:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f6fa;color:#111827}main{min-height:100vh;padding:24px}.panel{max-width:860px;margin:0 auto;background:#ffffff;border:1px solid #d1d5db;border-radius:10px;padding:20px}h1{margin-bottom:8px;font-size:1.5rem}h1,p{margin-top:0}p{color:#4b5563}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-gap:12px;gap:12px;margin-bottom:16px}label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.9rem;color:#1f2937}input{padding:8px 10px;border:1px solid #cbd5e1;border-radius:6px;font-size:.95rem}input:focus{outline:2px solid #93c5fd;outline-offset:1px}.button-row{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 16px}button{border:1px solid #1d4ed8;background:#2563eb;color:#ffffff;border-radius:6px;padding:8px 12px;cursor:pointer;font-weight:600}button:disabled{cursor:not-allowed;opacity:.55}.status-box{border:1px solid #d1d5db;background:#f9fafb;border-radius:8px;padding:12px;margin-bottom:12px}.status-box ul{margin:0;padding-left:18px}.status-error{color:#b91c1c;font-weight:600}.note{margin-top:12px;font-size:.85rem;color:#374151}