.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  background: #ffffff;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 100vh;
  padding: 22px;
  position: sticky;
  top: 0;
  width: 270px;
}

.brand {
  align-items: center;
  color: var(--color-text);
  display: flex;
  gap: 12px;
}

.brand-mark,
.avatar {
  align-items: center;
  background: var(--color-primary);
  border-radius: 50%;
  color: #ffffff;
  display: inline-flex;
  font-weight: 900;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.brand small,
.user-chip small {
  color: var(--color-muted);
  display: block;
  font-size: 0.76rem;
}

.sidebar-nav {
  display: grid;
  gap: 8px;
}

.sidebar .nav-link {
  align-items: center;
  appearance: none;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 0;
  color: var(--color-muted);
  display: flex;
  font-weight: 800;
  gap: 10px;
  justify-content: flex-start;
  padding: 11px 12px;
  text-align: left;
  width: 100%;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
  background: #f0f4f2;
  color: var(--color-primary-dark);
}

.nav-group {
  display: grid;
  gap: 8px;
}

.nav-parent {
  justify-content: space-between;
}

.nav-parent-left {
  align-items: center;
  display: inline-flex;
  gap: 10px;
}

.nav-chevron {
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}

.nav-parent[aria-expanded="true"] .nav-chevron {
  transform: rotate(180deg);
}

.nav-submenu {
  display: grid;
  gap: 6px;
  padding-left: 12px;
}

.nav-sublink {
  align-items: center;
  border-radius: calc(var(--radius-sm) - 2px);
  color: var(--color-muted);
  display: flex;
  font-size: 0.95rem;
  gap: 10px;
  padding: 9px 12px;
}

.nav-sublink:hover,
.nav-sublink.active {
  background: #f5f2ed;
  color: var(--color-primary-dark);
}

.sidebar-footer {
  align-items: center;
  color: var(--color-muted);
  display: flex;
  font-size: 0.85rem;
  gap: 8px;
  margin-top: auto;
}

.status-dot {
  background: var(--color-success);
  border-radius: 50%;
  height: 9px;
  width: 9px;
}

.app-main {
  flex: 1;
  min-width: 0;
}

.topbar {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 24px 32px 12px;
}

.topbar h1 {
  font-size: 1.7rem;
  font-weight: 800;
  margin: 0;
}

.eyebrow {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topbar-actions,
.user-chip {
  align-items: center;
  display: flex;
  gap: 12px;
}

.user-chip {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 12px 8px 8px;
}

.content-wrap {
  padding: 20px 32px 42px;
}

.metric-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.dashboard-grid,
.detail-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel-wide {
  grid-column: 1 / -1;
}

.empty-state {
  margin: 12vh auto;
  max-width: 620px;
  text-align: center;
}

.login-page {
  background: linear-gradient(135deg, #f7f7f5 0%, #edf3f1 100%);
}

.login-wrap {
  align-items: center;
  display: flex;
  min-height: 100vh;
  justify-content: center;
  padding: 24px;
}

.login-panel {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  max-width: 430px;
  padding: 30px;
  width: 100%;
}

.login-brand {
  align-items: center;
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}

.login-brand h1 {
  font-size: 1.25rem;
  margin: 0;
}

.login-brand p,
.login-help {
  color: var(--color-muted);
}

.login-help {
  display: block;
  font-weight: 800;
  margin-top: 16px;
  text-align: center;
}

@media (max-width: 1180px) {
  .metric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .app-shell,
  .topbar,
  .topbar-actions {
    display: block;
  }

  .sidebar {
    min-height: auto;
    position: static;
    width: 100%;
  }

  .sidebar-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar-actions {
    margin-top: 16px;
  }

  .content-wrap,
  .topbar {
    padding-left: 18px;
    padding-right: 18px;
  }

  .metric-grid,
  .dashboard-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }
}