:root{font-family:Inter,system-ui,sans-serif}body{margin:0;background:#f5f7fb;color:#17202a}.container{max-width:900px;margin:2rem auto;padding:0 1rem}.card{background:#fff;border-radius:10px;padding:1rem;box-shadow:0 2px 8px #00000014;display:grid;gap:.75rem}input,button{padding:.5rem;font-size:.95rem}button{cursor:pointer;width:fit-content}.error{color:#b00020}.success{color:#146c2e}table{width:100%;border-collapse:collapse}th,td{text-align:left;border-bottom:1px solid #ddd;padding:.5rem}