.panel-left,.input-card,textarea{background:var(--bg3);border:1px solid var(--border);color:#fff;padding:12px;border-radius:var(--r);outline:none;font-size:14px;font-family:JetBrains Mono,monospace;resize:vertical;width:100%;transition:border-color .2s;line-height:1.6}textarea:focus{border-color:var(--accent)}.output-card textarea{min-height:120px}.actions-row{display:flex;gap:8px;flex-wrap:wrap}.mermaid-preview{background:var(--bg3);border:1px solid var(--border);border-radius:var(--r);padding:20px;min-height:200px;overflow-x:auto;display:flex;align-items:center;justify-content:center}.mermaid-preview svg{max-width:100%;height:auto}.schema-viz-muted{color:var(--muted);font-size:13px}.schema-viz-error{color:var(--error);font-size:13px}