:root {
  --admin-bg: #f1f5f9;
  --admin-surface: #ffffff;
  --admin-sidebar: #0f172a;
  --admin-sidebar-2: #111827;
  --admin-sidebar-text: rgba(255, 255, 255, 0.86);
  --admin-sidebar-muted: rgba(255, 255, 255, 0.65);
  --admin-border: rgba(148, 163, 184, 0.35);
}

body.admin {
  background: var(--admin-bg);
}

.admin-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: 12px;
  cursor: pointer;
  color: var(--navy);
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.admin-menu-toggle:hover {
  background: var(--accent-soft);
}

.admin-menu-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.admin-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(15, 23, 42, 0.45);
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
}

body.admin-menu-open .admin-backdrop {
  display: block;
}

.admin-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: linear-gradient(180deg, var(--admin-sidebar), var(--admin-sidebar-2));
  color: var(--admin-sidebar-text);
  padding: 1.25rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  z-index: 130;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.25rem 0 1.1rem;
  color: #fff;
}

.admin-brand-logo {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.25));
}

.admin-brand-text {
  min-width: 0;
}

/* Media library (cover picker) */
.media-library-wrap {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border);
}

.media-library-label {
  display: block;
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.media-library-hint {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.media-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 0.6rem;
  max-height: 220px;
  overflow-y: auto;
  padding: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
}

.media-library-item {
  position: relative;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  aspect-ratio: 1;
}

.media-library-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media-library-item:hover {
  border-color: rgba(0, 87, 155, 0.35);
}

.media-library-item.is-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 87, 155, 0.2);
}

.admin-nav {
  display: grid;
  gap: 0.35rem;
  margin-top: 1rem;
}

.admin-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 12px;
  color: var(--admin-sidebar-text);
  font-weight: 700;
  text-decoration: none;
}

.admin-nav a small {
  font-weight: 700;
  color: var(--admin-sidebar-muted);
}

.admin-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.admin-nav a.active {
  background: rgba(0, 87, 155, 0.18);
  color: #fff;
}

.admin-sidebar-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
}

.admin-sidebar-footer a {
  color: var(--admin-sidebar-text);
  padding: 0.55rem 0.75rem;
  border-radius: 12px;
  font-weight: 700;
}

.admin-sidebar-footer a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.admin-sidebar-footer a.admin-sidebar-icon-link {
  padding: 0.4rem;
}

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

.admin-topbar {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.admin-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1200px;
  width: 92%;
  margin: 0 auto;
}

.admin-topbar-start {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  flex: 1;
}

.admin-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--navy);
}

.admin-actions-top {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.admin-icon-btn {
  width: 2.65rem;
  height: 2.65rem;
  min-width: 2.65rem;
  padding: 0;
  border-radius: 50%;
}

.admin-icon-btn svg {
  display: block;
  flex-shrink: 0;
}

.admin-sidebar-icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
  color: inherit;
  opacity: 0.95;
}

.admin-sidebar-icon-link:hover {
  opacity: 1;
}

.admin-sidebar-icon-link svg {
  display: block;
}

.admin-content {
  padding: 1.75rem 0 3.25rem;
}

.admin-content .container {
  width: min(1200px, 92%);
}

/* Login page */
.admin-auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 0;
}

.admin-auth-card {
  width: min(520px, 92%);
}

@media (max-width: 900px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    height: 100dvh;
    min-height: -webkit-fill-available;
    width: min(320px, 88vw);
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    box-shadow: 10px 0 40px rgba(15, 23, 42, 0.18);
    border-right: 1px solid rgba(148, 163, 184, 0.25);
  }

  body.admin-menu-open .admin-sidebar {
    transform: translateX(0);
  }

  body.admin-menu-open {
    overflow: hidden;
  }

  .admin-menu-toggle {
    display: inline-flex;
    flex-shrink: 0;
    margin-right: 0;
    margin-left: auto;
    padding-left: 0.5rem;
    padding-right: max(0.65rem, env(safe-area-inset-right, 0px));
    border-radius: 0;
    align-self: stretch;
    min-height: 2.75rem;
  }

  .admin-topbar {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255, 255, 255, 0.98);
    padding: 1rem 0 1rem 1.25rem;
  }

  .admin-topbar-inner {
    width: 100%;
    max-width: none;
    margin: 0;
    gap: 0.5rem;
    justify-content: flex-start;
  }

  .admin-content {
    padding-top: 1.25rem;
  }
}