:root{--bg: #f4f6f8;--card: #fff;--text: #1a2332;--muted: #5c6b7a;--accent: #2563eb;--danger: #dc2626;--border: #d8dee6;font-family:Hiragino Sans,Noto Sans JP,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}#app{max-width:720px;margin:0 auto;padding:2rem 1rem}body.wide #app{max-width:960px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.5rem;box-shadow:0 4px 24px #1a23320f}h1{margin:0 0 1rem;font-size:1.35rem}label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:.25rem}input,select,button{font:inherit}input,select{width:100%;padding:.6rem .75rem;border:1px solid var(--border);border-radius:8px;margin-bottom:.9rem}button{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:.65rem 1rem;cursor:pointer}button.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}button.danger{background:var(--danger)}.field-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem}.error{background:#fef2f2;color:var(--danger);padding:.75rem;border-radius:8px;margin-bottom:1rem;font-size:.9rem}.success{background:#ecfdf5;color:#047857;padding:.75rem;border-radius:8px;margin-bottom:1rem}nav{display:flex;gap:1rem;margin-bottom:1rem;font-size:.9rem}nav a{color:var(--accent);text-decoration:none}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:.5rem;border-bottom:1px solid var(--border)}.muted{color:var(--muted);font-size:.85rem}.badge{display:inline-block;font-size:.75rem;padding:.15rem .45rem;border-radius:4px;margin-left:.25rem}.badge-green{background:#ecfdf5;color:#047857}.badge-yellow{background:#fffbeb;color:#b45309}.badge-red{background:#fef2f2;color:var(--danger)}.due-ok{color:#047857}.due-near{color:#b45309;font-weight:600}.due-over{color:var(--danger);font-weight:700}.followup-list{margin:0;padding-left:1.1rem}.followup-list li{margin-bottom:.75rem}