/* ──── Dropdown portal (header menus portaled here for consistent blur on all pages) ──── */
#dropdown-portal {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10002;
}

#dropdown-portal .user-dropdown {
  pointer-events: auto;
}

/* ──── Global notification banner (fixed below header, used for all errors/success) ──── */
.site-notification-banner {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  text-align: center;
  background: rgba(240, 62, 62, 0.75);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: white;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  box-sizing: border-box;
  z-index: 50;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.site-notification-banner.site-notification-banner--success {
  background: rgba(55, 178, 77, 0.75);
}

.site-notification-banner.site-notification-banner--info {
  background: rgba(28, 126, 214, 0.75);
}

.site-notification-banner[hidden] {
  display: none !important;
}

/* ──── Header ──── */
.header {
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: box-shadow var(--transition-normal);
}

[data-theme="dark"] .header {
  background: rgba(13, 24, 36, 0.92);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  border-bottom-color: transparent;
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

/* ──── Logo ──── */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--text-primary);
}

.logo-icon,
.logo-icon-img {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  object-fit: contain;
}

.logo-icon {
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.logo-text {
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
}

/* ──── Nav ──── */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.btn-nav {
  min-width: 88px;
}

/* ──── Theme Toggle ──── */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--text-muted);
  font-size: 1.1rem;
  border-radius: var(--radius-full);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

[data-theme="dark"] .theme-toggle:hover {
  background: var(--color-primary-900);
}

/* Search button — same style as theme-toggle */
.search-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--text-muted);
  font-size: 1.1rem;
  border-radius: var(--radius-full);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.search-btn:hover {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

[data-theme="dark"] .search-btn:hover {
  background: var(--color-primary-900);
}

/* ──── User Menu ──── */
.user-menu {
  position: relative;
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
  border: none;
  background: none;
  color: var(--text-primary);
  font-family: inherit;
}

.user-menu-trigger:hover {
  background: var(--bg-tertiary);
}

.user-menu-trigger .text-sm {
  font-weight: var(--font-weight-semibold);
}

.user-dropdown {
  position: fixed;
  /* top/right set by JS */
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 210px;
  display: none;
  z-index: 10002;
  transform: translateZ(0);
  overflow: hidden;
  animation: dropdownIn 0.15s ease;
}

[data-theme="dark"] .user-dropdown {
  background: rgba(23, 32, 48, 0.88);
}

@keyframes dropdownIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.user-dropdown.active {
  display: block;
}

.user-dropdown a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem var(--space-lg);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  margin: var(--space-xs) var(--space-sm);
  margin-bottom: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.user-dropdown a:last-of-type {
  margin-bottom: var(--space-xs);
}

.user-dropdown a i {
  width: 16px;
  text-align: center;
  color: var(--text-muted);
}

.user-dropdown a:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-primary);
}

[data-theme="dark"] .user-dropdown a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.user-dropdown .divider {
  height: 1px;
  background: var(--border-color);
  margin: 0 var(--space-sm);
}

/* ──── Mobile Menu ──── */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--text-primary);
  font-size: 1.3rem;
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: var(--bg-tertiary);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    z-index: 99;
    gap: var(--space-xs);
  }

  .nav-links.mobile-open .nav-link {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
  }

  .btn-nav {
    min-width: unset;
    font-size: var(--font-size-sm);
  }
}

/* ──── Footer ──── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.footer-follow {
  padding: var(--space-2xl) 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.footer-follow h3 {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.footer-follow p {
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
}

.footer-bottom {
  padding: var(--space-lg) 0;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-text {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* ──── Page Header ──── */
.page-header {
  padding: var(--space-2xl) 0 var(--space-xl);
}

.page-header h1 {
  margin-bottom: var(--space-sm);
}

.page-header p {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  margin: 0;
}

/* ──── Admin Layout ──── */
.admin-layout {
  display: flex;
  min-height: calc(100vh - var(--header-height));
}

.admin-sidebar {
  width: var(--sidebar-width);
  background: var(--bg-card);
  border-right: 1px solid var(--border-color);
  padding: var(--space-xl) var(--space-lg);
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.admin-sidebar-nav {
  flex: 1 1 auto;
  overflow-y: auto;
  min-height: 0;
}

.admin-sidebar-footer {
  margin-top: auto;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.admin-sidebar-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 var(--space-md) var(--space-sm);
  margin-bottom: var(--space-xs);
}

.admin-sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.65rem var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: 2px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.admin-sidebar .nav-link i {
  width: 18px;
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.75;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.admin-sidebar .nav-link.active i {
  opacity: 1;
}

[data-theme="dark"] .admin-sidebar .nav-link:hover,
[data-theme="dark"] .admin-sidebar .nav-link.active {
  background: var(--color-primary-900);
}

.admin-content {
  flex: 1;
  padding: var(--space-xl) clamp(1rem, 3vw, var(--space-2xl));
  min-width: 0;
}

@media (max-width: 900px) {
  .admin-layout {
    flex-direction: column;
  }

  .admin-sidebar {
    width: 100%;
    height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-lg);
    flex-direction: column;
    align-items: stretch;
  }

  .admin-sidebar-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-xs);
  }

  .admin-sidebar-nav .nav-link {
    margin-bottom: 0;
  }

  .admin-sidebar-footer {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    display: flex;
    justify-content: center;
  }

  .admin-sidebar-footer .nav-link {
    margin-bottom: 0;
  }

  .admin-sidebar-title {
    display: none;
  }

  .admin-sidebar .nav-link {
    margin-bottom: 0;
    font-size: var(--font-size-xs);
    padding: 0.5rem var(--space-md);
  }
}

/* ──── Stat Cards ──── */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: box-shadow var(--transition-normal);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-card-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-card-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.2rem;
  margin-bottom: var(--space-lg);
}

[data-theme="dark"] .stat-card-icon {
  background: var(--color-primary-900);
}