body { background: #f8f9fa; }
.card { margin-bottom: 10px; }
#dropzone {
    border: 2px dashed #ccc;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s;
}
#dropzone:hover { border-color: #6c757d; }
.card-title { font-size: 0.9rem; word-break: break-word; }