/* ==========================================================================
   MY SCHOOL PLATFORM — ADMIN PORTAL DESIGN SYSTEM & STYLES (css/admin.css)
   ========================================================================== */

:root {
  --admin-navy-dark: #0f2440;
  --admin-navy-primary: #1a365d;
  --admin-navy-light: #2b4c7e;
  --admin-primary: #B91C5C;
  --admin-primary-hover: #9e144c;
  --admin-bg-light: #f8fafc;
  --admin-card-bg: #ffffff;
  --admin-border-color: #e2e8f0;
  --admin-text-main: #1e293b;
  --admin-text-muted: #64748b;
  --admin-success: #16a34a;
  --admin-warning: #ea580c;
  --admin-danger: #dc2626;
  --admin-info: #0284c7;
  --admin-font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --admin-font-display: 'Merriweather', Georgia, serif;
  --admin-sidebar-width: 260px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
h1, h2, h3, h4, h5, h6,
p,
figure,
blockquote,
dl, dd {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
}

body.admin-body,
body {
  font-family: var(--admin-font-sans);
  background-color: var(--admin-bg-light);
  color: var(--admin-text-main);
  min-height: 100vh;
  display: flex;
}

/* --- SIDEBAR --- */
.admin-sidebar {
  width: var(--admin-sidebar-width);
  height: 100vh;
  height: 100dvh;
  max-height: 100vh;
  max-height: 100dvh;
  background: linear-gradient(180deg, var(--admin-navy-dark) 0%, var(--admin-navy-primary) 100%);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  transition: transform 0.3s ease;
  box-shadow: 4px 0 15px rgba(0,0,0,0.1);
}

.admin-sidebar__header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar__logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: contain;
  border: 2px solid rgba(255,255,255,0.3);
}

.admin-sidebar__logo-wrapper.logo-coin {
  width: 40px;
  height: 40px;
}

.admin-sidebar__title {
  font-family: var(--admin-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

.admin-sidebar__subtitle {
  font-size: 0.725rem;
  color: rgba(255,255,255,0.7);
  margin-top: 2px;
}

.admin-sidebar__nav {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 16px 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

/* Custom Admin Sidebar Scrollbar */
.admin-sidebar__nav::-webkit-scrollbar,
.admin-sidebar::-webkit-scrollbar {
  width: 5px;
}

.admin-sidebar__nav::-webkit-scrollbar-track,
.admin-sidebar::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 10px;
}

.admin-sidebar__nav::-webkit-scrollbar-thumb,
.admin-sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.22);
  border-radius: 10px;
  transition: background 0.2s ease;
}

.admin-sidebar__nav::-webkit-scrollbar-thumb:hover,
.admin-sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.45);
}

.admin-sidebar__section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.45);
  margin: 16px 12px 6px 12px;
}

.admin-sidebar__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  margin-bottom: 2px;
}

.admin-sidebar__link:hover {
  background: rgba(255,255,255,0.1);
  color: #ffffff;
}

.admin-sidebar__link.is-active {
  background: var(--admin-primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(185,28,92,0.35);
}

.admin-sidebar__badge {
  margin-left: auto;
  background: var(--admin-primary);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 12px;
}

.admin-sidebar__footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0,0,0,0.15);
}

.admin-sidebar__user-avatar {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
}

.admin-sidebar__user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
}

.admin-sidebar__user-role {
  font-size: 0.725rem;
  color: rgba(255,255,255,0.6);
}

/* --- MAIN LAYOUT --- */
.admin-main {
  flex: 1;
  margin-left: var(--admin-sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  height: 72px;
  background: var(--admin-card-bg);
  border-bottom: 1px solid var(--admin-border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 900;
}

.admin-topbar__toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--admin-text-main);
  cursor: pointer;
}

.admin-topbar__title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--admin-navy-dark);
}

.admin-topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-content {
  padding: 28px;
  flex: 1;
  max-width: 1600px;
  width: 100%;
}

/* --- STAT CARDS --- */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.admin-stat-card {
  background: var(--admin-card-bg);
  border-radius: 14px;
  padding: 20px 24px;
  border: 1px solid var(--admin-border-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.admin-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.06);
}

.admin-stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.admin-stat-icon--primary { background: rgba(185,28,92,0.1); color: var(--admin-primary); }
.admin-stat-icon--navy { background: rgba(26,54,93,0.1); color: var(--admin-navy-primary); }
.admin-stat-icon--success { background: rgba(22,163,74,0.1); color: var(--admin-success); }
.admin-stat-icon--warning { background: rgba(234,88,12,0.1); color: var(--admin-warning); }

.admin-stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--admin-navy-dark);
  line-height: 1;
}

.admin-stat-label {
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  font-weight: 500;
  margin-top: 4px;
}

/* --- CARDS & PANELS --- */
.admin-panel {
  background: var(--admin-card-bg);
  border-radius: 14px;
  border: 1px solid var(--admin-border-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  padding: 24px;
  margin-bottom: 24px;
}

.admin-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--admin-border-color);
}

.admin-panel__title {
  font-family: var(--admin-font-display);
  font-size: 1.15rem;
  color: var(--admin-navy-dark);
}

/* --- BUTTONS --- */
.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s ease;
}

.admin-btn--primary {
  background: var(--admin-primary);
  color: #ffffff;
}

.admin-btn--primary:hover {
  background: var(--admin-primary-hover);
  box-shadow: 0 4px 12px rgba(185,28,92,0.3);
}

.admin-btn--secondary {
  background: #f1f5f9;
  color: #475569;
}

.admin-btn--secondary:hover {
  background: #e2e8f0;
}

.admin-btn--outline {
  background: transparent;
  border: 1px solid var(--admin-border-color);
  color: var(--admin-text-main);
}

.admin-btn--outline:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.admin-btn--danger {
  background: var(--admin-danger);
  color: #ffffff;
}

.admin-btn--danger:hover {
  background: #b91c1c;
}

.admin-btn--sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* --- TABLES --- */
.admin-table-container {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.admin-table th {
  background: #f8fafc;
  padding: 12px 16px;
  font-weight: 600;
  color: #475569;
  border-bottom: 1px solid var(--admin-border-color);
  text-transform: uppercase;
  font-size: 0.725rem;
  letter-spacing: 0.05em;
}

.admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--admin-border-color);
  vertical-align: middle;
}

.admin-table tr:hover td {
  background: #f8fafc;
}

/* --- BADGES --- */
.admin-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.admin-badge--success { background: #dcfce7; color: #15803d; }
.admin-badge--warning { background: #ffedd5; color: #c2410c; }
.admin-badge--danger { background: #fee2e2; color: #b91c1c; }
.admin-badge--info { background: #e0f2fe; color: #0369a1; }
.admin-badge--purple { background: #f3e8ff; color: #6b21a8; }

/* --- FORM CONTROLS --- */
.admin-form-group {
  margin-bottom: 18px;
}

.admin-form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 6px;
}

.admin-form-input,
.admin-form-select,
.admin-form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  background: #ffffff;
  color: var(--admin-text-main);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.admin-form-input:focus,
.admin-form-select:focus,
.admin-form-textarea:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(185,28,92,0.15);
}

/* --- MODAL DIALOGS --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  overflow-y: auto;
}

.modal-dialog {
  background: #ffffff;
  width: 100%;
  max-width: 650px;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  animation: adminModalScale 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes adminModalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* --- TOAST NOTIFICATIONS --- */
.admin-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-toast {
  background: #1e293b;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: adminSlideIn 0.3s ease;
}

.admin-toast--success { border-left: 4px solid var(--admin-success, #10b981); }
.admin-toast--warning { border-left: 4px solid var(--admin-warning, #f59e0b); }
.admin-toast--info, .admin-toast--loading { border-left: 4px solid var(--admin-primary, #6366f1); }
.admin-toast--error { border-left: 4px solid var(--admin-danger, #ef4444); }

@keyframes adminSlideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* --- COMPREHENSIVE RESPONSIVE DESIGN SYSTEM --- */

/* Sidebar Overlay Backdrop for Mobile/Tablet */
.admin-sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 995;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.admin-sidebar-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

/* Tablet & Large Mobile (<= 992px) */
@media (max-width: 992px) {
  .admin-sidebar {
    transform: translateX(-100%);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.25);
  }

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

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

  .admin-topbar__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: #f1f5f9;
    font-size: 20px;
  }

  .admin-topbar {
    padding: 0 16px;
  }

  .admin-content {
    padding: 20px 16px;
  }

  .admin-stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
  }
}

/* Utility Classes for Grid Layouts */
.admin-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.admin-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.admin-grid-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 20px;
}

.admin-dashboard-two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.admin-quick-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Medium Mobile & Tablet Portrait (<= 768px) */
@media (max-width: 768px) {
  .admin-topbar {
    height: auto;
    min-height: 56px;
    padding: 12px 14px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .admin-topbar__title {
    font-size: 1rem;
  }

  .admin-topbar__actions {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
  }

  .admin-content {
    padding: 16px 12px;
  }

  .admin-panel {
    padding: 16px 14px;
    border-radius: 12px;
  }

  .admin-panel__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .admin-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .admin-stat-card {
    padding: 14px;
    gap: 10px;
    border-radius: 10px;
  }

  .admin-stat-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .admin-stat-number {
    font-size: 1.35rem;
  }

  /* Form & Modal Responsiveness */
  .modal-dialog,
  .admin-modal-card {
    width: 95vw !important;
    max-width: 95vw !important;
    max-height: 92vh !important;
    overflow-y: auto;
    padding: 18px 14px !important;
    margin: 10px auto !important;
    border-radius: 12px !important;
  }

  /* Universal Mobile Grid & Form Row Overrides */
  .admin-form-row,
  .admin-grid-2,
  .admin-grid-3,
  .admin-grid-1-2,
  .admin-dashboard-two-col,
  .admin-quick-actions-grid,
  *[style*="grid-template-columns: 1fr 1fr"],
  *[style*="grid-template-columns: 1fr 1fr 1fr"],
  *[style*="grid-template-columns: 1fr 2fr"],
  *[style*="grid-template-columns: repeat(auto-fit, minmax(320px, 1fr))"] {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .admin-quick-actions-grid a {
    grid-column: span 1 !important;
  }

  /* Universal Inline Max-Width Overrides */
  *[style*="max-width: 360px"],
  *[style*="max-width: 500px"],
  *[style*="max-width: 650px"],
  *[style*="max-width: 700px"] {
    max-width: 100% !important;
  }

  /* Gallery Grid Mobile Overrides */
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)) !important;
    gap: 12px !important;
  }

  /* STRICT NON-HORIZONTAL SCROLLABLE SYSTEM FOR PAGE LAYOUT (ZERO HORIZONTAL BODY OVERFLOW) */
  html,
  body,
  .admin-body,
  .admin-main,
  .admin-content,
  .admin-panel {
    max-width: 100vw !important;
    overflow-x: clip !important;
  }

  .admin-table-container {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 8px;
  }

  .admin-table {
    width: 100% !important;
    min-width: 600px;
    border-collapse: collapse;
  }

  .admin-table th,
  .admin-table td {
    padding: 10px 10px !important;
    font-size: 0.8rem !important;
    white-space: normal !important;
    word-break: break-word !important;
    overflow-wrap: anywhere !important;
  }

  /* Filter Toolbar Responsiveness */
  .filter-group,
  .admin-toolbar-actions {
    width: 100% !important;
    flex-wrap: wrap !important;
    overflow-x: hidden !important;
    white-space: normal !important;
    gap: 6px !important;
    padding-bottom: 4px;
  }

  .admin-table td .admin-btn {
    padding: 5px 8px;
    font-size: 0.75rem;
  }

  .admin-toast-container {
    bottom: 16px;
    right: 16px;
    left: 16px;
  }

  .admin-toast {
    font-size: 0.825rem;
    padding: 10px 14px;
  }
}

/* --- SMALL MOBILE & COMPACT SMARTPHONES (<= 480px) --- */
@media (max-width: 480px) {
  /* Layout & Padding */
  .admin-content {
    padding: 12px 8px !important;
  }

  .admin-panel {
    padding: 12px 10px !important;
    border-radius: 10px !important;
    margin-bottom: 16px !important;
  }

  .admin-panel__header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
    margin-bottom: 12px !important;
    padding-bottom: 10px !important;
  }

  .admin-panel__title {
    font-size: 0.95rem !important;
  }

  /* Topbar Header */
  .admin-topbar {
    padding: 10px 10px !important;
    gap: 8px !important;
  }

  .admin-topbar__title {
    font-size: 0.875rem !important;
    line-height: 1.25 !important;
    word-break: break-word;
  }

  .admin-topbar__toggle {
    width: 34px !important;
    height: 34px !important;
    font-size: 18px !important;
    flex-shrink: 0;
  }

  .admin-topbar__actions {
    width: 100% !important;
    display: flex !important;
    gap: 6px !important;
  }

  .admin-topbar__actions .admin-btn {
    flex: 1 !important;
    justify-content: center !important;
    text-align: center !important;
  }

  /* Stat Cards */
  .admin-stats-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
    margin-bottom: 16px !important;
  }

  .admin-stat-card {
    padding: 12px 14px !important;
    gap: 12px !important;
  }

  .admin-stat-icon {
    width: 38px !important;
    height: 38px !important;
    font-size: 16px !important;
    border-radius: 8px !important;
  }

  .admin-stat-number {
    font-size: 1.25rem !important;
  }

  .admin-stat-label {
    font-size: 0.75rem !important;
  }

  /* Buttons */
  .admin-btn {
    padding: 7px 12px !important;
    font-size: 0.8rem !important;
    border-radius: 6px !important;
  }

  .admin-btn--sm {
    padding: 4px 8px !important;
    font-size: 0.725rem !important;
  }

  /* Form Controls */
  .admin-form-group {
    margin-bottom: 12px !important;
  }

  .admin-form-label {
    font-size: 0.8rem !important;
    margin-bottom: 4px !important;
  }

  .admin-form-input,
  .admin-form-select,
  .admin-form-textarea {
    padding: 8px 10px !important;
    font-size: 0.825rem !important;
    border-radius: 6px !important;
  }

  /* Search & Filter Toolbar */
  .admin-panel input[type="text"],
  .admin-form-input {
    width: 100% !important;
    max-width: 100% !important;
  }

  .filter-btn {
    padding: 4px 8px !important;
    font-size: 0.725rem !important;
  }

  /* Modals */
  .modal-backdrop {
    padding: 8px !important;
  }

  .modal-dialog,
  .admin-modal-card {
    width: 98vw !important;
    max-width: 98vw !important;
    max-height: 94vh !important;
    padding: 14px 10px !important;
    border-radius: 10px !important;
    margin: 4px auto !important;
  }

  /* Tables */
  .admin-table-container {
    border-radius: 8px !important;
    margin-bottom: 8px !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    width: 100% !important;
    max-width: 100% !important;
  }

  .admin-table {
    min-width: 560px;
    width: 100% !important;
  }

  .admin-table th {
    padding: 8px 8px !important;
    font-size: 0.7rem !important;
    word-break: break-word !important;
  }

  .admin-table td {
    padding: 8px 8px !important;
    font-size: 0.775rem !important;
    word-break: break-word !important;
  }

  /* Sidebar */
  .admin-sidebar {
    width: 270px !important;
  }

  /* Login Card */
  .admin-login-card {
    margin: 0;
    width: 100%;
  }

  .admin-login-header {
    padding: 20px 16px;
  }

  .admin-login-form {
    padding: 20px 16px;
  }
}

/* --- EXTRA SMALL SMARTPHONES (<= 380px) --- */
@media (max-width: 380px) {
  .admin-topbar__title {
    font-size: 0.8rem !important;
  }

  .admin-btn {
    font-size: 0.75rem !important;
    padding: 6px 10px !important;
  }

  .admin-table {
    min-width: 0 !important;
    width: 100% !important;
    table-layout: fixed !important;
  }
}

/* ==========================================================================
   SCHOOL INFORMATION & ROLE-BASED PERMISSIONS STYLES
   ========================================================================== */

/* Protected Section Banner */
.admin-protected-banner {
  background: #fff8f6;
  border: 1px solid #fecaca;
  border-left: 4px solid #dc2626;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: #991b1b;
}

.admin-protected-banner__icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.admin-protected-banner__text {
  line-height: 1.4;
}

/* Lock Badge */
.admin-lock-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #cbd5e1;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.725rem;
  font-weight: 600;
  margin-left: 8px;
}

.admin-lock-badge--super {
  background: #fef3c7;
  color: #92400e;
  border-color: #fde68a;
}

/* Read-Only & Protected Input Styling */
.admin-form-group.is-protected .admin-form-input,
.admin-form-group.is-protected .admin-form-textarea,
.admin-form-input[readonly],
.admin-form-textarea[readonly] {
  background-color: #f8fafc;
  color: #475569;
  border-color: #e2e8f0;
  cursor: not-allowed;
  box-shadow: none;
}

.admin-form-input[readonly]:focus,
.admin-form-textarea[readonly]:focus {
  border-color: #cbd5e1;
  box-shadow: none;
}

/* Section Jump Nav Bar */
.admin-section-nav {
  display: flex;
  gap: 8px;
  background: var(--admin-card-bg);
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--admin-border-color);
  margin-bottom: 24px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.admin-section-nav__link {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--admin-text-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.admin-section-nav__link:hover {
  background: #e2e8f0;
  color: var(--admin-navy-dark);
}

.admin-section-nav__link.is-active {
  background: var(--admin-navy-dark);
  color: #ffffff;
  border-color: var(--admin-navy-dark);
}

/* Role Simulator Strip */
.role-simulator-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #0f2440 0%, #1e3a8a 100%);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 12px;
  margin-bottom: 24px;
  box-shadow: 0 4px 12px rgba(15,36,64,0.15);
  flex-wrap: wrap;
}

.role-simulator-bar__title {
  font-size: 0.875rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.role-simulator-bar__select {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.15);
  color: #ffffff;
  font-size: 0.825rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

.role-simulator-bar__select option {
  background: #0f2440;
  color: #ffffff;
}

.role-simulator-bar__info {
  font-size: 0.775rem;
  color: rgba(255,255,255,0.8);
  margin-left: auto;
}

/* Character Counters */
.admin-form-label-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.char-counter {
  font-size: 0.75rem;
  color: var(--admin-text-muted);
  font-weight: 500;
}

.char-counter.is-near-limit {
  color: var(--admin-warning);
}

.char-counter.is-at-limit {
  color: var(--admin-danger);
  font-weight: 700;
}

/* Photo Upload & Preview Component */
.principal-photo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  background: #f8fafc;
  text-align: center;
  transition: border-color 0.2s;
}

.principal-photo-card:hover {
  border-color: var(--admin-primary);
}

.principal-photo-preview {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--admin-primary);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  margin-bottom: 12px;
}

.principal-photo-placeholder {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 12px;
  border: 2px solid #cbd5e1;
}

/* Audit Log Table Diff Highlights */
.audit-diff-old {
  background-color: #fee2e2;
  color: #991b1b;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.8rem;
  text-decoration: line-through;
  display: inline-block;
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.audit-diff-new {
  background-color: #dcfce7;
  color: #166534;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-block;
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.audit-timestamp {
  font-size: 0.775rem;
  color: var(--admin-text-muted);
  white-space: nowrap;
}

/* Card Header Action & Last Updated */
.admin-panel__meta {
  font-size: 0.775rem;
  color: var(--admin-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Footer Section Action Bar */
.admin-panel__footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--admin-border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   SCHOOL INFORMATION & ERP RESPONSIVE SYSTEM
   ========================================================================== */

/* Topbar Brand & Toggle */
.admin-topbar__brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  flex: 1 1 auto;
}

/* Grid Layouts for Identity, Principal, & Contact */
.admin-grid-identity {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  margin-bottom: 18px;
}

.admin-grid-principal {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
}

.admin-grid-contact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* Photo & Logo Card Styling */
.identity-logo-card {
  padding: 16px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.identity-logo-preview {
  border-radius: 12px;
  width: 96px;
  height: 96px;
  object-fit: contain;
  border: 2px solid var(--admin-navy-primary);
  background: #ffffff;
  margin-bottom: 8px;
}

.identity-logo-btn {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}

.principal-photo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  background: #f8fafc;
  text-align: center;
  transition: border-color 0.2s;
}

.principal-photo-card:hover {
  border-color: var(--admin-primary);
}

.principal-photo-preview {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--admin-primary);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  margin-bottom: 10px;
}

.principal-photo-placeholder {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  background: #e2e8f0;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  margin-bottom: 10px;
  border: 2px solid #cbd5e1;
}

.principal-photo-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  margin-top: 6px;
}

.principal-photo-actions .admin-btn {
  width: 100%;
  justify-content: center;
}

/* Modal Dialog Inner Components */
.modal-dialog__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--admin-navy-dark);
  padding-bottom: 12px;
  margin-bottom: 18px;
}

.modal-dialog__title {
  font-family: var(--admin-font-display);
  color: var(--admin-navy-dark);
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-dialog__close {
  background: none;
  border: none;
  font-size: 26px;
  cursor: pointer;
  color: var(--admin-text-muted);
  line-height: 1;
  padding: 4px;
  transition: color 0.2s ease;
}

.modal-dialog__close:hover {
  color: var(--admin-danger);
}

.confirm-diff-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 18px;
}

.confirm-diff-box__title {
  font-size: 0.8rem;
  font-weight: 700;
  color: #475569;
  text-transform: uppercase;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.confirm-diff-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  word-break: break-word;
}

.confirm-diff-note {
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  margin-bottom: 20px;
  line-height: 1.45;
}

.modal-dialog__footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Tablet & Intermediate Desktop Responsiveness (<= 992px) */
@media (max-width: 992px) {
  .admin-grid-identity,
  .admin-grid-principal {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .identity-logo-card,
  .principal-photo-card {
    max-width: 340px;
    margin: 0 auto;
    width: 100%;
  }

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

/* Mobile & Tablet Portrait (<= 768px) */
@media (max-width: 768px) {
  .admin-grid-contact {
    grid-template-columns: 1fr !important;
  }

  .role-simulator-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    gap: 10px;
  }

  .role-simulator-bar__select {
    width: 100%;
  }

  .role-simulator-bar__info {
    margin-left: 0;
    font-size: 0.775rem;
  }

  .admin-section-nav {
    padding: 8px 12px;
    gap: 6px;
  }

  .admin-section-nav__link {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .principal-photo-card,
  .identity-logo-card {
    align-items: center;
    text-align: center;
    padding: 16px;
    max-width: 100%;
    width: 100%;
  }

  .principal-photo-preview,
  .principal-photo-placeholder,
  .identity-logo-preview {
    margin-left: auto;
    margin-right: auto;
  }

  .admin-panel__footer {
    flex-direction: column-reverse;
    align-items: stretch;
    gap: 10px;
    text-align: center;
  }

  .admin-panel__footer .admin-btn {
    width: 100%;
    justify-content: center;
  }

  .admin-panel__meta {
    text-align: center;
    justify-content: center;
  }

  .admin-topbar__actions {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .admin-topbar__actions .admin-btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .modal-dialog__footer {
    flex-direction: column-reverse;
    align-items: stretch;
    gap: 10px;
  }

  .modal-dialog__footer .admin-btn {
    width: 100%;
    justify-content: center;
  }
}

/* Small Smart Devices (<= 480px) */
@media (max-width: 480px) {
  .admin-section-nav {
    padding: 6px 10px;
    gap: 6px;
  }

  .admin-section-nav__link {
    padding: 6px 10px;
    font-size: 0.75rem;
  }

  .admin-panel__title {
    font-size: 1rem;
    flex-wrap: wrap;
    line-height: 1.35;
  }

  .admin-lock-badge {
    font-size: 0.65rem;
    padding: 2px 6px;
  }

  .audit-diff-old,
  .audit-diff-new {
    max-width: 140px;
  }
}

/* --- PROGRESSIVE LOADING & SKELETON STATES --- */
.admin-skeleton {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: adminSkeletonShimmer 1.5s infinite;
  border-radius: 4px;
  display: inline-block;
}

@keyframes adminSkeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.admin-stat-number.is-loading {
  display: inline-block;
  min-width: 40px;
  height: 24px;
  border-radius: 6px;
}