.loading { display: grid; place-items: center; min-height: 100dvh; color: var(--sand-text-tertiary); font: var(--text-body2); }

.brand-mark { width: 28px; height: 28px; flex: none; }
.brand-mark .brand-face { fill: var(--sand-bg-primary); }
.brand-mark .brand-eye { fill: var(--sand-text-inverted); }

/* The column background continues the sidebar below the sticky panel on long pages. */
.shell { display: grid; grid-template-columns: 232px minmax(0, 1fr); min-height: 100dvh; background: linear-gradient(to right, var(--sand-bg-sidebar) 232px, var(--sand-bg-pane) 232px); }
.sidebar { position: sticky; top: 0; display: flex; flex-direction: column; height: 100dvh; min-height: 0; border-right: var(--hairline) solid var(--sand-border-tertiary-translucent); background: var(--sand-bg-sidebar); }
.sidebar-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 16px 12px 12px 18px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--sand-text-primary); font: var(--text-body1); font-weight: var(--weight-semibold); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand small { color: var(--sand-text-tertiary); font: var(--text-label); font-weight: var(--weight-regular); }
.nav-toggle { display: none; }
.nav { display: flex; flex: 1; flex-direction: column; gap: 1px; min-height: 0; padding: 4px 10px 12px; overflow-y: auto; }
.nav-group { margin: 10px 0 4px; padding: 0 8px; color: var(--sand-text-tertiary); font: var(--text-label); }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 32px;
  padding: 6px 8px;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--sand-text-secondary);
  font: var(--text-body2);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--duration-fast) ease-out, color var(--duration-fast) ease-out;
}
.nav-item svg { width: 16px; height: 16px; flex: none; color: var(--sand-icon-tertiary); }
.nav-item:hover { background: var(--sand-bg-hover); color: var(--sand-text-primary); }
.nav-item.active { background: var(--sand-bg-active); color: var(--sand-text-primary); font-weight: var(--weight-medium); }
.nav-item.active svg { color: var(--sand-icon-primary); }
.sidebar-foot { display: flex; align-items: center; gap: 4px; padding: 10px; border-top: var(--hairline) solid var(--sand-border-tertiary-translucent); }
.account { flex: 1; min-width: 0; min-height: 44px; }
.account .avatar { width: 28px; height: 28px; }
.account-copy { display: flex; flex-direction: column; min-width: 0; }
.account-copy strong { overflow: hidden; font: var(--text-body2); font-weight: var(--weight-medium); text-overflow: ellipsis; white-space: nowrap; }
.account-copy .status { display: block; overflow: hidden; font: var(--text-label); text-overflow: ellipsis; }
.account-copy .status::before { display: inline-block; margin-right: 6px; vertical-align: 1px; }
.avatar { display: grid; place-items: center; flex: none; overflow: hidden; border-radius: 50%; background: var(--sand-bg-secondary-hover); color: var(--sand-text-secondary); font: var(--text-body2); font-weight: var(--weight-semibold); }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

.main { min-width: 0; background: var(--sand-bg-pane); }
.page { display: flex; flex-direction: column; gap: 28px; width: 100%; max-width: 760px; margin: 0 auto; padding: 36px 32px 72px; }
.page[hidden] { display: none; }
.page.wide { max-width: 1120px; }
.page-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; min-height: 36px; margin-bottom: -4px; }
.page-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }

@media (max-width: 820px) {
  .shell { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; background: var(--sand-bg-pane); }
  .sidebar { z-index: 20; height: auto; border-right: 0; border-bottom: var(--hairline) solid var(--sand-border-tertiary-translucent); }
  .sidebar-head { padding: 10px 10px 10px 16px; }
  .nav-toggle { display: inline-grid; }
  .sidebar .nav, .sidebar .sidebar-foot { display: none; }
  .sidebar.open { position: fixed; inset: 0; height: 100dvh; }
  .sidebar.open .nav { display: flex; }
  .sidebar.open .sidebar-foot { display: flex; }
  .page { padding: 24px 16px 56px; }
  .page { gap: 24px; }
}