/* ============================================================
   AL ADAB CBT & SPMB SYSTEM — MAIN DESIGN SYSTEM
   Modern Islamic Education Dashboard
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Amiri:ital,wght@0,400;0,700;1,400&family=Poppins:wght@400;500;600;700&display=swap');

/* ============================================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================================ */
:root {
  /* Primary Colors */
  --primary-50:  #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #1a56db;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  --primary-950: #172554;

  /* Gold Accent */
  --gold-50:  #fffbeb;
  --gold-100: #fef3c7;
  --gold-200: #fde68a;
  --gold-300: #fcd34d;
  --gold-400: #fbbf24;
  --gold-500: #d4a017;
  --gold-600: #b7860e;
  --gold-700: #92660a;

  /* Neutral Colors */
  --gray-50:  #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Semantic Colors */
  --success:      #10b981;
  --success-bg:   #d1fae5;
  --warning:      #f59e0b;
  --warning-bg:   #fef3c7;
  --danger:       #ef4444;
  --danger-bg:    #fee2e2;
  --info:         #06b6d4;
  --info-bg:      #cffafe;

  /* Backgrounds */
  --bg-app:       #eef2f7;
  --bg-surface:   #ffffff;
  --bg-sidebar:   linear-gradient(180deg, #1e3a8a 0%, #1a56db 50%, #1d4ed8 100%);
  --bg-pattern:   url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");

  /* Typography */
  --font-primary: 'Inter', 'Poppins', sans-serif;
  --font-arabic:  'Amiri', serif;

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

  /* Border Radius */
  --radius-sm:    6px;
  --radius-md:    10px;
  --radius-lg:    14px;
  --radius-xl:    20px;
  --radius-2xl:   28px;
  --radius-full:  9999px;

  /* Shadows */
  --shadow-xs:    0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm:    0 2px 8px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md:    0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-lg:    0 8px 32px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-xl:    0 16px 48px rgba(0,0,0,0.12), 0 8px 20px rgba(0,0,0,0.08);
  --shadow-blue:  0 8px 24px rgba(26,86,219,0.30);
  --shadow-gold:  0 8px 24px rgba(212,160,23,0.25);

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --topbar-height: 64px;

  /* Transitions */
  --transition-fast:   all 0.15s ease;
  --transition-base:   all 0.25s ease;
  --transition-slow:   all 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-Index */
  --z-sidebar:   100;
  --z-topbar:    200;
  --z-modal:     300;
  --z-toast:     400;
  --z-overlay:   250;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-app);
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover { color: var(--primary-800); }

ul, ol { list-style: none; }

button {
  cursor: pointer;
  font-family: var(--font-primary);
  border: none;
  background: none;
}

input, select, textarea {
  font-family: var(--font-primary);
  font-size: 0.875rem;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--gray-900);
}

/* ============================================================
   LAYOUT — SIDEBAR + MAIN
   ============================================================ */
.app-wrapper {
  display: flex;
  min-height: 100vh;
  position: relative;
}

.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--bg-sidebar);
  background-image: var(--bg-pattern);
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  transition: var(--transition-slow);
  overflow: hidden;
  box-shadow: 4px 0 20px rgba(0,0,0,0.15);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar-header {
  padding: 20px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  min-height: 72px;
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-gold);
}

.sidebar-brand {
  overflow: hidden;
  transition: var(--transition-slow);
}

.sidebar-brand h1 {
  color: white;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.sidebar-brand span {
  color: var(--gold-300);
  font-size: 0.7rem;
  font-weight: 500;
  white-space: nowrap;
}

.sidebar.collapsed .sidebar-brand {
  opacity: 0;
  width: 0;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.2) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }

.nav-section {
  margin-bottom: 4px;
}

.nav-section-label {
  padding: 8px 20px 4px;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  white-space: nowrap;
  overflow: hidden;
  transition: var(--transition-base);
}

.sidebar.collapsed .nav-section-label {
  opacity: 0;
  height: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  margin: 2px 10px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.75);
  font-size: 0.825rem;
  font-weight: 500;
  transition: var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  position: relative;
}

.nav-link:hover {
  background: rgba(255,255,255,0.12);
  color: white;
  transform: translateX(2px);
}

.nav-link.active {
  background: rgba(255,255,255,0.18);
  color: white;
  font-weight: 600;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  background: var(--gold-400);
  border-radius: 0 4px 4px 0;
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.nav-text {
  transition: var(--transition-slow);
}

.sidebar.collapsed .nav-text {
  opacity: 0;
  width: 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--gold-500);
  color: var(--gray-900);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.sidebar.collapsed .nav-badge {
  display: none;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.sidebar-user:hover { background: rgba(255,255,255,0.1); }

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.3);
}

.sidebar-user-info {
  overflow: hidden;
  transition: var(--transition-slow);
}

.sidebar.collapsed .sidebar-user-info { opacity: 0; width: 0; }

.sidebar-user-name {
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.sidebar-user-role {
  color: var(--gold-300);
  font-size: 0.7rem;
  white-space: nowrap;
}

/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: var(--transition-slow);
  width: calc(100% - var(--sidebar-width));
}

.main-content.expanded {
  margin-left: var(--sidebar-collapsed);
  width: calc(100% - var(--sidebar-collapsed));
}

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  height: var(--topbar-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: var(--z-topbar);
  box-shadow: var(--shadow-xs);
}

.topbar-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-600);
  font-size: 1.1rem;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.topbar-toggle:hover {
  background: var(--gray-100);
  color: var(--primary-600);
}

.topbar-breadcrumb {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
}

.breadcrumb-item { color: var(--gray-500); }
.breadcrumb-item.active { color: var(--gray-800); font-weight: 600; }
.breadcrumb-separator { color: var(--gray-300); }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-600);
  font-size: 1rem;
  transition: var(--transition-fast);
  position: relative;
}

.topbar-btn:hover {
  background: var(--gray-100);
  color: var(--primary-600);
}

.topbar-badge {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: var(--radius-full);
  border: 2px solid white;
}

.topbar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  border: 2px solid var(--primary-200);
  transition: var(--transition-fast);
}

.topbar-avatar:hover { border-color: var(--primary-400); }

/* ============================================================
   PAGE CONTENT
   ============================================================ */
.page-content {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  width: 100%;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
}

.page-subtitle {
  color: var(--gray-500);
  font-size: 0.875rem;
  margin-top: 4px;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  overflow: hidden;
  transition: var(--transition-base);
}

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

.card-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title i {
  color: var(--primary-600);
  font-size: 1rem;
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
}

/* ============================================================
   KPI CARDS
   ============================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--kpi-color, var(--primary-600));
}

.kpi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.kpi-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--kpi-bg, var(--primary-50));
  color: var(--kpi-color, var(--primary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.kpi-content { flex: 1; min-width: 0; }

.kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1;
  margin-bottom: 4px;
}

.kpi-label {
  font-size: 0.775rem;
  color: var(--gray-500);
  font-weight: 500;
}

.kpi-trend {
  font-size: 0.7rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 3px;
  margin-top: 6px;
}

.kpi-trend.up { color: var(--success); }
.kpi-trend.down { color: var(--danger); }

/* KPI Color Variants */
.kpi-blue    { --kpi-color: #1a56db; --kpi-bg: #dbeafe; }
.kpi-green   { --kpi-color: #10b981; --kpi-bg: #d1fae5; }
.kpi-gold    { --kpi-color: #d4a017; --kpi-bg: #fef3c7; }
.kpi-purple  { --kpi-color: #8b5cf6; --kpi-bg: #ede9fe; }
.kpi-red     { --kpi-color: #ef4444; --kpi-bg: #fee2e2; }
.kpi-cyan    { --kpi-color: #06b6d4; --kpi-bg: #cffafe; }
.kpi-orange  { --kpi-color: #f97316; --kpi-bg: #ffedd5; }
.kpi-pink    { --kpi-color: #ec4899; --kpi-bg: #fce7f3; }

/* ============================================================
   GRID UTILITIES
   ============================================================ */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }

/* ============================================================
   TYPOGRAPHY UTILITIES
   ============================================================ */
.text-xs    { font-size: 0.7rem; }
.text-sm    { font-size: 0.8rem; }
.text-base  { font-size: 0.875rem; }
.text-md    { font-size: 1rem; }
.text-lg    { font-size: 1.125rem; }
.text-xl    { font-size: 1.25rem; }
.text-2xl   { font-size: 1.5rem; }
.text-3xl   { font-size: 1.875rem; }

.font-normal  { font-weight: 400; }
.font-medium  { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold    { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.text-primary  { color: var(--primary-600); }
.text-gold     { color: var(--gold-500); }
.text-success  { color: var(--success); }
.text-warning  { color: var(--warning); }
.text-danger   { color: var(--danger); }
.text-muted    { color: var(--gray-500); }
.text-dark     { color: var(--gray-900); }
.text-white    { color: white; }

.text-center { text-align: center; }
.text-right  { text-align: right; }

/* ============================================================
   FLEX UTILITIES
   ============================================================ */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.flex-1 { flex: 1; }

/* ============================================================
   SPACING UTILITIES
   ============================================================ */
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }

/* ============================================================
   STATUS BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-primary { background: var(--primary-100); color: var(--primary-700); }
.badge-success { background: var(--success-bg); color: #065f46; }
.badge-warning { background: var(--warning-bg); color: #92400e; }
.badge-danger  { background: var(--danger-bg);  color: #991b1b; }
.badge-gray    { background: var(--gray-100);   color: var(--gray-600); }
.badge-gold    { background: var(--gold-100);   color: var(--gold-700); }
.badge-info    { background: var(--info-bg);    color: #155e75; }

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.progress {
  height: 8px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--primary-600), var(--primary-400));
  transition: width 0.6s ease;
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

.progress-sm { height: 4px; }
.progress-lg { height: 12px; }
.progress-success .progress-bar { background: linear-gradient(90deg, var(--success), #34d399); }
.progress-warning .progress-bar { background: linear-gradient(90deg, var(--warning), #fcd34d); }
.progress-gold .progress-bar { background: linear-gradient(90deg, var(--gold-600), var(--gold-400)); }

/* ============================================================
   DIVIDER
   ============================================================ */
.divider {
  height: 1px;
  background: var(--gray-200);
  margin: 20px 0;
}

/* ============================================================
   OVERLAY
   ============================================================ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: var(--z-overlay);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
}

.toast {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  animation: slideInRight 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border-left: 4px solid var(--toast-color, var(--primary-600));
}

.toast-icon {
  font-size: 1.1rem;
  color: var(--toast-color, var(--primary-600));
  flex-shrink: 0;
  margin-top: 1px;
}

.toast-content { flex: 1; }
.toast-title { font-weight: 600; font-size: 0.875rem; color: var(--gray-800); }
.toast-msg { font-size: 0.775rem; color: var(--gray-500); margin-top: 2px; }
.toast-close { color: var(--gray-400); font-size: 0.9rem; cursor: pointer; flex-shrink: 0; }
.toast-close:hover { color: var(--gray-700); }

.toast-success { --toast-color: var(--success); }
.toast-warning { --toast-color: var(--warning); }
.toast-danger  { --toast-color: var(--danger); }
.toast-info    { --toast-color: var(--info); }

/* ============================================================
   SKELETON LOADER
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

.skeleton-text  { height: 14px; margin-bottom: 8px; }
.skeleton-title { height: 20px; margin-bottom: 12px; width: 60%; }
.skeleton-card  { height: 120px; border-radius: var(--radius-lg); }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--gray-400);
}

.empty-state-icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 8px;
}

.empty-state-desc { font-size: 0.875rem; }

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

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

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

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

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

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

@keyframes ripple {
  0%   { transform: scale(0); opacity: 1; }
  100% { transform: scale(4); opacity: 0; }
}

.animate-fade-in    { animation: fadeIn 0.3s ease; }
.animate-fade-in-up { animation: fadeInUp 0.4s ease; }
.animate-scale-in   { animation: scaleIn 0.3s ease; }
.animate-spin       { animation: spin 1s linear infinite; }
.animate-pulse      { animation: pulse 2s ease infinite; }
.animate-float      { animation: float 3s ease infinite; }

/* ============================================================
   SCROLLBAR GLOBAL
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 240px;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width) !important;
  }

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

  .main-content {
    margin-left: 0 !important;
    width: 100% !important;
  }

  .page-content { padding: 16px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .page-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .grid-4  { grid-template-columns: 1fr; }
  .page-content { padding: 12px; }
}