/* Live component demos (block-demo): a framed sample of the real shipped
   artifact with a theme toggle and a code flip. */
.block-demo {
    margin: 20px 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--surface);
}
.demo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-raised, var(--surface));
}
.demo-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.demo-controls { display: flex; gap: 6px; }
.demo-toggle {
    padding: 4px 10px;
    font: inherit;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
}
.demo-toggle[aria-pressed="true"],
.demo-toggle[aria-expanded="true"] {
    color: var(--text);
    border-color: var(--text-muted);
}
.demo-frame {
    display: block;
    width: 100%;
    border: 0;
    background: #fff;
}
.demo-frame.demo-frame--dark { background: hsl(0 0% 3.9%); }
.demo-code { border-top: 1px solid var(--border); }
.demo-code[hidden] { display: none; }
.demo-code .code-content { margin: 0; }