.biu-container {
    max-width: 600px;
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.biu-name-field {
    margin: 12px 0;
}

.biu-name-field label {
    display: block;
    font-size: 14px;
    font-weight: bold;
    color: #334155;
    margin-bottom: 4px;
}

.biu-uploader-name {
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background: #fff;
    box-sizing: border-box;
}

@media (max-width: 768px) {
}

.biu-uploader-name:focus {
    outline: none;
    border-color: #c78665;
    box-shadow: 0 0 0 3px rgba(199, 134, 101, 0.1);
}

.biu-name-field .biu-required {
    color: #dc2626;
}

.biu-name-field input:invalid {
    border-color: #dc2626;
}

.biu-dropzone {
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #f8fafc;
}

.biu-dropzone:hover,
.biu-dropzone.dragover {
    border-color: #c78665;
    background: #fef6f4;
}

.biu-dropzone.has-files {
    border-color: #22c55e;
    background: #f0fdf4;
}

.biu-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    color: #64748b;
}

.biu-dropzone.dragover .biu-icon {
    color: #c78665;
}

.biu-dropzone-text {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: bold;
    color: #334155;
}

.biu-dropzone-hint {
    margin: 0;
    font-size: 13px;
    color: #94a3b8;
}

.biu-file-input {
    display: none;
}

.biu-progress-container {
    margin-top: 20px;
}

.biu-progress-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.biu-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #c78665, #a8664a);
    width: 0;
    transition: width 0.3s ease;
}

.biu-progress-text {
    margin: 10px 0;
    font-size: 14px;
    color: #64748b;
    text-align: center;
}

.biu-file-list {
    list-style: none;
    padding: 0;
    margin: 10px 0 0;
    max-height: 300px;
    overflow-y: auto;
}

.biu-file-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: #f1f5f9;
    border-radius: 6px;
    margin-bottom: 6px;
    font-size: 13px;
}

.biu-file-list li.success {
    color: #16a34a;
}

.biu-file-list li.error {
    color: #dc2626;
}

.biu-file-list li.pending {
    color: #64748b;
}

.biu-file-list li.completed {
    opacity: 0.7;
}

.biu-status-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.biu-upload-btn {
    display: block;
    width: 100%;
    margin-top: 16px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    background: #c78665;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.biu-upload-btn:hover {
    background: #b57554;
}

.biu-upload-btn:disabled {
    background: #e5c7b6;
    cursor: not-allowed;
}

.biu-message {
    display: none;
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}

.biu-message.active {
    display: block;
}

.biu-message.success {
    background: #dcfce7;
    color: #16a34a;
}

.biu-message.error {
    background: #fee2e2;
    color: #dc2626;
}

.biu-remove-btn {
    margin-left: auto;
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.biu-remove-btn:hover {
    color: #dc2626;
}

.biu-thumbnail {
    width: 32px;
    height: 32px;
    object-fit: cover;
    border-radius: 4px;
    display: block;
}

.biu-file-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: #f1f5f9;
    border-radius: 6px;
    margin-bottom: 6px;
    font-size: 13px;
    visibility: visible;
}