*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f7fb;color:#172033}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(420px,100%);background:#fff;padding:28px;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.08)}h1{margin:0 0 8px}.muted{margin-top:0;color:#667085}.auth-card label{display:block;margin:16px 0 6px;font-weight:600}.auth-card input{width:100%;padding:12px;border:1px solid #cfd5df;border-radius:10px;font-size:16px}.auth-card button,.page-shell button{width:100%;margin-top:18px;padding:12px;border:0;border-radius:10px;background:#172033;color:#fff;font-size:16px;cursor:pointer}.alert{padding:10px 12px;border-radius:10px;margin:14px 0}.alert.error{background:#fff0f0;color:#9d1c1c}.small-link{display:block;margin-top:18px;text-align:center}.page-shell{max-width:900px;margin:40px auto;background:#fff;padding:28px;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.06)}