:root{font-family:system-ui,-apple-system,sans-serif;line-height:1.5;color:#1a1a1a;background:#fafafa}body{margin:0;min-height:100vh}#root{max-width:720px;margin:0 auto;padding:24px}button{background:#2d6a4f;color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px}button:hover:not(:disabled){background:#1b4332}button:disabled{background:#95a5a6;cursor:not-allowed}input,select{padding:8px;border:1px solid #ccc;border-radius:6px;font-size:14px;width:100%;box-sizing:border-box}label{display:block;margin:12px 0 4px;font-size:13px;font-weight:500}.error{color:#c0392b;background:#fdecea;padding:8px 12px;border-radius:6px;margin:12px 0;font-size:14px}.card{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:20px;margin:16px 0}.row{display:flex;gap:12px;align-items:flex-end}.row>*{flex:1}