#base64 textarea {
    display: block;
    width: 100%;
    min-height: 160px;
    padding: 10px 12px;
    resize: vertical;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font: inherit;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.875rem;
    line-height: 1.5;
}

#base64 textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

#base64 .base64-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

#base64 input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--accent);
}

#base64 .base64-help,
#base64 .base64-stats {
    color: var(--text-muted);
    font-size: 0.8rem;
}

#base64 .base64-help {
    margin: 0;
}

#base64-results {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#base64-output {
    cursor: copy;
}

#base64 .base64-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

#base64 .base64-actions button {
    padding: 7px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    font: inherit;
    font-size: 0.8rem;
}

#base64 .base64-actions button:hover {
    border-color: var(--accent);
}

#base64 button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

#base64 button:disabled {
    opacity: 0.5;
    cursor: default;
}

#base64-message.base64-error {
    color: #ff8b8b;
}