body{font:16px system-ui;background:#f1f4f8;color:#172536;margin:0}main{max-width:1200px;margin:40px auto;padding:24px;background:white;border-radius:12px}label{display:inline-block;margin:8px}input,button{font:inherit;padding:8px;margin:4px}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}.scroll{overflow:auto}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:10px;border-bottom:1px solid #ddd}#message{color:#9b2828}h1{font-size:24px}