/* Global Settings */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Styling the container div */
.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: sans-serif;
    margin: 5rem;
    row-gap: 3rem;
}

/* Styling the header section */
header {
    margin-top: -2.5rem;
    background-color: rgb(221, 219, 219);
    width: 50%;
    padding: 2rem;
    border-radius: 0.3rem;
    box-shadow: 0px 5px 10px black;
    text-align: center;
}

header h1 {
    font-size: large;
}

/* Styling the calculatorSection section */
.calculatorSection {
    width: 23%;
    background-color: black;
    color: white;
    border-radius: 0.2rem;
    box-shadow: 0px 5px 15px black;
    text-align: center;
    height: 60vh;
}

/* calculatorSection title styling */
.calculatorSection h2 {
    padding: 0.5rem;
}

/* Styling the theCalculator section */
.theCalculator {
    background-color: rgb(14, 12, 12);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

/* Styling the screen container */
.screen {
    width: 100%;
    height: 5rem;
    background-color: rgb(233, 227, 227);
    border-radius: 0.1rem;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-bottom: 1rem;
}

/* Styling the the screen input data */
.screenText {
    color: black;
    margin-right: 0.5rem;
    font-size: x-large;
    font-weight: bolder;
}

/* Styling the keys of the calculator */
.key {
    width: 25%;
    padding: 0.5rem;
    margin: 5px;
    background-color: black;
    border-radius: 3rem;
}

/* Hover effect on the keys */
.key:hover {
    font-weight: bolder;
    cursor: pointer;
}

/* Styling the operators keys */
.op {
    background-color: red;
}

/* Responsive Design Fixes for Devices with a maximum width of 1200px */
@media screen and (max-width: 1200px) {
    .calculatorSection {
        width: 30%;
        height: 30vh;
    }
}

/* Responsive Design Fixes for Devices with a maximum width of 1024px */
@media screen and (max-width: 1024px) {
    header {
        width: 70%;
    }
    .calculatorSection {
        width: 50%;
        height: 30vh;
    }
}

/* Responsive Design Fixes for Devices with a maximum width of 768px */
@media screen and (max-width: 768px) {
    header {
        width: 70%;
    }
    
    header h1 {
        font-size: small;
    }
    .calculatorSection {
        width: 50%;
    }
    .key {
        width: 22%;
        padding: 0.8rem;
    }
    .screen {
        height: 4rem;
    }
}

/* Responsive Design Fixes for Devices with a maximum width of 480px */
@media screen and (max-width: 480px) {
    .container {
        margin: 2rem;
        row-gap: 1.5rem;
    }
    header {
        width: 100%;
        padding: 1rem;
        margin-top: 1rem;
    }
    
    header h1 {
        font-size: small;
    }
    .calculatorSection {
        width: 100%;
        height: auto;
    }
    .key {
        width: 25%;
        text-align: center;
        padding: 1rem;
    }
    .screen {
        height: 3.5rem;
    }
}