.zbpcb-app { max-width: 900px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
.zbpcb-progress { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 20px; }
.zbpcb-progress-step { padding: 6px 10px; background: #eee; border-radius: 4px; font-size: 12px; color: #666; }
.zbpcb-progress-step.active { background: #2271b1; color: #fff; }
.zbpcb-progress-step.done { background: #d7f5dd; color: #1a7a34; }
.zbpcb-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; margin-bottom: 20px; }
.zbpcb-card { border: 2px solid #ddd; border-radius: 8px; padding: 12px; background: #fff; cursor: pointer; text-align: left; }
.zbpcb-card:hover { border-color: #999; }
.zbpcb-card.selected { border-color: #2271b1; background: #f0f6fc; }
.zbpcb-card img { width: 100%; height: 80px; object-fit: contain; margin-bottom: 8px; }
.zbpcb-card-title { font-weight: 600; font-size: 13px; }
.zbpcb-custom-entry { margin: 6px 0 18px; padding: 12px; border: 1px dashed #bbb; border-radius: 8px; background: #fafafa; }
.zbpcb-custom-entry label { display: block; font-size: 13px; color: #555; margin-bottom: 6px; }
.zbpcb-custom-row { display: flex; gap: 8px; }
.zbpcb-custom-row input { flex: 1; padding: 8px; border: 1px solid #ccc; border-radius: 4px; }
.zbpcb-compat { border-radius: 8px; padding: 14px; margin: 16px 0; border: 1px solid #ddd; }
.zbpcb-compat-pass { background: #eefbf0; border-color: #b7e5c0; }
.zbpcb-compat-warning { background: #fff8e5; border-color: #ecd28a; }
.zbpcb-compat-fail { background: #fdeceb; border-color: #eeb3ae; }
.zbpcb-compat ul { margin: 8px 0 0 18px; }
.zbpcb-check-fail { color: #a3221f; }
.zbpcb-check-warning { color: #8a6300; }
.zbpcb-check-pass { color: #1a7a34; }
.zbpcb-nav { display: flex; justify-content: space-between; gap: 10px; margin-top: 16px; }
.zbpcb-btn { padding: 10px 18px; border-radius: 6px; border: none; cursor: pointer; font-size: 14px; }
.zbpcb-btn-primary { background: #2271b1; color: #fff; }
.zbpcb-btn-primary:disabled { background: #b9d3e6; cursor: not-allowed; }
.zbpcb-btn-secondary { background: #eee; color: #333; }
.zbpcb-form { display: flex; flex-direction: column; gap: 12px; max-width: 460px; }
.zbpcb-form input, .zbpcb-form textarea { width: 100%; padding: 8px; border: 1px solid #ccc; border-radius: 4px; }
.zbpcb-error { color: #a3221f; }
.zbpcb-loading { text-align: center; padding: 40px; color: #666; }