/**
 * Layout styles - App structure, main content area, header
 */

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.app {
  display: flex;
  min-height: 100vh;
}

.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.main-header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 30;
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-700);
  letter-spacing: -0.025em;
}

.page-title-icon {
  width: 24px;
  height: 24px;
  color: var(--primary-600);
}

.page-subtitle {
  color: var(--primary-600);
  font-size: 0.875rem;
  font-weight: 500;
  margin-top: 0.125rem;
}

.main-content {
  padding: 1.5rem 2rem 2rem;
}