:root{--text:#333;--text-muted:#666;--bg:#fafafa;--border:#ddd;--accent:#2f6feb;--danger:#d1242f;--ok:#1a7f37;color:var(--text);background:var(--bg);font:15px/1.5 system-ui,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0}button{font:inherit;cursor:pointer;border:1px solid var(--border);background:#fff;border-radius:6px;padding:6px 14px}button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font:inherit;border:1px solid var(--border);border-radius:4px;padding:6px 8px}table{border-collapse:collapse;width:100%}th,td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:6px 8px}th{background:#f0f0f0}.badge{border-radius:10px;padding:2px 8px;font-size:12px;display:inline-block}.badge.ok{color:var(--ok);background:#dafbe1}.badge.warn{color:#7d5a00;background:#fff1c2}.badge.bad{color:var(--danger);background:#ffebe9}.card{border:1px solid var(--border);background:#fff;border-radius:8px;margin-bottom:16px;padding:16px}.field{flex-direction:column;gap:4px;margin-bottom:12px;display:flex}.field label{font-size:13px;font-weight:600}.error-box{background:#ffebe9;border:1px solid #ffc1bc;border-radius:6px;margin-bottom:12px;padding:10px 12px}.app{max-width:1000px;margin:0 auto;padding:0 16px 40px}.topbar{border-bottom:1px solid var(--border);align-items:center;gap:24px;margin-bottom:24px;padding:16px 0;display:flex}.topbar h1{margin:0;font-size:20px}.topbar nav{gap:16px;display:flex}.topbar nav a{color:var(--text-muted);padding:4px 0;text-decoration:none}.topbar nav a.active{color:var(--accent);border-bottom:2px solid var(--accent);font-weight:600}