/* app.css */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

/* Global Reset & Base */
html, body {
  font-family: var(--font-sans);
  background-color: var(--background);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

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

::selection {
  background-color: var(--primary-light);
  color: var(--primary);
}

[data-bs-theme='dark'] ::selection {
  background-color: var(--primary-light);
  color: var(--text-primary);
}

/* Scrollbar (Premium, Apple-like) */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

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

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

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

[dir="rtl"] @keyframes slideInRight {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0.4); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(var(--primary-rgb), 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0); }
}

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.8); }
  60% { opacity: 1; transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* Utility Classes */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

.gradient-primary {
  background: linear-gradient(135deg, var(--primary), #60A5FA);
  color: #fff;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.animate-fade-up {
  animation: fadeUp var(--transition-normal) forwards;
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) forwards;
}

/* Bootstrap Overrides (Premium feel) */
.btn {
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition-fast);
  padding: 0.5rem 1.25rem;
  letter-spacing: 0.025em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  border: none;
  color: #fff;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover, .btn-primary:focus {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.4);
  background: linear-gradient(135deg, var(--primary-hover), var(--primary));
  color: #fff;
}

.card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  overflow: hidden;
}

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

.form-control, .form-select {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background-color: var(--surface);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
  background-color: var(--surface);
  color: var(--text-primary);
}

.badge {
  padding: 0.35em 0.65em;
  border-radius: var(--radius-full);
  font-weight: 500;
}

.modal-content {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
}

.modal-backdrop.show {
  opacity: 0.5;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.toast {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

.dropdown-menu {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
}

.dropdown-item {
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  transition: all var(--transition-fast);
}

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

/* Layout Components */
.sidebar {
  width: 260px;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  z-index: 1040;
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

[dir="rtl"] .sidebar {
  left: auto;
  right: 0;
  border-right: none;
  border-left: 1px solid var(--border);
}

.main-content {
  margin-left: 260px;
  min-height: 100vh;
  padding: var(--spacing-lg);
  padding-bottom: var(--spacing-xl);
  transition: margin var(--transition-normal);
  width: calc(100% - 260px);
}

[dir="rtl"] .main-content {
  margin-left: 0;
  margin-right: 260px;
}

/* Sidebar Backdrop */
.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 1030;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.sidebar-backdrop.show {
  display: block;
  opacity: 1;
}

/* Responsive Breakpoints */
@media (max-width: 1023.98px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  [dir="rtl"] .sidebar {
    transform: translateX(100%);
  }
  
  .sidebar.open {
    transform: translateX(0) !important;
  }
  
  .main-content {
    margin-left: 0 !important;
    margin-right: 0 !important;
    width: 100% !important;
  }
}

@media (max-width: 767.98px) {
  .main-content {
    padding: var(--spacing-md);
  }
}

@media (max-width: 639.98px) {
  .main-content {
    padding: var(--spacing-sm);
  }
  .container-fluid {
    padding-left: 0.5rem !important;
    padding-right: 0.5rem !important;
  }
}

/* Hide Bottom Nav entirely */
.bottom-nav {
  display: none !important;
}

/* Stat Cards */
.stat-card {
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-icon.primary { background: var(--primary-light); color: var(--primary); }
.stat-icon.success { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.stat-icon.warning { background: rgba(245, 158, 11, 0.1); color: var(--warning); }

/* Skeleton Loading */
.skeleton {
  background: #f6f7f8;
  background: linear-gradient(to right, var(--border) 8%, var(--surface-active) 18%, var(--border) 33%);
  background-size: 800px 104px;
  animation: shimmer 1.5s linear infinite forwards;
  border-radius: var(--radius-sm);
}

.skeleton-text { height: 1rem; width: 100%; margin-bottom: 0.5rem; }
.skeleton-title { height: 1.5rem; width: 60%; margin-bottom: 1rem; }
.skeleton-avatar { width: 40px; height: 40px; border-radius: var(--radius-full); }
.skeleton-card { height: 150px; width: 100%; border-radius: var(--radius-xl); }

/* Empty States */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 4rem;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}