:root{font-family:Inter,Arial,sans-serif;line-height:1.4;color:#111827;background:#f3f4f6}*{box-sizing:border-box}body{margin:0}a{color:#2563eb;text-decoration:none}main{max-width:1100px;margin:0 auto;padding:1rem}.card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:1rem;margin-bottom:1rem}input,select,button,textarea{font:inherit;padding:.5rem .625rem;border-radius:8px;border:1px solid #d1d5db}button{cursor:pointer;background:#111827;color:#fff;border:none}button.secondary{background:#6b7280}table{width:100%;border-collapse:collapse}th,td{padding:.55rem;border-bottom:1px solid #e5e7eb;text-align:left}.error{color:#b91c1c}.success{color:#166534}.info{color:#1d4ed8}