/* ============================================
   نظام التقسيط الذكي - الأنماط الرئيسية
   Professional Installment Management System
   ============================================ */

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

:root {
  --primary: #1e3a5f;
  --primary-light: #2a5298;
  --primary-dark: #0f1f36;
  --accent: #f0a500;
  --accent-light: #ffc107;
  --accent-dark: #e08c00;
  --success: #00b894;
  --success-light: #00cec9;
  --danger: #d63031;
  --danger-light: #ff7675;
  --warning: #fdcb6e;
  --warning-dark: #e17055;
  --info: #0984e3;
  --info-light: #74b9ff;
  --secondary: #636e72;
  --dark: #1a1f2e;
  --sidebar-width: 260px;
  --topbar-height: 65px;
  --card-radius: 12px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-bg: linear-gradient(180deg, #0f1f36 0%, #1e3a5f 50%, #162b47 100%);
  --body-bg: #f0f2f8;
  --card-bg: #ffffff;
  --text-primary: #1a1f2e;
  --text-secondary: #636e72;
  --text-muted: #b2bec3;
  --border: #e1e5eb;
}

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

html {
  direction: rtl;
  scroll-behavior: smooth;
}

body {
  font-family: 'Cairo', 'Tajawal', sans-serif;
  background: var(--body-bg);
  color: var(--text-primary);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* =====================
   تخطيط الصفحة الرئيسي
   ===================== */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* =====================
   الشريط الجانبي
   ===================== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 1000;
  transition: var(--transition);
  box-shadow: -4px 0 20px rgba(0,0,0,0.3);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.sidebar-header {
  padding: 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(0,0,0,0.2);
  position: sticky;
  top: 0;
  z-index: 10;
}

.sidebar-logo {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  box-shadow: 0 4px 15px rgba(240,165,0,0.4);
  flex-shrink: 0;
}

.sidebar-title {
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
}

.sidebar-title small {
  font-size: 10px;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
  display: block;
}

.sidebar-nav {
  padding: 12px 0;
}

.nav-section-title {
  color: rgba(255,255,255,0.3);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 12px 20px 4px;
  margin-top: 8px;
}

.nav-item {
  margin: 1px 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  border-radius: 8px;
  transition: var(--transition);
  font-size: 13px;
  font-weight: 500;
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  background: rgba(255,255,255,0.1);
  color: #ffffff;
  transform: translateX(-2px);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(240,165,0,0.4);
}

.nav-link .nav-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  font-size: 15px;
  background: rgba(255,255,255,0.08);
  flex-shrink: 0;
  transition: var(--transition);
}

.nav-link.active .nav-icon {
  background: rgba(255,255,255,0.2);
}

.nav-link .nav-badge {
  margin-right: auto;
  margin-left: 0;
  background: var(--danger);
  color: white;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 700;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: auto;
  position: sticky;
  bottom: 0;
  background: rgba(0,0,0,0.3);
}

.user-info-sidebar {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.8);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: white;
  flex-shrink: 0;
}

.user-details { flex: 1; min-width: 0; }
.user-name { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role-text { font-size: 10px; color: rgba(255,255,255,0.4); }

/* =====================
   المحتوى الرئيسي
   ===================== */
.main-content {
  margin-right: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: var(--transition);
}

/* =====================
   شريط العنوان العلوي
   ===================== */
.topbar {
  height: var(--topbar-height);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.topbar-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  color: var(--text-secondary);
  transition: var(--transition);
  display: none;
}

.topbar-toggle:hover { background: var(--body-bg); }

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

.breadcrumb-item {
  color: var(--text-secondary);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.breadcrumb-item.active { color: var(--text-primary); font-weight: 600; }
.breadcrumb-item:not(.active)::after { content: '/'; margin-right: 8px; color: var(--text-muted); }

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

.topbar-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--body-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  text-decoration: none;
}

.topbar-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }

.notification-badge {
  position: absolute;
  top: -4px;
  left: -4px;
  background: var(--danger);
  color: white;
  font-size: 9px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.topbar-date {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--body-bg);
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* =====================
   منطقة المحتوى
   ===================== */
.content-area {
  padding: 24px;
  flex: 1;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-title-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

/* =====================
   البطاقات (Cards)
   ===================== */
.card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #f8f9fd, #ffffff);
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title i { color: var(--primary); }

.card-body { padding: 20px; }

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

.stat-card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
  border-radius: 0 12px 12px 0;
}

.stat-card.primary::before { background: var(--primary); }
.stat-card.success::before { background: var(--success); }
.stat-card.warning::before { background: var(--accent); }
.stat-card.danger::before { background: var(--danger); }
.stat-card.info::before { background: var(--info); }
.stat-card.secondary::before { background: var(--secondary); }

.stat-card-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 14px;
}

.stat-card.primary .stat-card-icon { background: rgba(30,58,95,0.1); color: var(--primary); }
.stat-card.success .stat-card-icon { background: rgba(0,184,148,0.1); color: var(--success); }
.stat-card.warning .stat-card-icon { background: rgba(240,165,0,0.1); color: var(--accent); }
.stat-card.danger .stat-card-icon { background: rgba(214,48,49,0.1); color: var(--danger); }
.stat-card.info .stat-card-icon { background: rgba(9,132,227,0.1); color: var(--info); }
.stat-card.secondary .stat-card-icon { background: rgba(99,110,114,0.1); color: var(--secondary); }

.stat-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-change {
  font-size: 11px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 3px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* =====================
   الجداول
   ===================== */
.table-responsive { border-radius: var(--card-radius); overflow: hidden; }

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}

.data-table thead th {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: rgba(255,255,255,0.9);
  padding: 12px 16px;
  font-weight: 600;
  font-size: 12px;
  white-space: nowrap;
  border: none;
  text-align: right;
}

.data-table tbody tr {
  transition: var(--transition);
  border-bottom: 1px solid var(--border);
}

.data-table tbody tr:hover { background: rgba(30,58,95,0.04); }
.data-table tbody tr:last-child { border-bottom: none; }

.data-table tbody td {
  padding: 12px 16px;
  vertical-align: middle;
  border: none;
  color: var(--text-primary);
}

.data-table tbody tr:nth-child(even) { background: rgba(240,242,248,0.5); }
.data-table tbody tr:nth-child(even):hover { background: rgba(30,58,95,0.04); }

/* =====================
   الأزرار
   ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 8px;
  font-family: 'Cairo', sans-serif;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 12px rgba(30,58,95,0.3); }
.btn-primary:hover { background: var(--primary-light); box-shadow: 0 6px 20px rgba(30,58,95,0.4); color: white; }

.btn-accent { background: var(--accent); color: white; box-shadow: 0 4px 12px rgba(240,165,0,0.3); }
.btn-accent:hover { background: var(--accent-dark); color: white; }

.btn-success { background: var(--success); color: white; box-shadow: 0 4px 12px rgba(0,184,148,0.3); }
.btn-success:hover { background: var(--success-light); color: white; }

.btn-danger { background: var(--danger); color: white; box-shadow: 0 4px 12px rgba(214,48,49,0.3); }
.btn-danger:hover { background: var(--danger-light); color: white; }

.btn-warning { background: var(--accent-light); color: #1a1f2e; }
.btn-warning:hover { background: var(--accent); color: white; }

.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { background: var(--body-bg); }

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 12px 28px; font-size: 15px; }
.btn-icon { padding: 8px; width: 36px; height: 36px; justify-content: center; }

/* =====================
   النماذج (Forms)
   ===================== */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-label .required { color: var(--danger); margin-right: 2px; }

.form-control, .form-select {
  width: 100%;
  padding: 9px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: 'Cairo', sans-serif;
  font-size: 13px;
  color: var(--text-primary);
  background: #ffffff;
  transition: var(--transition);
  outline: none;
  direction: rtl;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,58,95,0.1);
}

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

.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .form-control { border-radius: 8px 0 0 8px; }
.input-group .input-group-text {
  background: var(--body-bg);
  border: 1.5px solid var(--border);
  border-right: none;
  border-radius: 0 8px 8px 0;
  padding: 0 12px;
  display: flex;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
}

.form-text { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.invalid-feedback { font-size: 11px; color: var(--danger); margin-top: 4px; }

/* =====================
   الشارات (Badges)
   ===================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  font-family: 'Cairo', sans-serif;
}

.bg-success { background: rgba(0,184,148,0.15) !important; color: var(--success) !important; }
.bg-danger { background: rgba(214,48,49,0.12) !important; color: var(--danger) !important; }
.bg-warning { background: rgba(240,165,0,0.12) !important; color: var(--accent-dark) !important; }
.bg-primary { background: rgba(30,58,95,0.12) !important; color: var(--primary) !important; }
.bg-info { background: rgba(9,132,227,0.12) !important; color: var(--info) !important; }
.bg-secondary { background: rgba(99,110,114,0.12) !important; color: var(--secondary) !important; }
.bg-dark { background: rgba(26,31,46,0.12) !important; color: var(--dark) !important; }

/* =====================
   التنبيهات
   ===================== */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}

.alert-success { background: rgba(0,184,148,0.1); border-color: rgba(0,184,148,0.3); color: #006e54; }
.alert-danger { background: rgba(214,48,49,0.1); border-color: rgba(214,48,49,0.3); color: #a01c1c; }
.alert-warning { background: rgba(240,165,0,0.1); border-color: rgba(240,165,0,0.3); color: #7a5400; }
.alert-info { background: rgba(9,132,227,0.1); border-color: rgba(9,132,227,0.3); color: #065e9e; }

/* =====================
   المودال (Modals)
   ===================== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal-box {
  background: var(--card-bg);
  border-radius: 16px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { transform: scale(0.9) translateY(-20px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title { font-size: 16px; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 6px;
  transition: var(--transition);
}
.modal-close:hover { background: var(--body-bg); color: var(--danger); }
.modal-body { padding: 22px; }
.modal-footer { padding: 16px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* =====================
   لوحة التحكم - الرسوم البيانية
   ===================== */
.chart-container {
  position: relative;
  height: 280px;
}

.chart-card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* =====================
   قائمة الأنشطة
   ===================== */
.activity-list { list-style: none; }
.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.activity-item:last-child { border-bottom: none; }

.activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.activity-content { flex: 1; }
.activity-text { font-size: 13px; color: var(--text-primary); }
.activity-time { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* =====================
   جدول الأقساط
   ===================== */
.installment-schedule {
  display: grid;
  gap: 8px;
}

.installment-row {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--body-bg);
  gap: 12px;
  border: 1px solid var(--border);
}

.installment-num {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--primary);
  color: white;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* =====================
   بطاقة العميل
   ===================== */
.customer-card {
  display: flex;
  align-items: center;
  gap: 12px;
}

.customer-avatar-lg {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
}

/* =====================
   الفلاتر والبحث
   ===================== */
.search-filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 16px;
  background: var(--card-bg);
  border-radius: var(--card-radius);
  border: 1px solid var(--border);
}

.search-input-wrapper {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-input-wrapper i {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.search-input-wrapper input {
  padding-right: 36px;
  width: 100%;
}

/* =====================
   الصفحة الرئيسية (Login)
   ===================== */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f1f36 0%, #1e3a5f 40%, #2a5298 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240,165,0,0.15), transparent 70%);
  top: -100px;
  left: -100px;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42,82,152,0.3), transparent 70%);
  bottom: -100px;
  right: -100px;
}

.login-card {
  background: rgba(255,255,255,0.97);
  border-radius: 20px;
  padding: 48px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  position: relative;
  z-index: 10;
  text-align: center;
}

.login-logo {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: white;
  margin-bottom: 20px;
  box-shadow: 0 8px 25px rgba(30,58,95,0.4);
}

.login-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.login-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

/* =====================
   قائمة منسدلة للمستخدم
   ===================== */
.dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  z-index: 500;
  animation: fadeIn 0.2s ease;
}

.dropdown-menu.open { display: block; }

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

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 13px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.dropdown-item:hover { background: var(--body-bg); }
.dropdown-item.text-danger { color: var(--danger); }
.dropdown-divider { height: 1px; background: var(--border); margin: 6px 0; }

/* =====================
   شريط التقدم
   ===================== */
.progress {
  height: 6px;
  background: var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 10px;
  transition: width 0.6s ease;
}

/* =====================
   Tabs
   ===================== */
.tabs-wrapper {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
  gap: 0;
}

.tab-btn {
  padding: 10px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Cairo', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-btn:hover { color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* =====================
   Empty State
   ===================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state i {
  font-size: 60px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state h5 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state p { font-size: 13px; }

/* =====================
   Print Styles
   ===================== */
@media print {
  .sidebar, .topbar, .page-header .btn, .no-print { display: none !important; }
  .main-content { margin-right: 0 !important; }
  .content-area { padding: 0 !important; }
  .card { box-shadow: none !important; border: 1px solid #ddd !important; }
}

/* =====================
   Grid System
   ===================== */
.row {
  display: grid;
  gap: 20px;
}

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

.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }

/* =====================
   Utilities
   ===================== */
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--accent) !important; }
.text-muted { color: var(--text-muted) !important; }
.fw-bold { font-weight: 700; }
.fw-600 { font-weight: 600; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.p-0 { padding: 0; }
.w-100 { width: 100%; }
.rounded { border-radius: 8px; }
.cursor-pointer { cursor: pointer; }
.number-font { font-variant-numeric: tabular-nums; font-weight: 700; }

/* =====================
   Responsive Design
   ===================== */
@media (max-width: 1200px) {
  .row-4 { grid-template-columns: repeat(2, 1fr); }
  .stat-cards { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 992px) {
  .row-3 { grid-template-columns: repeat(2, 1fr); }
  .row-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0px;
  }

  .sidebar {
    transform: translateX(100%);
    box-shadow: none;
  }

  .sidebar.open {
    transform: translateX(0);
    width: 260px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.3);
  }

  .main-content { margin-right: 0; }
  .topbar-toggle { display: flex; }

  .content-area { padding: 16px; }

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

  .col-span-2, .col-span-3 { grid-column: span 1; }

  .page-title { font-size: 18px; }

  .data-table { font-size: 12px; }
  .data-table thead th, .data-table tbody td { padding: 10px 10px; }

  .hide-mobile { display: none !important; }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
  }

  .sidebar-overlay.open { display: block; }

  .login-card { padding: 30px 24px; }
}

@media (max-width: 480px) {
  .stat-cards { grid-template-columns: 1fr; }
  .topbar-date { display: none; }
  .search-filter-bar { flex-direction: column; }
}

/* =====================
   Skeleton Loading
   ===================== */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 6px;
}

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

/* =====================
   Custom Scrollbar
   ===================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* =====================
   Animation Classes
   ===================== */
.fade-in { animation: fadeInUp 0.4s ease; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}