.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  z-index: var(--z-sidebar);
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden auto;
  padding: 1.5rem .9375rem 1rem;
  color: #dce8e1;
  background:
    radial-gradient(circle at 10% 0%, rgba(104, 164, 131, .22), transparent 16rem),
    linear-gradient(180deg, var(--forest-900), var(--forest-950));
}

.brand {
  display: flex;
  align-items: center;
  gap: .6875rem;
  min-height: 3.25rem;
  padding: 0 .5rem 1.25rem;
  border-bottom: 1px solid rgba(231, 240, 234, .11);
}

.brand-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: .6875rem;
  color: var(--forest-950);
  background: #e5c98f;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 800;
}

.brand strong {
  display: block;
  color: #fffaf0;
  font-family: var(--font-serif);
  font-size: .9375rem;
  letter-spacing: .02em;
}

.brand small {
  display: block;
  margin-top: .125rem;
  color: #9fb5aa;
  font-size: .625rem;
}

.navigation {
  display: grid;
  gap: 1rem;
  margin-top: 1.125rem;
}

.nav-group[hidden] {
  display: none;
}

.nav-group-title {
  margin: 0 0 .375rem;
  padding: 0 .75rem;
  color: #89a096;
  font-size: .5625rem;
  font-weight: 800;
  letter-spacing: .15em;
}

.nav-list {
  display: grid;
  gap: .1875rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: .625rem;
  width: 100%;
  min-height: 2.375rem;
  padding: .5625rem .75rem;
  border: 0;
  border-radius: .5625rem;
  color: #bfd0c8;
  background: transparent;
  font-size: .75rem;
  text-align: left;
  text-decoration: none;
  transition: color 160ms ease, background-color 160ms ease;
}

.nav-link:hover {
  color: #fff7e6;
  background: rgba(255, 255, 255, .07);
}

.nav-link[aria-current="page"] {
  color: #fff7e6;
  background: linear-gradient(90deg, rgba(235, 209, 152, .21), rgba(235, 209, 152, .07));
  box-shadow: inset .125rem 0 0 #e5c98f;
}

.nav-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 1.125rem;
  height: 1.125rem;
  border: 1px solid currentColor;
  border-radius: .3125rem;
  font-size: .5625rem;
  opacity: .9;
}

.sidebar-status {
  margin-top: auto;
  padding: .875rem .75rem .25rem;
  border-top: 1px solid rgba(231, 240, 234, .11);
  color: #9fb5aa;
  font-size: .625rem;
  line-height: 1.7;
}

.sidebar-status strong {
  display: flex;
  align-items: center;
  gap: .375rem;
  color: #d6e5dd;
  font-weight: 650;
}

.status-light {
  width: .4375rem;
  height: .4375rem;
  border-radius: 50%;
  background: #6fb38b;
  box-shadow: 0 0 0 .25rem rgba(111, 179, 139, .1);
}

.workspace {
  min-width: 0;
  padding: 1.375rem 1.5rem 2.5rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 2.75rem;
  margin-bottom: .9375rem;
}

.page-heading {
  min-width: 0;
}

.page-heading h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-meta {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.data-freshness {
  color: var(--muted);
  font-size: .6875rem;
  white-space: nowrap;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .3125rem .375rem .3125rem .625rem;
  border: 1px solid var(--line);
  border-radius: .75rem;
  background: rgba(255, 253, 247, .8);
}

.user-copy {
  text-align: right;
}

.user-copy strong,
.user-copy small {
  display: block;
}

.user-copy strong {
  font-size: .6875rem;
}

.user-copy small {
  color: var(--muted);
  font-size: .5625rem;
}

.avatar {
  display: grid;
  place-items: center;
  width: 1.875rem;
  height: 1.875rem;
  border-radius: .625rem;
  color: var(--white);
  background: var(--forest-700);
  font-family: var(--font-serif);
  font-size: .75rem;
  font-weight: 700;
}

.page-content {
  min-width: 0;
}

.mobile-menu-button {
  display: none;
}

@media (max-width: 64rem) {
  :root { --sidebar-width: 4.75rem; }
  .brand { justify-content: center; padding-inline: 0; }
  .brand-copy,
  .nav-group-title,
  .nav-link-label,
  .sidebar-status { display: none; }
  .nav-link { justify-content: center; padding-inline: .5rem; }
  .nav-mark { width: 1.375rem; height: 1.375rem; }
}

@media (max-width: 47.9375rem) {
  .app-shell { display: block; }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(17rem, calc(100vw - 3rem));
    transform: translateX(-105%);
    transition: transform 180ms ease;
    box-shadow: var(--shadow-raised);
  }
  .app-shell.menu-open .sidebar { transform: translateX(0); }
  .brand { justify-content: flex-start; padding-inline: .5rem; }
  .brand-copy,
  .nav-group-title,
  .nav-link-label,
  .sidebar-status { display: block; }
  .nav-link { justify-content: flex-start; padding-inline: .75rem; }
  .workspace { padding: 1rem .9375rem calc(1.75rem + env(safe-area-inset-bottom)); }
  .mobile-menu-button { display: inline-grid; }
  .data-freshness { display: none; }
  .user-copy { display: none; }
}