:root {
  --bg: #f1f5f9;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #4338ca;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { color: var(--ink); background: var(--bg); }

/* --- back link ----------------------------------------------------------- */
.back {
  position: absolute; top: 12px; right: 16px; z-index: 10;
  font-size: 13px; font-weight: 600; color: var(--ink); text-decoration: none;
  background: rgba(255, 255, 255, 0.8); padding: 5px 10px; border-radius: 999px;
  border: 1px solid var(--line);
}
.back:hover { background: #fff; }

.wrap { max-width: 1000px; margin: 0 auto; padding: 30px 22px 56px; }

/* --- header -------------------------------------------------------------- */
.head { margin-bottom: 22px; }
.head h1 { margin: 0 0 8px; font-size: 30px; }
.lede { font-size: 15px; line-height: 1.6; color: #334155; max-width: 760px; margin: 0; }
.lede strong { color: var(--ink); }
.lede em { font-style: normal; font-weight: 700; color: var(--accent); }

/* --- role chips: the picker --------------------------------------------- */
.roles {
  display: grid; gap: 10px; margin-bottom: 22px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.role {
  --role-c: #64748b;
  display: flex; align-items: center; gap: 11px; text-align: left;
  cursor: pointer; font: inherit; color: var(--ink);
  background: #fff; border: 1.6px solid var(--line); border-radius: 12px;
  padding: 11px 13px; transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.role:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(15, 23, 42, 0.1); }
.role.active {
  border-color: var(--role-c);
  box-shadow: 0 0 0 2px var(--role-c), 0 8px 18px rgba(15, 23, 42, 0.12);
  background: color-mix(in srgb, var(--role-c) 7%, #fff);
}
.role-icon {
  flex: none; width: 36px; height: 36px; display: grid; place-items: center;
  font-size: 19px; border-radius: 10px;
  background: color-mix(in srgb, var(--role-c) 14%, #fff);
  border: 1px solid color-mix(in srgb, var(--role-c) 30%, #fff);
}
.role-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.role-name { font-size: 14px; font-weight: 800; color: var(--role-c); }
.role-short { font-size: 11.5px; color: var(--muted); line-height: 1.35; }

/* --- the stack: pick a role and the chips it holds light up --------------- */
/* The chips ARE the stack. Once a role is picked, the basic-role chips for the
   layers it holds light in the picked role's colour (--sel-c); the rest dim,
   so a composite role reads as a shape over the same set of chips. */
.role.held {
  border-color: var(--sel-c);
  box-shadow: 0 0 0 2px var(--sel-c), 0 8px 18px rgba(15, 23, 42, 0.12);
  background: color-mix(in srgb, var(--sel-c) 7%, #fff);
  transform: translateY(-2px);
}
.roles.picked .role.dim { opacity: 0.42; transform: none; }

/* --- detail panel -------------------------------------------------------- */
.detail {
  --role-c: #64748b;
  margin-top: 22px; background: #fff; border: 1px solid var(--line);
  border-left: 5px solid var(--role-c); border-radius: 14px; padding: 18px 20px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}
.detail-empty { border-left-color: var(--line); color: var(--muted); }
.detail-empty p { margin: 0; font-size: 14px; }
.detail-head { display: flex; align-items: center; gap: 9px; }
.detail-icon { font-size: 20px; }
.detail-head h2 { margin: 0; font-size: 19px; color: var(--role-c); }
.detail-owns {
  margin-left: auto; font-size: 11px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--role-c);
  background: color-mix(in srgb, var(--role-c) 10%, #fff);
  border: 1px solid color-mix(in srgb, var(--role-c) 25%, #fff);
  border-radius: 999px; padding: 3px 10px;
}
.detail-text { font-size: 14.5px; line-height: 1.6; color: #334155; max-width: 720px; margin: 12px 0 0; }