body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f0f4f8;
    justify-content: center;
    align-items: center;
}
.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 20px;margin-bottom: 125px;
}
.card-wrapper {
    perspective: 1000px;
    width: 300px;
    height: 400px;
}
.card {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.6s;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    
}
.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    border-radius: 10px;
    color: #fff;
    text-align: center;
}
.card-front {
    z-index: 2;
    transform: rotateY(0deg);
}
.card-back {
    transform: rotateY(180deg);
}
.card-wrapper:hover .card {
    transform: rotateY(180deg);
}
.card i {
    font-size: 50px;
    margin-bottom: 20px;
}
.card h2 {
    font-size: 24px;
    margin: 10px 0;
}
.card p {
    font-size: 16px;
    opacity: 0.9;
}
.card a {
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    border: 2px solid #fff;
    padding: 8px 16px;
    border-radius: 5px;
    margin-top: 10px;
}
.card a:hover {
    background: #fff;
    color: #333;
}
.cosmetic-card .card-front, .cosmetic-card .card-back {
    background: linear-gradient(135deg, #351C15, #FFB107);
}
.transportation-card .card-front, .transportation-card .card-back {
    background: linear-gradient(135deg, #00B7EB, #005B9A);
}
.mobile-card .card-front, .mobile-card .card-back {
    background: linear-gradient(135deg, #0077B6, #00A896);
}
.inspection-card .card-front, .inspection-card .card-back {
    background: linear-gradient(135deg, #6B7280, #A78BFA); /* گرادیانت سبز روشن به سبز پررنگ با زاویه 130 درجه */
}
h3 {
    font-size: 20px;
    margin-bottom: 10px;
}
@media (max-width: 600px) {
    .card-wrapper {
        width: 100%;
        max-width: 280px;
    }
}