.wrap{
  max-width: 1200px;
  margin: 0 auto;
  padding: 22px 16px 80px;
}

/* Two-column rail layout for timeline only */
.rail-layout{
  display:grid;
  grid-template-columns: 480px 1fr;
  gap: 16px;
  align-items:start;
}

/* Sticky left rail */
.rail{
  position: sticky;
  top: 16px;
  align-self:start;
  height: calc(100vh - 32px);
  overflow:auto;
  padding-right: 4px;
  display:flex;
  flex-direction:column;
  gap:12px;
}

/* Right stream */
.stream{
  min-width: 0;
  display:flex;
  flex-direction:column;
  gap: 14px;
}

.stream-head{
  padding: 6px 2px 0;
}
.stream-meta{
  display:flex; align-items:center; gap:10px;
}

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.pager{
  display:flex;
  gap:10px;
  margin-top: 8px;
}

/* Detail (single column) */
.single{ max-width: 980px; }
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-bottom: 16px;
}
.back{
  color: var(--muted);
  font-weight:700;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid var(--border);
  background: rgba(15,19,24,.55);
}
.back:hover{ border-color: rgba(78,161,255,.35); color: var(--text); }

.topnav{ display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.topnav a{
  color:var(--muted);
  font-weight:700;
  font-size:13px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid transparent;
}
.topnav a.active{
  color:var(--text);
  background:rgba(78,161,255,.12);
  border-color:rgba(78,161,255,.25);
}

.detail{ padding: 18px; }
.updates{ margin-top: 18px; }
.addon{ padding: 14px; margin-top: 10px; }

.list{ margin:10px 0 0; padding-left: 18px; color: var(--muted); }
.list li{ margin: 6px 0; }

.detail-footer {
  margin-top: 1rem;
}

/* Responsive: collapse rail under 900px */
@media (max-width: 900px){
  .rail-layout{ grid-template-columns: 1fr; }
  .rail{
    position: relative;
    height: auto;
    overflow: visible;
  }
}