/* ============================================
   SYSTIMATE (BLUEBOOK) - MODERN DESIGN SYSTEM
   Professional, Clean, Modern UI
   ============================================ */

/* === IMPORTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* === DESIGN TOKENS === */
:root {
  /* Typography */
  --font-sans: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  
  /* Neutral Colors */
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  --color-gray-950: #030712;
  
  /* Border Radius */
  --radius-xs: 0.375rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
  
  /* Light Theme Tokens (Global - Flat & Calm Luxury) */
  /* Colors - Light Mode */
  --color-primary: #818cf8;
  --color-primary-light: #a5b4fc;
  --color-primary-dark: #6366f1;
  --color-primary-50: #eef2ff;
  --color-primary-100: #e0e7ff;
  --color-primary-rgb: 129, 140, 248;

  --color-secondary: #475569;
  --color-secondary-light: #64748b;
  --color-secondary-dark: #334155;
  --color-secondary-rgb: 71, 85, 105;

  --color-accent: #d97706;
  --color-accent-light: #f59e0b;
  --color-accent-dark: #b45309;

  --color-success: #059669;
  --color-success-light: #10b981;
  --color-success-dark: #047857;

  --color-danger: #dc2626;
  --color-danger-light: #ef4444;
  --color-danger-dark: #b91c1c;

  --color-warning: #d97706;
  --color-info: #818cf8;

  /* Surface Colors - Light (Relaxing Slate & Pure White) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-overlay: rgba(15, 23, 42, 0.6);

  /* Text Colors - Light */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-tertiary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  /* Border Colors (Crisp Flat Fine-Line Borders) */
  --border-light: #f1f5f9;
  --border-default: #e2e8f0;
  --border-strong: #cbd5e1;

  /* Shadows - Minimal & Flat */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 6px 12px rgba(0, 0, 0, 0.08);
  --shadow-2xl: 0 8px 16px rgba(0, 0, 0, 0.1);
  --shadow-inner: inset 0 1px 2px rgba(0, 0, 0, 0.05);

  /* Flat Surfaces Replacing Glassmorphism */
  --glass-bg: #ffffff;
  --glass-border: #e2e8f0;
  --glass-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* === BASE RESET & GLOBAL === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.25rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.125rem); }

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}
/* === LAYOUT === */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

@media (max-width: 768px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  padding: var(--space-8) 0;
}

/* === NAVBAR - MODERN GLASSMORPHISM === */
#mainNav {
  width: min(1300px, calc(100% - 1rem));
  margin: 0.5rem auto 0 !important;
  padding: 0.25rem 0.25rem !important;
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-full) !important;
  box-shadow: var(--glass-shadow) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  transition: all var(--transition-slow) !important;
}

#mainNav.scrolled {
  background: var(--bg-elevated) !important;
  box-shadow: var(--shadow-lg) !important;
}

.navbar-brand img {
  height: 44px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  transition: transform var(--transition-base);
}

.navbar-brand:hover img {
  transform: scale(1.05);
}

.nav-link {
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.625rem 1rem !important;
  border-radius: var(--radius-full);
  color: var(--text-secondary) !important;
  transition: all var(--transition-fast) !important;
  position: relative;
}

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

/* Theme Switcher - Pill Design */
.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.375rem;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
}

.theme-icon {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.theme-icon.active {
  background: var(--color-primary);
  color: white !important;
  box-shadow: var(--shadow-sm);
}

/* Language Switcher */
.language-switcher {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.language-switcher:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Dropdown Menu */
.dropdown-menu {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  margin-top: var(--space-2);
  min-width: 220px;
}

.dropdown-item {
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.dropdown-item:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.dropdown-divider {
  margin: var(--space-2) 0;
  border-top: 1px solid var(--border-default);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: none;
  box-shadow: none;
}

.btn:active {
  transform: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white !important;
  border: 1px solid var(--color-primary-dark);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: white !important;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary) !important;
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  background: var(--border-strong);
  color: var(--text-primary) !important;
}

.btn-outline-primary {
  background: transparent;
  color: var(--color-primary) !important;
  border: 1.5px solid var(--color-primary);
}

.btn-outline-primary:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-dark) !important;
}

.btn-success {
  background: var(--color-success);
  color: white !important;
  border: 1px solid var(--color-success-dark);
}

.btn-success:hover {
  background: var(--color-success-dark);
}

.btn-danger {
  background: var(--color-danger);
  color: white !important;
  border: 1px solid var(--color-danger-dark);
}

.btn-danger:hover {
  background: var(--color-danger-dark);
}

.btn-warning {
  background: var(--color-warning);
  color: white !important;
  border: 1px solid var(--color-accent-dark);
}

.btn-warning:hover {
  background: var(--color-accent-dark);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

/* === CARDS === */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: none;
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.card:hover {
  box-shadow: none;
  transform: none;
  border-color: var(--border-strong);
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--border-default);
  padding: var(--space-5) var(--space-6);
  font-weight: 600;
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-default);
  padding: var(--space-5) var(--space-6);
}

/* Feature Cards */
.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  height: 100%;
  transition: border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  display: none;
}

.feature-card:hover {
  box-shadow: none;
  transform: none;
  border-color: var(--color-primary);
}

.feature-card .icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: background-color var(--transition-base);
}

.feature-card:hover .icon-wrapper {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: none;
}

.feature-card .icon-wrapper i {
  font-size: 1.75rem;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.feature-card:hover .icon-wrapper i {
  color: white;
}

.feature-card h5 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin: 0;
}

/* === FORMS === */
body:not(.auth-page) .form-control:not(.auth-form *):not(.auth-card *):not(.auth-redesign *),
body:not(.auth-page) .form-select:not(.auth-form *):not(.auth-card *):not(.auth-redesign *) {
  width: 100%;
  min-height: 2.875rem;
  padding: 0.65rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 450;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary, #ffffff);
  border: 1.5px solid var(--border-default, #cbd5e1);
  border-radius: var(--radius-lg, 0.75rem);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

body:not(.auth-page) .form-control:not(.auth-form *):not(.auth-card *):not(.auth-redesign *):hover,
body:not(.auth-page) .form-select:not(.auth-form *):not(.auth-card *):not(.auth-redesign *):hover {
  border-color: var(--border-hover, #94a3b8);
}

body:not(.auth-page) .form-control:not(.auth-form *):not(.auth-card *):not(.auth-redesign *):focus,
body:not(.auth-page) .form-select:not(.auth-form *):not(.auth-card *):not(.auth-redesign *):focus {
  outline: none;
  border-color: var(--color-primary, #6366f1);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
  background-color: var(--bg-primary, #ffffff);
}

body:not(.auth-page) .form-control:not(.auth-form *):not(.auth-card *):not(.auth-redesign *)::placeholder {
  color: var(--text-muted, #94a3b8);
  font-size: 0.9375rem;
}

body:not(.auth-page) .form-label:not(.auth-form *):not(.auth-card *):not(.auth-redesign *) {
  display: inline-block;
  margin-bottom: var(--space-2, 0.375rem);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

body:not(.auth-page) .form-text:not(.auth-form *):not(.auth-card *):not(.auth-redesign *) {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

body:not(.auth-page) .input-group-text:not(.auth-form *):not(.auth-card *):not(.auth-redesign *) {
  display: flex;
  align-items: center;
  padding: 0.65rem 1rem;
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-lg, 0.75rem);
}

/* === TABLES === */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 0;
}

.table thead th {
  background: var(--bg-tertiary);
  padding: var(--space-4) var(--space-5);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-default);
}

.table tbody td {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
  background: var(--color-primary-50);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-primary {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-accent-dark);
}

/* === ALERTS === */
.alert {
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  border: none;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert-success {
  background: var(--color-primary-50);
  color: var(--color-success-dark);
  border-left: 4px solid var(--color-success);
}

.alert-danger {
  background: #fef2f2;
  color: var(--color-danger-dark);
  border-left: 4px solid var(--color-danger);
}

.alert-warning {
  background: #fffbeb;
  color: var(--color-accent-dark);
  border-left: 4px solid var(--color-warning);
}

.alert-info {
  background: var(--color-primary-50);
  color: var(--color-info);
  border-left: 4px solid var(--color-info);
}

/* === MODALS === */
.modal-content {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-default);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--border-default);
  background: var(--bg-secondary);
}

.btn-close {
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.btn-close:hover {
  opacity: 1;
}

/* === PROGRESS BARS === */
.progress {
  height: 0.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  border-radius: var(--radius-full);
  background: var(--color-primary);
  transition: width var(--transition-slower);
}

/* === PAGINATION === */
.pagination {
  display: flex;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--space-3);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.page-link:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.page-item.active .page-link {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  box-shadow: none;
}

/* === TABS === */
.nav-tabs {
  border-bottom: 2px solid var(--border-default);
  gap: var(--space-1);
}

.nav-tabs .nav-link {
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-tertiary);
  background: transparent;
}

.nav-tabs .nav-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary-light);
  background: transparent;
}

.nav-tabs .nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: transparent;
}

/* === ACCORDION === */
.accordion-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
}

.accordion-button {
  padding: var(--space-5) var(--space-6);
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-elevated);
  box-shadow: none;
}

.accordion-button:not(.collapsed) {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.accordion-button:focus {
  box-shadow: none;
  border-color: var(--color-primary);
}

/* === TOASTS === */
.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.toast-success {
  background: var(--color-success);
  color: white;
}

.toast-danger {
  background: var(--color-danger);
  color: white;
}

.toast-warning {
  background: var(--color-warning);
  color: white;
}

/* === HERO SECTION === */
.hero-background {
  min-height: 100vh;
  background-image: url("/static/imgs/hero/b16.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
}

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 2;
  padding: var(--space-20) 0;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: white;
  margin-bottom: var(--space-6);
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: rgba(255, 255, 255, 0.9);
  max-width: 700px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

/* === STATS SECTION === */
.stats-section {
  padding: var(--space-16) 0;
  background: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  display: none;
}

.stat-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: border-color var(--transition-slow);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: none;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: white;
  line-height: 1;
  margin-bottom: var(--space-3);
}

.stat-label {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

/* === TESTIMONIALS === */
.testimonials-section {
  padding: var(--space-20) 0;
  background: var(--bg-secondary);
}

.testimonial-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  height: 100%;
  transition: border-color var(--transition-slow);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  font-size: 5rem;
  font-family: Georgia, serif;
  color: var(--color-primary-100);
  line-height: 1;
}

.testimonial-card:hover {
  box-shadow: none;
  transform: none;
  border-color: var(--color-primary);
}

.testimonial-text {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-author img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--border-default);
}

.testimonial-author h6 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.testimonial-author small {
  color: var(--text-tertiary);
  font-size: 0.8125rem;
}

.stars {
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

/* === HOW IT WORKS === */
.how-it-works-section {
  padding: var(--space-20) 0;
  background: var(--bg-primary);
}

.step-item {
  text-align: center;
  padding: var(--space-8);
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 auto var(--space-6);
  box-shadow: none;
  transition: background-color var(--transition-base);
}

.step-item:hover .step-number {
  transform: none;
  background: var(--color-primary-dark);
}

.step-item h5 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.step-item p {
  color: var(--text-tertiary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* === VIDEO SECTION === */
.video-section {
  padding: var(--space-20) 0;
  background: var(--bg-secondary);
}

.video-wrapper {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-default);
  transition: border-color var(--transition-slow);
}

.video-wrapper:hover {
  transform: none;
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* === FOOTER === */
.main-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-default);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-block;
  margin-bottom: var(--space-4);
}

.text-gradient {
  color: var(--color-primary) !important;
  background: none !important;
  -webkit-text-fill-color: initial !important;
}

.footer-description {
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links ul li {
  margin-bottom: var(--space-3);
}

.footer-links ul li a {
  color: var(--text-tertiary);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  color: var(--text-tertiary);
}

.contact-item i {
  color: var(--color-primary);
  font-size: 1.125rem;
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.social-icon:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: none;
  box-shadow: none;
}

.footer-bottom {
  border-top: 1px solid var(--border-default);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* === WHATSAPP BUTTON === */
.whatsapp {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: #10B981;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition-base);
  z-index: var(--z-fixed);
}

.whatsapp:hover {
  transform: none;
  background: #059669;
  box-shadow: var(--shadow-lg);
}

/* === SECTION HEADERS === */
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-tertiary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
  line-height: 1.7;
}

/* === AUTH PAGES === */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  padding: var(--space-8);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.auth-header {
  background: var(--text-primary);
  padding: var(--space-8);
  text-align: center;
}

.auth-logo {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-full);
  background: white;
  padding: var(--space-3);
  box-shadow: none;
}

.auth-title {
  color: white !important;
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.auth-subtitle {
  color: var(--text-muted) !important;
  font-size: 0.875rem;
  margin: 0;
}

.auth-body {
  padding: var(--space-8);
}

.auth-footer {
  text-align: center;
  padding: var(--space-5) var(--space-8) var(--space-6);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* === LOADING & SKELETON === */
.skeleton {
  background: var(--bg-tertiary);
  animation: pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--border-default);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* === ANIMATIONS === */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fadeIn { animation: fadeIn 0.3s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.3s ease-out; }
.animate-slideIn { animation: slideIn 0.3s ease-out; }
.animate-scaleIn { animation: scaleIn 0.3s ease-out; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }

/* === UTILITY CLASSES === */
.glass {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
}

.hover-lift {
  transition: border-color var(--transition-base);
}

.hover-lift:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--color-primary);
}

/* === RTL SUPPORT === */
[dir="rtl"] {
  text-align: right;
}

[dir="rtl"] .footer-links ul li a:hover {
  padding-left: 0;
  padding-right: 0;
}

[dir="rtl"] .whatsapp {
  left: var(--space-6);
  right: auto;
}

[dir="rtl"] .contact-item {
  flex-direction: row-reverse;
}

/* === RESPONSIVE === */
@media (max-width: 991.98px) {
  #mainNav {
    width: calc(100% - 1.5rem);
    border-radius: var(--radius-lg);
  }
  
  .navbar-collapse {
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-top: var(--space-3);
    box-shadow: var(--shadow-md);
  }
  
  .navbar-nav {
    gap: var(--space-1);
  }
  
  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }
}

@media (max-width: 767.98px) {
  .hero-section {
    padding: var(--space-16) 0;
  }
  
  .stats-section,
  .testimonials-section,
  .how-it-works-section,
  .video-section {
    padding: var(--space-12) 0;
  }
  
  .feature-card,
  .testimonial-card {
    padding: var(--space-6);
  }
  
  .whatsapp {
    bottom: var(--space-4);
    right: var(--space-4);
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }
  
  [dir="rtl"] .whatsapp {
    left: var(--space-4);
  }
}

/* === PRINT STYLES === */
@media print {
  .no-print { display: none !important; }
  .card { box-shadow: none; border: 1px solid #cbd5e1; }
  body { background: white; }
}

/* ============================================
   CRITICAL OVERRIDES - Fix Conflicts
   ============================================ */

/* === CONTENT SPACING FOR NAVBAR === */
.content-wrapper {
  padding-top: 0;
}

.content-wrapper.home-content {
  padding-top: 0;
}

.content-wrapper.page-content {
  padding-top: 5.5rem !important;
  padding-bottom: 3rem !important;
}

@media (min-width: 1024px) {
  .content-wrapper.page-content {
    padding-top: 6rem !important;
  }
}

/* === OVERRIDE MAIN.CSS CONFLICTS === */
body a,
body a.nav-link,
body a.dropdown-item,
body .btn {
  font-size: inherit;
}

body .nav-link {
  font-size: 0.9375rem;
}

body .btn {
  font-size: 0.9375rem;
}

body .btn-sm {
  font-size: 0.8125rem;
}

body .btn-lg {
  font-size: 1.0625rem;
}

body div {
  color: inherit;
}

body .hero-section {
  padding-top: var(--space-20);
}

body .feature-card {
  padding: var(--space-8);
  border: 1px solid var(--border-default);
}

body .feature-card .icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-primary-50);
}

body .feature-card .icon-wrapper i {
  font-size: 1.5rem;
  color: var(--color-primary);
}

body .step-number {
  background: var(--color-primary);
}

body .how-it-works-section {
  background: var(--bg-primary);
}

body .stats-section {
  background: var(--text-primary);
}

/* Override main.css testimonial-card */
body .testimonial-card {
  border: 1px solid var(--border-default);
  padding: var(--space-8);
}

/* Override main.css footer */
body .main-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-default);
  color: inherit;
}

body .main-footer::before {
  display: none;
}

/* Override main.css footer links */
body .footer-links ul li a {
  color: var(--text-tertiary);
}

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

/* Override main.css social-icon */
body .social-icon {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: none;
}

body .social-icon:hover {
  background: var(--color-primary);
  color: white;
}

/* Override main.css footer-bottom */
body .footer-bottom {
  color: var(--text-tertiary);
  border-top: 1px solid var(--border-default);
}

/* === MDB SPECIFIC FIXES === */

/* Fix MDB form-outline floating labels */
.form-outline .form-control {
  background: var(--bg-primary);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  min-height: 3rem;
  padding: 0.75rem 1rem;
}

.form-outline .form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb), 0.1);
}

.form-outline .form-label {
  color: var(--text-muted);
  padding: 0 0.25rem;
}

.form-outline .form-control:focus ~ .form-label,
.form-outline .form-control:not(:placeholder-shown) ~ .form-label {
  color: var(--color-primary);
  background: var(--bg-primary);
}

/* Fix MDB active tab */
.nav-tabs .nav-link.active {
  color: var(--color-primary) !important;
  border-bottom-color: var(--color-primary) !important;
}

/* Fix MDB dropdown */
.dropdown-menu {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border-default) !important;
}

.dropdown-item {
  color: var(--text-secondary) !important;
}

.dropdown-item:hover {
  background: var(--color-primary-50) !important;
  color: var(--color-primary) !important;
}

/* Fix MDB modal */
.modal-content {
  background: var(--bg-elevated) !important;
}

.modal-header {
  border-bottom: 1px solid var(--border-default) !important;
}

.modal-footer {
  border-top: 1px solid var(--border-default) !important;
  background: var(--bg-secondary) !important;
}



/* Fix MDB table */
.table {
  color: var(--text-primary) !important;
}

.table thead th {
  color: var(--text-tertiary) !important;
}

.table tbody td {
  color: var(--text-secondary) !important;
}

/* === UTILITY OVERRIDES === */

/* Ensure bg-light works with dark mode */
body .bg-light {
  background: var(--bg-secondary) !important;
}
/* Fix text-muted */
body .text-muted {
  color: var(--text-tertiary) !important;
}

/* Fix text-primary */
body .text-primary {
  color: var(--color-primary) !important;
}

/* Fix border classes */
body .border {
  border-color: var(--border-default) !important;
}

body .border-bottom {
  border-color: var(--border-default) !important;
}

body .border-top {
  border-color: var(--border-default) !important;
}

/* === SUBJECTS PAGE SPECIFIC FIXES === */

/* Fix subject card from main.css */
.subject-main-card {
  border: 1px solid var(--border-default) !important;
  border-radius: var(--radius-xl) !important;
  background: var(--bg-elevated) !important;
  box-shadow: var(--shadow-sm) !important;
}

.subject-main-card:hover {
  box-shadow: var(--shadow-xl) !important;
  border-color: var(--color-primary-light) !important;
}

/* Fix subject avatar */
.subject-avatar-sm {
  border: 2px solid var(--border-default);
}

/* Fix notification badge */
.subject-notification-badge {
  background: var(--color-danger) !important;
  color: white !important;
}

/* === FORM FIXES === */

/* Ensure all inputs use design system */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
input[type="url"],
input[type="tel"],
textarea,
select {
  background: var(--bg-primary) !important;
  border: 1.5px solid var(--border-default) !important;
  color: var(--text-primary) !important;
  border-radius: var(--radius-md) !important;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb), 0.1) !important;
  outline: none !important;
}

/* === CARD FIXES === */

/* Ensure card colors */
.card {
  background: var(--bg-elevated) !important;
  border-color: var(--border-default) !important;
}

.card-header {
  background: transparent !important;
  border-color: var(--border-default) !important;
  color: var(--text-primary) !important;
}

.card-footer {
  background: var(--bg-secondary) !important;
  border-color: var(--border-default) !important;
}

/* === LIST GROUP FIXES === */
.list-group-item {
  background: transparent !important;
  border-color: var(--border-default) !important;
  color: var(--text-primary) !important;
}

/* === ACCORDION FIXES === */
.accordion-button {
  background: var(--bg-elevated) !important;
  color: var(--text-primary) !important;
}

.accordion-button:not(.collapsed) {
  background: var(--color-primary-50) !important;
  color: var(--color-primary) !important;
}

.accordion-item {
  background: var(--bg-elevated) !important;
  border-color: var(--border-default) !important;
}

/* === SCROLL FIX === */
html {
  scroll-padding-top: 100px;
}

/* ============================================
   BACKWARDS COMPATIBILITY - Old Variable Aliases
   Maps old modern-flat-theme variables to new design system
   ============================================ */

:root {
  --app-primary: var(--color-primary);
  --app-primary-strong: var(--color-primary-dark);
  --app-primary-soft: var(--color-primary-50);
  --app-success: var(--color-success);
  --app-danger: var(--color-danger);
  --app-accent: var(--color-accent);
  --app-text: var(--text-primary);
  --app-heading: var(--text-primary);
  --app-text-muted: var(--text-muted);
  --app-surface: var(--bg-elevated);
  --app-surface-muted: var(--bg-secondary);
  --app-surface-strong: var(--bg-tertiary);
  --app-border: var(--border-default);
  --app-border-strong: var(--border-default);
  --app-bg: var(--bg-primary);
  --app-bg-soft: var(--bg-secondary);
  --app-shadow-xs: var(--shadow-xs);
  --app-shadow-sm: var(--shadow-sm);
  --app-shadow-md: var(--shadow-md);
  --app-radius-sm: var(--radius-sm);
  --app-radius-md: var(--radius-md);
  --app-radius-lg: var(--radius-lg);
  --app-font-latin: var(--font-sans);
  --app-font-arabic: var(--font-sans);
}