:root {
  /* ===== 案B「Workshop Earth」 ベージュ基調 + アースカラー 6色 =====
     2026-05-20 適用: サイト全体のベージュ + テラコッタに統一し、 6ルールはアース系で識別 */
  --bg:  #ede4d3;   /* メイン背景 (サイトと同じ) */
  --bg2: #f5eee0;   /* カラム背景 (オフホワイト) */
  --bg3: #fbf6ec;   /* カード背景 (ivory) */
  --bg4: #e0d4be;   /* 見出し帯 (深ベージュ) */
  --bg5: #d4c5a3;   /* hover (もう一段深い) */
  --text:  #2a2218;   /* 本文・濃茶 */
  --text2: #5b4a35;   /* サブ・中茶 */
  --text3: #8b7861;   /* キャプション・淡茶 */
  --accent:  #c8541e;
  --accent2: #b04a18;
  --accent-soft-08: rgba(200,84,30,0.08);
  --accent-soft-12: rgba(200,84,30,0.12);
  --accent-soft-18: rgba(200,84,30,0.18);
  --accent-soft-25: rgba(200,84,30,0.25);
  --border:        rgba(42,34,24,0.12);
  --border-strong: rgba(42,34,24,0.22);
  --shadow:        rgba(42,34,24,0.10);
  --danger:  #a14242;   /* ボルドー */
  --warn:    #b89968;   /* マスタード */
  --success: #6b8e6f;   /* セージグリーン */
  --info:    #6a7c9a;   /* ダスティブルー */

  /* 機能カテゴリ別カラー (アースパレット) */
  --cat-replace: #6b8e6f;   /* 置換: セージグリーン */
  --cat-add:     #b89968;   /* 追加: マスタード */
  --cat-delete:  #a14242;   /* 削除: ボルドー */
  --cat-number:  #6a7c9a;   /* 連番: ダスティブルー */
  --cat-date:    #b88a4d;   /* 日付: キャメル */
  --cat-case:    #c8541e;   /* ケース: テラコッタ */
  --cat-template:#82624a;   /* テンプレ: ココアブラウン */
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  line-height: 1.6;
}
input, select, textarea, button { font: inherit; }
input[type="text"], input[type="number"], select { font-size: 14px; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }

/* ===== Header ===== */
header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 10px;
}
header h1 {
  font-family: "Cormorant Garamond", "Yu Mincho", serif;
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
header h1 .ver {
  font-size: 0.65rem;
  color: var(--text3);
  background: var(--bg3);
  padding: 2px 6px;
  border-radius: 4px;
  -webkit-text-fill-color: var(--text3);
  margin-left: 6px;
  font-weight: 600;
}
.header-right { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.header-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  transition: all 0.15s;
}
.header-btn:hover { background: var(--bg4); color: var(--text); }
.header-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.header-btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff8ec;
  font-weight: 800;
  border: none;
}
.header-btn.primary:hover { filter: brightness(1.08); }
.header-btn.icon { padding: 6px 10px; }
.header-link {
  color: var(--text2);
  text-decoration: none;
  font-size: 0.78rem;
  padding: 5px 10px;
  border-radius: 6px;
  font-family: "Cormorant Garamond", "Yu Mincho", serif;
  letter-spacing: 0.12em;
}
.header-link .em { color: #c8541e; }   /* サイトのトップロゴと同じテラコッタ */
.header-link:hover { color: var(--accent); }
.header-link:hover .em { color: var(--accent); }

/* ===== レイアウト ===== */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1.2fr);
  min-height: calc(100vh - 53px);
}
.col {
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.col:last-child { border-right: none; }

.panel-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(42,34,24,0.04);
  border-bottom: 1px solid var(--border);
  font-size: 0.74rem;
  color: var(--text2);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.panel-label .num {
  background: var(--accent);
  color: #fff8ec;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 800;
}
.panel-label .meta {
  margin-left: auto;
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: none;
  font-weight: 600;
  letter-spacing: 0;
}

/* ===== ファイルカラム ===== */
.dropzone {
  border: 2px dashed var(--border-strong);
  margin: 12px;
  padding: 22px 16px;
  border-radius: 10px;
  text-align: center;
  color: var(--text2);
  font-size: 0.85rem;
  background: rgba(42,34,24,0.025);
  transition: all 0.18s;
  cursor: pointer;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft-08);
  color: var(--text);
}
.dropzone .big { font-size: 1.7rem; margin-bottom: 6px; }
.dropzone .sub { font-size: 0.74rem; color: var(--text3); margin-top: 4px; }
.dropzone .pickers {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 10px;
  flex-wrap: wrap;
}
.dropzone .pickers button {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
}
.dropzone .pickers button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.file-toolbar {
  display: flex;
  gap: 4px;
  padding: 0 12px 8px;
  flex-wrap: wrap;
  align-items: center;
}
.file-toolbar .tb-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 4px 10px;
  border-radius: 5px;
  font-size: 0.74rem;
}
.file-toolbar .tb-btn:hover { color: var(--text); border-color: var(--border-strong); }
.file-toolbar .tb-btn.danger { color: var(--danger); border-color: rgba(161,66,66,0.30); }
.file-toolbar .spacer { flex: 1; }

.file-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 12px 12px;
  min-height: 200px;
}
.file-list:empty::before {
  content: "ファイルが選択されていません";
  display: block;
  text-align: center;
  color: var(--text3);
  font-size: 0.8rem;
  padding: 30px 10px;
}
.file-row {
  padding: 7px 10px;
  display: flex;
  gap: 8px;
  align-items: center;
  border: 1px solid transparent;
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  cursor: default;
  transition: background 0.12s;
}
.file-row:hover { background: rgba(42,34,24,0.04); }
.file-row.dragging { opacity: 0.4; }
.file-row.drag-over { border-top: 2px solid var(--accent); }
.file-row .check {
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--text3);
  border-radius: 3px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.file-row .check.on {
  background: var(--accent);
  border-color: var(--accent);
}
.file-row .check.on::after {
  content: "✓";
  color: #fff8ec;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
}
.file-row .grip {
  color: var(--text3);
  cursor: grab;
  font-size: 0.85rem;
  user-select: none;
  flex-shrink: 0;
}
.file-row .grip:active { cursor: grabbing; }
.file-row .icon {
  font-size: 0.95rem;
  flex-shrink: 0;
}
.file-row .names {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.file-row .name {
  color: var(--text);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.77rem;
}
.file-row .new-name {
  color: var(--success);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.74rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-row .new-name.same { color: var(--text3); }
.file-row .badge-warn {
  background: rgba(161,66,66,0.18);
  color: var(--danger);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.66rem;
  flex-shrink: 0;
  font-weight: 700;
}
.file-row .remove-btn {
  background: none;
  border: none;
  color: var(--text3);
  font-size: 0.85rem;
  padding: 2px 6px;
  border-radius: 3px;
  flex-shrink: 0;
}
.file-row .remove-btn:hover { color: var(--danger); background: rgba(161,66,66,0.10); }

/* ===== ルールパイプライン ===== */
.rule-pipeline {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  min-height: 250px;
}
.rule-pipeline:empty::before {
  content: "上のボタンからルールを追加";
  display: block;
  text-align: center;
  color: var(--text3);
  font-size: 0.8rem;
  padding: 40px 10px;
}
.rule {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--text3);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
  font-size: 0.82rem;
  transition: border-color 0.15s;
}
.rule.dragging { opacity: 0.4; }
.rule.drag-over { border-top: 2px solid var(--accent); }
.rule.disabled { opacity: 0.5; }
.rule .rule-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.rule .rule-handle {
  color: var(--text3);
  cursor: grab;
  font-size: 0.85rem;
  user-select: none;
}
.rule .rule-name {
  font-weight: 700;
  font-size: 0.85rem;
  flex: 1;
}
.rule .rule-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
}
.rule .rule-toggle.on { color: var(--success); border-color: rgba(107,142,111,0.40); }
.rule .rule-remove {
  background: none;
  border: none;
  color: var(--text3);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.85rem;
}
.rule .rule-remove:hover { color: var(--danger); background: rgba(161,66,66,0.10); }
.rule .rule-body {
  display: grid;
  gap: 8px;
}
.rule .rule-body .field {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.rule .rule-body .field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.rule .rule-body .field-row.three { grid-template-columns: 1fr 1fr 1fr; }
.rule .rule-body label {
  font-size: 0.7rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.rule .rule-body input,
.rule .rule-body select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 8px;
  border-radius: 5px;
  font-size: 0.8rem;
  font-family: inherit;
  width: 100%;
  min-width: 0;
}
.rule .rule-body input:focus,
.rule .rule-body select:focus {
  outline: none;
  border-color: var(--accent);
}
.rule .rule-body input[type="checkbox"] {
  width: 14px;
  height: 14px;
  margin-right: 5px;
  accent-color: var(--accent);
}
.rule .rule-body .toggles {
  display: flex;
  gap: 12px;
  font-size: 0.72rem;
  color: var(--text2);
  flex-wrap: wrap;
}
.rule .rule-body .toggles label {
  display: flex;
  align-items: center;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.74rem;
  cursor: pointer;
  color: var(--text2);
}

/* カテゴリ別 */
.rule.replace { border-left-color: var(--cat-replace); }
.rule.replace .rule-name { color: var(--cat-replace); }
.rule.add     { border-left-color: var(--cat-add); }
.rule.add .rule-name { color: var(--cat-add); }
.rule.delete  { border-left-color: var(--cat-delete); }
.rule.delete .rule-name { color: var(--cat-delete); }
.rule.number  { border-left-color: var(--cat-number); }
.rule.number .rule-name { color: var(--cat-number); }
.rule.date    { border-left-color: var(--cat-date); }
.rule.date .rule-name { color: var(--cat-date); }
.rule.case    { border-left-color: var(--cat-case); }
.rule.case .rule-name { color: var(--cat-case); }
.rule.template{ border-left-color: var(--cat-template); }
.rule.template .rule-name { color: var(--cat-template); }

/* ルール追加バー */
.add-rule-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 14px 12px;
  background: linear-gradient(180deg, rgba(200,84,30,0.06), rgba(42,34,24,0.025));
  border-bottom: 1px solid var(--border);
}
.add-rule-btn {
  padding: 8px 14px;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 800;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  transition: all 0.15s;
  letter-spacing: 0.02em;
}
.add-rule-btn:hover { background: var(--bg4); }
.add-rule-btn.replace { color: var(--cat-replace); border-color: rgba(107,142,111,0.45); }
.add-rule-btn.add     { color: var(--cat-add);     border-color: rgba(184,153,104,0.45); }
.add-rule-btn.delete  { color: var(--cat-delete);  border-color: rgba(161,66,66,0.45); }
.add-rule-btn.number  { color: var(--cat-number);  border-color: rgba(106,124,154,0.45); }
.add-rule-btn.date    { color: var(--cat-date);    border-color: rgba(184,138,77,0.45); }
.add-rule-btn.case    { color: var(--cat-case);    border-color: rgba(200,84,30,0.45); }
.add-rule-btn.template{ color: var(--cat-template);border-color: rgba(130,98,74,0.45); }
.add-rule-btn:hover.replace { background: rgba(107,142,111,0.12); }
.add-rule-btn:hover.add     { background: rgba(184,153,104,0.12); }
.add-rule-btn:hover.delete  { background: rgba(161,66,66,0.10); }
.add-rule-btn:hover.number  { background: rgba(106,124,154,0.12); }
.add-rule-btn:hover.date    { background: rgba(184,138,77,0.12); }
.add-rule-btn:hover.case    { background: rgba(200,84,30,0.10); }
.add-rule-btn:hover.template{ background: rgba(130,98,74,0.12); }

/* ===== プレビューカラム ===== */
.preview-summary {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 12px;
  font-size: 0.8rem;
  color: var(--text2);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.preview-summary .stat { color: var(--accent); font-weight: 700; }
.preview-summary .stat-success { color: var(--success); font-weight: 700; }
.preview-summary .warn { color: var(--danger); font-weight: 700; }

.diff-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 12px;
  min-height: 200px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.74rem;
}
.diff-list:empty::before {
  content: "ファイルとルールを設定するとプレビューが表示されます";
  display: block;
  text-align: center;
  color: var(--text3);
  font-size: 0.8rem;
  padding: 40px 10px;
  font-family: -apple-system, "Segoe UI", sans-serif;
}
.diff-line {
  padding: 5px 10px;
  border-radius: 4px;
  background: rgba(42,34,24,0.04);
  margin-bottom: 3px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.diff-line.warn-row { background: rgba(161,66,66,0.08); }
.diff-line.same-row { opacity: 0.5; }
.diff-line .from {
  color: var(--text3);
  text-decoration: line-through;
  flex-shrink: 0;
}
.diff-line .arrow { color: var(--text3); }
.diff-line .to {
  color: var(--success);
  flex: 1;
  word-break: break-all;
}
.diff-line .badge-warn {
  background: rgba(161,66,66,0.18);
  color: var(--danger);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.66rem;
  font-weight: 700;
}

/* ===== 出力モード ===== */
.output-section {
  border-top: 1px solid var(--border);
  padding: 12px;
  background: rgba(42,34,24,0.04);
}
.output-modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 10px;
}
.output-mode {
  position: relative;
  padding: 18px 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  text-align: center;
  font-size: 1rem;
  background: var(--bg3);
  color: var(--text2);
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.output-mode .mode-badge {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--success);
  color: #fff8ec;
  padding: 2px 10px;
  border-radius: 50px;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(107,142,111,0.4);
}
.output-mode:hover { border-color: var(--border-strong); }
.output-mode.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft-08);
}
.output-mode .mode-name {
  display: block;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.2;
}
.output-mode .mode-sub {
  display: block;
  font-size: 0.74rem;
  opacity: 0.75;
  font-weight: 500;
}
.output-mode:disabled { opacity: 0.4; cursor: not-allowed; }

.output-options {
  font-size: 0.76rem;
  color: var(--text2);
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 0;
}
.output-options label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.output-options input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

.undo-redo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin: 8px 0 4px;
}
.undo-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  transition: all 0.15s;
}
.undo-btn:hover:not(:disabled) {
  background: var(--bg4);
  color: var(--text);
  border-color: var(--border-strong);
}
.undo-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.apply-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff8ec;
  border: none;
  padding: 14px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-top: 8px;
  transition: all 0.15s;
  box-shadow: 0 4px 14px rgba(200,84,30,0.22);
}
.apply-btn:hover { filter: brightness(1.08); }
.apply-btn:disabled { opacity: 0.4; cursor: not-allowed; filter: grayscale(0.3); }

/* ===== トースト ===== */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--bg3);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 0.86rem;
  box-shadow: 0 6px 20px var(--shadow);
  animation: toast-in 0.25s ease;
  max-width: 360px;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.info { border-left-color: var(--info); }
@keyframes toast-in {
  from { transform: translateX(40px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes toast-out {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(40px); opacity: 0; }
}
.toast.removing { animation: toast-out 0.2s ease forwards; }

/* ===== モーダル ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(42,34,24,0.45);
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 20px;
}
.modal {
  background: var(--bg2);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  max-width: 540px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 40px rgba(42,34,24,0.20);
}
.modal-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-head h3 { font-size: 1.05rem; font-weight: 700; }
.modal-head .close {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 1.2rem;
  padding: 4px 8px;
}
.modal-body {
  padding: 18px 20px;
  overflow-y: auto;
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.65;
}
.modal-body h4 { color: var(--text); margin: 14px 0 6px; font-size: 0.92rem; }
.modal-body p { margin-bottom: 8px; }
.modal-body ul { margin-left: 20px; margin-bottom: 8px; }
.modal-body code {
  background: var(--bg3);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent);
  font-size: 0.84em;
}
.modal-foot {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.modal-foot button {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.85rem;
}
.modal-foot button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff8ec;
  border: none;
  font-weight: 700;
}

/* プリセット項目 */
.preset-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 280px;
  overflow-y: auto;
}
.preset-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 7px;
}
.preset-item .preset-info { flex: 1; min-width: 0; }
.preset-item .preset-name {
  color: var(--text);
  font-weight: 700;
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.preset-item .preset-meta {
  color: var(--text3);
  font-size: 0.74rem;
  margin-top: 2px;
}
.preset-item button {
  padding: 5px 10px;
  font-size: 0.78rem;
}

/* ===== セキュリティ・プライバシーセクション ===== */
.security-section {
  padding: 40px 24px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg4) 100%);
  border-top: 1px solid var(--border);
}
.security-inner {
  max-width: 1100px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(107,142,111,0.06), rgba(107,142,111,0.04));
  border: 1px solid rgba(107,142,111,0.20);
  border-radius: 14px;
  padding: 28px;
}
.security-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(107,142,111,0.18);
}
.security-head .lock-icon { font-size: 1.8rem; }
.security-head h2 { font-size: 1.15rem; color: var(--success); }
.security-head .sub { color: var(--text2); font-size: 0.84rem; margin-top: 2px; }
.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.security-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 14px;
}
.security-item .sec-icon { font-size: 1.3rem; margin-bottom: 6px; }
.security-item h4 { font-size: 0.88rem; margin-bottom: 5px; color: var(--success); }
.security-item p { font-size: 0.8rem; color: var(--text2); line-height: 1.6; }
.security-promise {
  background: rgba(107,142,111,0.06);
  border-left: 3px solid var(--success);
  padding: 12px 16px;
  border-radius: 5px;
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.65;
}
.security-promise .label {
  display: inline-block;
  background: var(--success);
  color: #fff8ec;
  padding: 2px 9px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 800;
  margin-right: 10px;
  letter-spacing: 0.08em;
}

/* ===== フッター ===== */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 28px 20px;
  text-align: center;
  color: var(--text3);
  font-size: 0.8rem;
}
footer a { color: var(--text2); text-decoration: none; margin: 0 8px; }
footer a:hover { color: var(--accent); }
footer .copyright { margin-top: 8px; font-size: 0.74rem; color: var(--text3); }

/* ===== レスポンシブ ===== */
@media (max-width: 1100px) {
  .layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  }
  .col-preview {
    grid-column: 1 / -1;
    border-top: 1px solid var(--border);
    border-right: none;
  }
}
@media (max-width: 768px) {
  header { padding: 8px 12px; }
  header h1 { font-size: 1rem; }
  .header-btn { padding: 5px 10px; font-size: 0.78rem; }
  .layout {
    grid-template-columns: 1fr;
  }
  .col {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .col:last-child { border-bottom: none; }
  .file-list, .rule-pipeline, .diff-list { min-height: 150px; max-height: 350px; }
  .add-rule-bar { padding: 10px 8px; }
  .add-rule-btn { padding: 5px 9px; font-size: 0.72rem; }
  .security-section { padding: 30px 14px; }
  .security-inner { padding: 20px 16px; }
}