body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111;
    color: white;
}

.bg-img {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 40px;
}

.card {
    width: 260px;
    background: rgba(0,0,0,0.6);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0,255,0,0.4);
}

.rank {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.price {
    font-size: 14px;
    margin-bottom: 12px;
}

button {
    background: rgb(0,200,120);
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: opacity 0.3s;
}

button:hover {
    opacity: 0.85;
}

.info {
    display: none;
    margin-top: 12px;
    font-size: 13px;
    color: #ddd;
    text-align: left;
}