:root{--card:#fff;--muted:#6b7280;--line:#e2e5ea;--brand:#1f6feb;--brand-ink:#fff;--radius:10px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:#f5f6f8;color:#1a1a1a}.center{min-height:100vh;display:grid;place-items:center;padding:24px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;width:100%;max-width:360px;box-shadow:0 1px 3px rgba(0,0,0,.05)}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}input{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:15px;background:#fff;color:inherit}.row{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}.card button{background:var(--brand);color:var(--brand-ink);border:none;border-radius:8px;padding:9px 16px;font-size:15px;font-weight:600;cursor:pointer}.card button:disabled{opacity:.5;cursor:default}.err-banner{margin-top:12px;padding:9px 11px;background:#fef2f2;border:1px solid #fecaca;color:#991b1b;border-radius:8px;font-size:13px}table{border-collapse:collapse;width:100%}td,th{text-align:left;padding:8px 12px;border-bottom:1px solid #e2e4e8;font-size:14px}th{background:#eef0f3;font-weight:600;position:-webkit-sticky;position:sticky;top:0}a{color:#2563eb}