body { background-color: #f8f9fa; height: 100vh; display: flex; align-items: center; }
        .login-card { border: none; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
        .btn-orange { background-color: #ff6b00; color: white; border: none; }
        .btn-orange:hover { background-color: #e65c00; color: white; }