:root{--bg:#f6f7f9;--panel:#ffffff;--text:#1a1a1a;--muted:#6b7280;--line:#e5e7eb;--brand:#ff7a1a;--brand-soft:#fff3ea;--danger:#dc2626;--ok:#16a34a;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Pretendard,-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Malgun Gothic,sans-serif;font-size:14px;line-height:1.5}a{color:inherit}h1{font-size:22px;margin:0 0 4px}h2{font-size:16px;margin:0 0 12px}p.desc{color:var(--muted);margin:0 0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 14px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap}.btn:hover{background:#f3f4f6}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{filter:brightness(.95)}.btn.danger{color:var(--danger)}.btn.sm{height:28px;padding:0 10px;font-size:12px}.input,.select,.textarea{width:100%;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;color:var(--text)}.textarea{height:auto;padding:10px 12px}.input:focus,.select:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.field{display:grid;grid-gap:6px;gap:6px;margin-bottom:16px}.field>label{font-weight:600;font-size:13px}.field .hint{color:var(--muted);font-size:12px}.badge{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11px;font-weight:600}.badge.on{background:#dcfce7;color:var(--ok)}.badge.off{background:#f3f4f6;color:var(--muted)}.badge.err{background:#fee2e2;color:var(--danger)}.alert{padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:13px}.alert.info{background:var(--brand-soft);color:#9a3f00}.alert.err{background:#fee2e2;color:var(--danger);word-break:break-all}