.tool-card {
    transition: transform 0.2s;
    height: 100%;
}

.tool-card:hover {
    transform: translateY(-5px);
}

.file-size {
    color: #666;
    font-size: 0.9em;
    margin-top: 0.5rem;
}

.result-area {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}