body { 
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(to bottom, #ffffff, #0b0b35);
}

.calculator {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #1C1C1C;
    padding: 0px 5px 0px 5px;
    width: 400px;
    max-width: 400px;
    border-radius: 20px;
}

.calculator h1 {
    color: white;
    font-weight: 900;

    text-align: center;
    margin-bottom: 20px;
}

#display {
    background-color: #1C1C1C;
    color: white;
    text-align: right;
    font-size: 90px;
    border: none;
    outline: none;
    width: 100%;
    box-sizing: border-box;
}

#buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 8px;
}

#buttons button {
    background-color: #505050;
    color: white;
    font-size: 36px;
    text-align: center;
    width: 80px;
    height: 80px;
    border-radius: 40px;
    border: none;
}

#buttons button:hover {
    opacity: 70%;
}

#buttons button:active {
    opacity: 90%;
}
/* Стандарттык стили */
.zero-button {
    grid-column: span 2;
    width: 180px;
}
@media screen and (max-width: 400px) {
    .calculator {
        width: 100%;
        max-width: none;
    }

    #display {
        font-size: 60px;
    }

    #buttons button {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
}

@media screen and (max-width: 350px) {
    #display {
        font-size: 40px;
    }

    #buttons button {
        width: 50px;
        height: 50px;
        font-size: 18px;
    }

    .calculator {
        padding: 0px 3px 0px 3px;
    }
    .calculator h1 {
        font-size: 24px;
    }
}

@media screen and (max-width: 320px) {
    #display {
        font-size: 30px;
    }
    .zero-button {
        width: 100px; /* Өлчөмдү өзүңүзгө ылайыктап өзгөртүңүз */
    }
    #buttons button {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .calculator {
        padding: 0px 2px 0px 2px;
    }
}