CSS Flip Card | Interactive UI Element

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" href="style.css">
    <script src="script.js" defer></script>
</head>
<body>
    <div class="web-flip-card" id="card">
        <div class="web-flip-card-box" 
             role="button" 
             tabindex="0" 
             aria-label="Flip card. Click to flip">
            <div class="web-flip-card-side web-flip-card-front">
                <img src="/icons/smiley-1.svg" alt="Front">
            </div>
            <div class="web-flip-card-side web-flip-card-back">
                <img src="/icons/smiley-2.svg" alt="Back">
            </div>
        </div>
    </div>
</body>
</html>

.web-flip-card {
    background-color: transparent;
    width: 600px;
    height: 500px;
    perspective: 1000px;
    overflow: hidden;
}

.web-flip-card-box {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    cursor: pointer;
}

.web-flip-card.active .web-flip-card-box {
    transform: rotateY(180deg);
}

.web-flip-card-side {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.3s ease;
}

.web-flip-card-side:hover {
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

/* Front side */
.web-flip-card-front {
    background-color: white;
    z-index: 2;
    transform: rotateY(0);
}

/* Back side */
.web-flip-card-back {
    background-color: #f8f9fa;
    transform: rotateY(180deg);
}

.web-flip-card-side img {
    width: 90%;
    height: 90%;
    object-fit: contain;
    border-radius: 10px;
}

/* Flip button for mobile devices */
.web-flip-button {
    display: none;
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    z-index: 3;
}

.web-flip-button:hover {
    background-color: #0056b3;
}

/* ARIA accessibility labels */
.web-flip-card-box[role="button"] {
    outline: none;
}

.web-flip-card-box[role="button"]:focus {
    box-shadow: 0 0 0 3px rgba(0,123,255,0.5);
}

/* 1. DESKTOP HOVER FLIPPING (with mouse pointer) */
@media (hover: hover) and (min-width: 769px) {
    .web-flip-card:hover .web-flip-card-box {
        transform: rotateY(180deg);
    }
}

/* 2. JAVASCRIPT FLIPPING (for mobiles and tablets) */
.web-flip-card.active .web-flip-card-box {
    transform: rotateY(180deg) !important;
}

/* Prevent flip on hover for smaller screens or non-hover devices */
@media (max-width: 768px), (hover: none) {
    .web-flip-card:hover .web-flip-card-box {
        transform: none;
    }
}

/* Responsive container adjustments */
@media screen and (max-width: 680px) {
    .web-flip-card {
        width: 90%;
        height: 400px;
        margin: 20px auto;
    }
}

document.addEventListener("DOMContentLoaded", function() {
    const card = document.getElementById("card");
    const cardBox = card.querySelector(".web-flip-card-box");
    let isFlipped = false;

    function flipCard() {
        isFlipped = !isFlipped;
        card.classList.toggle("active");
        cardBox.setAttribute("aria-pressed", isFlipped);
    }

    // Single event listener for the entire card
    cardBox.addEventListener("click", function() {
        // Toggle only on smaller screens or devices without hover support
        if (window.innerWidth <= 768 || !window.matchMedia("(hover: hover)").matches) {
            flipCard();
        }
    });

    // Keyboard accessibility (Enter/Space)
    cardBox.addEventListener("keydown", function(e) {
        if (e.key === "Enter" || e.key === " ") {
            e.preventDefault();
            flipCard();
        }
    });
});