body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    padding: 20px;
}

form {
    max-width: 300px;
    margin: auto;
    background: #ffffff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input, button {
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
}
.participant-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
input[type="file"] {
    direction: ltr;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    max-width: 100%;
}