.sfu-1447-wrapper {
    background: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    max-width: 600px;
    margin: 0 auto;
    font-family: inherit;
    border: 1px solid #eaeaea;
}
.sfu-1447-title {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
    font-size: 22px;
    text-align: center;
}
.sfu-1447-desc {
    text-align: center;
    color: #666;
    margin-bottom: 25px;
    font-size: 14px;
}
.sfu-1447-field {
    margin-bottom: 15px;
}
.sfu-1447-field label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #444;
}
.sfu-1447-field input[type="text"],
.sfu-1447-field input[type="email"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
    box-sizing: border-box;
}
.sfu-1447-field input:focus {
    border-color: #0073aa;
    outline: none;
}
.sfu-1447-dropzone {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    position: relative;
    background: #fafafa;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-bottom: 15px;
}
.sfu-1447-dropzone:hover, .sfu-1447-dropzone.dragover {
    border-color: #0073aa;
    background: #f0f8ff;
}
.sfu-1447-dropzone input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}
.sfu-1447-dz-content svg {
    color: #888;
    margin-bottom: 15px;
}
.sfu-1447-dropzone:hover .sfu-1447-dz-content svg, .sfu-1447-dropzone.dragover .sfu-1447-dz-content svg {
    color: #0073aa;
}
.sfu-1447-dz-content p {
    margin: 0;
    color: #666;
    font-size: 15px;
}
.sfu-1447-dz-content span {
    color: #0073aa;
    font-weight: 500;
    text-decoration: underline;
}
.sfu-1447-filename {
    text-align: center;
    font-weight: 500;
    color: #3c763d;
    margin-bottom: 20px;
    word-break: break-all;
}
.sfu-1447-submit {
    background-color: #0073aa;
    color: #fff;
    border: none;
    padding: 14px 25px;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    font-weight: 600;
    width: 100%;
    transition: opacity 0.3s;
}
.sfu-1447-submit:hover {
    opacity: 0.9;
}
.sfu-1447-submit:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}
.sfu-1447-msg {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
}
.sfu-1447-msg.success {
    background-color: #dff0d8;
    color: #3c763d;
    border: 1px solid #d6e9c6;
}
.sfu-1447-msg.error {
    background-color: #f2dede;
    color: #a94442;
    border: 1px solid #ebccd1;
}
.sfu-1447-loading {
    opacity: 0.6;
    pointer-events: none;
}