/* Databridle: explicit contracts, protected checks, connected evidence. */
.control-demo { border: 1px solid var(--border-strong); border-radius: var(--radius-panel); overflow: hidden; background: var(--bg-main); }
.demo-topline { padding: 20px 28px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; border-bottom: 1px solid var(--border-color); }
.demo-topline strong { font-size: 1rem; font-weight: 600; }
.demo-topline strong span { color: var(--text-subtle); font-weight: 400; }
.demo-assignment { padding: 30px 28px; display: flex; justify-content: space-between; align-items: center; gap: 28px; background: var(--bg-elevated); }
.demo-assignment h3 { margin: 10px 0; }
.demo-assignment p { font-size: .875rem; color: var(--text-muted); }
.demo-layout { display: grid; grid-template-columns: minmax(240px, .7fr) 2fr; border-top: 1px solid var(--border-color); }
.demo-choices { padding: 24px; display: flex; flex-direction: column; gap: 12px; border-right: 1px solid var(--border-strong); }
.demo-choices button { color: var(--text-muted); background: transparent; border: 1px solid var(--border-color); border-radius: var(--radius-control); padding: 20px; display: grid; grid-template-columns: 1fr auto; text-align: left; cursor: pointer; gap: 8px; }
.demo-choices .chapter-number { grid-column: 1 / -1; }
.demo-choices strong { font-weight: 500; color: var(--text-primary); }
.demo-choices button[aria-pressed="true"] { border-color: var(--brand-primary); box-shadow: inset 3px 0 var(--brand-primary); background: var(--bg-elevated); }
.demo-choices button:hover { border-color: var(--brand-primary); }
.demo-results { min-width: 0; }
.demo-result { padding: 30px; }
.demo-result + .demo-result { border-top: 1px solid var(--border-color); }
.demo-result[hidden], .demo-choices[hidden] { display: none; }
.demo-layout:has(.demo-choices[hidden]) { grid-template-columns: 1fr; }
.demo-request h3 { margin: 12px 0; font-family: var(--typography-mono); letter-spacing: -.025em; }
.demo-request code { color: var(--text-muted); font-size: .8125rem; overflow-wrap: anywhere; }
.demo-decision { margin: 28px 0; padding: 24px; background: var(--bg-elevated); border: 1px solid var(--border-strong); border-left: 3px solid var(--brand-primary); }
.decision-heading { display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.demo-decision p { margin: 20px 0 14px; color: var(--text-primary); }
.demo-policy { color: var(--text-muted); font-size: .875rem; }
.demo-outcome { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.demo-outcome p { margin-top: 12px; font-size: .9375rem; color: var(--text-muted); }
.demo-note { padding: 20px 28px; border-top: 1px solid var(--border-color); color: var(--text-subtle); font-size: .8125rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 780px) {
 .demo-layout { grid-template-columns: 1fr; }
 .demo-choices { border-right: 0; border-bottom: 1px solid var(--border-strong); padding: 18px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
 .demo-choices button { padding: 12px; grid-template-columns: 1fr; font-size: .875rem; }
 .demo-choices button > span[aria-hidden] { display: none; }
 .demo-assignment, .demo-topline, .demo-result { padding: 24px 20px; }
 .demo-decision { padding: 18px; }
 .demo-outcome { grid-template-columns: 1fr; gap: 24px; }
 .decision-heading { flex-wrap: wrap; }
 .demo-assignment > img { display: none; }
}