:root{color-scheme:light;--bg: #f5f7fa;--surface: #ffffff;--text: #1a2332;--muted: #5c6b7a;--primary: #1e3a5f;--primary-light: #2d5a8a;--accent: #e8f0f8;--border: #d8e0ea;--success: #1f7a4c;--danger: #b42318;--star: #f5a623;--radius: 16px;--shadow: 0 4px 20px rgba(30, 58, 95, .08);font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,system-ui,sans-serif;line-height:1.5;font-weight:400;color:var(--text);background:var(--bg)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{margin:0;min-height:100%}body{min-height:100dvh}button,input,select{font:inherit}button{cursor:pointer;border:none;background:none}.app-shell{min-height:100dvh;display:flex;flex-direction:column}.screen{flex:1;display:flex;flex-direction:column;padding:24px;max-width:1200px;margin:0 auto;width:100%}.screen-center{justify-content:center;align-items:center;text-align:center}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.title{margin:0 0 8px;font-size:1.75rem;font-weight:700;color:var(--primary)}.subtitle{margin:0 0 24px;color:var(--muted);font-size:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:12px 24px;border-radius:12px;font-size:1.05rem;font-weight:600;transition:transform .1s,opacity .15s}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-light)}.btn-secondary{background:var(--accent);color:var(--primary);border:1px solid var(--border)}.btn-danger{background:#fdecea;color:var(--danger);border:1px solid #f5c2c0}.btn-block{width:100%}.form-group{margin-bottom:20px;text-align:left}.form-label{display:block;margin-bottom:8px;font-weight:600;font-size:.95rem}.form-label .optional{font-weight:400;color:var(--muted);font-size:.85rem}.choice-grid{display:grid;gap:10px}.choice-btn{min-height:52px;padding:12px 16px;border-radius:12px;border:2px solid var(--border);background:var(--surface);font-weight:600;text-align:center}.choice-btn.selected{border-color:var(--primary);background:var(--accent);color:var(--primary)}.error-banner{background:#fdecea;border:1px solid #f5c2c0;color:var(--danger);padding:16px;border-radius:12px;margin-bottom:16px;text-align:left;white-space:pre-wrap}.progress-bar{height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin-bottom:16px}.progress-fill{height:100%;background:var(--primary);transition:width .3s ease}.trial-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:12px}.trial-prompt{text-align:center;font-size:1.2rem;font-weight:700;margin:0 0 20px;color:var(--primary)}.review-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;flex:1}@media(max-width:768px){.review-pair{grid-template-columns:1fr}}.review-card{display:flex;flex-direction:column;border:2px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow:hidden;transition:border-color .15s,box-shadow .15s}.review-card.selectable{cursor:pointer}.review-card.selectable:hover:not(.disabled){border-color:var(--primary-light);box-shadow:var(--shadow)}.review-card.disabled{opacity:.6;pointer-events:none}.review-card-header{padding:16px 16px 0}.stars{color:var(--star);font-size:1.25rem;letter-spacing:2px}.reviewer-meta{margin-top:8px;font-size:.85rem;color:var(--muted)}.review-text{padding:16px;flex:1;font-size:.95rem;line-height:1.7;white-space:pre-wrap}.review-footer{padding:12px 16px;border-top:1px solid var(--border);font-size:.85rem;color:var(--muted)}.select-hint{padding:12px;text-align:center;background:var(--accent);color:var(--primary);font-weight:600;font-size:.9rem}.stats-grid{display:grid;gap:16px}.stat-card{background:var(--accent);border-radius:12px;padding:16px}.stat-value{font-size:2rem;font-weight:700;color:var(--primary)}.stat-label{font-size:.9rem;color:var(--muted)}.table-wrap{overflow-x:auto;margin-top:12px}table{width:100%;border-collapse:collapse;font-size:.85rem}th,td{padding:8px 12px;border-bottom:1px solid var(--border);text-align:left}th{background:var(--accent);font-weight:600}.actions-row{display:flex;flex-direction:column;gap:12px;margin-top:24px}.admin-section{margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}