flex-grow: 1; } 
  .correction-item:last-child { justify-content: flex-end; flex-grow: 0; }
  
  .correction-label { font-size: 11px; font-weight: bold; color: var(--text-color); white-space: nowrap; }
  
  select.correction-select { padding: 8px; border: 1px solid var(--border-color); border-radius: 6px; font-size: 12px; background-color: var(--card-bg); color: var(--text-color); width: 100%; }
  input.correction-input { padding: 8px; border: 1px solid var(--border-color); border-radius: 6px; font-size: 12px; width: 80px; text-align: center; background-color: var(--card-bg); color: var(--text-color); }

  /* details/summary (枠線を維持しつつ動き防止) */
  details { 
    border: 1px solid var(--border-color); 
    border-radius: 8px; 
    margin-bottom: 12px; 
    background-color: var(--element-bg); 
  }
  
  summary { 
    padding: 10px 15px; 
    cursor: pointer; 
    font-weight: bold; 
    font-size: 12px; 
    color: var(--primary-color); 
    background-color: var(--card-bg); 
    display: flex; 
    align-items: center; 
    
    border-radius: 8px; 
    list-style: none;   /* マーカー削除 */
    outline: none;      /* フォーカス枠削除 */
    user-select: none;  /* テキスト選択防止 */
  }
  summary::-webkit-details-marker { display: none; }
  summary:hover { background-color: var(--input-bg); }
  summary::after { content: '+'; margin-left: auto; font-size: 16px; font-weight: 300; }
  
  /* 開いている時のスタイル */
  details[open] summary { 
    border-radius: 8px 8px 0 0; 
  }
  details[open] summary::after { content: '-'; }
  .summary-sub { font-size: 10px; font-weight: normal; color: var(--sub-text-color); margin-left: 5px; }

  /* 中身のコンテナ (下側の角丸) */
  .skills-container { 
    padding: 15px; height: auto; max-height: 250px; overflow-y: auto; 
    background-color: var(--input-bg); 
    border-top: 1px solid var(--border-color); 
    resize: vertical; min-height: 100px; 
    border-radius: 0 0 8px 8px; 
  }
  
  .tekey-settings { 
    background-color: var(--input-bg); padding: 15px; border-top: 1px solid var(--border-color); 
    border-radius: 0 0 8px 8px; 
  }
  
  .color-preview-container { 
    padding: 15px; background-color: var(--input-bg); border-top: 1px solid var(--border-color); 
    border-radius: 0 0 8px 8px; 
  }

  .skill-grid { display: flex; flex-wrap: wrap; gap: 6px; }
  .chip-label { cursor: pointer; display: inline-block; }
  .chip-label input { display: none; }
  .chip-text { display: inline-block; padding: 4px 10px; border-radius: 16px; font-size: 11px; background-color: var(--card-bg); border: 1px solid var(--border-color); color: var(--text-color); transition: all 0.2s; }
  .chip-label input:checked + .chip-text { background-color: var(--primary-color); color: white; border-color: var(--primary-color); }

  /* ボタンの定義 */
  .create-btn {
    width: 100%; padding: 16px; 
    background-color: var(--primary-color); color: white; border: none;
    border-radius: 8px; font-size: 16px; font-weight: bold; cursor: pointer;
    transition: transform 0.1s, box-shadow 0.3s; box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    margin-bottom: 10px;
  }
  .create-btn:hover { background-color: var(--section-heading-color); box-shadow: 0 6px 15px rgba(0,0,0,0.15); }
  .create-btn:active { transform: scale(0.98); }
  .create-btn:disabled { background-color: var(--toggle-bg); cursor: not-allowed; }

  .ccfolia-btn {
    width: 100%; padding: 12px; background-color: var(--ccfolia-color); color: white; border: none;
    border-radius: 8px; font-size: 14px; font-weight: bold; cursor: pointer; margin-bottom: 10px;
    transition: transform 0.1s, box-shadow 0.3s; box-shadow: 0 3px 8px rgba(0,0,0,0.2);
    display: flex; justify-content: center; align-items: center; gap: 8px;
  }
  .ccfolia-btn:hover { opacity: 0.9; box-shadow: 0 5px 12px rgba(0,0,0,0.3); }
  .ccfolia-btn:active { transform: scale(0.98); }
  .ccfolia-btn:disabled { background-color: var(--toggle-bg); box-shadow: none; cursor: not-allowed; }

  .tekey-btn {
    width: 100%; padding: 12px; background-color: var(--primary-color); color: white; border: none;
    border-radius: 8px; font-size: 14px; font-weight: bold; cursor: pointer; margin-top: 10px;
    transition: transform 0.1s, box-shadow 0.3s; box-shadow: 0 3px 8px rgba(140, 123, 117, 0.2);
    display: flex; justify-content: center; align-items: center; gap: 8px;
  }
  .tekey-btn:hover { background-color: var(--section-heading-color); box-shadow: 0 5px 12px rgba(0,0,0,0.3); }
  .tekey-btn:active { transform: scale(0.98); }
  .tekey-btn:disabled { background-color: var(--toggle-bg); box-shadow: none; cursor: not-allowed; }

  .tekey-sub-btn {
    width: 100%; padding: 8px; background-color: var(--card-bg); color: var(--primary-color); 
    border: 1px solid var(--primary-color); border-radius: 6px; font-size: 12px; font-weight: bold; cursor: pointer; 
    margin-top: 8px; margin-bottom: 5px; transition: all 0.2s;
    display: flex; justify-content: center; align-items: center; gap: 6px;
  }
  .tekey-sub-btn:hover { background-color: var(--element-bg); box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
  .tekey-sub-btn:active { transform: translateY(1px); }
  .tekey-sub-btn:disabled { border-color: var(--toggle-bg); color: var(--toggle-bg); cursor: not-allowed; }

  .tekey-settings { background-color: var(--input-bg); padding: 15px; border-top: 1px solid var(--border-color); }
  .tekey-input-row { display: grid; grid-template-columns: 1fr; gap: 10px; margin-bottom: 8px; }
  .tekey-label { font-size: 11px; font-weight: bold; color: var(--text-color); margin-bottom: 2px; display:block; }
  .tekey-input { border: 1px solid var(--border-color); background-color: var(--card-bg); padding: 8px; color: var(--text-color); }

  .tekey-column-settings { margin-top: 12px; border-top: 1px dashed var(--border-color); padding-top: 10px; }
  .tekey-column-toggle { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; width: fit-content; }
  .tekey-column-input-area { display: none; }

  .result-wrapper { display: flex; flex-direction: column; position: relative; margin-bottom: 15px; }
  .result-label { font-size: 13px; font-weight: bold; color: var(--primary-color); margin-bottom: 8px; width: fit-content; }
  
  /* テキストエリア定義 */
  textarea {
    width: 100%; height: 350px; padding: 15px;
    border: 2px solid var(--border-color); border-radius: 8px; box-sizing: border-box;
    font-family: 'Noto Sans JP', sans-serif; font-size: 13px;
    background-color: var(--input-bg); color: var(--text-color);
    line-height: 1.6; resize: vertical; 
  }

  .copy-btn {
    position: absolute; top: 35px; right: 12px; width: auto; padding: 6px 12px; margin: 0;
    background-color: var(--card-bg); color: var(--text-color); border: 1px solid var(--border-color);
    border-radius: 6px; font-size: 12px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); z-index: 10; opacity: 0.9; cursor: pointer;
  }
  .copy-btn:hover { background-color: var(--element-bg); box-shadow: 0 3px 8px rgba(0,0,0,0.1); }
  
  .btn-copied { background-color: #e0dcd0 !important; color: #333 !important; border-color: #ccc !important; pointer-events: none; }
  [data-theme="dark"] .btn-copied { background-color: #566270 !important; color: #fff !important; border-color: #777 !important; }

  /* シェアボタン・メニュー */
  .share-wrapper { position: relative; }
  .share-menu {
    display: none; position: absolute; top: 45px; right: 0;
    background-color: var(--card-bg); border: 1px solid var(--border-color); border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.15); padding: 6px 0; min-width: 150px;
    flex-direction: column; animation: fadeIn 0.2s ease; z-index: 201;
  }
  .share-menu.active { display: flex; }
  .share-item {
    display: flex; align-items: center; gap: 10px; padding: 8px 12px; text-decoration: none;
    color: var(--text-color); font-size: 11px; font-weight: bold;
    cursor: pointer; transition: background 0.2s; background: none; border: none; width: 100%; text-align: left;
    font-family: 'Noto Sans JP', sans-serif; box-sizing: border-box; white-space: nowrap;
  }
  .share-item:hover { background-color: var(--element-bg); }
  .share-item svg { width: 14px; height: 14px; fill: currentColor; flex-shrink: 0; }
  
  .share-copy-tooltip {
    position: absolute; top: -45px; right: 0; background-color: #333; color: #fff; padding: 5px 10px;
    border-radius: 4px; font-size: 11px; opacity: 0; transition: opacity 0.3s; pointer-events: none; white-space: nowrap;
  }
  .share-copy-tooltip.show { opacity: 1; }

  /* 作者プロフィール */
  .author-container { display: flex; flex-direction: row; align-items: center; gap: 20px; margin-bottom: 20px; text-align: left; padding: 0 10px; }
  .author-icon { width: 110px; height: 110px; border-radius: 50%; flex-shrink: 0; object-fit: cover; border: 3px solid var(--primary-color); background-color: var(--element-bg); }
  .author-info { display: flex; flex-direction: column; gap: 5px; align-items: flex-start; flex-grow: 1; }
  .author-name-row { display: flex; align-items: center; gap: 10px; }
  .author-name { font-size: 22px; font-weight: bold; color: var(--primary-color); line-height: 1; }
  .author-x-btn {
    display: flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%;
    background-color: #000; color: #fff; text-decoration: none; transition: transform 0.2s;
  }
  [data-theme="dark"] .author-x-btn { background-color: #fff; color: #000; }
  .author-x-btn:hover { transform: translateY(-2px); }
  .author-x-btn svg { width: 14px; height: 14px; fill: currentColor; }
  .author-bio { font-size: 13px; color: var(--text-color); line-height: 1.6; margin-top: 5px; }
  .author-support { margin: 15px 35px 0px 35px; padding-top: 15px; border-top: 1px dashed var(--border-color); font-size: 12px; color: var(--text-color); line-height: 1.7; text-align: center; }
  .support-link { color: var(--primary-color); font-weight: bold; text-decoration: underline; }
  .support-note { display: block; font-size: 10px; color: var(--sub-text-color); margin-top: 4px; }
  
  /* カラープレビュー */
  .color-preview-container { padding: 15px; background-color: var(--input-bg); border-top: 1px solid var(--border-color); 
    border-radius: 0 0 8px 8px; /* ★追加 */
  }
  .color-input-area { display: flex; flex-direction: column; gap: 10px; margin-bottom: 15px; }
  .color-input-row { display: flex; align-items: center; gap: 10px; }
  input[type="color"] { -webkit-appearance: none; border: none; width: 44px; height: 44px; cursor: pointer; background: none; padding: 0; flex-shrink: 0; }
  input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
  input[type="color"]::-webkit-color-swatch { border: 2px solid var(--border-color); border-radius: 8px; }
  .color-text-input { flex-grow: 1; font-family: 'Consolas', 'Monaco', monospace; letter-spacing: 1px; font-size: 16px; padding: 10px; height: 44px; }
  .color-action-btn {
    height: 44px; padding: 0 15px; border: 1px solid var(--border-color); border-radius: 8px;
    background-color: var(--card-bg); color: var(--text-color); cursor: pointer; font-size: 12px; font-weight: bold;
    display: flex; align-items: center; gap: 5px; transition: all 0.2s; white-space: nowrap;
  }
  .color-action-btn:hover { background-color: var(--element-bg); transform: translateY(-1px); }
  .color-action-btn:active { transform: translateY(0); }
  .color-action-btn svg { width: 16px; height: 16px; fill: currentColor; }
  .color-palette-buttons { display: flex; gap: 10px; margin-top: 10px; }
  .palette-select-btn { flex: 1; padding: 8px; background-color: var(--element-bg); border: 1px dashed var(--border-color); border-radius: 6px; cursor: pointer; color: var(--text-color); font-size: 11px; transition: all 0.2s; }
  .palette-select-btn:hover { background-color: var(--card-bg); border-color: var(--primary-color); color: var(--primary-color); }
  .color-name-display { font-size: 11px; color: var(--sub-text-color); text-align: right; margin-top: -5px; min-height: 1.5em; }
  .preview-grid { display: grid; grid-template-columns: 1fr; gap: 10px; }
  .preview-box { padding: 8px 12px; border-radius: 8px; border: 1px solid rgba(0,0,0,0.1); font-size: 13px; font-weight: bold; display: flex; align-items: center; gap: 10px; min-height: 25px; }
  .bg-ccfolia { background-color: #2A2A2A; border-color: #444; } .bg-ccfolia .preview-label { color: #aaaaaa; } 
  .bg-tekey-dark { background-color: #424242; border-color: #555; } .bg-tekey-dark .preview-label { color: #aaaaaa; } 
  .bg-white { background-color: #FFFFFF; border-color: #ddd; } .bg-white .preview-label { color: #666666; } 
  .preview-label { font-size: 10px; width: 110px; flex-shrink: 0; white-space: pre-line; line-height: 1.2; text-align: left; }
  
  /* ★修正: フッターの全幅強制指定 */
  .footer {
    display: block; 
    margin-top: 40px; 
    border-top: 1px solid var(--border-color); 
    padding-top: 20px;
    font-size: 11px; 
    color: var(--sub-text-color); 
    line-height: 1.5; 
    grid-column: 1 / -1 !important; /* 絶対に全幅にする */
    width: 100%;
  }
  .footer-center { text-align: center; margin-bottom: 15px; }
  .footer-right { text-align: right; }
  .footer p { margin: 2px 0; }

  /* --- サブオプション用スタイル --- */
  .sub-option-row {
    margin-top: 8px; 
    border-top: 1px dashed var(--border-color); 
    padding-top: 8px; 
    display: flex; 
    align-items: center; 
    justify-content: space-between; /* ラベル左、スイッチ右 */
    width: 100%;
    animation: fadeIn 0.3s ease;
  }
  .sub-option-label {
    font-size: 11px; 
    color: var(--sub-text-color);
  }

  /* 小さいスイッチ (.switch.mini) の定義 */
  .switch.mini { width: 28px; height: 16px; margin-left: 0; }
  .switch.mini .slider:before {
    height: 12px; width: 12px; /* 丸を小さく */
    left: 2px; bottom: 2px;    /* 位置調整 */
  }
  .switch.mini input:checked + .slider:before {
    transform: translateX(12px); /* 移動距離も短く */
  }

  @keyframes fadeIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }

/* --- 関連ツールリンク --- */
  .related-link-area {
    grid-column: 1 / -1; /* 全幅を使って中央寄せ */
    text-align: center;
    margin-top: -30px;   /* 説明文との距離を詰める */
    margin-bottom: 0px; /* 下のコンテンツとの距離 */
  }

  .related-tool-link {
    display: inline-block;
    font-size: 11px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px dashed var(--primary-color); /* 破線の下線 */
    padding-bottom: 2px;
    transition: all 0.2s;
  }

  .related-tool-link:hover {
    opacity: 0.8;
    border-bottom-style: solid; /* ホバー時は実線に */
    transform: translateY(-1px);
  }