/* ==========================================================================
   RSN Education - Enterprise Interactive Portal
   Design System & Styling
   ========================================================================== */

:root {
  color-scheme: dark;
  --color-primary: #C8102E;
  --color-primary-hover: #A00C24;
  --color-primary-glow: rgba(200, 16, 46, 0.4);
  --color-primary-light: #FF2E4F;
  
  --color-trust-blue: #0EA5E9;
  --color-trust-cyan: #38BDF8;
  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.14);
  --color-warning: #F59E0B;
  --color-warning-bg: rgba(245, 158, 11, 0.14);
  --color-info: #06B6D4;
  --color-info-bg: rgba(6, 182, 212, 0.14);

  --color-silver: #F8FAFC;
  --color-silver-muted: #94A3B8;
  --color-bg-base: #080D1A;
  --color-bg-surface: #0E1626;
  --color-bg-card: rgba(17, 26, 46, 0.72);
  --color-bg-card-hover: rgba(23, 34, 60, 0.85);
  --color-border: rgba(255, 255, 255, 0.10);
  --color-border-glow: rgba(14, 165, 233, 0.4);
  
  --color-text-primary: #F8FAFC;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --radius-full: 9999px;
  
  --shadow-glass: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 25px var(--color-primary-glow);
  
  --font-arabic: 'Cairo', system-ui, sans-serif;
  --font-display: 'Outfit', var(--font-arabic);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-arabic);
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  direction: rtl;
  text-align: right;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 10% 15%, rgba(200, 16, 46, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(14, 165, 233, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #080D1A 0%, #050811 100%);
  background-attachment: fixed;
}

/* Ambient Glowing Background Orbs */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
}
.glow-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  left: -100px;
  background: rgba(14, 165, 233, 0.15);
}
.glow-2 {
  width: 450px;
  height: 450px;
  bottom: 50px;
  right: -100px;
  background: rgba(200, 16, 46, 0.18);
}
.glow-3 {
  width: 600px;
  height: 600px;
  top: 40%;
  left: 30%;
  background: rgba(16, 185, 129, 0.07);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-base);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* Typography Helpers */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   Layout & Navigation
   ========================================================================== */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: 280px;
  background: rgba(14, 18, 30, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;
  z-index: 100;
  transition: transform var(--transition-smooth);
}

.brand-section {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--color-border);
}

.brand-logo-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 16px var(--color-primary-glow);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.brand-text h2 {
  font-size: 1.15rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FFFFFF 30%, var(--color-silver) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.7rem;
  background: rgba(200, 16, 46, 0.2);
  color: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 1px solid rgba(200, 16, 46, 0.4);
  display: inline-block;
  margin-top: 2px;
}

/* Navigation Links */
.nav-menu {
  padding: 16px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-primary);
  transform: translateX(-3px);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(200, 16, 46, 0.25) 0%, rgba(200, 16, 46, 0.08) 100%);
  color: #FFFFFF;
  border-color: rgba(200, 16, 46, 0.4);
  box-shadow: 0 4px 16px rgba(200, 16, 46, 0.2);
}

.nav-item i {
  font-size: 1.15rem;
  width: 24px;
  text-align: center;
}

.nav-item.active i {
  color: var(--color-primary-light);
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 18px 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 12, 19, 0.5);
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 10px var(--color-success);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* Main Content Area */
.main-wrapper {
  margin-right: 280px;
  flex: 1;
  padding: 32px;
  max-width: 1600px;
}

/* Top Bar */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.page-title h1 {
  font-size: 1.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-title p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 4px;
}

.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 16, 46, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-success {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #FFFFFF;
}

/* ==========================================================================
   Dashboard Sections & Cards
   ========================================================================== */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: rgba(17, 26, 46, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-lg);
  padding: 22px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition: all var(--transition-smooth);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(14, 165, 233, 0.4);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 25px rgba(14, 165, 233, 0.2);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-trust-blue), transparent);
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.stat-title {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.stat-icon.red { color: var(--color-primary-light); background: rgba(200, 16, 46, 0.18); border-color: rgba(200, 16, 46, 0.3); }
.stat-icon.green { color: var(--color-success); background: var(--color-success-bg); border-color: rgba(16, 185, 129, 0.3); }
.stat-icon.amber { color: var(--color-warning); background: var(--color-warning-bg); border-color: rgba(245, 158, 11, 0.3); }
.stat-icon.cyan { color: var(--color-trust-cyan); background: rgba(14, 165, 233, 0.18); border-color: rgba(14, 165, 233, 0.3); }

.stat-value {
  font-size: 2.1rem;
  font-weight: 800;
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #FFFFFF 40%, var(--color-silver-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 6px;
  color: var(--color-success);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.chart-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.chart-header h3 {
  font-size: 1.15rem;
}

.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

/* Data Table Container */
.panel-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.search-box {
  position: relative;
  min-width: 260px;
}

.search-box input {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 38px 10px 14px;
  color: #FFFFFF;
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.search-box i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

/* Tables */
.data-table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: right;
}

.data-table th {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.92rem;
  color: var(--color-text-primary);
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-success { background: var(--color-success-bg); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-danger  { background: rgba(200, 16, 46, 0.15); color: var(--color-primary-light); border: 1px solid rgba(200, 16, 46, 0.3); }
.badge-info    { background: var(--color-info-bg); color: var(--color-info); border: 1px solid rgba(6, 182, 212, 0.2); }

/* Form Styles */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: #FFFFFF;
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  transition: all var(--transition-fast);
}

/* Ensure native dropdown popups have crisp dark background and pure white text */
select option,
select optgroup,
.form-group select option,
.form-group select optgroup {
  background-color: #151928 !important;
  color: #FFFFFF !important;
  padding: 10px 14px;
  font-size: 0.95rem;
}

select option:checked,
select option:hover {
  background-color: var(--color-primary) !important;
  color: #FFFFFF !important;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary-glow);
  background: rgba(255, 255, 255, 0.06);
}

/* Multi-Step Wizard */
.wizard-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 36px;
}

.wizard-steps::before {
  content: '';
  position: absolute;
  top: 20px;
  right: 40px;
  left: 40px;
  height: 2px;
  background: var(--color-border);
  z-index: 1;
}

.step-indicator {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.step-circle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-bg-surface);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-text-muted);
  transition: all var(--transition-smooth);
}

.step-indicator.active .step-circle {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 0 16px var(--color-primary-glow);
}

.step-indicator.done .step-circle {
  border-color: var(--color-success);
  background: var(--color-success);
  color: #FFFFFF;
}

.step-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* Modal Popup */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  padding: 28px;
  box-shadow: var(--shadow-card);
  transform: scale(0.95);
  transition: transform var(--transition-smooth);
}

.modal-overlay.active .modal-box {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #FFFFFF;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: rgba(22, 28, 44, 0.95);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  border-right: 4px solid var(--color-primary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideIn 0.3s ease;
  font-weight: 600;
  font-size: 0.9rem;
}

@keyframes slideIn {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* User Profile in Sidebar */
.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}
.user-avatar-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), #8b0018);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  font-size: 1rem;
}
.user-meta {
  flex: 1;
  overflow: hidden;
}
.user-display-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.user-role-tag {
  font-size: 0.72rem;
  color: var(--color-primary-light);
  background: rgba(200, 16, 46, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-block;
}
.logout-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}
.logout-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* Sub-tabs Navigation */
.sub-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 10px;
}
.sub-tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-family: var(--font-arabic);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}
.sub-tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.sub-tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

/* Filter Toolbar */
.filter-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
  background: var(--color-bg-card);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: 20px;
}
.filter-item {
  flex: 1;
  min-width: 160px;
}
.filter-item label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  margin-bottom: 6px;
}
.filter-item select, .filter-item input {
  width: 100%;
  padding: 9px 12px;
  background: rgba(10, 12, 19, 0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-arabic);
  font-size: 0.88rem;
}

/* Grade Entry Matrix */
.grade-input-box {
  width: 75px;
  padding: 6px 8px;
  text-align: center;
  font-weight: 700;
  font-size: 1rem;
  background: rgba(10, 12, 19, 0.9);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: #fff;
  outline: none;
  transition: border-color var(--transition-fast);
}
.grade-input-box:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary-glow);
}
.grade-badge-pass {
  background: rgba(16, 185, 129, 0.15);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
}
.grade-badge-fail {
  background: rgba(239, 68, 68, 0.15);
  color: #EF4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Timetable Grid */
.timetable-wrapper {
  overflow-x: auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}
.timetable-grid-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
}
.timetable-grid-table th {
  background: rgba(255, 255, 255, 0.05);
  padding: 12px;
  border: 1px solid var(--color-border);
  color: var(--color-silver);
  font-weight: 700;
  font-size: 0.9rem;
}
.timetable-grid-table td {
  border: 1px solid var(--color-border);
  padding: 8px;
  vertical-align: top;
  min-width: 130px;
  height: 90px;
}
.timetable-grid-table td.period-label-col {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 700;
  color: var(--color-text-secondary);
  width: 90px;
  min-width: 90px;
  vertical-align: middle;
}
.timetable-slot-card {
  height: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 8px 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-fast);
}
.timetable-slot-card:hover {
  background: rgba(200, 16, 46, 0.1);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.timetable-slot-card.filled {
  background: rgba(20, 26, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top: 3px solid var(--color-primary);
}
.slot-subject-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}
.slot-teacher-name {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}
.slot-room-badge {
  font-size: 0.68rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--color-silver-muted);
}
.slot-empty-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* Classroom Monitor Dashboard Cards */
.monitor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.monitor-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.monitor-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-glow);
}
.monitor-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.monitor-stage-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
}
.monitor-homeroom {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
}
.monitor-status-pill {
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
}
.monitor-metrics-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}
.monitor-metric-box {
  background: rgba(10, 12, 19, 0.6);
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.monitor-metric-lbl {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}
.monitor-metric-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin-top: 2px;
}

/* Responsive */
@media (max-width: 992px) {
  .app-sidebar {
    transform: translateX(100%);
  }
  .app-sidebar.open {
    transform: translateX(0);
  }
  .main-wrapper {
    margin-right: 0;
    padding: 20px;
  }
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

/* Print Stylesheet */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .app-sidebar, .top-bar, .top-bar-actions, .filter-toolbar, .sub-tabs, .btn, .modal-close {
    display: none !important;
  }
  .main-wrapper {
    margin: 0 !important;
    padding: 0 !important;
  }
  .modal-overlay {
    position: static !important;
    background: transparent !important;
    padding: 0 !important;
    display: block !important;
  }
  .modal-box {
    box-shadow: none !important;
    max-width: 100% !important;
    padding: 0 !important;
    border: none !important;
    background: #fff !important;
    color: #000 !important;
  }
  .timetable-wrapper, .panel-card, .data-table {
    border: 1px solid #ccc !important;
    background: #fff !important;
    color: #000 !important;
    box-shadow: none !important;
  }
  .timetable-grid-table th, .timetable-grid-table td {
    border: 1px solid #999 !important;
    color: #000 !important;
  }
  .timetable-slot-card {
    border: none !important;
    background: #f8f9fa !important;
    color: #000 !important;
  }
  .slot-subject-title, .slot-teacher-name {
    color: #000 !important;
  }
  #printable-id-card {
    border: 1px solid #000 !important;
    background: #fff !important;
    color: #000 !important;
    box-shadow: none !important;
    width: 85mm !important;
    height: 54mm !important;
    page-break-inside: avoid;
  }

  body.printing-desk-cards .main-wrapper,
  body.printing-desk-cards .modal-overlay,
  body.printing-hall-roster .main-wrapper,
  body.printing-hall-roster .modal-overlay {
    display: none !important;
  }

  body.printing-desk-cards #printable-desk-cards,
  body.printing-hall-roster #printable-hall-roster {
    display: block !important;
  }
}

/* Screen styles for print containers */
.print-only-container {
  display: none;
}

/* Exam Seating Desk Cards Layout */
.desk-cards-a4-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-rows: 92mm;
  gap: 8mm;
  padding: 8mm;
  background: #fff;
  color: #000;
  box-sizing: border-box;
}

.desk-card-item {
  border: 2px dashed #334155;
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  page-break-inside: avoid;
  background: #fff;
  position: relative;
}

.card-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #0f172a;
  padding-bottom: 6px;
}

.school-brand-mini strong {
  display: block;
  font-size: 0.95rem;
  color: #0f172a;
}

.school-brand-mini span {
  font-size: 0.72rem;
  color: #64748b;
}

.stamp-box {
  border: 1px dashed #94a3b8;
  border-radius: 4px;
  font-size: 0.65rem;
  color: #94a3b8;
  padding: 4px 8px;
  text-align: center;
}

.card-body-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 8px 0;
}

.card-photo-box {
  width: 48px;
  height: 58px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #94a3b8;
  background: #f8fafc;
}

.card-details-box {
  flex: 1;
}

.card-details-box .student-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: #0f172a;
}

.card-details-box .student-meta {
  font-size: 0.8rem;
  color: #334155;
  margin-top: 2px;
}

.card-details-box .exam-title-badge {
  display: inline-block;
  background: #e2e8f0;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #1e293b;
  margin-top: 4px;
}

.card-seating-highlight {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 6px;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 6px;
  text-align: center;
}

.highlight-item .hl-lbl {
  display: block;
  font-size: 0.68rem;
  color: #475569;
}

.highlight-item .hl-val {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
}

.highlight-item .hl-val.seat-no {
  font-size: 1.25rem;
  color: #c8102e;
}

.card-footer-barcode {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #e2e8f0;
  padding-top: 4px;
  margin-top: 4px;
}

.barcode-fake {
  font-family: 'Courier New', monospace;
  font-weight: 800;
  letter-spacing: 2px;
  font-size: 0.85rem;
}

.card-notice {
  font-size: 0.62rem;
  color: #64748b;
  text-align: left;
}

/* Document Archiving Hover Styles */
.doc-card {
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.doc-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.25) !important;
}





/* ===== Printable Receipt (Official A4) ===== */
@media print {
  body.printing-receipt * { visibility: hidden; }
  body.printing-receipt #receipt-modal,
  body.printing-receipt #receipt-modal * { visibility: visible; }
  body.printing-receipt #receipt-modal {
    position: fixed; inset: 0; display: block !important;
    background: #fff !important; z-index: 9999; overflow: visible;
  }
  body.printing-receipt #receipt-modal .modal-box {
    position: absolute; top: 20px; right: 20px; left: 20px;
    max-width: 720px; margin: 0 auto; box-shadow: none !important;
    border: 2px solid #1a1a2e !important;
  }
  body.printing-receipt .modal-close,
  body.printing-receipt #receipt-modal .btn { display: none !important; }
}

/* Pay student picker */
#pay-student-options div { transition: background 0.15s; }