style.css

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f4f4f4;
    margin: 0;
}

.container {
    text-align: center;
}

.input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 10px;
}

.card-container {
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
}

.card {
    position: relative;
    width: 85.60mm;
    height: 53.98mm;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card-side {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
}

.front {
    background: linear-gradient(135deg, #7b4397, #dc2430);
    color: white;
}

.back {
    background: linear-gradient(135deg, #7b4397, #dc2430);
    color: white;
    transform: rotateY(180deg);
}

.card-detail {
    margin: 10px;
}

.magstripe {
    height: 20%;
    width: 100%;
    background: black;
    margin-top: 10px;
}

#cvv {
    margin-top: 10px;
    text-align: right;
    padding-right: 10px;
}

button {
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
}

button:hover {
    background-color: #2980b9;
}

input {
    padding: 10px;
    width: 200px;
    border: 1px solid #ccc;
    border-radius: 5px;
}