:root {
  --primary-color: #800000;
  --secondary-color: #a00000;
  --accent-color: #ff6b6b;
  --bg-color: #f8f9fa;
  --bg-light: #ffffff;
  --text-color: #2c3e50;
  --text-light: #6c757d;
  --border-color: #dee2e6;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --info-color: #17a2b8;
  --border-radius: 8px;
  --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

/* Login Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: white;
  padding: 2rem;
  border-radius: var(--border-radius);
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--box-shadow);
}

.modal h2 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-color);
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(128, 0, 0, 0.1);
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

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

.btn-success {
  background: var(--success-color);
  color: white;
}

.btn-danger {
  background: var(--danger-color);
  color: white;
}

.btn-warning {
  background: var(--warning-color);
  color: white;
}

.btn-info {
  background: var(--info-color);
  color: white;
}

/* Dashboard Layout */
.dashboard {
  display: flex;
  min-height: 100vh;
}

.dashboard.hidden {
  display: none;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--bg-light);
  box-shadow: 2px 0 10px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
  color: var(--primary-color);
  font-size: 1.5rem;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.nav-link:hover, .nav-link.active {
  background: rgba(128, 0, 0, 0.1);
  border-left-color: var(--primary-color);
  color: var(--primary-color);
}

.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.content-header {
  background: var(--bg-light);
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.content-header h1 {
  color: var(--primary-color);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.notifications {
  position: relative;
}

.notification-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-color);
  cursor: pointer;
  position: relative;
  padding: 0.5rem;
}

.notification-count {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--danger-color);
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.notification-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  width: 300px;
  background: var(--bg-light);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: 100;
}

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

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

.notification-list {
  max-height: 300px;
  overflow-y: auto;
}

.content-body {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

.content-section {
  display: none;
}

.content-section.active {
  display: block;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.stat-info h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.stat-info p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Charts */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
}

.chart-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.chart-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Tables */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.search-filter {
  display: flex;
  gap: 1rem;
}

.search-filter input, .search-filter select {
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
}

.table-container {
  background: var(--bg-light);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow-x: auto;
}

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

.data-table th, .data-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-color);
  font-weight: 600;
  color: var(--primary-color);
}

.status {
  padding: 0.25rem 0.5rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.status-pending {
  background: rgba(255, 193, 7, 0.2);
  color: var(--warning-color);
}

.status-confirmed {
  background: rgba(40, 167, 69, 0.2);
  color: var(--success-color);
}

.status-completed {
  background: rgba(23, 162, 184, 0.2);
  color: var(--info-color);
}

.status-cancelled {
  background: rgba(220, 53, 69, 0.2);
  color: var(--danger-color);
}

/* Messages */
.messages-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  height: 600px;
}

.messages-list, .message-detail {
  background: var(--bg-light);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow-y: auto;
}

.message-item {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
}

.message-item:hover, .message-item.active {
  background: var(--bg-color);
}

.message-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-light);
}

.message-placeholder i {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Reviews Grid */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

.review-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.review-rating {
  color: #ffc107;
}

.review-actions {
  display: flex;
  gap: 0.5rem;
}

/* Analytics */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.analytics-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

/* Announcements */
.announcements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.announcement-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  position: relative;
}

.announcement-type {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.5rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.announcement-type.offer {
  background: rgba(255, 107, 107, 0.2);
  color: var(--accent-color);
}

.announcement-type.news {
  background: rgba(23, 162, 184, 0.2);
  color: var(--info-color);
}

/* Clients Grid */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.client-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.client-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.client-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

/* Settings */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
}

.setting-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

/* Modal Enhancements */
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
}

/* Mobile hamburger */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--primary-color);
  cursor: pointer;
  padding: 0.4rem 0.6rem;
  margin-right: 0.75rem;
  border-radius: 6px;
}
.menu-toggle:hover { background: rgba(128,0,0,0.08); }

/* Responsive */
@media (max-width: 768px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .sidebar {
    width: 100%;
    position: fixed;
    top: 0;
    left: -100%;
    height: 100vh;
    z-index: 999;
    transition: var(--transition);
  }

  .sidebar.active {
    left: 0;
  }

  .main-content {
    width: 100%;
  }

  .content-header {
    padding: 1rem;
  }

  .content-body {
    padding: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }

  .messages-container {
    grid-template-columns: 1fr;
    height: auto;
  }
}

/* Loading States */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s linear infinite;
}

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

/* Toast Notifications */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--success-color);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transform: translateX(100%);
  transition: var(--transition);
  z-index: 1001;
}

.toast.show {
  transform: translateX(0);
}

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

.toast.warning {
  background: var(--warning-color);
}

.toast.info {
  background: var(--info-color);
}