body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text-color);
    background-color: transparent;
}

.card-container {
    position: absolute; /* Changed to absolute for easier full-page transform */
    width: 100%; /* Will be expanded by JS effectively */
    height: 100%; /* Will be expanded by JS effectively */
    left: 0;
    top: 0;
}

.playing-card {
    position: absolute;
    width: 100px; /* Card width */
    height: 140px; /* Approximate card height (adjust if SVGs have different aspect ratio consistently) */
    /* Removed animation properties */
    opacity: 0.6; /* Adjusted opacity */
    background-color: #222; /* Fallback/placeholder color if SVG is slow */
    border-radius: 5px; /* Slightly rounded corners for cards */
    box-shadow: 0 0 5px rgba(0,0,0,0.5); /* Subtle shadow for depth */
}

/* Removed @keyframes moveCard */