styles.css

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f0f0;
    font-family: 'Arial', sans-serif;
    margin: 0;
}

.logo {
    max-width: 190px;
    margin-bottom: -40px;
    margin-top: -50px;
}

.calculator {
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #e0e0e0, #ffffff);
    padding: 20px;
    text-align: center;
    width: 90%;
    max-width: 400px;
    background-image: url('Harsh Chaudhari-anime.jpg');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

#display {
    width: 100%;
    height: 50px;
    font-size: 24px;
    text-align: right;
    border: none;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 20px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: box-shadow 0.3s ease;
}

#display:focus {
    outline: none;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
}

.button {
    width: 20%;
    height: 60px;
    margin: 5px 2.5%;
    font-size: 18px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.button:active {
    transform: scale(0.95);
}

.button.number {
    background-color: #dcdcdc;
}

.button.operator {
    background-color: #ffab00;
    color: white;
}

.button.equals {
    background-color: #00bfa5;
    color: white;
    width: 45%;
}

.button.clear {
    background-color: #e57373;
    color: white;
}

.button:hover {
    filter: brightness(90%);
}

.button-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

@media (max-width: 400px) {
    .button {
        width: 22%;
        height: 50px;
        margin: 4px 2%;
        font-size: 16px;
    }

    .button.equals {
        width: 48%;
    }

    #display {
        height: 45px;
        font-size: 22px;
        padding: 8px;
    }
}