styles.css

body {
    background-color: rgb(39, 38, 38);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-image: url(calci_background.jpg);
    background-size: cover;
    background-position: center;
}

.calculator {
    width: 90%;
    max-width: 350px;
    border: 2px solid #ccc; /* Border for the calculator */
    border-radius: 10px;
    box-shadow: 0px 15px 15px rgba(0, 0, 0, 0.2);
    background: white;
    overflow: hidden;
}

.calculator input[type=text] {
    height: 80px;
    font-size: 2rem;
    text-align: left; /* Align text to the right */
    border: none;
    border-bottom: 2px solid #ccc; /* Border for the input field */
    border-radius: 0; /* Remove border radius for flat top */
    padding: 0 15px;
    background-color: #000; /* Dark background for better contrast */
    color: #fff; /* White text for visibility */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 0; /* Remove bottom margin to fit nicely */
    box-sizing: border-box; /* Ensure padding is included in width */
}

.buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 7px;
    padding: 10px;
}

.buttons input[type=button] {
    width: 100%;
    height: 70px;
    font-size: 1.5rem;
    border: solid #ccc;
    border-radius: 8px;
    background: linear-gradient(200deg, #f9f9f9, #e0e0e0);
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2), inset 1px 1px 2px rgba(255, 255, 255, 0.7);
    transition: background-color 0.3s, transform 0.2s;
}

.buttons input[type=button]:hover {
    background: linear-gradient(145deg, #e0e0e0, #f9f9f9);
    transform: scale(1.05);
}

.buttons input[type=button]:active {
    animation: clickEffect 0.1s ease;
}

.buttons input[type=button].operator {
    background: linear-gradient(145deg, #f9a825, #f57f17);
    color: white;
    border: none;
}

.buttons input[type=button].operator:hover {
    background: linear-gradient(145deg, #f57f17, #f9a825);
}

@keyframes clickEffect {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.95);
    }
    100% {
        transform: scale(1);
    }
}