.app-layout {
  min-height: 100vh;
  background: var(--color-bg);
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background: var(--color-topbar-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  z-index: 1000;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-inverse);
}

.topbar__logo {
  width: 120px;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  display: block;
}

.topbar__title {
  font-weight: 700;
  font-size: 18px;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.user-menu {
  position: relative;
}

.user-menu__trigger {
  min-width: 180px;
}

.user-menu__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  padding: 8px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: #fff;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 1010;
}

.user-menu__dropdown.is-hidden {
  display: none;
}

.user-menu__item {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
}

.user-menu__item:hover {
  background: var(--color-surface-alt);
}

.sidebar {
  position: fixed;
  top: var(--topbar-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-sidebar-bg);
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  padding: var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.main-content {
  margin-top: var(--topbar-height);
  margin-left: var(--sidebar-width);
  padding: var(--space-6);
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.page-title {
  margin-bottom: var(--space-2);
}

.page-subtitle {
  color: var(--color-text-muted);
}

.page-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.page-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 1100px) {
  .sidebar {
    display: none;
  }

  .main-content {
    margin-left: 0;
  }
}

@media (max-width: 700px) {
  .page-header {
    flex-direction: column;
  }

  .grid-two {
    grid-template-columns: 1fr;
  }

  .topbar__title {
    display: none;
  }
}