:root{color:#172033;background:linear-gradient(180deg,#eef4ff,#f8fbff);font-family:Segoe UI,PingFang SC,sans-serif}body{margin:0;min-height:100vh}#root,.app-shell{min-height:100vh}.brand{padding:20px;font-weight:700;letter-spacing:.04em}.app-header{background:#ffffffe6;border-bottom:1px solid #e6eef8;display:flex;align-items:center;justify-content:space-between}.app-content{padding:24px}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top left,rgba(60,124,255,.2),transparent 35%),radial-gradient(circle at bottom right,rgba(24,144,255,.18),transparent 30%),#f7fbff}.login-card{width:min(420px,calc(100vw - 32px))}