.app-container{max-width:980px;margin:0 auto;padding:16px}.app-header{margin-bottom:16px;border-bottom:2px solid #f0f0f0;padding-bottom:16px}.app-header-row{display:flex;align-items:center;gap:20px;margin-bottom:12px}.app-logo{height:60px;width:auto}.app-header-content{flex:1}.app-title{margin:0}.app-subtitle{font-size:14px;color:#666;margin:4px 0 0}.app-attribution{font-size:12px;color:#888;margin:0}.loading-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#ffffffd9;display:flex;align-items:center;justify-content:center;z-index:9999}.loading-content{text-align:center}.loading-spinner{margin:0 auto 12px;width:36px;height:36px;border:3px solid #ddd;border-top-color:#333;border-radius:50%;animation:spin 1s linear infinite}.loading-text{font-size:16px;font-weight:600}@keyframes spin{to{transform:rotate(360deg)}}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.section-title{margin-top:16px}.section-help{font-size:12px;margin-top:-8px}.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;margin-bottom:12px}.category-item{border:1px solid #ddd;padding:8px;border-radius:6px;display:block}.form-actions{display:flex;gap:16px;align-items:center;margin-top:12px}.error-row{margin-top:12px;display:flex;gap:12px;align-items:center}.error-text{color:#c00}.categories-details{margin-top:16px}.categories-list{font-size:13px;margin-top:6px}.question-card{border:1px solid #ddd;padding:12px;margin-bottom:12px;background:#fff}.question-card--unanswered{background:#f5f5f5}.question-card--answered{background:#f0f0f0}.question-header{display:flex;justify-content:space-between}.question-meta{font-size:12px;color:#555}.question-option{margin-top:6px}.question-option--selected{background:#e8f4f8;border:1px solid #0288d1}.option-label{cursor:pointer}.option-label--disabled{cursor:default}.explanation-box{margin-top:12px;padding:10px;background:#f9f9f9;border:1px solid #e0e0e0;border-radius:4px;font-size:13px}.explanation-title{color:#1976d2}.explanation-text{margin:6px 0 0;line-height:1.5}.source-row{font-size:12px;margin-top:8px}.quiz-actions{display:flex;gap:16px;align-items:center}.quiz-pass{margin-left:auto}.quiz-redirect{text-align:center;color:#666;font-size:14px}.results-meta{font-size:13px}.score-table{border-collapse:collapse}.score-center{text-align:center}.review-list{margin-top:8px;font-size:15px}.review-item{margin-bottom:10px}.review-incorrect{color:#c00}.review-correct{color:#080}.results-actions{display:flex;gap:12px;margin-top:12px}.location-consent-box{margin-top:16px;padding:12px;background:#f5f5f5;border-radius:4px}.location-consent-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:14px}