/* ============================================
   SchoolTrack Pro — Design System
   Premium Dark Theme + Glassmorphism
   ============================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Cairo:wght@400;600;700&display=swap');

/* ── CSS Custom Properties ── */
:root {
  /* Primary Colors */
  --primary: #6C5CE7;
  --primary-light: #a29bfe;
  --primary-dark: #5341d6;
  --primary-glow: rgba(108, 92, 231, 0.4);

  /* Secondary Colors */
  --secondary: #00D2FF;
  --secondary-light: #74e8ff;
  --secondary-dark: #00a8cc;
  --secondary-glow: rgba(0, 210, 255, 0.3);

  /* Accent Colors */
  --accent-red: #FF6B6B;
  --accent-red-glow: rgba(255, 107, 107, 0.3);
  --accent-green: #00E676;
  --accent-green-glow: rgba(0, 230, 118, 0.3);
  --accent-amber: #FFD93D;
  --accent-amber-glow: rgba(255, 217, 61, 0.3);
  --accent-orange: #FF9F43;
  --accent-pink: #FD79A8;

  /* Background Colors */
  --bg-deep: #0A0E1A;
  --bg-primary: #0F1322;
  --bg-surface: #141927;
  --bg-card: #1A1F35;
  --bg-elevated: #1E2440;
  --bg-hover: #252B45;

  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Text Colors */
  --text-primary: #FFFFFF;
  --text-secondary: #8B95A5;
  --text-muted: #5A6275;
  --text-accent: var(--secondary);

  /* Borders */
  --border-color: rgba(255, 255, 255, 0.06);
  --border-color-hover: rgba(255, 255, 255, 0.12);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 50%;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-arabic: 'Cairo', 'Inter', sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-glow-primary: 0 0 20px var(--primary-glow);
  --shadow-glow-secondary: 0 0 20px var(--secondary-glow);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed: 80px;
  --header-height: 70px;

  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* ── Reset & Base ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* RTL Support */
[dir="rtl"] body {
  font-family: var(--font-arabic);
}

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

a:hover {
  color: var(--secondary-light);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: 3px;
}

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

/* ── Animated Background ── */
.bg-animated {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: var(--bg-deep);
  overflow: hidden;
}

.bg-animated::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 20% 50%, var(--primary-glow) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, var(--secondary-glow) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(253, 121, 168, 0.15) 0%, transparent 50%);
  animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(2%, -2%) rotate(1deg); }
  50% { transform: translate(-1%, 2%) rotate(-1deg); }
  75% { transform: translate(1%, -1%) rotate(0.5deg); }
}

/* ── Glass Card ── */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.glass-card-static {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--primary-glow);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-dark), var(--secondary));
  color: white;
  box-shadow: 0 4px 15px var(--secondary-glow);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--secondary-glow);
}

.btn-ghost {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.btn-danger {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
  box-shadow: 0 4px 15px var(--accent-red-glow);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--text-base);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ── Input Fields ── */
.form-group {
  position: relative;
  margin-bottom: var(--space-lg);
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: var(--bg-card);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

/* Floating Label */
.form-floating {
  position: relative;
}

.form-floating .form-input {
  padding-top: 20px;
  padding-bottom: 8px;
}

.form-floating .form-label {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  margin: 0;
  transition: all var(--transition-fast);
  pointer-events: none;
  color: var(--text-muted);
}

.form-floating .form-input:focus ~ .form-label,
.form-floating .form-input:not(:placeholder-shown) ~ .form-label {
  top: 10px;
  font-size: var(--text-xs);
  color: var(--primary-light);
}

/* ── Stat Cards ── */
.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card.purple::before { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.stat-card.cyan::before { background: linear-gradient(90deg, var(--secondary-dark), var(--secondary)); }
.stat-card.green::before { background: linear-gradient(90deg, #00b894, var(--accent-green)); }
.stat-card.amber::before { background: linear-gradient(90deg, var(--accent-orange), var(--accent-amber)); }
.stat-card.red::before { background: linear-gradient(90deg, #e74c3c, var(--accent-red)); }
.stat-card.pink::before { background: linear-gradient(90deg, #e84393, var(--accent-pink)); }

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-xl);
}

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.stat-card.purple .stat-icon { background: var(--primary-glow); color: var(--primary-light); }
.stat-card.cyan .stat-icon { background: var(--secondary-glow); color: var(--secondary); }
.stat-card.green .stat-icon { background: var(--accent-green-glow); color: var(--accent-green); }
.stat-card.amber .stat-icon { background: var(--accent-amber-glow); color: var(--accent-amber); }
.stat-card.red .stat-icon { background: var(--accent-red-glow); color: var(--accent-red); }
.stat-card.pink .stat-icon { background: rgba(253,121,168,0.2); color: var(--accent-pink); }

.stat-card .stat-value {
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-card .stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-card .stat-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  font-weight: 600;
  margin-top: var(--space-sm);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.stat-card .stat-change.up {
  color: var(--accent-green);
  background: var(--accent-green-glow);
}

.stat-card .stat-change.down {
  color: var(--accent-red);
  background: var(--accent-red-glow);
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: rgba(15, 19, 34, 0.95);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sticky);
  transition: width var(--transition-slow);
  overflow: hidden;
}

.sidebar-header {
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  border-bottom: 1px solid var(--border-color);
  min-height: var(--header-height);
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
}

.sidebar-brand h1 {
  font-size: var(--text-base);
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.sidebar-brand span {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-md);
  overflow-y: auto;
}

.nav-section {
  margin-bottom: var(--space-lg);
}

.nav-section-title {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 11px var(--space-md);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  margin-bottom: 2px;
}

.nav-item:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.15), rgba(0, 210, 255, 0.08));
  color: var(--text-primary);
  border: 1px solid rgba(108, 92, 231, 0.2);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.nav-item i {
  width: 20px;
  text-align: center;
  font-size: 1rem;
}

.nav-badge {
  margin-left: auto;
  background: var(--accent-red);
  color: white;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--border-color);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.sidebar-user:hover {
  background: var(--glass-bg-hover);
}

.sidebar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--accent-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-slow);
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  z-index: var(--z-sticky);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-title {
  font-size: var(--text-xl);
  font-weight: 700;
}

.header-subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-search {
  position: relative;
}

.header-search input {
  width: 260px;
  padding: 10px 16px 10px 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  transition: all var(--transition-base);
  outline: none;
}

.header-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  width: 320px;
}

.header-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.header-icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.header-icon-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
}

.header-icon-btn .badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: var(--accent-red);
  border-radius: var(--radius-full);
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  border: 2px solid var(--bg-deep);
}

/* ── Page Content ── */
.page-content {
  padding: var(--space-xl);
}

/* ── Grid System ── */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* ── Table ── */
.data-table-wrapper {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.data-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.data-table-title {
  font-size: var(--text-lg);
  font-weight: 700;
}

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

.data-table th {
  text-align: left;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
}

.data-table td {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

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

.data-table tr:hover td {
  background: var(--glass-bg-hover);
}

.data-table .table-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-xs);
  margin-right: var(--space-sm);
  vertical-align: middle;
}

/* ── Badges / Tags ── */
.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
}

.badge-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.badge-active { background: var(--accent-green-glow); color: var(--accent-green); }
.badge-active::before { background: var(--accent-green); }

.badge-inactive { background: rgba(139, 149, 165, 0.2); color: var(--text-muted); }
.badge-inactive::before { background: var(--text-muted); }

.badge-warning { background: var(--accent-amber-glow); color: var(--accent-amber); }
.badge-warning::before { background: var(--accent-amber); }

.badge-danger { background: var(--accent-red-glow); color: var(--accent-red); }
.badge-danger::before { background: var(--accent-red); }

.badge-info { background: var(--secondary-glow); color: var(--secondary); }
.badge-info::before { background: var(--secondary); }

/* ── Map Container ── */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.map-container-full {
  width: 100%;
  height: calc(100vh - var(--header-height) - var(--space-xl) * 2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

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

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade { animation: fadeIn 0.5s ease-out; }
.animate-slide-up { animation: slideUp 0.5s ease-out; }
.animate-slide-left { animation: slideInLeft 0.5s ease-out; }
.animate-scale { animation: scaleIn 0.4s ease-out; }

/* Staggered animation delays */
.delay-1 { animation-delay: 0.1s; animation-fill-mode: backwards; }
.delay-2 { animation-delay: 0.2s; animation-fill-mode: backwards; }
.delay-3 { animation-delay: 0.3s; animation-fill-mode: backwards; }
.delay-4 { animation-delay: 0.4s; animation-fill-mode: backwards; }
.delay-5 { animation-delay: 0.5s; animation-fill-mode: backwards; }

/* ── Toast Notifications ── */
.toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: slideInRight 0.3s ease-out;
  min-width: 300px;
  box-shadow: var(--shadow-lg);
}

.toast-success { background: rgba(0, 230, 118, 0.15); border-color: rgba(0, 230, 118, 0.3); }
.toast-error { background: rgba(255, 107, 107, 0.15); border-color: rgba(255, 107, 107, 0.3); }
.toast-info { background: rgba(0, 210, 255, 0.15); border-color: rgba(0, 210, 255, 0.3); }
.toast-warning { background: rgba(255, 217, 61, 0.15); border-color: rgba(255, 217, 61, 0.3); }

/* ── Language Switcher ── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 3px;
  border: 1px solid var(--border-color);
}

.lang-option {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-muted);
  border: none;
  background: transparent;
}

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

.lang-option.active {
  background: var(--primary);
  color: white;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

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

.modal {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 560px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  animation: scaleIn 0.3s ease-out;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: 700;
}

/* ── Responsive ── */
@media (max-width: 1400px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

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

  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .page-content {
    padding: var(--space-md);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .header {
    padding: 0 var(--space-md);
  }

  .header-search input {
    width: 160px;
  }

  .header-search input:focus {
    width: 200px;
  }
}

/* ── Utility Classes ── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.font-bold { font-weight: 700; }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.w-full { width: 100%; }
.hidden { display: none; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }