:root {
  --bb-bg: #1a120c;
  --bb-panel: #241910;
  --bb-text: #f3ebe3;
  --bb-muted: #a8907c;
  --bb-accent: #ff8a3d;
  --bb-accent-2: #ffc09a;
  --bb-line: #3d2b1c;
  --bb-callout: #3a220f;
  --sans: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --mono: "Source Code Pro", ui-monospace, monospace;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--sans); background: var(--bb-bg); color: var(--bb-text); line-height: 1.55; min-height: 100vh; }
.shell-bb-app { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem 2.5rem; }
.shell-bb-banner { padding: 1.4rem 0 1rem; border-bottom: 2px solid var(--bb-accent); }
.shell-bb-brand { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 700; color: var(--bb-muted); display: flex; gap: 0.45rem; align-items: center; }
.shell-bb-mark { color: var(--bb-accent); font-size: 1.1rem; letter-spacing: 0; }
.shell-bb-nav { display: flex; flex-wrap: wrap; gap: 0.85rem; margin: 0.75rem 0; }
.shell-bb-nav a { color: var(--bb-accent-2); text-decoration: none; font-size: 0.88rem; }
.shell-bb-deadline { display: inline-block; background: var(--bb-accent); color: #1a0e08; font-weight: 800; font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; padding: 0.25rem 0.55rem; border-radius: 4px; margin-bottom: 0.5rem; }
.shell-bb-banner h1 { margin: 0.25rem 0; font-size: clamp(1.35rem, 3vw, 1.85rem); }
.shell-bb-intro { margin: 0; color: var(--bb-muted); }
.shell-bb-force { display: grid; grid-template-columns: 1fr 1.15fr 1fr; gap: 0.75rem; margin: 1.2rem 0; }
@media (max-width: 900px) { .shell-bb-force { grid-template-columns: 1fr; } }
.shell-bb-panel { background: var(--bb-panel); border: 1px solid var(--bb-line); border-radius: 8px; padding: 0.95rem; }
.shell-bb-windows { background: var(--bb-callout); border-color: var(--bb-accent); box-shadow: inset 3px 0 0 var(--bb-accent); }
.shell-bb-panel h2 { margin: 0 0 0.55rem; font-size: 0.92rem; color: var(--bb-accent-2); }
.shell-bb-panel label { display: flex; gap: 0.45rem; margin: 0.35rem 0; font-size: 0.86rem; cursor: pointer; }
.shell-bb-pack { background: #120d09; border: 1px solid var(--bb-line); border-radius: 8px; padding: 1rem; }
.shell-bb-out { margin: 0 0 0.75rem; min-height: 130px; white-space: pre-wrap; font-family: var(--mono); font-size: 0.78rem; background: #0c0907; border-radius: 6px; padding: 0.75rem; border: 1px solid var(--bb-line); }
.shell-bb-go, .shell-bb-copy { border: 0; border-radius: 6px; padding: 0.5rem 0.95rem; font: inherit; font-weight: 700; cursor: pointer; margin-right: 0.45rem; }
.shell-bb-go { background: var(--bb-accent); color: #1a0e08; }
.shell-bb-copy { background: transparent; color: var(--bb-text); border: 1px solid var(--bb-line); }

.matrix-prose{color:var(--bb-muted);font-size:.92rem}
.matrix-prose h2{color:var(--bb-text);font-size:1.05rem}
.matrix-prose a{color:var(--bb-accent-2)}
.matrix-prose code{font-family:var(--mono);font-size:.85em}