.gth-base64-encoder .gth-btn-group { display: flex; gap: var(--gth-space-2); flex-wrap: wrap; margin-bottom: var(--gth-space-4); }
.gth-base64-encoder .gth-result-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--gth-space-2); }
.gth-base64-encoder .gth-output-textarea { background: var(--gth-bg-secondary); font-family: monospace; }