/*
==============================================
ADMIN PANEL - CLEAN & PROFESSIONAL DESIGN
==============================================
*/

:root {
  /* Colors - Soft & Professional Palette */
  --color-primary: #6366f1;
  --color-primary-light: #a5b4fc;
  --color-primary-dark: #4f46e5;

  --color-secondary: #64748b;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Neutral Colors */
  --color-white: #ffffff;
  --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;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Layout */
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 80px;
  --header-height: 64px;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-gray-700);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout Structure */
.admin-layout {
  height: 100vh;
  overflow: hidden;
}

.admin-container {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  height: 100vh;
  transition: grid-template-columns 0.3s ease;
}

.main-content {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.content-area {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  background-color: var(--color-gray-50);
}

/* Sidebar Styles */
.sidebar {
  background-color: var(--color-white);
  border-right: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
  z-index: 40;
  transition: width 0.3s ease;
}

.sidebar-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  overflow: hidden;
  min-width: 0;
}

.sidebar-icon-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 6px;
  flex-shrink: 0;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
  white-space: nowrap;
  overflow: hidden;
  transition: opacity 0.2s ease, max-width 0.3s ease;
  max-width: 200px;
}

.sidebar-nav {
  flex: 1;
  padding: var(--spacing-lg) 0;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: var(--spacing-xl);
}

.nav-header {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  padding: 0 var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.nav-list {
  list-style: none;
}

.nav-item {
  margin-bottom: var(--spacing-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-gray-600);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  border-radius: 0;
  margin: 0 var(--spacing-sm);
  white-space: nowrap;
  overflow: hidden;
}

.nav-link:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
  border-radius: var(--radius-md);
}

.nav-link.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-radius: var(--radius-md);
}

.nav-link i {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.sidebar-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.user-avatar.small {
  width: 32px;
  height: 32px;
  font-size: var(--font-size-xs);
}

.user-details {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-900);
}

.user-role {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  text-transform: capitalize;
}

.btn-logout {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-top: var(--spacing-md);
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  color: var(--color-error);
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-logout:hover {
  background-color: #fee2e2;
  border-color: #fca5a5;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px #ef44440d;
}

.btn-logout:active {
  transform: translateY(0);
}

.logout-icon {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.logout-text {
  flex: 1;
  text-align: left;
}

.user-info-collapsed .logout-text {
  display: none;
}

/* Header Styles */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 30;
  overflow: visible;
}

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

.page-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  position: relative;
}

/* Search Box */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 300px;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-left: 2.5rem;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.search-icon {
  position: absolute;
  left: var(--spacing-sm);
  color: var(--color-gray-400);
  width: 20px;
  height: 20px;
}

/* Buttons */
.icon-button {
  position: relative;
  padding: var(--spacing-sm);
  border: none;
  background: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-gray-600);
}

.icon-button:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

.user-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border: none;
  background: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-gray-700);
}

.user-button:hover {
  background-color: var(--color-gray-100);
}

.user-name-header {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.icon-button .badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: var(--color-error);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

/* Dropdown Styles */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-sm);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 250px;
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
}

.dropdown-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-gray-200);
}

.dropdown-header h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-900);
}

.dropdown-content {
  padding: var(--spacing-sm);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-gray-700);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
  border: none;
  background: none;
  width: 100%;
  cursor: pointer;
}

.dropdown-item:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

.dropdown-item.logout {
  color: var(--color-error);
}

.dropdown-item.logout:hover {
  background-color: rgba(239, 68, 68, 0.1);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--color-gray-200);
  margin: var(--spacing-sm) 0;
}

.dropdown-footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-gray-200);
}

.view-all {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

/* Notification Items */
.notification-item {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.notification-item:hover {
  background-color: var(--color-gray-50);
}

.notification-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-dark);
}

.notification-content p {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-900);
  margin-bottom: 2px;
}

.notification-time {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

/* Alert Styles */
.alert {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--color-success);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--color-error);
}

.alert-close {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

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

/* Mobile close button inside sidebar */
.sidebar-close-mobile {
  display: none; /* hidden on desktop */
  background: none;
  border: none;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-gray-500);
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.sidebar-close-mobile:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

/* Header Toggle Button (always visible) */
.header-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-gray-600);
  transition: all 0.2s ease;
}

.header-toggle:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

.header-toggle svg {
  width: 20px;
  height: 20px;
}

/* Nav Icon */
.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* User info collapsed (only shown when sidebar is collapsed) */
.user-info-collapsed {
  display: none;
}

/* Sidebar Collapsed State */
.admin-container.sidebar-collapsed {
  grid-template-columns: var(--sidebar-collapsed-width) 1fr;
}

.admin-container.sidebar-collapsed .sidebar {
  width: var(--sidebar-collapsed-width);
  overflow: hidden;
}

.admin-container.sidebar-collapsed .sidebar-header {
  padding: var(--spacing-md) var(--spacing-sm);
  justify-content: center;
}

.admin-container.sidebar-collapsed .logo {
  justify-content: center;
}

.admin-container.sidebar-collapsed .logo-text {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
}

.admin-container.sidebar-collapsed .sidebar-close-mobile {
  display: none;
}

.admin-container.sidebar-collapsed .nav-section {
  margin-bottom: var(--spacing-md);
}

.admin-container.sidebar-collapsed .nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0;
}

.admin-container.sidebar-collapsed .nav-item {
  width: 100%;
  display: flex;
  justify-content: center;
  position: relative; /* for tooltips */
  margin-bottom: 0;
}

.admin-container.sidebar-collapsed .nav-item-text {
  display: none;
}

.admin-container.sidebar-collapsed .nav-header {
  display: none;
}

.admin-container.sidebar-collapsed .nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  margin: 0;
  border-radius: var(--radius-md);
}

.admin-container.sidebar-collapsed .nav-link:hover {
  border-radius: var(--radius-md);
}

.admin-container.sidebar-collapsed .nav-link svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.admin-container.sidebar-collapsed .sidebar-footer {
  padding: var(--spacing-md) var(--spacing-sm);
  display: flex;
  justify-content: center;
}

.admin-container.sidebar-collapsed .user-info {
  display: none;
}

.admin-container.sidebar-collapsed .user-info-collapsed {
  display: flex;
  justify-content: center;
}

.admin-container.sidebar-collapsed .btn-logout {
  width: auto;
  padding: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Tooltip for collapsed sidebar */

.admin-container.sidebar-collapsed .nav-item:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + var(--spacing-sm));
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--color-gray-900);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  z-index: 1000;
  pointer-events: none;
}

.admin-container.sidebar-collapsed .nav-item:hover::before {
  content: '';
  position: absolute;
  left: calc(100% + 2px);
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-right-color: var(--color-gray-900);
  z-index: 1000;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 30;
}

/* Responsive Design */
@media (max-width: 768px) {
  .admin-container {
    grid-template-columns: 1fr;
  }

  .admin-container.sidebar-collapsed {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 40;
    width: var(--sidebar-width);
  }

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

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

  .sidebar-close-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-only {
    display: block;
  }

  .desktop-hidden {
    display: block;
  }

  .search-input {
    width: 200px;
  }

  .user-name-header {
    display: none;
  }

  .content-area {
    padding: var(--spacing-lg);
  }

  /* Reset collapsed styles on mobile — sidebar shows fully expanded */
  .admin-container.sidebar-collapsed .sidebar-header,
  .admin-container.sidebar-collapsed .sidebar-footer {
    padding: var(--spacing-lg);
    justify-content: space-between;
  }

  .admin-container.sidebar-collapsed .logo {
    justify-content: flex-start;
  }

  .admin-container.sidebar-collapsed .logo-text {
    max-width: 200px;
    opacity: 1;
    overflow: visible;
  }

  .admin-container.sidebar-collapsed .nav-item-text {
    display: initial;
  }

  .admin-container.sidebar-collapsed .nav-header {
    display: block;
  }

  .admin-container.sidebar-collapsed .user-info {
    display: flex;
  }

  .admin-container.sidebar-collapsed .user-info-collapsed {
    display: none;
  }

  .admin-container.sidebar-collapsed .nav-link {
    justify-content: flex-start;
    padding: var(--spacing-sm) var(--spacing-lg);
    margin: 0 var(--spacing-sm);
  }

  .admin-container.sidebar-collapsed .nav-link svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 0 var(--spacing-lg);
  }

  .search-box {
    display: none;
  }

  .content-area {
    padding: var(--spacing-md);
  }

  .page-title {
    font-size: var(--font-size-lg);
  }
}