*{box-sizing:border-box}body{color:#1b2733;background:#f4f6f8;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}button{cursor:pointer;font-family:inherit}.signin-page{justify-content:center;align-items:center;min-height:100vh;display:flex}.signin-card{text-align:center;background:#fff;border-radius:8px;max-width:360px;padding:32px;box-shadow:0 1px 4px #0000001f}.signin-card h1{margin:0 0 8px;font-size:20px}.signin-card button{color:#fff;background:#1b3a4b;border:none;border-radius:4px;margin-top:16px;padding:10px 20px;font-size:14px}.signin-card button:disabled{opacity:.6;cursor:default}.signin-error{color:#b3261e;margin-top:12px;font-size:13px}.loading-screen{color:#667;justify-content:center;align-items:center;min-height:100vh;display:flex}.app-shell{min-height:100vh;display:flex}.app-sidebar{color:#fff;background:#1b3a4b;flex-shrink:0;width:220px;padding:16px 0}.app-sidebar-header{padding:0 20px 16px;font-size:16px;font-weight:600}.app-sidebar nav ul{margin:0;padding:0;list-style:none}.app-sidebar nav a{color:#fffc;padding:10px 20px;font-size:14px;text-decoration:none;display:block}.app-sidebar nav a:hover{background:#ffffff14}.app-sidebar nav a.active{color:#fff;background:#ffffff26;font-weight:600}.app-main{flex-direction:column;flex:1;display:flex}.app-topbar{background:#fff;border-bottom:1px solid #e2e6ea;justify-content:flex-end;align-items:center;gap:16px;padding:12px 24px;font-size:13px;display:flex}.app-topbar button{background:#fff;border:1px solid #cdd4da;border-radius:4px;padding:6px 12px;font-size:13px}.app-content{padding:24px}.page h1{margin-top:0;font-size:22px}