.admin-shell {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: var(--adm-sidebar-width) 1fr;
  grid-template-rows: 1fr;
}

.admin-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100dvh;
}

.admin-content {
  flex: 1;
  width: 100%;
  max-width: var(--adm-max-width);
  margin-inline: auto;
  padding: var(--adm-space-8) var(--adm-space-8) var(--adm-space-12);
}

.admin-content--wide {
  max-width: none;
  padding-inline: var(--adm-space-8);
}

.admin-page-header {
  margin-bottom: var(--adm-space-8);
}

.admin-page-header__title {
  font-size: var(--adm-text-2xl);
  font-weight: var(--adm-weight-semibold);
  letter-spacing: var(--adm-tracking-tight);
}

.admin-page-header__desc {
  margin-top: var(--adm-space-2);
  color: var(--adm-muted);
  font-size: var(--adm-text-base);
  max-width: 52ch;
}

.admin-grid {
  display: grid;
  gap: var(--adm-space-6);
}

.admin-grid--2 {
  grid-template-columns: 1fr;
}

.admin-grid--3 {
  grid-template-columns: 1fr;
}

.admin-grid--4 {
  grid-template-columns: 1fr;
}

.admin-stack {
  display: flex;
  flex-direction: column;
  gap: var(--adm-space-6);
}

.admin-stack--sm {
  gap: var(--adm-space-4);
}

.admin-stack--lg {
  gap: var(--adm-space-8);
}

.admin-section {
  display: flex;
  flex-direction: column;
  gap: var(--adm-space-5);
}

.admin-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--adm-space-4);
  flex-wrap: wrap;
}

.admin-section__title {
  font-size: var(--adm-text-lg);
  font-weight: var(--adm-weight-semibold);
}

.admin-section__desc {
  margin-top: var(--adm-space-1);
  font-size: var(--adm-text-sm);
  color: var(--adm-muted);
}

/* Mobile: sidebar off-canvas */
.admin-nav-toggle {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.admin-sidebar__backdrop {
  display: none;
}

@media (max-width: 1023px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: var(--adm-z-sidebar);
    width: min(var(--adm-sidebar-width), 88vw);
    transform: translateX(-100%);
    transition: transform var(--adm-duration-slow) var(--adm-ease);
  }

  .admin-nav-toggle:checked ~ .admin-shell .admin-sidebar {
    transform: translateX(0);
  }

  .admin-nav-toggle:checked ~ .admin-shell .admin-sidebar__backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: calc(var(--adm-z-sidebar) - 1);
    background: rgba(23, 32, 42, 0.32);
    backdrop-filter: blur(2px);
  }

  .admin-content {
    padding: var(--adm-space-6) var(--adm-space-5) calc(var(--adm-mobile-nav-height) + var(--adm-space-10));
  }

  .admin-main {
    padding-bottom: var(--adm-mobile-nav-height);
  }
}

@media (min-width: 768px) {
  .admin-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .admin-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .admin-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .admin-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}