/* Admin Panel - High-End Professional Design */
:root {
  --primary: #1a1a2e;
  --primary-dark: #0f0f1a;
  --secondary: #16213e;
  --accent: #c9a227;
  --accent-light: #e8c547;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --text-dark: #374151;
  --bg: #f8fafc;
  --bg-dark: #0f172a;
  --border: #2d3748;
  --sidebar-width: 260px;
  --topbar-height: 64px;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* Admin Container */
.admin-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
  position: fixed;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.logo i {
  font-size: 28px;
  color: var(--accent);
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
}

.sidebar-nav {
  flex: 1;
  padding: 20px 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
  position: relative;
}

.nav-item:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.nav-item.active {
  background: rgba(201, 162, 39, 0.1);
  color: var(--accent);
  border-left-color: var(--accent);
}

.nav-item i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.nav-item .badge {
  position: absolute;
  right: 20px;
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top Bar */
.top-bar {
  height: var(--topbar-height);
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.admin-name {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dark);
  font-weight: 500;
}

.last-login {
  color: var(--text-muted);
  font-size: 13px;
}

/* Content Area */
.content-area {
  flex: 1;
  padding: 30px;
  background: var(--bg);
}

.page {
  animation: fadeIn 0.3s ease;
}

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

/* Page Header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
}

.page-header h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--primary);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 30px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
}

.stat-info h3 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-info p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

.dashboard-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.dashboard-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dashboard-card h3 i {
  color: var(--accent);
}

/* Recent List */
.recent-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.recent-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg);
  border-radius: 8px;
  transition: background 0.3s ease;
}

.recent-item:hover {
  background: #f1f5f9;
}

.recent-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.recent-item-icon.envelope {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}

.recent-item-icon.box {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.recent-item-info {
  flex: 1;
}

.recent-item-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
}

.recent-item-info p {
  font-size: 12px;
  color: var(--text-muted);
}

.recent-item-date {
  font-size: 12px;
  color: var(--text-muted);
}

.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

/* Filter Bar */
.filter-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 250px;
  position: relative;
}

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

.search-box input {
  width: 100%;
  padding: 12px 12px 12px 42px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent);
}

.filter-bar select {
  padding: 12px 16px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
  color: var(--text-dark);
  cursor: pointer;
}

/* Table */
.table-responsive {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

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

.data-table th {
  background: var(--primary);
  color: #fff;
  padding: 16px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table th:first-child {
  border-radius: var(--radius) 0 0 0;
}

.data-table th:last-child {
  border-radius: 0 var(--radius) 0 0;
}

.data-table td {
  padding: 16px;
  border-bottom: 1px solid #f1f5f9;
  color: var(--text-dark);
  font-size: 14px;
}

.data-table tbody tr {
  transition: background 0.3s ease;
}

.data-table tbody tr:hover {
  background: #f8fafc;
}

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

.loading {
  text-align: center;
  padding: 40px !important;
  color: var(--text-muted);
}

/* Table Image */
.table-image {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 8px;
}

.no-image {
  width: 50px;
  height: 50px;
  background: var(--bg);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* Status Badge */
.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: capitalize;
}

.status-badge.active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.status-badge.draft {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.status-badge.discontinued {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.status-badge.new {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}

.status-badge.replied {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.status-badge.closed {
  background: rgba(107, 114, 128, 0.1);
  color: #6b7280;
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: 8px;
}

.action-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 14px;
}

.action-btn.edit {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info);
}

.action-btn.edit:hover {
  background: var(--info);
  color: #fff;
}

.action-btn.delete {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.action-btn.delete:hover {
  background: var(--danger);
  color: #fff;
}

.action-btn.view {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.action-btn.view:hover {
  background: var(--success);
  color: #fff;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.pagination button {
  padding: 8px 16px;
  border: 1px solid #e5e7eb;
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--text-dark);
}

.pagination button:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.pagination button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: var(--primary-dark);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(201, 162, 39, 0.4);
}

.btn-secondary {
  background: #e5e7eb;
  color: var(--text-dark);
}

.btn-secondary:hover {
  background: #d1d5db;
}

/* Content Sections */
.content-sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.content-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.content-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary-dark);
}

.content-info {
  flex: 1;
}

.content-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.content-info p {
  font-size: 13px;
  color: var(--text-muted);
}

.content-action {
  font-size: 20px;
  color: var(--text-muted);
}

/* Settings Grid */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

.settings-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.settings-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.settings-card h3 i {
  color: var(--accent);
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s ease;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group small {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow: hidden;
  animation: modalIn 0.3s ease;
}

.modal-lg {
  max-width: 700px;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg);
  border-radius: 6px;
  cursor: pointer;
  font-size: 20px;
  color: var(--text-muted);
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: var(--danger);
  color: #fff;
}

.modal-body {
  padding: 24px;
  max-height: 60vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 20px 24px;
  border-top: 1px solid #e5e7eb;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--success);
  color: #fff;
  padding: 16px 24px;
  border-radius: 8px;
  display: none;
  z-index: 2000;
  animation: toastIn 0.3s ease;
}

.toast.show {
  display: block;
}

.toast.error {
  background: var(--danger);
}

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

.toast-content {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .sidebar-toggle {
    display: block;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .settings-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-bar {
    flex-direction: column;
  }
  
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

/* Image Upload Styles */
.image-upload-area {
  border: 2px dashed #e5e7eb;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  background: #fafafa;
}

.upload-placeholder {
  cursor: pointer;
  padding: 30px;
}

.upload-placeholder i {
  font-size: 48px;
  color: #9ca3af;
  margin-bottom: 10px;
}

.upload-placeholder p {
  color: #6b7280;
  margin: 0;
}

.upload-placeholder small {
  color: #9ca3af;
}

.image-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.preview-item {
  position: relative;
  width: 100px;
  height: 100px;
}

.preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.remove-btn {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ef4444;
  color: white;
  border: 2px solid white;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

/* Variant Styles */
.variant-row {
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
}

.variant-row input {
  padding: 10px 12px;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  font-size: 14px;
}

.btn-remove-variant {
  width: 36px;
  background: #ef4444;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
}

.btn-remove-variant:hover {
  background: #dc2626;
}

/* Multi-Image Gallery */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
  margin-top: 15px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid #e5e7eb;
  transition: border-color 0.3s;
}

.gallery-item:hover {
  border-color: var(--accent);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-item .remove-btn {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.9);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item .set-main-btn {
  position: absolute;
  bottom: 5px;
  left: 5px;
  padding: 4px 8px;
  background: rgba(0,0,0,0.7);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 10px;
  cursor: pointer;
}

.gallery-item.main-image {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

.gallery-item.main-image::after {
  content: 'Main';
  position: absolute;
  top: 5px;
  left: 5px;
  background: var(--accent);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: bold;
}