/* =========================================================
   AIイラストディレクションツール - 共通スタイル
   方針: BtoBクリエイティブツールらしい、白ベース・余白広め・
   落ち着いた印象。AIっぽい近未来デザインは避ける。
   ========================================================= */

:root {
  --color-bg: #FAFAF8;
  --color-surface: #FFFFFF;
  --color-border: #E6E4DF;
  --color-border-strong: #D4D1C9;
  --color-text: #26241F;
  --color-text-muted: #706C63;
  --color-text-faint: #9A968C;
  --color-accent: #C9683B;
  --color-accent-hover: #B15A30;
  --color-accent-soft: #F3E6DC;
  --color-success: #4C7A5A;
  --color-danger: #B4453B;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(30, 28, 24, 0.04), 0 4px 16px rgba(30, 28, 24, 0.05);
  --font-main: "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 14px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* ---------- レイアウト ---------- */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 60px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topnav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
}
.topnav-brand .logo-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #C9683B, #E0A458);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px;
}

.topnav-links {
  display: flex;
  gap: 4px;
}
.topnav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}
.topnav-links a:hover { background: var(--color-accent-soft); color: var(--color-text); }
.topnav-links a.active { background: var(--color-accent-soft); color: var(--color-accent); }

.main-content {
  flex: 1;
  padding: 24px;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

/* ---------- ワークスペース 3カラム ---------- */
.workspace-grid {
  display: grid;
  grid-template-columns: 300px 1fr 340px;
  gap: 20px;
  align-items: start;
}
@media (max-width: 1180px) {
  .workspace-grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.panel + .panel { margin-top: 16px; }

.panel-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.panel-title .step-badge {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.panel-sub {
  font-size: 12px;
  color: var(--color-text-faint);
  margin: -8px 0 14px;
}

.section-block { margin-bottom: 20px; }
.section-block:last-child { margin-bottom: 0; }
.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---------- サムネイル選択グリッド ---------- */
.thumb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.thumb-option {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 6px;
  background: var(--color-surface);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.thumb-option:hover { border-color: var(--color-border-strong); transform: translateY(-1px); }
.thumb-option.selected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}
.thumb-swatch {
  width: 100%;
  height: 34px;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
}
.thumb-swatch span { flex: 1; }
.thumb-option .thumb-label {
  font-size: 11px;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.3;
}

/* ---------- テイストアイコン(SVG) ---------- */
.taste-icon-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.04);
  background: #fff;
}
.taste-icon-wrap svg { display: block; width: 100%; height: 100%; }

/* ---------- チップ選択（線・色・構図・背景など） ---------- */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chip {
  padding: 6px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  font-size: 12px;
  background: var(--color-surface);
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chip:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.chip.selected {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
}
.chip .chip-swatch {
  width: 12px; height: 12px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,0.1);
}

/* ---------- フォーム類 ---------- */
textarea, input[type="text"], input[type="number"], select {
  width: 100%;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color 0.15s;
}
textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
}
textarea { resize: vertical; min-height: 96px; line-height: 1.7; }

.hint-text { font-size: 11.5px; color: var(--color-text-faint); margin-top: 6px; }
.example-list { font-size: 11.5px; color: var(--color-text-faint); margin-top: 8px; line-height: 1.8; }
.example-list li { margin-left: 16px; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-main);
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-primary:disabled { background: #D8C9BC; cursor: not-allowed; }
.btn-outline {
  background: var(--color-surface);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 6px 10px;
  font-size: 12px;
}
.btn-ghost:hover { color: var(--color-text); background: var(--color-bg); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-danger-outline {
  background: var(--color-surface);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* ---------- ブランドカラー登録 ---------- */
.brand-color-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.brand-color-item {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 8px 5px 5px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 11.5px;
  font-family: monospace;
}
.brand-color-swatch { width: 18px; height: 18px; border-radius: 50%; border: 1px solid rgba(0,0,0,0.1); }
.brand-color-remove { cursor: pointer; color: var(--color-text-faint); font-weight: 700; }
.brand-color-remove:hover { color: var(--color-danger); }
.hex-input-row { display: flex; gap: 6px; }
.hex-input-row input { flex: 1; }

/* ---------- アップロード ---------- */
.dropzone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 12.5px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: #FCFBF9;
}
.dropzone.dragover { border-color: var(--color-accent); background: var(--color-accent-soft); }
.dropzone i { font-size: 22px; color: var(--color-text-faint); display: block; margin-bottom: 8px; }

.ref-file-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.ref-file-item {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.ref-file-thumb {
  width: 40px; height: 40px; border-radius: 6px; object-fit: cover;
  background: var(--color-bg); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-faint); font-size: 16px;
}
.ref-file-info { flex: 1; min-width: 0; }
.ref-file-name { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ref-file-info select { margin-top: 4px; font-size: 11px; padding: 4px 6px; }
.ref-file-remove { cursor: pointer; color: var(--color-text-faint); font-size: 14px; }
.ref-file-remove:hover { color: var(--color-danger); }

.consent-box {
  margin-top: 14px;
  padding: 12px;
  background: #FBF7F1;
  border: 1px solid #EBDDCB;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  color: var(--color-text-muted);
}
.consent-box label { display: flex; gap: 8px; align-items: flex-start; cursor: pointer; color: var(--color-text); font-weight: 500; }
.consent-box input[type="checkbox"] { margin-top: 2px; width: 15px; height: 15px; flex-shrink: 0; }
.consent-box .consent-note { margin-top: 8px; color: var(--color-text-faint); }

/* ---------- 右カラム: 出力設定＋プレビュー ---------- */
.ratio-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.ratio-option {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  text-align: center;
  font-size: 10.5px;
  cursor: pointer;
  color: var(--color-text-muted);
}
.ratio-option.selected { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-soft); font-weight: 700; }
.ratio-box { width: 100%; height: 24px; margin: 0 auto 4px; display: flex; align-items: center; justify-content: center; }
.ratio-box-inner { background: var(--color-text-faint); opacity: 0.35; border-radius: 2px; }

.sns-preset-select { margin-top: 8px; }

.generate-bar {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.generate-count-row { display: flex; gap: 6px; align-items: center; }
.count-chip {
  flex: 1;
  text-align: center;
  padding: 8px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
}
.count-chip.selected { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-soft); }

/* ---------- プレビューエリア ---------- */
.preview-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--color-text-faint);
  text-align: center;
  gap: 10px;
  font-size: 12.5px;
}
.preview-empty i { font-size: 32px; }

.result-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ---------- 指示書結果カード（テキストベース） ---------- */
.result-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  position: relative;
}
.result-card .result-tag {
  position: absolute; top: 10px; left: 10px;
  background: rgba(38,36,31,0.78);
  color: #fff; font-size: 9.5px; padding: 3px 8px; border-radius: 4px;
  z-index: 2;
}
.result-card-body { padding: 14px 12px 10px; }
.result-format-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 12px 0;
  flex-wrap: wrap;
}
.result-format-tab {
  padding: 5px 10px;
  font-size: 10.5px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  font-weight: 600;
}
.result-format-tab.active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.result-prompt-text {
  background: #FBFAF8;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: monospace;
  font-size: 11.5px;
  white-space: pre-wrap;
  color: var(--color-text);
  max-height: 260px;
  overflow-y: auto;
  margin-top: 4px;
}
.result-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 6px;
  background: var(--color-surface);
}
.result-actions button {
  border: none; background: transparent;
  font-size: 10px; color: var(--color-text-muted);
  padding: 6px 2px;
  border-radius: 4px;
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
}
.result-actions button:hover { background: var(--color-accent-soft); color: var(--color-accent); }
.result-actions button.active { color: var(--color-accent); }

.loading-box {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 50px 10px; color: var(--color-text-muted); font-size: 12.5px;
}
.spinner {
  width: 30px; height: 30px; border-radius: 50%;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- モーダル ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(20,18,14,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 200; padding: 20px;
}
.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 640px; width: 100%;
  max-height: 88vh; overflow-y: auto;
  padding: 24px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}
.modal-box.modal-lg { max-width: 900px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.modal-header h3 { margin: 0; font-size: 15px; }
.modal-close { cursor: pointer; color: var(--color-text-faint); font-size: 18px; background: none; border: none; }
.modal-close:hover { color: var(--color-text); }

.prompt-view {
  background: #FBFAF8;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: monospace;
  font-size: 11.5px;
  white-space: pre-wrap;
  color: var(--color-text);
  margin-bottom: 10px;
}
.prompt-view[contenteditable="true"] { border-color: var(--color-accent); background: #fff; }

.quick-edit-suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.suggestion-chip {
  padding: 6px 10px; border-radius: 999px; border: 1px solid var(--color-border);
  font-size: 11.5px; cursor: pointer; color: var(--color-text-muted);
}
.suggestion-chip:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ---------- カード共通(履歴・案件・ブランド) ---------- */
.page-header { margin-bottom: 20px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.page-header h1 { font-size: 19px; margin: 0 0 4px; }
.page-header p { margin: 0; color: var(--color-text-muted); font-size: 12.5px; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.data-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.data-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }
.data-card-body { padding: 12px; }
.data-card-title { font-size: 12.5px; font-weight: 700; margin-bottom: 4px; }
.data-card-meta { font-size: 11px; color: var(--color-text-faint); }
.tag-badge {
  display: inline-block; font-size: 10px; padding: 2px 8px; border-radius: 999px;
  background: var(--color-accent-soft); color: var(--color-accent); font-weight: 700; margin-right: 4px;
}

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  max-width: 560px;
}
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 6px; color: var(--color-text-muted); }

.empty-state {
  text-align: center; padding: 60px 20px; color: var(--color-text-faint);
}

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: #2B2924; color: #fff; padding: 10px 18px; border-radius: 999px;
  font-size: 12.5px; z-index: 300; box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }

.table-simple { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.table-simple th, .table-simple td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); }
.table-simple th { color: var(--color-text-muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.03em; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 16px; box-shadow: var(--shadow-card);
}
.stat-card .stat-label { font-size: 11.5px; color: var(--color-text-faint); margin-bottom: 6px; }
.stat-card .stat-value { font-size: 22px; font-weight: 700; }

.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.switch { position: relative; width: 40px; height: 22px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute; inset: 0; background: var(--color-border-strong); border-radius: 999px; cursor: pointer; transition: background 0.2s;
}
.switch-slider::before {
  content: ""; position: absolute; width: 16px; height: 16px; left: 3px; top: 3px;
  background: #fff; border-radius: 50%; transition: transform 0.2s;
}
.switch input:checked + .switch-slider { background: var(--color-accent); }
.switch input:checked + .switch-slider::before { transform: translateX(18px); }

.notice-box {
  background: #FFF7ED; border: 1px solid #F3D9B1; color: #7A5313;
  border-radius: var(--radius-sm); padding: 10px 12px; font-size: 11.5px; margin-top: 10px;
}
.notice-box.info { background: #EEF5FF; border-color: #C8DDF7; color: #2A5A8C; }

footer.app-footer {
  text-align: center; padding: 20px; font-size: 11px; color: var(--color-text-faint);
}