/* --- 基本設定 --- */
:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-color: #1e293b;
  --border-color: #e2e8f0;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  padding-bottom: 40px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
}

/* --- ヘッダー --- */
.header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 24px 0;
  text-align: center;
  margin-bottom: 24px;
}

.logo {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.subtitle {
  font-size: 0.9rem;
  color: #64748b;
}

/* --- カードデザイン --- */
.card, .result-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* --- 画像アップロードエリア --- */
.upload-area {
  border: 2px dashed #cbd5e1;
  border-radius: 8px;
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  background: #f8fafc;
  transition: all 0.2s ease;
  margin-bottom: 24px;
}

.upload-area:hover, .upload-area.dragover {
  border-color: var(--primary);
  background: #eff6ff;
}

.upload-area .icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 8px;
}

.upload-text {
  font-weight: bold;
  color: #334155;
}

.upload-subtext {
  font-size: 0.85rem;
  color: #94a3b8;
}

#preview-container img {
  max-width: 100%;
  max-height: 250px;
  border-radius: 8px;
  margin-bottom: 12px;
  object-fit: contain;
}

/* --- フォーム入力 --- */
.form-group-title {
  margin-bottom: 16px;
}

.form-group-title h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.form-group-title p {
  font-size: 0.85rem;
  color: #64748b;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.form-item {
  display: flex;
  flex-direction: column;
}

.form-item.full-width {
  grid-column: span 2;
}

.form-item label {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #475569;
}

.form-item input, .form-item textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.95rem;
  background: #fff;
  transition: border-color 0.2s;
}

.form-item input:focus, .form-item textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* --- ボタン --- */
.btn-primary {
  width: 100%;
  background: var(--primary);
  color: white;
  border: none;
  padding: 14px;
  font-size: 1rem;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-primary:disabled {
  background: #cbd5e1;
  cursor: not-allowed;
}

.btn-secondary {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}

.btn-secondary:hover {
  background: #e2e8f0;
}

.btn-sm {
  font-size: 0.8rem;
  padding: 4px 8px;
}

.btn-lg {
  padding: 16px;
  font-size: 1.1rem;
}

/* --- ローディング --- */
#loading-section {
  text-align: center;
  padding: 48px 24px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #e2e8f0;
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  font-weight: bold;
  font-size: 1.1rem;
}

.loading-subtext {
  font-size: 0.85rem;
  color: #64748b;
  margin-top: 4px;
}

/* --- 生成結果表示 --- */
.action-bar-top {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
  font-size: 1rem;
  color: #334155;
}

.result-text {
  font-size: 0.95rem;
  color: #1e293b;
}

.result-text.bold {
  font-weight: bold;
  font-size: 1.05rem;
}

.result-text.multiline {
  white-space: pre-wrap;
}

.grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 600px) {
  .form-grid, .grid-2col {
    grid-template-columns: 1fr;
  }
  .form-item.full-width {
    grid-column: span 1;
  }
}

.feature-list {
  padding-left: 20px;
  font-size: 0.95rem;
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  background: #eff6ff;
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 16px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* --- 通知トースト --- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(15, 23, 42, 0.9);
  color: white;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: bold;
  z-index: 1000;
  transition: opacity 0.3s ease;
}

.hidden {
  display: none !important;
}

/* --- アフィリエイト枠・バナー表示調整 --- */
.affiliate-card {
  margin-top: 24px;
  padding: 20px;
  background: #f8f9fa;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  text-align: center;
}

.affiliate-card h3 {
  font-size: 1rem;
  color: #333;
  margin-bottom: 12px;
}

.affiliate-banner-placeholder {
  display: block !important;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.affiliate-banner-placeholder a {
  display: inline-block !important;
}

.affiliate-banner-placeholder img {
  max-width: 100%;
  height: auto;
  display: inline-block !important;
  visibility: visible !important;
  opacity: 1 !important;
}

/* --- フリマ出品におすすめ商品セクション --- */
.recommend-section {
  margin-top: 20px;
}

.recommend-title {
  font-size: 1.05rem;
  color: #334155;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 600px) {
  .recommend-grid {
    grid-template-columns: 1fr;
  }
}

.recommend-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.recommend-item-title {
  font-size: 0.95rem;
  font-weight: bold;
  color: var(--text-color);
  margin-bottom: 6px;
}

.recommend-item-desc {
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 12px;
  flex-grow: 1;
}

.recommend-btn {
  text-align: center;
  text-decoration: none;
  display: block;
}

/* --- AI推定価格表示（追加） --- */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

@media (max-width: 600px) {
  .price-grid {
    grid-template-columns: 1fr;
  }
}

.price-item {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}

.price-label {
  display: block;
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 4px;
}

.price-val {
  font-size: 1.15rem;
  font-weight: bold;
  color: #1e293b;
}

.price-recommended-box {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.price-recommended-label {
  font-weight: bold;
  color: var(--primary);
  font-size: 0.95rem;
}

.price-recommended-val {
  font-weight: bold;
  color: var(--primary);
  font-size: 1.4rem;
}

.price-disclaimer {
  font-size: 0.75rem;
  color: #94a3b8;
  margin-top: 8px;
}

/* （前略：既存のスタイルは変更せずそのまま維持） */

/* --- アフィリエイト枠・PR表示追加スタイル（最末尾に追記） --- */
.recommend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.recommend-header .recommend-title {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.pr-label {
  font-size: 0.75rem;
  color: #94a3b8;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  padding: 1px 6px;
  font-weight: 500;
}

.recommend-btn.disabled {
  background-color: #f1f5f9;
  color: #94a3b8;
  border-color: #cbd5e1;
  cursor: not-allowed;
  pointer-events: none;
  text-decoration: none;
}

/* （前略：アップロードいただいたCSSコードはそのまま維持） */

/* --- フリマ出品におすすめセクション＆PR表示スタイル（最末尾に追記） --- */
.recommend-section {
  margin-top: 20px;
}

.recommend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.recommend-title {
  font-size: 1.05rem;
  color: #334155;
  margin-bottom: 0;
}

.pr-label {
  font-size: 0.75rem;
  color: #94a3b8;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  padding: 1px 6px;
  font-weight: 500;
}

.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 600px) {
  .recommend-grid {
    grid-template-columns: 1fr;
  }
}

.recommend-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.recommend-item-title {
  font-size: 0.95rem;
  font-weight: bold;
  color: var(--text-color);
  margin-bottom: 6px;
}

.recommend-item-desc {
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 12px;
  flex-grow: 1;
}

.recommend-btn {
  text-align: center;
  text-decoration: none;
  display: block;
}