Issues with GPIO Configuration and Button Functionality on STM32

RCC->AHBENR |= RCC_AHBENR_GPIOAEN; // Enable the bus for port IOPA.

GPIOA->MODER |= 0x400; // Set MODER5 (PA5) for LD2,
GPIOA->MODER |= 0x100000; // Set MODER10 (PA10) for LED

GPIOC->PUPDR |= 0x2000000; // Configure PC13 for B1
GPIOA->PUPDR |= 0x20; // Configure PA2 for B2

while (1)
{
    if(GPIOA->IDR |= 0x4){
        GPIOA->BSRR = 0x400;
        HAL_Delay(1000);
        GPIOA->BRR = 0x400;
        HAL_Delay(1000);
    }

    if(GPIOC->IDR &= 0x2000){
        GPIOA->BRR = 0x20;
    }
    else{
        GPIOA->BSRR = 0x20;
    }
}