body{background:linear-gradient(135deg,#4e54c8 0%,#8f94fb 100%);min-height:100vh;display:flex;align-items:center;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif}.login-card{background:#fff;border-radius:20px;box-shadow:0 15px 35px rgba(0,0,0,.1);overflow:hidden;max-width:400px;width:100%}.login-header{background:linear-gradient(135deg,#4e54c8 0%,#8f94fb 100%);color:#fff;padding:2rem;text-align:center}.login-body{padding:2rem}.form-control{border-radius:10px;border:2px solid #e9ecef;padding:12px 15px;transition:all .3s}.form-control:focus{border-color:#4e54c8;box-shadow:0 0 0 .2rem rgba(78,84,200,.25)}.btn-login{background:linear-gradient(135deg,#4e54c8 0%,#8f94fb 100%);border:none;border-radius:10px;padding:12px;font-weight:600;transition:transform .3s}.btn-login:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(78,84,200,.4)}.form-floating label{color:#6c757d}.alert{border-radius:10px}