*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#1a1a1a}.app-main{font-family:inherit;padding:32px;margin:0 auto;width:100%}.app-header{position:-webkit-sticky;position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #e5e5e5}.app-header-inner{display:flex;align-items:center;gap:16px;padding:10px 32px;max-width:1100px;margin:0 auto}.app-header-brand{font-weight:700;font-size:16px;color:var(--brand-primary,#0b5cff);text-decoration:none;white-space:nowrap}.app-header-nav{display:flex;align-items:center;gap:4px;flex:1 1;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.app-header-nav::-webkit-scrollbar{display:none}.app-header-nav a{font-size:14px;color:#444;text-decoration:none;padding:8px 10px;border-radius:6px;white-space:nowrap}.app-header-nav a:hover{background:#f2f4f8}.app-header-signout button{font-size:13px;padding:8px 12px;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;white-space:nowrap}@media (max-width:640px){.app-main{padding:16px}.app-header-inner{padding:8px 12px;gap:10px}.app-main a{padding-top:2px;padding-bottom:2px}.app-main button,.app-main input,.app-main select,.app-main textarea{font-size:16px}}