.ib-mode-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border-radius: var(--ut-radius-md);
    overflow: hidden;
    border: 1px solid var(--ut-color-border);
}

.ib-mode-tab {
    flex: 1;
    padding: 12px 20px;
    border: none;
    background: var(--ut-color-surface-muted);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--ut-transition-fast);
    color: var(--ut-color-text-muted);
}

.ib-mode-tab:hover {
    background: var(--ut-color-border);
}

.ib-mode-tab.active {
    background: var(--ut-gradient-primary);
    color: #fff;
}

.ib-drop-area {
    border: 2px dashed var(--ut-color-border);
    border-radius: var(--ut-radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--ut-transition-base), background var(--ut-transition-base);
}

.ib-drop-area:hover,
.ib-drop-area.active {
    border-color: var(--ut-color-primary-500);
    background: rgba(102, 126, 234, 0.04);
}

.ib-drop-area i {
    font-size: 3rem;
    color: var(--ut-color-primary-500);
    margin-bottom: 12px;
    display: block;
}

.ib-drop-area h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.ib-encode-preview {
    margin-top: 20px;
}

.ib-preview-img-wrap {
    text-align: center;
}

.ib-preview-img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--ut-radius-md);
    border: 1px solid var(--ut-color-border);
    object-fit: contain;
}

.ib-preview-info {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--ut-color-text-muted);
}

.ib-encode-options {
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--ut-color-surface-muted);
    border-radius: var(--ut-radius-md);
}

.ib-result {
    margin-top: 20px;
}

.ib-textarea {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    min-height: 150px;
    resize: vertical;
}

.ib-result-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

.ib-result-size {
    font-size: 0.85rem;
    color: var(--ut-color-text-muted);
}

.ib-decode-input {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ib-decode-actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.ib-decode-result {
    margin-top: 20px;
    text-align: center;
}

.ib-decode-result h5 {
    margin-bottom: 16px;
}

.ib-decode-download {
    margin-top: 16px;
}