.form-card {
    background-color: #fff;
    border: 1px solid rgba(0, 0, 0, 0.125);
}

.file-upload-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

.file-upload-input {
    opacity: 0;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-display {
    min-height: 200px;
    border: 2px dashed #dee2e6;
    border-radius: 0.375rem;
    background-color: #f8f9fa;
    transition: all 0.2s ease;
}

.file-upload-display:hover {
    border-color: #0d6efd;
    background-color: #e7f1ff;
}

.file-upload-preview {
    text-align: center;
    color: #6c757d;
}

.file-upload-preview img {
    max-width: 100%;
    max-height: 180px;
    border-radius: 0.25rem;
}

.btn-group .btn {
    padding: 0.5rem 1rem;
}

.form-control-lg,
.form-select-lg {
    padding: 0.5rem 1rem;
    font-size: 1.1rem;
}

.input-group-text {
    background-color: #f8f9fa;
}

@media (max-width: 768px) {
    .btn-group {
        display: flex;
        flex-wrap: wrap;
    }

    .btn-group .btn {
        flex: 1 0 auto;
        margin-bottom: 0.5rem;
    }
}