.app-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 20px;
  background: #111827;
  color: #f9fafb;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  background: #f9fafb;
  color: #111827;
  font-weight: 800;
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
}

.brand-subtitle {
  color: #aeb7c6;
  font-size: 12px;
}

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

.side-nav-item {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: #cbd5e1;
}

.side-nav-item.is-active,
.side-nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.main-area {
  padding: 32px 36px 48px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.page-header h1 {
  margin-top: 4px;
  font-size: 28px;
  letter-spacing: 0;
}

.page-kicker,
.section-label {
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-section {
  margin-bottom: 32px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.section-heading h2 {
  margin-top: 2px;
  font-size: 20px;
  letter-spacing: 0;
}

.section-note {
  color: var(--text-muted);
  font-size: 13px;
}